JP2009285542A - Atomizer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an atomizer capable of speedily dissolving effective components produced in large quantity in a discharge part, atomizing the liquid, in which the effective components are dissolved and spraying the liquid to an external space so as to be spread out in the every corner, and having a compact configuration. <P>SOLUTION: The atomizer is provided with an air fan 5, a discharge part 6 located downstream of the air fan 5, a liquid sump 13 located downstream of the discharge part 6, and an atomizing means 60 atomizing liquid L in the liquid sump 13 and discharging. The discharge part 6 includes an insulation spacer 7 having a fine through-hole 10 for introducing air from the air fan 5, an upstream electrode 8a disposed upstream of the insulation spacer 7, and a downstream electrode 8b disposed downstream of the insulation spacer 7. The liquid sump 13 is communicated with the through-hole 10 of the insulation spacer 7. The atomizing means 60 serves as an electrostatic atomizing part 70 electrostatically atomizing the liquid L in the liquid sump 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a spraying apparatus capable of spraying a liquid in which an active ingredient is dissolved to the outside.

  Conventionally, for example, a hair dryer having a discharge portion as disclosed in Patent Document 1 is known. This hair dryer has a structure in which a discharge part is arranged in an air passage in which a blower is arranged, and an active ingredient generated in the discharge part is put on the wind and sprayed to the outside. As the discharge section, a high voltage is generally applied between the needle electrode and the ground electrode, and an active component is generated by corona discharge.

By the way, hydrogen peroxide (H ₂ O ₂ ) is generated when an active ingredient such as superoxide radical (O ₂ ⁻ ) or hydroxy radical (• OH) that is generated in the discharge part is dissolved in water. Hydrogen peroxide is considered to exert effects such as deodorization and sterilization by exposing an appropriate amount. Also, like nitrogen oxides will occur in the discharge unit (NO _X) and nitrate ions (NO 3 ^_-) when the active ingredient, such as dissolved in water, nitric acid is produced. The nitrate ion in nitric acid is considered to exhibit an effect of improving hair quality by exposing a suitable amount to keep the hair weakly acidic and provide water retention. That is, by dissolving the active ingredient generated in the discharge part in a liquid which is water, the liquid can be modified to have an effect such as deodorization and sterilization and a hair quality improving effect.

  As a means for spraying the liquid modified as described above to the user, for example, a liquid reservoir is positioned downstream of the corona discharge type discharge unit, and the active ingredient is added to the liquid in the liquid reservoir. A method may be considered in which the liquid in which the active ingredient is dissolved is atomized by ultrasonic vibration or the like while being dissolved. However, when this method is used, the following problems occur.

  One of the above problems is that it is difficult to produce a large amount of the active ingredient by corona discharge, and that the active ingredient such as a radical is unstable and easily disappears before being dissolved in the liquid. Therefore, a sufficient amount of hydrogen peroxide and nitric acid cannot be generated quickly.

Another problem is that it is necessary to provide another device such as an ultrasonic vibration device in order to atomize the liquid. Since the particle size is a micrometer size, it is difficult to reach every corner of the external space.
JP 2002-191426 A

  The present invention has been invented in view of the above-mentioned problems, and rapidly dissolves an active ingredient produced in a large amount in a discharge part, and atomizes the liquid in which this active ingredient is dissolved, and then in an external space. It is an object of the present invention to provide a spraying device that can be sprayed and spread to every corner and that can be configured compactly.

  The present invention for solving the above-described problems includes a blower 5 that generates air flow, a discharge unit 6 that is located on the downstream side of the blower 5, a liquid reservoir unit 13 that is located on the downstream side of the discharge unit 6, and a liquid It is a spraying device comprising an atomizing means 60 for atomizing and discharging the liquid L in the reservoir 13. The discharge unit 6 includes an insulating spacer 7 having a minute through-hole 10 into which air blown from the blower 5 is introduced, an upstream electrode 8 a disposed on the upstream side of the insulating spacer 7, and a downstream side of the insulating spacer 7. And the downstream electrode 8b. The liquid reservoir 13 communicates with the through hole 10 of the insulating spacer 7 of the discharge part 6. The atomizing means 60 is an electrostatic atomizing unit 70 that electrostatically atomizes and discharges the liquid L in the liquid reservoir 13 by applying a high voltage.

  By using the spray device having the above-described configuration, microplasma discharge is generated in the through-hole 10 of the discharge unit 6 to generate the active ingredient at a high density, and the generated active ingredient is stored in the liquid reservoir 13. Can be supplied promptly. And the electrostatic atomization part 70 can discharge | release outside the liquid L in the liquid reservoir part 13 in which the active ingredient dissolved in large quantities as a nano ion mist with a very small particle size and charged. The nano ion mist of the liquid L has an advantage that it is easily transported to a distant place without causing aggregation after being released, and an advantage that it is easily attached to a living body such as hair and exhibits an effect. In addition, since the discharge unit 6, the liquid reservoir unit 13, and the electrostatic atomization unit 70 are integrally formed in a compact manner, the overall size of the apparatus is not increased.

  In addition, it is preferable that the application electrode 63 used for applying a high voltage in the electrostatic atomization unit 70 also serves as the downstream electrode 8b of the discharge unit 6. In this way, both electrostatic atomization and microplasma discharge can be realized by a single power supply circuit, and the entire apparatus can be made more compact.

  Further, at this time, a high voltage applying unit 9 for applying a high voltage in which an AC component is superimposed on a DC component to the downstream electrode 8b is provided, or a high voltage in which a pulse component is superimposed on a DC component is provided on the downstream electrode 8b. It is preferable to provide the high voltage application part 9 applied to. By doing in this way, both electrostatic atomization and microplasma discharge can be reliably realized by one power supply circuit.

  In addition, the electrostatic atomizing unit 70 is provided with the liquid transport unit 12 protruding from the liquid reservoir 13 and the peripheral side surface of at least the front end of the liquid transport unit 12 is formed in a tapered shape having a smaller diameter toward the front end side. It is preferable. By doing in this way, the concentration degree of the electric field in the front-end | tip part of the liquid conveyance part 12 can be increased, and the electrostatic atomization of the liquid L conveyed to the front-end | tip of the liquid conveyance part 12 can be stabilized.

  Further, the electrostatic atomizing unit 70 is configured such that the liquid transport unit 12 protrudes from the liquid reservoir 13 and the counter electrode 64 is disposed at a position facing the tip of the liquid transport unit 12. preferable. By doing in this way, the concentration degree of the electric field in the front-end | tip part of the liquid conveyance part 12 can be increased, and the electrostatic atomization of the liquid L conveyed to the front-end | tip of the liquid conveyance part 12 can be stabilized.

  Moreover, it is preferable that at least the liquid reservoir 13 is detachably provided among the discharge unit 6, the liquid reservoir 13, and the electrostatic atomizer 70. By doing in this way, various maintenances, such as replenishment of the liquid L in the liquid storage part 13, washing | cleaning, and the removal of the attached scale, can be simply performed with the liquid storage part 13 removed.

  It is also preferable to provide a liquid supply means that collects moisture in the air and supplies it into the liquid reservoir 13. By doing so, it is possible to improve the usability by eliminating the trouble of replenishing the liquid, and it is possible to prevent the scale from adhering.

  Further, at this time, the liquid supply means preferably comprises a heat exchanger 96 that generates condensed water on the cooling side. By doing in this way, it becomes possible to supply the liquid L which consists of dew condensation water rapidly with a simple structure.

  It is also preferable to include a second liquid reservoir 95 that is different from the liquid reservoir 13 and a liquid supply path 11 that supplies the liquid L from the second liquid reservoir 95 to the liquid reservoir 13. In this way, if the liquid L is supplied from the second liquid reservoir 95 to the liquid reservoir 13 by an appropriate amount, the liquid L in which the active ingredient having the necessary concentration is dissolved is contained in the liquid reservoir 13. Can be generated in a short time.

  Further, the air passage 4 for sending the air blown from the blower 5 to the downstream side is branched into a plurality of branch air passages 14, 15,..., And one of the plurality of branch air passages 14, 15,. An air passage that introduces air into the through-hole 10 of the air passage 7, and at least one of the other branch air passages sends out air that joins with the mist that has been atomized and discharged by the electrostatic atomizer 70. It is also preferable to do. By doing in this way, after ensuring sufficient air volume, it can carry on this wind and can discharge | release mist to external space vigorously.

  Further, the air passage 4 for sending the air blown from the blower 5 to the downstream side is branched into a plurality of branch air passages 14, 15,..., And one of the plurality of branch air passages 14, 15,. An air passage through which air is introduced into the through-hole 10 of at least seven, and at least one of the other branch air passages has a heater 66 and an air passage that discharges warm air heated by the heater 66 to the outside. It is also preferable to do. By doing in this way, while blowing warm air using the ventilation from the air blower 5, it can suppress that mist evaporates with the heat of this warm air.

  In the invention according to claim 1, the active ingredient produced in large quantities in the discharge part is quickly dissolved in the liquid in the liquid reservoir part, and the liquid in which the active ingredient is dissolved is atomized by the electrostatic atomization part, and then external space. It can be sprayed to the nanometer size and can be spread to every corner as a charged mist, and the entire spraying device can be made compact.

  In addition to the effect of the invention according to claim 1, the invention according to claim 2 realizes both electrostatic atomization and microplasma discharge by a single power supply circuit, thereby further reducing the size of the entire apparatus. Play.

  In addition to the effect of the invention according to claim 2, the invention according to claim 3 has an effect that both electrostatic atomization and microplasma discharge can be reliably realized by one power supply circuit.

  In addition to the effect of the invention according to claim 2, the invention according to claim 4 has an effect that both electrostatic atomization and microplasma discharge can be reliably realized by one power supply circuit.

  In addition to the effect of the invention according to any one of claims 1 to 4, the invention according to claim 5 increases the concentration of the electric field at the tip of the liquid transport unit, and reaches the tip of the liquid transport unit. There is an effect that electrostatic atomization of the conveyed liquid can be stabilized.

  In addition to the effect of the invention according to any one of claims 1 to 5, the invention according to claim 6 increases the concentration of the electric field at the tip of the liquid transport unit, and reaches the tip of the liquid transport unit. There is an effect that electrostatic atomization of the conveyed liquid can be stabilized.

  In addition to the effects of the invention according to any one of claims 1 to 6, the invention according to claim 7 facilitates various maintenance such as replenishment of liquid in the liquid reservoir, washing, and removal of attached scale. The effect that it can be performed is produced.

  In addition to the effect of the invention according to any one of claims 1 to 7, the invention according to claim 8 can improve usability by eliminating the need for liquid replenishment, and can prevent the adhesion of scale. There is an effect that it can be prevented.

  In addition to the effect of the invention according to claim 8, the invention according to claim 9 has an effect that it is possible to quickly supply a liquid made of condensed water with a simple structure.

  In addition to the effect of the invention according to any one of claims 1 to 9, the invention according to claim 10 can generate a liquid in which an active ingredient having a required concentration is dissolved in a liquid reservoir in a short time. There is an effect.

  In addition to the effect of the invention according to any one of claims 1 to 10, the invention according to claim 11 has an effect that the mist can be released vigorously into the external space by being put on a sufficient amount of air. Play.

  In addition to the effect of the invention according to any one of claims 1 to 11, the invention according to claim 12 discharges warm air using air blown from a blower, and by the heat of the hot air. There exists an effect that it can control that mist evaporates.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. In addition, the downstream side used in the text is based on the direction of the air generated by the blower 5 described later.

  FIG. 1 shows a spray device of a first example in the embodiment of the present invention. In the spray device of this example, a suction port 2 and a discharge port 3 are opened on the outer surface of a main body case 1 that forms an outer shell of the entire device, and an air passage 4 that communicates the suction port 2 and the discharge port 3 is provided in the main body case 1. It is formed through. A blower 5 is arranged in the blower path 4, and a spray unit 50 containing the discharge unit 6 is arranged on the downstream side of the blower 5. The blower 5 includes a blower fan and a motor, and introduces air outside the main body case 1 from the suction port 2 into the blower passage 4 by rotating the blower fan.

  The spray unit 50 includes a discharge unit 6 that generates a microplasma discharge in a spray unit case 51 that has a cylindrical shape, a liquid storage unit 13 that is located downstream of the discharge unit 6, and a liquid storage unit 13. And an atomizing means 60 for atomizing and discharging the liquid L. Hereinafter, each component of the spray unit 50 will be described in detail.

  The discharge unit 6 is of a hollow cathode type as shown in the figure, and is closely arranged on the upstream side of the insulating spacer 7 with the insulating spacer 7 having a minute through hole 10 into which the air blown from the blower 5 is introduced. The upstream electrode 8a and the downstream electrode 8b arranged in close contact with the downstream side of the insulating spacer 7. The insulating spacer 7 has a plate shape made of a non-conductor such as ceramics, and has a structure in which the insulating spacer 7 is sandwiched between an upstream electrode 8a and a downstream electrode 8b made of a conductor such as metal.

  The upstream electrode 8a and the downstream electrode 8b are electrically connected via a high voltage application unit 9, and a high voltage for microplasma discharge is applied between the electrodes 8a and 8b. Both electrodes 8a and 8b are provided with through-holes 61a and 61b penetrating in the thickness direction, respectively, and the through-hole 10 of the insulating spacer 7 and the through-holes 61a and 61b of both electrodes 8a and 8b communicate with each other. A through-hole penetrating the spacer 7 and both electrodes 8a and 8b in a straight line in the thickness direction is formed. The through-holes 10, 61a, 61b may have a diameter of about several tens of μm to several mm, and most preferably about several hundreds of μm.

  The liquid reservoir 13 is a tank arranged in close contact with the downstream side of the discharge unit 6, and its internal space communicates with the through hole 10 of the insulating spacer 7 through the through hole 61 b of the downstream electrode 8 b. ing. In the liquid reservoir 13, water that is the liquid L is accommodated. A pipe-like liquid supply path 11 for replenishing the liquid L into the liquid reservoir 13 and the liquid L in the liquid reservoir 13 are sequentially supplied to the liquid reservoir 13 for electrostatic atomization. A pipe-shaped liquid transport unit 12 is provided in a protruding manner.

  The liquid supply path 11 extends laterally from the liquid reservoir 13 and penetrates the spray unit case 51 and the main body case 1 and opens the liquid supply port at the tip to the outside. . A sealing lid 62 is detachably fitted to the liquid supply port.

  The liquid transport section 12 is provided so as to project from the liquid reservoir section 13 toward the downstream end opening side of the spray unit case 51, and transports the liquid L in the liquid reservoir section 13 to the front end opening 12a by capillary action. As described above, a structure in which capillaries having a diameter of 1 mm or less are communicated, or a porous body using ceramics or metal particles, or a fibrous material such as felt is filled inside. Forming. The outer peripheral portion of the liquid transport unit 12 excluding the tip opening 12a is covered with resin or the like. Alternatively, the liquid L may be transported to the tip opening 12 a of the liquid transport unit 12 by the pressure of the air sent into the liquid reservoir 13 through the through hole 10 of the insulating spacer 7.

  The atomizing means 60 is an electrostatic atomizing unit 70 that atomizes and discharges the liquid L in the liquid reservoir 13 by an electrostatic atomization phenomenon, and includes the liquid conveying unit 12 and the liquid conveying unit 12. An application electrode 63 for applying a voltage to the liquid L transported to the front end side, and a ring-shaped counter electrode 64 disposed at a position facing the front end of the liquid transport unit 12 are configured. . The counter electrode 64 is fixed to the opening edge of the downstream end of the spray unit case 51. A high voltage for electrostatic atomization is applied between the application electrode 63 and the counter electrode 64 by a high voltage application unit 65 different from the high voltage application unit 9.

  By the way, the spray unit case 51 that forms the outline of the spray unit 50 also serves as a partition wall that branches the air blowing path 4 formed in the main body case 1 into two branch air paths 14 and 15. One branch air passage 14 here is an air passage for introducing air into the through-hole 10 of the insulating spacer 7, and is inside the spray unit case 51 partitioned into an upstream side and a downstream side through the insulating spacer 7. Of the space, it is formed by the internal space on the upstream side. The other branch air passage 15 is an air passage that joins with the mist that has been atomized and discharged by the electrostatic atomizer 70 and that discharges the mist to the outside. The air passage 4 is formed in a portion of the air passage downstream of the branch portion except for the inside of the spray unit case 51. In the illustrated example, the branch air passage 15 is configured to be discharged to the outside from the discharge port 3 after joining the mist discharged from the electrostatic atomizer 70, but is discharged to the outside from the branch air passage 15. The structure may be such that the air blows with the mist for the first time in the external space.

  The branch air passage 14 may be provided so as to flow at least around the insulating spacer 7 and the upstream electrode 8a. In this case, it is possible to cool the insulating spacer 7 and the upstream electrode 8a that become high temperature during discharge. Moreover, you may make it the structure which branches the ventilation path 4 into three or more branch air paths, and in this case, if at least one of the branch air paths is made into the air path for sending out the ventilation which joins mist, Good.

  In the spray apparatus of this example having the above-described configuration, when an operation start command is input to a control circuit unit (not shown) by appropriate operation input means, the control circuit unit that has received the command drives the blower 5 to blow the air flow path. Introduce outside air into 4. In addition, the control circuit unit applies a high-voltage AC voltage or a pulse voltage between the electrodes 8a and 8b of the discharge unit 6 by the high-voltage application unit 9, and the high-voltage application unit 65 causes the electrostatic atomization unit 70 to A high DC voltage is applied between the application electrode 63 and the counter electrode 64.

  In the discharge unit 6, creeping discharge is started in the through hole 10 of the discharge unit 6 by applying a high-voltage AC voltage or pulse voltage, and a micrometer-sized microscopic space is formed in the micro space in the through hole 10. Microplasma, which is a good plasma, is generated at a high density. The microplasma discharge generated in the through-hole 10 generates active components such as superoxide radicals, hydroxy radicals, nitrogen oxides, and nitrate ions at a very high density.

  Here, the air sent toward the discharge part 6 through the branch air passage 14 is introduced into the through hole 10 of the insulating spacer 7, and the effective component generated in the through hole 10 at a high density is mixed with the air. Thus, the active ingredient is fed out downstream, and the active ingredient is fed directly into the liquid reservoir 13 communicating with the downstream end opening of the through hole 10.

  Then, a large amount of the active ingredient generated in the immediately preceding through hole 10 is rapidly introduced into the water, which is the liquid L stored in the liquid reservoir 13, so that the liquid reservoir 13 can be dissolved therein. Produces high concentrations of hydrogen peroxide and nitric acid. In other words, hydrogen peroxide is generated by dissolving superoxide radicals and hydroxy radicals as active ingredients in water, and nitric acid is generated by dissolving nitrogen oxides and nitrate ions, which are also active ingredients, in water. Therefore, the water in the liquid reservoir 13 is reformed to one in which hydrogen peroxide or nitric acid is dissolved. Further, ozone generated by the discharge is also dissolved in the water in the liquid reservoir 13.

  In addition, the water in the liquid reservoir 13 removes the heat of the adjacent downstream electrode 8b, so that the heat removal of the downstream electrode 8b, which becomes a high temperature during operation, is also performed. Thereby, the load given to the downstream electrode 8b is reduced.

  In addition, since the through hole 10 of the discharge part 6 is provided with a very small diameter of about several hundred μm, the water filled in the liquid reservoir 13 penetrates into the through hole 10 while ensuring the air flow. This is prevented by surface tension. Therefore, the discharge portion does not get wet and the discharge state does not change, and the active ingredient is stably generated.

  On the other hand, in the electrostatic atomization unit 70, by applying a high direct current voltage to the modified liquid L in the liquid reservoir 13, the liquid L conveyed to the tip opening 12 a of the liquid conveyance unit 12 is applied. A large amount of nano ion mist, which is a mist having a small particle size of nanometer size, is generated while the charges are concentrated and Rayleigh splitting is repeated. The nano ion mist passes through the central hole of the counter electrode 64 and merges into the branch air passage 15 and is also discharged from the discharge port 3 along with the air blown in the branch air passage 15.

  The hydrogen peroxide contained in the nanoion mist discharged to the outside exerts effects such as deodorization and sterilization, and the nitrate ions in the nitric acid contained in the nanoion mist make the hair weakly acidic and provide water retention. It is thought that the quality improvement effect is demonstrated. Therefore, by adjusting the discharge conditions etc. as appropriate to adjust the production balance of hydrogen peroxide and nitric acid, whether the effect of deodorization, sterilization, etc. is exerted predominately, or the effect of improving hair quality is exerted predominately Can be selected. The former case is preferable when used in, for example, an air cleaner, and the latter case is preferable when used in, for example, a hair dryer.

  FIG. 2 shows a modification in which the spray device of this example is used as a hot air discharge device such as a hair dryer. In this case, the air passage 4 for sending the air blown from the blower 5 to the downstream side is branched into three branch air passages 14, 15, 16 and one of them is used for discharging hot air. That is, one branch air passage 14 is an air passage that introduces air into the through-hole 10 of the insulating spacer 7, and the other branch air passage 15 is an air passage that discharges the nano ion mist on the wind to the outside. Furthermore, the other branch air passage 16 is an air passage that incorporates a heater 66 and discharges warm air heated by the heater 66 to the outside. As a branch location, the branch air passage 15 and the branch air passage 16 are branched downstream of the blower 5, and the branch air passage 14 is branched from the branch air passage 15 further downstream of the branch location. . By branching in this way, the nano ion mist is prevented from disappearing due to heat. Other branch air passages may be further provided, and if a heater 66 is incorporated in at least one of the plurality of branch air passages, it can be suitably used as a hot air discharge device.

  Reference numeral 80 in the drawing is a grip portion extending from the main body case 1. Moreover, the code | symbol 81 in a figure is a control circuit part, and although it installed in the location which does not become obstructive of the ventilation from the air blower 5, in order to cool a circuit, it branched from the air flow path 4 You may install in a flow path.

  In FIG. 3, the modification at the time of using the spray apparatus of this example as air conditioners, such as an air cleaner, is shown. In this case, a filter 85 is disposed upstream of the spray unit 50 in the air blowing path 4, and the blown air that has passed through the filter 85 and is purified is sent to the spray unit 50. If a large amount of nano ion mist released from the spray unit 50 adheres to the main body case 1, the main body case 1 may be charged to inhibit the generation of mist. Therefore, the spray unit 50 should be installed in the vicinity of the discharge port 3. Is preferred.

  In both cases of FIG. 2 and FIG. 3, the nano ion mist in which a large amount of the active ingredient generated by the microplasma discharge is dissolved is discharged to the outside as having a very small particle size and charged. There is an advantage that it is easily transported to a distant place without causing any troubles, and since it is charged, it is easy to adhere to a living body such as hair and exert its effect. In addition, since the discharge unit 6, the liquid reservoir 13, and the electrostatic atomization unit 70 can be integrally formed in the spray unit 50 in a compact manner, the overall size of the apparatus is not increased.

  Next, the spraying apparatus of the 2nd example in embodiment of this invention is demonstrated. Since the basic configuration of this example is the same as that of the first example, detailed description of the configuration that matches the first example is omitted, and only the characteristic configuration that is different from the first example is described below. It will be described in detail.

  FIG. 4 shows only the spray unit 50 of this example. The spray unit 50 of the present example has a structure in which the downstream electrode 8b for microplasma discharge of the discharge unit 6 is also used as the application electrode 63 used for high voltage application for electrostatic atomization in the electrostatic atomization unit 70. is there. And the high voltage application part 9 which connects the upstream electrode 8a and the downstream electrode 8b of the discharge part 6 applies the high voltage for electrostatic atomization with respect to the liquid L in the liquid reservoir part 3. The structure is also used as the high voltage application unit 65. The downstream electrode 8b is installed in the liquid reservoir 13 or in the vicinity thereof.

  Here, from the high voltage application unit 9 that also serves as the high voltage application unit 65, is a high voltage obtained by superimposing an AC component of several kV on a DC component of minus several kV applied to the downstream electrode 8b? 5), or a high voltage obtained by superimposing a minus several kV pulse component on a minus several kV DC component is applied (see FIG. 6). The frequency of the AC component and the pulse component is preferably about several hundred Hz to several thousand Hz. On the other hand, a voltage sufficiently lower than the downstream electrode 8b such as the ground voltage is applied to the upstream electrode 8a. As a result, a microplasma discharge is generated between the upstream electrode 8a and the downstream electrode 8b, and the voltage applied to the downstream electrode 8b causes the liquid transport unit 12 to pass through the liquid L in the liquid reservoir 13. A high voltage can also be applied to the tip side to generate electrostatic atomization.

  By the way, a DC voltage is preferable as an applied voltage for electrostatic atomization, and an AC voltage or a pulse voltage is preferable as an applied voltage for microplasma discharge in order to flow a large current instantaneously. By applying a high voltage in which an alternating current component or pulse component is superimposed on a direct current component to the downstream electrode 8b, electrostatic atomization is performed as a whole, and effective by the maximum high voltage formed by superimposing the alternating current component or pulse component. Ingredients can be generated. That is, both electrostatic atomization and microplasma discharge are reliably realized by one power supply circuit.

  Moreover, in the electrostatic atomization part 70 of this example, the peripheral side surface of the liquid conveyance part 12 which protrudes from the liquid reservoir part 3 is formed in a tapered shape so that the diameter becomes smaller toward the tip side. It has a conical shape. Therefore, the electric field is effectively concentrated on the tip of the smallest diameter of the liquid transport unit 12, and electrostatic atomization can be stably generated under strong electric field strength. The liquid conveyance part 12 should just form the peripheral side surface of the front-end | tip part in the taper shape.

  Note that the electrostatic atomizer 70 of this example does not include the counter electrode 64. When the counter electrode 64 is not provided, it is necessary to apply a relatively high voltage for electrostatic atomization as compared with the case where the counter electrode 64 is provided, and the surroundings are charged with the same polarity, which easily inhibits the generation of nanoion mist. However, there is an advantage that the nano ion mist itself can be generated without any problem, and compactness and cost reduction are realized.

  Next, the spraying apparatus of the 3rd example in the embodiment of the present invention is explained. Since the basic configuration of this example is the same as that of the second example described above, detailed description of the configuration that matches the second example is omitted, and only the characteristic configuration that is different from the second example is described below. It will be described in detail.

  FIG. 7 shows only the spray unit 50 of this example. The spray unit case 51 of this example is provided with an opening / closing lid 52, and by opening the opening / closing lid 52, a detachable block in which the discharge unit 6, the liquid reservoir unit 13, and the electrostatic atomization unit 70 are integrally configured. 90 is removable from the spray unit case 51. The spray unit case 51 is provided with a terminal 91 that is electrically connected to the upstream electrode 8a and a terminal 92 that is electrically connected to the downstream electrode 8b when the detachable block 90 is mounted in the spray unit case 51. 91 and 92 are connected to the high voltage application unit 9. The detachable block 90 is provided so as to be positioned in the spray unit case 51 by these terminals 91 and 92 and a guide structure (not shown).

  In the illustrated example, the discharge unit 6, the liquid reservoir 13, and the electrostatic atomizer 70 are integrally attached and detached, but at least the liquid reservoir 13 may be detachable. That is, the structure in which only the liquid reservoir 13 is detachable, the structure in which the liquid reservoir 13 and the discharge unit 6 are detachable integrally, or the liquid reservoir 13 and the electrostatic atomizer 70 are detachable integrally. A certain structure may be used.

  Moreover, the structure which can be removed with the spraying unit 50 from the main body case 1 of the spraying apparatus may be sufficient. Regardless of the structure, various maintenance such as replenishing the liquid L to the liquid reservoir 13 taken out to the outside and removing the scale attached to the liquid reservoir 13 or the liquid transporter 12 becomes possible.

  Next, the spraying apparatus of the 4th example in the embodiment of the present invention is explained. Since the basic configuration of this example is the same as that of the second example described above, detailed description of the configuration that matches the second example is omitted, and only the characteristic configuration that is different from the second example is described below. It will be described in detail.

  FIG. 8 shows only the spray unit 50 of this example. An elongated pipe-shaped liquid supply path 11 is extended from the liquid reservoir 13 of this example, and a second reservoir 95 installed outside the spray unit case 51 is connected to the liquid supply path 11 in communication. Yes. The second liquid reservoir 95 is a water tank, and a cooling part 96a of the heat exchanger 96 is connected to the bottom surface thereof. When the heat exchanger 96 is driven, at least the bottom and side surfaces of the second liquid reservoir 95 are Cooled, and condensed water is generated and stored in the second liquid reservoir 95.

  The heat exchanger 96 is a Peltier unit, and is formed by sandwiching a plurality of Peltier elements between a cooling part 96a made of a cooling plate and a heat radiating part 96b made of a heat radiating plate. That is, in the spray unit 50 of this example, moisture in the air is collected by the liquid supply path 11, the second liquid reservoir 95 and the heat exchanger 96 and is sequentially supplied into the liquid reservoir 13. A liquid supply means is configured.

  Note that the heat exchanger 96 may be of a heat exchange type using pressure of a pump or the like. Further, the liquid supply means may be constituted by other means such as collecting moisture in the air during non-operation by using a hygroscopic agent such as zeolite or silica gel and heating it during use.

  Therefore, for the user, the liquid L is supplied in an appropriate amount from the advantage that the trouble of replenishing the liquid becomes unnecessary and the usability is improved and the capillary phenomenon of the liquid supply path 11 from the second liquid reservoir 95 to the liquid reservoir 13. By providing as described above, there is an advantage that the liquid L in which the necessary concentration of the active ingredient is dissolved can be generated in the liquid reservoir 13 in a short time.

  In this example, since the counter electrode 64 is provided, electrostatic atomization can be caused by applying a relatively low voltage, and the surroundings can be prevented from being charged with the same polarity. Therefore, the nano ion mist is efficiently generated.

  Next, the spraying device of the 5th example in the embodiment of the present invention is explained. Since the basic configuration of this example is the same as that of the fourth example described above, detailed description of the configuration that matches the fourth example is omitted, and only the characteristic configuration that is different from the fourth example is described below. It will be described in detail.

  FIG. 9 shows only the spray unit 50 of this example. In this example, an elongated pipe-shaped liquid supply passage 11 for supplying the liquid L from the second liquid reservoir 95 to the liquid reservoir 13 and an elongated pipe-shaped liquid transporting part 12 are directly formed in an L shape. It is connected. The L-shaped connecting portion or the vicinity of the connecting portion is connected in communication with the through hole 10 of the discharge portion 6. That is, in this example, a part of the liquid supply path 11 and the liquid transport unit 12 is used as the liquid reservoir 13.

  Therefore, if the liquid L is provided so that appropriate amounts are sequentially supplied from the second liquid reservoir 95 to the liquid supply path 11 and the liquid transport unit 12, the liquid L in which the active ingredient having the necessary concentration is dissolved is very short. It is produced | generated in time, can be supplied to the front-end | tip of the liquid conveyance part 12, can be discharged | emitted rapidly by electrostatic atomization.

It is explanatory drawing which shows roughly the whole structure of the spraying apparatus of the 1st example in embodiment of this invention. It is explanatory drawing which shows the modification at the time of using the spray apparatus same as the above as a hair dryer. It is explanatory drawing which shows the modification at the time of using a spraying apparatus same as the above as an air cleaner. It is explanatory drawing which shows schematically the spraying unit of the spraying apparatus of the 2nd example in embodiment of this invention. It is explanatory drawing which shows the applied voltage in the spraying apparatus same as the above. It is explanatory drawing which shows the other applied voltage in the spraying apparatus same as the above. It is explanatory drawing which shows roughly the spraying unit of the spraying apparatus of the 3rd example in embodiment of this invention. It is explanatory drawing which shows roughly the spraying unit of the spraying apparatus of the 4th example in embodiment of this invention. It is explanatory drawing which shows roughly the spraying unit of the spraying apparatus of the 5th example in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 5 Blower 6 Discharge part 7 Insulating spacer 8a Upstream electrode 8b Downstream electrode 9 High voltage application part 10 Through-hole 11 Liquid supply path 12 Liquid conveyance part 13 Liquid reservoir part 14 Branch air path 15 Branch air path 16 Branch air path 60 Atomizing means 63 Application electrode 64 Counter electrode 66 Heater 70 Electrostatic atomization part 95 Second liquid reservoir part 96 Heat exchanger L liquid

Claims (12)

  A blower for generating air blowing, a discharge part located on the downstream side of the blower, a liquid reservoir part located on the downstream side of the discharge part, and an atomizing means for atomizing and discharging the liquid in the liquid reservoir part A spraying device comprising: an insulating spacer having a minute through-hole into which air blown from a blower is introduced; an upstream electrode disposed upstream of the insulating spacer; and a downstream side of the insulating spacer The liquid reservoir portion communicates with the through hole of the insulating spacer of the discharge portion, and the atomizing means supplies the liquid in the liquid reservoir portion to a high voltage. An atomizing device that is an electrostatic atomizing unit that electrostatically atomizes and discharges by application.   2. The spray device according to claim 1, wherein an application electrode used for applying a high voltage in the electrostatic atomization unit also serves as a downstream electrode of the discharge unit.   The spray device according to claim 2, further comprising a high voltage application unit that applies a high voltage obtained by superimposing an alternating current component to a direct current component to the downstream electrode.   The spraying device according to claim 2, further comprising a high voltage application unit that applies a high voltage obtained by superimposing a pulse component on a direct current component to a downstream electrode.   The electrostatic atomization unit is characterized in that a liquid transport unit protrudes from the liquid reservoir, and the peripheral side surface of at least the front end of the liquid transport unit is formed in a tapered shape having a smaller diameter toward the front end side. The spraying device according to any one of claims 1 to 4.   2. The electrostatic atomizing section includes a liquid transport section projecting from a liquid reservoir section, and a counter electrode disposed at a position facing the tip of the liquid transport section. The spraying device according to any one of 5.   The spray device according to any one of claims 1 to 6, wherein at least the liquid reservoir is detachably provided among the discharge unit, the liquid reservoir, and the electrostatic atomizer.   The spray apparatus according to claim 1, further comprising a liquid supply unit that collects moisture in the air and supplies the moisture in the liquid reservoir.   9. The spray apparatus according to claim 8, wherein the liquid supply means comprises a heat exchanger that generates condensed water on the cooling side.   10. A second liquid reservoir part different from the liquid reservoir part, and a liquid supply path for supplying a liquid from the second liquid reservoir part to the liquid reservoir part. The spraying device according to item.   The air passage that sends the air from the blower to the downstream side is branched into a plurality of branch air passages, and one of the plurality of branch air passages is an air passage that introduces air into the through hole of the insulating spacer, and the other The at least one of the branched air passages is an air passage that sends out air that merges with the mist that has been atomized and discharged by the electrostatic atomization unit. The spraying device as described.   The air passage that sends the air from the blower to the downstream side is branched into a plurality of branch air passages, and one of the plurality of branch air passages is an air passage that introduces air into the through hole of the insulating spacer, and the other 12. The air passage according to claim 1, wherein at least one of the branch air passages has a heater and discharges warm air heated by the heater to the outside. Spraying equipment.

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