WO2004076077A1 - Dispositif d'atomisation de liquides - Google Patents

Dispositif d'atomisation de liquides Download PDF

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Publication number
WO2004076077A1
WO2004076077A1 PCT/JP2003/002172 JP0302172W WO2004076077A1 WO 2004076077 A1 WO2004076077 A1 WO 2004076077A1 JP 0302172 W JP0302172 W JP 0302172W WO 2004076077 A1 WO2004076077 A1 WO 2004076077A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
diaphragm
unit
piezoelectric element
mist
Prior art date
Application number
PCT/JP2003/002172
Other languages
English (en)
Japanese (ja)
Inventor
Tooru Tanaka
Kenzi Nishimura
Tomoaki Yamasaki
Makiko Konishi
Original Assignee
Konishi Seiko Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konishi Seiko Co., Ltd. filed Critical Konishi Seiko Co., Ltd.
Priority to AU2003211742A priority Critical patent/AU2003211742A1/en
Priority to PCT/JP2003/002172 priority patent/WO2004076077A1/fr
Publication of WO2004076077A1 publication Critical patent/WO2004076077A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers

Definitions

  • the present invention relates to a liquid atomizing device that applies ultrasonic vibration to a liquid to atomize the liquid.
  • nebulizers have been provided for barber and beauty, which atomize water and spray it onto the skin to prevent the skin from drying out.
  • a method of spraying from inside a high-pressure nozzle through a nozzle a method of spraying liquid from a nozzle by applying pressure to a liquid using a pump, a method of spraying by heating liquid to generate steam, and a bench lily by steam flow
  • a system in which mist is generated by producing an effect, and the mixture is sprayed with water vapor and an ultrasonic system in which ultrasonic waves are applied to a liquid to cause a caption phenomenon to atomize the liquid.
  • the ultrasonic method uses a liquid retaining material such as a sponge to supply and spray liquid, the method of atomizing liquid through small holes of several tens of xm and spraying, and the occurrence of cavitation phenomena.
  • an atomization method in which the distance between the liquid surface and the vibration surface can be set to an appropriate distance, and a method in which ultrasonic waves are concentrated near the liquid surface to atomize are known.
  • the frequency used in the fogging by the ultrasonic method is a frequency of about 100 KHz to 200 KHz, and the fog generated by this is fog particles (hereinafter referred to as fog particles). ) And was not suitable for humidifying the skin, especially the face. That is, when the fog particles are applied to the skin, the speed at which the fog particles adhere to the skin (the amount of adhesion per unit time) is faster than the speed at which water adhering to the skin evaporates because the fog particles are relatively large. However, there was a problem that water adhered to the skin flowed off as water droplets.
  • the present invention is a small and lightweight liquid atomizer that has small mist particles and, when applied to the skin, balances the rate at which the liquid adheres to the skin and the rate at which the adhered liquid evaporates. It is intended to provide a device.
  • the object of the present invention is achieved by the following means.
  • the first liquid atomizing device includes: a mist generating unit equipped with a piezoelectric element and a diaphragm having a convex portion or a concave portion on a surface; a liquid containing portion for containing a liquid; A liquid dropping unit for dropping the liquid on the plate at predetermined time intervals, wherein the convex portion or the concave portion allows the dropped liquid to stay on the vibration plate, and the piezoelectric element vibrates by being supplied with a high-frequency voltage.
  • the vibration plate vibrates due to the vibration of the piezoelectric element, and foggs the liquid staying on the vibration plate.
  • the opening of the liquid storage unit is disposed in contact with at least a part of an outer periphery of the mist generation unit. It is characterized by having.
  • the liquid dropping unit includes a nozzle, a temporary storage unit that temporarily stores a part of the liquid, A pumping unit that pumps the liquid stored in the liquid storage unit to the temporary storage unit and drops the liquid stored in the temporary storage unit from the nozzle onto the mist generation unit. It is characterized by.
  • the temporary storage unit is formed of a deformable plate whose wall part is deformed by receiving an external force;
  • the pumping unit deforms the deformable plate at the predetermined time interval so that the volume of the temporary storage unit changes.
  • a fifth liquid atomizing device is the fourth liquid atomizing device according to the fourth liquid atomizing device, wherein the deformable plate is a diaphragm, and the pumping unit is provided with a shaft partially projecting outside. And a solenoid element that is supplied with a direct current and changes the length of the portion protruding to the outside.
  • the pumping unit has a length of the portion protruding to the outside. The diaphragm is deformed by the change.
  • a sixth liquid atomizing device includes a mist generating unit equipped with a piezoelectric element and a diaphragm having a convex portion on a surface; a liquid storing unit for storing a liquid; A piezoelectric element having a disk shape with a diameter of about 20 mm and a thickness of about 2 mm, wherein the diaphragm has a diameter of about 2 mm.
  • the convex portion is arranged near the center on one side surface of the diaphragm, the maximum thickness of the convex portion is about 6 mm, and the thickness of a portion other than the convex portion
  • the circular surface of the vibrating plate having no convex portion and the circular surface of the piezoelectric element are bonded so as to overlap each other, and the convex portion is dripped.
  • the liquid is retained on the vibration plate, the piezoelectric element vibrates when supplied with a high-frequency voltage of about 1 MHz, and the vibration plate vibrates due to the vibration of the piezoelectric element. It is characterized in that the liquid staying above is atomized.
  • a seventh liquid atomizing device in the first liquid atomizing device, wherein the blowing unit and the atomized particles generated by atomizing the liquid are discharged by the wind generated by the blowing unit. And a mist discharge portion installed at an opening of the liquid storage portion so as to cover the mist generation portion, wherein the mist discharge portion is detachable.
  • an eighth liquid atomizer according to the present invention in the seventh liquid atomizer, further comprises a negative ion generator for generating a negative ion, wherein the negative ion is generated by wind generated by the blower. Is added to the fog particles.
  • a ninth liquid atomizer in the first liquid atomizer, further comprises a rechargeable battery for supplying the high-frequency voltage, wherein a lower part of the exterior is one-handed by a person. It is characterized in that it has a columnar shape large enough to be easily gripped.
  • FIG. 1 is a side view showing the appearance of a liquid atomizing device according to the present invention.
  • FIG. 2 is a partial cross-sectional view of the liquid atomizing device showing an atomizing section and a negative ion generating section housed in a housing.
  • FIG. 3 is a block diagram showing a schematic configuration of the control unit.
  • FIG. 4 is a flowchart showing the atomization and negative ion generation operation of the liquid atomization device according to the present invention.
  • FIG. 5 is a perspective view showing a schematic structure of a mist generating section.
  • FIG. 6 is a perspective view showing a mist generating section having a concave portion on the surface.
  • FIG. 7 is a cross-sectional view showing a shape of a mist generating section according to the embodiment of the present invention.
  • FIG. 1 is a side view showing the appearance of the liquid atomizing device according to the present invention.
  • the liquid atomizing device 1 includes a nozzle 2 for discharging atomized particles, a tank 3 for storing the liquid L to be atomized, an atomizing section, a negative ion generating section, a charging section, and a control section for controlling these. It has a housing 4 housed therein, a fan 5, a mode switching switch 6, and a power switching switch 7. The liquid atomizing device 1 is operated or charged by operating the power supply switch 7. In the operating state, the liquid atomizing device 1 is housed in the tank 3 according to the mode set by the mode switching switch 6 (the atomizing mode or the atomizing and negative ion generating modes) as described later. Atomization of liquid L, or atomization and generation of negative ions. The generated mist particles and minus ions are discharged from the discharge port 8 by the flow of air sucked from the outside by the rotating fan 5.
  • FIG. 2 is a partial cross-sectional view of the liquid atomizing device 1 showing the atomizing section and the negative ion generating section housed in the housing 4.
  • the atomization section consists of a mist generation section 20, a suction pipe 21, a pump casing 22, a diaphragm 23, a panel 24, a solenoid 25, a discharge pipe 26, and a discharge pipe.
  • the liquid nozzle 27 is provided below the mist generating section 20 is a hollow space, and the tank 3 has a shape in which the injected liquid L surrounds this space, and its opening is disposed in contact with the periphery of the mist generating section.
  • Both ends of the suction pipe 21 are connected to the lower part of the tank 3 and the lower part of the pump casing 22, respectively, and both ends of the discharge pipe 26 are connected to the upper part of the pump casing 22 and the discharge nozzle 27, respectively.
  • a diaphragm 2 Inside the pump casing 2 2 is a diaphragm 2 An outer peripheral portion of the diaphragm 23 is disposed in close contact with an inner wall near an opening of the pump casing 22, and a valve 29 is disposed at a lower portion to which the suction pipe 21 is connected.
  • the central part of the surface of the diaphragm 23 is fixed to the tip of the shaft 28.
  • the panel 24 is a helical spring and is disposed around the shaft 28 in a compressed state sandwiched between the solenoid / id 25 and the diaphragm 23.
  • the negative ion generating section is configured to include a negative ion generating substrate 30 on which an electric circuit required for generating negative ions, which are negatively charged fine particles, and a negative ion generating terminal 31 are provided.
  • the charging section is composed of a rechargeable battery and a charging circuit (both not shown).
  • the charging circuit is supplied with power from the outside, and is supplied with a predetermined DC voltage and DC current by, for example, an AC adapter to charge the device. Charge the battery. Since rechargeable batteries and charging circuits suitable for the rechargeable batteries are known, description thereof will be omitted here.
  • FIG. 3 is a block diagram showing a schematic configuration of the control unit.
  • the control unit (broken line) is a central processing unit (hereinafter referred to as CPU) 40 that controls the whole, a mist generation control unit 41 that controls the mist generation unit 20, a thermistor 4 6 Temperature detector 4 to acquire temperature information using 4, 4 Solenoid controller 4 to control solenoid 25 5 Negative ion generating terminal 3 Negative ion generating substrate 3 for supplying power to generate negative ions to 1 3 0, a charging control unit 44 for controlling the charging unit 45, and a memory 47 for recording a control program and necessary data.
  • the operation mode is switched by the mode switching switch 6, and the normal operation or the charging operation is switched by the power switching switch 7.
  • FIG. 4 is a flowchart showing the operation of the liquid atomization device 1 according to the present invention in the atomization mode or the atomization and minus ion generation mode (hereinafter, referred to as the mixing mode).
  • the liquid atomizing apparatus 1 starts operating when the power supply switch 7 is turned on and the mode switch 6 is set to the atomization mode or the mixing mode.
  • data necessary for the CPU 40 to control each unit is stored in the memory 47 in advance.
  • step S1 power supply to the fan 5 is started, and the fan starts rotating.
  • the CPU 40 reads out data necessary for performing the processing in the subsequent steps from the memory 47 and performs initial settings.
  • step S2 CPU 40 controls mist generation control section 41 to apply a predetermined high-frequency voltage to mist generation section 20.
  • FIG. 5 is a perspective view showing the structure of the mist generating section 20.
  • the mist generating section 20 is composed of a diaphragm 32 having a convex portion at the center and a flat piezoelectric element 33.
  • the shape of the piezoelectric element 33 changes at the corresponding frequency, That is, the piezoelectric element 33 vibrates.
  • the frequency of the voltage applied to the piezoelectric element 33 is a frequency corresponding to the resonance frequency of the diaphragm 32 and the piezoelectric element 33, the diaphragm 31 is most efficiently continuously vibrated. Can be done.
  • step S3 the CPU 40 controls the solenoid control unit 43 to start a repetitive operation of supplying or stopping a predetermined DC current to the solenoid 25 at a predetermined time interval.
  • the solenoid 25 draws the shaft 28 into the solenoid 25 by electromagnetic force while receiving the current supply.
  • the central portion of the diaphragm 23 fixed to the tip of the shaft 28 is pulled out. It protrudes in the direction of the solenoid 25, and the space inside the pump casing 22 is expanded to expand the volume.
  • the liquid L in the tank 3 corresponding to flows into the pump casing 22 via the suction pipe 21.
  • the liquid L is dropped from the discharge nozzle 27 at predetermined time intervals in the vicinity of the center of the mist generating section 20, and the dropped liquid U and the liquid M stay around the central convex section of the mist generating section 20. Then, it is atomized by the high frequency vibration of the mist generating section 20. The mist generated by this is discharged from the outlet 8 of the nozzle 2 by the flow of air generated by the rotation of the fan 5.
  • the amount of liquid L dropped from the discharge nozzle 27 exceeds the amount that can be retained around the convex portion at the center of the mist generating portion 20, the liquid L flows into the tank 3 from the outer peripheral portion of the mist generating portion 20.
  • step S4 the CPU 40 determines whether or not the mode switching switch 6 is set to the mixed mode for generating negative ions. If it is determined that the mixed mode is set, the CPU 40 proceeds to step S5. Then, if it is determined that the mixing mode is not set, the process proceeds to step S6.
  • step S5 the CPU 40 controls the negative ion generating substrate 30 to supply a predetermined high voltage to the negative ion generating terminal 31 and causes the negative ion generating terminal 31 to emit electrons, Generates negative ions (electron emission method).
  • the generated negative ions are mixed with the mist generated by the above-described atomization by the flow of air generated by the rotation of the fan 5, and ionize the mist, that is, negatively charge.
  • the ionized mist is discharged from the outlet 8 of the nozzle 2 by the flow of air generated by the rotation of the fan 5.
  • other methods such as a corona discharge method may be used to generate negative ions. Since an electric circuit for generating electron emission and corona discharge is known, description thereof is omitted here.
  • step S6 the CPU 40 obtains a signal corresponding to the electric signal from the sensor 46 installed in contact with the surface of the piezoelectric element 33 from the temperature detecting section 42, and It is determined whether or not the temperature exceeds a preset upper limit. If the CPU 40 determines that the temperature of the piezoelectric element 33 exceeds the upper limit value, the process proceeds to step S8, and the mist generation section 41, the solenoid control section 43, and the negative ion generation board 30 are transmitted to the CPU 40. The power supply is stopped, and the above-described series of processing ends.
  • step S7 determines whether the normal operation has been performed for a predetermined time, and the predetermined time has elapsed. Steps S4 to S6 are repeated until the above.
  • the timing at which the liquid L is dropped from the discharge nozzle can be changed as appropriate.
  • the liquid L is dropped at a preset timing.However, the amount of the liquid L staying on the diaphragm 32 is detected by a sensor or the like, and the amount of the staying liquid L is equal to or less than a predetermined value. Then, the liquid L may be dropped.
  • the nozzle 2 may be detachable from the tank 3 and the housing 4. Further, the atomized particles or the negative ions are discharged to the front of the liquid atomizing device 1 by the flow of air generated by the fan 5, so that the liquid atomizing device 1 does not need to include the nozzle 2.
  • the shape of the mist generating portion 20, that is, the shape of the vibration plate 32 and the piezoelectric element 33 is not limited to the disk shape shown in FIG. 5, but may be any shape having a resonance frequency of about 1 MHz. It may be a polygonal shape. Further, as shown in FIG. 6, a concave portion for holding a liquid may be formed on the surface of diaphragm 32.
  • the shape and number of the convex portions or concave portions formed on the surface of the diaphragm 32 and their positions on the diaphragm 32 are not limited to the shapes and positions shown in FIGS. It suffices that the shape, the number, and the position satisfy the condition that 0 has a resonance frequency of about 1 MHz and that a predetermined amount of the dropped liquid can be retained.
  • the frequency of the high-frequency voltage applied to the piezoelectric element 33 is not limited to about 1 MHz, but can be changed from about 500 kHz to about 3 MHz by changing the shape of the mist generating section 20. At specific frequencies within the range, it is possible to generate appropriately sized droplets.
  • the mechanism may be a mechanism in which the shaft 28 is pushed out by supplying current to the solenoid 25, and the volume of the space for temporarily storing the liquid L formed by the diaphragm 23 and the pump casing 22. Can be changed as long as the mechanism can change periodically.
  • the part where the liquid L to be atomized is dropped onto the diaphragm 32 is not limited to the part using the pump casing 22, the diaphragm 23 and the solenoid 25 described above, and the liquid L is supplied to the evening.
  • Other parts pumped from 3 may be used.
  • liquid L is used as the liquid L to be atomized, but a liquid mixture obtained by mixing a small amount of a hydrophilic organic compound or the like with water may be used.
  • the material of the diaphragm 32 can be selected in consideration of a protection surface, a sanitary surface, and the like.
  • stainless steel such as SUS303 can be used.
  • the mode switching switch 6 is used to switch between the atomization mode and the mixing mode.
  • it may be configured such that only the negative ions are generated without performing the atomization.
  • fine mist particles can be generated more efficiently than in the past, and even when continuously applied to humidification of the human body, mist particles attached to the skin flow down. There is no formation of droplets of the size of a dust. Therefore, the user does not feel discomfort due to dripping of droplets from the skin.
  • mist generating part has a convex or concave part provided on the diaphragm
  • a predetermined amount of the dripped liquid can be retained on the diaphragm even when tilting occurs when it is used by holding it by hand. It is possible to stably generate mist particles.
  • the nozzle for discharging mist particles detachable cleaning and inspection of the mist generation part and the tank inner wall become easy.
  • liquid that does not stay on the mist generation part and mist particles adhered to the nozzle and the inner wall of the tank upper part were formed. Droplets can be collected in the tank, and the efficiency of liquid use can be improved.
  • a mist generating part 20 was formed by bonding to the element 33 (electrodes not shown).
  • a high frequency voltage of about 1 MHz is supplied from the mist generation control section 41, and the cycle is about 2 seconds from the solenoid control section 43 to the solenoid 25 (for example, the current supply time is about 0.2 seconds).
  • the current was supplied for a supply stop time of about 1.8 seconds.
  • Pure water was used as the liquid to be atomized.
  • several rechargeable batteries of AA size are placed inside the housing, and the shape of the lower part of the housing and the weight of the entire liquid atomizer are designed and shaped so that even a general woman can easily hold it with one hand. Made.
  • the liquid atomizer manufactured under the above conditions is capable of stably generating fine mist particles, and is large enough to allow mist particles attached to the skin to flow down even when used continuously for humidifying the human body. No water droplets were formed. In addition, it was easy to hold the liquid atomizer with one hand and apply the mist to any part of the human body. Industrial potential
  • fine mist particles can be generated more efficiently than before, and even when continuously applied to the humidification of the human body, droplets large enough to allow the mist particles attached to the skin to flow down are formed. It is possible to provide a small and light liquid atomizing device that does not need to be performed.

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Abstract

L'invention concerne un dispositif d'atomisation de liquides comprenant une buse (2), un réservoir (3), un logement (4) contenant une partie d'atomisation, et des parties de production d'ions négatifs et de commande, ainsi qu'une soufflante (5), la partie d'atomisation comprenant également un corps de pompe (22) comportant une partie de production de brouillard (20), un tube d'aspiration (21), et une valve (29), un solénoïde (25) comportant une membrane (23), un ressort (24), et un arbre (28), un tube de vidange (26), et une buse d'injection de liquide (27), le liquide (L) stocké dans le réservoir (3) s'écoulant goutte à goutte depuis la buse d'injection de liquide (27) sur la partie de production de brouillard (20), et une tension à fréquence élevée est appliquée à la partie de production de brouillard (20) pour atomiser le liquide accumulé sur la partie de production de brouillard (20), les ions négatifs produits par la partie de production d'ions négatifs pouvant être appliqués aux mousses de brouillard produites.
PCT/JP2003/002172 2003-02-27 2003-02-27 Dispositif d'atomisation de liquides WO2004076077A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003211742A AU2003211742A1 (en) 2003-02-27 2003-02-27 Liquid atomizing device
PCT/JP2003/002172 WO2004076077A1 (fr) 2003-02-27 2003-02-27 Dispositif d'atomisation de liquides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/002172 WO2004076077A1 (fr) 2003-02-27 2003-02-27 Dispositif d'atomisation de liquides

Publications (1)

Publication Number Publication Date
WO2004076077A1 true WO2004076077A1 (fr) 2004-09-10

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PCT/JP2003/002172 WO2004076077A1 (fr) 2003-02-27 2003-02-27 Dispositif d'atomisation de liquides

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AU (1) AU2003211742A1 (fr)
WO (1) WO2004076077A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102802810A (zh) * 2009-11-18 2012-11-28 雷克特本克斯尔有限责任公司 表面处理设备和方法
WO2021090661A1 (fr) * 2019-11-07 2021-05-14 株式会社エアレックス Système de décontamination

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848365U (ja) * 1981-09-21 1983-04-01 ティーディーケイ株式会社 ホ−ン付超音波霧化器
JPH0327253U (fr) * 1989-07-25 1991-03-19
JPH08332425A (ja) * 1995-06-06 1996-12-17 Funai Electric Co Ltd 霧化装置
JP2000140729A (ja) * 1994-08-19 2000-05-23 Toto Ltd 液体噴霧装置
EP1022063A1 (fr) * 1997-10-06 2000-07-26 Omron Corporation Pulverisateur
JP2001149473A (ja) * 1999-11-29 2001-06-05 Omron Corp 噴霧装置
JP2001300375A (ja) * 2000-04-25 2001-10-30 Matsushita Electric Works Ltd 超音波霧発生方法
JP2002098371A (ja) * 2000-09-26 2002-04-05 Toyotomi Co Ltd マイナスイオン発生器付加湿器

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848365U (ja) * 1981-09-21 1983-04-01 ティーディーケイ株式会社 ホ−ン付超音波霧化器
JPH0327253U (fr) * 1989-07-25 1991-03-19
JP2000140729A (ja) * 1994-08-19 2000-05-23 Toto Ltd 液体噴霧装置
JPH08332425A (ja) * 1995-06-06 1996-12-17 Funai Electric Co Ltd 霧化装置
EP1022063A1 (fr) * 1997-10-06 2000-07-26 Omron Corporation Pulverisateur
JP2001149473A (ja) * 1999-11-29 2001-06-05 Omron Corp 噴霧装置
JP2001300375A (ja) * 2000-04-25 2001-10-30 Matsushita Electric Works Ltd 超音波霧発生方法
JP2002098371A (ja) * 2000-09-26 2002-04-05 Toyotomi Co Ltd マイナスイオン発生器付加湿器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102802810A (zh) * 2009-11-18 2012-11-28 雷克特本克斯尔有限责任公司 表面处理设备和方法
WO2021090661A1 (fr) * 2019-11-07 2021-05-14 株式会社エアレックス Système de décontamination

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