WO2019065711A1 - Élément oscillant d'atomisation, unité d'atomisation, dispositif d'atomisation et procédé d'entraînement pour dispositif d'atomisation - Google Patents

Élément oscillant d'atomisation, unité d'atomisation, dispositif d'atomisation et procédé d'entraînement pour dispositif d'atomisation Download PDF

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Publication number
WO2019065711A1
WO2019065711A1 PCT/JP2018/035628 JP2018035628W WO2019065711A1 WO 2019065711 A1 WO2019065711 A1 WO 2019065711A1 JP 2018035628 W JP2018035628 W JP 2018035628W WO 2019065711 A1 WO2019065711 A1 WO 2019065711A1
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Prior art keywords
atomizing
vibrator
electrode
atomization
outer peripheral
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PCT/JP2018/035628
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English (en)
Japanese (ja)
Inventor
和之 池浜
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株式会社フコク
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Priority to JP2019545554A priority Critical patent/JP7232767B2/ja
Priority to KR1020207008429A priority patent/KR20200062200A/ko
Priority to CN201880061606.2A priority patent/CN111163869A/zh
Publication of WO2019065711A1 publication Critical patent/WO2019065711A1/fr

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    • 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
    • B05B17/0638—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 spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
    • B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
    • 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
    • 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
    • B05B17/0653—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to an atomizing vibrator for atomizing by applying ultrasonic vibration to a liquid for atomizing, an atomizing unit provided with the atomizing vibrator, an atomizing apparatus provided with the atomizing unit, and an atomization apparatus
  • the present invention relates to a method of driving an apparatus.
  • the present invention relates to an atomizing vibrator suitable for installation in a liquid storage tank in which the water level (liquid level) of the liquid for atomization decreases with atomization.
  • an ultrasonic vibration method is employed as a method of atomizing a liquid.
  • an ultrasonic transducer is installed at the bottom of a liquid storage tank for storing a liquid for atomization.
  • a high frequency voltage is applied to the ultrasonic transducer, the atomizing liquid in the liquid storage tank is atomized by high frequency vibration.
  • the micronized liquid is delivered as a mist to the outside by a blower fan or the like.
  • Such an atomization device is put to practical use as, for example, a humidifier.
  • the amount of atomization changes depending on the distance from the ultrasonic transducer to the liquid surface of the liquid storage tank, that is, the liquid level of the liquid surface for atomization.
  • a replenishment tank for supplying the liquid for atomization, which is consumed as a mist, to the liquid storage tank Is required for example, there is a mist generating device disclosed in Patent Document 1 as the atomizing device.
  • the atomizing device described in Patent Document 1 requires a replenishment tank in addition to the liquid storage tank, which complicates the entire configuration of the atomizing device and restricts the degree of freedom in shape (design) design. was there.
  • the replenishment tank is abolished, the liquid level of the storage tank can not be maintained at the height at which the amount of atomization peaks due to the consumption of the liquid for atomization, and the amount of atomization largely changes depending on the liquid level of the storage tank. There was such a problem.
  • the present invention solves such conventional problems, and a suitable atomization can be realized according to the liquid level of the liquid storage tank, and a vibrator for atomization that can eliminate the replenishment tank, It is an object of the present invention to provide an atomization unit provided with a vibrator for atomization, an atomization device provided with the atomization unit, and a driving method of the atomization device.
  • An atomizing vibrator includes a plate-like piezoelectric vibrator and an electrode provided on each of one side and the other side of the piezoelectric vibrator. And an electrode provided on the one surface of the piezoelectric vibrator surrounds a center electrode disposed at a central portion of the piezoelectric vibrator and an outer periphery of the center electrode, and is electrically connected to the center electrode. And an annular outer peripheral electrode arranged separately.
  • An atomizing vibrator is characterized in that the outer peripheral electrode is electrically separated into at least two or more annular electrodes via an annular gap portion.
  • An atomizing vibrator comprises a disc-shaped piezoelectric vibrator, and an atomizing electrode provided with circular electrodes provided on one side and the other side of the piezoelectric vibrator, respectively.
  • a vibrator wherein an electrode provided on the one surface of the piezoelectric vibrator is electrically connected to a center electrode disposed at a central portion of the piezoelectric vibrator, concentric with the center electrode, and electrically And an annular outer peripheral electrode arranged separately.
  • the outer peripheral electrode is electrically separated into at least two or more annular electrodes via an annular gap provided concentrically. It is characterized by
  • An atomizing vibrator is an atomizing vibrator including a plate-like piezoelectric vibrator, and electrodes provided on each of one surface and the other surface of the piezoelectric vibrator.
  • an electrode provided on the one surface of the piezoelectric vibrator is a center electrode disposed eccentrically with respect to the center of the one surface of the piezoelectric vibrator, and an outer periphery of the center electrode.
  • an annular outer peripheral electrode disposed so as to be electrically separated from the center electrode.
  • An atomizing vibrator according to a sixth invention is characterized in that the piezoelectric vibrator in the fifth invention has a disk shape.
  • the outer peripheral electrode is electrically separated into at least two or more electrodes sequentially surrounding the outer periphery of the center electrode in layers through a gap portion. It is characterized by
  • An atomization unit comprises the atomizing vibrator according to any of the first, third, fifth, or sixth inventions, and a drive unit for driving the atomizing vibrator.
  • the drive unit turns on / off the switch unit based on a switch unit that turns on / off the energization of the outer peripheral electrode and an output signal from a liquid level detection unit that detects the liquid level of the liquid storage tank. And a control unit for switching.
  • An atomization unit includes the atomizing vibrator according to any of the second, fourth, and seventh aspects of the present invention, and a drive unit for driving the atomizing oscillator, A section is provided corresponding to each of the plurality of outer peripheral electrodes, and a switch section that turns on / off energization to the corresponding outer peripheral electrodes, and an output from liquid level detection means for detecting the liquid level of the liquid storage tank And a control unit configured to switch ON / OFF of the switch unit based on a signal.
  • An atomization apparatus is the atomization unit according to the eighth aspect, a liquid storage tank for storing liquid for atomization, and liquid level detection means for detecting the liquid level of the liquid storage tank.
  • the vibrator for atomization is installed at the bottom of the liquid storage tank, and the control unit controls the liquid level of the liquid storage tank based on an output signal from the liquid level detection means. Is switched to a predetermined value, the switch unit is switched from ON to OFF.
  • An atomization apparatus comprises: the atomization unit according to the ninth aspect, a liquid storage tank for storing liquid for atomization, and liquid level detection means for detecting the liquid level of the liquid storage tank.
  • the vibrator for atomization is installed at the bottom of the liquid storage tank, and the control unit controls the liquid level of the liquid storage tank based on an output signal from the liquid level detection means.
  • the outer peripheral electrode whose switch portion is switched from ON to OFF is gradually increased toward the central portion.
  • a driving method of an atomization device wherein the atomizing vibrator according to any of the first, third, fifth or sixth aspects of the invention is a liquid storage tank in which liquid for atomization is stored.
  • the driving method of the atomization device installed at the bottom portion is characterized in that energization of the outer peripheral electrode is stopped when the liquid level of the liquid storage tank falls to a predetermined value.
  • the vibrator for atomization according to any of the second, fourth or seventh invention is installed at the bottom of a liquid storage tank for storing the liquid for atomization.
  • the outer electrode to be deenergized is gradually increased toward the central portion as the liquid level of the liquid storage tank is lowered.
  • the vibrator for atomization of the present invention when the liquid level of the liquid storage tank is at the high level, current is supplied to both the center electrode and the outer peripheral electrode to perform atomization according to the high level,
  • the energization to the outer peripheral electrode is stopped, and only the central electrode is energized, whereby atomization according to the low liquid level can be performed. For this reason, even if the liquid level in the liquid storage tank is lowered, suitable atomization can be realized, and stable atomization can be realized without requiring a replenishment tank.
  • FIG. 1 It is a figure which shows one surface side of the vibrator
  • FIG 8 is a view showing a change in the amount of atomization with respect to the liquid level when only the center electrode is energized and when both the center electrode and the outer peripheral electrode are energized in the atomizing vibrator according to the first embodiment. It is a figure which shows the change of the amount of atomization with respect to a liquid level when switching to a high liquid mode and a low liquid mode. It is a figure which shows the change of the amount of atomization with respect to the liquid level in three atomization modes, high liquid mode, medium liquid mode, and low liquid mode.
  • FIG. 1 is a schematic configuration view of an atomizing apparatus 1 including an atomizing vibrator 10 according to the present embodiment.
  • the atomization device 1 according to the present embodiment includes a liquid storage tank 2 for storing the liquid for atomization, and an atomization unit 3 for atomizing the liquid W for atomization stored in the liquid storage tank 2. ing.
  • the liquid storage tank 2 is a tank for storing the liquid W for atomization, and a through hole 4 to which the vibrator 10 for atomization of the atomization unit 3 is attached is formed in the bottom portion (bottom surface) 2A.
  • the liquid storage tank 2 is made of, for example, a synthetic resin or a metal material.
  • the liquid storage tank 2 is accommodated in the atomizing device main body (not shown), held via a predetermined supporting means, and is detachably attached to the atomizing device main body. It is preferable that the liquid storage tank 2 can store an atomizable volume continuously without replenishing the atomizing liquid W for a predetermined time.
  • the atomization liquid W is not limited to water such as tap water, and is targeted for atomization of a chemical solution, aromatic liquid, etc. Any liquid may be used as long as
  • a liquid level sensor (liquid level detection means) 5 for detecting the liquid level of the stored liquid W for atomization is provided in the liquid storage tank 2.
  • the liquid level sensor 5 may be, for example, a capacitance type, a weight type, an optical type, a laser type, a radio wave type, an ultrasonic type, or a float type. In the present invention, the method of the liquid level sensor is not limited to this.
  • the atomization unit 3 includes an atomizing vibrator 10 and a drive unit 60 for driving the atomizing vibrator 10.
  • a drive unit 60 for driving the atomizing vibrator 10.
  • the atomizing vibrator 10 includes a plate-like piezoelectric vibrator 11 and a pair of layered electrodes 12 and 20 formed so as to sandwich the piezoelectric vibrator 11.
  • the piezoelectric vibrator 11 has a disk shape, and the surface side (also referred to as “the other surface”) 11 a of the piezoelectric vibrator 11 to be the atomizing liquid W side has a circular shape.
  • An electrode 12 slightly smaller in diameter than the piezoelectric vibrator 11 is formed by plating or the like concentrically with the piezoelectric vibrator 11.
  • an electrode 20 having a diameter slightly smaller than that of the piezoelectric vibrator 11 is concentric with the piezoelectric vibrator 11 in a circular shape on the surface (referred to as “one surface”) 11 b on the opposite side to the atomizing liquid W Is formed by plating or the like.
  • one surface the surface
  • the piezoelectric vibrator according to the present invention is not limited to the disk shape, and there is no particular problem as long as it is plate-shaped. The details of the electrode 20 will be described later.
  • the piezoelectric vibrator 11 is configured by polarizing a piezoelectric material such as piezoelectric ceramic having a predetermined thickness in the thickness direction.
  • the piezoelectric vibrator 11 contracts and expands depending on the direction of a high frequency voltage (also referred to as a “high frequency drive signal”) applied via the electrodes 12 and 20, thereby converting electrical energy into mechanical energy. it can.
  • a high frequency voltage also referred to as a “high frequency drive signal”
  • Examples of the piezoelectric ceramic include perovskite-type oxides such as lead zirconate titanate (PZT) and lead zirconate titanate niobate (PZTN), but the present invention is not limited thereto.
  • the atomizing vibrator 10 is placed on the bottom of the liquid storage tank with the electrode 12 on the upper side so that the electrode 12 disposed on the other surface 11 a is on the atomizing liquid W side of the liquid storage tank 2.
  • the elastic packing 14 is fitted in the through hole 4 formed in 2A.
  • the elastic packing 14 is formed, for example, by annularly forming an elastic material such as silicone rubber.
  • the elastic packing 14 may be provided on its inner circumferential surface with an annular holding groove for holding the piezoelectric vibrator 11 provided with the electrodes 12 and 20.
  • the electrode 12 disposed on the other surface 11 a of the piezoelectric vibrator 11 can be supplied with power from the one surface 11 b side of the piezoelectric vibrator 11 in a state where the elastic packing 14 is attached. It has a connecting portion 12A of a tongue drawn out to one side 11b of the 11 side. Further, as described above, the electrode 12 is formed to have a diameter slightly smaller than the outer diameter of the piezoelectric vibrator 11, and in order to prevent the electrode 12 from coming into direct contact with the atomization liquid W, A protective layer 15 which covers the electrode 12 is formed on the other surface 11 a of the vibrator 11.
  • the said protective layer 15 may be comprised, for example with metal foils, such as stainless steel and titanium, and may be comprised with the metal protective film by plating, and the coating film by resin.
  • FIG. 3 shows the other surface 11 a side of the piezoelectric vibrator 11 in a state before the protective layer 15 is formed.
  • FIGS. 4 to 7 oblique lines in the drawings are attached to show the surface of the electrode and do not indicate the cross section of the electrode.
  • the atomizing vibrator 10 described above will be described as the atomizing vibrators 10A to 10D.
  • the electrodes 20 described above will be described as the electrodes 20A to 20D, respectively.
  • FIG. 4 is a view showing one surface 11b side of the atomizing vibrator 10A of the first embodiment.
  • the electrode 20A provided on the side 11b of the disk-shaped piezoelectric vibrator 11 has a circular center electrode 21 and the outer periphery of the center electrode 21.
  • An annular outer peripheral electrode 22 concentrically disposed with the center electrode 21 is provided so as to surround it.
  • the circular center electrode 21 has a diameter smaller than that of the piezoelectric vibrator 11 and is concentrically provided at the center of the piezoelectric vibrator 11. Further, the annular outer peripheral electrode 22 has an inner diameter slightly larger than the outer diameter of the central electrode 21 and an outer diameter substantially the same as or slightly smaller than the electrode 12, and is arranged concentrically with the central electrode 21. . The center electrode 21 and the outer peripheral electrode 22 are electrically separated via an annular gap portion 23.
  • Power supply wirings 24 and 25 are connected to the outer peripheral edge of the center electrode 21 and the outer peripheral electrode 22, respectively, and a power supply wiring 26 is connected to the connection 12A on the electrode 12 side.
  • the drive region of the piezoelectric vibrator 11 is in the radial direction It is configured to be reduced to That is, when the atomizing vibrator 10A of the first embodiment is energized to the electrode 12, the center electrode 21 and the outer peripheral electrode 22, the piezoelectric vibrator 11 of the piezoelectric vibrator 11 covered with the center electrode 21 and the outer peripheral electrode 22 The substantially entire surface 11 is the drive area.
  • the driving area can be made radial with one atomizing vibrator. It can be switched in two stages (large diameter, small diameter).
  • FIG. 5 is a view showing one surface 11b side of the atomizing vibrator 10B of the second embodiment.
  • the atomizing vibrator 10B of the second embodiment takes into consideration the connection of the power supply wiring connected to the electrode 20B provided on one surface 11b.
  • a center electrode 31 having a circular electrode body and an electrode 20B provided on one surface 11b of the piezoelectric vibrator 11 and the center electrode
  • an annular peripheral electrode 32 disposed concentrically with the electrode 31.
  • a connection piece 31 ⁇ / b> A for connecting the power supply wiring 33 extends from the electrode body in the radial direction to the outer edge of the piezoelectric vibrator 11.
  • a part of the annular portion is notched in the radial direction.
  • it is included in the outer peripheral electrode of the present invention as long as it has an annular shape as a whole.
  • FIG. 6 is a view showing one surface 11 b side of the atomizing vibrator 10 ⁇ / b> C of the third embodiment.
  • the outer diameter of the center electrode 41 constituting the electrode 20C provided on one surface 11b is slightly smaller than that of the center electrode 21 of the first embodiment.
  • Power supply wirings 45, 46, and 47 are connected to the center electrode 41, the first outer peripheral electrode 42, and the second outer peripheral electrode 43, respectively.
  • the energization to the first outer peripheral electrode 42 and the second outer peripheral electrode 43 is controlled by the open / close switches 48 and 49, so that one atomizing vibrator can be used.
  • the drive range can be switched in three stages (large diameter, medium diameter, small diameter) in the radial direction.
  • the same components as those of the atomizing vibrator 10A of the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
  • FIG. 7 is a view showing one surface 11b side of the atomizing vibrator 10D according to the fourth embodiment.
  • the atomizing vibrator 10D of the fourth embodiment considers the connection of the power supply wiring connected to the electrode 20D provided on the one surface 11b.
  • the electrode 20D provided on one surface 11b of the piezoelectric vibrator 11 has a center electrode 51 having a circular electrode main body, and this center electrode A first outer peripheral electrode 52 and a second outer peripheral electrode 53 are provided concentrically with the electrode 51.
  • a connection piece 51A for connecting the power supply wiring 54 extends from the electrode body to the outer edge of the piezoelectric vibrator 11 in the radial direction.
  • the first outer peripheral electrode 52 is provided with a notch 52B in which a part of the annular portion is cut in the radial direction in order to electrically insulate the connection piece 51A.
  • a part of the annular portion is cut away in the radial direction with a width larger than that of the notch 52B of the first outer peripheral electrode 52 It has a notch 53A.
  • the annular outer periphery of the present invention Included in the electrode.
  • connection piece 52A for connecting the power supply wiring 55 extends in the radial direction to the outer edge of the piezoelectric vibrator 11.
  • feed wirings 54, 55, 56 are connected respectively.
  • the atomizing vibrator 10D of the fourth embodiment there is an advantage that the power supply wirings 54, 55, 56 to the electrode 20D provided on one surface 11b can be put together in one place. is there.
  • the same components as those of the atomizing vibrator 10C of the third embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
  • the center of the center electrode is provided at the center of the piezoelectric vibrator 11 in each embodiment described above, the center of the center electrode does not have to be the same as the center of the piezoelectric vibrator 11. Instead, it is only necessary to surround the periphery of the central electrode in a state where the outer peripheral electrode is electrically separated from the central electrode. That is, the center of the center electrode is disposed eccentrically with respect to the in-plane center of the piezoelectric vibrator, and the outer peripheral electrode is disposed so as to surround the outer periphery of the center electrode. It may be decentered with respect to the in-plane center of the lens.
  • the center electrode and the outer peripheral electrode shown in each drawing are the same as the center electrode 31 and the outer peripheral electrode 32 of the atomizing vibrator 10B of the second embodiment shown in FIG. It is eccentric with respect to the center P1.
  • FIG. 8 when the diameter of the outer peripheral electrode 32 is 100%, the center P2 of the center electrode 31 is 3% from the in-plane center P1 of the piezoelectric vibrator 11 in the direction in which the connection piece 31A is formed. Indicates an eccentric one.
  • FIG. 9 similarly decenters the center P2 of the center electrode 31 by 3% opposite to the direction in which the connection piece 31A is formed, and
  • FIG. 10 shows the direction in which the center P2 of the center electrode 31 is formed the connection piece 31A
  • FIG. 11 shows that the center P2 of the center electrode 31 is maximally eccentric in the direction opposite to the direction in which the connection piece 31A is formed.
  • the outer peripheral electrode is composed of a first outer peripheral electrode to an nth outer peripheral electrode (an integer of n ⁇ 2) arranged in order from the center electrode side, and the first outer peripheral electrode to the n th outer peripheral electrode are in the same plane It may be spaced apart so as to surround the outer peripheral electrode located adjacent to the inner side.
  • each electrode which comprises an outer periphery electrode is surrounded in layered form in order of the outer periphery of a center electrode.
  • the outer diameter of the nth outer peripheral electrode (peripheral electrodes 22, 32, 43, 53) located on the outermost side is the outer diameter of the electrode 12 provided on the other surface 11a of the piezoelectric vibrator 11. Preferably it is equal to or less than the diameter.
  • the distance between the center electrode and the outer peripheral electrode and the distance between the outer peripheral electrodes are not particularly limited as long as they can electrically insulate. It is preferable that the distance be as narrow as possible.
  • the atomization unit 3 includes an atomizing vibrator 10 and a drive unit 60 that drives the atomizing vibrator 10.
  • the driving unit 60 outputs a high frequency driving signal to the electrodes 12 and 20 of the atomizing vibrator 10, and a switch unit 8 having a control unit 6, a high frequency oscillating unit 7, and an open / close switch 27 (48, 49). And have.
  • the control unit 6 is connected to the liquid level sensor 5, and based on the output from the liquid level sensor 5, “close (ON)” and “open (OFF)” of the open / close switch 27 (48, 49) of the switch unit 8. Is output to the switch unit 8.
  • the high frequency oscillation unit 7 is connected to an external power supply (not shown) (for example, a commercial power supply of 50 Hz), generates a high frequency drive signal from the external power supply, and outputs it to the electrodes 12 and 20 of the atomizing vibrator 10.
  • an external power supply for example, a commercial power supply of 50 Hz
  • the open / close switch 27 (48, 49) is switched to either “close (ON)” or “open (OFF)” based on a command signal from the control unit 6.
  • the open / close switch 27 is "open (OFF)"
  • the high frequency drive signal output from the oscillation unit 7 is supplied only to the center electrode 21 or the center electrode 31.
  • the atomization amount of the atomization liquid W by the atomization vibrator 10 depends on the distance from the other surface 11 a of the piezoelectric oscillator 11 to the liquid level of the atomization liquid W, that is, the liquid level of the liquid storage tank 2 fluctuate.
  • FIG. 12 shows changes in the amount of atomization with respect to liquid level when only the center electrode 21 is energized and when both the center electrode 21 and the outer peripheral electrode 22 are energized in the atomizing vibrator 10A of the first embodiment. .
  • the broken line shows the case where only the center electrode 21 is energized
  • the solid line shows the case where both the center electrode 21 and the outer peripheral electrode 22 are energized.
  • the liquid level showing the peak of the atomization amount differs depending on the diameter of the energized electrode.
  • the atomizing vibrator 10 energizes both the central electrode 21 and the outer peripheral electrode 22 (the diameter of the energized electrode is large)
  • the atomization amount peaks at a relatively high liquid level, and only the central electrode 21 is energized.
  • the amount of atomization peaks at a relatively low liquid level (when the diameter of the energized electrode is small).
  • the atomization amount when both the center electrode 21 and the outer peripheral electrode 22 are energized and the atomization amount when only the center electrode 21 is energized reversely at the liquid level L (for example, 50 mm).
  • the liquid level L (for example, 50 mm) of the liquid storage tank 2 is used as a threshold value, and the control unit 6 moves to the electrode 20A of the atomizing vibrator 10 based on the output from the liquid level sensor 5 Switch the power on in stages. Specifically, when the liquid level of the liquid storage tank 2 becomes the threshold L due to the atomization based on the output from the liquid level sensor 5, the control unit 6 stops the energization of the outer peripheral electrode 22. .
  • the atomization mode in the case where the liquid level of the liquid storage tank 2 detected by the liquid level sensor 5 exceeds the threshold L is referred to as “high liquid level mode”.
  • the atomization mode when the position becomes equal to or less than the threshold L is referred to as "low liquid level mode”.
  • the switching of the atomization mode is performed by the control unit 6 based on the output from the liquid level sensor 5.
  • the control unit 6 sets the open / close switch 27 of the switch unit 8 in the “closed (ON)” state based on the output from the liquid level sensor 5.
  • the high frequency oscillation unit 7 outputs a high frequency drive signal to both the center electrode 21 and the outer peripheral electrode 22 through the switch unit 8. Thereby, the vibrator 10A for atomization can perform suitable atomization according to a high liquid level.
  • the control unit 6 sets the open / close switch 27 of the switch unit 8 to the “open (OFF)” state based on the output from the liquid level sensor 5.
  • the high frequency oscillation unit 7 outputs the high frequency drive signal only to the center electrode 21 through the switch unit 8. Thereby, the vibrator 10A for atomization can perform suitable atomization according to the low liquid level.
  • the “low liquid mode” when the liquid W in the liquid storage tank 2 exceeds the threshold L by replenishing the atomization liquid W, the mode is switched to the “high liquid mode”, and the high frequency oscillation unit 7 The high frequency drive signal is output to both the center electrode 21 and the outer peripheral electrode 22 through the switch unit 8.
  • the atomization device 1 of the present embodiment when the liquid level of the liquid storage tank 2 becomes equal to or less than the threshold L, the energization to the outer peripheral electrode 22 is stopped and only the center electrode 21 is As a result, the suitable atomization can be realized according to the liquid level. For this reason, even if the liquid level of the liquid storage tank 2 is greatly reduced due to atomization, the reduction in the amount of atomization can be suppressed within a certain range, and stable atomization is realized without requiring a replenishment tank. it can.
  • FIG. 14 is a diagram showing the change in the amount of atomization relative to the liquid level in the three atomization modes of “high liquid mode”, “medium liquid mode” and “low liquid mode”.
  • the case of using the atomizing vibrator 10C (10D) provided with two outer peripheral electrodes of the first outer peripheral electrode 42 (52) and the second outer peripheral electrode 43 (53) Can set three atomization modes, "high liquid mode", “medium liquid mode” and "low liquid mode”.
  • the center electrode 41 (51), the first outer peripheral electrode 42 (52), and the second outer peripheral electrode 43 (53) are energized.
  • the current supply to the second outer peripheral electrode 43 (53) is stopped, and the current is supplied to the center electrode 41 (51) and the first outer peripheral electrode 42 (52).
  • the energization of the first outer peripheral electrode 42 (52) and the second outer peripheral electrode 43 (53) is stopped, and only the center electrode 41 (51) is energized.
  • the switch unit 8 is constituted by two switches of an open / close switch 48 and 49.
  • suitable atomization can be realized according to each liquid level.
  • the vibrator for atomization, the atomization unit, the atomization apparatus, and the driving method of the atomization apparatus according to the present invention are not limited to the atomization apparatus without the auxiliary tank, but used for the atomization apparatus provided with the auxiliary tank It is also good.
  • suitable atomization can be realized according to the liquid level of the liquid storage tank after the auxiliary tank becomes empty.
  • the atomizing vibrator according to the present invention can realize suitable atomization according to the liquid level of the liquid storage tank, the atomizing apparatus does not have a replenishment tank for keeping the liquid level of the liquid storage tank constant. Are particularly useful in

Abstract

La présente invention a pour objet un élément oscillant d'atomisation qui permet de réaliser une atomisation appropriée en fonction du niveau de liquide dans un réservoir de stockage de liquide, une unité d'atomisation, un dispositif d'atomisation et un procédé d'entraînement pour un dispositif d'atomisation. À cet effet, l'invention concerne un élément oscillant d'atomisation (10) qui comprend un oscillateur piézoélectrique de type plaque (11) et des électrodes disposées sur chacune d'une face (11b) et d'une autre face (11a) de l'oscillateur piézoélectrique (11), les électrodes disposées sur la face (11b) comprenant une électrode centrale (21) disposée dans la partie centrale de l'oscillateur piézoélectrique (11) et une électrode circonférentielle externe annulaire (22) disposée de manière à entourer la circonférence de l'électrode centrale (21) et électriquement isolée de l'électrode centrale (21).
PCT/JP2018/035628 2017-09-29 2018-09-26 Élément oscillant d'atomisation, unité d'atomisation, dispositif d'atomisation et procédé d'entraînement pour dispositif d'atomisation WO2019065711A1 (fr)

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JP2019545554A JP7232767B2 (ja) 2017-09-29 2018-09-26 霧化ユニット、霧化装置及び霧化装置の駆動方法
KR1020207008429A KR20200062200A (ko) 2017-09-29 2018-09-26 분무화용 진동자, 분무화 유닛, 분무화 장치 및 분무화 장치의 구동 방법
CN201880061606.2A CN111163869A (zh) 2017-09-29 2018-09-26 雾化用振子、雾化单元、雾化装置及雾化装置的驱动方法

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JP2017190122 2017-09-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210348778A1 (en) * 2020-05-06 2021-11-11 Ademco Inc. Humidifier cartridge with handle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751666U (fr) * 1980-09-04 1982-03-25
JPS6033139U (ja) * 1983-08-10 1985-03-06 三洋電機株式会社 超音波加湿装置
JPS618472U (ja) * 1984-06-21 1986-01-18 ティーディーケイ株式会社 振動子保持構造
JPS6316076A (ja) * 1986-07-07 1988-01-23 沖電気工業株式会社 超音波圧電振動子の電極取付装置
JPS63130160A (ja) * 1986-11-14 1988-06-02 キブツ・ネツツアー・セレニ 液を噴霧化する装置
JP2011110453A (ja) * 2009-11-24 2011-06-09 Touki Co Ltd 成膜用霧化装置
JP2016211768A (ja) * 2015-05-01 2016-12-15 株式会社静岡産業社 霧発生装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05208151A (ja) 1992-01-30 1993-08-20 S N D:Kk ミスト発生装置
JP3972610B2 (ja) * 2001-07-26 2007-09-05 松下電工株式会社 超音波美容器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751666U (fr) * 1980-09-04 1982-03-25
JPS6033139U (ja) * 1983-08-10 1985-03-06 三洋電機株式会社 超音波加湿装置
JPS618472U (ja) * 1984-06-21 1986-01-18 ティーディーケイ株式会社 振動子保持構造
JPS6316076A (ja) * 1986-07-07 1988-01-23 沖電気工業株式会社 超音波圧電振動子の電極取付装置
JPS63130160A (ja) * 1986-11-14 1988-06-02 キブツ・ネツツアー・セレニ 液を噴霧化する装置
JP2011110453A (ja) * 2009-11-24 2011-06-09 Touki Co Ltd 成膜用霧化装置
JP2016211768A (ja) * 2015-05-01 2016-12-15 株式会社静岡産業社 霧発生装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210348778A1 (en) * 2020-05-06 2021-11-11 Ademco Inc. Humidifier cartridge with handle
US11674700B2 (en) * 2020-05-06 2023-06-13 Ademco Inc. Humidifier cartridge with handle

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KR20200062200A (ko) 2020-06-03
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JP7232767B2 (ja) 2023-03-03

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