WO2008015394A1 - Atomiseur ultrasonique pour la dispersion d'un liquide - Google Patents

Atomiseur ultrasonique pour la dispersion d'un liquide Download PDF

Info

Publication number
WO2008015394A1
WO2008015394A1 PCT/GB2007/002863 GB2007002863W WO2008015394A1 WO 2008015394 A1 WO2008015394 A1 WO 2008015394A1 GB 2007002863 W GB2007002863 W GB 2007002863W WO 2008015394 A1 WO2008015394 A1 WO 2008015394A1
Authority
WO
WIPO (PCT)
Prior art keywords
wick
transducer
atomiser
liquid
reservoir
Prior art date
Application number
PCT/GB2007/002863
Other languages
English (en)
Inventor
David Healy
Kuldeep Kanwar
Joss Langford
Steve Walsh
Original Assignee
Reckitt Benckiser (Uk) Limited
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 Reckitt Benckiser (Uk) Limited filed Critical Reckitt Benckiser (Uk) Limited
Publication of WO2008015394A1 publication Critical patent/WO2008015394A1/fr

Links

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
    • 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
    • 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
    • B05B17/0669—Excitation frequencies
    • 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
    • B05B17/0676—Feeding means
    • B05B17/0684—Wicks or the like

Definitions

  • the present invention relates to an atomiser for the dispersal of a liquid.
  • Atomisers for dispensing of liquids are well known in the art.
  • US 4,415,121 discloses an atomiser having collapsible sides and an oscillating section to produce the mist to be sprayed from the atomiser.
  • RTM Glade
  • RTM Wisp
  • This comprises a wick which is placed in the reservoir of material to be dispensed.
  • the wick leads to a position adjacent to a vibrating plate which is provided with a plurality of fine holes.
  • the plate must be carefully manufactured to ensure that the hole dimensions are well controlled and consistent. Liquid from the wick is held in a gap between the wick and plate. As the plate is vibrated, this liquid is dispersed through the holes in the orifice plate.
  • the gap between the wick and the transducer must be ti,ghtly controlled in order to optimise the efficiency of the ejection of the liquid droplets while ensuring that the presence of the wick does not adversely affect the vibration of the transducer. This can be difficult to achieve in practice.
  • an atomiser for the dispersal of a liquid comprising a reservoir of liquid, a wick in communication with the reservoir and a vibratable transducer in contact with a portion of the wick spaced from the reservoir and arranged to vibrate together with the portion of the wick to disperse liquid held by the wick in a direction from the wick away from the transducer.
  • the transducer is therefore a simple component and the potential for clogging is significantly reduced.
  • the invention therefore provides a simple and reliable atomiser in comparison with the prior art.
  • the transducer is preferably arranged to vibrate at a frequency of between 2OkHz and 2MHz, more preferably between 2OkHz and 200 kH, most preferably between 3OkHz and 150 kHz, such as 5OkHz and 100 kHz.
  • the transducer is a piezo electric transducer.
  • the atomiser is suitable for use with any liquid to be atomised.
  • it may be used for products such as fragrances, pesticides, detergents, malodour counteractants, water (for a humidifier) , or any other type of liquid or combination of liquids dispersed by atomisation.
  • the reservoir 1 is filled with a liquid 2 to be atomised.
  • a wick 3 leads from the fluid 2 to a transducer 4.
  • the wick may be fixed to the transducer for example using one or more clips, or may be bonded by an adhesive. Alternatively, it may simply rest on the transducer. However, it is important that the wick is in contact with the transducer and vibrates with it.
  • the wick is made of any fibrous material that is sufficiently flexible and of low enough mass not to severely dampen the motion of the transducer 4.
  • Woven cloth such as cotton or similar man- made materials would be suitable as would any fibre specifically optimised and woven for wicking and/or soaking up fluid such as those used in cleaning cloths and advanced outdoor clothing.
  • a non-fibrous wick such as a plastic moulded wick could also be used.
  • the transducer 4 is preferably a piezo electric transducer.
  • the transducer 4 is connected to a control circuit (not shown) and a suitable power source, preferably a battery, (not shown) is provided to power the transducer.
  • a suitable power source preferably a battery
  • the activation of the transducer may be determined automatically by the user to operate the atomiser at predetermined periodic intervals, or it may be responsive to some change in external conditions such as light level or temperature. Alternatively, it may be manually activated by a user by an appropriate switch.
  • the wick 3 covers substantially the entire surface of the transducer 4. This ensures that there is a constant supply of liquid across the surface of the transducer.
  • the transducer 4 is activated the liquid on its surface together with the portion of the wick which is attached to the transducer is vibrated thereby atomising the liquid as shown.
  • the droplet size can be controlled by controlling the vibration frequency of the transducer. Smaller droplets are generated at high frequency. However, this leads to a greater power consumption.
  • the device can therefore be optimised to provide the optimum droplet size for a particular; application having regarding to the available power supply. It is envisaged that the frequency of the transducer could be from 2OkHz to 2MHz, but in practice may not be much beyond 10OkHz or 15OkHz.
  • a second wick, or a branch from the first wick can cover some or all ⁇ of the opposite side of the transducer 4.
  • the wick may have a branch extending from the wick itself and this branch may cover at least a part of the opposite side of the transducer to that which is in contact with the wick itslf. It is preferred that the branch covers substantially all of the opposite side of the transducer.

Landscapes

  • Special Spraying Apparatus (AREA)

Abstract

L'invention concerne un atomiseur pour la dispersion d'un liquide, l'atomiseur comprenant un réservoir (1) de liquide (2), une mèche (3) en communication avec le réservoir et un transducteur susceptible de pouvoir vibrer (4). Le transducteur est en contact avec une partie de la mèche et est espacé du réservoir et disposé de sorte à vibrer avec la partie de la mèche afin de disperser le liquide maintenu par la mèche dans une direction en éloignement de la mèche et du transducteur. Cet agencement peut être produit de simple façon et réduit significativement le risque d'obturation de l'atomiseur.
PCT/GB2007/002863 2006-08-02 2007-07-27 Atomiseur ultrasonique pour la dispersion d'un liquide WO2008015394A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0615303.5 2006-08-02
GB0615303A GB0615303D0 (en) 2006-08-02 2006-08-02 An atomiser for the dispersal of a liquid

Publications (1)

Publication Number Publication Date
WO2008015394A1 true WO2008015394A1 (fr) 2008-02-07

Family

ID=37027062

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/002863 WO2008015394A1 (fr) 2006-08-02 2007-07-27 Atomiseur ultrasonique pour la dispersion d'un liquide

Country Status (2)

Country Link
GB (1) GB0615303D0 (fr)
WO (1) WO2008015394A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008107636A1 (fr) * 2007-03-07 2008-09-12 Reckitt Benckiser (Uk) Limited Dispositif de traitement autonome pour lave-vaisselle
US7547004B2 (en) * 2006-12-05 2009-06-16 Tsang-Hung Hsu Ergonomically operating portable humidifier
EP2100670A1 (fr) 2008-03-12 2009-09-16 Microflow Engineering SA Procédé et dispositif pour évaporer des liquides à haute viscosité avec un minimum de rechange
US7883031B2 (en) 2003-05-20 2011-02-08 James F. Collins, Jr. Ophthalmic drug delivery system
US8012136B2 (en) 2003-05-20 2011-09-06 Optimyst Systems, Inc. Ophthalmic fluid delivery device and method of operation
US8684980B2 (en) 2010-07-15 2014-04-01 Corinthian Ophthalmic, Inc. Drop generating device
US8733935B2 (en) 2010-07-15 2014-05-27 Corinthian Ophthalmic, Inc. Method and system for performing remote treatment and monitoring
US9087145B2 (en) 2010-07-15 2015-07-21 Eyenovia, Inc. Ophthalmic drug delivery
WO2016118941A1 (fr) * 2015-01-23 2016-07-28 William Tan Élément de vaporisation par ultrasons
EP3181242A1 (fr) 2015-12-16 2017-06-21 Idfc Ag Dispositif de dispersion de fluide à ultrasons
US10154923B2 (en) 2010-07-15 2018-12-18 Eyenovia, Inc. Drop generating device
US10639194B2 (en) 2011-12-12 2020-05-05 Eyenovia, Inc. High modulus polymeric ejector mechanism, ejector device, and methods of use
US11325149B2 (en) 2016-01-23 2022-05-10 William Tan Ultrasonic atomizer and cartridge for the dispersal of a liquid
US11938056B2 (en) 2017-06-10 2024-03-26 Eyenovia, Inc. Methods and devices for handling a fluid and delivering the fluid to the eye

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334531A (en) * 1979-06-19 1982-06-15 Bosch-Siemens Hausgerate Gmbh Inhalator
US4790479A (en) * 1984-09-07 1988-12-13 Omron Tateisi Electronics Co. Oscillating construction for an ultrasonic atomizer inhaler
EP0897755A2 (fr) * 1997-08-20 1999-02-24 Fumakilla Limited Appareil piezoélectrique de pulvérisation de liquide et procédé pour repousser ou éliminer les organismes nuisibles
WO2000051747A1 (fr) * 1999-03-05 2000-09-08 S. C. Johnson & Son, Inc. Systeme de commande pour pulveriser des liquides avec un vibrateur piezo-electrique
US6755352B1 (en) * 2003-01-22 2004-06-29 Kohji Toda Bridge-type ultrasonic atomizer
US20040261790A1 (en) * 2003-06-30 2004-12-30 Microlin, L.C. Moving emanators
WO2007104859A1 (fr) * 2006-03-15 2007-09-20 L V M H Recherche Dispositif de pulverisation a element piezoelectrique, et son utilisation en cosmetologie et en parfumerie

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334531A (en) * 1979-06-19 1982-06-15 Bosch-Siemens Hausgerate Gmbh Inhalator
US4790479A (en) * 1984-09-07 1988-12-13 Omron Tateisi Electronics Co. Oscillating construction for an ultrasonic atomizer inhaler
EP0897755A2 (fr) * 1997-08-20 1999-02-24 Fumakilla Limited Appareil piezoélectrique de pulvérisation de liquide et procédé pour repousser ou éliminer les organismes nuisibles
EP1382399A1 (fr) * 1997-08-20 2004-01-21 Fumakilla Limited Procédé pour repousser ou éliminer les organismes nuisibles
WO2000051747A1 (fr) * 1999-03-05 2000-09-08 S. C. Johnson & Son, Inc. Systeme de commande pour pulveriser des liquides avec un vibrateur piezo-electrique
US6755352B1 (en) * 2003-01-22 2004-06-29 Kohji Toda Bridge-type ultrasonic atomizer
US20040261790A1 (en) * 2003-06-30 2004-12-30 Microlin, L.C. Moving emanators
WO2007104859A1 (fr) * 2006-03-15 2007-09-20 L V M H Recherche Dispositif de pulverisation a element piezoelectrique, et son utilisation en cosmetologie et en parfumerie

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8936021B2 (en) 2003-05-20 2015-01-20 Optimyst Systems, Inc. Ophthalmic fluid delivery system
US7883031B2 (en) 2003-05-20 2011-02-08 James F. Collins, Jr. Ophthalmic drug delivery system
US8012136B2 (en) 2003-05-20 2011-09-06 Optimyst Systems, Inc. Ophthalmic fluid delivery device and method of operation
US8545463B2 (en) 2003-05-20 2013-10-01 Optimyst Systems Inc. Ophthalmic fluid reservoir assembly for use with an ophthalmic fluid delivery device
US7547004B2 (en) * 2006-12-05 2009-06-16 Tsang-Hung Hsu Ergonomically operating portable humidifier
WO2008107636A1 (fr) * 2007-03-07 2008-09-12 Reckitt Benckiser (Uk) Limited Dispositif de traitement autonome pour lave-vaisselle
EP2100670A1 (fr) 2008-03-12 2009-09-16 Microflow Engineering SA Procédé et dispositif pour évaporer des liquides à haute viscosité avec un minimum de rechange
EP2100671A1 (fr) 2008-03-12 2009-09-16 EP Systems SA Procédé et dispositif pour nébuliser des liquides à haute viscosité avec un minimum de rechange
US8011599B2 (en) 2008-03-12 2011-09-06 Ep Systems Sa Microflow Division Method and device for nebulising high-viscosity liquids with minimal fallback
US8684980B2 (en) 2010-07-15 2014-04-01 Corinthian Ophthalmic, Inc. Drop generating device
US8733935B2 (en) 2010-07-15 2014-05-27 Corinthian Ophthalmic, Inc. Method and system for performing remote treatment and monitoring
US9087145B2 (en) 2010-07-15 2015-07-21 Eyenovia, Inc. Ophthalmic drug delivery
US11839487B2 (en) 2010-07-15 2023-12-12 Eyenovia, Inc. Ophthalmic drug delivery
US11398306B2 (en) 2010-07-15 2022-07-26 Eyenovia, Inc. Ophthalmic drug delivery
US11011270B2 (en) 2010-07-15 2021-05-18 Eyenovia, Inc. Drop generating device
US10839960B2 (en) 2010-07-15 2020-11-17 Eyenovia, Inc. Ophthalmic drug delivery
US10073949B2 (en) 2010-07-15 2018-09-11 Eyenovia, Inc. Ophthalmic drug delivery
US10154923B2 (en) 2010-07-15 2018-12-18 Eyenovia, Inc. Drop generating device
US10639194B2 (en) 2011-12-12 2020-05-05 Eyenovia, Inc. High modulus polymeric ejector mechanism, ejector device, and methods of use
US10646373B2 (en) 2011-12-12 2020-05-12 Eyenovia, Inc. Ejector mechanism, ejector device, and methods of use
CN107206198A (zh) * 2015-01-23 2017-09-26 陈苇濂 超声波蒸发元件
US20160213866A1 (en) * 2015-01-23 2016-07-28 William Tan Ultrasonic vaporizing element
WO2016118941A1 (fr) * 2015-01-23 2016-07-28 William Tan Élément de vaporisation par ultrasons
EP3181242A1 (fr) 2015-12-16 2017-06-21 Idfc Ag Dispositif de dispersion de fluide à ultrasons
US11325149B2 (en) 2016-01-23 2022-05-10 William Tan Ultrasonic atomizer and cartridge for the dispersal of a liquid
US11938056B2 (en) 2017-06-10 2024-03-26 Eyenovia, Inc. Methods and devices for handling a fluid and delivering the fluid to the eye

Also Published As

Publication number Publication date
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