EP1341615A1 - Ultraschallzerstäuber - Google Patents
UltraschallzerstäuberInfo
- Publication number
- EP1341615A1 EP1341615A1 EP01991768A EP01991768A EP1341615A1 EP 1341615 A1 EP1341615 A1 EP 1341615A1 EP 01991768 A EP01991768 A EP 01991768A EP 01991768 A EP01991768 A EP 01991768A EP 1341615 A1 EP1341615 A1 EP 1341615A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ultrasonic atomizer
- substrate
- piezoelectric vibrator
- atomizer according
- substrate board
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F75/00—Hand irons
- D06F75/08—Hand irons internally heated by electricity
- D06F75/22—Hand irons internally heated by electricity with means for supplying liquid to the article being ironed
Definitions
- the invention relates to an ultrasonic atomizer for generating a liquid spray.
- Ultrasonic atomizers are used when high demands are made of the spray mist to be produced, particularly with regard to the most homogeneous distribution possible or the best possible meterability. Possible areas of application are e.g. the use in painting devices, air humidifiers, medical devices - in which a medically effective aerosol is to be generated in a certain dosage - but also household devices, such as Irons, in which ultrasonic atomizers are used to produce particularly good work results in order to produce a water mist that supports the ironing process.
- EP 1 005 917 AI describes an inhaler with an ultrasonic atomizer. This consists of a first and a second substrate, as well as a vibration generator.
- the two substrates and the vibrator are essentially three-dimensional, specially designed bodies.
- the first substrate in particular, which contains the outlet device for the atomized liquid, is very good elaborately designed to optimally support the excited main vibration mode.
- the disadvantage here is that the manufacture of an ultrasonic atomizer designed in this way is complex because, in particular, complicated three-dimensional substrate bodies have to be produced, which have to have a very specific, precisely maintained geometry in order to ensure the success of the atomization.
- EP 0 689 879 A1 describes an ultrasonic atomizer which is particularly suitable for medical applications in which a relatively small amount of liquid has to be atomized.
- a specially designed coupling body is provided in particular in order to ensure good wetting with as little medicament liquid as possible to be atomized.
- the invention is therefore based on the object of specifying an ultrasonic atomizer which is simple to manufacture, has a favorable radiation behavior with respect to the spray to be generated and covers a wide range of uses.
- the object is achieved by an ultrasonic atomizer with a piezoelectric vibrator, in which the piezoelectric vibrator is designed as a whole-surface panel and is connected to a substrate panel.
- the ultrasonic atomizer according to the invention is simple to produce, since no special manufacturing steps are required to manufacture the essential components thereof, in which one or more components of the atomizer is given a complicated three-dimensional geometric shape.
- the area of application of the ultrasonic atomizer according to the invention is not restricted to applications in which a relatively small amount of liquid is to be atomized.
- a plate in connection with the ultrasonic atomizer according to the invention, should be understood to mean a plate-like structure which has two flat, mutually parallel interfaces. Furthermore, this plate-like structure should have a small thickness compared to its length.
- a board is called the whole surface if on one of the interfaces two opposite edge points with respect to the center of gravity of the board can always be connected by a straight line, the lines lying completely in the respective area. Minor irregularities at the edge of the respective interface should not be taken into account.
- the substrate board advantageously has at least one recess.
- the targeted geometrical design of the recess in the substrate board makes it possible to excite defined oscillation modes of the structure consisting of a piezoelectric oscillator and the associated substrate board.
- the working frequency of the ultrasonic atomizer in a frequency range far from the hearing limit in order to avoid acoustic impairments during operation.
- the variation in the size and geometrical shape of the recess in the substrate board also allows the size of the liquid droplets formed during the atomization process to be influenced in a targeted manner. Compared to the variation of the geometry of the piezoelectric vibrator, the variation of the geometry of the recess in the substrate plate represents a technically easy task.
- the cut-out advantageously extends over the geometrical center of gravity of the substrate board in the case of an elliptical, circular or regular polynomial cross section of the substrate board, ie over the center point. This makes adaptation to the desired vibration mode particularly easy.
- the piezoelectric vibrator and / or the substrate plate are designed as at least essentially round plates.
- the vibrations along the surface of the piezoelectric vibrator are particularly homogeneous.
- Both the piezoelectric vibrator and the substrate plate are advantageously designed as round plates, the substrate plate having a central hole.
- the symmetry properties of the constituents involved are particularly good and complementary.
- a central hole can be easily made as a recess in the substrate board.
- the substrate board is made of steel.
- Steel is a material that can be easily procured or manufactured. Furthermore, a large number of simple and easy processing options for steel are known.
- the piezoelectric transducer is advantageously glued to the substrate board, in particular the transducer and substrate board are glued to one another over a large area.
- An adhesive connection is easy to produce and has the advantage in the ultrasonic atomizer according to the invention that, with a distribution of the adhesive layer that is as homogeneous as possible in comparison with a point connection, the vibrations of the piezoelectric vibrator connected to the substrate board are little impaired.
- the substrate board has at least one hole and this is closed by at least one aid.
- the tool in this case has a thickness which is significantly below the thickness of the 'substrate panel.
- Closing the hole in the substrate board by means of an aid has the advantage that the heat of the piezoelectric vibrator, which arises especially during operation without liquid, can be dissipated more easily, since the heat is transferred to the aid which is in contact with the piezoelectric vibrator spread over its surface. If the surface of the aid is at least somewhat larger than the cross section of the hole, the heat supply is improved since the surface of the aid is directly connected to the environment. When operating with liquid, the aid also offers the advantage of a corrosion Protection of the piezoelectric vibrator when the liquid to be atomized is supplied from the side of the substrate plate facing away from the vibrator. It then no longer comes into direct contact with the surface of the piezoelectric vibrator.
- the aid is advantageously a plastic film and / or a lacquer and / or a metal film.
- the ultrasonic atomizer is advantageously used in an iron to generate a spray.
- FIG. 1 shows a plan view of a piezoelectric vibrator which is connected to a substrate board
- FIG. 2 shows a side view of the piezoelectric vibrator shown in FIG. 1 connected to a substrate board
- FIG. 3 shows a longitudinal section through an ultrasonic atomizer
- FIG. 4 shows an exploded drawing of an electric iron with an ultrasonic atomizer.
- the substrate board 12 has a central hole as a recess 14. Both the piezoelectric vibrator 10 and the substrate plate 12 are designed in this embodiment as round plates.
- the piezoelectric vibrator 10 and the substrate board 12 form a sandwich arrangement and are preferably adhesively bonded to one another.
- the liquid to be atomized is this sandwich arrangement on one not shown in FIG 1 way can be supplied.
- the substrate board 12 advantageously has through openings 16 through which the liquid to be atomized or already atomized can pass during operation of the ultrasonic atomizer.
- the recess 14 of the substrate board 12 can be in its geometric sizes such as Length, width, area or diameter are specifically designed so that the unit consisting of piezoelectric vibrator 10 and substrate plate 12, which is excited via an excitation device, not shown, vibrates at a desired operating frequency.
- FIG. 2 shows a side view of FIG. 1 along the section II-II.
- the passage openings 16 are covered by a perforated film 18, which in the present exemplary embodiment is designed as a perforated annular disk.
- the holes of the perforated film 18, not shown in detail, preferably have a diameter of approximately 50 ⁇ m. The purpose of these holes is that no liquid can pass through them if the ultrasonic atomizer is not actuated, that is, the piezoelectric vibrator is not excited.
- the perforated film 18 is preferably glued flat to the substrate board 12.
- FIG. 3 shows an ultrasonic atomizer 19. This is connected to a tank housing 29, which consists of two rooms (30, 32) separated by a partition 31.
- a tank housing 29 which consists of two rooms (30, 32) separated by a partition 31.
- the ultrasonic atomizer 16 When the ultrasonic atomizer 16 is operating, there is liquid 34 in both rooms.
- the liquid in the working space 32 is that which is used for atomization the next time an actuating device of the ultrasonic atomizer 16, not shown, is actuated.
- a particularly good atomization result is obtained when the pressure in the liquid is as evenly distributed as possible in the working space 32.
- liquid can be removed from the storage space with the aid of the conveying device 33, which is preferably designed as a pump co OJ t MP 1 P 1
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Special Spraying Apparatus (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Surgical Instruments (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01991768A EP1341615B1 (de) | 2000-12-13 | 2001-11-29 | Ultraschallzerstäuber |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00127359A EP1214986A1 (de) | 2000-12-13 | 2000-12-13 | Ultraschallzerstäuber |
EP00127359 | 2000-12-13 | ||
EP01991768A EP1341615B1 (de) | 2000-12-13 | 2001-11-29 | Ultraschallzerstäuber |
PCT/EP2001/013983 WO2002047828A1 (de) | 2000-12-13 | 2001-11-29 | Ultraschallzerstäuber |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1341615A1 true EP1341615A1 (de) | 2003-09-10 |
EP1341615B1 EP1341615B1 (de) | 2004-06-16 |
Family
ID=8170658
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00127359A Withdrawn EP1214986A1 (de) | 2000-12-13 | 2000-12-13 | Ultraschallzerstäuber |
EP01991768A Expired - Lifetime EP1341615B1 (de) | 2000-12-13 | 2001-11-29 | Ultraschallzerstäuber |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00127359A Withdrawn EP1214986A1 (de) | 2000-12-13 | 2000-12-13 | Ultraschallzerstäuber |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040256482A1 (de) |
EP (2) | EP1214986A1 (de) |
JP (1) | JP2004515353A (de) |
AT (1) | ATE269167T1 (de) |
DE (1) | DE50102639D1 (de) |
WO (1) | WO2002047828A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE463304T1 (de) | 2002-08-02 | 2010-04-15 | Pari Pharma Gmbh | Vorrichtung zur erzeugung von flüssigkeitströpfchen |
US7517568B2 (en) * | 2004-03-23 | 2009-04-14 | The Clorox Company | Packaging for dilute hypochlorite |
DE602004030544D1 (de) * | 2004-06-09 | 2011-01-27 | Microflow Eng Sa | Verbessertes modulares Flüssigkeitssprühsystem |
US20060251784A1 (en) * | 2005-05-03 | 2006-11-09 | Sells Joel M | Method for cooking meat using steam |
US20060251785A1 (en) | 2005-05-06 | 2006-11-09 | Stefania Fraccon | Method for cooking food using steam |
US20070227930A1 (en) * | 2006-03-28 | 2007-10-04 | Bromberg Steven E | Antimicrobial Product Combination |
US7867534B2 (en) | 2006-10-18 | 2011-01-11 | Whirlpool Corporation | Cooking appliance with steam generator |
US7789278B2 (en) * | 2007-04-12 | 2010-09-07 | The Clorox Company | Dual chamber aerosol container |
US8207477B2 (en) | 2007-11-26 | 2012-06-26 | Whirlpool Corporation | Method for cooking vegetables using steam |
EP2418318A1 (de) * | 2010-08-12 | 2012-02-15 | Koninklijke Philips Electronics N.V. | Bügeleisen mit Bekleidungsbefeuchtung mittels Flüssigkeit |
GB2485553B (en) * | 2010-11-17 | 2014-01-22 | Richards Morphy N I Ltd | Electric iron with nozzle for water mist |
CA2834171C (en) | 2011-05-13 | 2019-07-30 | Unilever Plc | Spraying device |
CN102995370A (zh) * | 2012-10-30 | 2013-03-27 | 吴江新劲纺织有限公司 | 一种快速熨烫装置 |
CA159445S (en) | 2014-09-26 | 2015-06-09 | Richards Morphy N I Ltd | Iron |
JP2021520298A (ja) * | 2018-04-03 | 2021-08-19 | ▲広▼▲東▼▲東▼▲陽▼光▲薬▼▲業▼有限公司 | 微多孔霧化シート |
WO2023077295A1 (zh) * | 2021-11-03 | 2023-05-11 | 深圳摩尔雾化健康医疗科技有限公司 | 雾化装置及雾化器 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2855244A (en) * | 1955-06-03 | 1958-10-07 | Bendix Aviat Corp | Sonic liquid-spraying and atomizing apparatus |
SE349676B (de) * | 1971-01-11 | 1972-10-02 | N Stemme | |
AU553251B2 (en) * | 1981-10-15 | 1986-07-10 | Matsushita Electric Industrial Co., Ltd. | Arrangement for ejecting liquid |
US4545561A (en) * | 1982-07-30 | 1985-10-08 | Mcdonnell Douglas Corporation | Piezoelectric valve operator |
JPS61259779A (ja) * | 1985-05-14 | 1986-11-18 | Matsushita Electric Ind Co Ltd | 超音波霧化装置 |
DE3616713A1 (de) * | 1986-05-20 | 1987-11-26 | Siemens Ag | Ultraschall-mhz-schwinger, insbesondere zur fluessigkeitszerstaeubung |
ATE131421T1 (de) * | 1991-12-04 | 1995-12-15 | The Technology Partnership Plc | Vorrichtung und verfahren zur erzeugung von fluessigkeitstroepfchen |
IT1271969B (it) * | 1993-03-04 | 1997-06-10 | Mario Bonzi | Dispositivo per la umidificazione ed ionizzazione dell'aria |
GB9412669D0 (en) * | 1994-06-23 | 1994-08-10 | The Technology Partnership Plc | Liquid spray apparatus |
JPH0824739A (ja) | 1994-06-29 | 1996-01-30 | Siemens Ag | 超音波噴霧器 |
DE19735214C2 (de) | 1996-08-24 | 1998-07-09 | Rowenta Werke Gmbh | Elektrisches Bügeleisen mit einer Bügelsohle |
DE69933840T2 (de) | 1998-12-01 | 2007-09-06 | Microflow Engineering S.A. | Inhalator mit Ultraschallzerstäuber dessen Sprühöffnungen den Maximalamplituden eines stehenden Wellenmusters überlagert sind |
GB9903433D0 (en) * | 1999-02-15 | 1999-04-07 | The Technology Partnership Plc | Droplet generation method and device |
AU760096B2 (en) * | 1999-03-08 | 2003-05-08 | S.C. Johnson & Son, Inc. | Improved attachment method for piezoelectric elements |
FR2816963B1 (fr) * | 2000-11-22 | 2003-01-24 | Rowenta Werke Gmbh | Fer a repasser sans cordon avec atomiseur d'eau piezo-electrique |
-
2000
- 2000-12-13 EP EP00127359A patent/EP1214986A1/de not_active Withdrawn
-
2001
- 2001-11-29 WO PCT/EP2001/013983 patent/WO2002047828A1/de active IP Right Grant
- 2001-11-29 JP JP2002549390A patent/JP2004515353A/ja not_active Withdrawn
- 2001-11-29 DE DE50102639T patent/DE50102639D1/de not_active Expired - Lifetime
- 2001-11-29 EP EP01991768A patent/EP1341615B1/de not_active Expired - Lifetime
- 2001-11-29 AT AT01991768T patent/ATE269167T1/de not_active IP Right Cessation
-
2003
- 2003-06-13 US US10/461,912 patent/US20040256482A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0247828A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002047828A1 (de) | 2002-06-20 |
JP2004515353A (ja) | 2004-05-27 |
DE50102639D1 (de) | 2004-07-22 |
EP1341615B1 (de) | 2004-06-16 |
EP1214986A1 (de) | 2002-06-19 |
US20040256482A1 (en) | 2004-12-23 |
ATE269167T1 (de) | 2004-07-15 |
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