EP2364402B1 - Piezoelektrische pumpe für ein elektrisches haushaltsgerät - Google Patents

Piezoelektrische pumpe für ein elektrisches haushaltsgerät Download PDF

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Publication number
EP2364402B1
EP2364402B1 EP09774720.8A EP09774720A EP2364402B1 EP 2364402 B1 EP2364402 B1 EP 2364402B1 EP 09774720 A EP09774720 A EP 09774720A EP 2364402 B1 EP2364402 B1 EP 2364402B1
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EP
European Patent Office
Prior art keywords
piezoelectric pump
pump
mobile wall
piezoelectric
spring clip
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.)
Not-in-force
Application number
EP09774720.8A
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English (en)
French (fr)
Other versions
EP2364402A1 (de
Inventor
Andrea Lukas
Björn SCHEVE
Matthias Hahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rowenta Werke GmbH
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Rowenta Werke GmbH
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Publication date
Application filed by Rowenta Werke GmbH filed Critical Rowenta Werke GmbH
Publication of EP2364402A1 publication Critical patent/EP2364402A1/de
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Publication of EP2364402B1 publication Critical patent/EP2364402B1/de
Not-in-force legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04—Pumps having electric drive
    • F04B43/043—Micropumps
    • F04B43/046—Micropumps with piezoelectric drive
    • 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
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/003—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by piezoelectric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/09—Pumps having electric drive
    • F04B43/095—Piezoelectric drive

Definitions

  • the present invention relates to a piezoelectric pump for household appliances and relates more particularly to a piezoelectric pump comprising a movable wall interposed between a first housing element, defining a pumping chamber with the movable wall, and a second housing element apply against the periphery of the movable wall to hold the latter in position.
  • first and second housing elements are fixed to one another by gluing, screwing or ultrasonic welding.
  • Such assembly means have the disadvantage of allowing a certain relaxation of the elements of the pump over time, particularly under the effect of temperature variations. This phenomenon is accentuated when the elements of the piezoelectric pump are made of plastic material.
  • EP1177802 discloses an apparatus for dispensing a medicament comprising a pressurized reservoir formed of two flexible walls trapped between two spring washers which press on the flexible walls to pressurize the reservoir. Accordingly, this document does not disclose not a piezoelectric pump but only a device for dispensing a medicament comprising a pressurized reservoir whose output is closed by a controlled valve by means of a piezoelectric element.
  • an object of the present invention is to overcome these disadvantages by providing a piezoelectric pump in which the assembly of the pump elements provides a pumping chamber having stable performance over time.
  • the subject of the invention is a piezoelectric pump for a household appliance comprising a movable wall interposed between a first housing element, defining a pumping chamber with the mobile wall, and a second housing element applying a pressure against the periphery.
  • the movable wall to maintain the latter in position, the movable wall having an outer face in contact with a piezoelectric actuator designed to move the movable wall to cause a periodic volume variation of the pumping chamber under the action of the piezoelectric actuator, characterized in that the first housing element and the second housing element are held under stress against one another by means of an elastic clip, the elastic clip exerting a pressure tending to compress the first housing member on the second housing member.
  • a seal is interposed between the movable wall and the first housing element.
  • the second housing element comprises a protruding part coming to bear against the mobile wall facing the seal, the periphery of the movable wall being sandwiched between the seal sealing and the protruding part.
  • the movable wall comprises a lower face covered with at least one electrically insulating adhesive film extending radially beyond the movable wall and having a peripheral edge bonded to the second housing element.
  • the elastic clip comprises a portion exerting pressure on the second housing element, in the zone facing the pumping chamber.
  • the elastic clip comprises at least one end provided with a gripping tab.
  • the elastic clip is constituted by a metal strip with a spring effect.
  • the first and second housing elements comprise complementary shapes ensuring their positioning. relative when assembling the pump by means of the elastic clip.
  • the piezoelectric pump comprises a third element covering the first element opposite the second element, the third element comprising an intake duct and a discharge duct respectively in communication with an orifice of inlet and an outlet port of the pumping chamber.
  • the first and third elements comprise complementary shapes ensuring their relative positioning during assembly of the piezoelectric pump by means of the elastic clip.
  • the elastic clip is supported on the second and third elements.
  • the invention also relates to an iron having means for supplying water to a spray nozzle or a vaporization chamber, characterized in that the supply means comprise a piezoelectric pump as previously described.
  • the figure 1 schematically represents an iron 100 having a heating soleplate 104 comprising a vaporization chamber 103 supplied with water by a piezoelectric pump 101 connected to a reservoir 102.
  • the piezoelectric pump 101 shown separately on the Figures 2 to 4 , comprises a first housing element constituted by a support 1 made of a plastic material reinforced with glass fibers, such as a polyarylamide loaded with 30% glass fibers.
  • the support 1 has a circular central zone 1A defining, with a movable wall 4 disposed opposite, a pumping chamber 5, the movable wall advantageously being constituted by a brass membrane 4 having an outer face facing towards the outside. outside of the pumping chamber 5, on which is fixed a piezoelectric actuator 41 made of ceramic.
  • the support 1 is sandwiched between a second and a third housing element, made of the same material as that used for the support 1, these second and third housing elements being respectively constituted by a cover 2 comprising terminals 23, 24 for the power supply of the piezoelectric actuator 41 and a base 3 for the circulation of the fluid in the pumping chamber 5.
  • the terminals 23 and 24 are respectively in contact with a spring 23A coming into contact with the membrane 4 and a spring 24A coming into contact with the piezoelectric actuator 41, and are powered by an alternating electrical voltage causing a periodic deformation of the piezoelectric actuator 41 in the direction of the increase and then the reduction of the volume of the pumping chamber 5.
  • the supply voltage of the actuator piezoelectric 41 is supplied directly from the home electrical network by means of a power supply circuit, not shown in the figures, without isolation transformer.
  • a power supply circuit of the piezoelectric pump is for example described in the patent application FR 08 01706 .
  • the lower face of the membrane 4 is covered with an insulating film 4A consisting of three layers of material polyester held together by means of an adhesive, according to the solution described in the patent application FR 08 03520 .
  • the base 3 of the pump 101 comprises an intake duct 31 and a discharge duct 32 opening respectively facing an inlet orifice 11 and an outlet orifice 12 passing through the support 1.
  • the inlet and outlet orifices 12 and 12 are advantageously interconnected by a groove 13, of a depth of the order of 1 mm, extending on the upper face of the support 1 and defining a dead volume in the chamber pumping 5.
  • the pumping chamber 5 is delimited laterally by an annular seal 6 disposed in a circular groove 14 formed on the upper face of the support 1, the membrane 4 resting on the seal 6 and having a circular shape of diameter adapted to engage precisely between guide ribs 15A carried by a centering sleeve 15 projecting from the upper face of the support 1.
  • the seal 6 is a four-lobe seal having an inner diameter of the order of 22 mm and a height of about 2 mm.
  • the membrane 4 is held against the seal 6 by means of the cover 2, the latter comprising a lower face provided with a circular rib 21 whose diameter corresponds to the diameter of the seal 6 so that the lower end of the circular rib 21 is pressed against the outer face of the membrane 4, facing the seal 6.
  • the lower end of the circular rib 21 advantageously has a rounded convergent shape.
  • the cover 2 is extended radially beyond the rib 21 by a wall 20 which abuts against the upper end of the centering sleeve 15 when the membrane 4 is pressed against the seal 6, the sleeve of centering 15 and the circular rib 21 being dimensioned such that the membrane 4 is in the immediate vicinity of the upper face of the support 1, for example at a distance of the order of 0.1 mm, when the wall 20 of the lid 2 is in abutment against the centering sleeve 15.
  • the lid 2 is also provided with a circular peripheral skirt 22 extending axially towards the support 1 and the lower end of which compresses an O-ring seal 7 resting against a shoulder 16 of the support 1.
  • This seal The ring has the advantage of providing a second sealing barrier ensuring the confinement of the liquid in the housing of the pump 101 when a leak occurs at the seal 6.
  • the positioning of the cover 2 relative to the support 1 is achieved by means of three positioning pins 15B projecting from the upper end of the centering sleeve 15 of the support 1, these three pins 15B engaging in adapted cavities 20A the lower face of the cover 2, one of the pins 15B having a greater width to allow the engagement of the cover 2 on the support 1 in a single orientation.
  • the positioning of the base 3 on the support 1 is in turn realized by means of bosses 30 carried by the upper face of the base 3 and coming into fit cavities 10 present on the lower face of the support 1, one of the bosses 10 having a larger size to allow the engagement of the base 3 on the support 1 in a single orientation.
  • valves 81, 82 made of a silicone film 8 interposed between the support 1 and the base 3, this film 8 having notches 80 engaging around the bosses 30 to ensure the correct positioning of the film 8 on the base 3 .
  • the valve 81 consisting of a horseshoe-shaped cut facing the inlet orifice 11, closes when the water in the pumping chamber is compressed by the membrane 4 and opens when the piezoelectric actuator 41 is deformed in the direction of increasing the volume of the pumping chamber 5.
  • the valve 82 also constituted by a horseshoe-shaped cut-out facing the outlet orifice 12, opens when water is compressed in the pumping chamber 5 and closes when the piezoelectric actuator 41 becomes deforms in the direction of increasing the volume of the pumping chamber 5.
  • the support 1, the cover 2 and the base 3 are held under stress against each other by means of an elastic clip 9 preferably consisting of a metal strip spring effect, a width of the order 8 mm.
  • the clip 9 has the general shape of a U whose ends curved inwardly form hooks 91 that hook under the base 3, the clip 9 having a central portion 90 exerting pressure on an entire area 2A central of the cover 2, generating a force in the axis of the circular rib 21 bearing on the periphery of the membrane 4.
  • the cover 2 and the base 3 comprise guide ribs 25, 35 on their periphery, these guide ribs 25, 35 delimiting a track in which is engaged the spring clip 9 to ensure a correct positioning of the clip 9.
  • the central zone 2A of the lid has a reinforced rigidity so that the pressure exerted by the staple 9 does not cause the bending of the lid 2 but is integrally transmitted, through the circular rib 21, to the periphery of the membrane 4.
  • the lid 2 has a concave underside in the central zone 2A delimited by the circular rib 21, the lid 2 having a thickness of about 1.4 mm at its center and a thickness of about 2 mm near the circular rib 21.
  • one of the hooks 91 of the clip 9 is extended by an outwardly curved gripping tab 91A which makes it possible to grip the clip 9 and deform the latter to facilitate its insertion or withdrawal. of the clip 9 around the cover 2 and on the base 3.
  • the pump 101 thus produced has the advantage of having a flexible membrane 4, supporting the piezoelectric actuator 41, the periphery of which is subjected to a pressure that is substantially constant over time, the elastic clip 9 keeping the lid 2 constantly under pressure against the support 1 and the seal 6.
  • the pressure exerted by the clip 9 has the advantage of being equitably distributed over the entire periphery of the membrane 4, to obtain optimum performance of the pump 101.
  • a pump provided with such a fastening clip also has the advantage of being quickly assembled or disassembled, in particular for its maintenance.
  • FIGS. 6 to 9 illustrate a piezoelectric pump 200 according to a second particular embodiment of the invention in which the electrical insulation of the pump, and in particular the insulation of the hydraulic part with respect to the portion subjected to an electric potential, has been improved.
  • the pump 200 comprises a support 201 made of fiberglass-filled plastic material having a circular central zone defining, with a brass circular membrane 204 attached to it, a pumping chamber 205.
  • the support 201 is sandwiched between a cover 202, having terminals 223, 224 for the power supply of a piezoelectric actuator 241 fixed on the membrane 204, and a base 203 for the circulation of the fluid in the pumping chamber 205 .
  • the power supply terminals 223 and 224 are electrically connected to the 204 and the piezoelectric actuator 241, and are powered by an AC voltage causing a periodic deformation of the piezoelectric actuator 241 and the flexible membrane 204 in the direction of increasing and then reducing the volume of the chamber pumping 205.
  • the lower face of the membrane 204 is covered with an insulating film 204A consisting of three films in polyester held together by means of an adhesive, as more specifically described in the patent application FR 08 03520 .
  • This insulating film 204A has the shape of a disk having a diameter greater than the diameter of the membrane 204 so that the insulating film 204A has a peripheral portion protruding radially from the membrane 204 about 5 mm.
  • the hydraulic connection of the pump 201 is carried out by means of an intake duct 231 and a discharge duct 232 carried by the base 203, these inlet ducts 231 and discharge pipes 232 opening respectively opposite an inlet orifice 211 and an outlet orifice 212 passing through the support 201.
  • the pumping chamber 205 is delimited laterally by an annular seal 206, similar to the seal 6 described for the first embodiment.
  • the seal 206 is disposed in a circular groove 214 formed on the upper face of the support 201, at the edge of the pumping chamber 205, and on which the periphery of the membrane 204 rests, the latter having a slightly larger diameter. to the diameter of the seal 206.
  • Maintaining the membrane 204 against the seal 206 is formed by means of the cover 202, the latter comprising a lower face provided with a projecting circular rib 221 having a convergent bottom end of rounded shape whose diameter corresponds to the diameter of the seal 206 so that the lower end of the circular rib 221 is applied against the outer face of the membrane 204, facing of the seal 206.
  • the cover 202 extends radially beyond the rib 221 by a wall 220 having successively a second rib 226 and a peripheral skirt 222 extending coaxially towards the support 201.
  • the second rib 226 and the peripheral skirt 222 each comprise a annular lower end on which is glued the peripheral edge of the insulating film 204A so that water can not come into contact with the upper part of the membrane 204 in the event of a leak at the seal 206.
  • the support 201 comprises three centering tabs 215, arranged at 120 ° from each other, projecting radially outwards, these centering tabs 215 having a bent end between which the periphery of the cover 202 engages to ensure the centering of the cover 202 on the support 201.
  • One of the centering tabs 215 advantageously has a larger width and engages in a groove 222A formed at the periphery of the cover 202 to allow the engagement of the cover 202 on the support 201 according to a single orientation.
  • the angular positioning of the base 203 on the support 201 is advantageously achieved by the insertion of the centering tabs 215 into suitable notches 234 present on the peripheral edge of the base 203.
  • a silicone film 208 is interposed between the support 201 and the base 203, the positioning of the film 208 on the base 203 being provided by means of the notches 280 formed at the periphery of the film 208, these notches engaging around the bosses 230.
  • the film 208 has a cutout 282 in the form of a circular arc forming a valve facing the outlet orifice 212 which opens when water is compressed in the pumping chamber 205 and closes when the actuator piezoelectric 241 deforms in the direction of increasing the volume of the pumping chamber 205.
  • the film 208 also comprises a cut 281 in the form of a circular arc facing the inlet orifice 211 of the support 201 forming a valve that closes when the water in the pumping chamber is compressed by the membrane 204 and opens when the piezoelectric actuator 241 deforms in the direction of increasing the volume of the pumping chamber 205.
  • the cutouts 281 and 282 in the form of a circular arc extend angularly less than 180 ° and are oriented in the same direction so that a large strip of material extends between the cuts 281 and 282. , 282.
  • Such a characteristic makes it possible to obtain a good stability of the film at the edges of the cuts 281, 282 by reducing in particular the risk of deformation of the valve during the compression of the film between the support 201 and the base 203.
  • the support 201, the cover 202 and the base 203 are held against each other, under stress, by means of an elastic clip 209 having the form of a spring-acting metal strip engaging between guide ribs 225, 235 formed respectively at the periphery of the cover 202 and the base 203.
  • the clip 209 has the general shape of a U whose ends curved inwardly form hooks 291 that hooks under the base 203, the clip 209 having a central portion 290 exerting axial pressure on a whole. central zone 202A of the cover 202.
  • the central zone 202A of the lid has a reinforced rigidity so that the pressure exerted by the clip 209 does not cause the bending of the cover 202 but is integrally transmitted, through the circular rib 221, to the periphery of the membrane 204.
  • the pump 201 thus produced has the advantage, just like the pump shown in the first embodiment, of having a membrane 204 whose periphery is subjected to a pressure that is substantially constant over time, the elastic clip 209 holding the cover 202 constantly. under pressure against the support 201.
  • the pump according to such an embodiment has the advantage of having an electrical insulation according to the VDE standard in force in Germany.
  • the elastic clip may have a different shape including for example four branches distributed at 90 ° from each other.
  • the electrical insulation of the piezoelectric can be achieved by means of an isolation transformer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Reciprocating Pumps (AREA)

Claims (12)

  1. Piezoelektrische Pumpe (101, 200), die dazu bestimmt ist, ein elektrisches Haushaltsgerät auszurüsten, wobei die piezoelektrische Pumpe (101, 200) eine bewegliche Wand (4, 204) aufweist, die zwischen einem ersten Element des Gehäuses (1, 201), das eine Pumpkammer (5, 205) mit der beweglichen Wand (4, 204) definiert, und einem zweiten Element des Gehäuses (2, 202) angeordnet ist, das einen Druck gegen den Umfang der beweglichen Wand (4, 204) anwendet, um die letztere in der Position zu halten, wobei die bewegliche Wand (4, 204) eine Außenfläche in Kontakt mit einem piezoelektrischen Aktor (41, 241) aufweist, der vorgesehen ist, um die bewegliche Wand (4, 204) zu bewegen, um eine periodische Veränderung des Volumens der Pumpenkammer (5, 205) unter der Wirkung des piezoelektrischen Aktors (41, 241) zu bewirken, dadurch gekennzeichnet, dass das erste Element des Gehäuses (1, 201) und das zweite Element des Gehäuses (2, 202) mit Hilfe einer elastischen Klammer (9, 209) gegeneinander unter Spannung gehalten werden, wobei die elastische Klammer (9, 209) ein Druck ausübt, der darauf abzielt, das erste Element des Gehäuses (1, 201) auf das zweite Element des Gehäuses (2, 202) zu pressen.
  2. Piezoelektrische Pumpe (101, 200) nach Anspruch 1, dadurch gekennzeichnet, dass eine Dichtung (6, 206) zwischen der beweglichen Wand (4, 204) und dem ersten Element des Gehäuses (1, 201) angeordnet ist.
  3. Piezoelektrische Pumpe (101, 200) nach Anspruch 2, dadurch gekennzeichnet, dass das zweite Element des Gehäuses (2, 202) einen hervorstehenden Abschnitt (21, 221) aufweist, der an der beweglichen Wand (4, 204) gegenüber der Dichtung (6, 206) anliegt, wobei der Umfang der beweglichen Wand (4, 204)) zwischen der Dichtung (6, 206) und dem hervorstehenden Abschnitt (21, 221) sandwichartig angeordnet ist.
  4. Piezoelektrische Pumpe (101, 200) nach Anspruch 3, dadurch gekennzeichnet, dass die bewegliche Wand (4, 204) eine untere Fläche aufweist, die mit zumindest einer elektrisch isolierenden Klebefolie bedeckt ist, die sich radial über die bewegliche Wand (4, 204) erstreckt und einen Umfangsrand aufweist, der auf das zweite Element des Gehäuses (2, 202) geklebt ist.
  5. Piezoelektrische Pumpe (101, 200) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die elastische Klammer (9, 209) einen Abschnitt (90, 290) aufweist, der einen Druck auf das zweite Element des Gehäuses (2, 202) in dem Bereich gegenüber der Pumpenkammer (5, 205) ausübt.
  6. Piezoelektrische Pumpe (101) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die elastische Klammer (9) zumindest ein Ende aufweist, das mit einer Grifflasche (91A) versehen ist.
  7. Piezoelektrische Pumpe (101, 200) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die elastische Klammer (9, 209) aus einem Metallband mit einer Federwirkung besteht.
  8. Piezoelektrische Pumpe (101, 200) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das erste und zweite Element des Gehäuses (1, 201, 2, 202) komplementäre Formen aufweisen, um ihre relative Positionierung bei der Montage der Pumpe (101, 200) mittels der elastischen Klammer (9, 209) zu gewährleisten.
  9. Piezoelektrische Pumpe (101, 200) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass sie ein drittes Element (3, 203) umfasst, das das erste Element (1, 201) gegenüber dem zweiten Element (2, 202) abdeckt, wobei das dritte Element (3, 203) eine Einlassleitung (31, 231) und eine Auslassleitung (32, 232) in Verbindung mit einer Einlassöffnung (11, 211) bzw. einer Auslassöffnung (12, 212) der Pumpkammer (5, 205) aufweist.
  10. Piezoelektrische Pumpe (101, 200) nach Anspruch 9, dadurch gekennzeichnet, dass das erste und dritte Element (1, 201, 3, 203) komplementäre Formen aufweisen, die ihre relative Positionierung bei der Montage der piezoelektrischen Pumpe (101, 200) mittels der elastischen Klammer (9, 209) gewährleisten.
  11. Die piezoelektrische Pumpe (101, 200) nach Anspruch 10, dadurch gekennzeichnet, dass die elastische Klammer (9, 209) sich auf dem zweiten und dritten Element (1, 201, 3, 203) abstützt.
  12. Bügeleisen, umfassend Mittel zur Versorgung von einer Sprühdüse oder einer Verdampfungskammer (103) mit Wasser, dadurch gekennzeichnet, dass die Mittel zur Versorgung eine piezoelektrische Pumpe (101, 200) nach einem der Ansprüche 1 bis 11 umfassen.
EP09774720.8A 2008-12-10 2009-11-30 Piezoelektrische pumpe für ein elektrisches haushaltsgerät Not-in-force EP2364402B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0806930A FR2939482B1 (fr) 2008-12-10 2008-12-10 Pompe piezoelectrique pour appareil electromenager
PCT/IB2009/007607 WO2010067157A1 (fr) 2008-12-10 2009-11-30 Pompe piezoelectrique pour appareil electromenager

Publications (2)

Publication Number Publication Date
EP2364402A1 EP2364402A1 (de) 2011-09-14
EP2364402B1 true EP2364402B1 (de) 2017-11-29

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EP09774720.8A Not-in-force EP2364402B1 (de) 2008-12-10 2009-11-30 Piezoelektrische pumpe für ein elektrisches haushaltsgerät

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Country Link
US (1) US8522462B2 (de)
EP (1) EP2364402B1 (de)
CN (1) CN102224342B (de)
ES (1) ES2654045T3 (de)
FR (1) FR2939482B1 (de)
PT (1) PT2364402T (de)
WO (1) WO2010067157A1 (de)

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JP2016200014A (ja) * 2015-04-07 2016-12-01 住友ゴム工業株式会社 ダイアフラムポンプ
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TWI618858B (zh) * 2017-02-24 2018-03-21 研能科技股份有限公司 流體輸送裝置
CN109899327B (zh) * 2017-12-07 2021-09-21 昆山纬绩资通有限公司 气流产生装置
TWI817615B (zh) * 2022-07-18 2023-10-01 研能科技股份有限公司 流體泵浦模組

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Also Published As

Publication number Publication date
EP2364402A1 (de) 2011-09-14
CN102224342B (zh) 2015-04-22
ES2654045T3 (es) 2018-02-12
CN102224342A (zh) 2011-10-19
FR2939482A1 (fr) 2010-06-11
PT2364402T (pt) 2018-01-09
US20110296722A1 (en) 2011-12-08
FR2939482B1 (fr) 2011-01-14
US8522462B2 (en) 2013-09-03
WO2010067157A1 (fr) 2010-06-17

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