EP2364402A1 - Pompe piezoelectrique pour appareil electromenager - Google Patents
Pompe piezoelectrique pour appareil electromenagerInfo
- Publication number
- EP2364402A1 EP2364402A1 EP09774720A EP09774720A EP2364402A1 EP 2364402 A1 EP2364402 A1 EP 2364402A1 EP 09774720 A EP09774720 A EP 09774720A EP 09774720 A EP09774720 A EP 09774720A EP 2364402 A1 EP2364402 A1 EP 2364402A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piezoelectric pump
- movable wall
- elastic clip
- pump
- piezoelectric
- 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
- 238000005086 pumping Methods 0.000 claims abstract description 36
- 230000000737 periodic effect Effects 0.000 claims abstract description 5
- 230000009471 action Effects 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000009834 vaporization Methods 0.000 claims description 4
- 230000008016 vaporization Effects 0.000 claims description 4
- 239000002313 adhesive film Substances 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 28
- 230000008901 benefit Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000010292 electrical insulation Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920006268 silicone film Polymers 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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 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.
- FIG. 1 is a schematic sectional view of an iron equipped with a pump according to a first embodiment of the invention
- FIG. 2 is a sectional view of the piezoelectric pump of the apparatus of FIG. 1;
- FIGS. 3 and 4 are exploded perspective views of the piezoelectric pump of FIG. 2, seen from above and from below;
- Figure 5 is a perspective view of the pump of Figure 2 assembled
- FIG. 6 is a sectional view of a pump according to a second embodiment of the invention
- FIG. 7 is an exploded perspective view of the pump of FIG. 6;
- FIG. 8 and 9 are perspective views of the pump of Figure 6 assembled.
- FIG. 1 schematically represents an iron 100 comprising 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 in isolation in FIGS. 2 to 4, comprises a first housing element constituted by a support 1 made of a glass fiber reinforced plastic material, 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 lower face of the membrane 4 is covered with an insulating film 4A consisting of three layers of material polyester adhered to one another by means of an adhesive, according to the solution described in the patent application FR 08 03520.
- 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 positioning of the cover 2 with respect to the support 1 is carried out 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 coming from engage in cavities 20A adapted from the underside 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.
- 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 cover 2 has a concave lower face in the central zone 2A delimited by the circular rib 21, the cover 2 having a thickness of about 1.4 mm at its center and a thickness of about 2 mm near the circular rib 21.
- 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 part subjected to an electrical potential. , has been improved.
- the pump 200 comprises a support 201 made of glass fiber-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 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.
- 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 lugs 215, arranged at 120 ° from each other, projecting radially outwards, these centering lugs 215 having a bent end between which the periphery of the cover 202 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 engagement of the cover 202 on the support 201 in a single orientation.
- the angular positioning of the base 203 on the support 201 is advantageously achieved by inserting the centering tabs 215 into suitable notches 234 present on the peripheral edge of the base 203.
- 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 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 invention is not limited to the embodiment described and illustrated which has been given by way of example. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
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 true EP2364402A1 (fr) | 2011-09-14 |
EP2364402B1 EP2364402B1 (fr) | 2017-11-29 |
Family
ID=40497686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09774720.8A Not-in-force EP2364402B1 (fr) | 2008-12-10 | 2009-11-30 | Pompe piezoélectrique pour appareil électroménager |
Country Status (7)
Country | Link |
---|---|
US (1) | US8522462B2 (fr) |
EP (1) | EP2364402B1 (fr) |
CN (1) | CN102224342B (fr) |
ES (1) | ES2654045T3 (fr) |
FR (1) | FR2939482B1 (fr) |
PT (1) | PT2364402T (fr) |
WO (1) | WO2010067157A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010038872A1 (de) * | 2010-08-04 | 2012-02-09 | Gardner Denver Thomas Gmbh | Pumpe |
CN102961806B (zh) * | 2012-12-10 | 2014-05-21 | 同济大学 | 医用反馈式柱状压电自动微量注射器 |
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 |
DE102016115016A1 (de) * | 2016-08-12 | 2018-02-15 | Plan Optik Ag | Mikropumpe und Verfahren zur Herstellung einer Mikropumpe |
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 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2504493A (en) * | 1945-05-21 | 1950-04-18 | Milton L Brownshield | Piezoelectric cell |
US4420706A (en) * | 1979-01-15 | 1983-12-13 | Molex Incorporated | Connector assembly for a piezoelectric transducer |
US4545561A (en) * | 1982-07-30 | 1985-10-08 | Mcdonnell Douglas Corporation | Piezoelectric valve operator |
US4648807A (en) * | 1985-05-14 | 1987-03-10 | The Garrett Corporation | Compact piezoelectric fluidic air supply pump |
FR2583584B1 (fr) * | 1985-06-14 | 1987-09-18 | Ecole Nale Sup Meca Microtechn | Dispositif de support d'un resonateur piezoelectrique a l'interieur d'un boitier |
JPS62142597A (ja) * | 1985-12-17 | 1987-06-25 | 松下電器産業株式会社 | スチ−ムアイロン |
GB2253013B (en) * | 1991-01-25 | 1994-03-09 | Bespak Plc | Pump apparatus for biomedical use |
US5787614A (en) * | 1993-03-30 | 1998-08-04 | Rowenta-Werke Gmbh | Electric steam iron with aerosol sprayer |
US6785989B2 (en) * | 2000-03-31 | 2004-09-07 | The Procter & Gamble Company | Methods and apparatus for removal of wrinkles from fabrics |
US6589229B1 (en) * | 2000-07-31 | 2003-07-08 | Becton, Dickinson And Company | Wearable, self-contained drug infusion device |
US6450419B1 (en) * | 2000-10-27 | 2002-09-17 | S.C. Johnson & Son, Inc. | Self contained liquid atomizer assembly |
US6843430B2 (en) * | 2002-05-24 | 2005-01-18 | S. C. Johnson & Son, Inc. | Low leakage liquid atomization device |
US20070263887A1 (en) * | 2006-05-15 | 2007-11-15 | Adaptivenergy, Llc | Vibration amplification system for piezoelectric actuators and devices using the same |
US8764425B2 (en) * | 2009-02-12 | 2014-07-01 | Picolife Technologies, Llc | Mold for making a membrane for use with a flow control system for a micropump |
-
2008
- 2008-12-10 FR FR0806930A patent/FR2939482B1/fr not_active Expired - Fee Related
-
2009
- 2009-11-30 EP EP09774720.8A patent/EP2364402B1/fr not_active Not-in-force
- 2009-11-30 PT PT97747208T patent/PT2364402T/pt unknown
- 2009-11-30 ES ES09774720.8T patent/ES2654045T3/es active Active
- 2009-11-30 US US13/139,071 patent/US8522462B2/en not_active Expired - Fee Related
- 2009-11-30 CN CN200980146709.XA patent/CN102224342B/zh active Active
- 2009-11-30 WO PCT/IB2009/007607 patent/WO2010067157A1/fr active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2010067157A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2364402B1 (fr) | 2017-11-29 |
CN102224342B (zh) | 2015-04-22 |
US8522462B2 (en) | 2013-09-03 |
WO2010067157A1 (fr) | 2010-06-17 |
FR2939482B1 (fr) | 2011-01-14 |
PT2364402T (pt) | 2018-01-09 |
FR2939482A1 (fr) | 2010-06-11 |
ES2654045T3 (es) | 2018-02-12 |
US20110296722A1 (en) | 2011-12-08 |
CN102224342A (zh) | 2011-10-19 |
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