EP2321457A1 - Appareil electromenager comportant une pompe piezoelectrique - Google Patents
Appareil electromenager comportant une pompe piezoelectriqueInfo
- Publication number
- EP2321457A1 EP2321457A1 EP09797554A EP09797554A EP2321457A1 EP 2321457 A1 EP2321457 A1 EP 2321457A1 EP 09797554 A EP09797554 A EP 09797554A EP 09797554 A EP09797554 A EP 09797554A EP 2321457 A1 EP2321457 A1 EP 2321457A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- appliance according
- pumping chamber
- piezoelectric actuator
- pump
- 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 17
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003063 flame retardant Substances 0.000 claims abstract description 8
- 239000012777 electrically insulating material Substances 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 239000012528 membrane Substances 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229920006267 polyester film Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 239000003522 acrylic cement Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000012945 sealing adhesive Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000009834 vaporization Methods 0.000 description 6
- 230000008016 vaporization Effects 0.000 description 6
- 239000002313 adhesive film Substances 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- D06F75/18—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 the water being fed slowly, e.g. drop by drop, from the reservoir to a steam generator
-
- 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
Definitions
- the present invention relates to a household appliance equipped with a piezoelectric pump and relates more particularly to a household appliance in which the piezoelectric actuator is electrically powered from the mains voltage, without using a transformer. isolation.
- the fact of bringing a layer of insulating material on the metal membrane has the disadvantage of reducing the performance of the pump by limiting the vibration amplitude of the membrane.
- This problem is even more important when the excitation voltage of the piezoelectric actuator is relatively low, for example less than 120 V, which is particularly the case when the pump is powered from the voltage of the home network in certain countries. , such as the USA.
- the standards in force in certain countries, and in particular the UL standards in the USA impose additional constraints for the construction of the piezoelectric pump. Consequently, those skilled in the art are faced with an important technical problem when choosing the insulating material to be reported on the metal membrane.
- an object of the present invention is to provide an appliance having a piezoelectric pump supplied from the voltage of the domestic electrical network, without the interposition of a transformer. isolated, which can work with satisfactory performance in most countries, especially in the USA, where the supply voltage is low and the device must comply with UL safety standards.
- the subject of the invention is an appliance comprising a pump provided with a pumping chamber comprising a movable wall formed by a membrane of electrically conductive material having an internal face, oriented towards the inside of the pumping chamber. , covered with at least one layer of electrically insulating material, and an external surface in contact with a piezoelectric actuator designed to move the membrane and discharge fluid from the pumping chamber by changing the volume of the pumping chamber under the action of the piezoelectric actuator, characterized in that the piezoelectric actuator is fed from the voltage of a domestic electrical network, without the interposition of an isolating transformer, and in that the inner face of the metal diaphragm is covered with at least a first electrically insulating layer having flame retardant properties and two additional layers electrically insulating resins each having a thickness smaller than the thickness of the first insulating layer.
- flame retardant properties is meant a material for retarding the propagation of flames.
- the first layer is constituted by an adhesive tape comprising a polyester film held on the surface of the metal membrane by means of a fireproof acrylic adhesive.
- the polyester film of the first layer has a thickness of the order of 60 microns.
- a first layer will for example consist of a layer of adhesive tape with flame retardant properties sold by the company 3M under the reference commercial 1350.
- the two additional electrically insulating layers are constituted by adhesive tapes comprising a polyester film held by a heat-sealing adhesive.
- the polyester film of the two additional layers has a thickness of about 20 microns.
- These two additional layers may for example be constituted by an adhesive tape sold by the company 3M under the commercial reference 74.
- the apparatus is an apparatus for the treatment of laundry.
- the pump is used to send water to a vaporization chamber for the production of steam.
- the apparatus is an iron.
- FIG. 1 is a schematic sectional view of the apparatus according to a particular embodiment of the invention
- FIG. 2 is a sectional view of the piezoelectric pump of the apparatus of FIG. 1;
- FIG. 3 is an enlarged partial view of the pump of FIG.
- FIG. 1 shows an iron 1 comprising a piezoelectric pump 10 connected on the one hand to a tank 2 and on the other hand to a vaporization chamber 3, the vaporization chamber 3 being included in a heating soleplate 4 provided with openings for vapor diffusion, no represented in the figure.
- the piezoelectric pump 10 comprises a pumping chamber 11, advantageously circular, comprising a movable bottom wall formed by a flexible membrane 12 made of brass.
- the membrane 12 has an inner face facing the pumping chamber 11 and has an outer face on which is fixed a piezoelectric actuator 13 ceramic.
- the pumping chamber 11 comprises an upper wall provided with an intake duct 14 connected to the tank 2 and a discharge duct 15 connected to the vaporization chamber 3.
- the piezoelectric pump 10 comprises a power supply terminal 18 attached to the membrane 12 and a power supply terminal 19 fixed on the piezoelectric actuator 13.
- the pump 10 is supplied at its terminals 18, 19 by an AC supply voltage causing a periodic deformation of the piezoelectric actuator 13 and therefore the flexible membrane 12 in the direction of the increase and then the reduction of the volume of the pumping chamber 11.
- the supply voltage of the piezoelectric actuator 13 is supplied directly from the domestic electrical network by means of a supply circuit, not shown in the figures, without isolation transformer.
- a supply circuit of the piezoelectric pump is for example described in the patent application FR 08 0176 filed by the applicant.
- the discharge duct 15 comprises, in a manner known per se, a non-return valve 17 which closes and prevents the suction of the water present downstream of the valve 17 when the piezoelectric actuator is deformed in the direction of the increase. the volume of the pumping chamber 11.
- the intake duct 14 also comprises a non-return valve 16 which opens and thus allows the water present in the intake duct 14, coming from the tank 2, to In reverse, when the piezoelectric actuator 13 is deformed so as to reduce the volume of the pumping chamber 11, the valve 16 of the intake duct 14 closes and in the same direction. time, the flap 17 of the duct evacuation 15 opens. Thus, the water will pass from the pumping chamber 11 to the vaporization chamber 3.
- the internal face of the flexible membrane 12 is covered with three electrically insulating layers 21, 22, 23 bonded to one another, each layer having a dielectric withstand greater than 3000 V.
- the first layer 21, coming into contact with the inner face, is advantageously constituted by a polyester adhesive film with a thickness of the order of 60 ⁇ m associated with a flame-retardant acrylic adhesive as sold by the company 3M under the reference 1350
- a first layer 21 has the advantage of having a dielectric strength greater than 3000 V and flame retardant properties according to the UL R / C OANZ2 standard in force in the USA.
- a layer 21 has the disadvantage of having a large thickness which increases the rigidity of the metal membrane and reduces the performance of the pump so that the use of three layers of this insulation would make the pump 10 inoperative or inefficient .
- the two additional layers 22, 23, glued over the first layer consist of polyester adhesive films of smaller thickness, of the order of 20 ⁇ m, having a dielectric strength greater than 3000. V but not possessing flame retardant properties.
- the two additional layers 22, 23 consist of adhesive films sold by the company 3M under the reference 74.
- Such a piezoelectric pump 10 has the advantage of maintaining sufficient performance to feed the vaporization chamber 3 with a flow rate sufficient to produce steam with a constant flow rate of the order of 40 g / min.
- the flexible membrane may be made of another metallic material than brass.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Irons (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL09797554T PL2321457T3 (pl) | 2008-06-24 | 2009-06-19 | Urządzenie elektryczne gospodarstwa domowego mające piezoelektryczną pompę |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0803520A FR2932822B1 (fr) | 2008-06-24 | 2008-06-24 | Appareil electromenager comportant une pompe piezoelectrique |
| PCT/FR2009/000739 WO2010007227A1 (fr) | 2008-06-24 | 2009-06-19 | Appareil electromenager comportant une pompe piezoelectrique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2321457A1 true EP2321457A1 (fr) | 2011-05-18 |
| EP2321457B1 EP2321457B1 (fr) | 2012-08-15 |
Family
ID=40394506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09797554A Not-in-force EP2321457B1 (fr) | 2008-06-24 | 2009-06-19 | Appareil electromenager comportant une pompe piezoelectrique |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8641388B2 (fr) |
| EP (1) | EP2321457B1 (fr) |
| JP (1) | JP5346080B2 (fr) |
| CN (1) | CN102057101B (fr) |
| ES (1) | ES2390257T3 (fr) |
| FR (1) | FR2932822B1 (fr) |
| PL (1) | PL2321457T3 (fr) |
| PT (1) | PT2321457E (fr) |
| WO (1) | WO2010007227A1 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2939809B1 (fr) * | 2008-12-11 | 2011-01-14 | Rowenta Werke Gmbh | Appareil de repassage comportant une pompe piezoelectrique |
| US8956325B2 (en) * | 2011-12-07 | 2015-02-17 | Stmicroelectronics, Inc. | Piezoelectric microfluidic pumping device and method for using the same |
| KR101452050B1 (ko) * | 2012-11-12 | 2014-10-21 | 삼성전기주식회사 | 마이크로 펌프 |
| US9920752B2 (en) | 2012-11-14 | 2018-03-20 | Koninklijke Philips N.V. | Fluid pump |
| PL2941502T3 (pl) * | 2013-01-02 | 2018-01-31 | Koninklijke Philips Nv | Parownica do odzieży |
| JP6726166B2 (ja) * | 2015-02-17 | 2020-07-22 | 大研医器株式会社 | ポンプユニット及びその製造方法 |
| TWI661127B (zh) * | 2016-09-05 | 2019-06-01 | 研能科技股份有限公司 | 微型流體控制裝置 |
| WO2018079375A1 (fr) * | 2016-10-27 | 2018-05-03 | 日東工器株式会社 | Pompe à liquides |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0350300Y2 (fr) * | 1986-07-11 | 1991-10-28 | ||
| DE4304238A1 (de) * | 1993-02-12 | 1994-08-18 | Braun Ag | Elektrisch angetriebene Pumpe zur Wasserförderung in Haushaltsgeräten |
| US7198250B2 (en) * | 2000-09-18 | 2007-04-03 | Par Technologies, Llc | Piezoelectric actuator and pump using same |
| JP4501517B2 (ja) * | 2004-04-21 | 2010-07-14 | パナソニック電工株式会社 | 圧電ダイヤフラムポンプ |
| JP2006105027A (ja) * | 2004-10-05 | 2006-04-20 | Alps Electric Co Ltd | 圧電振動子及びその配線方法 |
| FR2889210B1 (fr) * | 2005-07-26 | 2007-09-07 | Seb Sa | Appareil electromenager comportant un generateur de vapeur relie par plusieurs cordons a differents accessoires |
-
2008
- 2008-06-24 FR FR0803520A patent/FR2932822B1/fr not_active Expired - Fee Related
-
2009
- 2009-06-19 JP JP2011515521A patent/JP5346080B2/ja not_active Expired - Fee Related
- 2009-06-19 PT PT09797554T patent/PT2321457E/pt unknown
- 2009-06-19 US US13/001,209 patent/US8641388B2/en not_active Expired - Fee Related
- 2009-06-19 CN CN2009801212781A patent/CN102057101B/zh not_active Expired - Fee Related
- 2009-06-19 EP EP09797554A patent/EP2321457B1/fr not_active Not-in-force
- 2009-06-19 ES ES09797554T patent/ES2390257T3/es active Active
- 2009-06-19 PL PL09797554T patent/PL2321457T3/pl unknown
- 2009-06-19 WO PCT/FR2009/000739 patent/WO2010007227A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010007227A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102057101A (zh) | 2011-05-11 |
| JP5346080B2 (ja) | 2013-11-20 |
| US20110103980A1 (en) | 2011-05-05 |
| FR2932822A1 (fr) | 2009-12-25 |
| EP2321457B1 (fr) | 2012-08-15 |
| PT2321457E (pt) | 2012-10-02 |
| ES2390257T3 (es) | 2012-11-08 |
| WO2010007227A1 (fr) | 2010-01-21 |
| JP2011525591A (ja) | 2011-09-22 |
| PL2321457T3 (pl) | 2012-11-30 |
| FR2932822B1 (fr) | 2010-08-20 |
| US8641388B2 (en) | 2014-02-04 |
| CN102057101B (zh) | 2012-04-18 |
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