EP1366228B1 - Impulsdampf-bügeleisen - Google Patents

Impulsdampf-bügeleisen Download PDF

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Publication number
EP1366228B1
EP1366228B1 EP02711149A EP02711149A EP1366228B1 EP 1366228 B1 EP1366228 B1 EP 1366228B1 EP 02711149 A EP02711149 A EP 02711149A EP 02711149 A EP02711149 A EP 02711149A EP 1366228 B1 EP1366228 B1 EP 1366228B1
Authority
EP
European Patent Office
Prior art keywords
steam
iron
water
valve
chamber
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.)
Expired - Lifetime
Application number
EP02711149A
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English (en)
French (fr)
Other versions
EP1366228A1 (de
Inventor
Ernst-Otto GÖHRE
Axel Wehrwein
Norbert Voss
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 EP1366228A1 publication Critical patent/EP1366228A1/de
Application granted granted Critical
Publication of EP1366228B1 publication Critical patent/EP1366228B1/de
Anticipated expiration legal-status Critical
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    • 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

Definitions

  • the present invention relates to steam irons where the vaporization of water is almost instantaneous.
  • Steam irons generally comprising a water reservoir, a heated spray chamber to quickly evaporate the water that reaches it drip tank, a heated soleplate with the surface of ironing, steam outlet holes being formed in the soleplate.
  • the simplest irons have an adjustable flow valve through which the water drop of the tank in the vaporization chamber under the effect of gravity.
  • the produced vapor comes out of the iron to the atmosphere through channels and holes of output constituting a steam exhaust circuit.
  • the steam occupies a large volume and runs through the exhaust system at high speed.
  • the pressure of the steam in the chamber of vaporization increases.
  • the steam outlet through the holes of the sole is thwarted and the pressure in the vaporization chamber increases further.
  • This internal pressure in the vaporization chamber is opposed to the passage of water in the adjustable flow valve, which significantly decreases the amount following steam produced.
  • the internal overpressure can not exceed one value corresponding to the height of the water column between the exit of water from the valve and the level of water in the tank, usually a few centimeters.
  • the amount of steam varies greatly during ironing, according to the fabrics and the ironing support.
  • Load losses being proportional to the square of the velocity of the vapor in the circuit, the speed is limited, in particular the speed of exit through the holes of the sole, which can be a disadvantage for the penetration of steam into the fabrics.
  • steam can not be used in a sprayer, which requires too much pressure for its operation.
  • Patent JP01262899 discloses an iron comprising a steam valve whose control rod is driven by an electromagnet. The valve is actuated periodically to produce an excess of steam so as to clean the steam room. Overpressure occurs when closing the valve. But this device is not intended to continuously obtain a powerful steam.
  • the steam can also be pressurized high, which solves these problems. This is the case when iron includes - or is associated with - a steam generator having a closed boiler in which a body of water tip slowly. But these systems are expensive.
  • the object of the invention hereinafter is to overcome these drawbacks by proposing a economic iron in which the average pressure of the steam generated is sufficiently high to overcome overpressures due to ironing and / or to allow high vapor output rates and / or to allow the use of steam in a sprayer.
  • the object of the invention is achieved by an iron comprising a reservoir of water at atmospheric pressure, the water of the reservoir flowing through a nozzle between this reservoir and a heated and regulated vaporization chamber, a soleplate having the ironing surface, steam outlet holes being formed in the soleplate, remarkable in that the iron comprises resonant means or relaxation vibration the water circuit and steam, the cyclic variation of the vapor pressure being self-maintained at an average pressure greater than that corresponding to the water column available in the iron.
  • Figure 1 in the appendix shows how we surprisingly obtain such iron.
  • This figure is a graph of the mass flow rate Q of steam in grams per minute depending on the total section S in square millimeters of steam outlet ports, for different nozzle passage diameters of a prototype. The diameters are marked on each curve.
  • the prototype originally equipped with a nozzle with a diameter of 0.95mm had an initial steam outlet section of 80mm2. Exit holes from steam were gradually removed to decrease the output section. In this operation, up to a section of 25mm2 approximately, we saw the flow of Steam slowly decrease without surprise. Then continuing the decrease, the iron surprisingly produced more and more steam, up to 24 grams per minute with a steam outlet section of only about 10 mm2, and with a high output speed. At the same time, it can be seen that iron emits a noise and that the average pressure in the vaporization chamber increases dramatically to greatly exceed the value corresponding to the height of the water column feeding the nozzle.
  • Overpressure is obtained for a value of the steam outlet section less than a critical value.
  • the start of the described operating mode is obtained by shaking or abrupt opening of the nozzle. Operation can then present an instability, which can be explained by a loss excessive energy through the exit holes, or by great difficulty in transform the pressure energy into sufficient kinetic energy. This energy is normally responsible for creating a temporary depression in the chamber and suck the water through the nozzle.
  • FIG. 1 shows various curves of a prototype relating to nozzles whose passage diameter is different.
  • the zone or operating mode sought is stable and starts spontaneously and is limited to the right by a curve A in dashed line.
  • m is from 1.5 to 3.5, preferably 2.5 n is between 2 and 4.5, preferably 3.5 p is between 1 and 2, preferably 1.25 q is from 7 to 10, preferably 8.
  • the nozzle is constituted by the passage of an adjustable flow valve.
  • the steam outlet section is chosen to suit a wide range of valve openings, so as to maintain a flow control easily possible in the described operating mode.
  • the iron comprises a non-return valve between the tank and the spray chamber.
  • the non-return valve has the advantage of preventing the return of steam in the water tank, and thus its slow warming.
  • valve and the adjustable valve can advantageously be combined to to make a subassembly.
  • the operation has first seemed much more critical with spray chambers and circuits known steam. Indeed the check valve removes small implosions described above.
  • the steam circuit has elongated passages where the steam circulates at high speed which make up with the flapper and the chamber of vaporization a stable oscillating steam circuit.
  • the drip followed by a valve includes a module closing a large passage intended to allow a large flow of water to pass more quickly and pierced with the proper orifice of the drip.
  • the orifice is released gradually by a needle stem in a first part of his control stroke and the largest flows of water and steam are obtained in a second part of the rod run where the module is gradually raised.
  • the presence of the flapper increases the curvature to the left and bottom of a curve A similar to that visible in FIG. 1, and decreases the orifice and outlet section flow rate equal to so that low Q operation does not allow self priming oscillations.
  • the presence of the valve therefore requires greater equal-flow openings as the first version described. It also moves the upper part of the stability curve A on the right of the diagram. Stability is improved for large orifice openings and high flows, which is can explain by the absence of return and therefore of energy losses in the tank.
  • the steam outlet section S may be larger.
  • the iron comprises a flap fixed passage acting as a nozzle between the reservoir and the chamber of vaporization.
  • the iron further comprises a flow control valve of steam located on the steam circuit.
  • the iron 1 has a water tank 2, a sole 3 in thermal connection with a body heating element 4 including a vaporization chamber 5 closed by a plate 6 and equipped with a heating element 7.
  • the body 4 is regulated in temperature by a thermostat 22.
  • a drip device 8 provides a passage of water from the tank 2 to the spray chamber 5.
  • the drip has an orifice 9 whose section can be reduced by a needle 10.
  • the steam produced in the instantaneous vaporization chamber 5 is collected by passages or 11. It escapes into the atmosphere through one or more calibrated passages 12.
  • the steam is then distributed under the sole 3 by a distribution chamber 13 from which it escapes through the holes 14 of the sole towards the fabric to iron.
  • the point of operation m moves on the diagram of figure 2 when leaving vertically the curve C0 to get closer to the abscissa parallel to the ordinate axis.
  • the S0 section is chosen so that in this operation moving the operating point cuts a maximum characteristic curves in the stability zone to allow adjustment without risk.
  • valve is for example constituted by a ball 15 disposed in a bore at the end of the nozzle 9. Normally opened by the weight of the ball, the valve allows water to flow through tank 2 as the pressure in the chamber 5 is low, and then closes.
  • the channels 11 are lengthened and calibrated with the same care as the outlets 12 so that that the high speeds of movement concern more steam. Finally evaporation of the water previously admitted into the chamber, the system then has more energy to create a depression in chamber 5 and open the flap. Channels 11 then have their input 16 remote from the output by 12. If necessary, the length of the channels 11 can still be increased for example by a tube 17 wound and having an entry into the chamber 5, as can be seen in Figure 7.
  • the iron is an iron similar to that of Figure 4 but equipped with a wide-flow drip and a valve 15 visible in Figure 10.
  • the output section of steam, marked S0 on an equivalent of FIG. 2 is reduced only so that the spontaneous initiation of the oscillations is obtained for an average opening of the orifice 9 of the drip.
  • the valve 15 made of silicone elastomer in series with the drip, is advantageously very light. It has a large surface, facing the vaporization chamber, on which the vapor pressure can be applied to close easily.
  • the drip may, optionally, include a module 25 carrying the orifice 9, said module being raised at the end of the opening stroke of the needle 10, to release faster a greater passage to the water tank.
  • the section S0 is chosen equal to 40 mm 2 and the drip has a maximum passage section of 1, 8 mm2 as long as the module is on its seat, and 25 mm 2 when the module is fully raised.
  • the oscillation operation is spontaneous for a section of the vapor passages S0 of up to 60 mm 2 .
  • the user sets the steam flow to a low level.
  • the operating point lies between the points M0 and M1.
  • the iron then works in a classical way, without oscillations pressure. When she wants to iron difficult fabrics, with a lot of very energetic steam, it increases the flow with the control of bushel.
  • the iron then changes gears, the operating point m crosses the line stability limit and self priming A at M1, and is between the points M1 and M of the diagram of Figure 9.
  • Maximum operating point m is in M on the curve C0 corresponding to the maximum opening of the orifice of the valve.
  • the iron works with oscillations whose frequency is the order of 20 to 30 beats per minute for a prototype made. Steam coming out at high speed is very penetrating and effective.
  • the prototype, as well equipped with a large water inlet and a valve delivers 35 grams of steam per minute when the iron is raised, and another 32 grams per minute when it is applied on the ironing cloth. The flow of steam therefore varies very little with the ironing conditions.
  • the steam circuit is equipped with a flow control steam 20 consisting for example of a needle or a bushel acting at the junction of the channels 11 with the orifices 12.
  • the passage of the water in the orifice 9 being constant, only one of the characteristic curves similar to those previously described, for example the curve C0 of FIG. 3 corresponding to the maximum of the possibilities of vaporization.
  • the adjustment device 20 being in full opening, it corresponds at the point Sm of the characteristic of the output and at the point M of operation. Channels 11 are calibrated so that this point of operation at full power is located in the stability zone.
  • the steam comes out with enough force to can be used in a sprayer. All that is needed is to direct the exit of steam by a switch to a sprayer rather than to the chamber of steam distribution 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Magnetic Treatment Devices (AREA)

Claims (9)

  1. Bügeleisen (1) mit einem Behälter (2) für bei Luftdruck gehaltenes Wasser, wobei das Wasser durch eine zwischen dem Wasserbehälter (2) und der erhitzten, regulierten Dampfkammer (5) angeordneten kalibrierten Öffnung fließt, und mit einer die Bügelfläche aufweisenden Sohle (3), in welcher Dampfaustrittsöffnungen (12) angeordnet sind, dadurch gekennzeichnet, dass das Bügeleisen (1) mit Mitteln ausgestattet ist, die das Strömen von im Wasser- bzw. Dampfleitungssystem enthaltenen Wasser oder Dampf in Resonanz oder Entspannungsschwingungen versetzen, wobei die periodischen Dampfdruckschwankungen selbsttätig beibehalten werden bei einem Durchschnittsdruck, der höher ist als der Druck, welcher der im Bügeleisen verfügbaren Wassersäule entspricht.
  2. Bügeleisen nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass die Dampfaustrittsöffnungen (12) und der Durchmesser der Durchlassöffnung (9) des Ventils (8) derart bemessen sind, dass eine selbsttätig oszillierende Funktionsweise erwirkt wird.
  3. Bügeleisen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die kalibrierte Öffnung durch die Durchlassöffnung (9) eines Ventils (8) zur Durchflussregulierung gebildet ist.
  4. Bügeleisen nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass das Bügeleisen ein zwischen dem Wasserbehälter (2) und der Dampfkammer (5) angeordnetes Rückschlagventil (15, 9) aufweist.
  5. Bügeleisen nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass das Dampfleitungssystem längliche Durchgänge oder Kanäle (11) aufweist, in denen sich der Dampf schnell fortbewegt und die zusammen mit dem Rückschlagventil (15, 9) und der Dampfkammer (5) ein selbsttätig oszillierendes, stabiles Dampfleitungssystem bilden.
  6. Bügeleisen nach Anspruch 4, dadurch gekennzeichnet, dass das Bügeleisen eine oszillierende und eine nicht oszillierende Funktionsweise aufweist.
  7. Bügeleisen nach Anspruch 1, dadurch gekennzeichnet, dass das Bügeleisen ein Ventil mit unveränderlicher Durchlassöffnung (9) aufweist, welches als zwischen dem Wasserbehälter (2) und der Dampfkammer (5) angeordnete kalibrierte Öffnung dient.
  8. Bügeleisen nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass es zusätzlich ein im Dampfleitungssystem angeordnetes Ventil (20) zur Dampfleistungsregulierung aufweist.
  9. Bügeleisen nach dem vorangehenden Anspruch, dadurch gekennzeichnet, dass das Dampfleitungssystem längliche Durchgänge oder Kanäle(11) aufweist, in denen sich der Dampf schnell fortbewegt und die zusammen mit dem Rückschlagventil (15, 9) und der Dampfkammer (5) ein selbsttätig oszillierendes, stabiles Dampfleitungssystem bilden.
EP02711149A 2001-02-27 2002-02-14 Impulsdampf-bügeleisen Expired - Lifetime EP1366228B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0102676 2001-02-27
FR0102676A FR2821369B1 (fr) 2001-02-27 2001-02-27 Fer a repasser a vapeur pulsee
PCT/IB2002/000448 WO2002068748A1 (fr) 2001-02-27 2002-02-14 Fer a repasser a vapeur pulsee

Publications (2)

Publication Number Publication Date
EP1366228A1 EP1366228A1 (de) 2003-12-03
EP1366228B1 true EP1366228B1 (de) 2005-03-16

Family

ID=8860511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02711149A Expired - Lifetime EP1366228B1 (de) 2001-02-27 2002-02-14 Impulsdampf-bügeleisen

Country Status (12)

Country Link
US (1) US6807756B2 (de)
EP (1) EP1366228B1 (de)
JP (1) JP4067968B2 (de)
CN (1) CN1263918C (de)
AT (1) ATE291118T1 (de)
DE (1) DE60203268T2 (de)
ES (1) ES2237666T3 (de)
FR (1) FR2821369B1 (de)
HK (1) HK1057586A1 (de)
MX (1) MXPA03007448A (de)
RU (1) RU2248420C1 (de)
WO (1) WO2002068748A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2330698B1 (es) * 2006-10-24 2010-09-21 Bsh Krainel, S.A. Plancha de vapor.
ES2360994B1 (es) * 2008-08-22 2012-04-19 Bsh Electrodomésticos España, S.A. Plancha a vapor.
EP2213783A1 (de) * 2009-01-28 2010-08-04 Koninklijke Philips Electronics N.V. Dampfbügeleisen
DE202014011499U1 (de) * 2013-07-25 2021-06-16 Koninklijke Philips N.V. Einrichtung zum Erzeugen von Dampf
RU2675027C2 (ru) * 2014-08-26 2018-12-14 Конинклейке Филипс Н.В. Устройство для обработки паром, выполненное с генератором шума
CN106222981B (zh) * 2016-09-05 2018-06-08 深圳市鑫汇科股份有限公司 电磁感应电熨斗系统
CN110725114A (zh) * 2019-11-25 2020-01-24 王小亮 旋转熨烫或正反脉冲旋转熨烫的蒸汽干洗挂烫机结构
CN219253433U (zh) * 2022-09-23 2023-06-27 苏州宝时得电动工具有限公司 手持式蒸汽清洁设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2596684A (en) * 1945-12-03 1952-05-13 Richard L Hedenkamp Steam electric iron
US2782537A (en) * 1954-06-29 1957-02-26 Vera-Mege Rafael Steam pressing iron
US3002302A (en) * 1957-06-19 1961-10-03 Gen Electric Liquid spray steam iron
US3703043A (en) * 1970-07-21 1972-11-21 Matsushita Electric Ind Co Ltd Steam iron
FR2626901B1 (fr) * 1988-02-10 1990-06-29 Seb Sa Fer a repasser a vapeur comprenant un dispositif perfectionne d'alimentation en eau de la chambre de vaporisation
JP2574381B2 (ja) * 1988-04-12 1997-01-22 松下電器産業株式会社 スチームアイロン
US5010664A (en) * 1988-11-18 1991-04-30 Matsushita Electric Industrial Co., Ltd. Steam iron having a solenoid driven pump and heated evaporation chamber for providing steam and operable for further providing extra steam at specified intervals
US5430963A (en) * 1993-11-23 1995-07-11 Kuo-Chu; Chien Iron including pressurizing and emitting steam chambers and remote reservoir
DE19524333C1 (de) * 1995-07-04 1996-08-14 Rowenta Werke Gmbh Dampfbügeleisen
DE10224549A1 (de) * 2002-05-31 2003-12-18 Braun Gmbh Dampfbügeleisen

Also Published As

Publication number Publication date
JP4067968B2 (ja) 2008-03-26
DE60203268T2 (de) 2006-02-02
JP2004527288A (ja) 2004-09-09
WO2002068748A1 (fr) 2002-09-06
FR2821369B1 (fr) 2003-09-05
US6807756B2 (en) 2004-10-26
CN1505716A (zh) 2004-06-16
DE60203268D1 (de) 2005-04-21
ES2237666T3 (es) 2005-08-01
US20040128873A1 (en) 2004-07-08
ATE291118T1 (de) 2005-04-15
EP1366228A1 (de) 2003-12-03
CN1263918C (zh) 2006-07-12
RU2248420C1 (ru) 2005-03-20
HK1057586A1 (en) 2004-04-08
FR2821369A1 (fr) 2002-08-30
MXPA03007448A (es) 2003-12-04

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