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WO1996023099A1 - Fer a vapeur a refroidissement rapide - Google Patents

Fer a vapeur a refroidissement rapide Download PDF

Info

Publication number
WO1996023099A1
WO1996023099A1 PCT/IB1996/000020 IB9600020W WO9623099A1 WO 1996023099 A1 WO1996023099 A1 WO 1996023099A1 IB 9600020 W IB9600020 W IB 9600020W WO 9623099 A1 WO9623099 A1 WO 9623099A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam
iron
soleplate
steam iron
temperature
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.)
Ceased
Application number
PCT/IB1996/000020
Other languages
English (en)
Inventor
Adriaan Netten
Jesselin Low Ee Leng
Theresa Bee Khim Wee
Bernardus Fredericus Rudolphus Ignatius WILKENS
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.)
Koninklijke Philips NV
Philips Norden AB
Original Assignee
Philips Electronics NV
Philips Norden AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Electronics NV, Philips Norden AB filed Critical Philips Electronics NV
Priority to KR1019960705204A priority Critical patent/KR970701812A/ko
Priority to JP8522748A priority patent/JPH09510905A/ja
Priority to EP96900018A priority patent/EP0752023A1/fr
Priority to BR9603891A priority patent/BR9603891A/pt
Publication of WO1996023099A1 publication Critical patent/WO1996023099A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • D06F75/26—Temperature control or indicating arrangements
    • 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 invention relates to a steam iron comprising: a soleplate; a steam generator operative to convert water into steam, the steam generator comprising a steam chamber which is thermally coupled to the soleplate; means for sensing an actual temperature of the soleplate and means for setting a desired temperature of the soleplate.
  • a steam iron is known from United States Patent No. 4,939,342.
  • During ironing the user of a steam iron selects a soleplate temperature depending on the properties of the fabric to be ironed. When the user selects a lower temperature, it takes a considerable time until the soleplate is cooled down to the lower desired temperature, particularly when the iron cools down freely on a tray or in heel rest position.
  • a further problem with steam irons is the risk of scorching when the iron is left unattended on the fabric.
  • Object of the invention is to provide a steam iron with reduced cool-down time when a lower soleplate temperature has been selected. It is a further object of the invention to provide a steam iron with reduced risk of scorching when the steam iron is left unattended on a fabric.
  • the steam iron as specified in the opening paragraph is characterized in that the steam iron further comprises a control means for comparing the actual temperature and the desired temperature of the soleplate and for generating an activation signal for activating the steam generator if the actual temperature is higher than the desired temperature.
  • the steaming action of the steam generator cools down the soleplate, because the evaporation of water withdraws heat from the soleplate.
  • the cool-down time to a lower soleplate temperature is thereby reduced considerably.
  • the means for setting the desired soleplate temperature may comprise a dial or buttons for manually selecting the temperature.
  • the steaming action can further be used when the ironing work is finished. In that case the switch-off of the steam iron is considered as a very low desired soleplate temperature.
  • the cooling of the iron after use increases the safety.
  • the means for setting may comprise a means for providing a preset soleplate temperature which is indicative of scorching of the fabric to be ironed. In this case the cooling of the soleplate by evaporating water is used to prevent scorching if the iron is left on the fabric.
  • a soleplate with low heat inertia is advantageous as it cools down in shorter time so that the risk of scorching is reduced still further.
  • a preferred embodiment is characterized in that the steam generator further comprises a water tank for containing water to be converted into steam and a water pump f pumping water from the water tank to the steam chamber, the water pump being operative i response to the activation signal.
  • a water pump enables an accurate dosing of th water to be evaporated depending on the needs during cool-down, anti-scorching, normal steaming and shot of steam.
  • the steam iron according to die invention may be further provided with a hand sensor to detect whether the iron is in use or not, a position sensor to detect horizontal and vertical position of the iron and a motion sensor to detect whether the iron is being moved o not.
  • the hand sensor, the position sensor and the motion sensor enable to detect a situation in which it may be concluded that the steam iron is left unattended on a fabric and that cooling of the soleplate is needed to prevent scorching.
  • the motion sensor can be a conventional mercury pool switch, ball switch or can be based on measurement of the lower power need of the soleplate when the iron is left on the fabric. A much safer way is to provide the iron with a stand for receiving the iron in a rest position and means for detectin the reception of the iron in the stand.
  • the means for detecting the reception of the iron in the stand can be for example a switch in the steam iron, which switch is engaged by a notch protruding from the stand which corresponds with a recess in the steam iron.
  • Figure 1 shows schematically a cross section of a first embodiment of a steam iron according to the invention
  • Figure 2 shows a flow chart of a control program for the first embodiment
  • Figure 3 shows schematically a cross section of a second embodiment of a steam iron according to the invention.
  • Figure 4 shows a flow chart of a control program for the second embodiment.
  • Fig. 1 shows a first embodiment of a steam iron according to the invention.
  • the steam iron has a conventional soleplate 2 which is heated by an electrical heating element 4.
  • the actual temperature of the soleplate 2 is sensed by means of a temperature sensor 6, for instance a PTC-resistor, a NTC-resistor or a thermo-couple element.
  • the desired temperature of the soleplate 2 is set by the user by means of a temperature selector or dial 8, but any other known setting means such as push buttons, touch buttons or knobs are possible as well.
  • a controller 10 compares the actual temperature with the desired temperature and controls the heater 4, for example with a triac, to make the actual temperature equal to the desired temperature.
  • the steam iron is further provided with a steam generator 12 comprising a water tank 14, a water pump 16 and a steam chamber 18 which is heated by the soleplate 2.
  • the water pump 16 pumps water from the water tank 14 to the steam cham ⁇ ber 18 via a hose 20.
  • the water evaporates in the steam chamber 18 and escapes via steam vents 22 in the soleplate 2.
  • the water pump 16 is activated under command of an activation signal AS from the controller 10 when the user selects with dial 8 a desired temperature which is lower than the actual temperature of the soleplate 2 sensed by temperature sensor 6.
  • the evaporation of water in the steam chamber 18 cools down the steam chamber 18 and so the soleplate 2.
  • the cool-down time can be reduced considerably compared with the time for cooling when the steam iron is resting on its heel or on a tray.
  • a heat capacity of 480 Joule/°C of the soleplate 2 it follows that the water consumption for steaming and so for cooling is about 0.2 gram water per degree Centigrade of the soleplate temperature. With 20 grams steam per minute the temperature drops about 100 degrees Centigrade in one minute. This corresponds to a cooling power of about 860 Watt. On a tray the dissipation of the iron is between 50 and 100 Watt.
  • the cooling time can be shortened by a factor 10 or more by steaming.
  • the controller 10 is preferably a microprocessor with suitable interface circuits to the dial 8, the temperature sensor 6, the heating element 4 and the water pump 16.
  • Fig. 2 shows a flow chart for heating and cooling of the soleplate 2. The inscriptions to Fig. 2 are listed in Table I below: Table I
  • the actual temperature of the soleplate T ⁇ p ⁇ is compared (block 202) with the desired temperature T desired set by the user using the dial 8. If the actual temperature of the soleplate is higher than the desired temperature, then the controller 10 activates the water pump 16 (block 204) by sending an appropriate activating signal AS to the water pump 16 and the soleplate is cooled down. After cooling down or if the desired temperature is not lower than the actual temperature, the controller 10 continues to control the heater 4 of the soleplate to maintain the desired soleplate temperature.
  • the steam generator can, of course, also be used for normal steaming or for producing a shot of steam.
  • the controller 10 sends appropriate activation signals of suitable duration to the water pump 16 depending on the actual or programmed steaming need.
  • Fig. 3 shows a second embodiment of a steam iron according to the invention.
  • the cooling effect of evaporating water is used not only for obtaining a fast cool-down of the soleplate after the setting to a lower desired temperature, but also for reducing the risk of scorching of the fabric to be ironed.
  • a thin low heat inertia soleplate 2 which is, for example, heated by a thick film heating element 4.
  • the low heat inertia reduces the risk of scorching considerably because of the fast decay of the soleplate temperature to lower temperatures.
  • the steam iron of Fig. 3 works as explained in relation to the embodiment of Fig. 1 and the accompanying flow chart of Fig. 2.
  • a hand sensor 24 in the handgrip 26 of the steam iron is provided further with a hand sensor 24 in the handgrip 26 of the steam iron.
  • the hand sensor 24 can be of any conventional type, for example a capacitive sensor, a mechanical sensor, a resistive sensor or an optical sensor.
  • the hand sensor 24 signals to the controller 10 whether the steam iron is being used (in-use) or not (not in-use) by the user.
  • a position sensor 28 which signals to the controller 10 whether the steam iron is in a substantially horizontal position or in a substantially vertical position.
  • the steam iron is in the substantially horizontal position when it is being moved over the fabric to be ironed or when it is resting on a tray or on the ironing board.
  • the steam iron is in the substantially vertical position when it is resting on its heel.
  • a motion sensor 30 which signals to the controller 10 whether the steam iron is being moved by the user or not.
  • the position sensor 28 and the motion sensor 30 can each be of conventional design, for example a mercury pool switch mounted inside the steam iron in an appropriate position.
  • a very safe way of motion detection is the provision of a stand 32 for placing the steam iron when it is not in use and means for detecting whether the steam iron is placed on the stand or not.
  • the means can be a switch 34 engaged by a notch 36 on the stand 32. The switch 34 signals to the controller 10 whether the steam iron is certainly moving or not and provides a very safe indication of non-movement.
  • Fig. 4 shows a flow chart for combined fast cooling and scorch prevention.
  • the inscriptions to Fig. 4 are listed in Table II below:
  • Block 402 If the handgrip 26 is touched by the user (block 402), then the signals from the position sensor 28 and from the motion sensor 30 or the stand detection switch 32 is ignored and the steam iron operates as already explained in relation to the flow chart of Fig. 2.
  • Blocks 406, 408 and 410 of Fig. 4 correspond to blocks 202, 204 and 206, respectively, of Fig. 2. If desired, the steps of blocks 406 and 408 may be omitted from the flow chart of Fig. 4. If t handgrip is not touched by the user (block 402), then the controller 10 tests whether the iro is in a substantially horizontal position (block 404).
  • the iron is in the substantially vertical heel rest position and the control of the heating of the soleplate can proceed as shown and explained in the flow chart of Fig. 2. This means that, if the user selects a lower temperature in the vertical heel rest position, the soleplate is cooled down by evaporating water. If the iron is in the substantially horizontally position (block 404), then the controller 10 tests whether the iron is on stand or not (block 412). If the iron is on stand the control returns to normal temperature control (block 406), otherwise the scorching prevention is enabled.
  • the temperature of the soleplate is compared with a soleplate temperature T ⁇ o ⁇ g which is indicative of scorching of the fabric being ironed (block 414) If the actual temperature T ⁇ p ⁇ of the soleplate is greater than the scorching temperature ⁇ scorch i ng » tnen tne controller 10 activates the water pump (block 416) to cool down the soleplate 2 and any fabric underneath the soleplate.
  • the scorching prevention by activating the steam generator takes place if the handgrip of the iron is not touched and the iron is in the horizontal position and is not placed on the stand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)

Abstract

L'invention concerne un fer à vapeur ayant une semelle (2) chauffée par un dispositif de chauffage (4). Un dispositif de commande (10) ajuste la puissance du dispositif de chauffage (4) en comparant la température de la semelle (2) détectée par un détecteur de température (6), cette température étant choisie avec un bouton de température (8). Le fer à vapeur comprend en outre un générateur de vapeur (12) ayant un réservoir d'eau (14), une pompe à eau (16) et une chambre à vapeur (18) qui est chauffée par la semelle (2). Lorsque l'utilisateur du fer choisit une nouvelle température pour la semelle qui est inférieure à la température réelle de la semelle, le dispositif de commande (10) active le générateur de vapeur (12) en envoyant un signal d'activation approprié à la pompe d'eau (16). L'évaporation de l'eau absorbe la chaleur de la semelle (2) et diminue le temps de refroidissement.
PCT/IB1996/000020 1995-01-23 1996-01-10 Fer a vapeur a refroidissement rapide Ceased WO1996023099A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019960705204A KR970701812A (ko) 1995-01-23 1996-01-10 급냉 증기 다리미(Fast cooling steam iron)
JP8522748A JPH09510905A (ja) 1995-01-23 1996-01-10 迅速冷却スチームアイロン
EP96900018A EP0752023A1 (fr) 1995-01-23 1996-01-10 Fer a vapeur a refroidissement rapide
BR9603891A BR9603891A (pt) 1995-01-23 1996-01-10 Ferro de engomar a vapor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP95200146.9 1995-01-23
EP95200146 1995-01-23

Publications (1)

Publication Number Publication Date
WO1996023099A1 true WO1996023099A1 (fr) 1996-08-01

Family

ID=8219968

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1996/000020 Ceased WO1996023099A1 (fr) 1995-01-23 1996-01-10 Fer a vapeur a refroidissement rapide

Country Status (6)

Country Link
EP (1) EP0752023A1 (fr)
JP (1) JPH09510905A (fr)
KR (1) KR970701812A (fr)
CN (1) CN1148419A (fr)
BR (1) BR9603891A (fr)
WO (1) WO1996023099A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042908A1 (fr) * 1997-03-25 1998-10-01 Krainel, S.A. Fer a repasser a vapeur ameliore
WO1999022061A1 (fr) * 1997-10-29 1999-05-06 Koninklijke Philips Electronics N.V. Fer a vapeur a commande de puissance par anticipation
DE19904815A1 (de) * 1999-02-05 2000-08-10 Braun Gmbh Bügeleisen
SG83185A1 (en) * 2000-01-25 2001-09-18 Koninkl Philips Electronics Nv Steam iron
WO2006000958A1 (fr) * 2004-06-23 2006-01-05 Koninklijke Philips Electronics N.V. Procede de commande de la temperature de repassage pendant un processus de repassage a vapeur et fer a vapeur correspondant
WO2008151966A1 (fr) * 2007-06-14 2008-12-18 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de repassage à vapeur avec système anti-goutte
WO2009083417A1 (fr) * 2007-12-28 2009-07-09 BSH Bosch und Siemens Hausgeräte GmbH Fer à repasser à vapeur
WO2010060695A1 (fr) * 2008-11-03 2010-06-03 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de repassage électrique doté d'un système de marche/arrêt automatique
ES2378947A1 (es) * 2008-08-22 2012-04-19 Bsh Electrodomésticos España, S.A. Dispositivo eléctrico de planchado con sistema automático de encendido y apagado.
WO2012085746A1 (fr) * 2010-12-23 2012-06-28 Koninklijke Philips Electronics N.V. Dispositif de repassage à vapeur
ES2403784R1 (es) * 2010-10-13 2013-05-30 Bsh Electrodomesticos Espana Dispositivo de planchado a vapor
EP3483335A1 (fr) * 2017-11-14 2019-05-15 Vestel Elektronik Sanayi ve Ticaret A.S. Appareil permettant de déterminer si un dispositif est dans une première orientation ou une seconde orientation
WO2019122275A1 (fr) * 2017-12-22 2019-06-27 Koninklijke Philips N.V. Procédé pour diminuer activement la température d'une semelle chauffante dans un dispositif de traitement de textile
ES2946519A1 (es) * 2022-01-18 2023-07-20 Cecotec Res And Development S L Suela de plancha electrica y su metodo de enfriamiento
ES2948441A1 (es) * 2022-02-16 2023-09-12 Cecotec Res And Developments S L Metodo de planchado inteligente

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101104161B1 (ko) * 2009-05-06 2012-01-13 한경희 전기스팀 다리미
CN109811532B (zh) * 2017-04-17 2020-09-08 台州市涌星贸易有限公司 一种服装的收整方法
CN107447482A (zh) * 2017-08-30 2017-12-08 宁波凯波智能熨烫电器制造有限公司 利用水流量调节熨烫面板温度的方法及蒸汽刷
FR3081887B1 (fr) * 2018-05-31 2020-05-15 Seb S.A. Appareil de repassage equipe d'un organe de commande de vapeur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4939342A (en) * 1986-01-13 1990-07-03 U.S. Philips Corp. Electric steam iron with separately heated sole plate and steam chamber
FR2664302A3 (fr) * 1990-03-08 1992-01-10 Imetec Spa Fer a repasser electrique a appareil de vaporisation interieur.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4939342A (en) * 1986-01-13 1990-07-03 U.S. Philips Corp. Electric steam iron with separately heated sole plate and steam chamber
FR2664302A3 (fr) * 1990-03-08 1992-01-10 Imetec Spa Fer a repasser electrique a appareil de vaporisation interieur.

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042908A1 (fr) * 1997-03-25 1998-10-01 Krainel, S.A. Fer a repasser a vapeur ameliore
WO1999022061A1 (fr) * 1997-10-29 1999-05-06 Koninklijke Philips Electronics N.V. Fer a vapeur a commande de puissance par anticipation
US6079133A (en) * 1997-10-29 2000-06-27 U.S. Philips Corporation Steam iron with anticipating power control
DE19904815A1 (de) * 1999-02-05 2000-08-10 Braun Gmbh Bügeleisen
SG83185A1 (en) * 2000-01-25 2001-09-18 Koninkl Philips Electronics Nv Steam iron
WO2001055496A3 (fr) * 2000-01-25 2001-12-06 Koninkl Philips Electronics Nv Fer a repasser a vapeur
WO2006000958A1 (fr) * 2004-06-23 2006-01-05 Koninklijke Philips Electronics N.V. Procede de commande de la temperature de repassage pendant un processus de repassage a vapeur et fer a vapeur correspondant
US7721474B2 (en) 2004-06-23 2010-05-25 Koninklijke Philips Electronics N.V. Method for controlling an ironing temperature during a steam ironing process and a corresponding steam iron
WO2008151966A1 (fr) * 2007-06-14 2008-12-18 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de repassage à vapeur avec système anti-goutte
WO2009083417A1 (fr) * 2007-12-28 2009-07-09 BSH Bosch und Siemens Hausgeräte GmbH Fer à repasser à vapeur
DE102007062879A1 (de) * 2007-12-28 2009-07-09 BSH Bosch und Siemens Hausgeräte GmbH Dampfbügeleisen
DE102007062879B4 (de) * 2007-12-28 2013-05-16 BSH Bosch und Siemens Hausgeräte GmbH Dampfbügeleisen
ES2378947A1 (es) * 2008-08-22 2012-04-19 Bsh Electrodomésticos España, S.A. Dispositivo eléctrico de planchado con sistema automático de encendido y apagado.
ES2346619A1 (es) * 2008-11-03 2010-10-18 Bsh Krainel, S.A. Dispositivo electrico de planchado con sistema automatico de encendido y de apagado.
ES2346619B1 (es) * 2008-11-03 2011-08-04 Bsh Krainel, S.A. Dispositivo electrico de planchado con sistema automatico de encendido y de apagado.
WO2010060695A1 (fr) * 2008-11-03 2010-06-03 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de repassage électrique doté d'un système de marche/arrêt automatique
ES2403784R1 (es) * 2010-10-13 2013-05-30 Bsh Electrodomesticos Espana Dispositivo de planchado a vapor
WO2012085746A1 (fr) * 2010-12-23 2012-06-28 Koninklijke Philips Electronics N.V. Dispositif de repassage à vapeur
US8800180B2 (en) 2010-12-23 2014-08-12 Koninklijke Philips N.V. Steam ironing device
RU2573815C9 (ru) * 2010-12-23 2017-01-23 Конинклейке Филипс Электроникс Н.В. Паровое устройство для глажения
EP3483335A1 (fr) * 2017-11-14 2019-05-15 Vestel Elektronik Sanayi ve Ticaret A.S. Appareil permettant de déterminer si un dispositif est dans une première orientation ou une seconde orientation
WO2019122275A1 (fr) * 2017-12-22 2019-06-27 Koninklijke Philips N.V. Procédé pour diminuer activement la température d'une semelle chauffante dans un dispositif de traitement de textile
RU2728743C1 (ru) * 2017-12-22 2020-07-30 Конинклейке Филипс Н.В. Способ активного понижения температуры нагреваемой подошвы в устройстве для обработки текстильного изделия
US11028529B2 (en) 2017-12-22 2021-06-08 Koninklijke Philips N.V. Method for actively decreasing the temperature of a heatable soleplate in a textile treatment device
US11624149B2 (en) 2017-12-22 2023-04-11 Koninklijke Philips N.V. Portable device with image sensor and illumination system for textile classification
ES2946519A1 (es) * 2022-01-18 2023-07-20 Cecotec Res And Development S L Suela de plancha electrica y su metodo de enfriamiento
ES2948441A1 (es) * 2022-02-16 2023-09-12 Cecotec Res And Developments S L Metodo de planchado inteligente

Also Published As

Publication number Publication date
CN1148419A (zh) 1997-04-23
EP0752023A1 (fr) 1997-01-08
JPH09510905A (ja) 1997-11-04
BR9603891A (pt) 1997-10-07
KR970701812A (ko) 1997-04-12

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