EP1441175A2 - Procédé et appareil de production de vapeur d'eau pour le traitement du linge - Google Patents

Procédé et appareil de production de vapeur d'eau pour le traitement du linge Download PDF

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Publication number
EP1441175A2
EP1441175A2 EP03027669A EP03027669A EP1441175A2 EP 1441175 A2 EP1441175 A2 EP 1441175A2 EP 03027669 A EP03027669 A EP 03027669A EP 03027669 A EP03027669 A EP 03027669A EP 1441175 A2 EP1441175 A2 EP 1441175A2
Authority
EP
European Patent Office
Prior art keywords
working temperature
control pulses
evaporator
pulses
generated
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
Application number
EP03027669A
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German (de)
English (en)
Other versions
EP1441175A3 (fr
EP1441175B1 (fr
Inventor
Dietmar Berghänel
Nikolai Koustov
Hansjörg Lampe
Hans-Joachim Klug
Dieter Schmidt
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32520113&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1441175(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Publication of EP1441175A2 publication Critical patent/EP1441175A2/fr
Publication of EP1441175A3 publication Critical patent/EP1441175A3/fr
Application granted granted Critical
Publication of EP1441175B1 publication Critical patent/EP1441175B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
    • F22D5/26—Automatic feed-control systems

Definitions

  • the invention relates to a method and an apparatus for Generation of steam for laundry care.
  • the object of the invention is to overcome the disadvantages of the prior art Eliminate technology.
  • a method and a device can be specified with which reliably drip-free Superheated steam can be generated for the treatment of laundry can.
  • the evaporator is cycled so much water is added that depending on it Working temperature the water evaporates completely and therefore a drop-free superheated steam can be made available can.
  • the proposed method is not susceptible to Disorders. To control the amount of feed to the evaporator Water will not be in contact with the water mechanical elements required.. The proposed method is universal. It can be easily applied to the respective Adjust the power of an evaporator.
  • control pulses become more constant Frequency generated. This simplifies the technical implementation of the procedure. It is also useful that below one given control temperature no control pulses are generated. This always ensures the generation of a drip-free Hot steam.
  • An electromagnetic can be used to supply the water to the evaporator Valve opened or a pump controlled. In order to a particularly simple water supply is possible.
  • the frequency of the first pulse train can be more advantageous Way be 10 Hz.
  • the first and the second pulse train can be formed from sawtooth pulses. This is expediently Sequence of the control pulses formed from rectangular pulses. The enables precise control of the water supply device.
  • a device for generating steam for laundry care is provided with an evaporator and an associated water supply device, a device for generating a measurement signal which corresponds to a working temperature prevailing in the evaporator, a device for generating a sequence of control pulses with a pulse width corresponding to the working temperature, a device for controlling the water supply device by means of the control pulses, so that the evaporator is supplied with an increasing amount of water per unit of time as the working temperature increases.
  • the proposed device consists of a few parts. she is easy to manufacture, relatively robust and not susceptible to faults.
  • the device for generating a measurement signal can expediently a temperature dependent resistor or a thermocouple exhibit. This makes it possible in a simple way to create a to provide DC voltage corresponding to the working temperature.
  • the device for generating the control pulses Expediently comprises a programmable logic control circuit.
  • the programmable logic control circuit is advantageously programmed so that rectangular pulses as control pulses generated, the pulse width to the working temperature corresponds. It is also expedient that the control pulses be generated with constant frequency.
  • the control circuit can be a device for setting the for the generation operating temperature range to be taken into account by control pulses exhibit.
  • the proposed control circuit is relatively easy to implement. They can be inexpensively available be put.
  • the water supply device expediently has an electromagnetic one Valve or an electric water pump.
  • electromechanical components are reliable and can be easily controlled using control pulses.
  • the evaporator which Water supply device and the programmed control circuit accommodated in the housing of a household clothes dryer.
  • A preferably designed as a riser, Steam supply line from the evaporator to one of a rotatable Laundry drum surrounding laundry treatment room provided his.
  • Such a household clothes dryer is suitable not only for drying but also for treating laundry with superheated steam. In particular, it can cause odor-laden laundry cleaned without being washed separately got to.
  • FIG. 1 shows a block diagram of a device according to the invention for controlling a quantity to be supplied to an evaporator of water.
  • the amount of water supplied per unit of time is regulated depending on the working temperature of the evaporator.
  • thermocouple 1 To measure the working temperature of a conventional (here a thermocouple 1 is provided, which is connected to a first comparator 2. a AC voltage generator 3 is followed by a level controller 4, the output side with the other input of the first comparator 2 is connected. The first comparator is on the output side 2 with the interposition of an integrator 5 with a Input of a second comparator 6 connected.
  • a clock generator 7 is interposed by a differentiator 8 with the other input of the second comparator 6 connected.
  • a switching device 9 e.g. a relay, an electromagnetic valve, a Water pump or the like. Connected.
  • the function of the device is as follows:
  • the thermal voltage generated with the thermocouple 1 (see Fig. 2 lit. d) is fed to the first comparator 2.
  • the AC voltage generator 3 generates an AC voltage of e.g. 10 Hz, in the downstream level controller 5 in a sawtooth voltage (see Fig. 2 lit. c) a frequency of also 10 Hz converted and then also supplied to the first comparator 2 becomes.
  • the first comparator 2 is used in FIG lit. e schematically indicated AC voltage with a clock ratio generated that corresponds to the measured working temperature.
  • the AC voltage becomes a DC voltage converted, which is inversely proportional to the measured Working temperature is (see Fig. 2 lit.f).
  • This DC voltage is compared in the second comparator 6 with that of the clock generator 7 and the downstream differentiator 8 generated Sawtooth voltage lit. b (Fig. 2).
  • the in Fig. 2 under lit. g shown control pulses at the output of the second comparator 6 is output. It is about the control pulses around rectangular pulses.
EP20030027669 2003-01-25 2003-12-03 Procédé et appareil de production de vapeur d'eau pour le traitement du linge Expired - Lifetime EP1441175B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003102972 DE10302972B4 (de) 2003-01-25 2003-01-25 Verfahren und Vorrichtung zur Erzeugung von Wasserdampf für die Wäschepflege
DE10302972 2003-01-25

Publications (3)

Publication Number Publication Date
EP1441175A2 true EP1441175A2 (fr) 2004-07-28
EP1441175A3 EP1441175A3 (fr) 2005-05-11
EP1441175B1 EP1441175B1 (fr) 2008-08-27

Family

ID=32520113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030027669 Expired - Lifetime EP1441175B1 (fr) 2003-01-25 2003-12-03 Procédé et appareil de production de vapeur d'eau pour le traitement du linge

Country Status (2)

Country Link
EP (1) EP1441175B1 (fr)
DE (2) DE10302972B4 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008014924A1 (fr) * 2006-07-31 2008-02-07 Electrolux Home Products Corporation N.V. Processus pour commander une unité à vapeur d'un appareil ménager
US7753009B2 (en) 2006-10-19 2010-07-13 Whirlpool Corporation Washer with bio prevention cycle
US7886392B2 (en) 2006-08-15 2011-02-15 Whirlpool Corporation Method of sanitizing a fabric load with steam in a fabric treatment appliance
US7904981B2 (en) 2006-08-15 2011-03-15 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
US7913339B2 (en) 2006-08-15 2011-03-29 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US10844533B2 (en) 2007-05-07 2020-11-24 Whirlpool Corporation Method for controlling a household washing machine

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7941885B2 (en) 2006-06-09 2011-05-17 Whirlpool Corporation Steam washing machine operation method having dry spin pre-wash
US7765628B2 (en) 2006-06-09 2010-08-03 Whirlpool Corporation Steam washing machine operation method having a dual speed spin pre-wash
US7665332B2 (en) 2006-08-15 2010-02-23 Whirlpool Corporation Steam fabric treatment appliance with exhaust
US7841219B2 (en) 2006-08-15 2010-11-30 Whirlpool Corporation Fabric treating appliance utilizing steam
US7905119B2 (en) 2007-08-31 2011-03-15 Whirlpool Corporation Fabric treatment appliance with steam generator having a variable thermal output
US8555676B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
US7861343B2 (en) 2007-08-31 2011-01-04 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US7918109B2 (en) 2007-08-31 2011-04-05 Whirlpool Corporation Fabric Treatment appliance with steam generator having a variable thermal output
US7966683B2 (en) 2007-08-31 2011-06-28 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US7690062B2 (en) 2007-08-31 2010-04-06 Whirlpool Corporation Method for cleaning a steam generator
US8037565B2 (en) 2007-08-31 2011-10-18 Whirlpool Corporation Method for detecting abnormality in a fabric treatment appliance having a steam generator
US8555675B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
AT507408B1 (de) 2009-03-05 2010-05-15 Artweger Gmbh & Co Dampfgenerator mit unterbrechungsfreiem dampfen und sicherer entleerung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996032607A1 (fr) * 1995-04-14 1996-10-17 Futura Steam S.R.L. Procede de remplissage automatique du reservoir d'un generateur de vapeur et dispositif servant a realiser ce procede
EP0843039A1 (fr) * 1996-11-13 1998-05-20 Seb S.A. Générateur de vapeur
EP1275767A1 (fr) * 2001-07-10 2003-01-15 V-Zug AG Sèche-linge ou machine à laver automatique avec dispositif de vaporisation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996032607A1 (fr) * 1995-04-14 1996-10-17 Futura Steam S.R.L. Procede de remplissage automatique du reservoir d'un generateur de vapeur et dispositif servant a realiser ce procede
EP0843039A1 (fr) * 1996-11-13 1998-05-20 Seb S.A. Générateur de vapeur
EP1275767A1 (fr) * 2001-07-10 2003-01-15 V-Zug AG Sèche-linge ou machine à laver automatique avec dispositif de vaporisation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008014924A1 (fr) * 2006-07-31 2008-02-07 Electrolux Home Products Corporation N.V. Processus pour commander une unité à vapeur d'un appareil ménager
EP1887123A1 (fr) * 2006-07-31 2008-02-13 Electrolux Home Products Corporation N.V. Méthode pour le réglage d'une unité de vapeur d'un appareil électroménager
RU2442849C2 (ru) * 2006-07-31 2012-02-20 Электролюкс Хоум Продактс Корпорейшн Н.В. Способ регулирования паровой установки в бытовом устройстве
US7886392B2 (en) 2006-08-15 2011-02-15 Whirlpool Corporation Method of sanitizing a fabric load with steam in a fabric treatment appliance
US7904981B2 (en) 2006-08-15 2011-03-15 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
US7913339B2 (en) 2006-08-15 2011-03-29 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US7753009B2 (en) 2006-10-19 2010-07-13 Whirlpool Corporation Washer with bio prevention cycle
US10844533B2 (en) 2007-05-07 2020-11-24 Whirlpool Corporation Method for controlling a household washing machine

Also Published As

Publication number Publication date
DE50310408D1 (de) 2008-10-09
EP1441175A3 (fr) 2005-05-11
DE10302972B4 (de) 2007-03-08
DE10302972A1 (de) 2004-08-12
EP1441175B1 (fr) 2008-08-27

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