EP2402498A1 - Procédé de fonctionnement d'une machine de traitement du linge à l'aide d'un dispositif de production de vapeur et machine de traitement du linge - Google Patents

Procédé de fonctionnement d'une machine de traitement du linge à l'aide d'un dispositif de production de vapeur et machine de traitement du linge Download PDF

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Publication number
EP2402498A1
EP2402498A1 EP10401094A EP10401094A EP2402498A1 EP 2402498 A1 EP2402498 A1 EP 2402498A1 EP 10401094 A EP10401094 A EP 10401094A EP 10401094 A EP10401094 A EP 10401094A EP 2402498 A1 EP2402498 A1 EP 2402498A1
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EP
European Patent Office
Prior art keywords
steam
operating
container
opening
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
EP10401094A
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German (de)
English (en)
Inventor
Hartmut Linnemann
Dirk Sieding
Stefan Brüggemann
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Priority to EP10401094A priority Critical patent/EP2402498A1/fr
Publication of EP2402498A1 publication Critical patent/EP2402498A1/fr
Ceased legal-status Critical Current

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    • D06F39/40—

Definitions

  • the invention further relates to a laundry treatment machine such as a washing machine, washer-dryer or dryer with a housing having a substantially circular housing opening which can be closed by a door and a substantially cylindrical container arranged in the housing for receiving the laundry to be treated with a substantially circular container opening.
  • a nozzle for spraying steam and a device for generating steam comprising a radiator, a temperature detecting means, an inlet opening and a steam outlet opening, which is injectable via a nozzle in the region of the edge of the container opening into the interior of the container, and a Control device for controlling the radiator and the water to be introduced into the steam generating device, for carrying out the method.
  • a front loadable washing machine with a tub for holding washing liquid and the laundry to be treated.
  • the washing machine further comprises a steam generator with a radiator, which can receive the liquid to be evaporated, wherein the radiator is provided for heating and vaporizing the liquid.
  • the washing machine has a device for spraying or introducing water into the tub, wherein the device has a nozzle in the edge region of the door opening.
  • the heater is heated to a predetermined temperature, for example at least 100 ° C, and then the liquid is admitted into the steam generator. In this way, jerky or continuous steam is generated.
  • the water supply to the steam generator is stopped again.
  • the water supply is switched on again, with this switching on and off of the water supply repeated several times.
  • the essential advantage of the method according to the invention is that during the generation of steam in the area the presence of steam in the tub or the drum is detected, in which the steam develops its effect. If a predetermined steam temperature is detected when the steam generating device is switched on due to a clogged or interrupted supply line, this is detected as a fault and a safety function, such as immediate shutdown of the active components for steam generation, is performed.
  • the steam temperature in the suds container is detected during the steam supply, the steam generation being below a lower limit value is terminated directly or indirectly by terminating the water inlet into the steam generating device.
  • the presence of the vapor is reliably detected and monitored.
  • the steam generation is terminated by indirect or immediate shutdown of the radiator. This ensures that no more activities emanate from the steam generating device more.
  • the steam generation is no longer provided for activation after the termination of the steam generation.
  • the user no longer has the opportunity to select and start the steam function.
  • the device then presents itself to the user as if the steam function or a steam generating device were not present.
  • an error counter is incremented after the termination of the steam generation, and after a predefined limit value of the error counter, the steam generation is no longer provided for activation.
  • the steam generating device is deactivated in a temporary blockage, but it can be reactivated later, if the error has resolved itself.
  • the default limit it is appropriate to set the default limit to a value in the range between 2 and 5. It has been found that after this frequency of failed attempts, there is a fault not self-repairable in the steam generator or steam lines.
  • the reactivation of the steam generation takes place by a cancellation of the deactivation state or by resetting the error counter. This can be done by programming the fault memory by the after-sales service after cleaning or repairing the steam generator or steam lines.
  • a message is displayed or communicated to the user in a non-activating steam generation.
  • the user is always informed clearly about the state of the steam generating device.
  • the invention also relates to a laundry treatment machine such as a washing machine, washer-dryer or dryer, comprising a housing with a substantially circular housing opening which can be closed by a door and a substantially cylindrical container arranged in the housing for receiving the laundry to be treated with a substantially circular container opening , a nozzle for spraying steam, a temperature detection means arranged on or in the container and a device for Generation of steam, which comprises a radiator, an inlet opening and an outlet opening for steam, which can be injected via a nozzle in the region of the edge of the container opening into the interior of the container, and a control device for controlling the water inlet to the steam generating device and the radiator, and an operating means for activating the steam generating device, wherein the control device is adapted to inhibit the selection possibility for the operating means for activating the steam generating device according to the above-mentioned method.
  • control device comprises a microcontroller, in which the function for providing the abovementioned method is provided by means of a computer program which is stored in a program memory of the microcontroller.
  • the error counter is provided by a writable and readable register located in the read-write memory of the microcontroller.
  • the temperature detection means is a temperature sensor which is set up to detect the temperature of the washing liquid present in the tub and / or of the admitted steam and to transmit it to the control device.
  • the temperature detection means is a temperature sensor which is set up to detect the temperature of the washing liquid present in the tub and / or of the admitted steam and to transmit it to the control device.
  • Fig. 1 is a purely schematic representation of a laundry treatment machine 1, here a washing machine, shown with a tub 2.
  • the position and direction information refer to the operational installation position of the laundry treatment machine.
  • a rotatably mounted and driven by an electric motor 13 drum 3 is arranged, which moves the washing 8 located in the tub 2 and in the drum 3.
  • the drum 3 is made in the present embodiment of stainless steel and provided with a plurality of openings for the flooding.
  • the washing liquid 7 or water is introduced, which is / s needed for cleaning or treating the laundry 8.
  • a radiator (not shown) is arranged in the lower region of the tub 2.
  • an inlet valve 15 is sketched, which is the running in of the water from the supply network controls.
  • the water is passed through the connecting pipe 14 in the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2.
  • the laundry treating machine 1 has a device 12 for generating steam, which is injected via a line 16 and a nozzle 17 connected thereto in the interior of the tub 2 and in the interior of the drum 3.
  • the nozzle 17 is in the upper region of the gasket 6, which provides the connection between the opening 9 in the tub 2 and the closable by the door 5 opening 10 in the housing 4, attached.
  • the laundry treatment machine 1 comprises a pump 21 which has a check valve 20 on its pressure side for the water 27 to be delivered.
  • the check valve prevents steam generated in the steam generating device 12 from flowing back out of the opening 18 via the pump 21.
  • a line 16 is connected, via which the steam or else Cyprusendes water is passed to the nozzle 17.
  • the nozzle 17 is in the upper area at the edge of the opening 9 in the treatment chamber, here in the region of the sealing sleeve 6, mounted, the nozzle 17 to the interior of the tub 2 shows, so that a good Dampfbesprühung in the tub 2 and in the drum. 3 located laundry 8 is provided.
  • a controller 29 controls operations for performing a laundry treatment program or program and performing steam generation, particularly, driving the inlet valve 15 of the heater 26 and the pump 21.
  • the steam generator 12 has one Alublock 26a, which cooperates as a heat-storing mass with the radiator 26. The increased heat requirement is particularly necessary at the beginning of steam generation, so that an explosive vapor cloud can be generated, which merges into a gentler, continuous steaming.
  • the pump 21 receives the water to be delivered 27 from a tank 22 which is filled via the controllable inlet valve.
  • a free flow path 11a is arranged between the inlet valve 15 and the tank 22 in the region of the induction box 11.
  • a dip tube 23 is also used, which provides via the line 28 a direct connection to a further inlet opening 24 of the steam generating device 12, bypassing the pump 21.
  • an overflow is provided over the water from the tank 22 overflowing water through the dip tube 23, through the connecting line 28 to the steam generating device 12 and then passed through the line 16 to the nozzle 17 and from there into the interior of the drum 3 , After closing the inlet valve 15, a portion of the water 27 runs out of the tank until it has reached the level of the nozzle 17.
  • the steam generating device 12 is arranged in an advantageous embodiment at a gradient to the outlet opening 19 so that it runs at least almost empty, so that a flushing takes place, whereby limescale and dirt deposits in the steam generating device 12 are prevented or at least reduced.
  • the steam outlet is prevented by the dip tube 23 from the further inlet opening 24 by means of a tube forming acting as a siphon.
  • a pressure relief valve is provided which prevents too high a pressure in the steam generating device 12.
  • a temperature sensor 30 is mounted, which is adapted to detect the water temperature in the tub 2 and to transmit to the control device 29 for controlling the radiator.
  • the sensor 30 is further adapted to detect the presence of steam, wherein the monitoring of the vapor flow into the tub 2 is based on an increasing temperature within a predetermined time.
  • a dryer with a rotatable drum 3 can be used, which contains no tub 2 and no sealing sleeve 6.
  • the nozzle 17 is arranged in the edge region of the housing opening, so that the steam can be injected into the interior of the drum 3.
  • Fig. 2 the sequence of the method for operating the washing machine is outlined using a state diagram.
  • the steam function will be in the Sen state. In this state, the user can select or turn on the steam function.
  • the state Sact is changed. In this state, steam is generated and supplied to the tub 2 and the drum 3.
  • the active steam function is based on Fig. 3 outlined and further explained below.
  • the state Sen is changed so that the user again has the possibility to switch on the steam function.
  • the error counter Cnt reaches the preset maximum value Cmax.
  • the state Sfa is changed.
  • the steam function is blocked in such a way that the user can no longer turn on the steam function.
  • the selection option for the user is prevented, so that no longer the steam function on the control panel is offered.
  • the error counter Cnt can be reset by means of a programming function. The customer service can perform this initialization after cleaning or repairing the steam generator 12 so that thereafter the steam function is available to the user.
  • an error message or status message can be output to the user.
  • Fig. 3 the timing for the steam generation is outlined in a diagram when the steam generating device 12 is activated or turned on and works properly and all lines for steam control are free, so that the steam from the steam generating device in the drum 3 and in the tub 2 arrives.
  • the radiator 26 (heat) of the steam generator 12 is turned on, which converts a power of 1 KW into heat in this example. It can be seen from the temperature curve Temp that the temperature is rising steadily.
  • the temperature TT in the tub 2 now rises steadily.
  • the water inlet into the steam generating device 12 is now regulated by means of a control that sets a substantially uniform temperature level Th in the tub 2.
  • the control in this example is such that the water inlet is progressively reduced when the temperature inside the steam generator 12 reaches a lower limit, in this example the flow rate is reduced to Vmin, about 0.3 ml / sec or according to the dashed line Line slowly decreasing to the value of 0.3 ml / sec decreased.
  • the temperature within the steam generating device 12 does not decrease so much until it rises again.
  • the process is repeated several times as long as the steam injection is activated.
  • the radiator 26 remains turned on.
  • the time intervals are not absolutely fixed, because it is a temperature-dependent control.
  • the steam generation time with the reduced amount of water is about 10 to 30 seconds in this example.
  • Other flow rates or other continuous changes in flow rates are also possible if advantageous for the laundry to be treated.
  • Fig. 4 shows the timing for the steam generation in a diagram when the steam generating device 12 is activated, but the steam does not reach the liquor container 2 in the intended amount.
  • the steam outlet from the steam generating device 12 is clogged, for example, by loose lime deposits, so that the steam can not escape from the steam generating device 12.
  • the dashed arrow indicates the temperature profile TT with correct steam injection into the tub 2. Since the expected temperature value Tmin has not been reached, the steam generating device 12 is completely switched off, that is, the radiator 26 and the water injection pump 21 are deactivated. An error counter Cnt is incremented in this case.
  • the error counter is implemented as a register or memory in the controller 29, and can be manipulated accordingly by means of a microprocessor.

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  • Control Of Washing Machine And Dryer (AREA)
EP10401094A 2010-07-02 2010-07-02 Procédé de fonctionnement d'une machine de traitement du linge à l'aide d'un dispositif de production de vapeur et machine de traitement du linge Ceased EP2402498A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10401094A EP2402498A1 (fr) 2010-07-02 2010-07-02 Procédé de fonctionnement d'une machine de traitement du linge à l'aide d'un dispositif de production de vapeur et machine de traitement du linge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10401094A EP2402498A1 (fr) 2010-07-02 2010-07-02 Procédé de fonctionnement d'une machine de traitement du linge à l'aide d'un dispositif de production de vapeur et machine de traitement du linge

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EP2402498A1 true EP2402498A1 (fr) 2012-01-04

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105041B3 (de) * 2012-06-12 2013-05-08 Miele & Cie. Kg Waschmaschine oder Waschtrockner mit einer Einrichtung zum Umfluten und Aufheizen der Waschflotte
EP2623665A1 (fr) * 2012-02-06 2013-08-07 LG Electronics, Inc. Machine de laverie comprenant une buse et un élément chauffant dans une conduite de séchage et procédé de commande correspondant
DE102012105091A1 (de) 2012-06-13 2013-12-19 Miele & Cie. Kg Dampferzeugungseinrichtung zur Behandlung von Wäsche mit Dampf in einer Wäschebehandlungsmaschine
EP2740827A1 (fr) 2012-12-04 2014-06-11 Miele & Cie. KG Lave-linge doté d'un générateur vapeur et son procédé d'utilisation
EP2740826A1 (fr) 2012-12-04 2014-06-11 Miele & Cie. KG Lave-linge avec dispositif de production de vapeur
EP2832914A4 (fr) * 2012-03-30 2015-04-29 Panasonic Corp Dispositif de traitement de vêtements
DE102018105920A1 (de) * 2018-03-14 2019-09-19 Miele & Cie. Kg Verfahren zum Betreiben einer Wäschebehandlungsmaschine mit Dampferzeugungseinrichtung und Wäschebehandlungsmaschine
EP3366626B1 (fr) 2017-02-22 2021-01-06 Otis Elevator Company Système de sécurité d'ascenseur et procédé de surveillance d'un système d'ascenseur

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5940915A (en) * 1997-06-11 1999-08-24 Daewoo Electronics Co., Ltd. Error checking device for washing machine and checking method thereof
EP1659205A2 (fr) 2004-11-18 2006-05-24 Samsung Electronics Co., Ltd. Machine à laver
EP1696067A1 (fr) * 2005-02-25 2006-08-30 LG Electronics, Inc. Machine à laver et procédé de commande associé
WO2006101365A1 (fr) 2005-03-25 2006-09-28 Lg Electronics Inc. Procede de fonctionnement d'une machine de blanchisserie
EP1813709A2 (fr) 2006-01-26 2007-08-01 Samsung Electronics Co., Ltd. Machine à laver le linge ayant un générateur de vapeur et méthode pour controler celui-ci.
EP2031114A1 (fr) 2007-08-31 2009-03-04 Whirlpool Corporation Procédé de détection d'anomalie dans un appareil de traitement de tissus doté d'un générateur de vapeur
EP1507031B1 (fr) 2003-08-13 2009-07-22 Lg Electronics Inc. Appareil de chauffage pour une machine à laver et méthode pour le commander
EP2208819A1 (fr) * 2009-01-19 2010-07-21 Whirpool Corporation Procédé pour détecter la condition de fin de vie d'un vaporisateur utilisé dans des appareils domestiques et appareil domestique utilisant ledit procédé

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5940915A (en) * 1997-06-11 1999-08-24 Daewoo Electronics Co., Ltd. Error checking device for washing machine and checking method thereof
EP1507031B1 (fr) 2003-08-13 2009-07-22 Lg Electronics Inc. Appareil de chauffage pour une machine à laver et méthode pour le commander
EP1659205A2 (fr) 2004-11-18 2006-05-24 Samsung Electronics Co., Ltd. Machine à laver
EP1696067A1 (fr) * 2005-02-25 2006-08-30 LG Electronics, Inc. Machine à laver et procédé de commande associé
WO2006101365A1 (fr) 2005-03-25 2006-09-28 Lg Electronics Inc. Procede de fonctionnement d'une machine de blanchisserie
EP1813709A2 (fr) 2006-01-26 2007-08-01 Samsung Electronics Co., Ltd. Machine à laver le linge ayant un générateur de vapeur et méthode pour controler celui-ci.
EP2031114A1 (fr) 2007-08-31 2009-03-04 Whirlpool Corporation Procédé de détection d'anomalie dans un appareil de traitement de tissus doté d'un générateur de vapeur
EP2208819A1 (fr) * 2009-01-19 2010-07-21 Whirpool Corporation Procédé pour détecter la condition de fin de vie d'un vaporisateur utilisé dans des appareils domestiques et appareil domestique utilisant ledit procédé

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9334601B2 (en) 2012-02-06 2016-05-10 Lg Electronics Inc. Control method of laundry machine
US9644306B2 (en) 2012-02-06 2017-05-09 Lg Electronics Inc. Control method of laundry machine
US9328449B2 (en) 2012-02-06 2016-05-03 Lg Electronics Inc. Control method of laundry machine
US9085843B2 (en) 2012-02-06 2015-07-21 Lg Electronics Inc. Control method of laundry machine
US9328448B2 (en) 2012-02-06 2016-05-03 Lg Electronics Inc. Laundry machine with drying duct comprising a nozzle
EP2623665A1 (fr) * 2012-02-06 2013-08-07 LG Electronics, Inc. Machine de laverie comprenant une buse et un élément chauffant dans une conduite de séchage et procédé de commande correspondant
EP2832914A4 (fr) * 2012-03-30 2015-04-29 Panasonic Corp Dispositif de traitement de vêtements
DE102012105041B3 (de) * 2012-06-12 2013-05-08 Miele & Cie. Kg Waschmaschine oder Waschtrockner mit einer Einrichtung zum Umfluten und Aufheizen der Waschflotte
DE102012105091A1 (de) 2012-06-13 2013-12-19 Miele & Cie. Kg Dampferzeugungseinrichtung zur Behandlung von Wäsche mit Dampf in einer Wäschebehandlungsmaschine
DE102012105091B4 (de) 2012-06-13 2019-12-19 Miele & Cie. Kg Dampferzeugungseinrichtung zur Behandlung von Wäsche mit Dampf in einer Wäschebehandlungsmaschine
EP2740826A1 (fr) 2012-12-04 2014-06-11 Miele & Cie. KG Lave-linge avec dispositif de production de vapeur
EP2740827A1 (fr) 2012-12-04 2014-06-11 Miele & Cie. KG Lave-linge doté d'un générateur vapeur et son procédé d'utilisation
EP3366626B1 (fr) 2017-02-22 2021-01-06 Otis Elevator Company Système de sécurité d'ascenseur et procédé de surveillance d'un système d'ascenseur
DE102018105920A1 (de) * 2018-03-14 2019-09-19 Miele & Cie. Kg Verfahren zum Betreiben einer Wäschebehandlungsmaschine mit Dampferzeugungseinrichtung und Wäschebehandlungsmaschine
DE102018105920B4 (de) * 2018-03-14 2020-10-01 Miele & Cie. Kg Verfahren zum Betreiben einer Wäschebehandlungsmaschine mit Dampferzeugungseinrichtung und Wäschebehandlungsmaschine

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