EP1087052A2 - Waschmaschine mit Regelung- und Steuerungsvorrichtungen - Google Patents

Waschmaschine mit Regelung- und Steuerungsvorrichtungen Download PDF

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Publication number
EP1087052A2
EP1087052A2 EP00116500A EP00116500A EP1087052A2 EP 1087052 A2 EP1087052 A2 EP 1087052A2 EP 00116500 A EP00116500 A EP 00116500A EP 00116500 A EP00116500 A EP 00116500A EP 1087052 A2 EP1087052 A2 EP 1087052A2
Authority
EP
European Patent Office
Prior art keywords
washing
tub
sensors
liquor
washing machine
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.)
Withdrawn
Application number
EP00116500A
Other languages
English (en)
French (fr)
Other versions
EP1087052A3 (de
Inventor
Giuseppe Frucco
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 Zanussi Elettrodomestici SpA
Electrolux Zanussi SpA
Original Assignee
Electrolux Zanussi Elettrodomestici SpA
Electrolux Zanussi SpA
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 Electrolux Zanussi Elettrodomestici SpA, Electrolux Zanussi SpA filed Critical Electrolux Zanussi Elettrodomestici SpA
Publication of EP1087052A2 publication Critical patent/EP1087052A2/de
Publication of EP1087052A3 publication Critical patent/EP1087052A3/de
Withdrawn legal-status Critical Current

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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26—Imbalance; Noise level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/16—Imbalance
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements

Definitions

  • the present invention refers to a washing machine, such as a clothes washing or combined clothes washing and drying machine, or even a dishwashing machine, particularly although not solely adapted for use in household, ie. residential applications.
  • Washing machines of the above cited kind are generally known to comprise a structural outer casing having a substantially parallelepiped shape, and an inner washing tub or vessel adapted to contain the washload items during the operating cycles of the machine.
  • the washing tub which encloses a drum rotating for instance about a more or less horizontal axis, is a part of a washing assembly that is elastically suspended inside said outer casing by means of sprung and preferably also vibration-damping means.
  • the washing machine also comprises, further to the already mentioned pumping means, various functional component parts that are electrically interconnected, such as driving means for the rotating drum, programming and sequencing means for the operating cycles that can be selected by the user, electromagnetic valves to let the washing and rinsing liquor into the tub or vessel, heating elements (usually of the electric resistance type), regulation and control means of the temperature and the level of the washing liquor and, in the more sophisticated washing machine models, also means for controlling and possibly even adjusting the dynamic trim of the washing or suspended assembly in order to compensate for possible imbalance states that may be brought about by an unbalanced distribution of the washload.
  • various functional component parts that are electrically interconnected, such as driving means for the rotating drum, programming and sequencing means for the operating cycles that can be selected by the user, electromagnetic valves to let the washing and rinsing liquor into the tub or vessel, heating elements (usually of the electric resistance type), regulation and control means of the temperature and the level of the washing liquor and, in the more sophisticated washing machine models, also means for controlling and possibly even adjusting the dynamic trim of the
  • the necessary wiring is rather complex, the more so considering that the above mentioned regulation and control means are physically situated in positions that may be even quite distant from each other.
  • the wiring may therefore be rather easily exposed to assembly errors and certainly not such as to ensure a maximum extent of reliability, further to contributing to a certainly not negligible extent to the overall manufacturing costs of the washing machine, which thing, as it is true in connection with all products intended for the consumer market, is a factor of paramount industrial importance.
  • the washing machine illustrated in Figure 1 comprises a structural outer casing 1 in the shape of substantially a parallelepiped, to which there is suspended by means of spring means 2 and friction-type vibration-dampers 3 a washing or suspended assembly 4, which in turn comprises a washing tub 5 and a drum 6 that is enclosed in the same tub and is adapted to rotate about a more or less horizontal axis X.
  • a washing or suspended assembly 4 which in turn comprises a washing tub 5 and a drum 6 that is enclosed in the same tub and is adapted to rotate about a more or less horizontal axis X.
  • such items as the opening for loading the clothes into the washing assembly which can be arranged either frontally or on the top according to the washing machine models, and the related doors or lids, are not shown in the Figure.
  • a washing machine also comprises a number of throughout per sè known functional component parts, which are only illustrated either partially or in a simplified manner in the accompanying Figure 1.
  • these component parts the ones that more closely relate to or are of relevance in connection with the present invention are the motor 7 used to drive the drum 6; an electromagnetic valve group 8 used to fill water from the supply mains into the washing tub 5 through a piping system 9 in view of washing and rinsing the clothes; pumping means 10, whose suction or return side is connected via a bellows-like flexible connecting tube 12 to the lowest point of the tub 5; and a programme sequence control unit 13 for the selection of the desired operating cycles by the user.
  • the per sè well-known electric heating element used to heat up the washing liquor is not shown here.
  • the sensors associated to the regulation and control means of the washing machine are brought together and, actually, arranged and enclosed in a single sealed, ie. water-tight casing 20, which is situated on the inner surface of the tub 5 in a position below the level that is generally indicated at L in Figure 1.
  • This is the minimum or lowest level that can be reached by the washing or rinsing liquor inside the tub 5 during the operating cycles of the machine.
  • Schematically illustrated with chain lines, and generally indicated at 30, in the same Figure 1 are also the electric interconnections between the various functional component parts, among which the selective activation of the above cited sensors in accordance with the individual phases of the operating cycles performed by the machine.
  • Figure 2 illustrates in a more detailed manner the arrangement inside the casing 20, which is in the shape of a capsule, is preferably made of a metal (eg. stainless steel) capable of withstanding both the corrosive action of the detergents and the clothes washing temperatures, and is surrounded by an appropriate water-tight sealing ring (not shown).
  • a thermistor-based sensor eg., a thermistor-based sensor
  • 22 a sensor, eg.
  • the piezoresistive type which, via a small tube 23 and under the interposition of a small insulating disk 24, is connected to the bellows-like flexible connecting tube 12 (as this is shown in Figure 1): at 25 an accelerometric sensor; at 26 the board of a printed circuit on to which the above cited sensors are materially deposited; and at 27 the multi-pole terminal of the corresponding electric interconnection lines 30.
  • the thermistor-based sensor 21 performs a twofold task, ie., further to the regulation and control of the temperature of the liquor inside the washing assembly 4 (by acting on the afore mentioned heating element), it in fact also ensures the thermal compensation of the other sensors enclosed within the same casing 20, as necessary in those phases of the operating cycles of the machine in which the liquor is hot, in accordance with the commands transmitted via the interconnecting lines 30 by the programme sequence control unit 13. In this way, unacceptable measurement errors are effectively avoided, which may be brought about by differences between the actual operating temperature and the rated temperature of the sensors 22 and 25.
  • the sensor 22 performs the regulation and the control of the level of the liquor within the washing assembly 4 (by acting of the electromagnetic valve group 8 rather than on the pumping means 10, depending on the individual phases of the operating cycles performed by the machine, in accordance with the commands received from the programme sequence control unit 13).
  • the accelerometric sensor 25 ensures the detection of the oscillations of the washing assembly 4, in particular during the transition periods from the low-speed phases of the operating cycles of the machine to the high-speed ones.
  • feed-back means that are adapted to modify the dynamic trim of the same suspended assembly so as to eliminate the possibly detected dynamic imbalance states thereof, according to methods that are per sè well-known to those skilled in the art.
  • all three above-cited sensors 21, 22 and 25 are integrated into a single solid-state component part (microchip), in a manner that obviously boosts to a considerable extent the already significant advantages mentioned above.
  • the present invention may be developed by those skilled in the art into embodiments that may differ from the afore illustrated one, and that it may also be implemented in some simplified versions.
  • the accelerometric sensor will certainly be omitted in the case that the machine is a dishwasher, and may even be omitted if the machine is a clothes washer spinning at a very low rotating speed of the drum (ie. up to max. 500 to 600 rpm).
  • the casing containing the sensors may also be mounted directly on the connecting tube 12 provided between the tub 5 and the pumping means 10, thereby doing away with the small tube 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP00116500A 1999-09-23 2000-07-31 Waschmaschine mit Regelung- und Steuerungsvorrichtungen Withdrawn EP1087052A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN990075 1999-09-23
IT1999PN000075A IT1311711B1 (it) 1999-09-23 1999-09-23 Macchina lavatrice provvista di mezzi di regolazionee controllo

Publications (2)

Publication Number Publication Date
EP1087052A2 true EP1087052A2 (de) 2001-03-28
EP1087052A3 EP1087052A3 (de) 2003-09-10

Family

ID=11395569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00116500A Withdrawn EP1087052A3 (de) 1999-09-23 2000-07-31 Waschmaschine mit Regelung- und Steuerungsvorrichtungen

Country Status (2)

Country Link
EP (1) EP1087052A3 (de)
IT (1) IT1311711B1 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003056094A1 (en) * 2001-12-27 2003-07-10 Lg Electronics Inc. Washing machine
WO2003014455A3 (de) * 2001-08-10 2003-11-06 Bsh Bosch Siemens Hausgeraete Wäschebehandlungsgerät mit unwuchtüberwachung, mit erkennung des niveaus oder mit erkennung der beladung
EP1956263A1 (de) * 2007-02-07 2008-08-13 Electrolux Home Products Corporation N.V. Schwingungsisolierte Montage oder Pumpeneinheit für Haushaltsgerät
WO2009027242A1 (de) 2007-08-24 2009-03-05 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung und verfahren zur ermittlung eines füllstandes innerhalb eines laugenbehälters einer waschmaschine
DE102008017284A1 (de) 2008-04-04 2009-10-08 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine mit analogem Drucksensor sowie Verfahren zu ihrem Betrieb
ITTO20100957A1 (it) * 2010-12-01 2012-06-02 Elbi Int Spa Macchina lavatrice con rilevazione delle vibrazioni della vasca o camera di lavaggio
US8695381B2 (en) 2008-03-28 2014-04-15 Electrolux Home Products, Inc. Laundering device vibration control
EP2785906A1 (de) * 2011-11-29 2014-10-08 BSH Bosch und Siemens Hausgeräte GmbH Haushaltswaschmaschine und ein verfahren zum bestimmen der beladungsmenge von wäsche in der wäschetrommel einer haushaltwaschmaschine
US20190048508A1 (en) * 2016-03-24 2019-02-14 Electrolux Appliances Aktiebolag Laundry washing machine comprising a water softening device
US10876246B2 (en) 2018-09-18 2020-12-29 Haier Us Appliance Solutions, Inc. Level sensor for a bulk dispense tank in a washing machine appliance
US11136706B2 (en) 2016-03-24 2021-10-05 Electrolux Appliances Aktiebolag Laundry washing machine comprising a water softening device and a local electronic control unit
US11220778B2 (en) 2017-01-12 2022-01-11 Electrolux Appliances Aktiebolag Appliance comprising a water inlet module
JP2022538942A (ja) * 2019-08-29 2022-09-06 パナソニックＩｐマネジメント株式会社 衣類処理装置の流体測温装置及び衣類処理装置
DE102021203780A1 (de) 2021-04-16 2022-10-20 BSH Hausgeräte GmbH System zur Ermittlung von waschmechanischen Daten in einem Wäschebehandlungsgerät sowie Verfahren zu seinem Betrieb

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1438178A1 (de) * 1962-05-17 1969-05-14 Siemens Elektrogeraete Gmbh Einrichtung zur Steuerung eines Zeitprogramms fuer selbsttaetig arbeitende Haushaltsmaschinen
DE1485100A1 (de) * 1965-06-29 1970-01-15 Reichert Dipl Ing Werner Vorrichtung zum Steuern eines Waschautomaten od.dgl.
US3707857A (en) * 1971-09-20 1973-01-02 Whirlpool Co Multi-purpose sensor assembly for automatic washer
US3846615A (en) * 1973-04-05 1974-11-05 Hobart Mfg Co Liquid temperature control and low liquid level detector
GB2073257B (en) * 1980-02-19 1983-07-27 Kenwood Mfg Co Ltd Washing machines and spindriers
US5178009A (en) * 1990-03-08 1993-01-12 Industrial Engineering And Equipment Company Integral temperature and liquid level sensor and control
US5446531A (en) * 1994-05-20 1995-08-29 Honeywell Inc. Sensor platform for use in machines for washing articles

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7536881B2 (en) 2001-08-10 2009-05-26 Bsh Bosch Und Siemens Hausgeraete Gmbh Linen treatment device with imbalance monitoring, level monitoring or load monitoring
WO2003014455A3 (de) * 2001-08-10 2003-11-06 Bsh Bosch Siemens Hausgeraete Wäschebehandlungsgerät mit unwuchtüberwachung, mit erkennung des niveaus oder mit erkennung der beladung
EP1643027A1 (de) * 2001-08-10 2006-04-05 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einem Beschleunigungssensor
US7958755B2 (en) 2001-08-10 2011-06-14 Bsh Bosch Und Siemens Hausgeraete Gmbh Linen treatment device with imbalance monitoring, level monitoring, or load monitoring
CN1309894C (zh) * 2001-12-27 2007-04-11 Lg电子株式会社 洗衣机
US7421862B2 (en) 2001-12-27 2008-09-09 Lg Electronics Inc. Washing machine with temperature sensor arrangement
WO2003056094A1 (en) * 2001-12-27 2003-07-10 Lg Electronics Inc. Washing machine
EP1956263A1 (de) * 2007-02-07 2008-08-13 Electrolux Home Products Corporation N.V. Schwingungsisolierte Montage oder Pumpeneinheit für Haushaltsgerät
WO2009027242A1 (de) 2007-08-24 2009-03-05 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung und verfahren zur ermittlung eines füllstandes innerhalb eines laugenbehälters einer waschmaschine
US9096966B2 (en) 2007-08-24 2015-08-04 BSH Hausgerãte GmbH Device and method for determining a fill level within a suds tub of a washing machine
EA016379B1 (ru) * 2007-08-24 2012-04-30 Бсх Бош Унд Сименс Хаусгерете Гмбх Устройство и способ определения уровня заполнения бака стиральной машины
CN101827972B (zh) * 2007-08-24 2012-05-30 Bsh博世和西门子家用器具有限公司 用于确定洗衣机的洗涤桶内的充注水平的装置和方法
US8695381B2 (en) 2008-03-28 2014-04-15 Electrolux Home Products, Inc. Laundering device vibration control
DE102008017284A1 (de) 2008-04-04 2009-10-08 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine mit analogem Drucksensor sowie Verfahren zu ihrem Betrieb
DE102008017284B4 (de) 2008-04-04 2020-06-25 BSH Hausgeräte GmbH Waschmaschine mit analogem Drucksensor sowie Verfahren zu ihrem Betrieb
ITTO20100957A1 (it) * 2010-12-01 2012-06-02 Elbi Int Spa Macchina lavatrice con rilevazione delle vibrazioni della vasca o camera di lavaggio
US10060068B2 (en) 2010-12-01 2018-08-28 Elbi International S.P.A. Washing machine with detection of vibrations of the washing tub or chamber
WO2012073200A3 (en) * 2010-12-01 2012-07-26 Elbi International S.P.A. Washing machine with detection of vibrations of the washing tub or chamber
EP2785906A1 (de) * 2011-11-29 2014-10-08 BSH Bosch und Siemens Hausgeräte GmbH Haushaltswaschmaschine und ein verfahren zum bestimmen der beladungsmenge von wäsche in der wäschetrommel einer haushaltwaschmaschine
US20190048508A1 (en) * 2016-03-24 2019-02-14 Electrolux Appliances Aktiebolag Laundry washing machine comprising a water softening device
US11136706B2 (en) 2016-03-24 2021-10-05 Electrolux Appliances Aktiebolag Laundry washing machine comprising a water softening device and a local electronic control unit
US11193233B2 (en) * 2016-03-24 2021-12-07 Electrolux Appliances Aktiebolag Laundry washing machine comprising a water softening device
US11220778B2 (en) 2017-01-12 2022-01-11 Electrolux Appliances Aktiebolag Appliance comprising a water inlet module
US10876246B2 (en) 2018-09-18 2020-12-29 Haier Us Appliance Solutions, Inc. Level sensor for a bulk dispense tank in a washing machine appliance
JP2022538942A (ja) * 2019-08-29 2022-09-06 パナソニックＩｐマネジメント株式会社 衣類処理装置の流体測温装置及び衣類処理装置
DE102021203780A1 (de) 2021-04-16 2022-10-20 BSH Hausgeräte GmbH System zur Ermittlung von waschmechanischen Daten in einem Wäschebehandlungsgerät sowie Verfahren zu seinem Betrieb

Also Published As

Publication number Publication date
ITPN990075A1 (it) 2001-03-23
EP1087052A3 (de) 2003-09-10
IT1311711B1 (it) 2002-03-19

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