EP0750065A1 - Dispositif et procédé pour la détermination du balourd dans une machine à laver à tambour - Google Patents

Dispositif et procédé pour la détermination du balourd dans une machine à laver à tambour Download PDF

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Publication number
EP0750065A1
EP0750065A1 EP96106878A EP96106878A EP0750065A1 EP 0750065 A1 EP0750065 A1 EP 0750065A1 EP 96106878 A EP96106878 A EP 96106878A EP 96106878 A EP96106878 A EP 96106878A EP 0750065 A1 EP0750065 A1 EP 0750065A1
Authority
EP
European Patent Office
Prior art keywords
unbalance
drum
speed
determining
riser
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
EP96106878A
Other languages
German (de)
English (en)
Other versions
EP0750065B1 (fr
Inventor
Rudolf Herden
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
Publication of EP0750065A1 publication Critical patent/EP0750065A1/fr
Application granted granted Critical
Publication of EP0750065B1 publication Critical patent/EP0750065B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise
    • 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
    • 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

Definitions

  • the invention relates to a device for determining the imbalance of a loaded drum in a washing machine with a swinging suspended tub, in which the drum is rotatably supported and driven by a motor.
  • the invention relates to a method for determining the unbalance in such a washing machine.
  • the invention also relates to a method for controlling the spinning process in such a washing machine.
  • a washing machine with a level sensor which consists of a riser arranged in the drain area of the tub and a pressure measuring device connected to it.
  • the invention presents the problem of disclosing a device or a method for determining the unbalance of the type mentioned at the outset, which can be used in a simple manner and in a wide speed range.
  • the invention has the problem of disclosing a method for controlling the spinning process of a washing machine using a device for determining the unbalance of the type mentioned at the beginning, in which the dewatering of unbalances is taken into account.
  • An expedient development of the device results from the arrangement of a membrane transverse to the flow direction in the riser. This results in a simple, easy-to-manufacture arrangement for generating an unbalance-dependent pressure signal component.
  • the arrangement of openings in the membrane avoids falsification of the quasi-static signal for level measurement.
  • a plurality of devices for generating pressure signals dependent on the vibrations of the tub are arranged in the riser, their natural frequencies being matched to different speed ranges of the drum speed. This ensures that a sufficiently amplified dynamic signal component is generated in each of these speed ranges.
  • the pressure sensor of the level sensor of the washing machine is used. This saves the cost of an additional sensor.
  • the drum (1) is rotatably mounted in the tub (2) in a known manner. It is driven by a motor (3).
  • a tachometer generator (4) coupled to the motor (3) picks up a motor speed signal for control purposes.
  • a riser (6) is arranged at the outflow area (5) of the tub (2), at the other end of which there is an analog pressure sensor (7).
  • the water supply is shown in simplified form in the drawing, so that only the inflow through the detergent dispenser drawer (8) is symbolized.
  • the signal outputs (9) of the tachometer generator (4) and the analog pressure sensor (7) are connected to the program control (10) of the washing machine.
  • the arrangement of a membrane (13) loaded with a weight (14) in the riser (6) in front of the pressure sensor (7) creates a system which, in addition to the quasi-static pressure changes caused by level differences in the washing liquid in the tub (2) , also reacts to accelerations of the tub (2) - riser (6) system. Since these accelerations are caused primarily by deflections of the drum (1) due to unbalance, the dynamic signal component of the pressure sensor (7) represents the size of the unbalance of the laundry in the drum (1). Falsification of the quasi-static signal component is prevented by making openings (11) in the membrane (13).
  • FIG. 2 shows an enlarged view of a riser (6) in which two weight-loaded membranes (13a, b) are arranged. Due to the selection of certain weights (14) and / or spring constants of the membrane (13), these have natural frequencies which are matched to different speed ranges.
  • a high-resolution pressure sensor (7) preferably an analog pressure sensor (7), must be used as the pressure sensor (7) in order to be able to detect the dynamic signal components. So that both the water level and the unbalance-related deflections of the tub (2) can be sensed, the quasi-static and dynamic signal components must be separated in the program control (10). For this reason, a microprocessor controller (10) is preferably used as the control device.
  • FIG. 3 shows a speed-time diagram to explain the method according to the invention for controlling the spinning process.
  • the drum (1) is first accelerated from the washing speed n W (approx. 50 rpm) to a first measuring speed n 1 ( ⁇ 100 rpm) below the resonance speed n R (300-500 rpm).
  • the laundry must lie against the drum jacket at this speed (n 1 ), so that any imbalances have already formed.
  • the unbalance is determined by the microprocessor control (10). This can advantageously be done by the method described above.
  • the drum (1) is further accelerated to a second measuring speed n 2 (800 rpm) above the resonance speed n R (-). Since the unbalance is checked again here, the unbalance limit can be set significantly higher than in the known single-stage unbalance determination method.
  • the microprocessor control (10) brakes the drum (1) to such an extent that the contact speed n A is undershot and the laundry can be redistributed. Then the spin cycle starts again ( ⁇ - ⁇ - ⁇ ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP96106878A 1995-06-23 1996-05-02 Dispositif et procédé pour la détermination du balourd dans une machine à laver à tambour Expired - Lifetime EP0750065B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19522393A DE19522393C2 (de) 1995-06-23 1995-06-23 Vorrichtung und Verfahren zur Bestimmung der Unwucht bei einer Trommelwaschmaschine
DE19522393 1995-06-23

Publications (2)

Publication Number Publication Date
EP0750065A1 true EP0750065A1 (fr) 1996-12-27
EP0750065B1 EP0750065B1 (fr) 1999-09-22

Family

ID=7764801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106878A Expired - Lifetime EP0750065B1 (fr) 1995-06-23 1996-05-02 Dispositif et procédé pour la détermination du balourd dans une machine à laver à tambour

Country Status (3)

Country Link
EP (1) EP0750065B1 (fr)
DE (3) DE19549526C2 (fr)
ES (1) ES2136340T3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879913A1 (fr) * 1997-05-21 1998-11-25 Electrolux Zanussi S.p.A. Procédé pour équilibrer une machine à laver et machine à laver utilisant un tel procédé
EP0885993A1 (fr) * 1997-06-18 1998-12-23 Electrolux Zanussi S.p.A. Machine à laver avec dispositif d'equilibrage
FR2767194A1 (fr) * 1997-08-11 1999-02-12 Elbi Int Spa Machine fonctionnelle et utilisation d'un transducteur de pression dans une machine fonctionnelle
EP0967318A1 (fr) * 1998-06-27 1999-12-29 Miele & Cie. GmbH & Co. Machine à laver avec détecteur de niveau et dispositif pour mesurer le déplacement de la cuve engendré par le balourd
EP1362946A2 (fr) * 2002-05-17 2003-11-19 Lg Electronics Inc. Procédé pour commander l'essorage dans une machine à laver à tambour
EP1598466A1 (fr) * 2004-05-21 2005-11-23 Samsung Electronics Co., Ltd. Machine à laver avec dispositif de détection
DE102005028253B3 (de) * 2005-06-17 2006-11-02 Emz-Hanauer Gmbh & Co. Kgaa Vorrichtung und Verfahren zur Erfassung der Unwucht einer drehbaren Komponente eines Haushaltsgeräts und Haushaltsgerät damit
CN1332182C (zh) * 2004-05-21 2007-08-15 三星电子株式会社 压力和振动检测装置
WO2010076148A1 (fr) 2008-12-30 2010-07-08 Arcelik Anonim Sirketi Lave-linge comprenant un siphon
CN108708135A (zh) * 2018-04-11 2018-10-26 青岛海尔洗衣机有限公司 洗涤控制方法和洗衣机
CN109837698A (zh) * 2017-11-24 2019-06-04 青岛海尔洗衣机有限公司 一种衣物处理装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616635B4 (de) * 1996-04-26 2007-09-27 AEG Hausgeräte GmbH Verfahren und Vorrichtung zur Unwuchterfassung einer Waschmaschine
DE19947307C1 (de) * 1999-10-01 2000-11-23 Miele & Cie Verfahren zum Waschen von Wäsche in einer Waschmaschine
DE19952464C2 (de) * 1999-10-29 2002-05-08 Miele & Cie Verfahren zum Auswuchten eines rotierenden Körpers, der durch einen geregelten Antrieb in Rotation versetzt wird, und Verwendung des Verfahrens
DE10110854C5 (de) * 2000-04-07 2010-03-04 Miele & Cie. Kg Vorrichtung zur Bestimmung der Unwucht in einer Trommelwaschmaschine
DE10141195A1 (de) * 2001-08-22 2003-03-06 Aeg Hausgeraete Gmbh Verfahren zur Erfassung einer Unwucht bei einer Waschmaschine sowie Waschmaschine mit einem Laugenbehälter
DE10202252C1 (de) * 2002-01-21 2003-03-20 Miele & Cie Verfahren zum Betrieb einer Waschmaschine
DE102005028102B4 (de) * 2005-06-16 2014-10-16 Jensen-Senking Gmbh Unwuchtmessung bei entkoppelten Dämpfern
DE102008017284B4 (de) 2008-04-04 2020-06-25 BSH Hausgeräte GmbH Waschmaschine mit analogem Drucksensor sowie Verfahren zu ihrem Betrieb

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002786A1 (de) * 1980-01-26 1981-08-06 Miele & Cie GmbH & Co, 4830 Gütersloh Verfahren und anordnung zur steuerung des programms einer waschmaschine
GB2073257A (en) * 1980-02-19 1981-10-14 Kenwood Mfg Co Ltd Improvements in or relating to washing machines and spin-driers
EP0091336A1 (fr) * 1982-03-26 1983-10-12 Esswein S.A. Machine à laver le linge à moyens de détection de balourds
US4835991A (en) * 1987-12-24 1989-06-06 Whirlpool Corporation Automatic water level control system for an automatic washer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638498C2 (de) * 1986-11-11 1994-06-30 Licentia Gmbh Programmgesteuerte Waschmaschine
DE3822924C1 (fr) * 1988-07-07 1989-11-23 Miele & Cie Gmbh & Co, 4830 Guetersloh, De
DE4022715A1 (de) * 1990-07-17 1992-01-23 Licentia Gmbh Waschmaschine
DE4229646C2 (de) * 1992-09-04 1998-08-06 Bosch Siemens Hausgeraete Verfahren zum Schleudern von nasser Wäsche

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002786A1 (de) * 1980-01-26 1981-08-06 Miele & Cie GmbH & Co, 4830 Gütersloh Verfahren und anordnung zur steuerung des programms einer waschmaschine
GB2073257A (en) * 1980-02-19 1981-10-14 Kenwood Mfg Co Ltd Improvements in or relating to washing machines and spin-driers
EP0091336A1 (fr) * 1982-03-26 1983-10-12 Esswein S.A. Machine à laver le linge à moyens de détection de balourds
US4835991A (en) * 1987-12-24 1989-06-06 Whirlpool Corporation Automatic water level control system for an automatic washer

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879913A1 (fr) * 1997-05-21 1998-11-25 Electrolux Zanussi S.p.A. Procédé pour équilibrer une machine à laver et machine à laver utilisant un tel procédé
EP0885993A1 (fr) * 1997-06-18 1998-12-23 Electrolux Zanussi S.p.A. Machine à laver avec dispositif d'equilibrage
FR2767194A1 (fr) * 1997-08-11 1999-02-12 Elbi Int Spa Machine fonctionnelle et utilisation d'un transducteur de pression dans une machine fonctionnelle
EP0967318A1 (fr) * 1998-06-27 1999-12-29 Miele & Cie. GmbH & Co. Machine à laver avec détecteur de niveau et dispositif pour mesurer le déplacement de la cuve engendré par le balourd
US7059002B2 (en) 2002-05-17 2006-06-13 Lg Electronics Inc. Dehydration control method of drum washing machine
EP1362946A2 (fr) * 2002-05-17 2003-11-19 Lg Electronics Inc. Procédé pour commander l'essorage dans une machine à laver à tambour
EP1362946A3 (fr) * 2002-05-17 2004-03-03 Lg Electronics Inc. Procédé pour commander l'essorage dans une machine à laver à tambour
EP1516952A2 (fr) * 2002-05-17 2005-03-23 LG Electronics Inc. Procédé pour commander l'essorage dans une machine à laver à tambour
EP1516952A3 (fr) * 2002-05-17 2005-07-27 LG Electronics Inc. Procédé pour commander l'essorage dans une machine à laver à tambour
EP1598466A1 (fr) * 2004-05-21 2005-11-23 Samsung Electronics Co., Ltd. Machine à laver avec dispositif de détection
CN1332182C (zh) * 2004-05-21 2007-08-15 三星电子株式会社 压力和振动检测装置
DE102005028253B3 (de) * 2005-06-17 2006-11-02 Emz-Hanauer Gmbh & Co. Kgaa Vorrichtung und Verfahren zur Erfassung der Unwucht einer drehbaren Komponente eines Haushaltsgeräts und Haushaltsgerät damit
CN100595544C (zh) * 2005-06-17 2010-03-24 emz-汉拿两合有限公司 用于检测家用设备的可旋转组件的失衡的装置及方法
WO2010076148A1 (fr) 2008-12-30 2010-07-08 Arcelik Anonim Sirketi Lave-linge comprenant un siphon
CN109837698A (zh) * 2017-11-24 2019-06-04 青岛海尔洗衣机有限公司 一种衣物处理装置
CN108708135A (zh) * 2018-04-11 2018-10-26 青岛海尔洗衣机有限公司 洗涤控制方法和洗衣机
CN108708135B (zh) * 2018-04-11 2022-10-21 青岛海尔洗衣机有限公司 洗涤控制方法和洗衣机

Also Published As

Publication number Publication date
DE19549526C2 (de) 1999-02-11
DE19522393C2 (de) 1998-04-09
DE19522393A1 (de) 1997-01-02
DE59603128D1 (de) 1999-10-28
ES2136340T3 (es) 1999-11-16
EP0750065B1 (fr) 1999-09-22

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