EP1736589A2 - Machine à laver avec détecteur du balourd - Google Patents

Machine à laver avec détecteur du balourd Download PDF

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Publication number
EP1736589A2
EP1736589A2 EP06011034A EP06011034A EP1736589A2 EP 1736589 A2 EP1736589 A2 EP 1736589A2 EP 06011034 A EP06011034 A EP 06011034A EP 06011034 A EP06011034 A EP 06011034A EP 1736589 A2 EP1736589 A2 EP 1736589A2
Authority
EP
European Patent Office
Prior art keywords
drum
washing machine
measured values
machine according
imbalance
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
EP06011034A
Other languages
German (de)
English (en)
Other versions
EP1736589B1 (fr
EP1736589A3 (fr
Inventor
Guido Schellenberg
Sven Hansen
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.)
V-Zug AG
Original Assignee
V-Zug AG
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
Family has litigation
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Application filed by V-Zug AG filed Critical V-Zug AG
Priority to SI200631866T priority Critical patent/SI1736589T1/sl
Priority to PL06011034T priority patent/PL1736589T3/pl
Publication of EP1736589A2 publication Critical patent/EP1736589A2/fr
Publication of EP1736589A3 publication Critical patent/EP1736589A3/fr
Application granted granted Critical
Publication of EP1736589B1 publication Critical patent/EP1736589B1/fr
Active 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/20—Mops
    • A47L13/24—Frames for mops; Mop heads
    • A47L13/254—Plate frames
    • A47L13/258—Plate frames of adjustable or foldable type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/149—Emptying means; Reusable bags
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/26—Imbalance; Noise level

Definitions

  • the invention relates to a washing machine according to the preamble of claim 1.
  • Such a washing machine is eg in EP 1 391 549 described. It has a drum which rotates about an axis of rotation, a measuring device for detecting an imbalance in the drum in the spinning operation, with which as a function of the rotation angle of the drum measured values can be generated, and a controller for determining the position and / or size of the imbalance the measured values. Because of the unbalance parameters thus obtained, the unbalance can be compensated for and / or the spin program can be interrupted if there is too much imbalance, eg to redistribute the laundry to be spun in the drum.
  • the washing machine includes a memory for storing calibration values.
  • the control of the washing machine is designed to determine the position and / or size of the unbalance by calculating the measured values with the calibration values.
  • idle measurements are stored in memory as a function of the angle of rotation, i. the measured values, as determined during a calibration measurement with an empty drum.
  • the controller calculates from the measured values, e.g. quotient corrected quantities from which e.g. By subtraction with the idle measurement values from this, the position and / or size of the imbalance can be determined.
  • the phase shift between the measured values and the position of the imbalance as a function of the rotational speed of the drum is stored in the memory of the washing machine. Since this phase shift is speed-dependent, the position of the imbalance can be determined by calculating the measured values with the phase shift as a function of the rotational speed of the drum.
  • the washing machine shown in FIG. 1 has a drum 1 with a horizontal axis of rotation 2.
  • the drum 1 is arranged in a tub 3.
  • a motor 4 is fixed, which drives the drum via a belt 5 and a pulley 6 in a known manner for rotation.
  • the tub 3 is mounted with a suspension swinging in the washing machine.
  • acceleration sensors 7 are mounted at the front and, opposite, at the rear end of the tub 3, which allow to determine a pivoting and / or tumbling movement of the tub.
  • an angular velocity sensor 8 is provided, with which in the manner described below, the instantaneous angular velocity can be measured as a function of the rotational angle of the drum.
  • distance sensors can also be used.
  • the sensors make it possible to detect an imbalance in the drum when spinning or at the beginning of the spin program.
  • the spinning process can also be interrupted, as already mentioned.
  • three tanks 10 are provided for unbalance compensation, which are arranged in the ribs 11 of the drum 1.
  • Each tank 10 extends e.g. with its longitudinal axis over the entire axial length of the drum 1.
  • three filling rings 13a, b and c are arranged at the rear end face 12 of the drum 1.
  • the filling rings are coaxial, wherein filling ring 13a has the smallest diameter, filling ring 13b has the next largest diameter and filling ring 13c has the largest diameter.
  • Each of the filling rings is connected via a filling tube 14 with one of the tanks 10 in combination.
  • a stationary injector 16 is provided to inject water into the packing rings. It comprises a water inlet 17 which supplies water to three valves 18. From the valves 18, the water passes through a drop section 19 to a respective tube 19 a, wherein the drop section 19, a backflow of water into the water inlet 17 prevented.
  • the hoses 19a terminate in nozzles 19b, of which the water is injected into the individual filling rings 13a, b, c.
  • the nozzles 19b are mounted on the tub 3 and on the oscillating system of the washing machine.
  • Fig. 2 shows schematically again the mechanical structure of the washing machine and its controller 20th
  • Fig. 2 shows the drum 1 and its axis of rotation 2.
  • a rotary body 21 which, as shown in Fig. 1, e.g. may be configured as a disc which is arranged on the pulley 6.
  • the rotary body 21 rotates with the drum. He carries a variety of markings, which are configured in the embodiment shown as regularly distributed over the periphery of the rotating body teeth 22.
  • the stationary on the rotary body 21 arranged angular velocity sensor 8 is able to detect the markings.
  • the angular velocity sensor 8 is designed as a light barrier whose light path is interrupted by the teeth 22.
  • optical detector which detects the optically detectable markings on the rotary body 21. It may also be non-optical, e.g. Magnetic measurement methods are used in conjunction with appropriately designed markings.
  • FIG. 3 shows a corresponding series of measured values of durations t0 when the drum is idling, ie when the drum is empty. Since in the present example, the teeth are all the same size and equally spaced, the measured times are all about the same size. The variations shown in Fig. 3 are due to asymmetries in the structure of the rotating parts and inaccuracies in the manufacture of the teeth 22.
  • Each of the time values thus determined is inversely proportional to the instantaneous angular velocity of the drum 1.
  • the instantaneous angular velocity of the drum 1 is dependent on the current angle of rotation.
  • a corresponding measurement series of time periods t is shown in FIG. 4. As can be seen, the angular velocity is varied approximately sinusoidally.
  • the magnitude of the imbalance is reflected in the amplitude of the sinusoidal variation in Fig. 4, the position in the phase angle of the signal.
  • the sectors i according to FIG. 3 or 4 each have a rotation angle of the drum can be assigned.
  • a zero point sensor is provided which emits a signal when the drum is in a specific zero position.
  • the idling measured values t0 (i) according to FIG. 3 are stored as a function of the rotation angle ⁇ or of the sector i in a memory 23 of the controller 20, and the controller 20 is designed to determine the position and / or size of the unbalance by calculating the measured values t (i) according to FIG. 4 with the idling measured values t0 (i).
  • the difference d i t i / ⁇ t j - t ⁇ 0 i / ⁇ t ⁇ 0 j are formed for the measured value of each sector or angle of rotation i, the sums extending over all sectors j. For the determination of amplitude and phase of the unbalance, the difference d (i) thus obtained is then used.
  • the calibration values t0 (i) can be stored by the manufacturer in the memory 23, e.g. as part of the final test of a device. However, they may also be detected, at least in part, at a later time by the controller 20 and stored, e.g. by starting a particular calibration program during which measurements are performed on an empty drum. This is particularly useful when the angular velocity sensor 8 or the rotating body 21 must be replaced during maintenance or repair work.
  • the exemplary embodiment shown in FIG. 1, in addition to the angular velocity sensor 8, also has two acceleration sensors 7. These different types of sensors are preferably used in addition. It turns out that at lower angular velocities, the angular velocity sensor 8 provides the most accurate results while the signals from the acceleration sensors 7 are relatively weak. At higher angular speeds, the signals of the acceleration sensors 7 become stronger, while those of the angular velocity sensor 8 lose their meaningfulness.
  • the signals of the acceleration sensors 7 measured at certain times must be associated with the angular position of the drum 1.
  • the already mentioned zero point transmitter can be provided which emits a signal when the drum is in a specific zero position.
  • FIG. 5 A corresponding course of the phase shift is shown in FIG. 5.
  • the course of the phase shift differs in practice from a simple arctan behavior, since the suspension has several resonance frequencies and several degrees of freedom.
  • the phase shift between the signals of the acceleration sensors 7 and the position of the imbalance as a function of the rotational speed is in a memory 25 of the controller 20 the drum 1 is stored.
  • This can e.g. in the form of individual values according to FIG. 5 or in the form of the parameters of a curve adapted to the values according to FIG. 5.
  • the phase shift stored in the memory 25 as a function of the rotational speed of the drum 1 forms calibration values with which the position measurements can be corrected.
  • the microprocessor 24 of the controller 20 determines the phase position of the measured acceleration values, for example by means of Fourier transformation or cosine transformation, wherein the amplitude can also be determined in the same calculation step. To the determined phase position, the microprocessor 24 adds the phase shift according to the calibration values from memory 25 to this speed, resulting in the angular position of the imbalance. Depending on this angular position, for example, the tanks 10 can now be filled. For this purpose, the controller 20 outputs control signals corresponding to a valve control 26.
  • acceleration sensors 7 which measure axial and / or radial accelerations of the drum 1 or of the oscillating system
  • position sensors which measure the axial or radial deflections of the drum 1, the tub 3 or other parts of the oscillating system
  • the mean value of the signals of the acceleration sensors 7 is used for processing. This produces a signal independent of tilting of the drum.
  • the calibration values i. the course of the phase shift according to FIG. 5 can be stored by the manufacturer in the memory 25 by carrying out measurements on a drum with a known imbalance attached to a defined position.
  • the same calibration values can be used per se for all devices of the same type of the same type.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP06011034.3A 2005-06-24 2006-05-30 Machine à laver avec détecteur du balourd Active EP1736589B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200631866T SI1736589T1 (sl) 2005-06-24 2006-05-30 Pralni stroj z detektorjem neuravnoteĹľenosti
PL06011034T PL1736589T3 (pl) 2005-06-24 2006-05-30 Pralka z detektorem niewyważenia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH10772005 2005-06-24

Publications (3)

Publication Number Publication Date
EP1736589A2 true EP1736589A2 (fr) 2006-12-27
EP1736589A3 EP1736589A3 (fr) 2009-06-17
EP1736589B1 EP1736589B1 (fr) 2014-10-01

Family

ID=37198914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06011034.3A Active EP1736589B1 (fr) 2005-06-24 2006-05-30 Machine à laver avec détecteur du balourd

Country Status (4)

Country Link
EP (1) EP1736589B1 (fr)
DK (1) DK1736589T3 (fr)
PL (1) PL1736589T3 (fr)
SI (1) SI1736589T1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017284A1 (de) 2008-04-04 2009-10-08 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine mit analogem Drucksensor sowie Verfahren zu ihrem Betrieb
US9145634B2 (en) 2013-06-04 2015-09-29 Whirlpool Corporation Method of operating a laundry treating appliance
EP3042992A1 (fr) 2015-01-06 2016-07-13 V-Zug AG Lave-linge avec compensation de balourd
CN108431320A (zh) * 2015-12-24 2018-08-21 青岛海尔洗衣机有限公司 洗衣机的控制方法
WO2019127459A1 (fr) * 2017-12-29 2019-07-04 陈坚胜 Dispositif d'agitation d'eau de lave-linge, et lave-linge
DE102018104018A1 (de) 2018-02-22 2019-08-22 Miele & Cie. Kg Die Erfindung betrifft ein Aggregat für eine Waschmaschine gemäß dem Oberbegriff von Anspruch 1 sowie eine Waschmaschine, die mit einem solchen Aggregat ausgestattet ist
EP3904581A1 (fr) 2020-04-30 2021-11-03 Haier Deutschland GmbH Machine de traitement du linge et procédé de fonctionnement d'une machine de traitement du linge
WO2022001181A1 (fr) * 2020-06-29 2022-01-06 青岛海尔洗衣机有限公司 Machine à laver
WO2022001205A1 (fr) * 2020-06-29 2022-01-06 青岛海尔洗衣机有限公司 Machine à laver
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
DE102023001232A1 (de) 2023-03-29 2024-10-02 Faouzi Attallah Aktive Gegengewichte für Waschmaschinen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915815A1 (de) * 1979-04-19 1980-11-06 Bauknecht Gmbh G Vorrichtung zum erfassen der drehzahl und der unwucht eines in einem gehaeuse schwingend gelagerten aggregates
DE4313819A1 (de) * 1992-10-05 1994-04-07 Pellerin Corp Milnor Maschine zur Extraktion von Fluiden aus Flüssigkeit absorbierenden Materialien
EP0856604A2 (fr) * 1997-01-31 1998-08-05 FAGOR, S.Coop Méthode pour l'equilibrage d'une machine a laver
DE19812682A1 (de) * 1997-03-21 1998-09-24 Sanyo Electric Co Trockenschleuder
EP1391549A1 (fr) * 2001-03-28 2004-02-25 Sanyo Electric Co., Ltd. Machine a laver

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915815A1 (de) * 1979-04-19 1980-11-06 Bauknecht Gmbh G Vorrichtung zum erfassen der drehzahl und der unwucht eines in einem gehaeuse schwingend gelagerten aggregates
DE4313819A1 (de) * 1992-10-05 1994-04-07 Pellerin Corp Milnor Maschine zur Extraktion von Fluiden aus Flüssigkeit absorbierenden Materialien
EP0856604A2 (fr) * 1997-01-31 1998-08-05 FAGOR, S.Coop Méthode pour l'equilibrage d'une machine a laver
DE19812682A1 (de) * 1997-03-21 1998-09-24 Sanyo Electric Co Trockenschleuder
EP1391549A1 (fr) * 2001-03-28 2004-02-25 Sanyo Electric Co., Ltd. Machine a laver

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US9145634B2 (en) 2013-06-04 2015-09-29 Whirlpool Corporation Method of operating a laundry treating appliance
EP3042992A1 (fr) 2015-01-06 2016-07-13 V-Zug AG Lave-linge avec compensation de balourd
EP3396043A4 (fr) * 2015-12-24 2019-01-09 Qingdao Haier Washing Machine Co., Ltd. Procédé de commande d'une machine à laver
US10619285B2 (en) 2015-12-24 2020-04-14 Qingdao Haier Washing Machine Co., Ltd. Control method of washing machine
CN108431320A (zh) * 2015-12-24 2018-08-21 青岛海尔洗衣机有限公司 洗衣机的控制方法
CN108431320B (zh) * 2015-12-24 2021-03-02 青岛胶南海尔洗衣机有限公司 洗衣机的控制方法
WO2019127459A1 (fr) * 2017-12-29 2019-07-04 陈坚胜 Dispositif d'agitation d'eau de lave-linge, et lave-linge
DE102018104018A1 (de) 2018-02-22 2019-08-22 Miele & Cie. Kg Die Erfindung betrifft ein Aggregat für eine Waschmaschine gemäß dem Oberbegriff von Anspruch 1 sowie eine Waschmaschine, die mit einem solchen Aggregat ausgestattet ist
EP3904581A1 (fr) 2020-04-30 2021-11-03 Haier Deutschland GmbH Machine de traitement du linge et procédé de fonctionnement d'une machine de traitement du linge
WO2022001181A1 (fr) * 2020-06-29 2022-01-06 青岛海尔洗衣机有限公司 Machine à laver
WO2022001205A1 (fr) * 2020-06-29 2022-01-06 青岛海尔洗衣机有限公司 Machine à laver
CN115768937A (zh) * 2020-06-29 2023-03-07 青岛海尔洗衣机有限公司 洗衣机
CN115777033A (zh) * 2020-06-29 2023-03-10 青岛海尔洗衣机有限公司 洗衣机
CN115777033B (zh) * 2020-06-29 2024-01-26 青岛海尔洗衣机有限公司 洗衣机
CN115768937B (zh) * 2020-06-29 2024-01-30 青岛海尔洗衣机有限公司 洗衣机
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
DE102023001232A1 (de) 2023-03-29 2024-10-02 Faouzi Attallah Aktive Gegengewichte für Waschmaschinen

Also Published As

Publication number Publication date
PL1736589T3 (pl) 2015-03-31
DK1736589T3 (en) 2014-11-17
SI1736589T1 (sl) 2015-01-30
EP1736589B1 (fr) 2014-10-01
EP1736589A3 (fr) 2009-06-17

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