EP2794974B1 - Appareil électroménager pour l'entretien de pièces de linge, ainsi que procédé de détermination d'un état d'erreur d'un dispositif d'oscillation d'un appareil électroménager - Google Patents

Appareil électroménager pour l'entretien de pièces de linge, ainsi que procédé de détermination d'un état d'erreur d'un dispositif d'oscillation d'un appareil électroménager Download PDF

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Publication number
EP2794974B1
EP2794974B1 EP12809745.8A EP12809745A EP2794974B1 EP 2794974 B1 EP2794974 B1 EP 2794974B1 EP 12809745 A EP12809745 A EP 12809745A EP 2794974 B1 EP2794974 B1 EP 2794974B1
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EP
European Patent Office
Prior art keywords
household appliance
acceleration sensor
oscillating device
drum
acceleration
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.)
Active
Application number
EP12809745.8A
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German (de)
English (en)
Other versions
EP2794974A1 (fr
Inventor
Hasan Gökcer ALBAYRAK
Sebastian Bauer
Ansgar RISCHKE
Rudolf Seidl
Jörg SKRIPPEK
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Priority to PL12809745T priority Critical patent/PL2794974T3/pl
Publication of EP2794974A1 publication Critical patent/EP2794974A1/fr
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Publication of EP2794974B1 publication Critical patent/EP2794974B1/fr
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    • 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

Definitions

  • the invention relates to a household appliance for the care of laundry items, with a drum for receiving the laundry items, and a housing in which the drum is mounted with a vibrating device. Furthermore, the invention relates to a method for determining a fault condition of a vibration device of a household appliance for the care of laundry, in which a drum for receiving the laundry items is mounted in a housing of the household appliance by means of the oscillating device.
  • the drum In household appliances for the care of items of laundry, such as a washing machine or a tumble dryer, it is known that the drum is mounted for receiving the laundry with a vibrating system or a vibrating device in the housing.
  • This oscillating device usually includes dampers and spring suspensions.
  • the drum rotates about its axis and is formed relative to the housing due to the oscillating mounting means of the vibrating device for performing oscillatory movements.
  • a washing machine with a lye container, a drum arranged in the tub, a housing in which the tub is mounted with a vibrating device, and with an acceleration sensor which is attached to the tub, is made of EP 2 175 061 A1 known. Further disclosed EP 2 175 061 A1 a method by which the presence of a transport fixation of the tub can be determined by means of the acceleration sensor.
  • an oscillating device has a fault condition, for example as a result of a spring break or damper break or due to a worn spring or a worn damper
  • the oscillating movement of the drum is provided with an undesired imbalance during operation, which can lead to damage to the domestic appliance, in particular to further bearings
  • the drum is also stored virtually unsymmetrical in the idle state, which is also undesirable.
  • the mechanical stress influences on other components of the household appliance in such a fault condition of the vibrating device may lead to further malfunction or destruction of other components of the household appliance.
  • An inventive household appliance for the care of laundry comprises a drum for receiving the laundry items, and a housing in which the drum is mounted with a vibrating device.
  • the vibrating device includes means for detecting an error condition of the vibrating device.
  • the device comprises at least one acceleration sensor with which the direction of gravitational acceleration relative to the acceleration sensor can be measured and, depending on the result, an error state of the oscillating device can be detected.
  • the acceleration sensor has at least one measuring axis, and the direction of the gravitational acceleration is measurable relative to the direction of this measuring axis.
  • the precision is high in this regard.
  • the acceleration sensor is arranged on the drum or on the tub. There, it can be positioned mechanically stable and since the drum is coupled to the oscillating device, it is therefore also possible to make a very precise statement about the state of the oscillating device via the position of the drum. Unwanted high loads of the acceleration sensor in a moving oscillating device can be avoided by this positioning. Since the springs and / or dampers of the oscillating device change length during operation due to their configuration, a positioning of the acceleration sensor on such a component is more difficult and may also lead to impairments of the acceleration sensor. By attaching to the drum these possibly occurring difficulties can be avoided.
  • the acceleration sensor has at least two measuring axes, and the direction of the gravitational acceleration can be measured relative to directions of these measuring axes.
  • the determination of an error state can thus be carried out more accurately and even the slightest deviations of the oscillating device from a standard state can be detected.
  • no further components are needed, but it can be achieved by a specific embodiment of this acceleration sensor.
  • the acceleration sensor is arranged on an outer side of the drum.
  • the acceleration sensor in this regard is not polluted. He is also not entrained by possibly hanging laundry or damaged.
  • the acceleration sensor is arranged at the bottom center of the drum.
  • the gravitational acceleration which usually extends vectorially oriented vertically to the ground.
  • a statement about a possible skew of the oscillating device and thus a fault condition can be detected in a very simple yet precise and reliable manner.
  • the household appliance is a washing machine or a tumble dryer.
  • the invention relates to a method for determining a fault condition of a vibrating device of a household appliance for the care of laundry, in which a drum for receiving the laundry items is mounted in a housing of the household appliance by means of the oscillating device.
  • a drum for receiving the laundry items is mounted in a housing of the household appliance by means of the oscillating device.
  • an acceleration sensor of a device for detecting the error state of the oscillating device By means of an acceleration sensor of a device for detecting the error state of the oscillating device, the direction of gravitational acceleration relative to the acceleration sensor is measured, and depending on the result, an error state of the oscillating device is detected.
  • the direction of gravitational acceleration is measured relative to a direction of at least one measuring axis of the acceleration sensor.
  • such a measurement is carried out to a plurality of measuring axes of the acceleration sensor.
  • a reference measurement is carried out, which is stored in the device.
  • the at least one measurement is carried out in the operation of the household appliance in an idle state of the oscillating device.
  • a limit value for a deviation between the direction of the gravitational acceleration of the reference measurement and the direction of at least one measuring axis of the acceleration sensor is determined and an error condition of the oscillating device is detected when the limit value is exceeded.
  • a wide variety of error conditions can be detected and grouped.
  • a complete failure of a component of a vibrating device can be detected quickly, such as a breakage of a damper or a spring.
  • a damper or a spring can be detected, which is still not broken, but in comparison to another damper or to another spring is already more worn and the full functionality is no longer given.
  • Fig. 1 is shown in a simplified representation of a household appliance 1 for the care of laundry, which may be for example a washing machine or a tumble dryer.
  • the household appliance 1 comprises a housing 2.
  • a drum 3 is arranged, which is designed for receiving laundry items and which is rotatable about an axis A which is oriented perpendicular to the plane of the figure.
  • the domestic appliance 1 is a washing machine, it also includes, in particular, a tub 4 which surrounds the drum 3 and in which the drum 3 is rotatably mounted.
  • the household appliance 1 further comprises a vibrating device 5, which has in the upper region by way of example springs 6 and 7, and in the lower region comprises dampers 8 and 9.
  • the springs 6 and 7, which are only mentioned by way of example in number and position, are connected in an upper region of the housing 2 with this.
  • dampers 8 and 9 which are also shown by way of example in number and position, are connected to the housing 2 at a lower area.
  • the oscillating device 5 For driving the drum 3, the oscillating device 5 comprises a drive motor, not shown, which may be, for example, a permanent magnet synchronous motor.
  • the rotor of this motor is connected to the drum 3 via a belt.
  • the oscillating device 5 comprises a device 10 for detecting an error state of the oscillating device 5.
  • this device 10 comprises at least one acceleration sensor 11.
  • the acceleration sensor 11 comprises at least one such measuring axis, preferably at least two measuring axes oriented in different directions.
  • the acceleration sensor 11 may be arranged on an outer side 15 of the drum 3 and in particular at the bottom there. However, it can also be arranged on the tub 4 at a corresponding position.
  • Fig. 1 an error-free state of the oscillating device 5 is shown. This is because the direction 12 coincides with the direction 13.
  • a reference measurement is first of all carried out in which the oscillating device 5 is centered and centered and without imbalance, and thus also the drum 3 and / or the tub 4 are positioned centered. This reference measurement and thus also the direction 13 of the measuring axis 14 of the acceleration sensor 11 are then stored accordingly.
  • the household appliance 1 and in particular the oscillating device 5 comprises a control and evaluation unit, which is not shown.
  • one or more actual measurements are then performed and checked whether the error-free state of the vibrating device 5 is given or an error condition has occurred. For this purpose, a comparison of a measured actual direction of at least one measuring axis of Acceleration sensor 11 performed with the direction of gravity acceleration 12. If a deviation occurs here, or if a deviation occurs which is greater than a limit value, an error state is detected.
  • An error condition may be a break of a damper 8 and / or 9 and / or a spring 6 and / or 7.
  • a fault condition may also be such that a damper 8 or 9 or a spring 6 or 7 is not yet broken but worn and has functionality in comparison to the other dampers 8 and / or 9 and / or the springs 6 and / or 7 is deteriorating.
  • Fig. 2 For this purpose, a state is shown in which an error of the oscillating device 5 is present. It can be seen that the drum 3 is no longer centrally positioned centrally when the oscillating device 5 is at rest, but a certain inclination occurs. As a result, the direction 13 of the measuring axis 14 is no longer vertically downwards and no longer coinciding with the direction 12 of the gravitational acceleration. In Fig. 2 Thus, a deviation between the directions 13 and 12 has occurred, which characterizes a fault condition.

Claims (9)

  1. Appareil ménager (1) pour l'entretien de linge, comprenant un tambour (3) pour le logement du linge, un boîtier (2) dans lequel est logé le tambour (3) avec un dispositif oscillant (5), et au moins un capteur d'accélération (11) qui est disposé sur le tambour (3) ou sur une cuve de liquide de lavage (4) et qui présente au moins un axe de mesure (14), caractérisé en ce que le dispositif oscillant (5) présente un agencement (10) destiné à identifier un état d'erreur du dispositif oscillant (5), l'agencement (10) comprenant l'au moins un capteur d'accélération (11), au moyen duquel le sens (12) de l'accélération gravitationnelle, qui, verticalement par rapport au sol, s'étend en étant orientée vectoriellement, est mesurable par rapport au sens (13) de l'axe de mesure (14) du capteur d'accélération (11), et un état d'erreur du dispositif oscillant (5) étant identifiable en fonction d'une comparaison du sens (12) de l'accélération gravitationnelle et du sens (13) de l'axe de mesure (14) du capteur d'accélération (11).
  2. Appareil ménager (1) selon la revendication 1, caractérisé en ce que le capteur d'accélération (11) présente au moins deux axes de mesure et en ce que le sens (12) de l'accélération gravitationnelle est mesurable par rapport aux sens de ces axes de mesure.
  3. Appareil ménager (1) selon la revendication 1 ou 2, caractérisé en ce que le capteur d'accélération (11) est disposé sur un côté extérieur (15) du tambour (3) ou sur un côté extérieur de la cuve de liquide de lavage (4).
  4. Appareil ménager (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le capteur d'accélération (11) est disposé en bas au milieu sur le tambour (3) ou sur la cuve de liquide de lavage (4).
  5. Procédé de détermination d'un état d'erreur d'un dispositif oscillant (5) d'un appareil ménager (1) destiné à l'entretien de linge, dans lequel un tambour (3) destiné à loger le linge est logé dans un boîtier (2) de l'appareil ménager (1) au moyen du dispositif oscillant (5) et dans lequel au moins un capteur d'accélération (11), qui est disposé sur le tambour (3) ou sur une cuve de liquide de lavage (4) et qui présente au moins un axe de mesure (14), caractérisé en ce qu'au moyen du capteur d'accélération (11) d'un agencement (10) destiné à identifier l'état d'erreur, le sens (12) de l'accélération gravitationnelle, qui, verticalement par rapport au sol, s'étend en étant orienté vectoriellement, est mesuré par rapport au sens (13) de l'axe de mesure (14) du capteur d'accélération (11), en ce qu'une comparaison du sens (12) de l'accélération gravitationnelle et du sens (13) de l'axe de mesure (14) du capteur d'accélération (11) est réalisée et en ce qu'un état d'erreur du dispositif oscillant (5) est identifié en fonction de la comparaison.
  6. Procédé selon la revendication 5, caractérisé en ce que dans un état exempt d'erreur du dispositif oscillant (5), une mesure de référence est réalisée, laquelle est mémorisée dans l'agencement (10).
  7. Procédé selon la revendication 6, caractérisé en ce qu'au cours du fonctionnement de l'appareil ménager (1) au moins une mesure réelle est réalisée, laquelle est comparée à la mesure de référence et en ce qu'un état d'erreur est identifié en fonction de la comparaison.
  8. Procédé selon la revendication 7, caractérisé en ce que l'au moins une mesure réelle est réalisée pendant le fonctionnement de l'appareil ménager (1) à l'état de repos du dispositif oscillant (5).
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce qu'une valeur limite pour une différence entre le sens (12) de l'accélération gravitationnelle de la mesure de référence et le sens (13) au moins d'un axe de mesure (14) du capteur d'accélération (11) est déterminée et en ce qu'un état d'erreur du dispositif oscillant (5) est identifié lors d'un dépassement de la valeur limite.
EP12809745.8A 2011-12-22 2012-12-17 Appareil électroménager pour l'entretien de pièces de linge, ainsi que procédé de détermination d'un état d'erreur d'un dispositif d'oscillation d'un appareil électroménager Active EP2794974B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12809745T PL2794974T3 (pl) 2011-12-22 2012-12-17 Sprzęt gospodarstwa domowego do pielęgnacji pranej bielizny oraz sposób określania stanu uszkodzenia zespołu oscylacyjnego sprzętu gospodarstwa domowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011089624A DE102011089624A1 (de) 2011-12-22 2011-12-22 Haushaltsgerät zur Pflege von Wäschestücken sowie Verfahren zum Bestimmen eines Fehlerzustands einer Schwingvorrichtung eines Haushaltsgeräts
PCT/EP2012/075786 WO2013092486A1 (fr) 2011-12-22 2012-12-17 Appareil électroménager pour l'entretien de pièces de linge, ainsi que procédé de détermination d'un état d'erreur d'un dispositif d'oscillation d'un appareil électroménager

Publications (2)

Publication Number Publication Date
EP2794974A1 EP2794974A1 (fr) 2014-10-29
EP2794974B1 true EP2794974B1 (fr) 2015-09-16

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EP12809745.8A Active EP2794974B1 (fr) 2011-12-22 2012-12-17 Appareil électroménager pour l'entretien de pièces de linge, ainsi que procédé de détermination d'un état d'erreur d'un dispositif d'oscillation d'un appareil électroménager

Country Status (6)

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EP (1) EP2794974B1 (fr)
CN (1) CN104011279B (fr)
DE (1) DE102011089624A1 (fr)
PL (1) PL2794974T3 (fr)
RU (1) RU2589475C2 (fr)
WO (1) WO2013092486A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112199B4 (de) * 2012-12-13 2016-01-14 Miele & Cie. Kg Wäschebehandlungsmaschine, insbesondere Wäschetrockner
DE102014207434A1 (de) * 2014-04-17 2015-10-22 Robert Bosch Gmbh Verfahren zum Betreiben einer Handwerkzeugmaschine, Handwerkzeugmaschine
DE102014217943A1 (de) 2014-09-08 2016-03-10 BSH Hausgeräte GmbH Verfahren zum Betrieb einer Waschmaschine mit einem Drucksensor sowie hierzu geeignete Waschmaschine
DE102015208648A1 (de) 2015-05-11 2016-11-17 BSH Hausgeräte GmbH Verfahren zum Bestimmen der Masse beim Einbringen eines Wäschepostens in eine Wäschetrommel und Wäschebehandlungsmaschine zum Durchführen des Verfahrens
JP7442126B2 (ja) * 2019-12-10 2024-03-04 青島海爾洗衣机有限公司 ドラム式洗濯機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103961A1 (de) * 1991-02-09 1992-08-13 Licentia Gmbh Vorrichtung zur begrenzung von unwuchtauslenkungen schwingender behaeltersysteme in haushalt-waschmaschinen
ES2226663T5 (es) * 2000-06-30 2008-02-16 Whirlpool Corporation Metodo para detectar y controlar el desequilibrio dinamico en un tambor de una maquina lavadora y maquina lavadora que utiliza dicho metodo.
DE102005037144B4 (de) * 2005-02-18 2007-04-19 Diehl Ako Stiftung & Co. Kg Schwingfähig aufgehängtes Innenaggregat einer Wäschebehandlungsmaschine mit einem Schwingungssensor
ITTO20050623A1 (it) * 2005-09-14 2007-03-15 Indesit Co Spa Elettrodomestico per il trattamento di capi tessili con sensore di spostamento
JP4640476B2 (ja) * 2008-09-19 2011-03-02 パナソニック株式会社 洗濯機
DE102010001845A1 (de) * 2010-02-11 2011-08-11 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Einrichtung zur Überwachung einer im Betrieb schwingenden Vorrichtung eines Haushaltsgeräts, Haushaltsgerät zur Pflege von Wäschestücken sowie Verfahren zum Betreiben eines Haushaltsgeräts

Also Published As

Publication number Publication date
EP2794974A1 (fr) 2014-10-29
CN104011279B (zh) 2016-06-22
PL2794974T3 (pl) 2016-02-29
WO2013092486A1 (fr) 2013-06-27
RU2014129739A (ru) 2016-02-20
RU2589475C2 (ru) 2016-07-10
DE102011089624A1 (de) 2013-06-27
CN104011279A (zh) 2014-08-27

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