EP3572576A1 - Appareil de traitement du linge - Google Patents

Appareil de traitement du linge Download PDF

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Publication number
EP3572576A1
EP3572576A1 EP19175032.2A EP19175032A EP3572576A1 EP 3572576 A1 EP3572576 A1 EP 3572576A1 EP 19175032 A EP19175032 A EP 19175032A EP 3572576 A1 EP3572576 A1 EP 3572576A1
Authority
EP
European Patent Office
Prior art keywords
laundry
electrodes
drum
sensor
capacitance values
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Withdrawn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
EP19175032.2A
Other languages
German (de)
English (en)
Inventor
Adrian Podsiadlowski
Kamil Siecinski
Ziemowit Lebiedz
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.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co 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 Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP3572576A1 publication Critical patent/EP3572576A1/fr
Withdrawn legal-status Critical Current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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • D06F2103/10—Humidity expressed as capacitance or resistance
    • 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
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/70—Control of the operating time, e.g. reduction of overall operating time
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D06F34/24—Liquid temperature

Definitions

  • the present invention relates to a laundry treatment appliance such as a washing machine or a dryer according to the preamble of claim 1.
  • a plurality of operating parameters e.g., wash liquor level, load, imbalance, speed, etc.
  • a plurality of different specific sensors and / or the evaluation of operating parameters of a drive motor of the laundry drum are usually provided.
  • the DE 10 2008 031 774 A1 discloses a sensor device for determining the amount and / or the degree of moisture of laundry in a tumble dryer having an electrode coupled to a server circuit in the upper frontal area outside the drum and counter electrodes on the Wäschemit nutritionn within the drum. Upon rotation of the drum, the counter electrodes pass the electrode, which changes the capacitive environment of the electrode, causing a change in the frequency of the oscillator or the resonant circuit of the server circuit, these frequency changes are dependent on the amount and Degree of humidity of the laundry in the drum.
  • the DE 10 2009 011 877 A1 discloses a protection system for detecting the presence of animals within, for example, a washing machine or a tumble dryer, which likewise has a main electrode outside the drum and auxiliary electrodes on the laundry drivers within the drum.
  • the DE 199 60 310 A1 discloses a device and a method for measuring the load in a laundry treatment appliance, wherein a distance between a first formed by the laundry drum or arranged on the laundry drum Electrode and a stationary second electrode is changed by a change in load of the laundry drum, so that a load of the laundry drum can be determined from a change in capacitance between these electrodes, which are at different electrical potentials.
  • the DE 10 2012 217 975 A1 describes a household appliance with a battery-free sensor unit for detecting at least one operating parameter of the household appliance, wherein the power supply of the sensor unit by means of a so-called energy harvesting, in which electrical energy is provided for the operation of the sensor unit from a non-electrical size.
  • the laundry treating appliance of the invention comprises a machine housing having a loading opening; a door for closing the loading opening; a tub arranged in the machine housing; a washing drum arranged in the tub and rotatably mounted about an axis of rotation with at least two Wäschemit Meetingn on its inside; and a sensor system with a plurality of electrodes, which form at least one capacitive sensor in pairs.
  • the sensor system in or on at least two Wäschemit counselingn the laundry drum each have two electrodes.
  • the two electrodes in or on a laundry pickup each form a pair of electrodes of a capacitive sensor and the laundry treating appliance further comprises a control device which is designed to use the capacitance values and / or a temporal behavior of the capacitance values of the at least two capacitive sensors Sensors to determine at least one operating parameter of the laundry treatment device.
  • two electrodes in or on adjacent washing elements of the laundry drum each form a pair of electrodes of a further capacitive sensor and the laundry treatment device further comprises a control device which is designed to use the capacitance values and / or a temporal behavior of the capacitance values of the at least two more capacitive sensors to determine at least one operating parameter of the laundry treatment appliance.
  • the first aspect and the second aspect may be realized individually or in combination within the scope of the invention.
  • a sensor system with a plurality (i.e., at least two) electrodes for forming capacitive sensors in order to determine operating parameters of the laundry treatment appliance from the capacitance values and / or their temporal behavior.
  • the capacitive sensors formed by the electrodes are inexpensive and allow easy evaluation of the measurement signals.
  • construction and assembly of the capacitive sensors thus formed are simple and it is possible to dispense with the use of parameter-specific sensors.
  • Each electrode pair of the sensors forms a (further) capacitance whose capacitance value depends on the dielectric constant of the medium / the media combination between the electrodes.
  • a capacitive sensor preferably contains, in addition to such an electrode pair, a sensor circuit connected to the pair of electrodes, which generates measurement signals in accordance with the capacitance values.
  • the sensor circuits determine which two of the existing electrodes each form a pair of electrodes.
  • the sensor circuits preferably have switches to enable and disable pairing of the electrodes. Depending on the number of electrodes provided (pairs), the sensor system comprises a larger number of such sensor circuits or a correspondingly combined sensor circuit system.
  • the control device is designed to determine at least one operating parameter of the laundry treatment appliance from the measurement signals of the sensor system. Depending on the number and arrangement of the electrodes of the sensor, different capacitive sensors can be formed, so that a plurality of different operating parameters can be determined. The determination of an operating parameter by the control device can be carried out on the basis of the measuring signals of a capacitive sensor or the measuring signals of a plurality of capacitive sensors.
  • the laundry treating appliance is preferably a washing machine or a dryer.
  • the axis of rotation of the laundry drum preferably extends substantially horizontally or substantially vertically, but may also have any orientation.
  • the at least one operating parameter of the laundry treatment device which can be determined from the capacitance values and / or a temporal behavior of the capacitance values of the at least two capacitive sensors, is preferably selected from a wash liquor level in the tub, a temperature of the wash liquor and a speed of the laundry drum.
  • the at least one operating parameter of the laundry treatment device which can be determined from the capacitance values and / or a temporal behavior of the capacitance values of the at least two further capacitive sensors, is preferably selected from a loading of the laundry drum, a moisture of a loading of the laundry drum and an imbalance of a loading of the laundry drum ,
  • the laundry treatment appliance can naturally also have further sensors for determining further operating parameters.
  • the sensor system has electrodes which are combined in pairs with a plurality of other of these electrodes for forming the capacitive sensors or the further capacitive sensors or can be combined.
  • a larger number of capacitive sensors can be formed with a small number of electrodes, i. be determined with a smaller number of electrodes more different operating parameters.
  • the sensor system has a plurality of electrodes which are arranged on an inner side of the laundry drum, more precisely in or on the laundry carriers on the inside of the laundry drum.
  • the capacitance values of the (further) capacitive sensors formed by the electrodes are directly influenced by the medium in the laundry drum (wash liquor, laundry, wet laundry, etc.), which are also related to a large part of the operating parameters of the laundry treatment appliance that are decisive for the program sequence.
  • the electrodes (pairs) on a moving component and the correspondingly time-varying measurement signals to determine further and possibly more complex operating parameters.
  • the senor additionally has a plurality of electrodes, which are arranged on an inner side of the tub or on an inner side of the door.
  • the energy supply of the sensor is at least partially by means of energy harvesting.
  • the laundry treatment appliance for example a washing machine or a dryer, has a machine housing 10 in which a tub 12 is suspended (14) in an oscillatable manner. Inside the tub 12 is a laundry drum 16 which is rotatably mounted about an axis of rotation 18. The axis of rotation 18 is aligned substantially horizontally in this embodiment, but may also be oriented substantially vertically or at other angles. On the inside of the cylindrical shell of the laundry drum 16 more (here: three) Wäschemit Meeting 20 are provided.
  • the machine housing 10 has a loading opening 22, through which the interior of the laundry drum 16 is accessible, so that a user can fill laundry in the laundry drum 16 and remove it from the laundry drum 16.
  • the laundry drum 16 and the tub 12 have corresponding openings in the region of the loading opening 22.
  • the loading opening 22 can be closed by a door 24.
  • a drive 26 for the washing drum 16 and a control device 27 are arranged in the machine housing 10 and on the machine housing 10 also an operating panel 28 is provided.
  • this has a sensor which is connected to the control device 27 (wired or wireless).
  • the control device 27 controls the program sequence selected by the user via the control panel 28 as a function of the current operating parameters. For example, the wash liquor level in the tub, the temperature of the wash liquor, the load of the laundry drum, the humidity of the load of the laundry drum, the unbalance of the load of the laundry drum, the operating parameters of the laundry treatment device, which can determine the control device 27 based on the measurement signals of the sensor Speed of the laundry drum and the like.
  • the sensor system of the laundry treatment device according to the invention has a plurality of electrodes 30, which is arranged on the inside of the laundry drum 16 in / on the Wäschemit Meetingn 20 of the laundry drum 16.
  • the sensors of the laundry treatment appliance according to the invention may have a plurality of electrodes 32 on the inside of the tub 12 and / or a plurality of electrodes 34 on the inside of the door 24.
  • the electrodes 30, 32, 34 may be combined in pairs by suitable sensor circuits to form capacitive sensors.
  • the combinations of the electrodes 30, 32, 34 are preferably variable, so that one electrode can be combined with a plurality of other electrodes.
  • the energy supply of the capacitive sensors for example by means of so-called. Energy Harvesting.
  • 16 energy can be obtained from the temperature of the wash liquor or the rotation of the laundry drum to supply the sensors with electrical energy.
  • Fig. 3 shows an embodiment in which in each of the Wäschemit choir 20 of the laundry drum 16 two electrodes 30 are placed.
  • three capacitive sensors with electrode pairs 30 can each be formed within a laundry pickup 20, which have the capacitance values C1, C2 or C3.
  • three further capacitive sensors with electrode pairs 30 can each be formed from two adjacent Wäschemit facilitatorn 20 having the capacitance values CA, CB and CC.
  • the capacitance values C1, C2, C3, CA, CB, CC of these capacitive sensors depend on the medium 36 between the respective electrode pair 30, more precisely on its dielectric constant.
  • the medium 36 is in particular the wash liquor and / or the (wet) laundry in the laundry drum 16 and also (moist) air in the unoccupied part of the laundry drum 16 Fig. 3
  • the capacitance value CC differs from the capacitance values CA and CB
  • the capacitance value C2 differs from the capacitance values C1 and C3, with a wash liquor only in the lower region of the laundry drum 16.
  • Fig. 4 shows the determination of the wash liquor level in the tub 12 and in the laundry drum 16th
  • the left part of fig Fig. 4 essentially corresponds Fig. 3 .
  • the three capacitive sensors are used which are formed from the three electrode pairs 30 in each case within a laundry driver 20 and which have three capacitance values C1, C2 or C3.
  • the right part of the figure Fig. 4 shows the time waveforms of a capacitance value C1, C2 or C3 for a low wash liquor level (A), a medium wash liquor level (B) and a high wash liquor level (C). If the electrode pair 30 is located within the wash liquor, the sensor generates the signal level 1, otherwise the signal level 0. With a corresponding calibration of the sensor system, the signal levels of the wash liquor levels can be determined very accurately in this way on the basis of the time periods. If an upper limit is exceeded, a too high wash liquor level is detected.
  • Fig. 5 shows the determination of the temperature of the wash liquor in the tub 12 and in the laundry drum sixteenth
  • Fig. 5 essentially corresponds Fig. 3 .
  • the three capacitive sensors are used, which are formed from the three electrode pairs 30 in each case within a laundry driver 20 and which have three capacitance values C1, C2 or C3.
  • the capacitance values C1, C2, C3 of the three electrode pairs 30 also change as a function of the temperature of the wash liquor.
  • Fig. 6 shows the determination of the load of the laundry drum 16, the moisture of the laundry in the laundry drum 16 or an imbalance of the load in the laundry drum 16th
  • Fig. 6 essentially corresponds Fig. 3 .
  • the three capacitive sensors are used, which are formed from the three electrode pairs 30 each of two adjacent Wäschemit facilitatorn 20 and the three capacitance values CA, CB and CC have.
  • the capacitance values of the sensors also change depending on how wet the laundry is in the region between a pair of electrodes 30.
  • Fig. 7 shows the determination of the rotational speed of the laundry drum 16.
  • fig Fig. 7 essentially corresponds Fig. 3 .
  • the three capacitive sensors are used, which are formed from the three pairs of electrodes 30 each within a Wäschemit meetings 20 and the three capacitance values C1, C2 and C3 have.
  • the right part of the figure Fig. 4 shows the temporal waveforms of the three capacitance values C1, C2 and C3.
  • the associated capacitive sensor has a lower capacitance value.
  • the three clothes hoppers 20 and thus also their electrode pairs 30 successively pass through the lower region of the tub 12, in which the wash liquor 36 is located, so that the in Fig. 7 shown, periodic and time-shifted waveforms. From the periods of these waveforms thus the speed of the laundry drum 16 can be determined.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP19175032.2A 2018-05-24 2019-05-17 Appareil de traitement du linge Withdrawn EP3572576A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018004188.4A DE102018004188B4 (de) 2018-05-24 2018-05-24 Wäschebehandlungsgerät

Publications (1)

Publication Number Publication Date
EP3572576A1 true EP3572576A1 (fr) 2019-11-27

Family

ID=66589401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19175032.2A Withdrawn EP3572576A1 (fr) 2018-05-24 2019-05-17 Appareil de traitement du linge

Country Status (3)

Country Link
EP (1) EP3572576A1 (fr)
CN (1) CN110528228A (fr)
DE (1) DE102018004188B4 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839333A1 (de) * 1978-09-09 1980-03-27 Miele & Cie Trommeltrockner mit messelektroden zur abtastung der waeschefeuchte
EP0549467A1 (fr) * 1991-12-23 1993-06-30 Crouzet Appliance Controls Système de commande d'arrêt d'un appareil sèche-linge
DE19960310A1 (de) 1999-12-14 2001-06-28 Bsh Bosch Siemens Hausgeraete Vorrichtung und Verfahren zur Messung der Beladung in einem Wäschebehandlungsgerät
EP1148169A2 (fr) * 2000-04-18 2001-10-24 Electrolux Zanussi S.p.A. Sèche-linge ou machine similaire avec contrôle de l'humidité par mesure de la conductivité
DE102009011877A1 (de) 2008-03-05 2009-09-10 Ident Technology Ag Schutzvorrichtung, insbesondere für Haushaltsgeräte
DE102008031774A1 (de) 2008-07-04 2010-02-11 Ident Technology Ag Sensoreinrichtung zur Bestimmung der Menge und/oder des Feuchtegrads von Wäsche in einem Wäschetrockner
WO2013182402A1 (fr) * 2012-06-06 2013-12-12 Arcelik Anonim Sirketi Machine à laver/sécher le linge
DE102012217975A1 (de) 2012-10-02 2014-04-03 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer batterielosen Sensoreinheit und entsprechendes Verfahren
US20150368853A1 (en) * 2014-06-18 2015-12-24 General Electric Company Clothes dryer with improved moisture sensing and wireless data transfer
DE102016216265A1 (de) * 2016-08-30 2018-03-01 BSH Hausgeräte GmbH Haushaltsgerät mit einer autarken Energieversorgung und Verfahren zum Betrieb eines solchen Haushaltsgeräts

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839333A1 (de) * 1978-09-09 1980-03-27 Miele & Cie Trommeltrockner mit messelektroden zur abtastung der waeschefeuchte
EP0549467A1 (fr) * 1991-12-23 1993-06-30 Crouzet Appliance Controls Système de commande d'arrêt d'un appareil sèche-linge
DE19960310A1 (de) 1999-12-14 2001-06-28 Bsh Bosch Siemens Hausgeraete Vorrichtung und Verfahren zur Messung der Beladung in einem Wäschebehandlungsgerät
EP1148169A2 (fr) * 2000-04-18 2001-10-24 Electrolux Zanussi S.p.A. Sèche-linge ou machine similaire avec contrôle de l'humidité par mesure de la conductivité
DE102009011877A1 (de) 2008-03-05 2009-09-10 Ident Technology Ag Schutzvorrichtung, insbesondere für Haushaltsgeräte
DE102008031774A1 (de) 2008-07-04 2010-02-11 Ident Technology Ag Sensoreinrichtung zur Bestimmung der Menge und/oder des Feuchtegrads von Wäsche in einem Wäschetrockner
WO2013182402A1 (fr) * 2012-06-06 2013-12-12 Arcelik Anonim Sirketi Machine à laver/sécher le linge
DE102012217975A1 (de) 2012-10-02 2014-04-03 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer batterielosen Sensoreinheit und entsprechendes Verfahren
US20150368853A1 (en) * 2014-06-18 2015-12-24 General Electric Company Clothes dryer with improved moisture sensing and wireless data transfer
DE102016216265A1 (de) * 2016-08-30 2018-03-01 BSH Hausgeräte GmbH Haushaltsgerät mit einer autarken Energieversorgung und Verfahren zum Betrieb eines solchen Haushaltsgeräts

Also Published As

Publication number Publication date
DE102018004188B4 (de) 2019-12-05
DE102018004188A1 (de) 2019-11-28
CN110528228A (zh) 2019-12-03

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