EP1895043B1 - Steuerungsvorrichtung für eine Waschmaschine und/oder einen Wäschetrockner - Google Patents

Steuerungsvorrichtung für eine Waschmaschine und/oder einen Wäschetrockner Download PDF

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Publication number
EP1895043B1
EP1895043B1 EP06120068A EP06120068A EP1895043B1 EP 1895043 B1 EP1895043 B1 EP 1895043B1 EP 06120068 A EP06120068 A EP 06120068A EP 06120068 A EP06120068 A EP 06120068A EP 1895043 B1 EP1895043 B1 EP 1895043B1
Authority
EP
European Patent Office
Prior art keywords
machine
laundry washing
drying machine
laundry
drum
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.)
Not-in-force
Application number
EP06120068A
Other languages
English (en)
French (fr)
Other versions
EP1895043A1 (de
Inventor
Roberto Giordano
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 Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to ES06120068T priority Critical patent/ES2327439T3/es
Priority to PL06120068T priority patent/PL1895043T3/pl
Priority to AT06120068T priority patent/ATE433005T1/de
Priority to EP06120068A priority patent/EP1895043B1/de
Priority to DE602006007134T priority patent/DE602006007134D1/de
Priority to RU2007133109/12A priority patent/RU2442852C2/ru
Publication of EP1895043A1 publication Critical patent/EP1895043A1/de
Application granted granted Critical
Publication of EP1895043B1 publication Critical patent/EP1895043B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14Arrangements for detecting or measuring specific parameters
    • D06F34/18Condition of the laundry, e.g. nature or weight
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/08Humidity
    • D06F2103/10Humidity expressed as capacitance or resistance
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/24Spin speed; Drum movements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F25/00Washing 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 
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/04Signal transfer or data transmission arrangements
    • D06F34/05Signal transfer or data transmission arrangements for wireless communication between components, e.g. for remote monitoring or control
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/32Control of operations performed in domestic laundry dryers 
    • D06F58/34Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/50Responding to irregular working conditions, e.g. malfunctioning of blowers

Definitions

  • the present invention relates to a laundry washing and/or drying machine, particularly of household type, provided with an improved control device which allows to detect at least a functional parameter, like humidity, temperature and similar, in order to drive the machine accordingly.
  • a laundry washing and/or drying machine is normally provided with a system to measure the humidity of the clothes which are contained into the rotating drum, in order to stop the functioning of the machine when the laundry is sufficiently dried.
  • a widely used system to control the humidity in a machine of this type is a so called "conductivity meter", because of its good performances.
  • the rotating drum is divided in two parts, electrically insulated one each other. The electrical resistance between these two rotating parts is measured.
  • the measurement system comprises an electronic circuit and two brushes, said brushes making an electric connection of the two "half drums" with the measurement circuit. The two brushes are stationary and the half drums rotate against them.
  • the weak point of the conductivity meter system is represented by the brushes for some different reasons.
  • the life of the brushes is limited, due to the mechanical friction that is developed during the rotation of the drum; consequently, there is a relevant high cost of maintenance. Moreover, a troublesome noise is generated due to the friction of the brushes against the drum.
  • the brushes of the current conductivity meter system are necessary, as it is not possible to put an electronic board directly on the rotating drum. This is because the electronic board needs to be electrically supplied and to communicate (wireless, with RF or IR system) to the control board of the machine.
  • EP 1 321 563 discloses a laundry washing and/or drying machine, provided with a measuring device for determining at least one parameter of the laundry or the drying air contained in the rotary drum, having a measuring sensor mounted on the rotary drum cooperating with a stationary reader. The measured values are transmitted between the sensor and the reader via a cordless link.
  • the control means are based on the transponder technology or, as alternative, on generic mechanical means actuated by the drum rotation.
  • the main scope of the present invention is to provide an improved control device for a laundry washing and/or drying machine, said device do not employing mechanical elements to generate and supply the necessary information signals to the control board of the machine, so as the drawbacks of the known systems may be avoided.
  • a specific scope of the invention is to provide a new humidity control device which allows also the possibility to measure the drum speed, in order to implement an improved control of the machine, e.g. to detect a possible breaking of the motor or of the belt driving the drum.
  • the technical solution of the present invention is based on the use of an electric energy generator which may be directly associated to the drum of a laundry washing and/or drying machine.
  • the generator can supply an electronic board, put directly on the drum and suitable to measure the conductivity of the clothes contained into the drum, and to communicate to the control board of the machine.
  • the electronic board comprises a microcomputer of known type (not shown in the drawings).
  • the electric energy generator 6 ( Figure 1 ) consists of a mechanical part and an electrical part.
  • the mechanical part comprises a permanent magnet 10 mounted freely to slide within a pipe 12 made of non conductive material, like plastic.
  • the electrical part comprises a coil 14, which is wound outside the pipe 12 and connected to a switched-mode power supply (SMPS) 16 through an electric circuit, which comprises a bridge rectifier 18 and a capacitor 20.
  • SMPS switched-mode power supply
  • the electric circuit generates a DC voltage (e.g. 5V) which is supplied to the control board of the machine (not shown).
  • a DC voltage e.g. 5V
  • the value of the current (and so the relevant power) will depend on the characteristic of the magnet and its speed, so as on the electrical characteristic of the coil.
  • bridge rectifier 18 may be substituted by any equivalent means, e.g. a single rectifier which provides a half wave rectification.
  • the control board containing the electric energy generator could be directly associated to the drum 22, e.g. fastened on the external surface of the rear side ( Figure 2 ).
  • the pipe 12 is straightforward and its section may be of every kind, preferably circular; of course, the section of the magnet 10 should be of the same shape.
  • the signals are elaborated by SMPS 16 in the associated electric circuit and transformed in DC voltage signals, which are sent to the control board of the machine, to implement the corresponding functions of the same.
  • the communication of the information from the electronic board, associated to the drum, to the control board of the machine may be implemented in one of well known different ways, like wireless, RF or IR system.
  • a correlation between the number of the revolutions of the drum and the degree of humidity of the laundry may be established, taking also into account all other known parameters, like laundry type, laundry amount, temperature and so on.
  • the electric signal issued by the electric energy generator is elaborated within the control board of the machine and compared with preset data, in a conventional way, by means of the microcomputer embodied herein.
  • FIG. 4 An alternative embodiment of the present invention is schematically represented in Figure 4 .
  • the permanent magnet 10 is embodied within a circular pipe 12, and a plurality of coils 14 are equally reciprocally spaced on the external surface of the pipe 12. In this case, during the rotation of the drum 22, the magnet 10 rotates within the circular pipe 12 passing successively through the coils 14.
  • each coil 14 cannot be greater than that of the magnet 10, and the axial distance between two contiguous coils should be at least equal to the axial length of the magnet.
  • Both the disclosed solutions give also the possibility to measure the drum speed, by analysing the characteristics (distance between successive pulses, period of pulses, etc.) of the output voltage. This could be done with the same microcomputer that measures the conductivity and manages the communication with the control board of the machine.
  • Such a measurement is useful, for instance, to detect possible malfunctioning of the machine, like a breaking of the motor or of the belt which rotates the drum.
  • the electric energy generator which is used to measure the humidity amount of the laundry may be also employed to detect and control other functional parameters of a machine, provided that such a machine is equipped with a rotating component.

Claims (6)

  1. Maschine zum Waschen und/oder Trocknen von Wäsche, insbesondere vom Haushaltstyp, die mit einer rotierenden Trommel (22) versehen ist, die geeignet ist, zu waschende und/oder zu trocknende Wäsche zu enthalten, und die auch mit Steuermitteln versehen ist, die geeignet sind, mindestens einen Betriebsparameter der Maschine, wie z.B. die Feuchtigkeit der Wäsche, zu messen, wobei die Messmittel mit der Schalttafel der Maschine verbunden sind, um diese in Abhängigkeit von dem ermittelten Messwert anzutreiben, wobei die Messmittel einen Stromgenerator (6) umfassen, der direkt mit der rotierenden Trommel (22) verbunden ist und drahtlos mit der Schalttafel der Maschine kommuniziert, dadurch gekennzeichnet, dass der Stromgenerator (6) einen Permanentmagneten (10) umfasst, der in einem Rohr (12) aus nicht leitendem Material frei gleitbar ist, um dessen Außenfläche mindestens eine Spule (14) gewickelt ist, wobei die Spule mit einer elektronischen Tafel verbunden ist, die geeignet ist, ein Spannungssignal zu erstellen und an die Schalttafel der Maschine zu senden.
  2. Maschine zum Waschen und/oder Trocknen von Wäsche nach Anspruch 1, dadurch gekennzeichnet, dass der Stromgenerator (6) an der Außenfläche der Rückseite der Trommel (22) befestigt ist.
  3. Maschine zum Waschen und/oder Trocknen von Wäsche nach Anspruch 1, dadurch gekennzeichnet, dass die elektronische Tafel eine Schaltstromversorgung (16), einen Brückengleichrichter (18) und einen Kondensator (20) umfasst.
  4. Maschine zum Waschen und/oder Trocknen von Wäsche nach Anspruch 1, dadurch gekennzeichnet, dass das Rohr (12) aus nicht leitendem Material geradlinig geformt ist.
  5. Maschine zum Waschen und/oder Trocknen von Wäsche nach Anspruch 1, dadurch gekennzeichnet, dass das Rohr (12) aus nicht leitendem Material kreisförmig ist und dass eine Vielzahl von Spulen (14) gleichmäßig und wechselseitig voneinander beabstandet an der Außenfläche des Rohrs angebracht ist.
  6. Maschine zum Waschen und/oder Trocknen von Wäsche nach Anspruch 1, dadurch gekennzeichnet, dass der Stromgenerator (6) verwendet wird, um die Drehgeschwindigkeit der Trommel (22) zu messen, um auch eine mögliche Betriebsstörung der Maschine zu erkennen.
EP06120068A 2006-09-04 2006-09-04 Steuerungsvorrichtung für eine Waschmaschine und/oder einen Wäschetrockner Not-in-force EP1895043B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES06120068T ES2327439T3 (es) 2006-09-04 2006-09-04 Maquina lavadora y/o secadora de ropa con dispositivo de control mejorado.
PL06120068T PL1895043T3 (pl) 2006-09-04 2006-09-04 Urządzenie sterujące dla maszyny pralniczej i/lub suszącej
AT06120068T ATE433005T1 (de) 2006-09-04 2006-09-04 Steuerungsvorrichtung für eine waschmaschine und/oder einen wäschetrockner
EP06120068A EP1895043B1 (de) 2006-09-04 2006-09-04 Steuerungsvorrichtung für eine Waschmaschine und/oder einen Wäschetrockner
DE602006007134T DE602006007134D1 (de) 2006-09-04 2006-09-04 Steuerungsvorrichtung für eine Waschmaschine und/oder einen Wäschetrockner
RU2007133109/12A RU2442852C2 (ru) 2006-09-04 2007-09-03 Стиральная машина с сушкой или сушильная машина с усовершенствованным устройством управления

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06120068A EP1895043B1 (de) 2006-09-04 2006-09-04 Steuerungsvorrichtung für eine Waschmaschine und/oder einen Wäschetrockner

Publications (2)

Publication Number Publication Date
EP1895043A1 EP1895043A1 (de) 2008-03-05
EP1895043B1 true EP1895043B1 (de) 2009-06-03

Family

ID=37622302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06120068A Not-in-force EP1895043B1 (de) 2006-09-04 2006-09-04 Steuerungsvorrichtung für eine Waschmaschine und/oder einen Wäschetrockner

Country Status (6)

Country Link
EP (1) EP1895043B1 (de)
AT (1) ATE433005T1 (de)
DE (1) DE602006007134D1 (de)
ES (1) ES2327439T3 (de)
PL (1) PL1895043T3 (de)
RU (1) RU2442852C2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2441880A1 (de) 2010-10-15 2012-04-18 Whirlpool Corporation Verfahren zum Trocknen von Kleidern in einem Trockner und Feuchtigkeitsbeurteilungssteuerung zum Erhalt einer automatischen Zyklusbeendigung
DE102012217975A1 (de) 2012-10-02 2014-04-03 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer batterielosen Sensoreinheit und entsprechendes Verfahren
DE102013209209A1 (de) * 2013-05-17 2014-11-20 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit Energierückgewinnung und Verfahren zum Rückgewinnen von Energie in einem Haushaltsgerät

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602007013017D1 (de) * 2007-05-30 2011-04-21 Electrolux Home Prod Corp Waschmaschine
DE102016213232A1 (de) 2016-07-20 2018-01-25 BSH Hausgeräte GmbH Haushaltsgerät mit verbesserter Steuerung und Verfahren zum Betrieb eines solchen Haushaltsgeräts
DE102016216265A1 (de) 2016-08-30 2018-03-01 BSH Hausgeräte GmbH Haushaltsgerät mit einer autarken Energieversorgung und Verfahren zum Betrieb eines solchen Haushaltsgeräts
TR201721912A2 (tr) * 2017-12-26 2019-07-22 Arcelik As Döner tambur i̇çi̇n enerji̇ kaynaği
DE102018219349A1 (de) 2018-11-13 2020-05-14 BSH Hausgeräte GmbH Wäschetrockner mit verbesserter Steuerung und Verfahren zu seinem Betrieb
DE102018219361A1 (de) 2018-11-13 2020-05-14 BSH Hausgeräte GmbH Wäschetrockner mit Beschleunigungssensor und Verfahren zu seinem Betrieb
CN112064298A (zh) * 2019-05-23 2020-12-11 青岛海尔洗衣机有限公司 衣物处理设备
CN112064297B (zh) * 2019-05-23 2023-05-12 青岛海尔洗衣机有限公司 衣物处理设备
WO2021023109A1 (zh) * 2019-08-02 2021-02-11 青岛海尔洗衣机有限公司 衣物处理设备及滚筒洗衣机
CN111021019B (zh) * 2019-12-26 2022-12-09 青岛海尔洗衣机有限公司 干衣设备的控制方法
WO2021160006A1 (zh) * 2020-02-12 2021-08-19 青岛海尔洗衣机有限公司 衣物处理设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1564923A (de) * 1968-03-14 1969-04-25
DE4031981C2 (de) * 1990-10-09 1996-03-07 Telefunken Microelectron Meßvorrichtung für Waschmaschinen
FR2685575A1 (fr) * 1991-12-23 1993-06-25 Sextant Avionique Generateur electrique d'alimentation d'un composant entraine en rotation.
FR2685359B1 (fr) * 1991-12-23 1995-10-20 Sextant Avionique Systeme de commande d'arret d'un appareil seche-linge.
DE4336350A1 (de) * 1993-10-25 1995-04-27 Bosch Siemens Hausgeraete Verfahren zum Bestimmen der Wäschemenge in einer Wäschebehandlungsmaschine
ITPN20000023A1 (it) * 2000-04-18 2001-10-18 Electrolux Zanussi Elettrodome Macchina asciugabiancheria, o simile, con controllo conduttimetrico dell'umidita'
DE10163200A1 (de) * 2001-12-21 2003-07-10 Bsh Bosch Siemens Hausgeraete Wäschebehandlungsvorrichtung
DE10242144A1 (de) * 2002-09-04 2004-03-18 E.G.O. Control Systems Gmbh & Co. Kg Wäschetrockner mit Sensoreinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2441880A1 (de) 2010-10-15 2012-04-18 Whirlpool Corporation Verfahren zum Trocknen von Kleidern in einem Trockner und Feuchtigkeitsbeurteilungssteuerung zum Erhalt einer automatischen Zyklusbeendigung
DE102012217975A1 (de) 2012-10-02 2014-04-03 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer batterielosen Sensoreinheit und entsprechendes Verfahren
DE102013209209A1 (de) * 2013-05-17 2014-11-20 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit Energierückgewinnung und Verfahren zum Rückgewinnen von Energie in einem Haushaltsgerät

Also Published As

Publication number Publication date
RU2442852C2 (ru) 2012-02-20
RU2007133109A (ru) 2009-03-10
DE602006007134D1 (de) 2009-07-16
ES2327439T3 (es) 2009-10-29
ATE433005T1 (de) 2009-06-15
EP1895043A1 (de) 2008-03-05
PL1895043T3 (pl) 2009-10-30

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