EP1108809A1 - Vorrichtung und Verfahren zur Messung der Beladung in einem Wäschebehandlungsgerät - Google Patents
Vorrichtung und Verfahren zur Messung der Beladung in einem Wäschebehandlungsgerät Download PDFInfo
- Publication number
- EP1108809A1 EP1108809A1 EP00124851A EP00124851A EP1108809A1 EP 1108809 A1 EP1108809 A1 EP 1108809A1 EP 00124851 A EP00124851 A EP 00124851A EP 00124851 A EP00124851 A EP 00124851A EP 1108809 A1 EP1108809 A1 EP 1108809A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- electrode
- tub
- jacket wall
- measuring
- 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
Links
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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
- D06F34/18—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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/26—Unbalance; 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
- D06F2105/60—Audible signals
Definitions
- the invention relates to a device for measuring the load in a laundry treatment device, in which a laundry drum is rotatably mounted. Likewise relates the invention relates to a method for measuring the load.
- DE 37 36 809 A1 discloses a laundry treatment device, i. H. a household washing machine or spin dryer, known, for measuring the drum load Measuring equipment is available.
- the measurement is based on the fact that a torque required to accelerate a drum loaded with laundry is measured directly. This should cause disturbances such as V-belt losses to be excluded.
- the known method therefore presupposes that the laundry treatment device already is put into operation in order to be able to measure the laundry weight.
- the loading of a household washing machine is thereby measured that the tub is suspended on suspension springs, their travel depends on the spring load, so that the springs according to the weight of the tub be deflected. Since only the total weight of the tub, laundry drum and laundry load is measured is the relative change in spring deflection by loading and unloading the laundry relatively low.
- this object is achieved in a device of the type mentioned solved in that a first, formed by a wall of the laundry drum or arranged on the wall of the laundry drum, at a first electrical potential lying electrode and a second, fixed at a second electrical potential lying electrode are arranged at a short distance from each other the distance between the electrodes can be changed by loading or unloading, and that a capacitance corresponding to a distance between the electrodes by a measuring device is measurable.
- two on different electrical Potential electrodes that are spaced apart by a dielectric are, form a capacitor whose capacitance can be measured, for example by measuring the reactance generated by the capacitor in an in an AC circuit or a Wheatstone bridge.
- the capacitance is inversely proportional to the distance between the electrodes. So if the laundry drum is loaded by the loading of laundry and itself the laundry drum lowers, the distance between the jacket wall decreases the washing drum and one outside the washing drum within the height of the shaft driving the laundry drum fixed electrode. If the Electrode for example above the washing drum the height of the washing drum driving shaft is arranged, the distance increases, and the capacity of the capacitor formed by the two electrodes is reduced. If the second electrode fixed below the height of the drive shaft of the laundry drum the capacity increases when loaded. The second electrode is advantageous arranged either below or above the laundry drum.
- a plurality of second electrodes are preferably also used, for example both above and below the laundry drum, each with the laundry drum as interact with the first electrode. Then if the individual capacitors in parallel the capacitors of the individual capacitors add up, and the measurement accuracy in measuring a change in weight becomes even greater.
- the washing drum is made of metal, the washing drum itself forms the electrode. If the washing drum is made of plastic, it can be electrically conductive Arrange the ring on the outer surface of the laundry drum, as it is already the case with a dryer is used as a sliding contact for measuring laundry moisture. A Such an annular electrode can then additionally be used as the first electrode for measurement the load in conjunction with at least one second electrode by using of the capacitive effect.
- the weight of the laundry load can be before Determine the program start of the laundry treatment device.
- a is also preferred Display element is provided, which is integrated for example in the control panel and either as a numerical display or as an illuminated display, for example in the form of a Light bar works.
- the laundry load obtained by means of the device according to the invention can be also use in a control device provided in the laundry treatment device, which can be fed from the measuring device, so that the treatment of the filled Linen items are made taking into account the weight of the laundry is, for example, the measurement of the amount of water, the detergent, the mechanical Treatment in a washing machine or to calculate the drying time in a tumble dryer, provided data on the moisture content in the laundry are available.
- the measuring device is connected to the control device, it can also directly be integrated into it.
- a tub 1 consists of a non-conductive material, for example Plastic, and carries in its rear wall 2 a shaft journal 3 of a laundry drum 4.
- the shaft journal 3 is via roller bearings 5, 6 in a received by the rear wall 2 Bearing sleeve 7 stored.
- the tub 1 carries an electrode 9 on the outside of a jacket wall 8 is connected to a voltage source and is at an electrical potential.
- the Electrode 9 is on the jacket wall 8 of a jacket wall 10 of the laundry drum 4th Cut.
- the jacket wall 10 is preferably grounded and forms a second electrode. Form due to the potential difference between the electrode 9 and the jacket wall 10 this a capacitor, the electrode 9 and the jacket wall 10 by a Dielectric are separated from each other.
- the dielectric material is the air as well as that Plastic material from which the jacket wall 8 is made.
- the jacket wall 8 consists of a metal, that is to say is electrically conductive, it can be used instead of the electrode 9 as an electrode, provided for an electrical separation between the washing drum 4 (consisting of a metal) and the jacket wall 8 is taken care of.
- the rear wall 2 of the tub 1 is made of plastic.
- a laundry drum can also be used Insert 4 made of plastic, provided that 4 or a separate electrode is arranged on the outside of the washing drum 4 with the jacket wall 8, if this serves as an electrode, or with the electrode 9 as a capacitor works.
- Insert 4 made of plastic provided that 4 or a separate electrode is arranged on the outside of the washing drum 4 with the jacket wall 8, if this serves as an electrode, or with the electrode 9 as a capacitor works.
- the use of a ring-shaped on the jacket wall is particularly suitable a drum arranged in a tumble dryer.
- Electrodes can also be used provide on the outer or inner wall of the jacket wall 8.
- the arrangement of electrodes on the outer or inner wall of the Sheath wall 10 if the sheath wall 10 consists of a non-conductive material.
- a further electrode 9 ′ can also be provided on the side of the laundry drum 4 opposite the electrode 9, that is to say on the underside of the tub 1 on its jacket wall 8, in which case then by reducing the distance between the jacket wall 8 and the jacket wall 10 Loading of the laundry drum occurs a positive change in capacity.
- the electrodes 9 and 9 ' can then also be connected in parallel to one another in order to measure the sum of the two changes in capacitance, so that a smaller measurement error occurs.
- the measuring method described here is not only suitable for static measurements with Loading or unloading the laundry drum 4, but also for measuring unbalance Rotation of the laundry drum 4. If around the circumference of the tub 2 several electrodes 9, 9 'are provided, which are preferably equally spaced distribute on the outer circumference or the inner circumference of the jacket wall 8, can by measuring the changes in capacitance that occur with unbalance Detect position of the occurrence of the unbalance, so that, for example, after the Imbalances have been detected, the laundry can be redistributed to, for example, afterwards to start a new spin cycle.
- the electrode 9 is connected to a measuring device 12 via a line 11; this is in turn connected to a control device 16.
- the electrically conductive jacket wall 10 of the laundry drum 4 is also via an electrically conductive bottom wall 13 the shaft journal 3, which consists of a metal, a sliding contact 14 and a line 15 connected to the measuring device 12. There is therefore the potential difference between the electrode 9 and the jacket wall 10 as an electrical signal and is the Control device 16 supplied.
- the signals are preferably stored in a memory 17 which is assigned to the control device 16 is stored in order to make a comparison between different capacitance values with corresponding states of the laundry drum 4 to enable. From the data available in the control device 16 customer service information can also be obtained; there can be alarm displays or generate error displays that are displayed, for example, on the control panel become.
- the capacitance values can also be used for laundry treatment to influence in the laundry treatment device. For example, from the capacity value or a change in capacity and the information that can be extracted from it conclude about the weight of the laundry or change in weight of the laundry drum 4, how much water, detergent etc. are used for the washing process have to. By comparing currently measured capacity values with stored capacity values distance changes between the washing drum 4 and grasp the tub.
- an electrical contact can also be made on the outer bearing shell of the ball bearing 6 and then via the line 15 with the Control device 16 may be connected.
- the laundry machine is on Tumble dryer, it can be determined which drying time is necessary, if the Moisture content of the laundry is known.
- a prerequisite for the use of the invention is a laundry drum mounted on one side, which is preferably mounted horizontally, but the invention can also be then use when the washing drum 4 is inclined to the horizontal, for example by up to 15 °.
- the single electrode 9 several can also be used Electrodes side by side on the outer circumference or the inner circumference of the jacket wall Arrange 8. The same applies to the arrangement of several electrodes on or within the jacket wall 10, provided the jacket wall 10 is made of a non-conductive Material exists. All electrodes can also be designed as ring-shaped electrodes.
Abstract
Description
Claims (21)
- Vorrichtung zur Messung der Beladung einer waagerecht oder geneigt liegend gelagerten Wäschetrommel (4) in einem Wäschebehandlungsgerät, dadurch gekennzeichnet, daß eine erste, durch eine Wandung der Wäschetrommel (4) gebildete oder auf der Wandung der Wäschetrommel (4) angeordnete, auf einem ersten Potential liegende Elektrode und eine zweite ortsfest auf einem zweiten elektrischen Potential liegende Elektrode (9) unter einem geringen Abstand zueinander angeordnet sind, der durch Beladung oder Entladung veränderbar ist, und daß eine jeweils einem Abstand der Elektroden (9) entsprechende Kapazität durch eine Meßeinrichtung (16) meßbar ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Meßeinrichtung mit einer Steuereinrichtung (16) des Wäschebehandlungsgeräts verbunden ist und daß von der Meßeinrichtung (12) gemessene Werte in der Steuereinrichtung (16) auswertbar sind.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Speicher (17) vorhanden ist, in dem die Kapazität oder Kapazitätsänderungen abspeicherbar sind.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die ortsfeste Elektrode (9) auf der Innenseite oder Außenseite einer Mantelwand (8) eines Laugenbehälters (1) angeordnet ist, wobei die Mantelwand (8) aus einem dielektrischen Material besteht.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die zweite Elektrode durch die Mantelwand (8) des Laugenbehälters (1) gebildet ist, wobei die Mantelwand (8) aus einem elektrisch leitenden Material gebildet ist und elektrisch von einem Wellenzapfen (3) getrennt ist, über den die Wäschetrommel (4) in einer Rückwand (2) des Laugenbehälters (1) gelagert ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Rückwand (2) aus einem elektrisch nicht letenden Material besteht.
- Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Elektrode (9) ringförmig ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß mehrere Elektroden (9, 9') auf der Innenseite oder Außenseite der Mantelwand (8) des Laugenbehälters (1) angeordnet sind.
- Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Wäschetrommel (4) eine elektrisch leitfähige Mantelwand (10) aufweist und daß diese als erste Elektrode dient, daß die Mantelwand (10) elektrisch leitend mit dem Wellenzapfen (3) verbunden ist und daß dieser elektrisch leitend mit der Meßeinrichtung (12) verbunden ist.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der Wellenzapfen (3) über einen Schleifkontakt (14) mit der Meßeinrichtung (12) verbunden ist.
- Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Mantelwand (10) der Wäschetrommel (4) aus einem dielektrischen Material besteht, daß auf der Außenseite oder Innenseite der Mantelwand (10) mindestens eine Elektrode angeordnet ist und daß diese elektrisch leitend mit dem Wellenzapfen (3) verbunden ist und dieser seinerseits mit der Meßeinrichtung verbunden ist.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß Elektroden (9, 9') sowohl auf dem oberen Rand des Laugenbehälters (1) als auch auf dem unteren Rand des Laugenbehälters (1) angeordnet sind.
- Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß die Elektroden (9) einander gegenüberliegen.
- Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Meßeinrichtung (12) in einer Steuereinrichtung (12) des Wäschebehandlungsgeräts angeordnet oder mit dieser verbunden ist.
- Vorrichtung nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Meßeinrichtung (12) mit einem Speicher (16) verbunden ist, in dem Kapazitätswerte oder Kapazitätsänderungen abspeicherbar sind.
- Verfahren zur Messung des Gewichts eines Wäschepostens in einem Wäschebehandlungsgerät, dadurch gekennzeichnet, daß eine Kapazitätsänderung während des Beladens einer Wäschetrommel 4 gemessen wird.
- Verfahren nach Anspruch 16, dadurch gekennzeichnet, daß der gemessene Wert angezeigt wird.
- Verfahren nach Anspruch 16 oder 17, dadurch gekennzeichnet, daß bei Überladung der Wäschetrommel (4) ein Alarmsignal erzeugt wird.
- Verfahren nach einem der Ansprüche 16 bis 18, dadurch gekennzeichnet, daß Kapazitätsänderungen während des Betriebs des Wäschebehandlungsgeräts gemessen werden und daß aus den Kapazitätswerten Unwuchten der Wäschetrommel (4) bei der Umdrehung ermittelt werden.
- Verfahren nach einem der Ansprüche 16 bis 18, dadurch gekennzeichnet, daß Kapazitätswerte gemessen werden und mit in einem Speicher (17) gespeicherten Werten für Kapazitäten verglichen werden, um Abstandsänderungen zwischen der Wäschetrommel (4) und dem Laugenbehälter (1) zu ermitteln.
- Verfahren nach Anspruch 19, dadurch gekennzeichnet, daß aus gemessenen Kapazitätsänderungen auf den Zustand des Laugenbehälters (1) geschlossen wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19960310 | 1999-12-14 | ||
DE19960310A DE19960310A1 (de) | 1999-12-14 | 1999-12-14 | Vorrichtung und Verfahren zur Messung der Beladung in einem Wäschebehandlungsgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1108809A1 true EP1108809A1 (de) | 2001-06-20 |
EP1108809B1 EP1108809B1 (de) | 2004-08-18 |
Family
ID=7932642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00124851A Expired - Lifetime EP1108809B1 (de) | 1999-12-14 | 2000-11-14 | Vorrichtung und Verfahren zur Messung der Beladung in einem Wäschebehandlungsgerät |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1108809B1 (de) |
AT (1) | ATE274091T1 (de) |
DE (2) | DE19960310A1 (de) |
ES (1) | ES2226688T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1988209A2 (de) * | 2007-04-30 | 2008-11-05 | Electrolux Home Products Corporation N.V. | Verfahren zum Steuern eines Trommelwäschetrockners |
WO2010123197A1 (en) * | 2009-04-22 | 2010-10-28 | Lg Electronics Inc. | Washing machine and controlling method thereof |
DE102015204331B4 (de) | 2015-03-11 | 2019-06-19 | BSH Hausgeräte GmbH | Haushaltsgerät zur Pflege von Wäschestücken mit einer Messvorrichtung an einer Dichtungsmanschette |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10104682B4 (de) * | 2001-02-02 | 2004-09-09 | Henno Schotten | Verfahren zur Messung von Unwucht und Beladung bei Waschmaschinen |
DE102008031774B4 (de) * | 2008-07-04 | 2010-04-15 | Ident Technology Ag | Sensoreinrichtung zur Bestimmung der Menge und/oder des Feuchtegrads von Wäsche in einem Wäschetrockner |
DE102014218278A1 (de) * | 2014-09-12 | 2016-03-17 | BSH Hausgeräte GmbH | Verfahren zum Betreiben eines Hausgeräts |
DE102018004188B4 (de) * | 2018-05-24 | 2019-12-05 | Diehl Ako Stiftung & Co. Kg | Wäschebehandlungsgerät |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4411143A (en) * | 1980-07-02 | 1983-10-25 | Bosch-Siemens Hausgerate Gmbh | Laundry treatment machine |
US4742698A (en) * | 1985-05-16 | 1988-05-10 | Kabushiki Kaisha Toshiba | Washer-dehydrator |
US5165260A (en) * | 1989-05-03 | 1992-11-24 | Bsg-Schalttechnik Gmbh & Co., Kg | Washing-machine |
US5497638A (en) * | 1995-06-19 | 1996-03-12 | General Electric Company | System based on inductive coupling for sensing loads in a washing machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3736809A1 (de) * | 1987-10-30 | 1989-05-11 | Licentia Gmbh | Verfahren und vorrichtung zur trommelbeladungsmessung, insbesondere bei haushaltwaschmaschinen und waescheschleudern |
DE4431846C2 (de) * | 1994-09-07 | 2001-02-15 | Diehl Ako Stiftung Gmbh & Co | Verfahren zum beladungsabhängigen Steuern und/oder Regeln einer Waschmaschine oder eines Wäschetrockners |
DE19736422A1 (de) * | 1997-08-21 | 1999-02-25 | Bosch Siemens Hausgeraete | Verfahren zur Bestimmung der Beladungsmenge eines Wäschetrockners |
DE19750248C1 (de) * | 1997-11-13 | 1999-03-04 | Miele & Cie | Waschmaschine mit einer Einrichtung zur Ermittlung des Wäschegewichts |
DE19828207A1 (de) * | 1998-06-25 | 1999-12-30 | Miele & Cie | Verfahren zur Ermittlung des Restfeuchtegehaltes der Wäsche in einem Wäschetrockner sowie Vorrichtung zur Durchführung des Verfahrens |
-
1999
- 1999-12-14 DE DE19960310A patent/DE19960310A1/de not_active Withdrawn
-
2000
- 2000-11-14 DE DE50007457T patent/DE50007457D1/de not_active Expired - Lifetime
- 2000-11-14 EP EP00124851A patent/EP1108809B1/de not_active Expired - Lifetime
- 2000-11-14 ES ES00124851T patent/ES2226688T3/es not_active Expired - Lifetime
- 2000-11-14 AT AT00124851T patent/ATE274091T1/de not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4411143A (en) * | 1980-07-02 | 1983-10-25 | Bosch-Siemens Hausgerate Gmbh | Laundry treatment machine |
US4742698A (en) * | 1985-05-16 | 1988-05-10 | Kabushiki Kaisha Toshiba | Washer-dehydrator |
US5165260A (en) * | 1989-05-03 | 1992-11-24 | Bsg-Schalttechnik Gmbh & Co., Kg | Washing-machine |
US5497638A (en) * | 1995-06-19 | 1996-03-12 | General Electric Company | System based on inductive coupling for sensing loads in a washing machine |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1988209A2 (de) * | 2007-04-30 | 2008-11-05 | Electrolux Home Products Corporation N.V. | Verfahren zum Steuern eines Trommelwäschetrockners |
WO2008131876A2 (en) * | 2007-04-30 | 2008-11-06 | Electrolux Home Products Corporation N.V. | Method of controlling a tumble laundry drier |
EP1988209A3 (de) * | 2007-04-30 | 2008-11-19 | Electrolux Home Products Corporation N.V. | Verfahren zum Steuern eines Trommelwäschetrockners |
WO2008131876A3 (en) * | 2007-04-30 | 2008-12-18 | Electrolux Home Prod Corp | Method of controlling a tumble laundry drier |
US8234796B2 (en) | 2007-04-30 | 2012-08-07 | Electrolux Home Products Corporation N.V. | Method of controlling a tumble laundry drier |
US8844161B2 (en) | 2007-04-30 | 2014-09-30 | Electrolux Home Products Corporation N.V. | Method of controlling a tumble laundry drier |
WO2010123197A1 (en) * | 2009-04-22 | 2010-10-28 | Lg Electronics Inc. | Washing machine and controlling method thereof |
DE102015204331B4 (de) | 2015-03-11 | 2019-06-19 | BSH Hausgeräte GmbH | Haushaltsgerät zur Pflege von Wäschestücken mit einer Messvorrichtung an einer Dichtungsmanschette |
Also Published As
Publication number | Publication date |
---|---|
ATE274091T1 (de) | 2004-09-15 |
DE19960310A1 (de) | 2001-06-28 |
ES2226688T3 (es) | 2005-04-01 |
DE50007457D1 (de) | 2004-09-23 |
EP1108809B1 (de) | 2004-08-18 |
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