DE3920737A1 - Control device for program-controlled laundry dryer - registers loading state of drum and automatically adjusts performance to match load - Google Patents

Control device for program-controlled laundry dryer - registers loading state of drum and automatically adjusts performance to match load

Info

Publication number
DE3920737A1
DE3920737A1 DE3920737A DE3920737A DE3920737A1 DE 3920737 A1 DE3920737 A1 DE 3920737A1 DE 3920737 A DE3920737 A DE 3920737A DE 3920737 A DE3920737 A DE 3920737A DE 3920737 A1 DE3920737 A1 DE 3920737A1
Authority
DE
Germany
Prior art keywords
drum
control device
laundry
program
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.)
Granted
Application number
DE3920737A
Other languages
German (de)
Other versions
DE3920737C2 (en
Inventor
Rainer Dipl Phys Dr Stamminger
Guenther Ing Grad Ott
Hans-Joachim Dipl Ing Klug
Jens Dipl Ing Koehne
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.)
AEG Hausgeraete GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE3920737A priority Critical patent/DE3920737C2/en
Publication of DE3920737A1 publication Critical patent/DE3920737A1/en
Application granted granted Critical
Publication of DE3920737C2 publication Critical patent/DE3920737C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • 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
    • 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
    • D06F2103/04—Quantity, e.g. weight or variation of 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/16—Air properties
    • D06F2105/20—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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating

Abstract

A control device is for a programme-controlled household laundry dryer with a drum and at least two heating elements of different heating capacities for the drying air. A sensor registers the loading state of the drum or the weight of the laundry to be dried. At or after the start of the drying programme, the sensor delivers a pulse for the control device if the drum is underloaded. The pulse ensures a conversion to a reduced heating performance appropriate to the loading of the drum or the weight of the laundry.

Description

Die Erfindung betrifft eine Steuereinrichtung für einen programmgesteuerten Haushalt-Wäschetrockner nach dem Oberbegriff der Patentansprüche 1 bzw. 2.The invention relates to a control device for a program-controlled household clothes dryer according to the generic term of Claims 1 and 2 respectively.

Wäschetrockner mit zwei Heizelementen unterschiedlicher Heizleistung zum Aufheizen der Trocknungsluft sind allgemein bekannt. Solche Wäschetrockner sind mit einer sogenannten Schontaste ausgerüstet. Durch Drücken dieser Schontaste wird über die Steuereinrichtung des Wäschetrockners eine Absenkung der Heizleistung herbeigeführt. Das Absenken der Heizleistung garantiert niedrigere Trockentemperaturen und damit schonendste Trocknung temperaturempfindlicher Pflegeleichtwäsche. Es wird dabei empfohlen, die Schontaste auch bei kleineren Füllmengen zu betätigen, um bei solchen Kleinmengen keine zu hohen Trockentemperaturen zu erreichen und auch hierbei eine schonende Trocknung der Wäsche sicherzustellen.Clothes dryer with two heating elements of different heating power for Heating the drying air is generally known. Such Tumble dryers are equipped with a so-called gentle button. By Pressing this gentle button is via the control device of the Tumble dryer brought about a reduction in heating power. The Lowering the heating output guarantees lower drying temperatures and therefore gentle drying of temperature-sensitive easy care laundry. It is recommended to close the gentle button even with smaller fill quantities press to avoid excessive drying temperatures for such small quantities to achieve and also gentle drying of the laundry ensure.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, einen programmgesteuerten Wäschetrockner der in Rede stehenden Art so weiterzubilden, daß bei einer Minderbeladung (kleine Füllmenge) der Wäschetrommel ohne manuellen Eingriff durch die Bedienungsperson, d.h. automatisch eine reduzierte Heizleistung ausgewählt bzw. eingestellt wird. Based on this prior art, the object of the invention based on a program-controlled clothes dryer of the one in question Kind of training in such a way that in the case of a low load (small filling quantity) the laundry drum without manual intervention by the operator, i.e. a reduced heating output is automatically selected or is set.  

Die Lösung dieser Aufgabe gemäß der Erfindung besteht darin, daß durch eine den Beladungszustand der Wäschetrommel oder das Gewicht der zu trocknenden Wäsche erfassenden Sensoreinrichtung mit oder nach Beginn des Trocknungsprogrammes bei festgestellter Unterbeladung der Wäschetrommel für die Steuereinrichtung ein Impuls zum Umschalten auf einer auf den jeweiligen Beladungszustand der Wäschetrommel oder das Wäschegewicht abgestimmten reduzierten Heizleistung geliefert wird.The solution to this problem according to the invention is that by a the loading condition of the laundry drum or the weight of the drying device detecting laundry with or after the start of the drying program if undervoltage is detected Laundry drum for the control device an impulse to switch to one on the respective loading condition of the laundry drum or that Laundry weight matched reduced heating output is supplied.

Dieser Vorgang läuft in der Weise ab, daß durch die Sensoreinrichtung mit Beginn des Trocknungsprogrammes oder unmittelbar danach der Beladungszustand der Wäschetrommel erfaßt bzw. festgestellt wird. Wird eine Minder- bzw. Unterbeladung der Wäschetrommel durch die Sensoreinrichtung erkannt, so wird durch diese die Steuereinrichtung entsprechend aktiviert und eine auf den jeweiligen Beladungszustand der Wäschetrommel oder auf das jeweilige Wäschegewicht abgestimmte reduzierte Heizleistung eingeschaltet. Die in dem Wäschetrockner installierte Gesamtheizleistung von beispielsweise 2750 W ist auf zwei Heizkörper von 1650 W und 1100 W aufgeteilt. Dadurch ergeben sich die Möglichkeiten, daß bei einem Trockengutgewicht in der Wäschetrommel von 3 bis 5 kg beide Heizkörper mit der vollen Leistung von 2750 W eingeschaltet sind, während bei einem Trockengutgewicht von etwa 1,5 bis 3 kg nur der Heizkörper mit 1650 W und bei einem Trockengutgewicht bis etwa 1,5 nur der Heizkörper mit 1100 W eingeschaltet ist.This process takes place in such a way that by the sensor device with the start of the drying program or immediately afterwards Loading condition of the laundry drum is detected or determined. If the laundry drum is under- or under-loaded by the If the sensor device is recognized, it becomes the control device activated accordingly and one to the respective load state of the Drum or matched to the respective laundry weight reduced heating power switched on. The one in the dryer installed total heating capacity of, for example, 2750 W is on two Split radiators of 1650 W and 1100 W. This results in the Possibilities that with a dry weight in the laundry drum of 3 to 5 kg both radiators with the full power of 2750 W. are switched on, while at a dry material weight of about 1.5 to 3 kg only the radiator with 1650 W and with a dry weight up to about 1.5 only the radiator is switched on at 1100 W.

Gemäß einem weiteren Ausführungsbeispiel kann die Reduzierung der Gesamtheizleistung des Wäschetrockners auch dadurch erreicht werden, indem die Heizkörper in Abhängigkeit von der erfaßten bzw. festgestellten Wäschetrommel-Beladung getaktet werden. Vorteilhaft ist es dabei, eine Taktrate von ca. 0,5 bis 2 Minuten vorzusehen und einen Schaltrhythmus von 20-40% "Ein" zu 60-80% "Aus" anzustreben. Die vorgenannte Taktrate und der Schaltrhythmus können dabei elektronisch oder über eine einstellbare Zeitdehnung gesteuert werden.According to a further exemplary embodiment, the reduction in Total heating output of the dryer can also be achieved by the radiators depending on the detected or determined drum load are clocked. It is advantageous it to provide a clock rate of about 0.5 to 2 minutes and one Switching rhythm of 20-40% "On" to 60-80% "Off" should be aimed for. The The aforementioned clock rate and switching rhythm can be electronic or be controlled via an adjustable time extension.

Durch die vorgeschlagenen Maßnahmen wird die Heizleistung des Wäschetrockners automatisch an eine jeweils festgestellte Wäschemenge (Beladungszustand) in der Wäschetrommel angepaßt und dadurch ein energiesparendes und schonendes Trocknen der Wäsche auch bei Minder- bzw. Unterbeladung der Wäschetrommel ohne manuellen Eingriff sichergestellt.The heating measures of the Tumble dryer automatically to a determined amount of laundry  (Load state) adjusted in the laundry drum and thereby a energy-saving and gentle drying of the laundry Underloading or underloading of the laundry drum without manual intervention ensured.

Claims (3)

1. Steuereinrichtung für einen programmgesteuerten Haushalt-Wäschetrockner mit einer Wäschetrommel und mit mindestens zwei Heizelemente unterschiedlicher Heizleistung für die Trockenluft, gekennzeichnet durch eine den Beladungszustand der Wäschetrommel oder das Gewicht der zu trocknenden Wäsche erfassenden Sensoreinrichtung, die mit oder nach Beginn des Trocknungsprogrammes bei festgestellter Unterbeladung der Wäschetrommel für die Steuereinrichtung einen Impuls zum Umschalten auf einer auf den jeweiligen Beladungszustand der Wäschetrommel oder das Wäschegewicht abgestimmten reduzierten Heizleistung liefert.1.Control device for a program-controlled household tumble dryer with a laundry drum and with at least two heating elements of different heating power for the dry air, characterized by a sensor device which detects the loading condition of the laundry drum or the weight of the laundry to be dried, which with or after the start of the drying program if the load is undersold the laundry drum for the control device provides a pulse for switching over to a reduced heating power that is matched to the respective loading condition of the laundry drum or the laundry weight. 2. Steuereinrichtung für einen programmgesteuerten Haushalt-Wäschetrockner mit einer Wäschetrommel und mit einer elektrischen Heizeinrichtung für die Trocknungsluft, dadurch gekennzeichnet, daß bei einer Minderbeladung der Wäschetrommel die Heizeinrichtung in Abhängigkeit von der erfaßten bzw. festgestellten Wäschetrommel-Beladung getaktet wird.2. Control device for a program-controlled Household tumble dryer with one drum and one electrical heating device for the drying air, thereby characterized in that when the laundry drum is under-loaded Heating device depending on the detected or determined Laundry drum loading is clocked. 3. Steuereinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eine Taktrate von ca. 0,5 bis 2 Minuten und ein Schaltrhythmus von 20-40% "Ein" zu 60-80% "Aus" gewählt wird.3. Control device according to claim 2, characterized in that a Clock rate of approx. 0.5 to 2 minutes and a switching rhythm of 20-40% "On" to 60-80% "Off" is selected.
DE3920737A 1989-06-24 1989-06-24 Control device for a program-controlled household clothes dryer Expired - Fee Related DE3920737C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3920737A DE3920737C2 (en) 1989-06-24 1989-06-24 Control device for a program-controlled household clothes dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3920737A DE3920737C2 (en) 1989-06-24 1989-06-24 Control device for a program-controlled household clothes dryer

Publications (2)

Publication Number Publication Date
DE3920737A1 true DE3920737A1 (en) 1991-01-10
DE3920737C2 DE3920737C2 (en) 1998-07-02

Family

ID=6383493

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3920737A Expired - Fee Related DE3920737C2 (en) 1989-06-24 1989-06-24 Control device for a program-controlled household clothes dryer

Country Status (1)

Country Link
DE (1) DE3920737C2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138440A1 (en) * 1991-11-22 1993-05-27 Licentia Gmbh Laundry dryer - has drive motor and radial ventilator to reduce heating when drum is not full
DE4403625A1 (en) * 1994-02-05 1995-08-10 Miele & Cie Laundry dryer uses resistance measuring device
EP2554740A3 (en) * 2011-08-01 2013-07-31 Samsung Electronics Co., Ltd. Drying apparatus and washing machine having the same and control method thereof
DE102014216853A1 (en) 2013-10-25 2015-04-30 BSH Bosch und Siemens Hausgeräte GmbH Method for loading-dependent operation of a dryer and dryer suitable therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904274A1 (en) * 1979-02-05 1980-08-14 Bosch Siemens Hausgeraete Double heater unit for domestic linen dryer - uses only one programme for circuit controlled by two thermostats
DE3740748C2 (en) * 1987-12-02 1995-04-20 Licentia Gmbh Timing device for a tumble dryer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904274A1 (en) * 1979-02-05 1980-08-14 Bosch Siemens Hausgeraete Double heater unit for domestic linen dryer - uses only one programme for circuit controlled by two thermostats
DE3740748C2 (en) * 1987-12-02 1995-04-20 Licentia Gmbh Timing device for a tumble dryer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AEG Prospekt "Waschautomaten, Trockner, Schleu- dern, Bügler", Ausgabe H 245 103 100- 0287300./04 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138440A1 (en) * 1991-11-22 1993-05-27 Licentia Gmbh Laundry dryer - has drive motor and radial ventilator to reduce heating when drum is not full
DE4403625A1 (en) * 1994-02-05 1995-08-10 Miele & Cie Laundry dryer uses resistance measuring device
DE4403625C2 (en) * 1994-02-05 2003-08-07 Miele & Cie Clothes dryer with a device for determining the degree of filling in the drum
EP2554740A3 (en) * 2011-08-01 2013-07-31 Samsung Electronics Co., Ltd. Drying apparatus and washing machine having the same and control method thereof
US9657432B2 (en) 2011-08-01 2017-05-23 Samsung Electronics Co., Ltd. Drying apparatus and washing machine having the same and control method thereof
DE102014216853A1 (en) 2013-10-25 2015-04-30 BSH Bosch und Siemens Hausgeräte GmbH Method for loading-dependent operation of a dryer and dryer suitable therefor
DE102014216853B4 (en) 2013-10-25 2022-03-24 BSH Hausgeräte GmbH Process for the load-dependent operation of a dryer and a dryer suitable for this purpose

Also Published As

Publication number Publication date
DE3920737C2 (en) 1998-07-02

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Legal Events

Date Code Title Description
8120 Willingness to grant licences paragraph 23
8127 New person/name/address of the applicant

Owner name: AEG HAUSGERAETE GMBH, 90429 NUERNBERG, DE

8110 Request for examination paragraph 44
D2 Grant after examination
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee