EP1639177B1 - Method for cleaning water-bearing domestic cleaning appliances and water-bearing domestic cleaning appliance - Google Patents

Method for cleaning water-bearing domestic cleaning appliances and water-bearing domestic cleaning appliance Download PDF

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Publication number
EP1639177B1
EP1639177B1 EP04739761A EP04739761A EP1639177B1 EP 1639177 B1 EP1639177 B1 EP 1639177B1 EP 04739761 A EP04739761 A EP 04739761A EP 04739761 A EP04739761 A EP 04739761A EP 1639177 B1 EP1639177 B1 EP 1639177B1
Authority
EP
European Patent Office
Prior art keywords
program
cleaning
water
appliance
drive
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.)
Expired - Lifetime
Application number
EP04739761A
Other languages
German (de)
French (fr)
Other versions
EP1639177A1 (en
Inventor
Christian Eric Sechelmann
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL04739761T priority Critical patent/PL1639177T3/en
Publication of EP1639177A1 publication Critical patent/EP1639177A1/en
Application granted granted Critical
Publication of EP1639177B1 publication Critical patent/EP1639177B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0057—Cleaning of machines parts, e.g. removal of deposits like lime scale or proteins from piping or tub
    • 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 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/04—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/03—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/02—Water discharge, e.g. opening or closure of discharge valve
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/06—Water heaters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/10—Spin speed
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/20—Operation modes, e.g. delicate laundry washing programs, service modes or refreshment cycles
    • 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
    • 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
    • D06F2105/42—Detergent or additive supply
    • 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
    • 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 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives

Definitions

  • the invention relates to a method for controlling a program-controlled water-conducting household cleaning appliance, in particular a washing machine, with a program control device which controls a water inlet and outlet device, a heating device and / or a drive device and further the duration of a program section, the water level, the heating temperature , the drive speed and / or the duration of the drive control controls.
  • Such methods of control are commonly used, for example, in a washing machine or a dishwasher. These methods are designed for the objects to be cleaned and / or cared for. For washing machines, predominantly textiles and, for dishwashers, mainly dishes and cutlery are to be cleaned. These methods are optimized with regard to the duration of the process and the consumption of water, cleaning agent and energy and with regard to the protection of the material to be cleaned.
  • auxiliaries For the preparation of household cleaning appliances, adjuvants, such as lubricants and additives or surface passivations, are used. These excipients can not be completely removed during a device inspection included in the manufacturing process. There are therefore still low residues of these auxiliaries within the device. These auxiliaries are to be completely removed, in particular, from the components which come into contact with water during proper operation, prior to proper commissioning of the household cleaning appliance, so that the objects to be cleaned are not contaminated by these auxiliaries. Therefore, the user is advised in the instructions for use of household cleaning appliances that the unloaded household cleaning appliance with a recommended program, such as in the case of a washing machine the program "cotton", should be operated at least once with detergent before the intended use of equipment.
  • a recommended program such as in the case of a washing machine the program "cotton”
  • the intended methods for cleaning and / or maintaining household items are not designed and optimized for cleaning the parts of a household cleaning appliance that come into contact with water during proper operation. Therefore, such processes consume for the cleaning of components more time, water, detergent and / or energy than for such a special cleaning, especially before the initial start-up of the household cleaning appliance, is necessary. If an operator does not or only partially complies with the instructions for use, and the intended use of the household cleaning appliance is carried out without prior cleaning of the components that come into contact with water during proper operation, the items to be cleaned may be swept by the auxiliaries remaining in the unit during one of the first cleaning operations be contaminated.
  • Out DE 197 42 282 C1 is a method for rinsing lint from a washer-dryer known, which may have accumulated in a drying process of laundry in the washer-dryer, in particular in a tub and a rotatably mounted laundry drum therein.
  • the user of the washer dryer has the option to select a special program by means of a control.
  • the special program causes a filling of the tub with water to a level that reaches to the bottom of the laundry drum, and operating the laundry drum at an increased speed to swirl the water in the tub and laundry drum area. After a predetermined period of time, the tub is emptied again while the drum is rotating, at which point the previously detached lint is removed.
  • the cleaning program includes a washing program section in which the components are cleaned with water and, if necessary, cleaning agents with agitation. This program section is followed by a program section Rinsing.
  • a method for disinfecting components such as a laundry drum, a tub and waterways, a washing machine or dishwasher known.
  • a metering device for a disinfectant is provided. With a pump, the disinfectant is introduced into a waterway of the washing machine or dishwasher. The disinfectant is used to remove or remove germs and pathogens.
  • washing machines off WO 02/12611 A1 and WO 02/02857 A1 which has a display device for outputting instructions for washing programs and their Have use.
  • WO 02/12611 A1 such indications are displayed on the display device when the user presses a so-called help button.
  • An indication of indications of operations in the laundry loading is carried out in the washing machine according to WO 02/02857 A1 automatically after switching on the washing machine.
  • the invention is therefore an object of the invention to provide a method of household cleaning appliance described above, which is to ensure an operator without complete reading of the instructions, the said auxiliaries are effectively removed in this program, a self-cleaning Within a short program duration and at the same time with low Resource use, such as water, cleaning agents and energy done.
  • the program control device controls the water inlet, the drain, the water level, the drive speed and / or the duration of the drive control within at least one program section and / or the duration of at least one program section such that all during normal operation with water in Wetted components with water and / or cleaning solution are wetted in this program section.
  • this method will be referred to as a self-cleaning program.
  • This inventive method for a household cleaning device is optimized specifically for the cleaning of the components coming into contact with water during proper operation.
  • these components can be cleaned in a shorter time than with a program intended for cleaning household items (eg laundry).
  • This self-cleaning should be done before the first use of the household cleaning device to remove the production-related remaining auxiliaries. If during the normal operation of the household cleaning appliance, the water-bearing components are heavily contaminated, for example by dog hair after washing a dog's blanket or by a forgotten paper handkerchief, advantageously again the self-cleaning program can be performed.
  • the program control device detects switching on a household cleaning device automatically and then causes an output to request the implementation of a self-cleaning program. According to advantageous developments may additionally Program control device further expenses for additional requests for operator actions and / or information instructions cause that should be considered to carry out this self-cleaning program.
  • the reference to the metered amount of a cleaning agent that can be used in self-cleaning can also be output.
  • the dosage is specially adapted to the amount of water used for self-cleaning.
  • the program control device advantageously detects a first time switching on the device after the device manufacturing, the so-called initial start-up. Thereafter, no output for prompting the execution of the self-cleaning program by the program control device is issued when the household cleaning appliance is repeatedly turned on.
  • the program parameters for controlling the water supply is advantageously chosen so that just just as much water tapers or the water level in the device is so low, in which just all during normal operation Water coming in contact components are wetted.
  • the water level in the washing machine can be chosen so low that a washing drum is just immersed in the water.
  • a water level is sufficient up to the scooping, Thus, the water level can be further reduced. Additional amounts of water, such as those required for the cleaning of, for example, textiles in a washing machine, are not required.
  • the method of performing self-cleaning for a washing machine includes the selection of further advantageous program parameters.
  • a choice of the temperature of about 90 ° C in the program section washing has been found to be particularly advantageous.
  • the complete wetting and thus the cleaning of the components of a washing machine which come into contact with water during proper operation is additionally assisted by the fact that the laundry drum is moved and the peripheral speed of the laundry drum is greater than 1.1 m / s.
  • the operation of the laundry drum takes place at intervals in changing directions of rotation and / or the duration of Drive control is more than 65% in the washing and / or rinsing program sections.
  • the water in the washing machine is effectively kept in motion and the auxiliaries are removed from the components.
  • the self-cleaning program consumes less water, cleaning agent and energy than hitherto with the customary use of a designated program of the household cleaning appliance.
  • the inventive water-conducting household cleaning device has a program control device that generates control signals for a water inlet and outlet device, a heating device and / or a drive device such that the water inlet, the drain, the water level, the temperature, the drive speed and / or the Duration of the drive control within at least one program section and / or the duration of at least one program section are variable.
  • This inventive design of a water-conducting household cleaning appliance is particularly well suited for equipping a washing machine with a self-leveling program.
  • auxiliaries such as oily lubricants
  • the equipment test performed at the end of the manufacturing process of each washing machine includes a functional and safety check of the washing machine. This device test is not sufficient in terms of duration and intensity to completely remove all adjuvants from the components that come in contact with water during proper operation. In contrast, the intended operation for the cleaning and care of objects, such. B. of textiles in washing machines, designed and suitable for the self-cleaning of the washing machine from an ecological and economic point of view only to a limited extent.
  • Modern washing machines have a program control device which controls, among other things, a water supply and drain device, a heating device and a drive device.
  • the duration of a program section, the water level, the temperature, the drive speed and the duration of the drive control is controlled or regulated with this program control device.
  • the program design can be made very variable and inexpensive.
  • modern washing machines have increasingly diverse possibilities for operation and program selection. Instead of previously usual simple program rotary selector switch more and more menu-driven displays are used with associated input keys.
  • the number of programs offered is no longer limited by the number of selector positions or by the size of the memory device.
  • special programs are now also possible in a program control device, such as a self-cleaning program according to the invention.
  • the program controller generally has a microcontroller with volatile (RAM) and non-volatile (ROM or EEPROM) memory devices, which may be both static and rewritable.
  • RAM volatile
  • ROM non-volatile
  • EEPROM electrically erasable programmable read-only memory
  • the program control device is designed such that the respectively last completely executed program of the washing machine, for example the carrying out of the after-production device test, is recorded in a rewritable non-volatile memory device ("last program"). After switching on the washing machine, which is detected by the program control device (for example, by a so-called "power on” - detection), the program control device checks the memory entry "last program".
  • the program control device Only when the device is switched on for the first time does the program control device recognize the entry "device test after production" as the "last program” and then causes a request, for example on the display of a control panel: "Please execute the self-cleaning of the washing machine You START, otherwise CANCEL ". Subsequently, further instructions can be issued, such as the request to give detergent in the appropriate device, or the indication of a recommended amount of detergent. If the operator of the washing machine acknowledges the request with "Cancel", the program control device causes the display of the intended program offer the washing machine the display of the control panel, and the operator can select a program other than self-cleaning.
  • the corresponding program name or code is entered by the program control device in the memory device as a "last program". This ensures that no renewed reference to the self-cleaning is effected after restarting the washing machine. This happens even if the last saved program is the name of any proper work program, eg. B. "Coloreds 60 ° C”.
  • the self-cleaning is offered as another program or special program to the intended programs of the washing machine. This may be desired, for example, for cleaning the machine of dog or cat hair.
  • the program start of the self-cleaning program brings about a program sequence for cleaning the components that come into contact with water during proper operation.
  • the procedure consists of the sections "Washing" and "Rinsing".
  • washing the program control device causes the activation of the water inlet device and at the same time monitors the water level. Since washing machines generally contain a plurality of water supply paths, all the feed devices are controlled in succession, so that all water supply paths are wetted.
  • the control of the entire water supply takes place until the water level has reached a level at which the laundry drum just comes into contact with the water and the heater is sufficiently covered with water.
  • the laundry drum is moved so that as many components as possible come into contact with water. Then the water is heated to a temperature of about 90 ° C and the laundry drum is still moving. For this purpose, the laundry drum is operated with alternating directions of rotation and the ratio of the drive to the program section duration of the drive is greater than 65%, for example 70%.
  • the rotary movement of the laundry drum takes place at a circumferential speed of more than 1.1 m / s.
  • the speed of the laundry drum is about 60 1 / min; thus results in a drum diameter of about 470 mm, a peripheral speed of about 1.5 m / s. At this drum speed are Also, the laundry drum and the tub brought in contact with water well.
  • the self-cleaning is still supported by added detergent. This is compared to a cleaning of textiles a reduced use of cleaning agents needed.
  • the required amount of detergent results from the lower amount of water required for self-cleaning and the alkali concentration required for the cleaning process. It has been found that the duration of the program section "washing” can be limited to 20 minutes to ensure sufficient self-cleaning.
  • the program control device causes at the end of the program section "washing” a control of the drain device until the washing machine is completely emptied. Due to the warm water or the warm lye, the sewage ways are cleaned in this phase.
  • the "Washing" section of the program is followed by the "Rinse” section, which again consists of the steps of water supply, movement of the laundry drum with alternating directions of rotation and the emptying of the washing machine.
  • the water level is again only so high that the laundry drum is just immersed in the water.
  • the rinsing serves primarily to eliminate residues of the cleaning agent or the lye and / or resulting foam.
  • a rinsing process with a duration of about 5 minutes is needed, and during rinsing, the water is not additionally heated.
  • the emptying of the washing machine the drive is not activated.
  • the throwing off of water can be dispensed with since there are no textiles with bound water in the laundry drum.
  • the operator is inevitably advised during initial commissioning of the washing machine to perform a self-cleaning of the washing machine before use as intended. Further, the self-cleaning according to the method is carried out within a short time using little water, detergent and energy.
  • the self-cleaning program according to the invention can also be applied to a dishwasher.
  • Used features of the washing machine are mutatis mutandis to the characteristics of the dishwasher transferable.
  • the drive of a washing machine can also be understood analogously as a circulation pump of the dishwasher become.
  • the moving washing drum of the washing machine can be understood as at least one moving spray arm, the respective advantageous peripheral speeds of the corresponding components being different.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Description

Die Erfindung geht aus von einem Verfahren zur Steuerung eines programmgesteuerten wasserführenden Haushaltreinigungsgerätes, insbesondere einer Waschmaschine, mit einer Programmsteuereinrichtung, die eine Wasserzu- und Ablauflaufeinrichtung, eine Heizungseinrichtung und/oder eine Antriebseinrichtung ansteuert und die ferner die Dauer eines Programmabschnittes, den Wasserstand, die Heiztemperatur, die Antriebsdrehzahl und/oder die Dauer der Antriebsansteuerung steuert.The invention relates to a method for controlling a program-controlled water-conducting household cleaning appliance, in particular a washing machine, with a program control device which controls a water inlet and outlet device, a heating device and / or a drive device and further the duration of a program section, the water level, the heating temperature , the drive speed and / or the duration of the drive control controls.

Derartige Verfahren zur Steuerung sind beispielweise bei einer Waschmaschine oder einer Geschirrspülmaschine allgemein gebräuchlich. Diese Verfahren sind für die zu reinigenden und/oder zu pflegenden Gegenstände ausgelegt. Bei Waschmaschinen sollen überwiegend Textilen und bei Geschirrspülmaschinen überwiegend Geschirr und Besteck gereinigt werden. Dabei sind diese Verfahren hinsichtlich der Verfahrensdauer und des Verbrauches an Wasser, Reinigungsmittel und Energie und hinsichtlich der Schonung des zu reinigenden Materials optimiert.Such methods of control are commonly used, for example, in a washing machine or a dishwasher. These methods are designed for the objects to be cleaned and / or cared for. For washing machines, predominantly textiles and, for dishwashers, mainly dishes and cutlery are to be cleaned. These methods are optimized with regard to the duration of the process and the consumption of water, cleaning agent and energy and with regard to the protection of the material to be cleaned.

Zur Herstellung von Haushaltreinigungsgeräten werden Hilfsstoffe, wie beispielsweise Gleit- und Fügemittel oder Oberflächenpassivierungen, verwendet. Diese Hilfsstoffe können bei einer im Herstellungsablauf beinhalteten Geräteprüfung nicht vollständig entfernt werden. Es verbleiben daher noch geringe Rückstände dieser Hilfsstoffe innerhalb des Gerätes. Diese Hilfsstoffe sollen insbesondere von den während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteilen vor einer bestimmungsgemäßen Inbetriebnahme des Haushaltreinigungsgerätes vollständig entfernt werden, damit die zu reinigenden Gegenstände nicht durch diese Hilfsstoffe verunreinigt werden. Deshalb wird der Bediener in den Gebrauchsanweisungen der Haushaltreinigungsgeräte darauf hingewiesen, dass das unbeladene Haushaltreinigungsgerät mit einem empfohlenen Programm, wie beispielsweise im Falle einer Waschmaschine dem Programm "Baumwolle", vor dem bestimmungsgemäßen Geräteeinsatz mindestens einmal mit Reinigungsmittel betrieben werden soll.For the preparation of household cleaning appliances, adjuvants, such as lubricants and additives or surface passivations, are used. These excipients can not be completely removed during a device inspection included in the manufacturing process. There are therefore still low residues of these auxiliaries within the device. These auxiliaries are to be completely removed, in particular, from the components which come into contact with water during proper operation, prior to proper commissioning of the household cleaning appliance, so that the objects to be cleaned are not contaminated by these auxiliaries. Therefore, the user is advised in the instructions for use of household cleaning appliances that the unloaded household cleaning appliance with a recommended program, such as in the case of a washing machine the program "cotton", should be operated at least once with detergent before the intended use of equipment.

Die bestimmungsgemäßen Verfahren zum Reinigen und/oder Pflegen von Haushaltsgegenständen sind nicht für eine Reinigung der während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteile eines Haushaltreinigungsgerätes ausgelegt und dafür optimiert. Daher verbrauchen solche Verfahren für die Reinigung von Bauteilen mehr Zeit, Wasser, Reinigungsmittel und/oder Energie als für eine solche spezielle Reinigung, insbesondere vor der Erst-Inbetriebnahme des Haushaltreinigungsgerätes, notwendig ist. Wenn ein Bediener die Gebrauchsanweisung nicht oder nur unvollständig beachtet, und der bestimmungsgemäße Gebrauch des Haushaltreinigungsgerätes erfolgt ohne vorherige Reinigung der während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteile, können die zu reinigenden Gegenstände bei einer der ersten Reinigungsvorgänge durch die noch im Gerät verbliebenen Hilfsstoffe verunreinigt werden.The intended methods for cleaning and / or maintaining household items are not designed and optimized for cleaning the parts of a household cleaning appliance that come into contact with water during proper operation. Therefore, such processes consume for the cleaning of components more time, water, detergent and / or energy than for such a special cleaning, especially before the initial start-up of the household cleaning appliance, is necessary. If an operator does not or only partially complies with the instructions for use, and the intended use of the household cleaning appliance is carried out without prior cleaning of the components that come into contact with water during proper operation, the items to be cleaned may be swept by the auxiliaries remaining in the unit during one of the first cleaning operations be contaminated.

Aus DE 197 42 282 C1 ist ein Verfahren zum Ausspülen von Flusen aus einem Waschtrockner bekannt, die sich gegebenenfalls In einem Trocknungsablauf von Wäsche in dem Waschtrockner, insbesondere in einem Laugenbehälter und einer darin drehbar gelagerten Wäschetrommel, angesammelt haben. Der Benutzer des Waschtrockners hat die Möglichkeit ein Sonderprogramm mittels eines Bedienelementes auszuwählen. Das Sonderprogramm bewirkt ein Füllen des Laugenbehälters mit Wasser bis zu einem Füllstand, der an den unteren Rand der Wäschetrommel reicht, und ein Betreiben der Wäschetrommel mit einer erhöhten Drehzahl, um das Wasser im Laugenbehälter- und Wäschetrommelbereich zu verwirbeln. Nach einer vorbestimmten Dauer wird der Laugenbehälter bei drehender Trommel wieder entleert, bei dem die vorher abgelösten Flusen abgeführt werden.Out DE 197 42 282 C1 is a method for rinsing lint from a washer-dryer known, which may have accumulated in a drying process of laundry in the washer-dryer, in particular in a tub and a rotatably mounted laundry drum therein. The user of the washer dryer has the option to select a special program by means of a control. The special program causes a filling of the tub with water to a level that reaches to the bottom of the laundry drum, and operating the laundry drum at an increased speed to swirl the water in the tub and laundry drum area. After a predetermined period of time, the tub is emptied again while the drum is rotating, at which point the previously detached lint is removed.

Wie bei dem Verfahren gemäß DE 197 42 282 C1 weist die Waschmaschine gemäß JP 02 104 396 A ein Sonderprogramm zur Reinigung von wasserführenden Bauteilen auf, das der Benutzer durch eine spezielle Programmeingabe auswählen kann. Das Reinigungsprogramm beinhaltet einem Programmabschnitt Waschen, in dem die Bauteile mit Wasser und gegebenenfalls Reinigungsmittel unter Bewegung gereinigt werden. An diesen Programmabschnitt schließt sich ein Programmabschnitt Spülen an.As in the method according to DE 197 42 282 C1 instructs the washing machine according to JP 02 104 396 A a special program for cleaning water-bearing components, which the user can select by means of a special program input. The cleaning program includes a washing program section in which the components are cleaned with water and, if necessary, cleaning agents with agitation. This program section is followed by a program section Rinsing.

Darüber hinaus ist aus FR 2 754 184 A1 ein Verfahren zum Desinfizieren von Bauteilen, wie einer Wäschetrommel, eines Laugenbehälters und von Wasserwegen, einer Wasch - oder Geschirrspülmaschine bekannt. Zur Durchführung dieses Verfahrens ist eine Dosiereinrichtung für ein Desinfektionsmittel vorgesehen. Mit einer Pumpe wird das Desinfektionsmittel in einen Wasserweg der Wasch- oder Geschirrspülmaschine eingebracht. Das Desinfektionsmittel dient zur Beseitigung bzw. Entfernung von Keimen und Krankheitserregern.In addition, is off FR 2 754 184 A1 a method for disinfecting components, such as a laundry drum, a tub and waterways, a washing machine or dishwasher known. To carry out this method, a metering device for a disinfectant is provided. With a pump, the disinfectant is introduced into a waterway of the washing machine or dishwasher. The disinfectant is used to remove or remove germs and pathogens.

Weiter sind Waschmaschinen aus WO 02/12611 A1 und WO 02/02857 A1 bekannt, die eine Anzeigeeinrichtung zur Ausgabe von Hinweisen zu Waschprogrammen und deren Verwendung haben. Bei der Waschmaschine nach WO 02/12611 A1 werden solche Hinweise auf der Anzeigeeinrichtung dargestellt, wenn der Benutzer eine sogenannte Hilfe-Taste betätigt. Eine Anzeige von Hinweisen auf Bedienungen bei der Wäschebeschickung erfolgt bei der Waschmaschine gemäß WO 02/02857 A1 automatisch nach einem Einschalten der Waschmaschine.Next are washing machines off WO 02/12611 A1 and WO 02/02857 A1 known, which has a display device for outputting instructions for washing programs and their Have use. At the washing machine after WO 02/12611 A1 such indications are displayed on the display device when the user presses a so-called help button. An indication of indications of operations in the laundry loading is carried out in the washing machine according to WO 02/02857 A1 automatically after switching on the washing machine.

Daher liegt der Erfindung die Aufgabe zugrunde, ein Verfahren eines oben beschrieben Haushaltreinigungsgerätes anzugeben, welches für einen Bediener auch ohne vollständlgem Lesen der Gebrauchsanweisung sicherstellen soll, das die genannten Hilfsstoffe wirksam entfernt werden Bei diesem Programm soll eine Selbstreinigung Innerhalb einer kurzen Programmdauer und zugleich bei geringem Ressourceneinsatz, wie Wasser, Reinigungsmittel und Energie erfolgen.The invention is therefore an object of the invention to provide a method of household cleaning appliance described above, which is to ensure an operator without complete reading of the instructions, the said auxiliaries are effectively removed in this program, a self-cleaning Within a short program duration and at the same time with low Resource use, such as water, cleaning agents and energy done.

Diese Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 erfindungsgemäß gelöst. Zur Steuerung eines programmgesteuerten wasserführenden Haushaltreinigungsgerätes steuert die Programmsteuervorrichtung den Wasserzulauf, den Ablauf, den Wasserstand, die Antriebsdrehzahl und/oder die Dauer der Antriebsansteuerung innerhalb mindestens eines Programmabschnittes und/oder die Dauer mindestens eines Programmabschnittes derart, dass alle während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteile mit Wasser und/oder Reinigungslösung in diesem Programmabschnitt benetzt werden. Nachfolgend wird dieses Verfahren als Selbstreinigungsprogramm bezeichnet.This object is achieved by a method having the features of claim 1 according to the invention. For controlling a program-controlled water-conducting household cleaning appliance, the program control device controls the water inlet, the drain, the water level, the drive speed and / or the duration of the drive control within at least one program section and / or the duration of at least one program section such that all during normal operation with water in Wetted components with water and / or cleaning solution are wetted in this program section. Hereinafter, this method will be referred to as a self-cleaning program.

Dieses erfindungsgemäße Verfahren für ein Haushaltreinigungsgerät ist speziell für die Reinigung der während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteile optimiert. Somit können diese Bauteile in einer kürzeren Zeit gereinigt werden als mit einem Programm, das zur Reinigung von Haushaltsgegenständen (z. B. Wäsche) bestimmt ist. Diese Selbstreinigung soll vor der ersten Inbetriebnahme des Haushaltreinigungsgerätes erfolgen, um die herstellungsbedingt verbliebenen Hilfsstoffe zu entfernen. Falls während des bestimmungsgemäßen Betriebs des Haushaltreinigungsgerätes die wasserführenden Bauteile beispielsweise durch Hundehaare nach der Wäsche einer Hundedecke oder durch ein vergessenes Papier-Taschentuch stark verschmutzt werden, kann vorteilhafterweise wiederum das Selbstreinigungsprogramm durchgeführt werden.This inventive method for a household cleaning device is optimized specifically for the cleaning of the components coming into contact with water during proper operation. Thus, these components can be cleaned in a shorter time than with a program intended for cleaning household items (eg laundry). This self-cleaning should be done before the first use of the household cleaning device to remove the production-related remaining auxiliaries. If during the normal operation of the household cleaning appliance, the water-bearing components are heavily contaminated, for example by dog hair after washing a dog's blanket or by a forgotten paper handkerchief, advantageously again the self-cleaning program can be performed.

Die Programmsteuereinrichtung erkennt ein Einschalten eines Haushaltreinigungsgerätes selbsttätig und bewirkt dann eine Ausgabe zur Aufforderung der Durchführung eines Selbstreinigungsprogramms. Gemäß vorteilhaften Weiterbildungen kann zusätzlich die Programmsteuereinrichtung weitere Ausgaben für ergänzende Aufforderungen zu Bedienhandlungen und/oder von Informationshinweisen bewirken, die zur Durchführung dieses Selbstreinigungsprogramms beachtet werden sollen. Vorteilhafterweiser kann auch der Hinweis auf die Dosiermenge eines Reinigungsmittels, dass bei der Selbstreinigung eingesetzt werden kann, ausgegeben werden. Die Dosiermenge ist speziell auf die bel der Selbstreinigung verwendete Wassermenge abgestimmt. Durch diese Zwangsführung kann vorteilhafterweise die Selbstreinigung des Haushaltreinigungsgerätes sichergestellt werden, auch ohne dass der Bediener die Gebrauchsanweisung vollständig gelesen hat. Damit eine Selbstreinigung nicht unnötigerweise nach jedem Einschalten des Haushaltreinigungsgerätes durchführt wird, erkennt die Programmsteuereinrichtung vorteilhafterweise ein erstmaliges Einschalten des Gerätes nach der Geräteherstellung, die sogenannte Erst-Inbetriebnahme. Danach wird keine Ausgabe zur Aufforderung der Durchführung des Selbstreinigungsprogramms durch die Programmsteuereinrichtung bei wiederholtem Einschalten des Haushaltreinigungsgerätes mehr ausgegeben.The program control device detects switching on a household cleaning device automatically and then causes an output to request the implementation of a self-cleaning program. According to advantageous developments may additionally Program control device further expenses for additional requests for operator actions and / or information instructions cause that should be considered to carry out this self-cleaning program. Advantageously, the reference to the metered amount of a cleaning agent that can be used in self-cleaning can also be output. The dosage is specially adapted to the amount of water used for self-cleaning. By this forced operation, the self-cleaning of the household cleaning appliance can advantageously be ensured, even without the operator has read the instructions completely. So that a self-cleaning is not unnecessarily carried out after each turn on the household cleaning device, the program control device advantageously detects a first time switching on the device after the device manufacturing, the so-called initial start-up. Thereafter, no output for prompting the execution of the self-cleaning program by the program control device is issued when the household cleaning appliance is repeatedly turned on.

Bei dem Verfahren zur Durchführung der Selbstreinigung eines Haushaltsreinlgungsgerätes nach einer weiteren Weiterbildung wird vorteilhafterweise der Programmparameter zur Steuerung des Wasserzulaufes so gewählt, dass gerade nur so viel Wasser zuläuft bzw. der Wasserstand im Gerät so gering ist, bei dem gerade alle während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteile benetzt werden. Der Wasserstand bei der Waschmaschine kann so gering gewählt sein, dass eine Wäschetrommel gerade in das Wasser eintaucht. Im dem Falle, dass die Wäschetrommel Mittel zum Schöpfen des Wassers besitzt, ist ein Wasserstand bis zu den Schöpfmitteln ausreichend, Somit kann der Wasserstand noch weiter reduziert werden. Zusätzliche Wassermengen, wie sie für die Reinigung von beispielsweise Textilen in einer Waschmaschine benötigt werden, sind nicht erforderlich.In the method for carrying out the self-cleaning of a Haushaltsreinlgungsgerätes according to a further development of the program parameters for controlling the water supply is advantageously chosen so that just just as much water tapers or the water level in the device is so low, in which just all during normal operation Water coming in contact components are wetted. The water level in the washing machine can be chosen so low that a washing drum is just immersed in the water. In the case that the laundry drum has means for scooping the water, a water level is sufficient up to the scooping, Thus, the water level can be further reduced. Additional amounts of water, such as those required for the cleaning of, for example, textiles in a washing machine, are not required.

Das Verfahren zur Durchführung der Selbstreinigung für eine Waschmaschine beinhaltet die Wahl von weiteren vorteilhaften Programmparametem. Um eine kurze Dauer des Selbstreinigungsprogramms zu ermöglichen, hat sich eine Wahl der Temperatur von ca. 90 °C im Programmabschnitt Waschen als besonders vorteilhaft ergeben. Die vollständige Benetzung und somit die Reinigung der während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteile einer Waschmaschine wird zusätzlich dadurch unterstützt, dass die Wäschetrommel bewegt wird und die Umfangsgeschwindigkeit der Wäschetrommel dabei größer als 1,1 m/s ist. Dabei erfolgt der Betrieb der Wäschetrommel intervallartig in wechselnden Drehrichtungen und/oder die Dauer der Antriebsteuerung beträgt in den Programmabschnitten Waschen und/oder Spülen mehr als 65%. Somit wird das in der Waschmaschine befindliche Wasser wirksam in Bewegung gehalten und die Hilfsstoffe von den Bauteilen abgetragen.The method of performing self-cleaning for a washing machine includes the selection of further advantageous program parameters. In order to allow a short duration of the self-cleaning program, a choice of the temperature of about 90 ° C in the program section washing has been found to be particularly advantageous. The complete wetting and thus the cleaning of the components of a washing machine which come into contact with water during proper operation is additionally assisted by the fact that the laundry drum is moved and the peripheral speed of the laundry drum is greater than 1.1 m / s. The operation of the laundry drum takes place at intervals in changing directions of rotation and / or the duration of Drive control is more than 65% in the washing and / or rinsing program sections. Thus, the water in the washing machine is effectively kept in motion and the auxiliaries are removed from the components.

Das Selbstreinigungsprogramm verbraucht bei der Verwendung der vorstehend beschriebenen Parameter weniger Wasser, Reinigungsmittel und Energie als bisher bei der üblichen Verwendung eines bestimmungsgemäßen Programms des Haushaltreinigungsgerätes.When using the parameters described above, the self-cleaning program consumes less water, cleaning agent and energy than hitherto with the customary use of a designated program of the household cleaning appliance.

Zur Durchführung der Selbstreinigung besitzt das erfindungsgemäße wasserführende Haushaltreinigungsgerät eine Programmsteuereinrichtung, die Steuersignale für eine Wasserzu- und Ablauflaufeinrichtung, eine Heizungseinrichtung und/oder eine Antriebseinrichtung derart generiert, dass der Wasserzulauf, der Ablauf, der Wasserstand, die Temperatur, die Antriebsdrehzahl und/oder die Dauer der Antriebsansteuerung innerhalb mindestens eines Programmabschnittes und/oder die Dauer mindestens eines Programmabschnittes variierbar sind. Diese erfindungsgemäße Gestaltung eines wasserführenden Haushaltreinigungsgerätes eignet sich besonders gut für die Ausstattung einer Waschmaschine mit einem Selbstrenigungsprogramm.To carry out the self-cleaning, the inventive water-conducting household cleaning device has a program control device that generates control signals for a water inlet and outlet device, a heating device and / or a drive device such that the water inlet, the drain, the water level, the temperature, the drive speed and / or the Duration of the drive control within at least one program section and / or the duration of at least one program section are variable. This inventive design of a water-conducting household cleaning appliance is particularly well suited for equipping a washing machine with a self-leveling program.

Nachfolgend werden die Erfindung und deren vorteilhaften Weiterbildungen an Hand eines Ausführungsbeispiels für eine Waschmaschine näher erläutert.The invention and its advantageous developments with reference to an embodiment of a washing machine will be explained in more detail.

Bei der Herstellung und Fertigung von Waschmaschinen werden Hilfsstoffe, wie beispielsweise ölhaltige Gleitmittel, verwendet. Die am Ende des Fertigungsprozesses einer jeden Waschmaschine durchgeführte Geräteprüfung enthält eine Funktions- und Sicherheitsüberprüfung der Waschmaschine. Diese Geräteprüfung ist in Bezug auf Dauer und Intensität nicht ausreichend, um alle Hilfsstoffe von den während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteilen vollständig zu entfernen. Demgegenüber ist der bestimmungsgemäße Betrieb für die Reinigung und Pflege von Gegenständen, z. B. von Textilien in Waschmaschinen, ausgelegt und für die Selbstreinigung der Waschmaschine unter ökologischen und ökonomischen Gesichtspunkten nur bedingt geeignet.In the manufacture and manufacture of washing machines, auxiliaries, such as oily lubricants, are used. The equipment test performed at the end of the manufacturing process of each washing machine includes a functional and safety check of the washing machine. This device test is not sufficient in terms of duration and intensity to completely remove all adjuvants from the components that come in contact with water during proper operation. In contrast, the intended operation for the cleaning and care of objects, such. B. of textiles in washing machines, designed and suitable for the self-cleaning of the washing machine from an ecological and economic point of view only to a limited extent.

Moderne Waschmaschinen besitzen eine Programmsteuereinrichtung, die unter anderem eine Wasserzu- und Ablaufeinrichtung, eine Heizungseinrichtung und eine Antriebseinrichtung steuert. Die Dauer eines Programmabschnittes, der Wasserstand, die Temperatur, die Antriebsdrehzahl und die Dauer der Antriebsansteuerung wird mit dieser Programmsteuereinrichtung gesteuert bzw. geregelt. Bei der Verwendung einer mikrocontrollergestützten Programmsteuereinrichtung mit entsprechenden Speichereinrichtungen kann die Programmgestaltung sehr variabel und preiswert gestaltet sein. Weiter besitzen moderne Waschmaschinen zu-nehmend vielfältigere Möglichkeiten für die Bedienung und die Programmauswahl. Statt bisher üblicher einfacher Programm-Drehwahlschalter werden mehr und mehr menügeführte Displays mit zugeordneten Eingabetasten verwendet. Die Anzahl der angebotenen Programme wird nicht mehr durch die Anzahl von Drehwählerpositionen oder durch die Größe der Speichereinrichtung beschränkt. Somit sind nun auch in einer Programmsteuereinrichtung Sonderprogramme möglich, wie beispielsweise ein Selbstreinigungsprogramm gemäß der Erfindung.Modern washing machines have a program control device which controls, among other things, a water supply and drain device, a heating device and a drive device. The duration of a program section, the water level, the temperature, the drive speed and the duration of the drive control is controlled or regulated with this program control device. When using a microcontroller-based program control device with corresponding memory devices, the program design can be made very variable and inexpensive. Furthermore, modern washing machines have increasingly diverse possibilities for operation and program selection. Instead of previously usual simple program rotary selector switch more and more menu-driven displays are used with associated input keys. The number of programs offered is no longer limited by the number of selector positions or by the size of the memory device. Thus special programs are now also possible in a program control device, such as a self-cleaning program according to the invention.

Die Programmsteuereinrichtung besitzt im allgemeinen einen Mikrokontroller mit flüchtigen (RAM) und nicht flüchtigen (ROM bzw. EEPROM) Speichereinrichtungen, die sowohl statisch als auch wiederbeschreibbar sein können. Die nicht flüchtigen Speichereinrichtungen haben nach einem Ausschalten der Waschmaschine den gleichen Informationsinhalt wie vor dem Ausschalten. Die Programmsteuereinrichtung ist so ausgeführt, dass das jeweils letzte vollständig ausgeführte Programm der Waschmaschine, beispielsweise das Durchführen der Geräteprüfung nach der Fertigung, in einer wiederbeschreibbaren nicht flüchtigen Speichereinrichtung ("letztes Programm") vermerkt wird. Nach einem Einschalten der Waschmaschine, das durch die Programmsteuereinrichtung erkannt wird (beispielsweise durch eine sogenannte "Power On" - Detektierung), überprüft die Programmsteuereinrichtung den Speichereintrag "letztes Programm". Nur bei dem erstmaligen Einschalten erkennt die Programmsteuereinrichtung als "letztes Programm" den Eintrag "Geräteprüfung nach der Fertigung" und bewirkt daraufhin eine Aufforderung beispielsweise auf dem Display einer Bedienblende: "Bitte führen Sie die Selbstreinigung der Waschmaschine durch. Um das Programm zu beginnen, drücken Sie START, sonst ABBRECHEN". Daran anschließend können weitere Hinweise ausgegeben werden, wie beispielsweise die Aufforderung, Waschmittel in die entsprechende Vorrichtung zu geben, oder die Angabe einer empfohlenen Waschmittelmenge. Falls der Bediener der Waschmaschine die Aufforderung mit "Abbrechen" quittiert, bewirkt die Programmsteuereinrichtung die Anzeige des bestimmungsgemäßen Programmangebots der Waschmaschine auf dem Display der Bedienblende, und der Bediener kann ein anderes Programm als die Selbstreinigung auswählen.The program controller generally has a microcontroller with volatile (RAM) and non-volatile (ROM or EEPROM) memory devices, which may be both static and rewritable. The non-volatile memory devices have the same information content after switching off the washing machine as before switching off. The program control device is designed such that the respectively last completely executed program of the washing machine, for example the carrying out of the after-production device test, is recorded in a rewritable non-volatile memory device ("last program"). After switching on the washing machine, which is detected by the program control device (for example, by a so-called "power on" - detection), the program control device checks the memory entry "last program". Only when the device is switched on for the first time does the program control device recognize the entry "device test after production" as the "last program" and then causes a request, for example on the display of a control panel: "Please execute the self-cleaning of the washing machine You START, otherwise CANCEL ". Subsequently, further instructions can be issued, such as the request to give detergent in the appropriate device, or the indication of a recommended amount of detergent. If the operator of the washing machine acknowledges the request with "Cancel", the program control device causes the display of the intended program offer the washing machine the display of the control panel, and the operator can select a program other than self-cleaning.

Nach der Durchführung der Selbstreinigung oder eines anderen Programms wird der entsprechende Programmname bzw. -code durch die Programmsteuereinrichtung in der Speichereinrichtung als "letztes Programm" eingetragen. Dadurch wird gewährleistet, dass nach einem erneuten Einschalten der Waschmaschine kein erneuter Hinweis auf die Selbstreinigung bewirkt wird. Dies geschieht auch dann, wenn als letztes gespeichertes Programm der Name irgendeines ordnungsgemäßen Arbeitsprogramms hinterlegt ist, z. B. "Buntwäsche 60 °C".After carrying out the self-cleaning or another program, the corresponding program name or code is entered by the program control device in the memory device as a "last program". This ensures that no renewed reference to the self-cleaning is effected after restarting the washing machine. This happens even if the last saved program is the name of any proper work program, eg. B. "Coloreds 60 ° C".

Damit eine Selbstreinigung auch unabhängig von der Erst-Inbetriebnahme der Waschmaschine durch den Bediener ausgewählt werden kann, wird die Selbstreinigung als ein weiteres Programm bzw. Sonderprogramm zu den bestimmungsgemäßen Programmen der Waschmaschine angeboten. Dies kann beispielsweise zur Reinigung der Maschine von Hunde- oder Katzenhaaren gewünscht sein.So that a self-cleaning can be selected independently of the initial start-up of the washing machine by the operator, the self-cleaning is offered as another program or special program to the intended programs of the washing machine. This may be desired, for example, for cleaning the machine of dog or cat hair.

Der Programmstart des Selbstreinigungsprogramms bewirkt einen Programmablauf für das Reinigen der während des ordnungsgemäßen Betriebs mit Wasser in Berührung kommenden Bauteile. Der Ablauf besteht aus den Abschnitten "Waschen" und "Spülen". In dem ersten Programmabschnitt Waschen bewirkt die Programmsteuereinrichtung die Ansteuerung der Wasserzulaufeinrichtung und überwacht zugleich den Wasserstand. Da Waschmaschinen im Allgemeinen mehrere Wasserzulaufwege enthalten, werden alle Zulaufeinrichtungen nacheinander angesteuert, so dass alle Wasserzulaufwege benetzt werden. Die Ansteuerung des gesamten Wasserzulaufes erfolgt, bis der Wasserstand eine Höhe erreicht hat, bei dem die Wäschetrommel gerade mit dem Wasser in Berührung kommt und die Heizeinrichtung ausreichend mit Wasser bedeckt ist. Während des Wasserzulaufes wird die Wäschetrommel bewegt, damit dabei bereits möglichst viele Bauteile mit Wasser in Berührung kommen. Daraufhin wird das Wasser auf eine Temperatur von ca. 90 °C aufgeheizt und die Wäschetrommel wird weiterhin bewegt. Dazu wird die Wäschetrommel mit wechselnden Drehrichtungen betrieben und das Verhältnis der Ansteuer- zur Programmabschnittsdauer des Antriebes ist größer als 65%, beispielsweise 70%.The program start of the self-cleaning program brings about a program sequence for cleaning the components that come into contact with water during proper operation. The procedure consists of the sections "Washing" and "Rinsing". In the first program section washing the program control device causes the activation of the water inlet device and at the same time monitors the water level. Since washing machines generally contain a plurality of water supply paths, all the feed devices are controlled in succession, so that all water supply paths are wetted. The control of the entire water supply takes place until the water level has reached a level at which the laundry drum just comes into contact with the water and the heater is sufficiently covered with water. During the water supply, the laundry drum is moved so that as many components as possible come into contact with water. Then the water is heated to a temperature of about 90 ° C and the laundry drum is still moving. For this purpose, the laundry drum is operated with alternating directions of rotation and the ratio of the drive to the program section duration of the drive is greater than 65%, for example 70%.

Die Drehbewegung der Wäschetrommel erfolgt mit einer Umfangsgeschwindigkeit von mehr als 1,1 m/s. Besonders vorteilhaft hat sich ergeben, dass die Drehzahl der Wäschetrommel ca. 60 1/min beträgt; somit ergibt sich bei einem Trommeldurchmesser von ca. 470 mm eine Umfangsgeschwindigkeit von ca. 1,5 m/s. Bei dieser Trommeldrehzahl werden auch die Wäschetrommel und der Laugenbehälter gut mit Wasser in Berührung gebracht.The rotary movement of the laundry drum takes place at a circumferential speed of more than 1.1 m / s. Particularly advantageous has been found that the speed of the laundry drum is about 60 1 / min; thus results in a drum diameter of about 470 mm, a peripheral speed of about 1.5 m / s. At this drum speed are Also, the laundry drum and the tub brought in contact with water well.

Die Selbstreinigung wird noch durch zugegebenes Reinigungsmittel unterstützt. Dazu ist gegenüber einer Reinigung von Textilen ein verminderter Einsatz an Reinigungsmitteln nötig. Die benötigte Menge an Waschmittel ergibt sich aus der geringeren, für die Selbstreinigung benötigten Wassermenge und der für den Reinigungsprozess erforderlichen Laugenkonzentration. Es hat sich herausgestellt, dass die Dauer des Programmabschnittes "Waschen" auf 20 min beschränkt werden kann, um eine ausreichende Selbstreinigung sicherzustellen. Die Programmsteuereinrichtung bewirkt am Ende des Programmabschnittes "Waschen" eine Ansteuerung der Ablaufeinrichtung, bis die Waschmaschine vollständig entleert ist. Durch das warme Wasser bzw. die warme Lauge werden in dieser Phase auch die Abwasserwege gereinigt.The self-cleaning is still supported by added detergent. This is compared to a cleaning of textiles a reduced use of cleaning agents needed. The required amount of detergent results from the lower amount of water required for self-cleaning and the alkali concentration required for the cleaning process. It has been found that the duration of the program section "washing" can be limited to 20 minutes to ensure sufficient self-cleaning. The program control device causes at the end of the program section "washing" a control of the drain device until the washing machine is completely emptied. Due to the warm water or the warm lye, the sewage ways are cleaned in this phase.

An den Programmabschnitt "Waschen" schließt sich der Abschnitt "Spülen" an, der wieder aus den Schritten Wasserzulauf, Bewegung der Wäschetrommel mit wechselnden Drehrichtungen und dem Entleeren der Waschmaschine besteht. Beim Spülen ist der Wasserstand wieder nur so hoch, dass die Wäschetrommel gerade ins Wasser eintaucht. Das Spülen dient vor allem dazu, Reste des Reinigungsmittels bzw. der Lauge und/oder entstandenen Schaum zu beseitigen. Für die Selbstreinigung wird nur ein Spülablauf mit einer Dauer von ca. 5 Minuten benötigt, und während des Spülens wird das Wasser nicht zusätzlich erwärmt. Während des letzten Schrittes, dem Entleeren der Waschmaschine, wird der Antrieb nicht angesteuert. Auf das Abschleudern von Wasser kann verzichtet werden, da sich keine Textilen mit gebundenem Wasser in der Wäschetrommel befinden. Durch das vorstehend beschriebene Verfahren und mittels des wasserführenden Haushaltreinigungsgerätes, insbesondere einer Waschmaschine, das Mittel zur Durchführung dieses Verfahrens hat, wird der Bediener bei der Erst-Inbetriebnahme der Waschmaschine zwangsläufig darauf hingewiesen, eine Selbstreinigung der Waschmaschine vor einer bestimmungsgemäßen Benutzung durchzuführen. Weiterführend erfolgt die Selbstreinigung gemäß dem Verfahren innerhalb einer kurzen Dauer unter Verwendung von wenig Wasser, Reinigungsmittel und Energie.The "Washing" section of the program is followed by the "Rinse" section, which again consists of the steps of water supply, movement of the laundry drum with alternating directions of rotation and the emptying of the washing machine. When rinsing the water level is again only so high that the laundry drum is just immersed in the water. The rinsing serves primarily to eliminate residues of the cleaning agent or the lye and / or resulting foam. For self-cleaning only a rinsing process with a duration of about 5 minutes is needed, and during rinsing, the water is not additionally heated. During the last step, the emptying of the washing machine, the drive is not activated. The throwing off of water can be dispensed with since there are no textiles with bound water in the laundry drum. By the method described above and by means of the water-conducting household cleaning appliance, in particular a washing machine, which has means for performing this method, the operator is inevitably advised during initial commissioning of the washing machine to perform a self-cleaning of the washing machine before use as intended. Further, the self-cleaning according to the method is carried out within a short time using little water, detergent and energy.

Die Erfindung ist nicht auf das Ausführungsbeispiel beschränkt. Beispielsweise kann das erfindungsgemäße Selbstreinigungsprogramm auch bei einer Geschirrspülmaschine angewendet werden. Verwendete Merkmale der Waschmaschine sind sinngemäß auf die Merkmale der Geschirrspülmaschine übertragbar. Beispielweise kann der Antrieb einer Waschmaschine auch sinngemäß als eine Umwälzpumpe der Geschirrspülmaschine verstanden werden. Die bewegte Wäschetrommel der Waschmaschine kann im Falle der Geschirrspülmaschine als mindestens ein bewegter Sprüharm verstanden werden, wobei die jeweiligen vorteilhaften Umfangsgeschwindigkeiten der entsprechenden Bauteile sich unterscheiden werden.The invention is not limited to the embodiment. For example, the self-cleaning program according to the invention can also be applied to a dishwasher. Used features of the washing machine are mutatis mutandis to the characteristics of the dishwasher transferable. For example, the drive of a washing machine can also be understood analogously as a circulation pump of the dishwasher become. In the case of the dishwasher, the moving washing drum of the washing machine can be understood as at least one moving spray arm, the respective advantageous peripheral speeds of the corresponding components being different.

Claims (11)

  1. Method for controlling a program controlled water-conducting domestic cleaning appliance, in the form of a washing machine or a dishwasher, with a program control device which controls a water inflow device and an outflow device, a heating device and/or a drive device and which further controls the duration of a program segment, the water level, the temperature, the drive rotational speed and/or the duration of the drive activation, comprising a self-cleaning program, which is a program for cleaning the components coming into contact with water during normal operation and in which the program control device so controls the water inflow, the outflow, the water level, the drive rotational speed and/or the duration of the drive activation within at least one program segment and/or the duration of at least one program segment that all these components coming into contact with water during normal operation are wetted in this program segment, characterised in that the program control device recognises switching-on of the domestic cleaning appliance and the respective last completely executed program of the domestic cleaning appliance and subsequent thereto issues a demand for performance of the self-cleaning program, wherein the demand is issued only when an appliance check after production is recorded as the last program.
  2. Method according to claim 1, characterised in that the self-cleaning program is additionally provided by a user-selectable program of the domestic cleaning appliance.
  3. Method according to claim 1 or 2, characterised in that the program control device causes output of at least one demand for an operating action and/or of informatory notifications.
  4. Method according to claim 3, characterised in that the program control device causes issue of a notification with respect to the required dosing of cleaning agent.
  5. Method according to any one of the preceding claims, characterised in that the self-cleaning program is performed only after switching-on of the domestic cleaning appliance for the first time.
  6. Method according to any one of the preceding claims, characterised in that the cleaning of all components coming into contact with water during normal operation takes place with such a low water level that these components are only just wetted.
  7. Method according to any one of the preceding claims in a washing machine, characterised in that the temperature in a program segment of washing is approximately 90° C.
  8. Method according to claim 7, characterised in that the drive rotational speed for a laundry drum in program segments of washing and rinsing is so selected that the circumferential speed of the laundry drum is greater than 1.1 m/s.
  9. Method according to one of claims 7 and 8, characterised in that in the program segments of washing and rinsing the laundry drum is operated in alternating directions of rotation and/or the duration of the drive activation is greater than 65%.
  10. Method according to any one of claims 7 to 9, characterised in that the washing machine is emptied in the last program segment and in that case the drive is not activated.
  11. Water-conducting domestic appliance, in the form of a washing machine or a dishwasher, for performing the method according to any one of claims 1 to 10, with a water inflow device, an outflow device, a heating device, a drive device and a program control device, by which control signals for the water inflow device and outflow device, the heating device and/or the drive device can be generated in such a manner that the water inflow, the outflow, the water level, the temperature, the drive rotational speed and/or the duration of the drive activation are variable within at least one program segment and/or the duration of at least one program segment is variable, characterised in that
    - the program control device includes a non-volatile rewritable memory in which the respective last completely executed program of the domestic cleaning appliance is recorded,
    - the program control device comprises means for recognising switching-on of the domestic cleaning appliance, means for checking registration of the memory and means for issue of a demand for performance of the self-cleaning program according to claim 1,
    - wherein the program control device is constructed for recognising switching-on of the domestic cleaning appliance for the first time after production of the appliance and is so arranged that the demand for performance of the self-cleaning program is issued only when an appliance check after production is recorded as the last program.
EP04739761A 2003-06-23 2004-06-09 Method for cleaning water-bearing domestic cleaning appliances and water-bearing domestic cleaning appliance Expired - Lifetime EP1639177B1 (en)

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PL04739761T PL1639177T3 (en) 2003-06-23 2004-06-09 Method for cleaning water-bearing domestic cleaning appliances and water-bearing domestic cleaning appliance

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DE10328071.5A DE10328071B4 (en) 2003-06-23 2003-06-23 Process for cleaning water-carrying household cleaning appliances
PCT/EP2004/006257 WO2005001189A1 (en) 2003-06-23 2004-06-09 Method for cleaning water-bearing domestic cleaning appliances

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EP1639177B1 true EP1639177B1 (en) 2013-02-20

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PL1639177T3 (en) 2013-08-30
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WO2005001189A1 (en) 2005-01-06
DE10328071B4 (en) 2019-01-31
US20070094811A1 (en) 2007-05-03

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