EP0031016B1 - Procédé pour laver le linge - Google Patents

Procédé pour laver le linge Download PDF

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Publication number
EP0031016B1
EP0031016B1 EP80106860A EP80106860A EP0031016B1 EP 0031016 B1 EP0031016 B1 EP 0031016B1 EP 80106860 A EP80106860 A EP 80106860A EP 80106860 A EP80106860 A EP 80106860A EP 0031016 B1 EP0031016 B1 EP 0031016B1
Authority
EP
European Patent Office
Prior art keywords
washing
time
program
washing machine
service water
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
Application number
EP80106860A
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German (de)
English (en)
Other versions
EP0031016A1 (fr
EP0031016B2 (fr
Inventor
Lieselotte Brodzina
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH
Original Assignee
Individual
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Publication date
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Application filed by Individual filed Critical Individual
Publication of EP0031016A1 publication Critical patent/EP0031016A1/fr
Publication of EP0031016B1 publication Critical patent/EP0031016B1/fr
Application granted granted Critical
Publication of EP0031016B2 publication Critical patent/EP0031016B2/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
    • 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
    • D06F2105/02—Water supply
    • D06F2105/04—Water supply from separate hot and cold water inlets
    • 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
    • D06F2105/56—Remaining operation time; Remaining operational 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08—Control circuits or arrangements thereof

Definitions

  • the invention relates to a method for washing laundry in a program-controlled drum washing machine, which is provided with connections for cold and hot domestic water of a household.
  • Drum washing machines with connections for cold and warm fresh water are known (DE-C-853 151).
  • the washing processes taking place do not differ from washing processes that are used in drum washing machines that are only equipped with a cold water connection.
  • the laundry care specialist is required to set up a program section for washing normally soiled laundry, in which only fresh or only warm fresh water is used instead of cold so that the total washing time during this program section is approximately as long as for a corresponding program section with only cold fresh water.
  • this specialist will compensate for the time lost here by extending the active washing time, which counts from the time the washing temperature is reached to the end of the program section, so that the time factor is not neglected and leads to a disruption of the leads the optimum described by Sinner's circle.
  • the invention has for its object to develop a washing process mentioned at the outset which further increases the energy-saving effect which can be achieved by a shortened heating phase and which leads to a shortening of the overall duration of a washing program.
  • the results regarding cleaning effect, bleaching intensity and gentle washing should be achieved, if not exceeded, as far as possible compared to those program sections in which only cold fresh water runs in.
  • this object is achieved in that, in the case of a program section for normally soiled laundry in which hot domestic water is flowing in, in comparison to such a program section in which only cold domestic water is running in, the active washing time after reaching the desired washing temperature of the alkali is only approx. 0 is up to 40%.
  • the heating-up time is approximately 40 minutes when the washing machine is fully loaded. This is usually followed by an active washing time of 20 minutes.
  • the total time of this program section is therefore approx. 1 hour.
  • the person skilled in the art would also adhere to this total time for a program section in which hot domestic water is supplied, that is to say which is initiated at a higher starting temperature of approximately 50.degree.
  • the heating-up time for this example is only about 20 minutes.
  • the active washing time is shortened using the method according to the invention. For example, it is now only 0 to 8 minutes (corresponding to 0 to 40% of usually 20 minutes). The total time is now only 25 minutes: a reduction of almost 60%. During this short time, less heat is of course lost through radiation and transition to the environment, so that another energy saving effect can be seen.
  • the loss of mechanical action on the laundry in the program section in which warm process water flows in, as a result of a shorter washing time compared to such a program section in which only cold process water runs in, can be at least partially compensated for in an advantageous development of the method according to the invention by intensifying the rhythm of movement. This means that the results regarding cleaning effectiveness and bleaching intensity can be adapted to the respective requirements.
  • the method according to the invention can be carried out in a drum washing machine which, according to one embodiment of the invention, contains a program control device with a switching stage which, when the desired washing temperature is reached, emits an output signal to the set input of a time control stage for the active washing process, the one of which has a timing signal output with a step forward of the program control unit is connected.
  • the switching stage can be activated by a step-up device and, when the desired washing temperature is reached, starts a timing stage, the output of which changes when the signal changes after a certain time, e.g. 4 min, the activity of this switching stage ends for the active washing process.
  • the program control device contains a further switching stage, which on the output side is connected to a changeover input of a clock generator for the movement rhythm. must be switchable when the hot water supply has ended and the desired washing temperature has been reached.
  • an intensive movement rhythm e.g. 12 s run and 3 s pause can be selected, which, when the hot water supply has ended and the washing temperature has been reached, is based on a normal movement rhythm, e.g. 7.5 s run and 7.5 s pause.
  • the program control unit can furthermore contain a switching stage which is connected to a switch for a magnetic valve controlling the flow of the hot domestic water or a further switching stage which is connected to a switch for a heating device which heats the washing liquor.
  • a switching stage which is connected to a switch for a magnetic valve controlling the flow of the hot domestic water
  • a further switching stage which is connected to a switch for a heating device which heats the washing liquor.
  • the unfilled diagram line in FIG. 1 shows from 0 to 40 minutes, calculated from the beginning of the program section intended for a rinse cycle, the heating phase in a program section in which only cold process water that has an initial temperature of 15 ° C. is supplied. After the continuous heating process has ended, the wash liquor has a temperature of 90 ° C as a prerequisite. This is followed by a 20-minute active washing time, so that this section of the program ends after a total of 60 minutes and ends with the gradual inflow of cold water and cooling of the washing liquor.
  • the filled diagram line shows the time course of the temperature in the washing method according to the invention in the program section for normally soiled laundry, in which warm process water flows in.
  • the heating phase begins, the course of which is essentially parallel to the course of heating up cold water.
  • the heating-up phase has ended and a washing temperature of 90 ° C has been reached. This is followed by an active washing time of around 15 minutes, so that after a total washing time of 25 minutes within this program section, the clear wash cycle ends.
  • FIG. 2 shows a part of a block diagram for a program control device provided according to the invention in an automatically operating drum washing machine, which controls the washing process according to the invention. It contains switching stages 1, 2 and 3, which can activate switching stages 11, 12 and 13 one after the other. The output of the switching stage 11 controls the flip-flop 21 in a position in which it switches on the solenoid valve 30 connected to its output 210. This solenoid valve controls the hot water flow in line 31.
  • the switching stage 12 controls the bistable flip-flop 22 in a position in which its output 220 switches on the contactor 40 for the caustic heater 41.
  • the inflow line 31 opens into the tub 50. Furthermore, a water level sensor 51 and a temperature sensor 52 are arranged in the tub, the switches 53 and 54 of which emit suitable signals to the switching stage 13.
  • the switching stage 13 outputs its output signal to the set input of a timing stage 23, one output of which is connected to the sliding input of the advance stages 1 to 3.
  • the output signal of the switching stage 13 is dependent on the signal of the switches 53 and 54.
  • the switch 53 is also connected to the reset input of the bistable multivibrator 21, which switches off the solenoid valve 30 again when the switch is reset.
  • the switch 54 is also connected to the reset input of the bistable multivibrator 22, which switches off the heating contactor 40 when the switch is reset.

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

Claims (7)

1. Procédé de lavage de linge dans une machine à laver à tambour à commande par programme, qui est pourvue de raccords respectifs pour les canalisations d'eau de consommation froide et chaude, d'une installation domestique, caractérisé par le fait que dans une section de programme pour un linge normalement sali, dans lequel se produit une admission d'eau de consommation chaude, le temps de lavage actif s'élève, une fois atteinte la température de lavage désirée pour le bain de lessive, seulement à environ 0 à 40% de celui d'une section de programme dans laquelle se produit uniquement une admission d'eau de consommation froide.
2. Procédé selon la revendication 1, caractérisé par le fait que la perte d'action mécanique sur le linge dans la section de programme dans laquelle s'effectue une admission d'eau de consommation chaude, en conséquence du temps de lavage plus court par rapport à une section de programme dans laquelle se produit uniquement une admission d'eau de consommation froide, est au moins partiellement compensée par une intensification du rythme de marche.
3. Machine à laver à tambour à fonctionnement automatique pour la mise en oeuvre du procédé selon la revendication 1, caractérisée par le fait que l'appareil de commande par programme (figure 2) renferme un étage de commutation (13) qui, une fois atteinte la température de lavage désirée, délivre un signal de sortie à l'entrée de déclenchement d'un étage de temporisation (23) pour le mode de lavage actif, dont l'une des sorties de signal de fin de temporisation est connectée à un étage d'avancement (1) de l'appareil de commande par programme.
4. Machine à laver à tambour selon la revendication 3 pour la mise en oeuvre du procédé selon la re- vendicatin 2, caractérisée par le fait que l'appareil de commande par programme renferme un autre étage de commutation qui peut être commuté du côté de sa sortie à une entrée de commutation d'un générateur d'impulsions pour le rythme de marche, lorsque l'admission d'eau chaude est terminée et que la température de lavage désirée est atteinte.
5. Machine à laver à tambour selon la revendication 3 ou 4, caractérisée par le fait que que le temps qui s'écoule entre le signal d'enclenchement à l'étage de temporisation (23) et le signal de fin de temporisation dudit étage s'élève au maximum à 4 minutes.
6. Machine à laver à tambour selon l'une quelconque des revendicatins 3 à 5, caractérisée par le fait que l'un des étages (11) de commutation de l'appareil de commande par programme est connecté à un interrupteur (21) pour une électro-vanne (30) commandant l'admission de l'eau de consommation chaude.
7. Machine à laver à tambour selon l'une quelconque des revendications 3 à 6, caractérisée par le fait que l'un des étages de commutation (12) de l'appareil de commande du programme est connecté à un interrupteur (22) pour un dispositif de chauffage (41) chauffant le bain de lessive.
EP80106860A 1979-12-21 1980-11-07 Procédé pour laver le linge Expired EP0031016B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792951926 DE2951926A1 (de) 1979-12-21 1979-12-21 Verfahren zum waschen von waesche und automatisch arbeitende trommelwaschmaschine
DE2951926 1979-12-21

Publications (3)

Publication Number Publication Date
EP0031016A1 EP0031016A1 (fr) 1981-07-01
EP0031016B1 true EP0031016B1 (fr) 1984-04-18
EP0031016B2 EP0031016B2 (fr) 1989-10-18

Family

ID=6089359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106860A Expired EP0031016B2 (fr) 1979-12-21 1980-11-07 Procédé pour laver le linge

Country Status (2)

Country Link
EP (1) EP0031016B2 (fr)
DE (2) DE2951926A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030656C2 (de) * 1980-08-13 1985-08-08 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Verfahren zum Variieren eines von Hand einstellbaren Programmablaufes einer automatisch arbeitenden Waschmaschine und Waschmaschine zum Durchführen des Verfahrens
NZ207319A (en) * 1984-02-29 1988-02-12 Fisher & Paykel Clothes washing machine, control of spin cycle and of washing during water entry
KR101085494B1 (ko) * 2006-06-19 2011-11-23 삼성전자주식회사 세탁기 및 그 세탁제어방법
DE102008054931B4 (de) * 2008-12-18 2012-03-08 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Steuern einer Haushaltswaschmaschine
DE102010001325A1 (de) * 2010-01-28 2011-08-18 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Waschmaschine mit Warmwasseranschluss und Verfahren zu ihrem Betrieb
CN102995353B (zh) * 2012-12-04 2015-07-01 无锡小天鹅股份有限公司 一种洗衣机的控制方法及洗衣机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB675115A (en) * 1949-09-24 1952-07-02 Fisher & Ludlow Ltd Improvements in or relating to washing machines
FR1046617A (fr) * 1950-06-12 1953-12-08 Hoover Ltd Machine à laver pour l'usage domestique
DE919883C (de) * 1951-05-20 1955-09-05 Heinrich Oelkers Waschverfahren fuer Textiwaren, insbesondere Waesche
US2949759A (en) * 1957-06-27 1960-08-23 Gen Motors Corp Domestic appliance
AT270550B (de) * 1963-10-29 1969-04-25 Zanussi A Spa Industrie Einlaugenverfahren zum Waschen von Wäsche
DE2730865B2 (de) * 1977-07-08 1980-09-18 G. Bauknecht Gmbh, 7000 Stuttgart Verfahren zum programmgesteuerten Hauptwaschen bzw. Hauptspülen

Also Published As

Publication number Publication date
EP0031016A1 (fr) 1981-07-01
DE3067571D1 (en) 1984-05-24
EP0031016B2 (fr) 1989-10-18
DE2951926A1 (de) 1981-07-02
DE2951926C2 (fr) 1988-07-07

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