EP2049723B1 - Détermination de la capacité d'accumulation d'eau de textiles dans un lave-linge et lave-linge correspondant - Google Patents

Détermination de la capacité d'accumulation d'eau de textiles dans un lave-linge et lave-linge correspondant Download PDF

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Publication number
EP2049723B1
EP2049723B1 EP07730068A EP07730068A EP2049723B1 EP 2049723 B1 EP2049723 B1 EP 2049723B1 EP 07730068 A EP07730068 A EP 07730068A EP 07730068 A EP07730068 A EP 07730068A EP 2049723 B1 EP2049723 B1 EP 2049723B1
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Prior art keywords
textiles
phase
rinsing
water
storage capacity
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EP07730068A
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German (de)
English (en)
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EP2049723A1 (fr
Inventor
Gundula Czyzewski
Ingo Schulze
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed

Definitions

  • the invention relates to a method for determining the water storage capacity of textiles in a washing machine, which is equipped with means for driving a laundry drum rotatably mounted in a tub and for controlling a wetting phase and a rinsing phase of a washing process, wherein the rinsing phase has at least one rinsing sequence, the one Dehumidification sequence follows.
  • the invention also relates to a washing machine comprising a control device which is set up for determining the water storage capacity of textiles and for controlling a wetting phase and a rinsing phase of a washing process, wherein the rinsing phase has at least one rinsing sequence following a dehumidifying sequence, and comprising a lye container, one in the tub rotatably mounted laundry drum for receiving the textiles and means for driving the laundry drum.
  • Textiles differ greatly in their water storage capacity, for example, depending on the type of textile fiber, the textile fabric obtained from it, the packaging and not least the textile equipment.
  • Unfitted vegetable or animal natural fiber textiles can absorb up to several times their own weight in water and can be found in the fiber structures - eg. B. in fiber spaces and capillaries - store. The absorbed water leads u.a. to a swelling of the fibers.
  • textiles may be rendered hydrophobic (water repellent, e.g., by impregnation) or hydrophilic (water-loving) via the surface finish.
  • EP-A1-0787848 discloses a method for determining the water-repellency of textiles in a washing machine, wherein a water uptake of the textiles in the wetting phase is measured.
  • the different phases of a cleaning process are based on the preset program and the parameters measured directly in the respective phase.
  • the spin phase for example, parameters such as load quantity (drum runtime measurement), imbalance, etc. measured and introduced into the phase control.
  • load quantity drum runtime measurement
  • imbalance etc. measured and introduced into the phase control.
  • the spinning process is aimed at the maximum water storage capacity (long time, high system load), although many textiles could be dehumidified much faster. This alignment with the maximum water storage capacity also applies to the rinsing phase. Since the exchange of water is difficult for textiles with high water retention capacity during rinsing, because of the assumption of a maximum water retention capacity is often rinsed more intensive and dehumidified than necessary.
  • a method and a washing machine of the type defined above are specified.
  • the invention consists in first measuring a water absorption of textiles in the wetting phase, to the beginning of which they are still dry. Thereafter, in at least one rinsing sequence of the rinsing phase, a water absorption of the textiles previously subjected to a dehumidifying phase but still remaining wet is measured. Following this, the measurements from both phases are compared. As for textiles with high water storage capacity (eg due to high retention capacity and / or high tendency to swell) significant differences in water absorption behavior compared to textiles with low water storage capacity result, the water storage capacity can be determined based on the comparison.
  • the particular water storage capacity can be included in the following cleaning sections, especially rinsing and spin sequences for control.
  • the water storage capacity can also be used to control their existing dry phase. Due to the frequently reduced requirement in the individual phases (rinsing time, spin speed, etc.), textiles, in particular with a low water absorption, can be treated more gently. For example, textiles with low water absorption need not be rinsed for so long to remove detergent residues. Also often does not need to be so intense and / or long to be spun or dried. In addition, water and electricity can be saved. Also, the load on the washing machine decreases, which increases its service life.
  • From the water storage capacity can be closed, especially in temporally resolved measurement, basically on the type of textile, z.
  • hydrophobic or hydrophilic character the nature of the textile fiber, the fabric obtained therefrom and the packaging / or the textile equipment.
  • the individual phases can also be controlled depending on the type of textile.
  • the water absorption of the textiles is conveniently measured by determining the liquor volume necessary to reach a certain level of the liquor in the tub (level-based filling).
  • the level can by conventional means such as a water level or pressure measurement by accordingly arranged sensors are determined.
  • more liquor supplied will generally be needed to reach the same level than textiles with low water absorption capacity. This measurement can also be resolved in time.
  • the water uptake can be measured by measuring the liquor level after filling with a certain volume of liquor, this also temporally resolved if necessary.
  • the invention also includes a method for rinsing textiles, which is based on the above-described method for determining the water storage capacity, wherein additionally at least one rinsing sequence following the rinsing sequence used for measuring the water absorption is set as a function of the water storage capacity or the textile type.
  • the frame time of the following rinsing sequences is reduced compared to textiles with high water retention capacity, since the lower water retention allows easier water exchange.
  • the following dehumidifying sequences can then be conveniently set depending on the water storage capacity, in particular so that the frame time and / or speed of the subsequent Eisenentfeuchtungssequenz is increased in textiles with a high water storage capacity compared to textiles with low water storage capacity.
  • the invention further comprises a method for spinning textiles, wherein the above-described method for determining the water storage capacity is performed prior to a spin phase for spinning the textiles, and further the spin phase is adjusted depending on the water storage capacity.
  • the spin frame time and / or the final spin speed can be increased in comparison with textiles with low water retention capacity in order to ensure the desired degree of dehumidification.
  • a washing machine for selectively carrying out the above-mentioned method, which is equipped with a suitable, in particular electronic, for example, programmed control unit, in which advantageously an expert system is implemented.
  • a suitable, in particular electronic, for example, programmed control unit in which advantageously an expert system is implemented.
  • an expert system for example, typical water absorption parameters (temporally resolved if necessary) for various types of textile can be stored, from which the type of textile is deduced during operation by comparison with the measured values.
  • the tub 1 in Fig. 1 contains a stored therein about a horizontal axis 3 washing drum 2 with carriers 4 for existing laundry textiles 7.
  • the driver 4 have scooping devices with which located below in the tub 1 lye 6 during rotation of the laundry drum 2 in the direction of arrow 16 from a level Nv , which is above the lowest point of the laundry drum 2, scooped up, raised to a level above the laundry 7 and can be rained from the top of the laundry 7. As a result, the wetting and flooding of the laundry 7 is accelerated.
  • an electric motor 14 To rotate the laundry drum 2 is an electric motor 14, which initiates its rotational movement via a belt transmission in the laundry drum 2.
  • a heater 13 which serves to heat the liquor.
  • This liquor 6 passes by operating one of the solenoid valves 8 or 9 in the tub 1 and consists either only of water or a mixture of water and detergent.
  • In the Waschstoffein réelle Spur 11 two chambers 111 and 112 are shown, which are each traversed by the opening of the associated solenoid valve of fresh water.
  • Auxiliary washing agents, which are located in the chambers are then transferred from the water through the line 10 from the Waschstoffein Kunststofftechnisch vibration in the tub 1.
  • Lye 6, which is located at the bottom of the tub 1, can be transported through the drain line 17 and the pump 18 in a manner not shown here to the outside.
  • All switchable or controllable devices such as the solenoid valves 8 and 9, the heater 13, the drum drive motor 14 and the drain pump 18 are switched or controlled by the controller 12 of the washing machine.
  • a water level sensor 15 For measuring the level of the liquor 6 also serves a water level sensor 15, which passes its measuring signals via the reporting line to an evaluation device 121 in the control device 12.
  • the evaluation device 121 comprises an expert system in which typical water intake parameters (temporally resolved if necessary) are stored. By comparing the values measured during operation with the stored values, it is possible, for example, to deduce the type of textile.
  • a comparison possibility consists in comparing the difference curve of the water level between wetting phase and rinsing sequence with a stored curve. In a further comparison possibility, only individual values are compared, such as the liquor volume after reaching a certain level N v .
  • Other types of evaluations or expert systems may be used, e.g. B. including fuzzy logic.
  • the in Fig. 1 illustrated washing machine for example, operated as it is in the Fig. 2 to 5 is shown.
  • the scale on the ordinate applies only to the speed of the laundry drum 2; the supplied liquor volume V is assigned no scale.
  • the solenoid valve 8 is first opened in order to fill the tub 1 with the washing agent-filled detergent chamber 111 and the line 10.
  • the water carries the detergent with in the tub 1, where it is distributed. Together they form the wash liquor.
  • the laundry drum 2 according to the fat continuous diagram line n is initially driven only at a low speed (eg 23 rpm).
  • the laundry drum 2 is continuously reversibly driven with, for example, 50 rpm, so that the laundry comes into intensive contact with the wash liquor already heated during the wetting phase PhB.
  • the wash liquor can optionally be pumped off.
  • PhSp contains alternating (intermediate) dehumidification sequences SeqE1, SeqE2, SeqE3 and purge sequences SeqS1, SeqS2, SeqS3.
  • the liquor is pumped out by operating the drain pump and the laundry gently flung for their gentle dehumidification with a low Scheudercraftzal the washing drum, so that contained in the textiles residual liquor is largely pushed out.
  • fresh water is supplied for further dilution of the liquor, in which residues of residual detergent are still bound, for example by an already emptied detergent chamber.
  • the number of rinsing sequences SeqS1, SeqS2, SeqS3 must be set to the required dilution.
  • the fresh water can optionally also be exchanged several times during a flushing sequence SeqS2, SeqS3.
  • the first rinsing sequence SeqS1 during which the water absorption of the textiles is measured by determining the fresh water volume V necessary to achieve the liquor level N v , is similar to the wetting phase PhB. In this way, similar to the measurement of the water absorption capacity in the wetting phase, the water retention capacity of the same laundry item is measured with already wetted laundry.
  • the water absorption measured therein is compared with the water absorption determined from the wetting phase PhB, and from this the water storage capacity or type of textile is determined.
  • the operating parameters speed, purging duration, etc.
  • Spin phase PhSch-N shown for spinning laundry or textiles with low water absorbency comprises a first main spinner block B1-N, in which the spin start in the lower area is slow (waiting / Schleuderplateau SHL), since there are high amounts of water. With average slow spin start-up remains sufficient Time to pump off the resulting spin water fast enough. In the upper area (further increase in the spin speed and upper plateau) can be accelerated accordingly faster. The final spin speed and spin frame time may be reduced compared to spinning high-water textiles.
  • the spin phase PhSch-N in this embodiment comprises an optional further main spin block B2-N, which starts because of the already done removal of water without slow spin-up (SHL). The number and shape of the spin sequences must be set to the required dehumidification.
  • a spin phase PhSch-H shown in to Fig. 4 corresponding proportions is shown.
  • the main spinner block B1-H is over the entire spin start-up - for the same reason as in the block B1-N in Fig. 4 and especially at high water retention capacity - compared to B2-N in the spin phase PhSch-N slowly started up.
  • the absolute spin speeds and spin frame times are still comparatively high compared to B1-N.
  • the main spinner block B1-H is preceded by a pre-dewatering phase BV-H, which has a number of pre-dewatering peaks (spin pulses) at a comparatively low speed.
  • the number and shape of the spin sequences must be set to the required dehumidification; in particular, with high water retention capacity, a plurality of main spin blocks B1-H, B2-H are favorable, the number and shape of which depends on the conditions actually recognized.

Claims (17)

  1. Procédé destiné à déterminer la capacité d'accumulation d'eau de textiles dans un lave-linge qui est équipé de dispositifs (12, 121, 14) destinés à entraîner un tambour à linge (2) logé de manière rotative dans un réservoir à lessive (1) ainsi qu'à commander une phase de mouillage (PhB) et une phase de lavage (PhSp) d'une opération de lavage, une absorption d'eau des textiles étant mesurée pendant la phase de mouillage (PhB), caractérisé en ce que
    a) la phase de lavage (PhSp) présente au moins une séquence de lavage (SeqS1, SeqS2, SeqS3) successive à une séquence de déshumidification (SeqE1, SeqE2, SeqE3),
    b) une absorption d'eau des textiles est mesurée pendant au moins l'une des séquences de lavage (SeqS1, SeqS2, SeqS3),
    c) la mesure de l'absorption d'eau des textiles pendant la phase de mouillage (PhB) et la mesure réalisée à l'étape b) sont comparées l'une à l'autre et
    d) la capacité d'accumulation d'eau des textiles est déterminée à l'aide de la comparaison.
  2. Procédé selon la revendication 1, caractérisé en ce que la séquence de lavage (SeqE1) réalisée à la phase (b), utilisée pour la mesure de l'absorption d'eau, est similaire à la phase de mouillage (PhB).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la séquence de lavage (SeqS1, SeqS2, SeqS3) utilisée pour la mesure de l'absorption d'eau pendant la phase (b) est la première séquence de lavage (SeqS1).
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'absorption d'eau des textiles est mesurée par détermination du niveau (Nv) après l'amenée d'un certain volume de lessive (V).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'absorption d'eau des textiles est mesurée par détermination du volume de lessive (V) nécessaire pour obtenir un certain niveau (Nv).
  6. Procédé de lavage de textiles, caractérisé en ce qu'
    e) un procédé destiné à déterminer la capacité d'accumulation d'eau selon l'une quelconque des revendications 1 à 5 est exécuté, et
    f) en ce qu'au moins une séquence de lavage (SeqS2, SeqS3) successive à la séquence de lavage (SeqS1) utilisée pour la mesure de l'absorption d'eau est réglée en fonction de la capacité d'accumulation d'eau déterminée.
  7. Procédé selon la revendication 6, caractérisé en ce que les séquences de lavage successives (SeqS2, SeqS3) sont réglées de manière à ce que pour les textiles à haute capacité de rétention d'eau le temps-cadre soit augmenté par rapport aux textiles à faible capacité de rétention d'eau.
  8. Procédé selon l'une quelconque des revendications 6 ou 7, caractérisé en ce qu'au moins une séquence de déshumidification (SeqE2, SEqE3) successive à la séquence de lavage (SeqS1) utilisée pour la mesure de l'absorption d'eau est réglée en fonction de la capacité d'accumulation d'eau déterminée.
  9. Procédé selon la revendication 8, caractérisé en ce que la séquence de déshumidification (SeqE2, SEqE3) est réglée de manière à ce que pour les textiles à haute capacité de rétention d'eau le temps-cadre et/ou le nombre de tours du tambour à linge soient augmentés par rapport aux textiles à faible capacité de rétention d'eau.
  10. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'une phase d'essorage destinée à essorer les textiles succède à la détermination de la capacité d'accumulation d'eau des textiles, la phase d'essorage (PhSch-N, Ph-Sch-H) étant réglée en fonction de la capacité d'accumulation d'eau.
  11. Procédé selon la revendication 10, caractérisé en ce que la phase d'essorage (PhSch-N, Ph-Sch-H) est réglée de manière à ce que pour les textiles à haute capacité de rétention d'eau le temps-cadre d'essorage est augmenté par rapport aux textiles à faible capacité de rétention d'eau.
  12. Procédé selon l'une quelconque des revendications 10 ou 11, caractérisé en ce que la phase d'essorage (PhSch-N, Ph-Sch-H) est réglée de manière à ce que pour les textiles à haute capacité de rétention d'eau le nombre de tours de l'essorage final est augmenté par rapport aux textiles à faible capacité de rétention d'eau.
  13. Procédé selon l'une quelconque des revendications 10 à 12, caractérisé en ce qu'au moins une pré-vidange (BV-H) est réalisée au début de la phase d'essorage (PhSch-N, Ph-Sch-H).
  14. Procédé selon l'une quelconque des revendications 10 à 13, caractérisé en ce que plusieurs blocs d'essorage principal (B1-N, B2-N, B1-H, B2-H) sont ménagés pendant phase d'essorage (PhSch-N, Ph-Sch-H).
  15. Lave-linge comprenant un dispositif de commande (12), lequel est configuré pour déterminer la capacité d'accumulation d'eau de textiles ainsi que pour commander une phase de mouillage (PhB) et une phase de lavage (PhSp) d'une opération de lavage, et comprenant un réservoir à lessive (1), un tambour à linge (2), logé de manière rotative dans le réservoir à lessive (1), destiné à loger des textiles ainsi que des dispositifs (121, 14) destinés à entraîner le tambour à linge (2), une absorption d'eau des textiles étant mesurée pendant la phase de mouillage (PhB),
    caractérisé en ce que la phase de lavage (PhSp) présente au moins une séquence de lavage (SeqS1, SeqS2, SeqS3) successive à une séquence de déshumidification (SeqE1, SeqE2, SeqE3) et en ce que le dispositif de commande (12) est configuré pour déterminer la capacité d'accumulation d'eau de telle manière '
    I) qu'une absorption d'eau des textiles est mesurée pendant au moins l'une des séquences de lavage (SeqS1, SeqS2, SeqS3),
    II) que la mesure de l'absorption d'eau des textiles pendant la phase de mouillage (PhB) et la mesure réalisée à l'étape (I) sont comparées l'une à l'autre et
    III) que la capacité d'accumulation d'eau des textiles est déterminée à l'aide de la comparaison.
  16. Lave-linge selon la revendication 15, caractérisé en ce qu'il est équipé d'une unité de traitement et de commande électronique (121), dans laquelle est réalisé un système expert.
  17. Lave-linge selon l'une quelconque des revendications 15 et 16, caractérisé en ce que l'unité de commande (12) est configurée de manière à ce que, suite à la détermination de la capacité d'accumulation d'eau des textiles, une phase d'essorage destinée à essorer les textiles est réalisable, la phase d'essorage (PhSch-N, Ph-Sch-H) étant réglée en fonction de la capacité d'accumulation d'eau.
EP07730068A 2006-06-29 2007-06-12 Détermination de la capacité d'accumulation d'eau de textiles dans un lave-linge et lave-linge correspondant Active EP2049723B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006029950A DE102006029950A1 (de) 2006-06-29 2006-06-29 Bestimmung des Wasserpeichervermögens von Textilen in einer Waschmaschine
PCT/EP2007/055737 WO2008000614A1 (fr) 2006-06-29 2007-06-12 détermination de la capacité d'accumulation d'eau de textiles dans un lave-linge et lave-linge correspondant

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EP2049723A1 EP2049723A1 (fr) 2009-04-22
EP2049723B1 true EP2049723B1 (fr) 2012-01-11

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US (1) US8220292B2 (fr)
EP (1) EP2049723B1 (fr)
CN (1) CN101479420B (fr)
AT (1) ATE541077T1 (fr)
DE (1) DE102006029950A1 (fr)
WO (1) WO2008000614A1 (fr)

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DE102018217549A1 (de) 2018-10-12 2020-04-16 BSH Hausgeräte GmbH Haushaltsgerät

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CN101479420B (zh) 2011-04-13
WO2008000614A1 (fr) 2008-01-03
US20090307850A1 (en) 2009-12-17
EP2049723A1 (fr) 2009-04-22
ATE541077T1 (de) 2012-01-15
CN101479420A (zh) 2009-07-08
DE102006029950A1 (de) 2008-01-03
US8220292B2 (en) 2012-07-17

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