EP2049723A1 - Determination of the water storage capacity of textiles in a washing machine, and corresponding washing machine - Google Patents
Determination of the water storage capacity of textiles in a washing machine, and corresponding washing machineInfo
- Publication number
- EP2049723A1 EP2049723A1 EP07730068A EP07730068A EP2049723A1 EP 2049723 A1 EP2049723 A1 EP 2049723A1 EP 07730068 A EP07730068 A EP 07730068A EP 07730068 A EP07730068 A EP 07730068A EP 2049723 A1 EP2049723 A1 EP 2049723A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- textiles
- phase
- rinsing
- storage capacity
- water storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—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, which follows a dehumidifying sequence.
- 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.
- 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. Since textiles with high water retention capacity (eg due to high retention capacity and / or high tendency to swell) clearly differ in their water absorption behavior compared to textiles with low water retention capacity. assets, the water storage capacity can be determined on the basis of 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 time-resolved measurement, basically on the textile type, 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, 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.
- At least one pre-dewatering with corresponding pre-dewatering slinging peaks is carried out at the beginning of the spin phase and / or several main slingshot blocks are provided.
- 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.
- 1 is a schematically illustrated washing machine with a tub and a laundry drum mounted therein for receiving textiles
- FIG. 3 shows a diagram for the time sequence of the method immediately following the washing process according to the invention for rinsing the textiles which have just been washed
- Fig. 4 is a diagram of the timing of the subsequent immediately following the rinse process of the invention for spinning the newly washed textiles, showing a low water absorption
- Fig. 5 is a diagram for the timing of the immediately following the rinse process according to the invention for Skidding of newly washed textiles showing a high water absorption.
- the tub 1 in Fig. 1 includes a drum 2 mounted therein about a horizontal axis 3 with carriers 4 for the laundry consisting of 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 located above the lowest point of the laundry drum 2, scooped up 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.
- Sockets 8 or 9 in the tub 1 and consists either only of water or a mixture of water and detergent.
- Washing aids which are located in the chambers are then transferred from the water through the line 10 from the Waschstoffein Kunststoff Assistants 1 1 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.
- 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 Nv.
- Other types of evaluations or expert systems may be used, e.g. B. including fuzzy logic.
- the washing machine shown in Fig. 1 for example, operated as shown in Figs. 2 to 5.
- 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 to operate the washing machine in the wetting phase PhB, to fill water via the filled with detergent detergent chamber 1 1 1 and the line 10 in the tub 1.
- the water carries the detergent with in the tub 1, where it is distributed. Together they form the wash liquor.
- the laundry drum 2 is initially driven only at a low rotational speed (for example, 23 rpm) in accordance with the bold continuous diagram line n.
- 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.
- the dehumidifying SeqE1, SeqE2, SeqE3 the lye is pumped out by operating the drain pump and the laundry is gently spun for gentle dehumidification with a low speed of scouring the washing drum, so that the residual liquor contained in the textiles is largely squeezed 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.
- the spin phase PhSch-N shown in FIG. 4 for spinning laundry or textiles with low water absorption capacity comprises a first main spin block B1 -N, in which the spin start in the lower region is slow (waiting / spinning plateau 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 the spin frame time may be reduced compared to spinning high-moisture textiles.
- the spin phase PhSch-N in this exemplary embodiment comprises an optional further main spin block B2-N, which starts because of the already effected 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 is shown in FIG. 5, which is shown in size ratios corresponding to FIG.
- PhSch-N is slowly started up over the entire spin start-up - for the same reason as in block B1 -N in FIG. 4 and in particular with high water retention capacity - compared to B2-N in the spin phase.
- 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 plurality of pre-dewatering peaks (spin pulses) at a comparatively low speed.
- the number and shape of the sling sequences is set to the required dehumidification, especially at high water retention multiple main sling blocks B1 -H, B2-H low, the number and shape of which depends on the actually detected conditions.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006029950A DE102006029950A1 (en) | 2006-06-29 | 2006-06-29 | Determination of the water storage capacity of textiles in a washing machine |
PCT/EP2007/055737 WO2008000614A1 (en) | 2006-06-29 | 2007-06-12 | Determination of the water storage capacity of textiles in a washing machine, and corresponding washing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2049723A1 true EP2049723A1 (en) | 2009-04-22 |
EP2049723B1 EP2049723B1 (en) | 2012-01-11 |
Family
ID=38421193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07730068A Active EP2049723B1 (en) | 2006-06-29 | 2007-06-12 | Determination of the water storage capacity of textiles in a washing machine, and corresponding washing machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US8220292B2 (en) |
EP (1) | EP2049723B1 (en) |
CN (1) | CN101479420B (en) |
AT (1) | ATE541077T1 (en) |
DE (1) | DE102006029950A1 (en) |
WO (1) | WO2008000614A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020074299A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Domestic appliance |
WO2020074310A2 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Method and household appliance |
WO2020074298A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Domestic appliance and method for producing a domestic appliance |
WO2020074294A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Domestic appliance |
WO2020074301A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Domestic appliance, method for producing a domestic appliance and method for dismantling a domestic appliance |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9139946B2 (en) * | 2009-12-31 | 2015-09-22 | Arcelik Anonim Sirketi | Washing machine wherein the type and amount of laundry can be detected |
DE102010042172A1 (en) | 2010-10-07 | 2012-04-12 | BSH Bosch und Siemens Hausgeräte GmbH | Domestic appliance with a controller for an electrical energy supply network with associated data network and method for operating a control of a domestic appliance on this power supply network |
US9243987B2 (en) | 2013-05-01 | 2016-01-26 | Whirlpool Corporation | Method of determining fabric type of a laundry load in a laundry treating appliance |
DE102014207742B4 (en) * | 2014-04-24 | 2021-02-11 | BSH Hausgeräte GmbH | Process for the hybrid treatment and rinsing of laundry items as well as a suitable washing machine |
DE102015201831A1 (en) * | 2015-02-03 | 2016-08-04 | BSH Hausgeräte GmbH | Method for determining laundry properties and suitable condensation dryer |
CN106319836A (en) * | 2015-06-24 | 2017-01-11 | 青岛海尔洗衣机有限公司 | Dehydration control method for washing machine |
US10570543B2 (en) * | 2016-10-06 | 2020-02-25 | Emz-Hanauer Gmbh & Co. Kgaa | Washing machine and method of controlling the washing machine |
EP3844335A1 (en) | 2018-08-27 | 2021-07-07 | Ecolab USA Inc. | System and technique for extracting particulate-containing liquid samples without filtration |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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IT1246481B (en) * | 1990-10-29 | 1994-11-19 | Eurodomestici Ind Riunite | METHOD AND DEVICE FOR DETERMINING THE TYPE OF FABRIC CONSTITUTING A LOAD OR LINEN TO BE WASHED IN A WASHING MACHINE OR SIMILAR MACHINE |
DE4138636C2 (en) * | 1991-11-25 | 2003-04-10 | Aeg Hausgeraete Gmbh | Method for determining the water requirement in program-controlled washing machines |
DE4304031A1 (en) | 1993-02-11 | 1994-08-18 | Licentia Gmbh | Drum washing machine with a program sequence control device |
CN1125275A (en) * | 1993-08-27 | 1996-06-26 | 朱亮 | Fuzzy control method for washer and its controller |
IT1267603B1 (en) * | 1994-12-13 | 1997-02-07 | Zanussi Elettrodomestici | WASHING MACHINES WITH PERFECTED DEVICES FOR DETERMINING THE TYPE OF FABRIC |
DE19538291C2 (en) * | 1995-10-14 | 2001-07-12 | Aeg Hausgeraete Gmbh | Procedure for determining the water absorption level of laundry |
IT1284371B1 (en) * | 1996-02-05 | 1998-05-18 | Merloni Elettrodomestici Spa | METHOD FOR DETERMINING THE QUANTITY AND / OR TYPE OF FABRIC INTRODUCED IN A WASHING MACHINE. |
KR100403026B1 (en) * | 2001-07-31 | 2003-10-23 | 삼성전자주식회사 | Control method of washing machine considering characteristic of absorption in clothes |
KR20030021348A (en) * | 2001-09-05 | 2003-03-15 | 주식회사 엘지이아이 | method for controlling washing in drum-type washing machine |
DE10234473A1 (en) | 2002-07-29 | 2004-02-12 | BSH Bosch und Siemens Hausgeräte GmbH | A method for acceleration of the absorption of water in the dry wash load of an automatic washing machine, using a controlled sequence of alternate direction tumbles at different speeds |
-
2006
- 2006-06-29 DE DE102006029950A patent/DE102006029950A1/en not_active Withdrawn
-
2007
- 2007-06-12 US US12/308,735 patent/US8220292B2/en active Active
- 2007-06-12 CN CN2007800244644A patent/CN101479420B/en active Active
- 2007-06-12 WO PCT/EP2007/055737 patent/WO2008000614A1/en active Application Filing
- 2007-06-12 EP EP07730068A patent/EP2049723B1/en active Active
- 2007-06-12 AT AT07730068T patent/ATE541077T1/en active
Non-Patent Citations (1)
Title |
---|
See references of WO2008000614A1 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020074299A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Domestic appliance |
WO2020074310A2 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Method and household appliance |
WO2020074298A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Domestic appliance and method for producing a domestic appliance |
WO2020074294A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Domestic appliance |
WO2020074301A1 (en) | 2018-10-12 | 2020-04-16 | BSH Hausgeräte GmbH | Domestic appliance, method for producing a domestic appliance and method for dismantling a domestic appliance |
Also Published As
Publication number | Publication date |
---|---|
US20090307850A1 (en) | 2009-12-17 |
US8220292B2 (en) | 2012-07-17 |
EP2049723B1 (en) | 2012-01-11 |
CN101479420B (en) | 2011-04-13 |
DE102006029950A1 (en) | 2008-01-03 |
CN101479420A (en) | 2009-07-08 |
WO2008000614A1 (en) | 2008-01-03 |
ATE541077T1 (en) | 2012-01-15 |
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