EP3134570A1 - Method for the hybrid treatment and rinsing of laundry items and washing machine suitable therefor - Google Patents
Method for the hybrid treatment and rinsing of laundry items and washing machine suitable thereforInfo
- Publication number
- EP3134570A1 EP3134570A1 EP15712625.1A EP15712625A EP3134570A1 EP 3134570 A1 EP3134570 A1 EP 3134570A1 EP 15712625 A EP15712625 A EP 15712625A EP 3134570 A1 EP3134570 A1 EP 3134570A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- treatment
- drum
- water
- range
- steps
- 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
- 238000011282 treatment Methods 0.000 title claims abstract description 95
- 238000005406 washing Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 239000003599 detergent Substances 0.000 claims description 11
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 13
- 101150114468 TUB1 gene Proteins 0.000 description 8
- 238000011109 contamination Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000003518 caustics Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002979 fabric softener Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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
- 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
- D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/06—Type or material
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/20—Washing liquid condition, e.g. turbidity
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/28—Electric heating
Definitions
- the invention relates to a method for operating a washing machine for the treatment of laundry items in a washing machine with a rotatably mounted in a tub drum, a drive motor for the drum, a control device, a water supply system, and a Laugenablaufsystem, comprising the steps:
- the usual laundry treatment processes in a washing machine consist of several treatment steps (wetting phase, pre-wash, main wash, rinse), which are each associated with a more or less complete replacement of the aqueous liquid in the tub.
- Each laundry treatment step generally begins with the supply of fresh water, which is disposed of as wastewater at the end of each treatment step.
- treatment agent residues for example detergents, softeners
- spin-drying cycles are switched, in which the drum is rotated at a high number of revolutions. This requires a lot of electrical energy.
- the water consumption is an important operating size. For economic and ecological reasons, it is desirable to keep the water consumption as low as possible, whereby due to the mechanical engineering conditions and the suction behavior of the laundry items to be treated a minimum consumption of water is predetermined.
- a rinsing phase with one or more rinsing steps with water.
- the items of laundry are freed from the wash liquor enriched with impurities and detergent and, if appropriate, residues of impurities and detergent still adhering to the laundry items.
- washing programs are being developed with a view to a higher loading ratio, lower energy consumption, lower water consumption, shorter washing programs and a better residual moisture content.
- the invention has for its object to provide a suitable for performing this method washing machine.
- washing machine refers to both a pure washing machine having only a washing function and a washer-dryer which is a combination of a washing machine and a dryer.
- the invention thus relates to a method for operating a washing machine for treating items of laundry with a drum rotatably mounted in a tub, a drive motor for the drum, a control device, a water supply system and a lye drain system,
- step (d) n times (n> l), a treatment-rinsing module is performed, wherein each of the treatment liquor is partially removed from the tub and water is added, and the laundry is respectively reduced in concentration c n + i ⁇ c n (n> l) are treated on treatment agent in a (n + l) th treatment step. Due to the decreasing concentration of treatment agent, however, it increasingly comes to a rinsing of the laundry items.
- addition of water or a treating agent is meant herein the addition to the tub and / or drum, since these are generally communicated through openings in the drum shell, water and treating agent will mix, wherein the concentration of the treating agent is generally the same in the tub and in the drum
- treating step herein also includes a Step of treatment with a fabric softener, a colorant or other chemical treatment agent.
- the treatment steps are washing steps and the treating agent is a detergent.
- first step (a) is carried out and then simultaneously or sequentially steps (b) and (c), wherein the order of steps (b) and (c) may be different.
- a treatment agent is added together with the water, for example via an induction bowl of the washing machine.
- a treatment-rinsing module in each case the treatment liquor is partially removed from the tub and water is added, and the laundry items are each treated with a reduced concentration c n + i ⁇ c n (n> l) of treatment agent in a (n + l ) -th treatment step.
- the amount of treatment liquor removed and the amount of water added may be the same or different, each and independently. In particular, the added amount of water may also be greater than the removed amount of treatment liquor.
- treating liquor is to be broadly understood to mean an aqueous liquor in which a treating agent is present.
- aqueous liquor as used herein includes, in particular, water and treating liquor. Since a washing machine used for the method according to the invention generally has a drain pump, the removal of the treatment liquor is generally carried out by pumping. In general, the treatment liquor is then disposed of. However, with only a very small loading of the treatment liquor with treatment agent and other substances can be provided that this is stored for reuse in the washing machine.
- a washing machine used in the method according to the invention preferably has a heating device for heating an aqueous liquid, which is generally arranged in the tub below the drum.
- the water and / or the treatment liquor is heated by means of a heating device in the tub during at least one of the steps (a) to (d).
- a heating device in the tub during at least one of the steps (a) to (d).
- the treatment flushing module can be designed very differently. In this case, preferably different factors such as the type and amount of laundry items and the type and amount of soiling of the laundry items are taken into account. Depending on this, in particular the duration and the number of treatment-flushing modules are configured and, if appropriate, a heating of the treatment liquor is also carried out.
- the removed amount of treating liquor and the amount of water added may each be the same or different and independent of each other.
- the added amount of water can also be greater than the pumped amount of treatment liquor.
- the pumped amount M Wn of the treatment liquor can vary greatly according to the invention and can be matched to a laundry item to be treated.
- the treatment liquor in the washing machine as so-called free liquor M fF , as dead volume M to t (volume of liquid between a tub bottom and the lower end of the drum) and as bound in the laundry pieces M ge b of wash liquor can occur.
- M Wn should be greater than M fF , a more or less pronounced rotation of the drum is recommended.
- the rotation of the drum in steps (d) and (g) is preferably carried out at a rotational speed in the range of 20 to 80 revolutions per minute, in particular at 40 to 60 revolutions per minute.
- the rotational speeds ⁇ and ⁇ ⁇ + ⁇ may be the same or different, preferably they are the same.
- the absolute amount of treatment agent in the treatment liquor decreases, and the addition of water reduces the concentration of the treatment agent in the treatment liquor. It has been found that in the process according to the invention, the ratio c 2 / Ci is preferably in the range of 0.5 to 0.8, and more preferably in the range of 0.6 to 0.7.
- the steps (e) to (h) may also be referred to as a wash-rinse module when the treatment step is a washing step.
- n 4, where preferably c 2 is in the range from 0.55 * Ci to 0.95 * Ci, c 3 is in the range from 0.35 * Ci to 0.5 * Ci, c 4 is in the range of 0, 1 * Ci to 0.25 * Ci and c 5 is in the range ⁇ 0.05 * Ci.
- the aqueous liquid ie in particular the water to be added or added and / or the treatment liquor, can also be heated in each of the washing-rinsing modules.
- the design of the wash-rinse modules with respect to the choice of temperature will generally depend on a detected or predetermined contamination of laundry items.
- the wash-rinse modules generally have a duration of at least 5 minutes, preferably at least 15 minutes, to allow sufficient time for efficient washing and rinsing.
- the drum at a rotational speed ü) is rotated s n ( ⁇ > 1) in the range from 70 to 1000 revolutions per minute.
- the rotational speed GÜS 1 is in the range of 70 to 200, more preferably in the range of 80 to 150 and very particularly preferably in the range of 90 to 120 revolutions per minute.
- n ⁇ m and ⁇ ⁇ 1 ⁇ m ) s m for rotation of the drum in step (e), by the way, it is preferable that n ⁇ m and ⁇ ⁇ 1 ⁇ m ) s m .
- spinning is carried out at a rotational speed Ü) F S in the range from 1000 to 2000 revolutions per minute.
- Ü rotational speed
- the proportion of Mi based on the sum ⁇ ⁇ + ⁇ ( ⁇ > 1), in the range of 15 to 45%, preferably in the range of 15 to 35% and most preferably in the range of 18 to 30% lies.
- M n + 1 for the addition of an amount M n + 1 of water in at least one step (f), M n + 1 > M n .
- the loading of the drum with items of laundry which is important for embodiments of the method according to the invention can be determined by a suitable method of determination, for example by measuring the weight of the laundry, or it can be adjusted manually by a user of the washing machine.
- the type of laundry can be determined by a suitable method of determination, such as an optical method, or manually adjusted by a user of the washing machine.
- the design of the treatment-flushing modules can be specified by a user of the washing machine or semi-or fully automatically made.
- suitable sensors for the type and amount of laundry items and the type and amount of contaminants may be present, which allow a method according to the invention can be performed semi-automatically or fully automatically.
- Suitable sensors are in particular optical sensors, wherein a turbidity sensor is particularly suitable for the amount of contamination.
- a user in which a turbidity sensor is present in the washing machine used, can, for example, preselect a washing program in which, after step (d), a degree of contamination of the washing liquor is first measured by means of a turbidity sensor. Depending on the degree of contamination can then be carried out the further method and, in particular, the type and number of wash-flush modules can be configured appropriately.
- a relationship between the sensor signal of the turbidity sensor and parameters of the treatment-rinsing modules such as duration, pumped Treatment liquor, amount of water supplied, rotation speed and duration deposited.
- the invention also relates to a washing machine for treating items of laundry with a drum rotatably mounted in a tub, a drive motor for the drum, a control device, a water supply system, a lye drain system, wherein the control device is adapted to carry out a method comprising the steps:
- control means is further arranged to perform a treatment-rinsing module after step (d) n times (n> l), wherein each of the treatment liquor is partially removed from the tub and water is added, and the laundry items respectively th treatment step are treated with a reduced concentration c + n i ⁇ c n (n> l) of treatment agent in an (n + l).
- the washing machine according to the invention preferably comprises a measuring device for determining an amount of aqueous liquid introduced into the tub.
- a clock for determining an amount of aqueous liquid introduced into the tub.
- a flow meter for determining an amount of aqueous liquid introduced into the tub.
- a water level sensor for example, when using a clock, the time can be measured in which water flows through a water supply system.
- the water pressure is known and constant, by measuring the time in which a valve is opened, the amount of aqueous liquid, particularly tap water, introduced into the tub can be well estimated.
- More accurate measurements are made possible by using a flow meter and / or a water level sensor.
- a water level sensor too takes into account that some of the aqueous liquid has possibly already been absorbed by the laundry, according to the invention washing machines in which both a flow rate meter and a water level sensor are present are preferred.
- the washing machine according to the invention has two flow rate meters in order to be able to measure with a first flow meter the amount of supplied water or, for example, supplied via the dispensing tray treatment liquor and the amount of treatment liquor removed.
- the first flow meter is preferably arranged in a supply line to the tub.
- the washing machine has a lye drainage system, which generally includes a drain pump and a sewer line.
- a second flow meter is then preferably present in the sewer, with which the amount of treatment liquor removed from the tub, e.g. Wash liquor, can be measured.
- the washing machine according to the invention preferably contains in the tub and / or in the drum suitable sensors for the amount and type of laundry items and the type and amount of contamination. It is then possible for a method according to the invention to be carried out semi-automatically or fully automatically, taking into account, for example, a degree of contamination of the items of laundry and a loading of items of laundry.
- Suitable sensors for determining the type of items of laundry and of soiling are, in particular, optical sensors, with a turbidity sensor being particularly suitable for the amount of soiling.
- Inventive washing machine and method according to the invention have numerous advantages. It is thus possible to carry out a washing process in an energy-saving and water-saving manner, in which a washing and rinsing of laundry items can be carried out in parallel. Moreover, the invention makes it possible to use high-speed intermediate spinning blades, which are generally carried out in a rinsing phase without. This not only leads to energy savings, but also protects the washing machine, as possible imbalances can not have such a strong effect. This results in a longer life of the washing machine. In addition, the laundry items are spared due to inventively possible reduced rotational speeds of the drum. Finally, the total duration of a washing program can be reduced without affecting, for example, a washing and rinsing result. It is also possible to largely reduce false messages due to foam.
- the figure shows a non-limiting embodiment of a washing machine according to the invention, in which a method according to the invention can be carried out.
- the washing machine contains a tub 1, in which a laundry drum 2 is rotatably mounted about a horizontal axis 3 and can be driven by a drive motor 14.
- a wash liquor in particular in the direction of rotation of the arrow 16 an intensive flooding of the laundry items 7 with wash liquor 6 and a reduction of not bound in the laundry 7 free liquor is achieved.
- the washing machine also has a liquor inlet system comprising a water connection fitting for the domestic water network 8, an electrically controllable valve 9 and a supply line 10 to the tub 1, which is guided here via a Waschstoffein Whyleaned or Ein réelleschale 1 1, from the incoming water detergent portions in can transport the tub 1.
- the valve 9 may be controlled by a controller 12 in response to a program schedule that may be tied to a time schedule and / or the achievement of certain measurements of parameters (liquor level, caustic temperature, laundry drum speed, etc.) within the washing machine ,
- the control device is designed in particular in order to be able to carry out a method according to the invention.
- a turbidity sensor 17 for measuring the turbidity of the aqueous liquid 6 as a measure of their pollution and a water level sensor 15, for example, a pressure sensor, for measuring the amount of aqueous Liquid 6 in the tub 1 available.
- the turbidity sensor 17 makes it possible for the method according to the invention to be carried out semi-automatically or fully automatically as a function of a measured turbidity of the wash liquor 6, so that, in particular, the treatment-flushing steps can also be determined automatically as a function of the sensor signal.
- first flow meter 18 In the feed line 10, in the embodiment shown here, there is also a first flow meter 18, with which the addition of water can be precisely controlled.
- the washing machine of the figure also has a lye drainage system 20 and 21, which in particular comprises a drain pump 20 and a sewer line 21 here.
- a second flow meter 19 is provided in the embodiment shown here, with which the removed from the tub amount of wash liquor can be measured.
- a washing program in this washing machine generally begins with the opening of valve 9, to lead water from the domestic water network 8 in the tub 1.
- a clock not shown here can also be used to determine a filled amount of water over the time required for this purpose.
- Optionally required detergent is generally held in a dispenser 1 1 and rinsed together with water in the tub 1.
- the wash liquor 6 in the tub 1 is then heated in general by means of the heater 13 to a designated wash temperature.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15712625T PL3134570T3 (en) | 2014-04-24 | 2015-03-26 | Method for the hybrid treatment and rinsing of laundry items and washing machine suitable therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014207742.7A DE102014207742B4 (en) | 2014-04-24 | 2014-04-24 | Process for the hybrid treatment and rinsing of laundry items as well as a suitable washing machine |
PCT/EP2015/056638 WO2015161985A1 (en) | 2014-04-24 | 2015-03-26 | Method for the hybrid treatment and rinsing of laundry items and washing machine suitable therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3134570A1 true EP3134570A1 (en) | 2017-03-01 |
EP3134570B1 EP3134570B1 (en) | 2019-12-25 |
Family
ID=52785062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15712625.1A Active EP3134570B1 (en) | 2014-04-24 | 2015-03-26 | Method for the hybrid treatment and rinsing of laundry items and washing machine suitable therefor |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3134570B1 (en) |
CN (1) | CN106232891B (en) |
DE (1) | DE102014207742B4 (en) |
PL (1) | PL3134570T3 (en) |
WO (1) | WO2015161985A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016225146B3 (en) * | 2016-12-15 | 2018-05-03 | BSH Hausgeräte GmbH | Laundry care device with a controller |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3141792A1 (en) * | 1981-10-21 | 1983-05-05 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Process for the water-saving cooling of a washing liquor |
DE3811087C2 (en) * | 1988-02-09 | 1994-08-25 | Bosch Siemens Hausgeraete | Process for washing and rinsing laundry and suitable automatically operated washing machine |
DE10042713C2 (en) * | 2000-08-31 | 2003-08-21 | Miele & Cie | Process for controlling a washing program |
CN1566437A (en) * | 2003-06-17 | 2005-01-19 | 乐金电子(天津)电器有限公司 | Flushing method for drum washing machine |
CN1743536A (en) * | 2005-09-20 | 2006-03-08 | (中外合资)合肥荣事达洗衣机有限公司 | Washing method of tumbling washing machine |
DE102006029950A1 (en) * | 2006-06-29 | 2008-01-03 | BSH Bosch und Siemens Hausgeräte GmbH | Determination of the water storage capacity of textiles in a washing machine |
CN101831782B (en) * | 2010-04-29 | 2011-08-31 | 南京乐金熊猫电器有限公司 | Method for rinsing clothes |
EP2540896B1 (en) * | 2011-06-30 | 2016-04-13 | Electrolux Home Products Corporation N.V. | Method for washing laundry in a laundry washing machine |
DE102011083578B4 (en) * | 2011-09-28 | 2019-10-24 | BSH Hausgeräte GmbH | Process for softening laundry in a washing machine and washing machine suitable for this purpose |
-
2014
- 2014-04-24 DE DE102014207742.7A patent/DE102014207742B4/en active Active
-
2015
- 2015-03-26 WO PCT/EP2015/056638 patent/WO2015161985A1/en active Application Filing
- 2015-03-26 EP EP15712625.1A patent/EP3134570B1/en active Active
- 2015-03-26 PL PL15712625T patent/PL3134570T3/en unknown
- 2015-03-26 CN CN201580020661.3A patent/CN106232891B/en active Active
Also Published As
Publication number | Publication date |
---|---|
PL3134570T3 (en) | 2020-07-13 |
EP3134570B1 (en) | 2019-12-25 |
DE102014207742A1 (en) | 2015-10-29 |
CN106232891A (en) | 2016-12-14 |
CN106232891B (en) | 2018-11-02 |
WO2015161985A1 (en) | 2015-10-29 |
DE102014207742B4 (en) | 2021-02-11 |
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