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
• • 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
  • D06F2103/04—Quantity, e.g. weight or variation of 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
  • D06F2103/16—Washing liquid temperature
• • 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
  • D06F2103/28—Air properties
• • 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
• • 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
  • D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
• • 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
  • D06F2105/08—Draining of washing liquids
• • 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
• • 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
• • 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
  • D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
• • 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
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/04—Heating arrangements
• • 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
  • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
  • D06F39/08—Liquid supply or discharge arrangements
  • D06F39/083—Liquid discharge or recirculation arrangements
  • D06F39/085—Arrangements or adaptations of pumps

Definitions

• the invention relates to a method for operating a washing machine with an improved residual moisture and a particularly suitable for carrying out this method washing machine.
• a washing program in a washing machine with a drum rotatably mounted in a tub generally has a rinsing phase with several spinning steps after a wetting phase and a washing phase. With a last spin step, as much water as possible should be removed from the wash, so that the washed laundry, which may have been treated with a fabric softener, does not have to be taken out dripping wet.
• the residual moisture still present in the laundry after the spin phase which is often referred to as "slug residual moisture"
• slug residual moisture is as low as possible
• the centrifugal force forces the water from the laundry through drainage holes of the drum to the outside into a space between the drum and the tub, where it ideally flows into a lower part of the tub, a region comprising a heater, also referred to as a “heater bag” becomes. From the radiator pocket, this water can then be pumped out for disposal or reuse.
• slug residual moisture the residual moisture still present in the laundry after the spin phase
• EP 2 390 397 A1 discloses a method for carrying out a washing cycle and a subsequent drying cycle in a washer-dryer with a heat pump, in which at least one final rinse phase of the washing cycle is carried out using heated water in order to raise the temperature inside the tub , This is to solve the problem of inefficient operation during the initial phase of a drying cycle, which arises because the heat pump system takes a certain time to reach a state of equilibrium. Due to the flushing with the heated water, the temperature inside the tub and drum is relatively high, so that the initial heat exchange increased at the evaporator of the heat pump. This should reduce the time to reach an advantageous state of equilibrium when operating the heat pump.
• the heating of the water can be done by the usual in a washing machine heater or by an additional hot water supply or by a renewable energy source such as solar energy.
• the temperature of the heated water can be between 40 and 80 ° C.
• EP 2 503 048 A1 describes a method for washing in a washing machine and a corresponding washing machine.
• the method comprises between the rinsing phase and the spin phase a heating phase in which the laundry is heated.
• the heating phase comprises a direct heating of the laundry, more preferably by heating with infrared radiation.
• an object of the present invention to provide a process for rinsing laundry which is improved with regard to the consumption of water and / or energy and which enables a low residual moisture content of the washed and thrown laundry after a final spin phase.
• the object of the invention was also to provide a particularly suitable for this purpose washing machine.
• the invention thus relates to a method for rinsing laundry in a washing machine with a control device for controlling a program sequence, a rotatably mounted in a tub drum, a heater, a pump and a drive motor for the drum, wherein subsequent to a washing phase in a Rinsing phase with one or more rinsing steps at least in the last rinsing step after the addition of the last rinse water portion in the tub and the rinsing of the laundry
• step (c) in the event that the amount of water collected in step (b) is q CO i ⁇ q se t, the tub is filled with water from the water supply until q> q set applies to the amount of water q in the tub;
• step (e) distributing the heated water from step (d) in the laundry;
• step (F) the drum is operated at a spin speed ⁇ 2 , to drive in the laundry distributed heated water from step (e) from the laundry and pump.
• the pumping is performed in step (a) until a delivery rate of the pump has dropped to 10%, in particular 8% and particularly preferably 5% of its initial value p in it.
• the pumping in step (a) is carried out until the pump detects the beginning of the promotion of a gas / air mixture. In general, this is associated with a relatively large fluctuation of the delivery rate.
• step (a1) in step (a1), the drum (2) is allowed to rotate for at most one minute with a number of revolutions ⁇ of at most
• a heating of the laundry is achieved in order to reduce the water retention capacity of the laundry, whereby the predetermined temperature T set is generally in the range of 40 ° C. to 95 ° C.
• the predetermined temperature T set in this area can be suitably selected gsform the method is therefore in the control device of the washing machine used a relationship between the predetermined amount of water q set and a loading amount w w deposited.
• the amount of water q set is lower, the lower the amount of loading w w with laundry.
• the loading amount w w can be determined automatically in a known manner or entered by a user of the washing machine. According to the invention, it is preferable if a loading quantity of the drum with laundry is determined on the basis of a profile of the pressure signal of a pressure sensor in a wetting phase.
• water is advantageously added and, at a given time t.sub.1 in the method, the drum is turned and the water is introduced, and a change in the pressure signal of the pressure sensor is evaluated for determining the loading quantity.
• substantially rinse water already used is heated and used to heat the laundry.
• the heating of the water can be done in different ways.
• the heating in step (d) is carried out using a heater present in the tub for heating a wash liquor.
• a minimum amount q req required for operation of the heater is generally set to water before step (d).
• the tub filled with water from the water supply until the water quantity q in the tub q> q set applies.
• the water supply includes in particular a water connection fitting for the domestic water network and an electrically controlled two-way valve.
• the water supply is controlled so that for the amount of water q in the tub (1.1 xq set )> q ⁇ q se t applies.
• the temperature T w of the water is measured during step (e) or during step (f) or between step (e) and step (f) in order to determine a sufficient heating of the laundry.
• step (f) for example, in step (f) with the pump switched off, the drum is operated at the spin speed ⁇ 2 until a sufficient amount of water q che c k is present in the tub for measuring the temperature T w of the centrifugalized water.
• steps (b) to (f) are then carried out again.
• the pump is first switched on in step (f) and then the drum is operated at a spin speed ⁇ 2 .
• the inventive method is not only advantageous for achieving a low residual moisture with further reduced water and / or energy consumption.
• it can also be used for disinfecting or destroying germs if laundry is being washed in the washing machine at a relatively low temperature of the washing liquor.
• the steps (a) to (f) are subsequently carried out at a washing phase taking place at a temperature of at most 30 ° C.
• step (d) the level is generally measured. If this does not reach a certain value, the condition q> q set is usually not fulfilled.
• the level detection can be done for example by evaluating the hydrostatic pressure in the tub when a pressure sensor is arranged in this. Alternatively or in In addition to this, the electric power of the drive motor can be evaluated in terms of the level of the water, because the electrical power of the drive motor increases with increasing level in the tub. Preference is therefore given to checking the condition q> q set in that the amount of water q in the tub is determined by measuring and evaluating the hydrostatic pressure in the tub or by measuring and evaluating the electrical power of the drive motor.
• the heated water from step (d) is applied to the laundry by means of a spraying device ("water spray device") whose water outlet is directed onto an inner drum wall, one possibility being the water inlet into the drum
• a spraying device whose water outlet is directed onto an inner drum wall
• the water outlet opening of the spraying device can be designed with multiple channels or a fluidically optimized nozzle can be used
• the method according to the invention is preferably accelerated on the laundry ring applied to the inner wall of the drum and driven through the laundry by the centrifugal forces acting on the water, thereby making it possible to warm the laundry particularly well with warm water n, so that the retention force for the water in the laundry (herein also referred to as "water absorption capacity”) can be efficiently reduced.
• step (e) comprises a reversing cycle in which the drum is rotated at a speed below 60 rpm ("revolutions per minute"), preferably below 50 rpm and more preferably below 40 rpm.
• the invention also relates to a washing machine with a control device for controlling a program sequence, a drum rotatably mounted in a tub, a heater, a pump and a drive motor for the drum, wherein the control device is adapted to carry out a method for washing laundry, wherein following a washing phase in a rinsing phase with one or more rinsing steps at least in the last rinsing step after the addition of the last rinse water portion into the tub and the rinsing of the laundry
• step (c) in the event that the amount of water collected in step (b) is q CO i ⁇ q se t, the tub is filled with water from the water supply until q> q set applies to the amount of water q in the tub;
• step (e) distributing the heated water from step (d) in the laundry;
• the drum is operated at a spin speed ⁇ 2 , to drive in the laundry distributed heated water from step (e) from the laundry and pump.
• the washing machine has a spraying device with which the heated water from step (d) is applied to the laundry.
• the invention has the advantage that the reduction of the residual moisture of laundry after a washing process and a subsequent spin in a washing machine can be achieved in an economical manner. In addition to a saving of water and a saving of energy is possible. In addition, the invention allows that at a Lower mechanical load, a lower residual moisture, ie Schleuderrestfeuchte can be achieved. Finally, the invention makes it possible to kill germs even when washing at low temperature via a so-called rinsing spinner block at elevated temperature. In such a case can also be spoken by a Hygiene Riverside Beneficial.
• Fig. 1 is a schematic representation of a washing machine in which a method according to the invention can be carried out.
• the washing machine in Fig. 1 comprises a tub 1, in which a drum 2 is rotatably mounted and can be operated by a drive motor 14.
• the axis of rotation 3 of the drum 2 is directed from the horizontal by a small angle (e.g., 13 °) forwardly upwards, so as to provide easier access and insight into the interior of the drum 2.
• a small angle e.g. 13 °
• the scooping devices 5 of the washing machine shown in Fig. 1 are designed so that they can optimally draw water at the right rotation of drum 2 shown here by the arrow 17.
• the washing machine also has a liquor inlet system comprising a water connection fitting for the domestic water network 8, an electrically controllable two-way valve 9 and a supply line 10 to the tub 1, which may optionally also be guided via a Waschstoffein Whynd ("Ein Stammschale") 1 1, from the In addition, in the tub 1, a heating device 13.
• the two-way valve 9 as well as the heater 13 can be controlled by a control device 12 in response to a flowchart, the time program and / or can be bound to the achievement of certain measured values of parameters such as liquor level, liquor temperature, speed of the laundry drum, etc.
• the control device 12 is set up to carry out a method according to the invention with the steps (a) to (f).
• step (c) the controller may control the replenishment of the water until the condition q> q set is satisfied.
• the control device 12 can suitably control, for example, the heater, the drive motor and the pump.
• the loading amount with laundry can be taken into account, for example by resorting to a relationship between loading amount and water quantity stored in the control device 12 in relation to a total amount of water to be used in step (d).
• the tub 1 is equipped with a Wassersprühvorraum 18 which is designed so that with her in step (d) heated water targeted to the laundry 7, located on an inner drum shell 19 of drum. 2 can be sprayed.
• the warm water exits from a water outlet opening 20.
• the water spray device 18 can be supplied using an electrically controllable three-way valve 21, which can be switched so that a liquid present in the tub 1 can be conveyed either to the water spray device 18 or to a waste water outlet 22.
• 15 is a pressure sensor for measuring the hydrostatic pressure p in the tub 1.
• the hydrostatic pressure p results from the level of the water.
• the signals from drive motor 14, pressure sensor 15 and a temperature sensor 23 are supplied to the control device 12. In particular, it can be determined with the temperature sensor 23 whether the heating of the laundry 7 is sufficient or steps (b) to (f) of the method according to the invention have to be carried out again.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Control Of Washing Machine And Dryer (AREA)
• Detail Structures Of Washing Machines And Dryers (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

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ID=50877242

Family Applications (1)

Country Status (6)

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Citations (5)

Family Cites Families (3)

• 2013
  • 2013-05-29 DE DE102013210129.5A patent/DE102013210129A1/de not_active Withdrawn
• 2014
  • 2014-05-19 WO PCT/EP2014/060217 patent/WO2014191248A1/de active Application Filing
  • 2014-05-19 CN CN201480030514.XA patent/CN105283597B/zh active Active
  • 2014-05-19 EP EP14727436.9A patent/EP3004448B1/de active Active
  • 2014-05-19 RU RU2015152585A patent/RU2634578C2/ru active
  • 2014-05-19 PL PL14727436T patent/PL3004448T3/pl unknown

Patent Citations (5)

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