EP4060108A1 - Appareil d'entretien du linge doté d'une commande - Google Patents

Appareil d'entretien du linge doté d'une commande Download PDF

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Publication number
EP4060108A1
EP4060108A1 EP22155821.6A EP22155821A EP4060108A1 EP 4060108 A1 EP4060108 A1 EP 4060108A1 EP 22155821 A EP22155821 A EP 22155821A EP 4060108 A1 EP4060108 A1 EP 4060108A1
Authority
EP
European Patent Office
Prior art keywords
laundry
washing liquid
wetting
tub
drum
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
Application number
EP22155821.6A
Other languages
German (de)
English (en)
Other versions
EP4060108B1 (fr
Inventor
Kerstin HILT
Thorsten Schiegl
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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Filing date
Publication date
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Publication of EP4060108A1 publication Critical patent/EP4060108A1/fr
Application granted granted Critical
Publication of EP4060108B1 publication Critical patent/EP4060108B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • D06F33/37—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/02—Characteristics of laundry or load
    • D06F2101/04—Quantity, e.g. 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
    • D06F2103/02—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
    • D06F2103/18—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
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
    • 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
    • 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
    • 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
    • D06F39/088—Liquid supply arrangements

Definitions

  • the present invention relates to a laundry care appliance with a controller.
  • the object of the invention is achieved by a laundry care appliance with a tub for holding washing liquid, a washing liquid supply device for supplying washing liquid into the tub, a laundry drum for receiving laundry, with the laundry drum being arranged in the tub, a weight determination device for Determination of a weight of the laundry accommodated in the laundry drum, and a controller which is connected in terms of control technology to the washing liquid supply device and the weight determination device, the weight determination device being designed to determine a weight of the laundry accommodated in the laundry drum during a determination time period, the controller being designed , during a basic time period following the determination time period, the washing liquid supply device for supplying a basic amount of washing liquid into the tub, and wherein the controller is designed to activate the washing liquid supply device for supplying a wetting quantity of washing liquid into the tub during a wetting period following the basic time section, the controller being designed to determine the wetting quantity supplied during the wetting period as a function to determine the specific weight of the laundry received in the laundry drum.
  • the weight determination device includes a weight detection device, which is designed to detect a weight of the laundry received in the laundry drum during the determination time segment.
  • the weight detection device is thus designed in particular to detect the weight of the laundry accommodated in the laundry drum during the determination time segment, that is to say in particular to measure it by sensors.
  • the weight determination device includes in particular only one input element of the laundry care device, which can be actuated by a user of the laundry care device in order to enter the weight of the laundry received in the laundry drum, so that in this case the weight of the laundry is not itself measured by sensors by the laundry care device, but the weight is only made available to the control by the user through input.
  • the weight of the laundry accommodated in the laundry drum includes the dry weight of the laundry accommodated in the laundry drum.
  • the dry weight includes the weight of the laundry before washing liquid, in particular laundry care substance and/or fresh water, has been supplied to the laundry by the washing liquid supply device.
  • the term dry weight does not necessarily mean that the laundry placed in the laundry drum must be completely dry, so that the dry weight of the laundry can also refer to slightly damp laundry items that are placed in the laundry drum by the user in this state.
  • the washing liquid supply means is activated by the controller to supply a basic amount of washing liquid so that a basic basic amount of washing liquid is supplied to the tub.
  • the basic amount of washing liquid is in particular independent of the weight of the laundry determined by the weight determination device and serves in particular only to flush the laundry care substance contained in the dispensing tray into the tub and to ensure initial wetting of the laundry contained in the laundry drum.
  • the basic quantity of washing liquid supplied during the basic time period is constant, in particular in different load categories of the laundry care appliance, and is not varied when the laundry care appliance is loaded differently.
  • the washing liquid supply device is again activated by the controller for supplying a wetting quantity of washing liquid.
  • the wetting quantity of the washing liquid supplied during the wetting period depends on the weight of the laundry determined by the weight determination device, so that the specifically defined wetting quantity ensures load-dependent wetting of the laundry.
  • the wetting quantity of washing liquid supplied during the wetting period is therefore different, in particular in different load categories, and is varied depending on the load quantity or weight of the laundry.
  • the wetting quantity of washing liquid specifically adapted to the weight can be added at an early start of the washing phase, which increases the washing performance with the same program duration or whereby the program duration can be shortened with the same washing performance.
  • a laundry care device is understood to mean a device that is used for laundry care, such as a washing machine or a tumble dryer.
  • a laundry care appliance is understood to mean a household laundry care appliance.
  • a laundry care device that is used as part of housekeeping and is used to treat laundry in normal household quantities.
  • the tub has a drain opening and a feed element
  • the laundry care appliance has a pump which is fluidically connected to the drain opening and the feed element and is designed to pump washing liquid out of the drain opening and to feed the pumped-off washing liquid back to the tub through the feed element in order to pump around the washing liquid
  • the controller is designed to activate the pump for pumping around washing liquid during the base time section and/or during the wetting time section.
  • the controller is designed to activate the washing liquid supply device and the pump simultaneously during the wetting period, or the controller is designed to activate the pump with a time delay after the activation of the washing liquid supply device during the wetting period.
  • Simultaneously activating the pump and the washing liquid supply device during the wetting period results in an immediate and direct wetting of the laundry by means of the washing liquid pumped around via the supply element.
  • the washing liquid supplied by the washing liquid supply device is initially supplied via the drum shell of the laundry drum and wets the laundry accommodated in the laundry drum at a different position than when the washing liquid is pumped around via the pump.
  • the laundry care appliance has a fill level sensor for detecting a fill level of washing liquid in the tub, the controller being designed to end the wetting time segment if the washing liquid fill level detected during the wetting time segment exceeds a fill level threshold value.
  • the controller is designed to determine the duration of the wetting period as a function of the weight of the laundry accommodated in the laundry drum and/or as a function of the detected level of washing liquid.
  • the base amount of washing liquid supplied to the tub during the base time period is determined independently of the weight of the laundry held in the laundry drum.
  • the base quantity is the same for different laundry loads, so that a simplified supply of the base quantity is ensured becomes.
  • the basic quantity is only used to flush laundry care substance from the dispensing tray into the tub, or to initially wet the laundry with washing liquid.
  • the base amount supplied during the base period is less than the wetting amount supplied during the wetting period.
  • the tub has a heating device for heating the washing liquid contained in the tub, and the controller is designed to activate the heating device for heating the washing liquid contained in the tub during the wetting period.
  • the laundry care appliance has a drum drive for rotating the laundry drum
  • the controller is designed to activate the drum drive for rotating the laundry drum during the basic time segment and/or during the wetting period, in particular to rotate the laundry drum alternately in both directions of rotation .
  • the laundry care appliance has a drum drive for rotating the laundry drum
  • the controller is designed to activate the drum drive for rotating the laundry drum at an ejection speed during an expulsion time segment following the wetting time segment in order to expel washing liquid bound to the laundry.
  • the laundry care appliance has a fill level sensor for detecting a fill level of washing liquid in the tub, and the controller is designed to end the expulsion time period when the detected fill level of washing liquid exceeds a fill level threshold value, and/or the controller is designed while to activate the washing liquid supply device for supplying a post-wetting quantity of washing liquid into the tub in a post-wetting period following the expulsion period if the detected level of washing liquid after the expulsion period falls below a level threshold value.
  • the completion of the wetting phase can be effectively monitored as a function of the fill level detected by the fill level sensor. If the recorded fill level exceeds the fill level threshold value, the expulsion time section can be ended immediately by the controller.
  • the expulsion period can also be terminated by the controller after a predetermined period of time has elapsed.
  • the controller recognizes that possibly not enough washing liquid has been supplied to the laundry and allows the laundry to be re-wetted by supplying the re-wetting quantity of washing liquid.
  • the controller is designed to activate the drum drive for rotating the laundry drum and/or the pump for pumping around washing liquid during the post-wetting time segment.
  • the controller is designed to end or repeat the post-wetting period as a function of a level of washing liquid in the tub that is detected after the post-wetting period.
  • the weight determination device comprises a weighing system for weighing the laundry accommodated in the laundry drum, a device for detecting a deflection of an oscillating system of the laundry drum, and/or a power detection element for detecting an electrical power value of a drum drive of the laundry drum.
  • the object of the invention is achieved by a method for wetting laundry in a laundry care appliance, the laundry care appliance having a tub for holding washing liquid, a washing liquid supply device for supplying washing liquid into the tub, a laundry drum for holding laundry, the laundry drum is arranged in the tub, has a weight determining device for determining a weight of the laundry accommodated in the laundry drum, and a controller which is connected to the washing liquid supply device and the weight determining device in terms of control technology, the method comprising the following method steps, determining a weight of the laundry received by the weight determination device during a determination period of time, activating the washing liquid supply device for supplying a basic quantity of washing liquid liquid into the tub by the controller during a base period following the determination period, and activating the washing liquid supply device for supplying a wetting amount of washing liquid into the tub by the controller during a wetting period following the base period, the controller determining the wetting amount as a function of the weight of the laundry received in the laundry drum.
  • the laundry care appliance has a drum drive for rotating the laundry drum
  • the method has the additional method step of activating the drum drive by the controller during an expulsion time segment that follows the wetting period, in order to rotate the laundry drum at an expulsion speed and to Drive out washing liquid bound to laundry.
  • the laundry care appliance has a fill level sensor for detecting a fill level of washing liquid in the tub, the method comprising the following method step, deactivating the drum drive by the controller in order to end the expulsion period of time if the detected fill level of washing liquid exceeds a fill level threshold value , or wherein the method comprises the following method step activating the washing liquid supply device by the controller during a post-wetting period following the expulsion period in order to supply a post-wetting quantity of washing liquid into the tub if the detected level of washing liquid after the expulsion period falls below a level threshold value.
  • the wetting period can be ended either when the washing is completely wetted, or when the washing is not yet completely wetted, a further quantity of washing liquid can be added during the subsequent post-wetting period can be added to the laundry for re-wetting.
  • the base amount of washing liquid supplied to the tub during the base time period is determined independently of the weight of the laundry held in the laundry drum.
  • inventions identified as advantageous embodiments for the laundry care appliance according to the first aspect are also advantageous embodiments for the method according to the second aspect.
  • the laundry care appliance 100 includes a dispensing tray 101 into which the laundry care substance, in particular detergent or other liquid substances, can be filled.
  • the laundry care appliance 100 has an appliance housing 102 .
  • the laundry care appliance 100 includes an appliance door 103 for loading the laundry care appliance 100 with laundry.
  • the laundry care appliance 100 has a tub 105 for holding washing liquid, and has a laundry drum 107 for holding laundry.
  • the laundry drum 107 is arranged in the tub 105 .
  • the laundry care appliance 100 has a drum drive 109 for rotating the laundry drum 107 .
  • the tub 105 has a drain opening 111 .
  • the laundry care appliance 100 has a feed element 113 .
  • the discharge opening 111 is fluidically connected to the feed element 113 by a liquid line 115, wherein in the liquid line 115 a pump 117 for pumping washing liquid through the liquid line 115 is arranged.
  • the pump 117 pumps washing liquid through the drain opening 111 from the tub 105 during an in 2 not shown pumping pump into the liquid line 115 and the washing liquid through the liquid line 115 and through the feed element 113 to the tub 105 and the laundry drum 107 out again.
  • the washing liquid can be pumped around effectively through the liquid line 115 during a laundry care process and can be fed back to the laundry in the laundry drum 107 .
  • the laundry care appliance 100 has a washing liquid supply device 118-1 for supplying washing liquid into the tub 105, the washing liquid supply device 118-1 being connected to the tub 105 by a supply line 118-2.
  • the washing liquid supply device 118-1 comprises an in 2 flushing tray 101, not shown, of the laundry care appliance 100 and/or an in 2 non-illustrated fresh water connection of the laundry care appliance 100, wherein the controller 119 is designed to activate a wash suds feed via the dispensing bowl 101 and/or the fresh water connection in order to feed wash suds and/or fresh water into the laundry drum 107 as washing liquid.
  • the laundry care appliance 100 also includes a controller 119 which is connected to the pump 117, which is connected to the drum drive 109 and to the washing liquid supply device 118-1 by a control connection 121 in each case.
  • the laundry care appliance 100 also has a weight determination device 123 for determining the weight of the laundry accommodated in the laundry drum 107, in particular a weight detection device 123 for detecting the weight of the laundry accommodated in the laundry drum 107, i.e. for measuring the weight of the laundry in the laundry drum 107 by sensors.
  • the one in the 2 The illustrated weight determination device 123 or weight detection device 123 has in particular a power detection element 123-1 for detecting an electrical power value of the drum drive 109.
  • the power detection element 123-1 is designed to detect a torque-generating current intensity and/or an electrical power consumption of the drum drive 109 as an electrical power value of the drum drive 109.
  • the weight determination device 123, in particular the power detection element 123-1 is designed to determine a weight of the laundry received in the laundry drum 107 as a function of the detected electrical power value of the drum drive 109.
  • the power detection element 123 - 1 is arranged in the controller 119 .
  • the power detection element 123-1 can be arranged in particular outside of the controller 119, as in FIG 2 is not shown.
  • the power detection element 123 - 1 can be arranged in particular within the drum drive 109 .
  • the weight determining device 123 can alternatively or additionally comprise a weighing system for weighing the laundry accommodated in the laundry drum 107 and/or alternatively or additionally comprise a device for detecting a deflection of an oscillating system of the laundry drum 107.
  • the weight determination device 123 can only include an input element of the laundry care appliance 100, via which the user can enter the weight of the laundry without the weight determination device 123 measuring the weight of the laundry 107 in the laundry drum 107 itself.
  • the laundry care appliance 100 also includes an outlet line 125 which is fluidically connected to the liquid line 115 .
  • the pump 117 is formed during an in 2 Not shown pumping out washing liquid through the drain opening 111 from the tub 105, through the liquid line 115 and through the outlet line 125 from the laundry care appliance 100 to be pumped.
  • the laundry care appliance 100 also has, in particular, an in 2 Level sensor not shown for detecting a level of washing liquid in the tub 105 on.
  • the laundry care appliance 100 also has, in particular, a 2 heating device, not shown, for heating the washing liquid contained in the tub 105 .
  • FIG. 3 shows a graphic representation of laundry wetting processes according to a first, second, third and fourth exemplary embodiment.
  • the first embodiment A includes rows A1, A2, and A3
  • the second embodiment B includes rows B1, B2, and B3
  • the third embodiment C includes rows C1, C2, and C3
  • the fourth embodiment D includes rows D1, D2 and D3.
  • FIG. 3 shows, according to the first, second, third and fourth exemplary embodiments A, B, C and D, a time representation of a rotational speed of the laundry drum 107 (see the respective first curves 141 in lines A1, B1, C1 and D1), one through a washing liquid supply device 118 -1 amount of washing liquid supplied to the tub 105 (see the respective second curves 143 in lines A2, B2, C2 and D2) and an activation of the pump 117 for pumping around washing liquid (see the respective third curves 145 in lines A3, B3 , C3 and D3) plotted along the axis of ordinates 127 versus time indicated along the axis of abscissas 129.
  • the in 3 laundry wetting processes illustrated according to the first, second, third and fourth exemplary embodiments A, B, C and D each have a determination time section 132, a basic time section 133 following determination time section 132, a wetting time section 135 following basic time section 133, and a wetting time section following the wetting time section 135 subsequent expulsion period 137.
  • Only the fourth exemplary embodiment D additionally has a post-wetting time section 139 following the expulsion time section 137 .
  • the one in the 3 The first curves 141 shown show the progression over time of the speed of a laundry drum 107 rotated by a drum drive 109.
  • the weight determination device 123 in particular the power detection element 123-1, is designed on the basis of a detected electrical power value of the drum drive 109 to calculate a weight of the Laundry drum 107 to determine laundry received (see rows A1, B1, C1 and D1).
  • the base time section 133 follows the determination time section 132 .
  • the controller 119 activates the wash liquid supply means 118-1 during the base period 133 to supply a base quantity of wash liquid into the tub 105 (see lines A2, B2, C2 and D2).
  • the one in the 3 The second curves 143 shown show the course over time of the washing liquid fed into the tub 105 by the washing liquid feed device 118-1.
  • the supply of the basic amount of washing liquid during the basic time segment 133 is used in particular to introduce laundry care substance from the dispensing tray 101 into the tub 105 and also ensures that the laundry held in the laundry drum 107 is initially wetted with washing liquid.
  • the basic quantity of washing liquid supplied to the tub 105 during the basic time segment 133 is determined, in particular, independently of the weight of the laundry accommodated in the washing drum 107 .
  • the controller 119 also activates the pump 117 for circulating washing liquid during the base period 133 (see lines A3, B3, C3 and D3).
  • the wetting of the laundry is further improved by pumping the washing liquid around.
  • the third curves 145 shown here show the course over time of the water pumped out of the tub 105 through the drain opening 111 by the pump 117 and through the inlet element 113 to the tub 105 washing liquid supplied again in the context of a pumping process.
  • the wetting time section 135 follows the base time section 133 .
  • the controller 119 activates the washing liquid supply device 118-1 to supply a wetting quantity of washing liquid into the tub 105 (see lines A2, B2, C2 and D2), with the controller 119 being designed to adjust the wetting quantity as a function of the determined weight of the laundry received in the laundry drum 107 .
  • the wetting quantity of washing liquid supplied to the tub 105 during the wetting time segment 135 can thus be optimally adapted to the weight of the laundry accommodated in the laundry drum 107 determined by the weight determination device 123, in particular power detection element 123-1.
  • the laundry care appliance 100 has a filling level sensor which is designed to detect a filling level of washing liquid in the tub 105 .
  • the controller 119 is designed in particular to end the wetting time section 135 when the detected fill level of washing liquid exceeds a liquid threshold value.
  • Exceeding the filling level threshold value by the detected filling level indicates advantageous wetting of the laundry, since the detected filling level or the filling level threshold value of washing liquid in the tub 105 is directly related to the absorbency of the laundry, the controller 119 can by detecting the level of the washing liquid determine the textile types of the laundry. Thus, an end point for the wetting period 135 can be effectively established.
  • the smaller amount of laundry in the laundry drum 107 in the first exemplary embodiment A compared to the second exemplary embodiment B results in a shorter wetting period 135 compared to the second exemplary embodiment B (see exemplary embodiments A and B), since due to the more favorable drum conditions allow the laundry to be moistened faster in embodiment A than in embodiment B.
  • the laundry drum 107 is rotated during the wetting time segment 135, in particular rotated alternately in both directions of rotation (see lines A1, B1, C1 and D1).
  • the expulsion time section 137 follows the wetting time section 135 .
  • the controller 119 activates the drum drive 109 during the ejection time segment 137 in order to close the laundry drum 107 at an ejection speed Rotate to expel washing liquid bound to the laundry.
  • the amount of washing liquid released in this way can be determined in particular by means of a level sensor for detecting the level of washing liquid in the tub 105 .
  • the controller 119 is designed to determine an expulsion quantity of washing liquid expelled from the laundry during the expulsion time segment 137 as a function of the detected fill level of washing liquid.
  • controller 119 is designed to end the expulsion time section 137 according to the second exemplary embodiment B when the detected filling level of washing liquid exceeds a filling level threshold value (see line B2).
  • the controller 119 is alternatively designed according to the first exemplary embodiment A to activate the washing liquid supply device 118-1 for supplying a further quantity of washing liquid into the tub 105 (see line A2).
  • washing liquid By supplying the further amount of washing liquid according to the first exemplary embodiment A, it can be ensured that after the process there is a minimum amount of washing liquid in the tub 105 which is sufficient so that a heating element arranged on the underside of the tub 105 is sufficiently covered with washing liquid.
  • This in 3 illustrated third exemplary embodiment C differs from that in 3 illustrated second embodiment B by a larger amount of laundry in the laundry drum 107, whereby the duration of the wetting period 135 in the third embodiment C increases.
  • pump 117 for pumping around the washing liquid is activated at the same time as washing liquid supply device 118-1 for supplying washing liquid, so that the washing liquid supplied is pumped around at the same time by pump 117 and is thus injected centrally into the laundry.
  • the pump 117 is only activated with a time delay after the activation of the washing liquid supply device 118-1, so that the washing liquid supplied is first supplied to the laundry in the laundry drum 107 via the drum casing before pumping takes place, so that the point of impact of the the laundry conducted washing liquid is varied.
  • This in 3 fourth exemplary embodiment D illustrated reveals a further case in which there is a low level of washing liquid in the tub 105 after the end of the expulsion time segment 137, for example because a large amount of laundry and/or particularly absorbent laundry is present in the laundry drum 107.
  • the expulsion time section 137 is followed by an additional post-wetting time section 139, during which the controller 119 uses the washing liquid supply device 118-1 to supply a post-wetting quantity of washing liquid into the tub 105 activated when the detected fill level of washing liquid falls below a fill level threshold value after the expulsion time section 137 .
  • the controller 119 is designed to activate the drum drive 109 for rotating the laundry drum 107 and/or the pump 117 for pumping around washing liquid during the post-wetting time segment 139 (see lines D1 and D3).
  • the amount of washing liquid required for the washing process is determined directly as a function of the weight of the laundry in the laundry drum 107 determined by the weight determination device 123, in particular the power detection element 123-1.
  • the load-specific quantity of washing liquid can be provided at the beginning of the wetting phase, resulting in the following advantages.
  • the wetting phase is shorter, which means that the washing phase that follows the wetting phase can be started earlier, which means that the washing performance can be increased during the washing phase with the same program duration, or the program duration can be shortened with the same washing performance during the washing phase.
  • washing liquid can be heated at an earlier time in the program, whereby an improvement in washing performance can be ensured.
  • FIG. 4 shows a schematic representation of a method for wetting laundry in a laundry care appliance.
  • the method 200 comprises the determination 201 of a weight of the laundry received in the laundry drum 107 by the weight determination device 123, 123-1 during a determination time segment 132.
  • the method 200 comprises the activation 203 of the washing liquid supply device 118-1 for supplying a basic quantity of washing liquid into the tub 105 and the pump 117 for pumping around washing liquid by the controller 119 during a basic time period 133 following the determination time period 132,
  • the method 200 comprises, as a third method step, the activation 205 of the washing liquid supply device 118-1 for supplying a wetting quantity of washing liquid into the tub 105 by the controller 119 during a wetting period 135 following the basic period 133, with the controller 119 determining the wetting quantity as a function of the weight of the laundry received in the laundry drum 107 is determined.
  • the method 200 includes the activation 207 of the drum drive 109 by the controller 119 during an expulsion time section 137 following the wetting time section 135 in order to rotate the laundry drum 107 at an expulsion speed and to expel washing liquid bound to the laundry.
  • the method 200 includes, as an optional fifth method step, the deactivation 209-1 of the drum drive 109 by the controller 119 in order to end the expulsion time section 137 if the detected fill level of washing liquid exceeds a fill level threshold value, or the method 200 includes, as an optional sixth method step, the activation 209 -2 of the washing liquid supply device 118-1 by the controller 119 during a post-wetting period 139 following the expulsion period 137, in order to supply a post-wetting quantity of washing liquid into the tub 105 if the detected level of washing liquid after the expulsion period 137 falls below a threshold value.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP22155821.6A 2021-03-09 2022-02-09 Appareil d'entretien du linge doté d'une commande Active EP4060108B1 (fr)

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DE102023211567A1 (de) * 2023-11-21 2025-05-22 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

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WO2006097362A1 (fr) 2005-03-17 2006-09-21 BSH Bosch und Siemens Hausgeräte GmbH Processus de mouillage du linge dans un lave-linge commande par programme
US20100325815A1 (en) * 2009-06-30 2010-12-30 Samsung Electronics Co., Ltd. Washing machine and control method thereof
EP2957670A1 (fr) * 2014-06-18 2015-12-23 Miele & Cie. KG Procédé pour laver du linge en état humide
EP3363942A1 (fr) * 2017-02-16 2018-08-22 Miele & Cie. KG Commande d'alimentation en eau et lave-linge automatique
EP3739100A1 (fr) * 2019-05-17 2020-11-18 BSH Hausgeräte GmbH Appareil d'entretien de linge doté d'une commande

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Publication number Priority date Publication date Assignee Title
WO2014045548A1 (fr) 2012-09-19 2014-03-27 パナソニック株式会社 Lave-linge
DE102016212490A1 (de) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102017103196A1 (de) 2017-02-16 2018-08-16 Miele & Cie. Kg Wasserzulaufsteuerung für einen Waschautomaten und Waschautomat
DE102019207239A1 (de) * 2019-05-17 2020-11-19 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
CN112281405B (zh) * 2019-07-10 2024-05-24 青岛海尔洗衣机有限公司 一种洗衣机控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006097362A1 (fr) 2005-03-17 2006-09-21 BSH Bosch und Siemens Hausgeräte GmbH Processus de mouillage du linge dans un lave-linge commande par programme
US20100325815A1 (en) * 2009-06-30 2010-12-30 Samsung Electronics Co., Ltd. Washing machine and control method thereof
EP2957670A1 (fr) * 2014-06-18 2015-12-23 Miele & Cie. KG Procédé pour laver du linge en état humide
EP3363942A1 (fr) * 2017-02-16 2018-08-22 Miele & Cie. KG Commande d'alimentation en eau et lave-linge automatique
EP3739100A1 (fr) * 2019-05-17 2020-11-18 BSH Hausgeräte GmbH Appareil d'entretien de linge doté d'une commande

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CN115045077A (zh) 2022-09-13
DE102021202229A1 (de) 2022-09-15

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