EP4022119B1 - Appareil de soin du linge équipé d'une unité de commande - Google Patents

Appareil de soin du linge équipé d'une unité de commande Download PDF

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Publication number
EP4022119B1
EP4022119B1 EP20757844.4A EP20757844A EP4022119B1 EP 4022119 B1 EP4022119 B1 EP 4022119B1 EP 20757844 A EP20757844 A EP 20757844A EP 4022119 B1 EP4022119 B1 EP 4022119B1
Authority
EP
European Patent Office
Prior art keywords
laundry
drum
speed
washing liquid
controller
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.)
Active
Application number
EP20757844.4A
Other languages
German (de)
English (en)
Other versions
EP4022119A1 (fr
Inventor
Stefan Wetzel
Thomas Schneider
Christian TILL
Wolfram SCHUBERT
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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Publication date
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Publication of EP4022119A1 publication Critical patent/EP4022119A1/fr
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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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
    • 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
    • D06F2103/68—Operation mode; Program phase
    • 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
    • D06F2105/46—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
    • D06F33/34—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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/16—Imbalance
    • 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

Definitions

  • the present invention relates to a laundry care appliance with a control system.
  • a conventional laundry care device different methods are used to wet the laundry held in the washing drum.
  • the rotating washing drum is immersed in washing liquid which is held in the washing tub of the laundry care device in order to enable the laundry to be wetted.
  • EP 2 623 660 A2 discloses a washing machine and a method for operating the washing machine during a spin cycle.
  • the object underlying the invention is to provide a laundry care appliance in which a complete wetting of the laundry held in the laundry drum is ensured during a laundry care process.
  • the object of the invention is achieved by a laundry care device, with a tub for receiving washing liquid, a laundry drum for receiving laundry, wherein the laundry drum is arranged in the tub, an oscillation system which is designed to oscillately mount the laundry drum and the tub in the laundry care device, a drum drive for rotating the laundry drum, a Washing liquid supply device for supplying washing liquid to the laundry drum during a washing period, and a controller for controlling the drum drive and the washing liquid supply device, wherein the controller is designed to activate the drum drive during a drum period of the washing period in order to rotate the laundry drum at a drum speed in order to form a laundry tunnel within the laundry received in the laundry drum, wherein the drum speed is greater than a detachment speed of the laundry drum and less than a resonance speed of the laundry drum, wherein the detachment speed is a maximum speed of the laundry drum at which the laundry received in the laundry drum detaches from the laundry drum, wherein the resonance speed is a speed of the laundry drum at which an oscillation frequency
  • a laundry tunnel is created in the rotating laundry drum by centrifugal forces acting on the laundry, which presses the laundry held in the rotating laundry drum against the laundry drum, thereby forming the laundry tunnel.
  • the laundry tunnel is understood to be the inner area in the laundry drum loaded with laundry in which there is no laundry, the inner area being at least partially surrounded, in particular completely, by laundry resting against a casing of the laundry drum.
  • a hollow space is created within the laundry batch, which is called a laundry tunnel.
  • rotating the laundry drum at a drum speed that is lower than the resonance speed and higher than the release speed is sufficient to ensure that the laundry is completely placed on the laundry drum and to form a laundry tunnel.
  • the drum speed is higher than the release speed prevents the laundry from detaching from the laundry drum and collapsing again. Since the release speed is the maximum speed of the laundry drum at which the laundry detaches from the laundry drum, exceeding the release speed with the drum speed ensures that the laundry clings to the laundry drum due to the centrifugal force acting on it.
  • the drum speed is lower than the resonance speed, it is ensured that, in the event of a subsequent wetting process, washing liquid injected into the laundry tunnel is not immediately expelled radially, but remains in the laundry for a sufficient wetting period.
  • the vibrations of the laundry care device can be reduced, as resonant rocking of the laundry drum or the tub is prevented by the oscillating bearing at the resonance speed, and the energy consumption of the laundry care device can also be reduced.
  • the resonance speed is between 100 rpm and 300 rpm.
  • the drum speed is below 100 rpm.
  • the shearing speed is below 80 rpm.
  • a laundry care appliance is a device that is used for laundry care, such as a washing machine, a washer-dryer or a tumble dryer.
  • a laundry care appliance is understood to be a household laundry care appliance.
  • a laundry care appliance that is used in the used in household management and with which laundry is treated in normal household quantities.
  • the controller is designed to activate the drum drive during a maximum time period of the washing period before the drum time period in order to rotate the laundry drum at a maximum speed, wherein the maximum speed is greater than the resonance speed, wherein the controller is in particular designed to activate the washing liquid supply device during the maximum time period in order to supply washing liquid to the laundry accommodated in the laundry drum.
  • washing liquid supply device supplies washing liquid to the laundry in particular during the maximum time period, effective wetting of the laundry can be ensured during the formation of the laundry tunnel during the maximum time period and also during the subsequent drum section.
  • the laundry care appliance has a weight sensor which is designed to detect a weight of laundry accommodated in the laundry drum, wherein the controller is designed to activate the drum drive during the maximum time period in order to rotate the laundry drum at a maximum speed if the weight of the laundry detected by the weight sensor exceeds a weight threshold value, and/or wherein the controller is designed to directly activate the drum drive during the drum time period, in particular without previously activating the drum drive during the maximum time period, in order to rotate the laundry drum at a drum speed if the weight of the laundry detected by the weight sensor exceeds a weight threshold value, and/or wherein the controller is designed to directly activate the drum drive during the drum time period, in particular without previously activating the drum drive during the maximum time period, in order to rotate the laundry drum at a drum speed if the weight of the laundry detected by the The weight detected by the weight sensor falls below a weight threshold value, whereby the weight threshold value corresponds in particular to half the maximum laundry load of the washing drum.
  • the control first carries out the maximum time period before the speed of the laundry drum can then be reduced to the drum speed during the drum time period in order to maintain the laundry tunnel.
  • the weight sensor is a weighing sensor which is designed to weigh the weight of the laundry drum in order to detect the weight of the laundry held in the laundry drum.
  • the weight sensor is a sensor which is designed to detect a lowering of the oscillation system within the laundry care appliance in order to detect the weight of the laundry held in the laundry drum.
  • the weight sensor is a sensor for detecting an electrical power value of the drum drive in order to detect the weight of the laundry held in the laundry drum.
  • the controller is designed to activate the drum drive during a pre-time period of the washing period before the drum time period, in particular before the maximum time period, in order to rotate the laundry drum at a pre-drum speed, wherein the pre-drum speed is greater than the release speed and less than the resonance speed of the laundry drum, and wherein the controller is designed in particular to activate the washing liquid supply device during the pre-time period in order to supply washing liquid into the rotating laundry drum and to pre-wet the laundry in the laundry drum.
  • the laundry is advantageously pre-wetted by rotating the laundry drum at the pre-drum speed and by supplying washing liquid through the washing liquid supply device, so that the pre-wetted laundry then forms a laundry tunnel more easily during the maximum time period due to the increased weight of the laundry.
  • the pre-drum speed corresponds to the drum speed or the pre-drum speed differs from the drum speed.
  • the controller is designed to end the pre-time period when a level sensor arranged in the tub detects a level of washing liquid that falls below a level threshold value, and/or the controller is designed to end the pre-time period when a power detection element, which is designed to detect an electrical power value of a pump of the washing liquid supply device of the laundry care appliance, detects an electrical power value of the pump that falls below an electrical reference power value.
  • control system is designed to end the pre-time period when an imbalance in the oscillation system detected by an imbalance sensor of the laundry care device no longer changes.
  • control is designed to stop the rotation of the laundry drum during the pre-time period and/or to change a direction of rotation of the rotating laundry drum in order to redistribute the laundry in the laundry drum during the pre-time period, so that, for example, items of laundry that have not previously been wetted are moved to a front area of the laundry drum so that they can then also be wetted when the pre-time period is continued.
  • the laundry care appliance has an unbalance sensor, in particular an acceleration sensor or position sensor, which is designed to detect an unbalance of the oscillation system, wherein the controller is designed to end the pre-time period when the unbalance sensor detects an unbalance of the oscillation system.
  • an unbalance sensor in particular an acceleration sensor or position sensor, which is designed to detect an unbalance of the oscillation system, wherein the controller is designed to end the pre-time period when the unbalance sensor detects an unbalance of the oscillation system.
  • the unbalance sensor is in particular an acceleration sensor which detects the acceleration of the oscillating system in all three spatial directions, or the unbalance sensor is in particular a position sensor which detects the displacement of the oscillating system in all three spatial directions, wherein the respective accelerations or the displacement in the three spatial directions are compared with corresponding reference values in order to detect an unbalance of the oscillating system.
  • control is designed to activate the drum drive during at least one further drum time period of the washing period following the drum time period in order to rotate the laundry drum at a further drum speed, wherein the further drum speed is lower than the resonance speed of the laundry drum, and that the control is in particular designed to activate the drum drive during the at least one further drum time period.
  • the laundry tunnel within the laundry can be advantageously maintained by rotating the laundry drum at the additional drum speed, so that further washing liquid can be supplied in order to advantageously wet the laundry.
  • the at least one further drum time period comprises a plurality of drum time periods, so that washing liquid can be supplied to the laundry during a plurality of further filling steps.
  • the controller is designed to activate the drum drive between the drum time period and the at least one further drum time period, and/or between successive further drum time periods, in order to reduce the drum speed and/or the further drum speed, in particular to reduce it to 0 rpm.
  • the further drum speed is lower than the resonance speed and lower than the release speed of the laundry drum, or the further drum speed is lower than the resonance speed and higher than the release speed of the laundry drum.
  • the amount of additional drum speed can be advantageously selected depending on the laundry load, the degree of wetting of the laundry, and/or the laundry care program selected by the user.
  • control is designed to activate the drum drive during a further maximum time period following the at least one further drum time period in order to rotate the laundry drum at a further maximum speed, wherein the further maximum speed is greater than the resonance speed.
  • control can determine an initial amount of washing liquid depending on the amount of laundry loaded into the laundry care appliance, depending on the type of fabric in the laundry and/or depending on the program selected in the laundry care appliance, with the initial amount of washing liquid being supplied by the washing liquid supply device before the drum time period, in particular before the laundry pre-time period. This allows the number of subsequent filling steps to be reduced, which leads to a shorter program duration and possibly to a lower number of resonance passes.
  • the controller is designed to activate the drum drive during a braking period following the drum period in order to rotate the laundry drum at a braking speed, wherein the braking speed is lower than the drum speed and higher than the release speed, wherein the controller is designed to activate the washing liquid supply device at least once during the braking period in order to supply washing liquid to the laundry in the laundry drum at least once.
  • control is designed to determine the number of activations of the washing liquid supply device and/or the amount of washing liquid supplied during the braking period as a function of a weight of the laundry accommodated in the laundry drum detected by a weight sensor of the laundry care device, and/or as a function of a laundry care program selected by a user of the laundry care device, and/or as a function of a type of textile of the laundry determined by a textile detection device, and/or as a function of a saturation of the laundry with washing liquid determined by a device for determining the saturation of the laundry.
  • the controller is designed to interrupt the deceleration period during an intermediate period in order to activate the drum drive to rotate the laundry drum at the drum speed in order to form a laundry tunnel again within the laundry accommodated in the laundry drum, and/or the controller is designed to interrupt the deceleration period during an intermediate period in order to activate the drum drive to rotate the laundry drum at a further maximum speed.
  • the washing liquid supply device has a pump which is designed to pump washing liquid from the tub and to supply the washing liquid again to the laundry in the laundry drum, wherein the control is designed to activate the pump during the washing period in order to supply washing liquid to the laundry in the laundry drum.
  • the washing liquid supply device can be advantageously controlled by activating the pump through the control system to supply the washing liquid into the laundry held in the washing drum.
  • the washing liquid supply device comprises a supply element, in particular an injection nozzle, through which the pumped washing liquid can advantageously be injected into the washing drum, in particular into a laundry tunnel formed in the washing drum.
  • a further washing liquid supply device in particular fresh water supply device, is connected to the suds container by a supply line, wherein the control is designed to activate the further washing liquid supply device during the washing period in order to supply washing liquid, in particular fresh water, to the suds container.
  • the control can ensure that a sufficient amount of washing liquid is present in the tub during the washing period in order to ensure effective wetting of the laundry.
  • the object according to the invention is achieved by a method for caring for laundry in a laundry care appliance, wherein the laundry care appliance has a tub for receiving washing liquid, a laundry drum for receiving laundry, wherein the laundry drum is arranged in the tub, an oscillation system which is designed to swingably mount the laundry drum and the tub in the laundry care appliance, a drum drive for rotating the laundry drum, a washing liquid supply device for supplying washing liquid to the laundry drum during a washing period, and a controller for controlling the drum drive and the washing liquid supply device, wherein the method has the following method steps, activating the drum drive during a drum period of the washing period by the controller in order to Rotating the laundry drum at a drum speed to form a laundry tunnel within the laundry received in the laundry drum, the drum speed being greater than a detachment speed of the laundry drum and less than a resonance speed of the laundry drum, the detachment speed being a maximum speed of the laundry drum at which the laundry received in the laundry drum detaches from the laundry drum, and the resonance speed
  • the method according to the second aspect is carried out with small load quantities.
  • the method comprises activating the drum drive during a maximum time period of the washing period before the drum time period by the controller in order to rotate the laundry drum at a maximum speed, the maximum speed being greater than the resonance speed.
  • the laundry tunnel can thus be built up during the maximum time period and maintained during the subsequent drum time period.
  • inventions characterized 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.
  • Fig.1 shows a schematic view of a general laundry care appliance 100, such as a washing machine.
  • the laundry care appliance 100 comprises a dispenser tray 101 into which detergent or other liquid substances can be poured.
  • the laundry care appliance 100 has an appliance housing 102.
  • the laundry care appliance 100 comprises an appliance door 103 for loading the laundry care appliance 100 with laundry.
  • Fig. 2 shows a schematic view of a laundry care device with a control system.
  • the laundry care device 100 has a tub 105 for holding washing liquid, and has a laundry drum 107 arranged in the tub 105 for holding laundry.
  • the tub 105 and the laundry drum 107 arranged in the tub 105 are connected to a Fig. 2 only schematically shown device housing 102 of the laundry care device 100.
  • the tub 105 has a drain opening 111.
  • the laundry care device 100 has a feed element 113.
  • the drain opening 111 is fluidically connected to the feed element 113 by a liquid line 115, wherein a pump 117 for pumping washing liquid through the liquid line 115 is arranged in the liquid line 115.
  • the pump 117 can pump washing liquid through the drain opening 111 from the tub 105 during a Fig.2 pumping process (not shown) into the liquid line 115 and feed the pumped-out washing liquid again through the liquid line 115 and through the feed element 113 to the tub 105 and the laundry drum 107.
  • the washing liquid can be effectively pumped through the liquid line 115 during a laundry care process and fed again to the laundry in the laundry drum 107.
  • liquid line 115, the pump 117 and the supply element 113 are designed as a washing liquid supply device 118-1 for supplying washing liquid into the laundry drum 107.
  • the washing liquid supply device 118-1 in particular the supply element 113, is designed to direct the washing liquid into a laundry tunnel formed within the laundry in the rotating laundry drum 107.
  • the laundry care appliance 100 further comprises a controller 119 which is connected to the pump 117 through a first control connection 121 and which is connected to a drum drive 123 for rotating the laundry drum 107 through a second control connection 125.
  • the controller 119 is further connected by a third control connection 127 to a further washing liquid supply device 118-2 for supplying washing liquid into the laundry drum 107, wherein the further washing liquid supply device 118-2 is connected to the tub 105 by a supply line 129.
  • the further washing liquid supply device 118-2 comprises a Fig.2 not shown dispensing tray 101 of the laundry care appliance 100 and/or a Fig.2 not shown fresh water connection of the laundry care appliance 100, wherein the controller 119 is designed to activate a washing liquor inlet via the dispensing tray 101 and/or the fresh water connection in order to supply washing liquor and/or fresh water as washing liquid into the laundry drum 107.
  • the laundry care appliance 100 further comprises a power detection element 131 for detecting an electrical power value of the drum drive 123.
  • the power detection element 131 is designed to detect a torque-generating current and/or an electrical power consumption of the drum drive 123 as an electrical power value of the drum drive 123.
  • the laundry care appliance 100 further comprises an outlet line 128 which is fluidically connected to the liquid line 115.
  • the pump 117 is designed to pump liquid during a Fig.2 During a pumping process (not shown), washing liquid is pumped out of the tub 105 through the drain opening 111, through the liquid line 115 and through the outlet line 128 from the laundry care appliance 100.
  • Fig.3 shows a schematic representation of the supply of washing liquid into a laundry tunnel formed in the laundry drum.
  • a laundry drum 107 of the laundry care device 100 is shown, which is connected by a Fig.3 not shown drum drive 123 can be rotated about a rotation axis 132 in a first rotation direction 133-1 and/or second rotation direction 133-2.
  • An appliance door 103 of the laundry care appliance 100 is only shown in sections.
  • wetting of the laundry 135 held in the laundry drum 107 with washing liquid occurs most quickly when it occurs radially, in particular by pumping or centrally spraying washing liquid.
  • the formation of a laundry tunnel 137 is required, wherein the formation of the laundry tunnel 137 correlates with the centrifugal acceleration of the laundry 135 due to the rotation of the laundry drum 107.
  • an inflow 139 of washing liquid can be fed to the laundry tunnel 137 by a washing liquid feed device 118-1, in particular a feed element 113.
  • the washing liquid can radially wet the laundry 135 along a radial wetting direction 143 due to the centrifugal acceleration.
  • Fig.4 shows a graphical representation of a laundry care process according to a first embodiment.
  • Fig.4 shows a temporal representation of the rotational speed of the laundry drum 107 and an amount of washing liquid supplied to the laundry drum 107 by the washing liquid supply device 118-1, which are plotted along the ordinate axis 145 as a function of time, which is indicated along the abscissa axis 147.
  • the first curve 140-1 shown shows the temporal progression of the rotational speed of a laundry drum 107 rotated by a drum drive 123.
  • the controller 119 is designed to activate the drum drive 123 during a drum time period 153 of the washing period 149 in order to rotate the laundry drum 107 at a drum rotational speed 159, wherein the drum rotational speed 159 is greater than a release rotational speed 161 of the laundry drum 107 and wherein the drum rotational speed 159 is less than a resonance rotational speed 157 of the laundry drum 107.
  • the detachment speed 161 is a maximum speed of the laundry drum 107 at which the laundry 135 held in the laundry drum 107 detaches from the laundry drum 107.
  • the resonance speed 157 is a speed of the Laundry drum 107, in which an oscillation frequency of the oscillation system 109 corresponds to a natural oscillation frequency of the oscillation system 109.
  • drum speed 159 is greater than the release speed 161 at which the laundry 135 is released from the laundry drum 107, the rotation of the laundry drum 107 at the drum speed 159 ensures that the laundry 135 received in the laundry drum 107 rests against the laundry drum 107.
  • drum speed 159 is lower than the resonance speed 157, when the laundry drum 107 rotates at the drum speed 159, excessive pressing of the laundry 135 against the laundry drum 107 is avoided, so that an advantageous laundry tunnel 137 is formed in the laundry 135, or vibrations in the laundry care device 100 can be prevented, which occur when the speed of the laundry drum 107 reaches the resonance speed 157.
  • the second curve 140-2 shown shows the time course of a quantity of washing liquid supplied to the laundry drum 107 by the washing liquid supply device 118-1.
  • the controller 119 is designed to activate the washing liquid supply device 118-1 during the washing period 149 in order to supply washing liquid into the rotating laundry drum 107.
  • the reduced speed ensures that the washing liquid is not expelled too quickly by the centrifugal force acting on the laundry 135 and can therefore advantageously wet the laundry.
  • the supply of washing liquid during the drum time section 153 is possible in particular with a laundry load which is less than half the maximum laundry load of the laundry drum 107, since with such a small laundry load, a laundry tunnel 137 is already formed when the laundry drum 107 rotates at the drum speed 159, which is sufficient for effective wetting of the laundry 135.
  • FIGS. 5a, 5b and 5c show graphical representations of a laundry care process according to a second, third and fourth embodiment, respectively.
  • the washing period 149 comprises, in addition to the drum period 153, a maximum period 151 beforehand.
  • the controller 119 of the laundry care appliance 100 is designed to activate the drum drive 123 during the maximum period 151 in order to rotate the laundry drum 107 at a maximum speed 155, wherein the maximum speed 155 is greater than the resonance speed 157 of the laundry drum 107.
  • the speed of the laundry drum 107 is reduced to the drum speed 159 and washing liquid is fed through the washing liquid feed device 118-1 into the laundry tunnel 137 formed in order to advantageously wet the laundry 135.
  • the third embodiment shown corresponds to the one in Fig. 5a illustrated second embodiment except that the washing period 149 has a preliminary time period 163 in addition to the drum time period 153 and the maximum time period 151.
  • the controller 119 activates the drum drive 123 to rotate the laundry drum 107 at a pre-drum speed 165, wherein the pre-drum speed 165 is greater than the release speed 161 and less than the resonance speed 157 of the laundry drum 107.
  • the washing liquid supply device 118-1 already supplies washing liquid to the laundry 135 in the laundry drum 107 during the preliminary time period 163 in order to ensure effective pre-wetting of the laundry 135, and that the washing liquid supply device 118-1 also supplies washing liquid to the laundry 135 during the maximum time period 151 and the drum time period 153.
  • the fourth embodiment shown shows a sixth curve 140-6, which shows a rotational speed of a laundry drum 107 during the washing period 149, wherein the washing period 149, in addition to the maximum time period 151, also has a detection time period 167 extending before the maximum time period 151.
  • the control 119 is designed to reduce the speed of the laundry drum 107 to a minimum speed 169, or to stop the rotation of the laundry drum 107 completely, or to change a direction of rotation 133-1, 133-2 of the laundry drum 107.
  • the minimum speed 169 is in particular lower than the release speed 161.
  • advantageous mixing of the laundry 135 can be ensured during the laundry care process in order to redistribute the laundry 135 in the laundry drum 107, for example during the pre-time section 163, so that, for example, items of laundry that have not previously been wetted are moved to a front area of the laundry drum 107 so that they can then also be wetted when the pre-time section 163 is continued.
  • Fig.6 shows a graphical representation of a laundry care process according to a fifth embodiment.
  • the seventh curve 140-7 shown shows the time course of the speed of the laundry drum 107 during the washing period 149.
  • the eighth curve 140-8 shown shows the time course of the washing liquid, in particular fresh water, supplied to the tub 105 by a further washing liquid supply device 118-2.
  • the ninth curve 140-9 shown shows the time course of the washing liquid fed into the laundry drum 107 by the washing liquid feed device 118-1.
  • the washing period 149 has a preliminary time section 163 during which the laundry drum 107 is rotated at a preliminary drum speed 165, the washing period 149 has a maximum time section 151 following the preliminary time section 163 during which the laundry drum 107 is rotated at a maximum speed 155, and the washing period 149 has a drum time section 153 following the maximum time section 151 during which the laundry drum 107 is rotated at a drum speed 159.
  • washing liquid in particular fresh water
  • washing liquid is supplied to the tub 105 by the further washing liquid supply device 118-2
  • washing liquid is supplied to the laundry tunnel 137 formed in the laundry drum 107 by the washing liquid supply device 118-1, so that the laundry 135 is evenly wetted.
  • the drum time period 153 is followed by a plurality of further drum time periods 153-2, during which the laundry drum 107 is rotated at a further drum speed 159-2, which is lower than the resonance speed 157 of the laundry drum 107. Since the laundry 135 is so strongly compressed after the end of the drum time period 153, as in illustrations b) and c) of the Fig.6 shown, further filling steps of washing liquid can be supplied by the washing liquid supply device 118-1 and/or by the further washing liquid supply device 118-2 without having to increase the speed of the laundry drum 107.
  • the further drum speed 159-2 can be in particular lower than the resonance speed 157 and higher than the separation speed 161 and/or the further drum speed 159-2 can be in particular lower than the resonance speed 157 and lower than the separation speed 161.
  • the further drum time periods 153-2 are followed by a further maximum time period 151-2, during which the laundry drum 107 is rotated at a further maximum speed 155-2 in order to compress the laundry 135 again and to distribute the washing liquid released thereby back into the laundry 135 in a subsequent further drum time period 153-2.
  • the controller 119 can determine an initial amount of washing liquid depending on a load of laundry 135 in the laundry care appliance 100, depending on a type of fabric of the laundry 135 and/or depending on a program selection of the laundry care appliance 100, wherein the initial amount of washing liquid is supplied by the washing liquid supply device 118-1 before the drum time section 153, in particular before the pre-time section 163 of the laundry 135. This allows the number of later filling steps to be reduced, which leads to a shorter program duration and possibly to a lower number of resonance passes.
  • Fig.7 shows a graphical representation of a laundry care process according to a sixth embodiment.
  • the washing period 149 has a preliminary time period 163, a maximum time period 151 and a drum time period 153, during which the washing liquid supply devices 118-1, 118-2 supply washing liquid to the laundry 135 in the laundry drum 107.
  • the speed of the laundry drum 107 is reduced to a deceleration speed 173 which is lower than the drum speed 159 but higher than the release speed 161, so that the laundry 135 continues to be held in a ring-shaped movement, but does not completely collapse, while the washing liquid supply devices 118-1, 118-2 supply washing liquid to the laundry 135 in the laundry drum 107.
  • control 119 is particularly designed to determine the amount of washing liquid supplied during the filling steps as a function of the dry load amount, the program option selected by the user, and/or a textile type determined by the laundry care appliance 100.
  • This has the advantage that a given number of filling steps can be carried out more quickly, which has an advantageous effect on the program duration if the laundry drum 107 is kept permanently at the braking speed 173 and does not have to be braked to zero before each filling step according to the Fig.6 illustrated embodiment.
  • the washing tunnel 137 can thus be kept for longer, so that it does not have to be rebuilt as often. When rebuilding, further resonance passes at the maximum speed 155 may be necessary and there is a risk of foam formation at higher speeds.
  • the advantage is that the number of further filling steps can be reduced and the amount of washing liquid supplied can be adapted to the conditions mentioned.
  • Fig.8 shows a graphical representation of a laundry care process according to a seventh embodiment.
  • Fig.7 In the sixth embodiment shown, after the drum time section 153 and the formation of the laundry tunnel 137 in the laundry drum 107, a plurality of filling steps for supplying washing liquid into the laundry tunnel 137 are carried out during the braking time section 171, wherein the washing liquid supply device 118-1 ensures that the washing liquid is completely absorbed by the laundry 135 in each case.
  • the controller 119 is designed to interrupt the braking time section 171 during an intermediate time section 175 in order to activate the drum drive 123 in order to rotate the laundry drum 107 at a further maximum speed 155-2. This can be particularly advantageous in order to ensure that the laundry tunnel 137 is formed again.
  • Fig.9 shows a schematic representation of a method for caring for laundry 135 in a laundry care appliance.
  • the method 200 comprises, as a first method step, activating the drum drive 123 during a drum time period 153 of the washing period 149 by the controller 119 in order to rotate the laundry drum 107 at a drum speed 159 in order to form a laundry tunnel 137 within the laundry 135 accommodated in the laundry drum 107, wherein the drum speed 159 is greater than a Detachment speed 161 of the laundry drum 107 and less than a resonance speed 157 of the laundry drum 107, wherein the detachment speed 161 is a maximum speed of the laundry drum 107 at which the laundry 135 held in the laundry drum 107 detaches from the laundry drum 107, and wherein the resonance speed 157 is a speed of the laundry drum 107 at which an oscillation frequency of the oscillation system 109 corresponds to a natural oscillation frequency of the oscillation system 109.
  • the method 200 comprises, as a second method step, the activation of the washing liquid supply device 118-1, 118-2 during the washing period 149 by the controller 119 in order to supply washing liquid into the laundry tunnel 137 formed within the laundry drum 107.
  • washing fluid at a lower speed has a beneficial effect on energy consumption, system load, vibration emissions and water absorption behavior.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Claims (15)

  1. Appareil d'entretien du linge (100) comprenant une cuve de lavage (105) pour recevoir un liquide de lavage, un tambour à linge (107) pour recevoir du linge, le tambour à linge (107) étant disposé dans la cuve de lavage (105), un système oscillant (109) qui est configuré pour supporter de façon oscillante le tambour à linge (107) et la cuve de lavage (105) dans l'appareil d'entretien du linge (100), un entraînement de tambour (123) pour faire tourner le tambour à linge (107), un moyen d'introduction de liquide de lavage (118-1, 118-2) destiné à introduire du liquide de lavage dans le tambour à linge (107) pendant une période de lavage (149), et une commande (119) pour commander l'entraînement de tambour (123) et le moyen d'introduction de liquide de lavage (118-1, 118-2),
    caractérisé en ce que :
    la commande (119) est configurée de façon à activer l'entraînement de tambour (123) durant une tranche de temps de tambour (153) de la période de lavage (149) pour faire tourner le tambour à linge (107) à une vitesse de rotation de tambour (159) afin de former un tunnel de linge (137) à l'intérieur du linge (135) reçu dans le tambour à linge (107),
    dans lequel le tunnel de linge (137) est produit dans le tambour à linge tournant (107) par des forces centrifuges agissant sur le linge, par lesquelles le linge reçu dans le tambour à linge (107) tournant est comprimé contre le tambour à linge (107) et au moyen de quoi le tunnel de linge (137) est formé, la vitesse de rotation de tambour (159) étant supérieure à une vitesse de rotation de détachement (161) du tambour à linge (107) et inférieure à une vitesse de rotation de résonance (157) du tambour à linge (107), et
    dans lequel la vitesse de rotation de détachement (161) est une vitesse de rotation maximale du tambour à linge (107) à laquelle le linge (135) reçu dans le tambour à linge (107) se détache du tambour à linge (107),
    dans lequel la vitesse de rotation de résonance (157) est une vitesse de rotation du tambour à linge (107) à laquelle une fréquence d'oscillation du système oscillant (109) équivaut à une fréquence propre d'oscillation du système oscillant (109), et en ce que
    la commande (119) est configurée pour activer le moyen d'introduction de liquide de lavage (118-1, 118-2) pendant la période de lavage (149), afin d'introduire du liquide de lavage dans le tunnel de linge (137) formé à l'intérieur du tambour à linge (107).
  2. Appareil d'entretien du linge (100) selon la revendication 1, caractérisé en ce que la commande (119) est configurée de manière à activer l'entraînement de tambour (123) pendant une tranche de temps maximale (151) de la période de lavage (149) avant la tranche de temps de tambour (153), afin de faire tourner le tambour à linge (107) à une vitesse de rotation maximale (155), la vitesse de rotation maximale (155) étant supérieure à la vitesse de rotation de résonance (157), dans lequel la commande (119) est configurée en particulier pour activer le moyen d'introduction de liquide de lavage (118-1, 118-2) pendant la tranche de temps maximale (1551), afin d'amener du liquide de lavage au linge (135) reçu dans le tambour à linge (107).
  3. Appareil d'entretien du linge (100) selon la revendication 1 ou 2, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un capteur de poids, qui est configuré pour détecter un poids du linge (135) reçu dans le tambour à linge (107), dans lequel la commande (119) est configurée pour activer l'entraînement de tambour (123) pendant la tranche de temps maximale (151) afin de faire tourner le tambour à linge (107) à une vitesse de rotation maximale (155), lorsque le poids du linge (135) détecté par le capteur de poids est supérieur à une valeur seuil de poids, et/ou
    dans lequel la commande (119) est configurée pour activer l'entraînement de tambour (123) pendant la tranche de temps de tambour (153), en particulier sans activer auparavant l'entraînement de tambour (123) durant la tranche de temps maximale (151), afin de faire tourner le tambour à linge (107) à une vitesse de rotation de tambour (159), lorsque le poids détecté par le capteur de poids est inférieur à une valeur seuil de poids,
    dans lequel la valeur seuil de poids correspond en particulier à la moitié du chargement en linge maximal du tambour à linge (107).
  4. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que la commande (119) est configurée pour activer l'entraînement de tambour (123) pendant une tranche de temps préalable (163) de la période de lavage (149) avant la tranche de temps de tambour (153), en particulier avant la tranche de temps maximale (151), afin de faire tourner le tambour à linge (107) à une vitesse de rotation de tambour préalable (165), la vitesse de rotation de tambour préalable (165) étant supérieure à la vitesse de rotation de détachement (161) et inférieure à la vitesse de rotation de résonance (157) du tambour à linge (107), et dans lequel la commande (119) est configurée en particulier pour activer le moyen d'introduction de liquide de lavage (118-1, 118-2) durant la tranche de temps préalable (163) afin d'amener du liquide de lavage dans le tambour à linge tournant (107) et de pré-mouiller le linge (135) dans le tambour à linge (107).
  5. Appareil d'entretien du linge (100) selon la revendication 4, caractérisé en ce que la commande (119) est configurée pour mettre fin à la tranche de temps préalable (163) lorsqu'un capteur de niveau de remplissage disposé dans la cuve de lavage (105) détecte un niveau de remplissage de liquide de lavage qui est inférieur à une valeur seuil de niveau de remplissage, et/ou en ce que la commande (119) est configurée pour mettre fin à la tranche de temps préalable (163) lorsqu'un élément de détection de puissance (131), qui est configuré pour détecter une valeur de puissance électrique d'une pompe (117) du moyen d'introduction de liquide de lavage (118-1, 118-2) de l'appareil d'entretien du linge (100), détecte une valeur de puissance électrique de la pompe (117), qui est inférieure à une valeur de puissance électrique de référence.
  6. Appareil d'entretien du linge (100) selon la revendication 4 ou 5, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un capteur de balourd, en particulier un capteur d'accélération ou un capteur de position, qui est configuré pour détecter un déséquilibre du système oscillant (109), dans lequel la commande (119) est configurée pour mettre fin à la tranche de temps préalable (163) lorsque le capteur de balourd détecte pendant la tranche de temps préalable (163) un déséquilibre du système oscillant (109).
  7. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que la commande (119) est configurée pour activer l'entraînement de tambour (123) pendant au moins une tranche de temps de tambour supplémentaire (153-2) de la période de lavage (149) consécutive à la tranche de temps de tambour (153), afin de faire tourner le tambour à linge (107) à une vitesse de rotation de tambour supplémentaire (159-2), dans lequel la vitesse de rotation de tambour supplémentaire (159-2) est inférieure à la vitesse de rotation de résonance (157) du tambour à linge (107), et en ce que
    la commande (119) est configurée en particulier pour activer le moyen d'introduction de liquide de lavage (118-1, 118-2) pendant l'au moins une tranche de temps de tambour supplémentaire (153-2) afin d'amener du liquide de lavage dans le tambour à linge tournant (107).
  8. Appareil d'entretien du linge (100) selon la revendication 7, caractérisé en ce que la vitesse de rotation de tambour supplémentaire (159-2) est inférieure à la vitesse de rotation de résonance (157) et inférieure à la vitesse de rotation de détachement (161) du tambour à linge (107), ou en ce que la vitesse de rotation de tambour supplémentaire (159-2) est inférieure à la vitesse de rotation de résonance (157) et supérieure à la vitesse de rotation de détachement (161) du tambour à linge (107).
  9. Appareil d'entretien du linge (100) selon la revendication 7 ou 8, caractérisé en ce que la commande (119) est configurée pour activer l'entraînement de tambour (123) pendant une tranche de temps maximale supplémentaire (151-2) consécutive à l'au moins une tranche de temps de tambour supplémentaire (153-2), afin de faire tourner le tambour à linge (107) à une vitesse de rotation maximale supplémentaire (155-2), dans lequel la vitesse de rotation maximale supplémentaire (155-2) est supérieure à la vitesse de rotation de résonance (157).
  10. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que la commande (119) est configurée pour activer l'entraînement de tambour (123) pendant une tranche de temps de ralentissement (171) consécutive à la tranche de temps de tambour (153), afin de faire tourner le tambour à linge (107) à une vitesse de rotation de ralentissement (173), dans lequel la vitesse de rotation de ralentissement (173) est inférieure à la vitesse de rotation de tambour (159) et supérieure à la vitesse de rotation de détachement (161), dans lequel la commande (119) est configurée pour activer au moins une fois le moyen d'introduction de liquide de lavage (118-1, 118-2) pendant la tranche de temps de ralentissement (171), afin d'amener au moins une fois du liquide de lavage au linge (135) dans le tambour à linge (107).
  11. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, dans lequel la commande (119) est configurée pour déterminer le nombre des activations du moyen d'introduction de liquide de lavage (118-1, 118-2) et/ou la quantité du liquide de lavage introduite pendant la tranche de temps de ralentissement (171) en fonction d'un poids détecté du linge reçu dans le tambour à linge (107) par un capteur de poids de l'appareil d'entretien du linge (100), et/ou en fonction d'un programme d'entretien du linge sélectionné par un utilisateur de l'appareil d'entretien du linge (100) et/ou en fonction d'un type de textile du linge déterminé par un moyen de détection de textile, et/ou en fonction d'une saturation du linge (135) avec du liquide de lavage déterminée par un moyen de saturation.
  12. Appareil d'entretien du linge (100) selon la revendication 10 ou 11, caractérisé en ce que la commande (119) est configurée pour interrompre la tranche de temps de ralentissement (171) durant une tranche de temps intermédiaire (175), afin d'activer l'entraînement de tambour (123) pour faire tourner le tambour à linge (107) à la vitesse de rotation de tambour (159), de façon à former un tunnel de linge (137) à l'intérieur du linge (135) reçu dans le tambour à linge (107), et/ou en ce que la commande (119) est configurée pour interrompre la tranche de temps de ralentissement (171) durant une tranche de temps intermédiaire (175), afin d'activer l'entraînement de tambour (123) pour faire tourner le tambour à linge (107) à une vitesse de rotation maximale supplémentaire (155-2).
  13. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que le moyen d'introduction de liquide de lavage (118-1) comprend une pompe (117), qui est configurée pour pomper du liquide de lavage à partir de la cuve de lavage (105) et pour amener le liquide de lavage à nouveau au linge (135) dans le tambour à linge (107), et dans lequel la commande (119) est configurée pour activer la pompe (117) durant la période de lavage (149) afin d'amener du liquide de lavage au linge (135) dans le tambour à linge (107).
  14. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce qu'un moyen d'introduction de liquide de lavage supplémentaire (118-2), en particulier un moyen d'introduction d'eau fraîche est relié à la cuve de lavage (105) par une conduite d'amenée (129), dans lequel la commande (119) est configurée pour activer le moyen d'introduction de liquide de lavage supplémentaire (118-2) pendant la période de lavage (149), afin d'amener du liquide de lavage, en particulier de l'eau fraîche à la cuve de lavage (105).
  15. Procédé (200) d'entretien du linge (135) dans un appareil d'entretien du linge (100), dans lequel l'appareil d'entretien du linge (100) comprend une cuve de lavage (105) pour recevoir un liquide de lavage, un tambour à linge (107) pour recevoir du linge, le tambour à linge (107) étant disposé dans la cuve de lavage (105), un système oscillant (109) qui est configuré pour supporter de façon oscillante le tambour à linge (107) et la cuve de lavage (105) dans l'appareil d'entretien du linge (100), un entraînement de tambour (123) pour faire tourner le tambour à linge (107), un moyen d'introduction de liquide de lavage (118-1, 118-2) destiné à introduire du liquide de lavage dans le tambour à linge (107) pendant une période de lavage (149), et une commande (119) pour commander l'entraînement de tambour (123) et le moyen d'introduction de liquide de lavage (118-1, 118-2),
    caractérisé en ce que le procédé (200) comprend :
    activation (201) de l'entraînement de tambour (123) par la commande (119) pendant une tranche de temps de tambour (153) de la période de lavage (149) pour faire tourner le tambour à linge (107) à une vitesse de rotation de tambour (159) afin de former un tunnel de linge (137) à l'intérieur du linge (135) reçu dans le tambour à linge (107),
    dans lequel le tunnel de linge (137) est produit dans le tambour à linge tournant (107) par des forces centrifuges agissant sur le linge, par lesquelles le linge reçu dans le tambour à linge (107) tournant est comprimé contre le tambour à linge (107) et au moyen de quoi le tunnel de linge (137) est formé, la vitesse de rotation de tambour (159) étant supérieure à une vitesse de rotation de détachement (161) du tambour à linge (107) et inférieure à une vitesse de rotation de résonance (157) du tambour à linge (107),
    dans lequel la vitesse de rotation de détachement (161) est une vitesse de rotation maximale du tambour à linge (107) à laquelle le linge (135) reçu dans le tambour à linge (107) se détache du tambour à linge (107), et
    dans lequel la vitesse de rotation de résonance (157) est une vitesse de rotation du tambour à linge (107) à laquelle une fréquence d'oscillation du système oscillant (109) équivaut à une fréquence propre d'oscillation du système oscillant (109), et
    activation (203) par la commande (119) du moyen d'introduction de liquide de lavage (118-1, 118-2) pendant la période de lavage (149), afin d'introduire du liquide de lavage dans le tunnel de linge (137) formé à l'intérieur du tambour à linge (107).
EP20757844.4A 2019-08-29 2020-08-10 Appareil de soin du linge équipé d'une unité de commande Active EP4022119B1 (fr)

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PCT/EP2020/072371 WO2021037538A1 (fr) 2019-08-29 2020-08-10 Appareil de soin du linge équipé d'une unité de commande

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Publication number Priority date Publication date Assignee Title
CH390862A (de) * 1961-11-03 1965-04-30 Schulthess & Co Ag Maschf Automatische Waschmaschine, insbesondere für Selbstbedienungs-Waschanstalten
DE19641309B4 (de) * 1996-10-08 2014-07-31 Electrolux Rothenburg Gmbh Factory And Development Trommelwaschmaschine
DE10326551A1 (de) * 2003-06-12 2005-01-05 BSH Bosch und Siemens Hausgeräte GmbH Wasch- und Spülverfahren für eine Waschmaschine
DE102009002782B4 (de) * 2009-05-04 2012-02-23 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Spülen in einer Waschmaschine mit einem Spülschritt bei hoher Trommeldrehzahl
JP2011101667A (ja) * 2009-11-10 2011-05-26 Panasonic Corp 洗濯機
KR101506146B1 (ko) * 2012-02-03 2015-03-26 삼성전자 주식회사 세탁기 및 그 제어 방법
DE102013104075A1 (de) * 2013-04-23 2014-10-23 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine und Waschmaschine
DE102013106089A1 (de) * 2013-06-12 2014-12-18 Miele & Cie. Kg Waschverfahren für eine Waschmaschine
DE102014104962A1 (de) * 2014-04-08 2015-10-08 Miele & Cie. Kg Wasserzulaufsteuerung und Waschvollautomat
EP3320137B1 (fr) * 2015-07-08 2020-07-29 BSH Hausgeräte GmbH Appareil et procédé d'entretien du linge
DE102016212489A1 (de) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102016216391A1 (de) * 2016-08-31 2018-03-01 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Umleitvorrichtung
DE102016225146B3 (de) * 2016-12-15 2018-05-03 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

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DE102019213014A1 (de) 2021-03-04
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EP4022119A1 (fr) 2022-07-06
WO2021037538A1 (fr) 2021-03-04

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