EP4022118B1 - Appareil de traitement de linge comprenant un dispositif de commande - Google Patents

Appareil de traitement de linge comprenant un dispositif de commande Download PDF

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Publication number
EP4022118B1
EP4022118B1 EP20754241.6A EP20754241A EP4022118B1 EP 4022118 B1 EP4022118 B1 EP 4022118B1 EP 20754241 A EP20754241 A EP 20754241A EP 4022118 B1 EP4022118 B1 EP 4022118B1
Authority
EP
European Patent Office
Prior art keywords
laundry
drum
rotational speed
washing liquid
during
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
EP20754241.6A
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German (de)
English (en)
Other versions
EP4022118A1 (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
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BSH Hausgeraete GmbH
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Filing date
Publication date
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Publication of EP4022118A1 publication Critical patent/EP4022118A1/fr
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Publication of EP4022118B1 publication Critical patent/EP4022118B1/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
    • 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
    • D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • 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
    • D06F33/38—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • 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
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • D06F2103/26—Imbalance; Noise level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • 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
    • 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

Definitions

  • the present invention relates to a laundry care device with a control.
  • the supplied washing liquid is often injected into the laundry drum through a front drum opening facing the appliance door of the laundry care appliance.
  • the laundry in conventional laundry care devices often completely fills the volume of the laundry drum, so that complete or even wetting of the inner area of the laundry held in the laundry drum cannot be ensured in all operating states.
  • the disclosure document DE 103 26 551 A1 discloses a washing and rinsing method for a washing machine.
  • the object according to the invention is achieved by a laundry care device, with a tub for holding washing liquid, a laundry drum for holding laundry, the laundry drum being arranged in the tub, a vibration system, which is designed to oscillate the laundry drum and the tub in the laundry care appliance, a drum drive for rotating the laundry drum during a washing period, and a controller for controlling the drum drive, wherein the control is designed to activate the drum drive during a maximum period of the washing period in order to rotate the laundry drum at a maximum speed, the maximum speed being greater than a resonance speed of the laundry drum, the resonance speed being a speed of the laundry drum at which an oscillation frequency of the oscillation system corresponds to a natural oscillation frequency of the oscillation system, and wherein the control is designed to activate the drum drive during a drum time period of the washing period following the maximum time period in order to rotate the laundry drum at a drum speed, the drum speed being less than the resonance speed of the laundry drum and greater than one Detachment speed of the laundry drum is to form and maintain a
  • rotating the laundry drum at a speed that is lower or equal to the resonance speed is often not sufficient to ensure that the laundry is completely applied to the laundry drum.
  • control of the laundry care device according to the present disclosure is designed to increase the speed during the maximum time period to the maximum speed in order to ensure that the laundry is completely applied to the laundry drum even with large loads of laundry.
  • the control in the laundry care appliance then reduces the rotational speed of the laundry drum to the drum speed during the drum time period, the laundry tunnel can be effectively formed in the laundry drum or a laundry tunnel that has been formed can be maintained.
  • the drum speed is greater than the release speed prevents the laundry from collapsing again, since the release speed is the maximum speed of the laundry drum at which the centrifugal force acting on the laundry is not sufficient for the laundry to attach itself to the laundry drum . This ensures that the laundry is in contact with the laundry drum at a drum speed that is greater than the removal speed.
  • the laundry tunnel is understood to be that 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 on a jacket of the laundry drum.
  • a cavity is created within the batch of laundry, which is referred to as a laundry tunnel.
  • drum speed is lower than the resonance speed ensures, during any subsequent wetting process, that washing liquid injected into the laundry tunnel is not immediately expelled radially, but remains in the laundry for a sufficient wetting period, and that by passing through the resonance speed caused resonant rocking of the oscillating system is reduced.
  • the maximum speed is between 400 rpm and 1000 rpm, in particular 500 rpm.
  • the resonance speed is between 100 rpm and 300 rpm.
  • the drum speed is below 100 rpm.
  • the release speed is below 80 rpm.
  • a laundry care device is understood to mean a device that is used for laundry care, such as a washing machine, a washer-dryer or a Tumble dryer.
  • a laundry care device is understood to mean a household laundry care device.
  • a laundry care device that is used as part of household management and with which laundry is treated in normal household quantities.
  • the laundry care device has a weight sensor, which is designed to detect a weight of laundry picked up in the laundry drum, and the control is designed to activate the drum drive during the maximum time period in order to rotate the laundry drum at the maximum speed when the weight of the laundry detected by the weight sensor exceeds a weight threshold value, the weight threshold value corresponding in particular to half of the maximum laundry load of the laundry drum.
  • the weight sensor can effectively detect the mass of the laundry, so that the control can activate the drum drive during the maximum time period as soon as a large load of laundry is detected.
  • half of the maximum laundry load of the laundry drum can be selected as an exemplary weight threshold value.
  • 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 received 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 device in order to detect the weight of the laundry picked up 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 picked up in the laundry drum.
  • control is designed to activate the drum drive during a pre-time period before the maximum time period in order to rotate the laundry drum at a pre-drum speed, the pre-drum speed being greater than the detachment speed and lower than the resonance speed of the laundry drum, in particular the control being designed is, during the Preliminary section to activate a washing liquid supply device of the laundry care device in order to supply washing liquid into the rotating laundry drum and to pre-wet the laundry in the laundry drum.
  • a laundry tunnel can be formed within the laundry drum during the pre-drum period by rotating the laundry drum at the pre-drum speed.
  • an advantageous pre-wetting of the laundry can take place by supplying washing liquid through the washing liquid supply device.
  • the design of the laundry tunnel can be improved in the maximum time period.
  • the controller is designed to end the early period when a fill level sensor arranged in the tub detects a level of washing liquid that falls below a fill level threshold value, and/or the controller is designed to end the early period when a power detection element, which is designed to detect an electrical power value of a pump of a washing liquid supply device of the laundry care appliance, detects an electrical power value of the pump, which falls below an electrical reference power value.
  • the laundry care device has an unbalance sensor, in particular an acceleration sensor and/or a position sensor, which is designed to detect an unbalance of the oscillation system, the controller being designed to increase the speed of the laundry drum to a minimum speed during a detection period of the washing period reduce if the unbalance sensor detects an unbalance of the oscillation system, the minimum speed being in particular lower than the release speed.
  • an unbalance sensor in particular an acceleration sensor and/or a position sensor, which is designed to detect an unbalance of the oscillation system
  • the controller being designed to increase the speed of the laundry drum to a minimum speed during a detection period of the washing period reduce if the unbalance sensor detects an unbalance of the oscillation system, the minimum speed being in particular lower than the release speed.
  • the controller is designed to stop the rotation of the laundry drum during the detection period and/or to change a direction of rotation of the rotating laundry drum when the unbalance sensor detects an imbalance in the oscillation system.
  • the controller is designed to limit the maximum speed during the maximum time period if the unbalance sensor detects an unbalance of the oscillation system during the detection time period before the maximum time period.
  • control is designed to activate the drum drive in order to maintain the maximum speed constantly during the maximum time period.
  • the laundry care device has a washing liquid supply device for supplying washing liquid into the laundry drum, and the control is designed to supply the washing liquid supply device during the washing period, in particular during the pre-period, and/or during the maximum time period, and/or during the detection period, and /or during the drum period, to activate washing liquid into the laundry tunnel formed within the laundry drum.
  • washing liquid supply device comprises in particular a supply element which is arranged to inject the washing liquid in a directed manner into the laundry tunnel.
  • control is designed to activate the washing liquid supply device in a first operating mode in order to supply washing liquid into the laundry drum at a first flow rate
  • control is designed to activate the washing liquid supply device in at least one further operating mode in order to supply washing liquid with a further Flow velocity, which is greater than the first flow velocity, into the laundry drum in order to vary the point of impact of the washing liquid in the laundry tunnel formed in the rotating laundry drum.
  • control is designed to determine the first flow speed in such a way that the point of impact of the washing liquid during the first operating mode is arranged on a front side of the laundry drum facing the front of the laundry care appliance, and / or the control is designed to determine the further flow speed in such a way to determine that the point of impact of the washing liquid is arranged on the back of the laundry drum facing away from the front of the laundry care appliance.
  • the controller is designed to change the operating mode of the washing liquid supply device between the first operating mode and the at least one further operating mode, in particular to change it gradually or continuously.
  • 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 holding washing liquid, a laundry drum for holding laundry, the laundry drum being arranged in the tub, a vibration system, which is trained to oscillate the laundry drum and the tub in the laundry care appliance, a drum drive for rotating the laundry drum during a washing period, and a controller for controlling the drum drive, the method having the following steps: activating the drum drive during a maximum period of the washing period by the controller, to rotate the laundry drum at a maximum speed, the maximum speed being greater than a resonance speed of the laundry drum, the resonance speed being a speed of the laundry drum at which an oscillation frequency of the oscillation system corresponds to a natural oscillation frequency of the oscillation system; and activating the drum drive during a drum time period of the washing period following the maximum time period by the controller in order to rotate the laundry drum at a drum speed, the drum speed being less than the resonance speed of the laundry drum and greater than a de
  • the laundry care device has an unbalance sensor, in particular an acceleration sensor and/or position sensor, which is designed to detect an unbalance of the oscillation system, the method further comprising the following step: reducing the speed of the laundry drum to a minimum speed during a detection period of the Washing period by the control when the unbalance sensor detects an unbalance of the oscillation system, the minimum speed being in particular lower than the separation speed.
  • an unbalance sensor in particular an acceleration sensor and/or position sensor
  • the laundry care device has a washing liquid supply device for supplying washing liquid into the laundry drum, and comprises activating the drum drive during the maximum time period and/or activating the drum drive during the drum time period of the washing period further comprises activating the washing liquid supply device in order to feed washing liquid into the to feed the laundry tunnel formed within the laundry drum.
  • inventions marked 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 device 100 includes a dispenser bowl 101 into which detergent or other liquid substances can be filled.
  • the laundry care device 100 has a device housing 102.
  • the laundry care device 100 includes an appliance door 103 for loading the laundry care device 100 with laundry.
  • Fig. 2 shows a schematic view of a laundry care device with a control.
  • the laundry care device 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 tub 105 and the laundry drum 107 arranged in the tub 105 are mounted so that they can oscillate in the laundry care device 100 by a vibration system 109 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 fluidly connected to the supply element 113 through a liquid line 115, a pump 117 for pumping washing liquid through the liquid line 115 being arranged in the liquid line 115.
  • the pump 117 can drain washing liquid through the drain opening 111 from the tub 105 during an in Fig. 2 pumping process, not shown, 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 feed again.
  • 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 feed element 113 is designed as an angularly extending feed element 113.
  • the laundry care device 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, the further washing liquid supply device 118-2 being connected to the tub 105 by a supply line 129.
  • the further washing liquid supply device 118-2 comprises an in Fig. 2 101 of the laundry care appliance 100, not shown, and/or an in Fig. 2 fresh water connection, not shown, of the laundry care appliance 100, wherein the controller 119 is designed to activate a washing liquor inlet via the dispenser bowl 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 device 100 further has a power detection element 131 for detecting an electrical power value of the drum drive 123.
  • the power detection element 131 is arranged in particular in the controller 119.
  • the power detection element 131 can be arranged in particular in the drum drive 123. According to an alternative embodiment, the power detection element 131 can in particular be arranged outside the drum drive 123 and/or the controller 119 and be connected to the drum drive 123 and/or the controller 119 in terms of control technology.
  • the power detection element 131 is designed to detect a torque-generating current intensity and/or an electrical power consumption of the drum drive 123 as an electrical power value of the drum drive 123.
  • the laundry care device 100 further comprises an outlet line 128, which is fluidly connected to the liquid line 115.
  • the pump 117 is formed during an in Fig. 2 pumping process, not shown, to pump out washing liquid through the drain opening 111 from the tub 105, through the liquid line 115 and through the outlet line 128 from the laundry care appliance 100.
  • the pump 117 can in particular comprise two pump units, with one of the pump units pumping the washing liquid out of the laundry care appliance 100 through the outlet line 128, and the other of the pump units supplying the washing liquid to the laundry drum 107 through the liquid line 115.
  • 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 appliance 100 is shown, which is represented by an in Fig. 3 Drum drive 123, not shown, 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.
  • the wetting of the laundry 135 received in the laundry drum 107 with washing liquid occurs most quickly if it takes place radially, in particular by pumping around or centrally spraying in washing liquid.
  • the formation of a laundry tunnel 137 is required, the formation of the laundry tunnel 137 being correlated with the centrifugal acceleration of the laundry 135 due to the rotation of the laundry drum 107 and the laundry mass, which increases due to the supply of washing liquid.
  • an inflow 139 of washing liquid can be supplied to the laundry tunnel 137 by a washing liquid supply 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 graphic representation of a laundry care process according to a first embodiment.
  • Fig. 4 shows a time representation of the speed of rotation of the laundry drum 107, which is plotted along the ordinate axis 145 as a function of the time, which is indicated along the abscissa axis 147.
  • the first curve 140-1 shown shows the time course of the speed of a laundry drum 107 rotated by a drum drive 123.
  • the in Fig. 4 Washing period 149 shown includes a maximum time period 151 and a drum time period 153 following the maximum time period 151.
  • a controller 119 of the laundry care device 100 is designed to activate the drum drive 123 during the maximum time period 151 of the washing period 149 in order to rotate the laundry drum 107 at a maximum speed 155, the maximum speed 155 being greater than a resonance speed 157 of the laundry drum 107.
  • the resonance speed 157 is a speed of the laundry drum 107, at which an oscillation frequency of an oscillation system 109 of the laundry care appliance 100 corresponds to a natural oscillation frequency of the oscillation system 109.
  • the controller 119 is then designed to activate the drum drive 123 during the drum time period 153 in order to rotate the laundry drum 107 at a drum speed 159, the drum speed 159 being less than the resonance speed 157 of the laundry drum 107 and greater than a detachment speed 161 of the laundry drum 107 to obtain a laundry tunnel 137 within the laundry 135 received in the laundry drum 107.
  • the detachment speed 161 is a maximum speed of the laundry drum 107 at which the laundry 135 picked up in the laundry drum 107 detaches from the laundry drum 107, i.e. the speed of the laundry drum 107 at which the laundry 135 resting on the laundry drum 107 collapses again.
  • a laundry tunnel 137 formed within the laundry 135 can be advantageously maintained in order to use it advantageously for subsequent processes.
  • the energy requirement, the system load, the vibration emissions, and the water absorption capacity can be advantageously adjusted according to the present disclosure, in contrast to a long-term exceedance of the resonance speed 157. This creates a prerequisite for washing without oversaturated laundry or without dead liquor and heating the laundry 135 with steam or warm air.
  • the amounts of the maximum speed 155, the resonance speed 157, the drum speed 159 and/or the detachment speed 161 depend in particular on the weight of the laundry 135 received in the laundry drum 107, the amount of washing liquid supplied and/or the device type of the laundry care device 100 used.
  • the maximum speed 155 is from 400 rpm to 1000 rpm, in particular 500 rpm.
  • the resonance speed 157 is from 100 rpm to 300 rpm.
  • the drum speed 159 is less than 100 rpm.
  • the separation speed 161 is less than 80 rpm.
  • Fig. 5 shows a graphical representation of a laundry care process according to a second embodiment.
  • the ones in the Fig. 5 The second curve 140-2 shown shows the time course of the speed of a laundry drum 107 rotated by a drum drive 123.
  • a drum drive 123 For the identification of the axes and the corresponding speeds, reference is made to the comments on the first embodiment Fig. 4 referred.
  • the controller 119 is designed to activate the drum drive 123 during a pre-period 163 of the washing period 149 before the maximum time period 151 in order to rotate the laundry drum 107 at a pre-drum speed 165 during the pre-period 163, the pre-drum speed 165 being greater than the detachment speed 161 and lower than the resonance speed 157 of the laundry drum 107.
  • the laundry drum 107 is then rotated at the maximum speed 155 during the maximum time period 151 and at the drum speed 159 during the drum time period 153.
  • the third curve 140-3 shown shows the washing liquid supplied to the laundry 135 in the laundry drum 107 by a washing liquid supply device 118-1, in particular feed element 113, of the laundry care device 100, which can either be freshly supplied or expelled from the laundry at the same time. From the third curve 140-3 it can be seen that the washing liquid can be supplied to the laundry 135 during the washing period 149, in particular during the pre-time period 163, during the maximum time period 151, and/or during the drum period 153 in order to wet the laundry 135.
  • the pre-drum speed 165 can correspond to the drum speed 159 or the pre-drum speed 165 and the drum speed 159 can be different.
  • Fig. 6 shows a graphical representation of a laundry care process according to a third embodiment.
  • the third embodiment shown corresponds to that in Fig. 4 illustrated first embodiment, except that in the Fig. 6 the maximum speed 155 of the laundry drum 107 is maintained constantly during the maximum time period 151 as shown in the fourth curve 140-4.
  • Fig. 7 shows a graphical representation of a laundry care process according to a fourth embodiment.
  • the sixth curve 140-6 shown shows the time course of the speed of a laundry drum 107 during the washing period 149, the washing period 149 having, in addition to the maximum time period 151, a detection time period 167 which extends before the maximum time period 151.
  • the laundry care appliance 100 has an unbalance sensor, in particular an acceleration sensor and/or position sensor, which is designed to detect an imbalance of the oscillation system 109 of the laundry care appliance 100.
  • the controller 119 is designed to reduce the speed of the laundry drum 107 to a minimum speed 169 when the unbalance sensor detects an imbalance in the oscillation system 109.
  • the minimum speed 169 is lower than the release speed 161.
  • the controller 119 is further designed to stop the rotation of the laundry drum 107 when the unbalance sensor detects an unbalance of the oscillation system 109.
  • the control 119 can also change the direction of rotation 133-1, 133-2 of the laundry drum 107 or reverse the laundry drum 107.
  • the controller 119 is also designed in particular to limit the maximum speed 155 when the unbalance sensor detects an unbalance of the oscillation system 109.
  • Fig. 8 shows a schematic representation of a laundry care process according to a fifth embodiment.
  • Fig. 8 shows according to the Fig. 3 a laundry tunnel 137 formed by the rotation of the laundry drum 107, wherein washing liquid can be injected into the laundry tunnel 137 by the washing liquid supply device 118-1, in particular feed element 113, in this case in Fig. 8 different injection curve profiles 171 are shown.
  • the controller 119 is designed to activate the washing liquid supply device 118-1 during the washing period 149, in particular during the maximum time period 151 and/or during the drum period 153, in order to supply washing liquid at a first flow rate into the laundry drum 107 in a first operating mode, and in order to in at least one further operating mode, to supply washing liquid with at least one further flow speed, which is greater than the first flow speed, into the laundry drum 107 in order to vary the point of impact of the washing liquid in the laundry tunnel 137 formed in the rotating laundry drum 107.
  • the controller 119 is in particular designed to determine the first flow velocity in such a way that the point of impact of the washing liquid during the first operating mode is arranged on a laundry drum front side 107-1 of the laundry drum 107 facing the front of the laundry care appliance 100, and the controller 119 is in particular designed to to determine at least one further flow velocity in such a way that the point of impact of the washing liquid is arranged on a laundry drum rear side 107-2 of the laundry drum 107 facing away from the front side of the laundry care appliance 100.
  • the controller 119 is designed in particular to switch the first operating mode of the washing liquid supply device 118-1 to the at least one further operating mode during an intermediate period Washing liquid supply device 118-1 to change, in particular to change gradually or continuously.
  • the first injection curve 171-1 results in the first operating mode
  • the further injection curve 171-2 results in a further operating mode
  • an additional injection curve 171-3 results in a further operating mode, so that the laundry tunnel 137 can be effectively moistened from front to back.
  • Fig. 9 shows a schematic representation of a method for caring for laundry in a laundry care device.
  • the method 200 includes, as a first method step, the activation 201 of the drum drive 123 during a maximum time segment 151 of the washing period 149 by the controller 119 in order to rotate the laundry drum 107 at a maximum speed 155, the maximum speed 155 being greater than a resonance speed 157 of the laundry drum 107, 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 includes activating 203 the drum drive 123 during a drum time period 153 of the washing period 149 following the maximum time period 151 by the controller 119 in order to rotate the laundry drum 107 at a drum speed 159, the drum speed 159 being less than the resonance speed 157 of the laundry drum 107 and is greater than a detachment speed 161 of the laundry drum 107 in order to maintain a laundry tunnel 137 within the laundry 135 received in the laundry drum 107, the detachment speed 161 being a maximum speed of the laundry drum 107 at which the in the Laundry drum 107 releases laundry 135 picked up from the laundry drum 107.

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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) pendant une période de lavage (149), et une commande (119) pour commander l'entraînement de tambour (123),
    caractérisé en ce que
    la commande (119) est configurée pour activer l'entraînement de tambour (123) durant une tranche de temps maximale (151) de la période de lavage (149) 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 une vitesse de rotation de résonance (157) du tambour à linge (107), et la vitesse de rotation de résonance (157) étant 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 l'entraînement de tambour (123) pendant une tranche de temps de tambour (153) de la période de lavage (149) consécutive à la tranche de temps maximale (151), afin de faire tourner le tambour à linge (107) à une vitesse de rotation de tambour (159), dans lequel la vitesse de rotation de tambour (159) est inférieure à une vitesse de rotation de résonance (157) du tambour à linge (107), et supérieure à la vitesse de rotation de détachement (161) du tambour à linge (107), pour former et maintenir un tunnel de linge (137) à l'intérieur du linge (135) reçu dans le 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).
  2. Appareil d'entretien du linge (100) selon la revendication 1, 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), et en ce que 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 la 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, dans lequel la valeur seuil de poids correspond en particulier à la moitié de la charge de linge maximale du tambour à linge (107).
  3. Appareil d'entretien du linge (100) selon la revendication 1 ou 2, caractérisé en ce que la commande (119) est configurée pour activer l'entraînement de tambour (123) pendant une tranche de temps préalable (163) avant la tranche de temps maximale (151) afin de faire tourner le tambour à linge (107) à une vitesse de rotation préalable de tambour (165), la vitesse de rotation préalable de tambour (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 en particulier la commande (119) est configurée pour activer pendant la tranche de temps préalable (163) un moyen d'amenée de liquide de lavage (118-1, 118-2) de l'appareil d'entretien du linge (100), afin d'amener du liquide de lavage dans le tambour à linge (107) tournant et de pré-mouiller le linge (135) dans le tambour à linge (107).
  4. Appareil d'entretien du linge (100) selon la revendication 3, caractérisé en ce que la commande (119) est configurée pour terminer la tranche de temps préalable (163) lorsqu'un capteur de niveau disposé dans la cuve de lavage (105) détecte un niveau de remplissage du 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 terminer 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) d'un moyen d'amenée 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.
  5. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un capteur de balourd, en particulier un capteur d'accélération et/ou un capteur de position, qui est configuré pour détecter un déséquilibrage du système oscillant (109),
    dans lequel la commande (119) est configurée pour réduire, pendant une tranche de temps de détection (167) de la période de lavage (149), la vitesse de rotation du tambour à linge (107) à une vitesse de rotation minimale (169) lorsque le capteur de balourd détecte un déséquilibrage du système oscillant (109), la vitesse de rotation minimale (169) étant en particulier inférieure à la vitesse de rotation de détachement (161).
  6. Appareil d'entretien du linge (100) selon la revendication 5, caractérisé en ce que la commande (119) est configurée pour stopper la rotation du tambour à linge (107) pendant la tranche de temps de détection (167) et/ou modifier un sens de rotation (133-1, 133-2) du tambour à linge tournant (107) lorsque le capteur de balourd détecte un déséquilibrage du système oscillant (109).
  7. Appareil d'entretien du linge (100) selon la revendication 5 ou 6, caractérisé en ce que la commande (119) est configurée pour limiter la vitesse de rotation maximale (155) pendant la tranche de temps maximale (151) lorsque le capteur de balourd détecte un déséquilibrage du système oscillant (109) pendant une tranche de temps de détection (167) avant la tranche de temps maximale (151).
  8. 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) afin de maintenir constante la vitesse de rotation maximale (155) pendant la tranche de temps maximale (151).
  9. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un moyen d'amenée de liquide de lavage (118-1, 118-2) pour amener du liquide de lavage dans le tambour à linge (107), et en ce que la commande (119) est configurée pour activer le moyen d'amenée de liquide de lavage (118-1, 118-2) pendant la période de lavage (149), en particulier pendant la tranche de temps préalable (163), et/ou pendant la tranche de temps maximale (151) et/ou pendant la tranche de temps de détection (167), et/ou pendant la tranche de temps de tambour (153) afin d'amener du liquide de lavage dans le tunnel de linge (137) formé à l'intérieur du tambour à linge (107).
  10. Appareil d'entretien du linge (100) selon la revendication 9, caractérisé en ce que la commande (119) est configurée pour activer le moyen d'amenée de liquide de lavage (118-1, 118-2) dans un premier mode de fonctionnement afin d'amener du liquide de lavage dans le tambour à linge (107) à une première vitesse d'écoulement, et en ce que la commande (119) est configurée pour activer le moyen d'amenée de liquide de lavage (118-1, 118-2) dans au moins un autre mode de fonctionnement afin d'amener du liquide de lavage dans le tambour à linge (107) à une autre vitesse d'écoulement qui est supérieure à la première vitesse d'écoulement, afin de faire varier le point d'incidence du liquide de lavage dans le tunnel de linge (137) formé dans le tambour à linge (107) tournant.
  11. Appareil d'entretien du linge (100) selon la revendication 10, caractérisé en ce que la commande (119) est configurée pour déterminer la première vitesse d'écoulement de sorte que le point d'incidence du liquide de lavage pendant le premier mode de fonctionnement soit situé au niveau d'un côté frontal de tambour à linge du tambour à linge (107) orienté vers le côté frontal de l'appareil d'entretien du linge (100), et/ou en ce que la commande (119) est configurée pour déterminer l'autre vitesse d'écoulement de sorte que le point d'incidence du liquide de lavage soit situé au niveau d'un côté arrière de tambour à linge du tambour à linge (107) opposé à un côté frontal de l'appareil d'entretien du linge (100).
  12. Appareil d'entretien du linge (100) selon la revendication 10 ou 11, caractérisé en ce que la commande (119) est configurée pour faire varier le mode de fonctionnement du moyen d'amenée de liquide de lavage (118-1, 118-2) entre le premier mode de fonctionnement et l'au moins un autre mode de fonctionnement, en particulier par paliers ou de façon continue.
  13. Procédé (200) d'entretien du linge (135) dans un appareil de traitement du linge (100), dans lequel l'appareil de traitement 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) pendant une période de lavage (149), et une commande (119) pour commander l'entraînement de tambour (123),
    caractérisé en ce que le procédé (200) comprend les opérations suivantes :
    activation (201) de l'entraînement de tambour (123) durant une tranche de temps maximale (151) de la période de lavage (149) par la commande (119) 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 une vitesse de rotation de résonance (157) du tambour à linge (107), et la vitesse de rotation de résonance (157) étant 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), de l'entraînement de tambour (123) pendant une tranche de temps de tambour (153) de la période de lavage (149) consécutive à la tranche de temps maximale (151), afin de faire tourner le tambour à linge (107) à une vitesse de rotation de tambour (159), dans lequel la vitesse de rotation de tambour (159) est inférieure à la vitesse de rotation de résonance (157) du tambour à linge (107) et supérieure à une vitesse de rotation de détachement (161) du tambour à linge (107), afin de former et maintenir un tunnel de linge (137) à l'intérieur du linge (135) reçu dans le tambour à linge (107),
    dans lequel la vitesse de rotation de détachement (161) est une vitesse de rotation minimale du tambour à linge (107) à laquelle le linge (135) reçu dans le tambour à linge (107) se détache du tambour à linge (107).
  14. Procédé (200) selon la revendication 13, caractérisé en ce que l'appareil de traitement du linge (100) comprend un capteur de balourd, en particulier un capteur d'accélération et/ou un capteur de position, qui est configuré pour détecter un déséquilibrage du système oscillant (109),
    dans lequel le procédé (200) comprend en outre l'opération suivante :
    réduction, par la commande (119), de la vitesse de rotation du tambour à linge (107) à une vitesse de rotation minimale (169) pendant une tranche de temps de détection (167) de la période de lavage (149) lorsque le capteur de balourd détecte un déséquilibrage du système oscillant (109), la vitesse de rotation minimale (169) étant en particulier inférieure à la vitesse de rotation de détachement (161).
  15. Procédé (200) selon la revendication 13 ou 14, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un moyen d'amenée de liquide de lavage (118-1, 118-2) pour amener du liquide de lavage dans le tambour à linge (107), et en ce que l'activation (201) de l'entraînement de tambour (123) pendant la tranche de temps maximale (151) de la période de lavage (149) et/ou l'activation (203) de l'entraînement de tambour (123) pendant la tranche de temps de tambour (153) de la période de lavage (149) comprend en outre l'activation du moyen d'amenée de liquide de lavage (118-1, 118-2) afin d'amener du liquide de lavage dans le tunnel de linge (137) formé à l'intérieur du tambour à linge (107).
EP20754241.6A 2019-08-29 2020-08-10 Appareil de traitement de linge comprenant un dispositif de commande Active EP4022118B1 (fr)

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PCT/EP2020/072367 WO2021037536A1 (fr) 2019-08-29 2020-08-10 Appareil de traitement de linge comprenant un dispositif de commande

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US5887456A (en) * 1995-08-30 1999-03-30 Sharp Kabushiki Kaisha Drum type drying/washing machine
DE10326551A1 (de) * 2003-06-12 2005-01-05 BSH Bosch und Siemens Hausgeräte GmbH Wasch- und Spülverfahren für eine Waschmaschine
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WO2013161252A1 (fr) * 2012-04-23 2013-10-31 パナソニック株式会社 Machine à laver à tambour
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DE102017219042A1 (de) * 2017-10-25 2019-04-25 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

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WO2021037536A1 (fr) 2021-03-04
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DE102019213015A1 (de) 2021-03-04
CN114341419A (zh) 2022-04-12

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