EP4022119A1 - Waschepflegegerät mit einer steuerung - Google Patents
Waschepflegegerät mit einer steuerungInfo
- Publication number
- EP4022119A1 EP4022119A1 EP20757844.4A EP20757844A EP4022119A1 EP 4022119 A1 EP4022119 A1 EP 4022119A1 EP 20757844 A EP20757844 A EP 20757844A EP 4022119 A1 EP4022119 A1 EP 4022119A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- drum
- speed
- washing liquid
- designed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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 device with a controller.
- a conventional laundry care device different methods are used for wetting the laundry received in the laundry drum.
- the rotating laundry drum is immersed in washing liquid, which is received in the tub of the laundry care device, in order to enable the laundry to be wetted.
- washing liquid which is received in the tub of the laundry care device.
- a drum washing machine is disclosed in DE 19641309 B4.
- DE 102014 104962 A1 discloses a water supply control and a fully automatic washing machine.
- the object on which the invention is based is to provide a laundry care device in which complete wetting of the laundry received in the laundry drum is ensured during a laundry care process.
- the object according to the invention is achieved by a laundry care device, with a tub for holding washing liquid, a washing drum for holding laundry, the washing drum being arranged in the tub, an oscillating system which is designed to hold the washing drum and the tub in to swing the laundry care device, a drum drive for rotating the laundry drum, a Washing liquid supply device for supplying washing liquid into the laundry drum during a washing period, and a controller for controlling the drum drive and the washing liquid supply device, the controller being 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 to a 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 differs from the The laundry drum releases, the resonance speed being a speed of the laundry drum at which an oscillation frequency of the oscillation system corresponds
- a laundry tunnel is created in the rotating laundry drum by centrifugal forces acting on the laundry, by means of which the laundry received in the rotating laundry drum is pressed against the laundry drum and the laundry tunnel is thereby formed.
- the laundry tunnel is understood to mean 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 against a jacket of the laundry drum.
- the targeted distribution of the laundry on the jacket of the laundry drum creates a cavity within the batch of laundry, which is referred to as a laundry tunnel.
- rotating the laundry drum at the drum speed which is lower than the resonance speed and greater than the detachment speed, is sufficient to ensure that the laundry is fully applied to the laundry drum and to form a laundry tunnel.
- the drum speed is greater than the detachment speed prevents the laundry from becoming detached from the laundry drum and collapsing again. Since the detachment speed is the maximum speed of the laundry drum at which the laundry is released from the laundry drum, the fact that the drum speed exceeds the detachment speed ensures that the laundry rests against the drum due to the centrifugal force acting on it.
- the drum speed is lower than the resonance speed ensures in a possible subsequent wetting process that washing liquid injected into the laundry tunnel is not immediately driven out again radially, but remains in the laundry for a sufficient wetting period.
- the vibrations of the laundry care device can be reduced, since resonant rocking of the laundry drum or the tub is prevented by the swinging mounting 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 separation speed is below 80 rpm.
- a laundry care device is understood to mean a device which 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. So a laundry care device, which in the Is used within the framework of housekeeping and with which laundry is treated in normal household quantities.
- control is designed to activate the drum drive during a maximum time segment of the washing period before the drum time segment in order to rotate the laundry drum at a maximum speed, the maximum speed being greater than the resonance speed, the control being designed in particular to operate the washing liquid supply device during of the maximum period of time to supply washing liquid to the laundry received in the laundry drum.
- washing liquid supply device supplies washing liquid in particular to the laundry during the maximum time segment, effective wetting of the laundry can be ensured during the formation of the laundry tunnel during the maximum time segment and also during the subsequent drum segment.
- the laundry care device has a weight sensor which is designed to detect a weight of laundry received in the laundry drum, the controller being designed to activate the drum drive during the maximum period of time in order to rotate the laundry drum at a maximum speed when the weight of the laundry detected by the weight sensor exceeds a weight threshold value, and / or the controller is designed to activate the drum drive directly during the drum time segment, in particular without previously activating the drum drive during the maximum time segment in order to rotate the laundry drum at a drum speed, if that by the Weight sensor detected weight falls below a weight threshold value, wherein the weight threshold value corresponds in particular to half of the maximum laundry load of the laundry drum.
- the control first carries out the maximum time segment before the speed of the laundry drum can then be reduced to the drum speed during the drum time segment 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 received in the laundry drum.
- the weight sensor is a sensor which is designed to detect a lowering of the oscillating system within the laundry care device in order to detect the weight of the laundry received 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 received in the laundry drum.
- the controller is designed to activate the drum drive during a pre-time segment of the washing period before the drum time segment, in particular before the maximum time segment, in order to rotate the laundry drum at a pre-drum speed, the pre-drum speed being greater than the separation speed and lower than the resonance speed of the Is laundry drum, and wherein the control is designed in particular to activate the washing liquid supply device during the pre-time section in order to supply washing liquid into the rotating washing drum and prewetting the laundry in the washing drum.
- washing liquid supply device an advantageous pre-wetting of the laundry can already take place, so that the pre-wetted laundry then more easily forms a laundry tunnel during the maximum time segment due to the increased weight of the laundry.
- the pre-drum speed corresponds to the drum speed or if the pre-drum speed differs from the drum speed.
- the controller is designed to end the early 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 terminate the early 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 device, an electrical power value of the pump that is below an electrical reference power value.
- control system is designed to end the pre-time segment when an imbalance of the oscillating system detected by an imbalance sensor of the laundry care device does not change any further.
- control is designed to stop the rotation of the laundry drum during the pre-time section and / or to change a direction of rotation of the rotating laundry drum in order to redistribute the laundry in the washing drum during the pre-time section, so that, for example, items of laundry that have not yet been wetted, be moved into a front area of the laundry drum, so that this can then also be wetted when the pre-time period is continued.
- the laundry care device has an imbalance sensor, in particular an acceleration sensor or position sensor, which is designed to detect an imbalance in the oscillation system, the controller being designed to end the early period when the imbalance sensor detects an imbalance in the oscillation system.
- the unbalance sensor is in particular an acceleration sensor that detects the acceleration of the oscillating system in all three spatial directions, or the unbalance sensor is in particular a position sensor that detects the displacement of the oscillating system in all three spatial directions, the respective accelerations or the displacement in the three spatial directions can be compared with corresponding reference values in order to detect an imbalance in the oscillating system.
- control is designed to activate the drum drive during at least one further drum time segment of the washing period following the drum time segment in order to rotate the laundry drum at a further drum speed, the further drum speed being lower than the resonance speed of the laundry drum, and that the Control is designed in particular, during the at least one further drum period of time Activate washing liquid supply device to supply washing liquid into the rotating laundry drum.
- the laundry tunnel within the laundry can advantageously be maintained, so that further washing liquid can be supplied in order to advantageously wet the laundry.
- the at least one further drum time segment comprises a plurality of drum time segments, so that washing liquid can be supplied to the laundry during a plurality of further filling steps.
- control is designed to activate the drum drive between the drum period and the at least one further drum period and / or between successive further drum 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 detachment speed of the laundry drum, or the further drum speed is lower than the resonance speed and greater than the detachment speed of the laundry drum.
- the controller is designed to activate the drum drive during a further maximum time segment following the at least one further drum time segment in order to rotate the laundry drum at a further maximum speed, the further maximum speed being greater than the resonance speed.
- control can determine an initial amount of washing liquid as a function of a load of laundry in the laundry care appliance, as a function of a type of fabric of the laundry and / or as a function of a program selection of the laundry care appliance, the initial amount of washing liquid being determined by the washing liquid supply device before the drum period , especially before the premature period of the laundry is supplied.
- the number of subsequent filling steps can 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 deceleration period following the drum period in order to rotate the laundry drum at a deceleration speed, the deceleration speed being lower than the drum speed and greater than the separation speed, the control being implemented 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 measure the number of activations of the washing liquid supply device and / or the amount of washing liquid supplied during the deceleration time period as a function of a weight of the laundry received in the laundry drum and / or as a function of a weight sensor of the laundry care device a user of the laundry care device selected laundry care program, and / or depending on a textile type of laundry determined by a textile detection device, and / or depending on a device for determining the 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 re-form a laundry tunnel within the laundry received in the laundry drum, and / or is the controller is designed to interrupt the deceleration period during an intermediate period in order to activate the drum drive in order 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 out of the tub and to supply the washing liquid again to the laundry in the laundry drum, the controller being designed to activate the pump during the washing period in order to add washing liquid to the laundry to feed the laundry 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 in a directed manner into the laundry drum, in particular into a laundry tunnel formed in the laundry drum.
- Washing liquid supply device in particular fresh water supply device, connected to the tub by a supply line, the control being 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 tub.
- the object of the invention is achieved by a method for caring for laundry in a laundry care device, the laundry care device having a tub for receiving washing liquid, a laundry drum for receiving laundry, the laundry drum being arranged in the tub, a vibrating system which is designed to swing 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 into 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 time portion of the washing period by the controller to the To rotate the laundry drum at a drum speed in order 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 is released from the laundry drum, and the resonance speed is a speed of
- the method according to the second aspect is carried out with low loading quantities.
- the method comprises the activation of the drum drive during a maximum time segment of the washing period before the drum time segment 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 set up during the maximum period of time and maintained during the subsequent drum period.
- inventions characterized as advantageous embodiments for the laundry care device according to the first aspect are likewise advantageous embodiments for the method according to the second aspect.
- FIG. 1 shows a schematic view of a laundry care device
- FIG. 2 shows a schematic view of a laundry care device with a control
- 3 shows a schematic representation of the supply of washing liquid into a laundry tunnel formed in the laundry drum
- FIG. 4 shows a graphic representation of a laundry care process according to a first embodiment
- Figs. 5a-5c are graphical representations of a laundry care process according to a second, third or fourth embodiment
- FIG. 6 shows a graphic representation of a laundry care process according to a fifth embodiment
- FIG. 7 shows a graphic representation of a laundry care process according to a sixth embodiment
- FIG. 8 shows a schematic representation of a laundry care process according to a seventh embodiment
- FIG. 9 shows a schematic representation of a method for caring for laundry in a laundry care device.
- FIG 1 shows a schematic view of a general laundry care appliance 100, such as a washing machine.
- the laundry care device 100 comprises a rinsing 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 comprises 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 receiving washing liquid, and has a laundry drum 107 arranged in the tub 105 for receiving laundry.
- the tub 105 and the laundry drum 107 arranged in the tub 105 are only shown schematically by an oscillating system 109 of the laundry care device 100 on one in FIG. 2 illustrated device housing 102 of the laundry care device 100 pivotably mounted.
- the tub 105 has a drain opening 111.
- the laundry care device 100 has a feed element 113.
- the discharge opening 111 is fluidically connected to the supply element 113 by 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 pump washing liquid out of the tub 105 through the drain opening 111 during a pumping process (not shown in FIG. 2) into the liquid line 115 and feed the pumped 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 around through the liquid line 115 during a laundry care process and fed back to the laundry in the laundry drum 107.
- the liquid line 115, the pump 117 and the supply element 113 are thus 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 in a directed manner into a washing tunnel formed within the washing in the rotating washing drum 107.
- the laundry care device 100 further comprises a controller 119 which is connected to the pump 117 by a first control connection 121 and which is connected to a drum drive 123 for rotating the laundry drum 107 by a second control connection 125.
- the controller 119 is also 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 a rinsing bowl 101, not shown in FIG. 2, of the laundry care device 100 and / or a dispenser in FIG.
- the fresh water connection of the laundry care device 100 (not shown), the controller 119 being designed to activate a wash liquor supply via the dispenser 101 and / or the fresh water connection in order to supply wash liquor and / or fresh water as washing liquid into the laundry drum 107.
- the laundry care device 100 also has 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 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 fluidically connected to the liquid line 115.
- the pump 117 is designed 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 during a pumping process (not shown in FIG. 2).
- FIG 3 shows a schematic representation of the supply of washing liquid into a laundry tunnel formed in the laundry drum.
- FIG. 3 shows a laundry drum 107 of the laundry care device 100, which can be rotated by a drum drive 123, not shown in FIG. 3, about a rotation axis 132 in a first direction of rotation 133-1 and / or a second direction of rotation 133-2.
- An appliance door 103 of the laundry care appliance 100 is shown only in sections.
- the wetting of the laundry 135 accommodated in the laundry drum 107 with washing liquid takes place most quickly if it takes place radially, in particular by pumping or central spraying of washing liquid.
- the formation of a laundry tunnel 137 is necessary, 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.
- an inflow 139 of washing liquid can be fed to the laundry tunnel 137 by a washing liquid supply device 118 - 1, in particular a supply element 113.
- the washing liquid can wet the laundry 135 radially 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 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 is plotted along the ordinate axis 145 as a function of the time indicated along the abscissa axis 147.
- the first curve 140-1 shown in FIG. 4 shows the temporal course of the speed of a laundry drum 107 rotated by a drum drive 123.
- the controller 119 is designed, the drum drive 123 during a drum period 153 of the washing period 149 to rotate the laundry drum 107 at a drum speed 159, the drum speed 159 being greater than a detachment speed 161 of the laundry drum 107 and the drum speed 159 being less than a resonance 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 received 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 detachment speed 161 at which the laundry 135 is released from the laundry drum 107, rotating the laundry drum 107 at the drum speed 159 ensures that the laundry 135 received in the laundry drum 107 is attached to the laundry drum 107 is present.
- the 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 rather Vibrations in the laundry care device 100, which occur when the speed of the laundry drum 107 reaches the resonance speed 157, can be prevented.
- the second curve 140-2 shown in FIG. 4 shows the course over time of an amount 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 washing 135 and can thereby advantageously wet the washing.
- the washing liquid can be supplied during the drum period 153, in particular with a laundry load that is less than half the maximum laundry load of the laundry drum 107, since with such a low laundry load a laundry tunnel 137 is formed when the laundry drum 107 is rotated at drum speed 159 , which is sufficient for an effective wetting of the laundry 135.
- FIGS. 5a, 5b and 5c show graphic representations of a laundry care process according to a second, third and fourth embodiment, respectively.
- the washing period 149 includes, in addition to the drum time segment 153, a maximum time segment 151 beforehand.
- the controller 119 of the laundry care device 100 is designed to activate the drum drive 123 during the maximum time segment 151 in order to set the laundry drum 107 at a maximum speed 155 to rotate, the maximum speed 155 being 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 supply device 118-1 into the laundry tunnel formed 137 supplied in order to wet the laundry 135 advantageously.
- the third embodiment shown in FIG. 5 b corresponds to the second embodiment shown in FIG. 5 a, except that the washing period 149 has a previous period 163 in addition to the drum period 153 and the maximum period 151 before that.
- the controller 119 activates the drum drive 123 to rotate the laundry drum 107 at a pre-drum speed 165, the pre-drum speed 165 being greater than the detachment speed 161 and less than the resonance speed 157 of the laundry drum 107.
- the fifth curve 140-5 shows that the
- Washing liquid supply device 118-1 already supplies washing liquid to the laundry 135 in the laundry drum 107 during the early 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 period 151 and the drum period 153.
- the fourth embodiment shown in FIG. 5c shows a sixth curve 140-6, which shows a speed of a laundry drum 107 during the washing period 149, the washing period 149 not only having the maximum time segment 151 but also a detection time segment 167 extending before the maximum time segment 151.
- the controller 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 entirely, or a direction of rotation 133- 1, 133-2 of the laundry drum 107 change.
- the minimum speed 169 is in particular lower than the separation speed 161.
- an advantageous mixing of the laundry 135 during the laundry care process can be ensured in order to redistribute the laundry 135 in the laundry drum 107, for example during the early period 163, so that, for example, items of laundry that have not been wetted before can be a front area of the laundry drum 107 can be moved, so that this can then also be wetted when the previous period 163 is continued.
- FIG. 6 shows a graphic representation of a laundry care process according to a fifth embodiment.
- the seventh curve 140-7 shown in graph a) in FIG. 6 shows the time profile of the rotational speed of the laundry drum 107 during the washing period 149.
- the eighth curve 140-8 shown in graph b) of FIG. 6 shows the time profile of the washing liquid, in particular fresh water, supplied to the tub 105 by a further washing liquid supply device 118-2.
- the graphic Representation c) of the ninth curve 140-9 shown in FIG. 6 shows the time profile of the washing liquid fed into the laundry drum 107 by the washing liquid supply device 118-1.
- the washing period 149 has a pre-time segment 163, during which the laundry drum 107 is rotated at a pre-drum speed 165, the washing period 149 has a maximum time segment 151 following the pre-time segment 163, during which the laundry drum 107 is rotated at a maximum speed 155, and the washing period 149 has a drum time segment 153 following the maximum time segment 151, during which the laundry drum 107 is rotated at a drum speed 159.
- washing liquid in particular fresh water
- washing liquid supply device 118-2 As can be seen from illustration b) in FIG. 6, washing liquid, in particular fresh water, is supplied to the tub 105 by the further washing liquid supply device 118-2, and as can be seen from illustration c) in FIG. 6, washing liquid supply device 118-1 Washing liquid is supplied to the laundry tunnel 137 formed in the laundry drum 107, so that the laundry 135 is uniformly wetted.
- the drum time segment 153 is followed by a plurality of further drum time segments 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 period 153, further filling steps of washing liquid can be carried out by the washing liquid supply device 118-1 and / or by the further washing liquid supply device 118-, as shown in illustration b) and c) of FIG. 2 can be supplied without having to increase the speed of the laundry drum 107.
- the further drum speed 159-2 can in particular be lower than the resonance speed 157 and higher than the separation speed 161 and / or the further drum speed 159-2 can in particular be lower than the resonance speed 157 and lower than the separation speed 161.
- the further drum time segments 153-2 are followed by a further maximum time segment 151-2, during which the laundry drum 107 is rotated at a further maximum speed 155-2 in order to recompress the laundry 135 and the washing liquid released as a result to be distributed again in the laundry 135 in a subsequent further drum 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 device 100, depending on a type of textile of the laundry 135 and / or depending on a program selection of the laundry care device 100, the initial amount of washing liquid being determined by the Washing liquid supply device 118-1 is supplied to the laundry 135 before the drum period 153, in particular before the early period 163.
- the number of subsequent filling steps can be reduced, which leads to a shorter program duration and possibly to a lower number of resonance passes.
- the washing period 149 has a pre-time segment 163, a maximum time segment 151 and a drum time segment 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 braking speed 173 which is lower than the drum speed 159 but greater than the detachment speed 161, so that the laundry 135 continues to be held in an annular movement, however, it does not completely collapse while washing liquid is supplied to the laundry 135 in the laundry drum 107 by the washing liquid supply devices 118-1, 118-2.
- the controller 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 type of textile determined by the laundry care device 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 first have to be braked to zero before each filling step, as shown in FIG. 6 illustrated embodiment.
- the laundry tunnel 137 can thus be kept longer so that it has to be rebuilt less frequently. When building up again, further resonance passages 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 respective amount of washing liquid supplied can be adapted to the circumstances mentioned.
- FIG. 8 shows a graphic representation of a laundry care process according to a seventh embodiment.
- a plurality of filling steps for supplying washing liquid into the laundry tunnel 137 is carried out during the braking period 171, whereby the washing liquid supply device 118-1 ensures is that the washing liquid is completely absorbed by the laundry 135 in each case.
- the controller 119 is designed to interrupt the deceleration time segment 171 during an intermediate time segment 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 device.
- the method 200 comprises, as a first method step, the activation of the drum drive 123 during a drum time segment 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 received in the laundry drum 107 , the drum speed 159 being greater than one
- the resonance speed 157 is a rotational 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 washing drum 107.
- the supply of washing liquid at a lower speed has an advantageous effect on the energy requirement, the system load, the vibration emission and the water absorption behavior.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019213014.3A DE102019213014A1 (de) | 2019-08-29 | 2019-08-29 | Wäschepflegegerät mit einer Steuerung |
| PCT/EP2020/072371 WO2021037538A1 (de) | 2019-08-29 | 2020-08-10 | Waschepflegegerät mit einer steuerung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4022119A1 true EP4022119A1 (de) | 2022-07-06 |
| EP4022119B1 EP4022119B1 (de) | 2024-04-24 |
Family
ID=72145361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20757844.4A Active EP4022119B1 (de) | 2019-08-29 | 2020-08-10 | Waschepflegegerät mit einer steuerung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4022119B1 (de) |
| CN (1) | CN114341420B (de) |
| DE (1) | DE102019213014A1 (de) |
| WO (1) | WO2021037538A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021202228A1 (de) | 2021-03-09 | 2022-09-15 | BSH Hausgeräte GmbH | Wäschepflegegerät mit einer Steuerung |
Family Cites Families (13)
| 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 |
| WO2017005391A1 (de) * | 2015-07-08 | 2017-01-12 | BSH Hausgeräte GmbH | Wäschepflegegerät und wäschepflegeverfahren |
| 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 |
-
2019
- 2019-08-29 DE DE102019213014.3A patent/DE102019213014A1/de not_active Withdrawn
-
2020
- 2020-08-10 WO PCT/EP2020/072371 patent/WO2021037538A1/de not_active Ceased
- 2020-08-10 CN CN202080060249.5A patent/CN114341420B/zh active Active
- 2020-08-10 EP EP20757844.4A patent/EP4022119B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021037538A1 (de) | 2021-03-04 |
| CN114341420B (zh) | 2024-04-30 |
| DE102019213014A1 (de) | 2021-03-04 |
| CN114341420A (zh) | 2022-04-12 |
| EP4022119B1 (de) | 2024-04-24 |
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