EP4022118A1 - Wäschepflegegerät mit einer steuerung - Google Patents
Wäschepflegegerät mit einer steuerungInfo
- Publication number
- EP4022118A1 EP4022118A1 EP20754241.6A EP20754241A EP4022118A1 EP 4022118 A1 EP4022118 A1 EP 4022118A1 EP 20754241 A EP20754241 A EP 20754241A EP 4022118 A1 EP4022118 A1 EP 4022118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- drum
- 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.)
- Granted
Links
- 238000005406 washing Methods 0.000 claims abstract description 157
- 239000007788 liquid Substances 0.000 claims abstract description 122
- 238000000034 method Methods 0.000 claims abstract description 40
- 230000010355 oscillation Effects 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 10
- 230000001133 acceleration Effects 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 6
- 238000009736 wetting Methods 0.000 description 12
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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 controller.
- the washing liquid supplied 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 received in the laundry drum cannot be ensured in all operating states.
- DE 19531 656 A1 discloses a method for regulating a spin speed of a washing machine.
- DE 102013 104075 A1 discloses a method for operating a washing machine and a washing machine.
- the object on which the invention is based is to specify a laundry care device in which a laundry tunnel is formed within the laundry received in the laundry drum 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 mount the laundry care device such that it can swing, a drum drive for rotating the laundry drum during a washing period, and a controller for controlling the drum drive, wherein the controller is designed to activate the drum drive during a maximum time segment 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 controller is designed to activate the drum drive during a drum time segment of the washing period following the maximum time segment in order to rotate the laundry drum at a drum speed, the drum speed being lower than the resonance speed of the laundry drum and greater than a The detachment speed of the
- the laundry tunnel can be kept stable within the rotating laundry drum for a longer period of time, so that the laundry remains compressed inside the laundry drum and is available for further treatment steps, e.g. wetting the laundry with washing liquid.
- rotating the laundry drum at a speed that is less than or equal to the resonance speed is often not sufficient in conventional laundry care devices to ensure that the laundry is fully applied to the laundry drum.
- control of the laundry care device is designed to increase the speed during the maximum period of time to the maximum speed in order to ensure that the laundry is completely placed on the laundry drum even with large laundry loads. If the control in the laundry care device according to the present disclosure then reduces the speed of the laundry drum to the drum speed during the drum period, the laundry tunnel can be effectively formed in the laundry drum or a laundry tunnel that has formed can be maintained.
- the drum speed is greater than the detachment speed prevents the laundry from collapsing again, since the detachment 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 lay against the laundry drum .
- the drum speed which is greater than the detachment speed, it is ensured that the laundry lies against the laundry drum.
- 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.
- drum speed is lower than the resonance speed, it is ensured 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, and that a through passage of the resonance speed caused resonant rocking of the oscillation 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 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 Clothes dryer.
- a laundry care device is understood to mean a household laundry care device. So a laundry care device, which is used in the context of housekeeping, and with which laundry is treated in household quantities.
- the laundry care device has a weight sensor which is designed to detect a weight of laundry received in the laundry drum, and the controller is designed to activate the drum drive during the maximum period of time 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 in particular corresponding to half of the maximum laundry load of the laundry drum.
- Half of the maximum laundry load of the laundry drum for example, 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 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.
- control is designed to activate the drum drive during a pre-time segment 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 detachment speed and lower than the resonance speed of the laundry drum, with the control being designed in particular is during the To activate a washing liquid supply device of the laundry care device early on in order to supply washing liquid into the rotating laundry drum and to prewet the laundry in the laundry drum.
- a laundry tunnel can be formed within the laundry drum by rotating the laundry drum at the pre-drum speed already during the pre-time period.
- the laundry can already be advantageously prewetted.
- the formation of the laundry tunnel can be improved in the maximum period of time with large loads.
- 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 a washing liquid supply device of the laundry care device, an electrical power value of the pump that is below an electrical reference power value.
- the laundry care device has an imbalance sensor, in particular an acceleration sensor and / or a position sensor, which is designed to detect an imbalance in the oscillating system, the controller being designed to increase the speed of the laundry drum to a minimum speed during a detection time segment of the washing period reduce when the imbalance sensor detects an imbalance in the oscillating system, the minimum speed in particular being lower than the separation speed.
- an imbalance sensor in particular an acceleration sensor and / or a position sensor, which is designed to detect an imbalance in the oscillating system
- the controller being designed to increase the speed of the laundry drum to a minimum speed during a detection time segment of the washing period reduce when the imbalance sensor detects an imbalance in the oscillating system, the minimum speed in particular being lower than the separation speed.
- the controller is designed to stop the rotation of the laundry drum during the detection time segment and / or to change a direction of rotation of the rotating laundry drum when the imbalance sensor detects an imbalance in the oscillating system.
- the controller is designed to limit the maximum speed during the maximum time segment if the imbalance sensor detects an imbalance of the oscillating system during the detection time segment before the maximum time segment.
- the controller is designed to activate the drum drive in order to keep the maximum speed constant during the maximum time segment. This achieves the technical advantage that by constantly maintaining the maximum speed during the maximum time segment, a maximum speed plateau is achieved through which the formation of the laundry tunnel can be reinforced.
- the laundry care device has a washing liquid supply device for supplying washing liquid into the laundry drum
- the controller is designed to operate the washing liquid supply device during the washing period, in particular during the pre-time segment, and / or during the maximum time segment, and / or during the detection time segment, and / or to be activated during the drum period in order to supply washing liquid into the laundry tunnel formed within the laundry drum.
- the washing liquid supply device comprises, in particular, a supply element which is arranged to inject the washing liquid into the laundry tunnel in a directed manner.
- control is designed to activate the washing liquid supply device in a first operating mode in order to supply washing liquid with a first flow rate into the laundry drum, and the 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
- the flow rate which is greater than the first flow rate, is fed 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.
- the technical advantage is achieved that, due to the different flow velocities, they are fed through the washing liquid feed device Washing liquid the washing liquid jet impinges on the laundry delimiting the laundry tunnel at different points of impact, so that different areas of the laundry can advantageously be wetted.
- 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 laundry drum front side of the laundry drum facing the front of the laundry care appliance, and / or the control is designed to set the further flow speed in such a way to determine that the point of impact of the washing liquid is arranged on a laundry drum rear side 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 in stages or continuously.
- 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 trained that To mount the laundry drum and the tub in the laundry care device such that it can swing, a drum drive for rotating the laundry drum during a washing period, and a controller for controlling the drum drive, the method comprising the following method 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 segment of the washing period subsequent to the maximum time segment 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
- the laundry care device has an imbalance sensor, in particular an acceleration sensor and / or position sensor, which is designed to detect an imbalance of the oscillating 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 imbalance sensor detects an imbalance in the oscillating system, the minimum speed in particular being lower than the separation speed.
- an imbalance 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 segment and / or activating the drum drive during the drum time segment of the washing period furthermore includes activating the washing liquid supply device to add washing liquid to the to supply laundry tunnel formed within the laundry drum.
- 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
- FIG. 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
- 5 shows a graphic representation of a laundry care process according to a second embodiment
- 6 shows a graphic representation of a laundry care process according to a third embodiment
- FIG. 7 shows a graphic representation of a laundry care process according to a fourth embodiment
- FIG. 8 shows a schematic representation of a laundry care process according to a fifth 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 for receiving 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 pivotably mounted in the laundry care appliance 100 by an oscillating 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 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 through the drain opening 111 from the tub 105 during a pumping process not shown in FIG. 2 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 Feed 107 again.
- 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 feed element 113 is designed as a feed element 113 extending at an angle.
- 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 arranged in particular in the controller 119.
- the power detection element 131 can in particular be arranged 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 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).
- the pump 117 can in particular comprise two pump units, 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 through the liquid line 115 to the laundry drum 107.
- 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 can be rotated by a drum drive 123, not shown in FIG. 3, about an axis of rotation 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 correlating with the centrifugal acceleration of the laundry 135 due to the rotation of the laundry drum 107 and the laundry mass, which increases as a result of the washing liquid supply.
- 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 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 in FIG. 4 shows the time profile of the rotational speed of a laundry drum 107 rotated by a drum drive 123.
- the washing time period 149 shown in FIG. 4 comprises a maximum time segment 151 and a drum time segment following the maximum time segment 151
- a controller 119 of the laundry care device 100 is designed to activate the drum drive 123 during the maximum time segment 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 device 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 period 153 in order to rotate the laundry drum 107 at a drum speed 159, the drum speed 159 being lower 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 inside 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 received in the laundry drum 107 is released from the laundry drum 107, i.e. the speed of the laundry drum 107 at which the laundry 135 on the laundry drum 107 collapses again.
- drum speed 159 is kept between the resonance speed 157 and the separation speed 161 during the drum time segment 153, a laundry tunnel 137 formed within the laundry 135 can advantageously be maintained in order to use it advantageously for subsequent processes. Due to the drum speed 159, which is lower than the resonance speed 157, according to the present disclosure, in contrast to a long-term exceeding of the resonance speed 157, the energy requirement, the system load, the vibration emissions and the water absorption capacity can advantageously be set according to the present disclosure. This creates a prerequisite for washing without oversaturated laundry or without dead liquor and heating the laundry 135 by 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 are in particular dependent on the weight of the laundry 135 received in the laundry drum 107, the supplied amount of washing liquid 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 graphic representation of a laundry care process according to a second embodiment.
- the second curve 140-2 shown in FIG. 5 shows the time profile of the 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 pre-time segment 163 of the washing period 149 before the maximum time segment 151 in order to rotate the laundry drum 107 during the pre-time segment 163 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 laundry drum 107 is then rotated at the maximum speed 155 during the maximum time segment 151 and at the drum speed 159 during the drum time segment 153.
- the third curve 140-3 shown in FIG. 5 shows the washing liquid supplied to the laundry 135 in the laundry drum 107 by a washing liquid supply device 118-1, in particular a supply element 113, of the laundry care device 100, which washing liquid can either be freshly supplied or driven out of the laundry at the same time . It can be seen from the third curve 140-3 that the washing liquid can be supplied to the laundry 135 during the washing period 149, in particular during the previous period 163, during the maximum 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 graphic representation of a laundry care process according to a third embodiment.
- the third embodiment shown in FIG. 6 corresponds to the first embodiment shown in FIG. 4, except that in FIG. 6 the maximum speed 155 of the laundry drum 107 is maintained constant during the maximum time segment 151, as shown in the fourth curve 140-4.
- FIG. 7 shows a graphic representation of a laundry care process according to a fourth embodiment.
- the sixth curve 140-6 shown in FIG. 7 shows the time profile of the 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 laundry care device 100 here has an imbalance sensor, in particular an acceleration sensor and / or position sensor, which is designed to detect an imbalance in the oscillating system 109 of the laundry care device 100.
- the controller 119 is designed to reduce the speed of the laundry drum 107 to a minimum speed 169 when the imbalance sensor detects an imbalance in the oscillating system 109. In this case, the minimum speed 169 is lower than the separation speed 161.
- the controller 119 is also designed to stop the rotation of the laundry drum 107 when the imbalance sensor detects an imbalance in the oscillating system 109.
- the controller 119 can also change the direction of rotation 133-1, 133-2 of the laundry drum 107 or reverse the laundry drum 107 when an imbalance is detected.
- the controller 119 is also designed, in particular, to limit the maximum speed 155 when the imbalance sensor detects an imbalance in the oscillation system 109.
- the controller 119 is also designed, in particular, to limit the maximum speed 155 when the imbalance sensor detects an imbalance in the oscillation system 109.
- FIG. 8 shows a schematic representation of a laundry care process according to a fifth embodiment.
- FIG. 8 shows a laundry tunnel 137 formed by the rotation of the laundry drum 107, with washing liquid being able to be injected into the laundry tunnel 137 by the washing liquid supply device 118-1, in particular the supply element 113, with different injection curves 171 in FIG 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 period 151 and / or during the drum period 153, in order to supply washing liquid at a first flow rate into the washing drum 107 in a first operating mode, and in order to In at least one further operating mode, washing liquid is fed into the laundry drum 107 at at least one further flow speed, which is greater than the first flow speed, 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 designed in particular 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 laundry drum front 107-1 of the laundry drum 107 facing the front of the laundry care device 100, and the controller 119 is designed in particular that 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 back 107-2 of the laundry drum 107 facing away from the front 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 of the during an interim period To change the washing liquid supply device 118-1, in particular to change it in stages or continuously.
- the first injection curve profile 171-1 results in the first operating mode
- the further injection curve profile 171-2 results in a further operating mode
- an additional further injection curve profile 171-3 results in a further operating mode so that the laundry tunnel 137 can be effectively wetted 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 comprises, 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,
- 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 203 of the drum drive 123 during a drum time segment 153 of the washing period 149 that follows the maximum time segment 151 by the controller 119 in order to rotate the laundry drum 107 at a drum speed 159, the drum speed 159 being lower 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 detaches laundry 135 from laundry drum 107.
- Second process step Activate the drum drive during the drum period
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 |
---|---|---|---|
DE102019213015.1A DE102019213015A1 (de) | 2019-08-29 | 2019-08-29 | Wäschepflegegerät mit einer Steuerung |
PCT/EP2020/072367 WO2021037536A1 (de) | 2019-08-29 | 2020-08-10 | Wäschepflegegerät mit einer steuerung |
Publications (2)
Publication Number | Publication Date |
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EP4022118A1 true EP4022118A1 (de) | 2022-07-06 |
EP4022118B1 EP4022118B1 (de) | 2024-02-14 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20754241.6A Active EP4022118B1 (de) | 2019-08-29 | 2020-08-10 | Wäschepflegegerät mit einer steuerung |
Country Status (5)
Country | Link |
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EP (1) | EP4022118B1 (de) |
CN (1) | CN114341419B (de) |
DE (1) | DE102019213015A1 (de) |
PL (1) | PL4022118T3 (de) |
WO (1) | WO2021037536A1 (de) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4336349A1 (de) * | 1993-10-25 | 1995-04-27 | Bosch Siemens Hausgeraete | Verfahren zum Bestimmen der Masse von nasser Wäsche in einer Wäschetrommel |
DE19531656C2 (de) * | 1995-08-29 | 2002-01-10 | Aeg Hausgeraete Gmbh | Verfahren zur Regelung der Schleuderdrehzahl einer Wäschetrommel |
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 |
CN1683631A (zh) * | 2004-04-12 | 2005-10-19 | 乐金电子(天津)电器有限公司 | 滚筒式洗衣机的脱水控制方法 |
JP4941176B2 (ja) * | 2007-08-24 | 2012-05-30 | パナソニック株式会社 | 洗濯機 |
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 |
KR101506146B1 (ko) * | 2012-02-03 | 2015-03-26 | 삼성전자 주식회사 | 세탁기 및 그 제어 방법 |
WO2013161252A1 (ja) * | 2012-04-23 | 2013-10-31 | パナソニック株式会社 | ドラム式洗濯機 |
DE102013104075A1 (de) * | 2013-04-23 | 2014-10-23 | Miele & Cie. Kg | Verfahren zum Betreiben einer Waschmaschine und Waschmaschine |
DE102014104962A1 (de) * | 2014-04-08 | 2015-10-08 | Miele & Cie. Kg | Wasserzulaufsteuerung und Waschvollautomat |
KR102196182B1 (ko) * | 2014-10-27 | 2020-12-29 | 엘지전자 주식회사 | 세탁기 |
DE102016216391A1 (de) * | 2016-08-31 | 2018-03-01 | BSH Hausgeräte GmbH | Wäschepflegegerät mit einer Umleitvorrichtung |
KR102606118B1 (ko) * | 2016-09-01 | 2023-11-24 | 엘지전자 주식회사 | 세탁장치의 제어방법 |
DE102017219042A1 (de) * | 2017-10-25 | 2019-04-25 | BSH Hausgeräte GmbH | Wäschepflegegerät mit einer Steuerung |
-
2019
- 2019-08-29 DE DE102019213015.1A patent/DE102019213015A1/de active Pending
-
2020
- 2020-08-10 WO PCT/EP2020/072367 patent/WO2021037536A1/de unknown
- 2020-08-10 PL PL20754241.6T patent/PL4022118T3/pl unknown
- 2020-08-10 EP EP20754241.6A patent/EP4022118B1/de active Active
- 2020-08-10 CN CN202080060232.XA patent/CN114341419B/zh active Active
Also Published As
Publication number | Publication date |
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EP4022118B1 (de) | 2024-02-14 |
WO2021037536A1 (de) | 2021-03-04 |
PL4022118T3 (pl) | 2024-06-24 |
DE102019213015A1 (de) | 2021-03-04 |
CN114341419B (zh) | 2024-02-13 |
CN114341419A (zh) | 2022-04-12 |
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