EP4269682A1 - Appareil d'entretien du linge doté d'une commande et procédé de fonctionnement de l'appareil d'entretien du linge - Google Patents

Appareil d'entretien du linge doté d'une commande et procédé de fonctionnement de l'appareil d'entretien du linge Download PDF

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Publication number
EP4269682A1
EP4269682A1 EP23160184.0A EP23160184A EP4269682A1 EP 4269682 A1 EP4269682 A1 EP 4269682A1 EP 23160184 A EP23160184 A EP 23160184A EP 4269682 A1 EP4269682 A1 EP 4269682A1
Authority
EP
European Patent Office
Prior art keywords
period
temperature
laundry
tub
washing liquid
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.)
Pending
Application number
EP23160184.0A
Other languages
German (de)
English (en)
Inventor
Daniel Flohe
Katrin Peisert
Yi-chun SHI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4269682A1 publication Critical patent/EP4269682A1/fr
Pending legal-status Critical Current

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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 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F34/04—Signal transfer or data transmission arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices
    • 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
    • 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
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F2105/42—Detergent or additive 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/20—Parameters relating to constructional components, e.g. door sensors
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors

Definitions

  • the present invention relates to a laundry care device with a control.
  • incorrect operation by the user of the laundry care appliance may occur.
  • Corresponding incorrect operations include, in particular, the selection of a laundry care program that is unsuitable for the laundry care process, overloading the laundry drum with laundry, reloading laundry while a laundry care program is running, changing the laundry care program, manually supplying washing liquid, and / or other incorrect operations.
  • the object according to the invention is achieved by a laundry care device, with a tub for holding washing liquid, a level sensor for detecting a level of washing liquid in the tub, a laundry drum for receiving laundry, the laundry drum being arranged in the tub, a drum drive for rotating the laundry drum, a temperature sensor for detecting a temperature of the drum drive, a pump for pumping washing liquid from the tub, and a controller, which is connected in terms of control technology to the Drum drive, the fill level sensor, the temperature sensor and the pump is connected, wherein the controller is designed to detect a temperature of the drum drive by means of the temperature sensor and a fill level of washing liquid in the tub by means of the fill level sensor during an overheat detection period, and wherein the controller is designed, to activate the pump for pumping out washing liquid from the tub during an adaptation period following the overheating detection period if the temperature of the drum drive detected during the overheating detection time period is above a temperature threshold and the level of washing liquid in the tub detected during the overheating detection time is
  • the overheating detection time period can in particular be a time period of a laundry care program stored in the control of a plurality of laundry care programs of the laundry care device, so that a possible overheating problem of the drum drive can be recognized early by the control.
  • the overheating detection period can be a period of any laundry care program stored in the control.
  • the temperature sensor which detects the temperature of the drum drive, is in particular in thermally conductive contact with the drum drive.
  • the temperature sensor is arranged in or on the drum drive and thereby enables the control to determine the temperature of the drum drive in real time.
  • the temperature sensor can also be a sensor unit that can determine the temperature of the drum drive indirectly, for example via a resistance measurement of one or more windings or via a value stored in the controller Calculation model that evaluates one or more motor parameters recorded by the sensor unit with regard to the temperature of the drum drive.
  • the controller compares the temperature detected by the temperature sensor with the temperature threshold value, the temperature threshold value being in particular a predetermined temperature threshold value, which is stored in the controller, for example, depending on the type of laundry care device used and/or the laundry care program being executed.
  • the control recognizes a possible criterion that indicates an impending overheating of the drum drive.
  • the temperature threshold value is in particular lower, in particular approximately 10 ° C lower, than a limit temperature threshold value, which corresponds to a temperature value at which damage to the drum drive is possible.
  • the sufficient distance between the temperature threshold and the limit temperature threshold ensures that if the temperature threshold is exceeded, the controller still has sufficient time to intervene and prevent the temperature from reaching the limit temperature threshold.
  • a further criterion which indicates an impending overheating of the drum drive is when the control determines that a level value of washing liquid in the tub detected by the level sensor exceeds a level threshold value stored in the control, the level threshold value being in particular a predetermined level threshold value, which, for example is stored in the control depending on the type of laundry care device used and/or the laundry care program being executed.
  • a correspondingly high level value of washing liquid in the tub, determined by the control, in combination with a certain high temperature value of the drum drive during the overheat detection period enables the control to draw conclusions about excessive stress on the drum drive due to the level of washing liquid in the tub being too high.
  • the controller activates the pump to pump out washing liquid from the tub and thereby reduce the level of washing liquid in the tub.
  • a laundry care device is a device that is used to care for laundry, such as a washing machine 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.
  • control is designed to activate the drum drive for rotating the laundry drum at an adjusted speed during the adaptation period and to activate the pump for pumping out washing liquid from the tub when the temperature of the drum drive detected during the overheat detection period is above the temperature threshold and the level of washing liquid in the tub detected during the overheat detection period is above the level threshold value.
  • control is designed to activate the drum drive to rotate the laundry drum at an increased speed during the adaptation period, the increased speed being increased compared to a standard speed of a previous laundry care program.
  • the standard speed of the previous laundry care program in particular includes a speed less than or equal to a system speed at which the laundry picked up in the laundry drum is applied to the rotating laundry drum.
  • the increased speed at which the laundry drum is rotated during the adaptation period is greater than the standard speed of the previous laundry care program, it is achieved during the adaptation period that the laundry picked up in the laundry drum is applied particularly evenly to the rotating laundry drum, and thus that The occurrence of agglomerations of laundry in the laundry drum is reduced. This means that the laundry is placed on the rotating laundry drum as a homogeneous laundry ring and power peaks in the drum drive resulting from imbalances can be reduced.
  • the increased speed is between 1.3 and 1.5 times as high as the standard speed, in particular the application speed, of the previous laundry care program. If the application speed of the previous laundry care program is, for example, 60 revolutions per minute, the increased speed is between 80 revolutions per minute and 90 revolutions per minute.
  • control is designed to activate the pump for pumping out washing liquid from the tub and in particular also the drum drive for rotating the laundry drum at the adapted speed during the adaptation period if the temperature of the drum drive detected during the overheat detection period is above the temperature threshold and the level detected during the overheat detection period of washing liquid in the tub is above the fill level threshold value and an electrical performance parameter, in particular motor current and / or motor torque, of the drum drive detected by the controller is above a performance threshold value.
  • the control has a further parameter available, which enables the control to determine during the overheat detection period that there is a possible risk of the drum drive overheating .
  • the corresponding high power consumption of the drum drive indicates a high load on the drum drive.
  • control is designed to activate the pump for pumping out washing liquid from the tub during the adaptation period when the drum drive rotates the laundry drum at the adapted speed.
  • control is designed to deactivate the pump again during the adaptation period if a second filling level of washing liquid in the tub detected during the adaptation period is equal to or smaller than the filling level threshold value.
  • the controller is designed to activate the pump for pumping out washing liquid from the tub during a fill level check period following the adaptation period if a third fill level of washing liquid in the tub detected during the fill level check period is above a second fill level threshold value, whereby the second fill level threshold value is greater than the first fill level threshold value, wherein the controller is designed to deactivate the drum drive during the fill level check period in order not to rotate the laundry drum during the fill level check period.
  • the pump for pumping out washing liquid from the tub is activated again during the level check period in order to further reduce the level of washing liquid in the tub.
  • control is designed to activate the drum drive for rotating the laundry drum at the adjusted speed during a rotation period following the filling level checking period, with the rotation period being followed in particular by a further filling level checking period.
  • the controller is designed to repeat the fill level check period until the third fill level of washing liquid detected during the fill level check period is less than the second fill level threshold value.
  • the controller is designed to activate the drum drive for rotating the laundry drum at a standard speed of the laundry care program stored in the controller during a temperature checking period following the fill level checking period and/or rotation period, the controller being designed to activate the drum drive during the temperature checking period by means of the Temperature sensor to detect a temperature increase in the drum drive.
  • control detects any possible overheating of the drum drive that may still be present, or alternatively, based on the detected temperature increase, the control can ensure that the previous steps effectively eliminate a possible overheating of the drum drive could be prevented and the laundry care program can then be continued at the standard speed.
  • the temperature increase is represented by the quotient of ⁇ T/ ⁇ t, where ⁇ t corresponds to the duration of the temperature check period, and where ⁇ T corresponds to the difference between the maximum detected temperature and the minimum detected temperature during the temperature check period.
  • control is designed to activate the pump for pumping out washing liquid from the tub and in particular also the drum drive for rotating the laundry drum at the adjusted speed during a second adaptation period following the temperature check period and in particular also the drum drive for rotating the Activate the laundry drum at the adjusted speed if the temperature rise detected during the temperature check period exceeds a temperature rise limit.
  • control can use an advantageous criterion as to whether the drum drive is at risk of overheating or not.
  • the control reacts to this by carrying out a second adaptation period, during which the pump pumps out washing liquid again and during which, in particular, the laundry drum is rotated again at the adjusted speed .
  • control is designed to activate the pump for pumping out washing liquid from the tub and in particular also the drum drive for rotating the laundry drum at the adapted speed during a second fill level checking period following the second adaptation period, if during the second The fourth level of washing liquid in the tub detected during the level check period is above a third level threshold, the third level threshold being greater than the second level threshold.
  • the controller can advantageously determine whether the activation of the pump carried out during the second adaptation period is sufficient was to sufficiently reduce the level of washing liquid in the tub.
  • the controller is designed to activate the drum drive for rotating the laundry drum at a standard speed of a laundry care program stored in the controller during a second temperature checking period following the second fill level checking period, wherein the controller is designed to operate during the second temperature checking period by means of the temperature sensor to detect an increase in temperature of the drum drive.
  • the controller is designed to deactivate the drum drive and to transmit a warning message to a warning message output device of the laundry care appliance when the temperature increase detected during the second temperature check period exceeds the temperature increase limit value.
  • the controller is designed to execute the laundry care program stored in the controller during a normal laundry care segment following the temperature check period or second temperature check period, and to activate the drum drive for rotating the laundry drum at a standard speed of the laundry care program stored in the controller when the during the first or second temperature check period detected temperature rise is equal to or less than the temperature rise limit.
  • the object according to the invention is achieved by a method for avoiding overheating of a drum drive in a laundry care appliance, wherein the laundry care appliance has a tub for holding washing liquid, a level sensor for detecting a level of washing liquid in the tub, a laundry drum for holding laundry , wherein the laundry drum is arranged in the tub, a drum drive for rotating the laundry drum, a temperature sensor for detecting a temperature of the drum drive, a pump for pumping washing liquid from the tub, and a controller, which is connected in terms of control technology to the drum drive, the fill level sensor, the temperature sensor and the pump, the method having the following method steps: detecting a temperature of the drum drive by means of the temperature sensor and a level of washing liquid in the tub by means of the level sensor by the controller during the overheat detection period, activating the pump for pumping out washing liquid the tub by the controller during an adjustment period following the overheat detection period if the temperature of the drum drive detected during the overheat detection period is above a temperature threshold
  • 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 laundry care substance, such as 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 laundry care device 100 has a drum drive 109 for rotating the laundry drum 107.
  • the tub 105 has a drain opening 111.
  • the drain opening 111 is through a Liquid line 115 is fluidly connected to a pump 117.
  • 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 further pump it out of the laundry care appliance 100 through an outlet line 125.
  • the laundry care appliance 100 has a washing liquid supply device 118-1 for supplying washing liquid into the tub 105, the washing liquid supply device 118-1 being connected to the tub 105 by a supply line 118-2.
  • the washing liquid supply device 118-1 includes 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 device 100, wherein a controller 119 of the laundry care device 100 is designed to activate a washing liquid inlet via the dispenser tray 101 and / or the fresh water connection in order to supply washing liquid and / or fresh water as washing liquid into the laundry drum 107 and the tub 105.
  • the laundry care appliance 100 has a fill level sensor 120 arranged in the tub 105, which is designed to detect a fill level of washing liquid in the tub 105, the fill level sensor 120 being connected to the controller 119 in terms of control technology.
  • the laundry care device 100 also has a temperature sensor 123 for detecting a temperature of the drum drive 109, the temperature sensor 123 being connected to the controller 119 in terms of control technology.
  • the temperature sensor 123 is arranged in or on the drum drive 109.
  • the laundry care device 100 further comprises the control 119, which is connected to the pump 117, which is connected to the drum drive 109, which is connected to the washing liquid supply device 118-1, which is connected to the fill level sensor 120, and which is connected to the temperature sensor 123, each through a control connection 121.
  • Fig. 3 shows a schematic view of a laundry care process according to an embodiment.
  • First curve 127 shown shows along the ordinate axis 129 a temperature of the drum drive 109 of the laundry care appliance 100 detected by a temperature sensor 123 as a function of the time, which is plotted along the abscissa axis 131.
  • FIG. 3 The further illustrations shown each show a filling level 133 of washing liquid in a tub 105 of the laundry care appliance 100 at correspondingly different time periods.
  • the second curve 135 shown shows along the ordinate axis 137 a rotational speed of a laundry drum 107 of the laundry care appliance 100 caused by the drum drive 109 as a function of the time, which is plotted along the abscissa axis 139.
  • the controller 119 executes a laundry care program and activates the drum drive 109 to rotate the laundry drum 107 at a standard speed 143 of the laundry care program stored in the controller 119.
  • the corresponding standard speed 143 corresponds to a washing speed, which is preferably less than or equal to an application speed of the laundry drum 107, at which the laundry picked up in the laundry drum 107 is currently in contact with the laundry drum 107.
  • the temperature sensor 123 detects the temperature of the drum drive 109 during the overheat detection period 141.
  • the level sensor 120 detects a level 133 of washing liquid in the tub 105, as shown in the left illustration.
  • the controller 119 detects that at the end of the overheat detection period 141, the detected temperature of the drum drive 109 is above a temperature threshold 145.
  • the temperature threshold 145 is slightly, in particular approximately 10° C., below a limit temperature threshold 147 in order to ensure that damage to the drum drive 109 can be ruled out when the temperature threshold 145 is reached.
  • the temperature threshold value 145 and limit temperature threshold value 147 are stored in the controller 119 in a predetermined manner, in particular depending on the type of laundry care appliance and/or depending on the laundry care program being executed.
  • the controller 119 recognizes that at the end of the overheating detection period 141 the in Fig. 3 Detected level 133 of washing liquid, which is only shown schematically, is above a level threshold value.
  • the fill level threshold value is stored in the controller 119 in a predetermined manner, in particular depending on the type of laundry care appliance and/or the laundry care program being executed.
  • the controller 119 activates the pump 117 for pumping out washing liquid from the tub 105 and the drum drive 109 during an adjustment period 149 following the overheat detection period 141 Rotate the laundry drum 107 at an adjusted speed 151.
  • the corresponding adjusted speed 151 is above the application speed, and is in particular 1.3 to 1-5 times the application speed depending on the size of the laundry drum 107 and the load quantity of the laundry drum 107. If the application speed is, for example, 60 Revolutions per minute, the adjusted speed 151 is, for example, between 80 revolutions per minute and 90 revolutions per minute.
  • the controller 119 is designed in particular to activate the pump 117 for pumping out washing liquid from the tub 105 during the adaptation period 149 when the drum drive 109 rotates the laundry drum 107 at the adapted speed 151.
  • the controller 119 is in particular designed to deactivate the pump 117 again during the adaptation period 149 if a second fill level 133 of washing liquid in the tub 105 detected during the adaptation period 149 is equal to or smaller than the fill level threshold value.
  • the controller 119 is designed to activate the pump 117 for pumping out washing liquid from the tub 105 during a filling level checking period 153 following the adaptation period 149 if a third filling level 133 of washing liquid in the tub 105 detected during the filling level checking period 153 is above one second fill level threshold value, wherein the second fill level threshold value is greater than the first fill level threshold value.
  • the controller 119 is designed to deactivate the drum drive 109 during the fill level check period 153 in order not to rotate the laundry drum 107 during the fill level check period 153.
  • the standstill of the laundry drum 107 during the fill level checking period 153 ensures that the washing liquid is in a stationary state is located so that an effective level measurement can be carried out during the level checking period 153.
  • the pump 117 is activated to pump out washing liquid from the tub 105.
  • the controller 119 is designed to activate the drum drive 109 for rotating the laundry drum 107 at the adjusted speed 151 during a rotation period 155 following the fill level check period 153, with the rotation period 155 being followed in particular by a further fill level check period 153.
  • the controller 119 is designed to repeat the fill level check period 153 until the third fill level 133 of washing liquid detected during the fill level check period 153 is smaller than the second fill level threshold value.
  • the controller 119 is designed to activate the drum drive 109 for rotating the laundry drum 107 at the standard speed 143 of the laundry care program stored in the controller 119 during a temperature checking period 157 following the fill level checking period 153 and/or rotation period 155.
  • the controller 119 is designed to detect a temperature increase of the drum drive 109 during the temperature check period 157 using the temperature sensor 123.
  • the controller 119 determines the temperature increase by the quotient of ⁇ T/ ⁇ t, where ⁇ t corresponds to the duration of the temperature check period 157, and where ⁇ T corresponds to the difference between the maximum detected temperature and the minimum detected temperature during the temperature check period 157.
  • the controller 119 is designed to activate the pump 117 for pumping out washing liquid from the tub 105 during a second adaptation period 159 following the temperature check period 157 and to activate the drum drive 109 for rotating the laundry drum 107 at the adjusted speed 151 when the Temperature rise detected during the temperature check period 157 exceeds a temperature rise limit.
  • the controller 119 is designed to activate the pump 117 for pumping out washing liquid from the tub 105 during a second filling level checking period 161 following the second adaptation period 159 if a fourth filling level 133 of washing liquid in the tub 105 detected during the second filling level checking period 161 is above a third fill level threshold, wherein the third fill level threshold is greater than the second fill level threshold.
  • the controller 119 is designed to repeat the second fill level check period 163 until the fourth fill level 133 of washing liquid detected during the fill level check period 163 is smaller than the third fill level threshold value.
  • the controller 119 is designed to activate the drum drive 109 for rotating the laundry drum 107 with a standard speed 143 of the laundry care program stored in the controller 119 during a second temperature checking period 163 following the second fill level checking period 161, the controller 119 being designed during the second Temperature check period 163 to detect a temperature increase of the drum drive 109 using the temperature sensor 123.
  • the controller 119 is designed to operate during a period following the second temperature check period 163 and in Fig. 3 normal laundry care section, not shown, to execute the laundry care program stored in the controller 119, and to activate the drum drive 109 for rotating the laundry drum 107 at a standard speed 143 of a laundry care program stored in the controller 119 if the temperature rise detected during the temperature check period is equal to or less than the temperature rise limit value .
  • the selected laundry care program of the laundry care appliance 100 can advantageously be continued without the risk of the drum drive 109 overheating.
  • controller 119 is designed to deactivate the drum drive 109 and to transmit a warning message to a warning message output device of the laundry care device 100 if the temperature increase detected during the second temperature check period 163 exceeds the temperature increase limit value.
  • Fig. 4 shows a schematic representation of a method for avoiding overheating of a drum drive in a laundry care appliance according to one embodiment.
  • the method 200 includes, as a first method step, detecting 201 a temperature of the drum drive 109 by means of the temperature sensor 123 and a fill level 133 of washing liquid in the tub 105 by means of the fill level sensor 120 by the controller 119 during an overheat detection period 141.
  • the method 200 includes, as a second method step, the activation 203 of the pump 117 for pumping out washing liquid from the tub 105 by the controller 119 during an adjustment period 149 following the overheat detection period 141, if the temperature of the drum drive 109 recorded during the overheat detection period 141 is above a temperature threshold 145 and the level 133 of washing liquid in the tub 105 detected during the overheat detection period 141 is above a level threshold in order to avoid overheating of the drum drive 109.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP23160184.0A 2022-04-04 2023-03-06 Appareil d'entretien du linge doté d'une commande et procédé de fonctionnement de l'appareil d'entretien du linge Pending EP4269682A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022203316.7A DE102022203316A1 (de) 2022-04-04 2022-04-04 Wäschepflegegerät mit einer Steuerung und Verfahren zum Betrieb des Wäschepflegegeräts

Publications (1)

Publication Number Publication Date
EP4269682A1 true EP4269682A1 (fr) 2023-11-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP23160184.0A Pending EP4269682A1 (fr) 2022-04-04 2023-03-06 Appareil d'entretien du linge doté d'une commande et procédé de fonctionnement de l'appareil d'entretien du linge

Country Status (3)

Country Link
EP (1) EP4269682A1 (fr)
CN (1) CN116892103A (fr)
DE (1) DE102022203316A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000102694A (ja) * 1998-09-30 2000-04-11 Sanyo Electric Co Ltd 洗濯機
EP3085825A1 (fr) 2015-04-21 2016-10-26 Miele & Cie. KG Procede de fonctionnement d'un lave-linge et lave-linge
DE102016225146B3 (de) * 2016-12-15 2018-05-03 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102017219042A1 (de) * 2017-10-25 2019-04-25 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000102694A (ja) * 1998-09-30 2000-04-11 Sanyo Electric Co Ltd 洗濯機
EP3085825A1 (fr) 2015-04-21 2016-10-26 Miele & Cie. KG Procede de fonctionnement d'un lave-linge et lave-linge
DE102016225146B3 (de) * 2016-12-15 2018-05-03 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102017219042A1 (de) * 2017-10-25 2019-04-25 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

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