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WO2019081225A1 - Appareil d'entretien du linge équipé d'une commande - Google Patents

Appareil d'entretien du linge équipé d'une commande

Info

Publication number
WO2019081225A1
WO2019081225A1 PCT/EP2018/077831 EP2018077831W WO2019081225A1 WO 2019081225 A1 WO2019081225 A1 WO 2019081225A1 EP 2018077831 W EP2018077831 W EP 2018077831W WO 2019081225 A1 WO2019081225 A1 WO 2019081225A1
Authority
WO
WIPO (PCT)
Prior art keywords
laundry
temperature value
washing liquid
controller
temperature
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.)
Ceased
Application number
PCT/EP2018/077831
Other languages
German (de)
English (en)
Inventor
Tyl BECKMANN
Christine Meissner
Steffen Weissbach
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
Priority to PL18789576T priority Critical patent/PL3701073T3/pl
Priority to CN201880068985.8A priority patent/CN111263837B/zh
Priority to EP18789576.8A priority patent/EP3701073B1/fr
Publication of WO2019081225A1 publication Critical patent/WO2019081225A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/16—Washing liquid temperature
    • 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
    • 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
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • 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
    • 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
    • D06F39/083—Liquid discharge or recirculation arrangements

Definitions

  • the present invention relates to a laundry care device with a controller.
  • washing liquid is heated in a tub of the laundry care device by a heating element so that the heated washing liquid of the laundry in the laundry drum is available for a washing process in order to achieve an effective laundry care success.
  • the heating element Since the laundry in the laundry drum generally has a lower temperature than the heated washing liquid in the lye container of the laundry care appliance, the heating element must often heat the washing liquid to a temperature which is above a desired laundry core temperature of the laundry to ensure that the Laundry is heated sufficiently. In the case of particularly delicate textiles, under certain circumstances damage to the laundry may occur.
  • EP 2 161 365 B1 discloses a method for operating a washing machine, the method comprising a washing phase with the heating body switched on to heat the washing liquid and activated flooding device, which moves the washing liquid from the lower region of the tub into the upper area, relative to the washing area operating installation position of the washing machine promotes.
  • the object according to the invention is achieved by a laundry care appliance having a lye container for receiving washing liquid, wherein the lye container has a discharge opening and an inlet opening, which are fluidly connected by a liquid line, a laundry drum for receiving laundry, a drum drive for rotating the laundry drum, a temperature sensor for detecting a temperature of washing liquid in the tub, a heating element for heating the washing liquid, a pump which is adapted to pump washing liquid through the discharge opening into the liquid line and the pumped washing liquid through the Re-introducing the inlet port to the tub to wet the laundry in the laundry drum, and a controller for controlling the pump, the drum drive and the heating element during a washing operation, wherein the controller is configured to activate the heating element during a heating phase of the washing process until the detected temperature of the washing liquid in the tub reaches a target temperature value, wherein the controller is designed
  • the laundry in the heating phase, the laundry is heated to the target temperature and the heating element is subsequently deactivated by the controller.
  • washing liquid is pumped out of the tub by the pump and supplied again to the tub during a pumping operation.
  • the aim of uniform heating of the laundry is to obtain the smallest possible temperature difference between the temperature of the laundry and the temperature of the washing liquid at the end of the mixing phase.
  • the controller determines a first temperature value at the beginning of the reference time section and a second temperature value at the end of the reference time section.
  • the controller determines a temperature difference between the first temperature value and the second temperature value, and the controller then compares the temperature difference to a temperature threshold. As soon as the temperature difference is less than the temperature threshold value, the controller terminates the mixing phase as an effective temperature balance between the laundry and the washing liquid has been established.
  • the temperature threshold is chosen to be low enough to ensure that an effective temperature balance has been established between the laundry and the washing liquid in the laundry care appliance.
  • a laundry care device is understood to mean a device which is used for laundry care, such as a washing machine or a tumble dryer.
  • a laundry care appliance is understood as a household laundry care appliance. So a laundry care device, which is used in the context of household management, and is treated with the laundry in normal household quantities.
  • the controller is configured to end the washing process when the determined second temperature value of the washing liquid at the end of the mixing phase corresponds to the target temperature value, or is the controller configured to end the washing process when the determined second temperature value of the washing liquid on End of the mixing phase is within a variance range of the target temperature value, or the controller is adapted to terminate the washing process, when the determined temperature difference between the first temperature value and the second temperature value falls below a further temperature threshold.
  • the technical advantage is achieved that a uniform heating of the laundry is ensured in the laundry drum. If, at the end of the mixing phase, the second temperature value of the washing liquid corresponds to the target temperature value, the controller can assume that the laundry in the washing drum and the washing liquid in the tub are at approximately the same temperature, since the temperature of the washing liquid does not drop any further. Thus, the controller can stop the washing process. Alternatively, the controller may terminate the washing process if the determined second temperature value of the washing liquid at the end of the mixing phase is within a variance range of the target temperature value. This ensures that the controller also terminates the washing process when the specific second temperature value is only slightly above or only slightly below the target temperature value.
  • the controller may end the washing process if the determined temperature difference between the first temperature value and the second temperature value falls below a further temperature threshold value.
  • the washing process can also be terminated if at the end of the mixing phase only a very fla- tended temperature gradient is determined and there is no further significant temperature drop.
  • the further temperature threshold value may have a lower differential temperature, in particular of 2 ° C., than the temperature threshold value, which may in particular have a differential temperature of 5 ° C.
  • the washing process means the phase of a laundry treatment program until the temperature value of the laundry has reached a predetermined target value, wherein the temperature value of the laundry can be determined by measuring the temperature value of the washing liquid due to the effective temperature compensation between the laundry and the washing liquid.
  • a subsequent washing process can in principle follow, which preferably takes place without a further heating phase.
  • a treatment of the laundry with the predetermined temperature value of the laundry for a predetermined treatment time can be ensured.
  • the laundry can be further moved during the Nachwaschvorgangs by rotating the laundry drum.
  • the treatment duration of the post-washing process may preferably be determined or determined as a function of the duration of the preceding washing process, a determined quantity of laundry and / or type of laundry and / or a selected laundry treatment program.
  • the controller is designed to deactivate the pump and the drum drive during a collection phase of the washing process subsequent to the mixing phase in order to collect washing liquid in the tub when the determined second temperature value of the washing liquid at the end of the mixing phase does not correspond to the target temperature value or if the determined second temperature value of the washing liquid is not within a variance range of the target temperature value at the end of the mixing phase or if the determined temperature difference between the first temperature value and the second temperature value does not fall below the further temperature threshold value.
  • the collection phase ensures that collects by disabling the pump and the drum drive, the washing liquid to a bottom of the tub. If the determined second temperature value of the washing liquid at the end of the mixing phase does not correspond to the target temperature value, or if the determined second temperature value of the washing liquid at the end of the mixing phase is not within a variance range of the target temperature value, or if the determined temperature difference between the first temperature temperature value and the second temperature value does not fall below the further temperature threshold, the controller can not end the washing process, since the laundry has not yet been fully heated by the washing liquid. Instead, the controller must activate another heating phase of the heating element as part of another washing process. By the collected during the collection phase in the tub washing liquid can be ensured that the heating element does not run dry in the subsequent further heating phase of the further washing process.
  • control is formed, after the mixing phase or after the collection phase another
  • Control is configured to activate the heating element during a further heating phase of the further washing process until the detected temperature of the washing liquid in the tub reaches a target temperature value, wherein the controller is formed, during a subsequent subsequent mixing phase further mixing phase of the further washing process the drum drive to rotate the laundry drum and activate the pump to pump over the washing liquid and the laundry received in the laundry drum
  • the controller is designed to determine a first temperature value at the beginning of a reference time interval of the further mixing phase and a second temperature value at the end of the reference time interval of the further mixing phase, and wherein the controller is configured, the others End mixing phase when the temperature difference between the first temperature value and the second temperature value is below a temperature threshold to ensure a uniform temperature distribution in the washing liquid and in the laundry.
  • the controller ensures that the washing process is not ended if the specific second temperature value of the washing liquid does not correspond to the target temperature value at the end of the mixing phase. speaks, or if the temperature gradient is not shallow enough, because then the laundry has not been completely heated by the washing liquid. In this case, the controller starts another washing process.
  • the heating element heats the washing liquid again to the target temperature value.
  • the controller again activates the drum drive to rotate the laundry drum and re-activates the control to pump the washing liquid out of the tub and pump the heated pumped washing liquid back into the tub.
  • the first and second temperature values and the temperature difference between the first and second temperature values are again determined. If the determined second temperature value of the washing liquid at the end of the further mixing phase corresponds to the target temperature value, or if the temperature gradient is sufficiently flat, the control ends the further washing process. If this is not the case, the controller repeats the further laundry operations until the determined second temperature value of the washing liquid at the end of the corresponding further mixing phase corresponds to the target temperature value or until the temperature gradient runs sufficiently flat.
  • the laundry care appliance has a fill level sensor which is designed to detect a fill level of wash liquid in the wash tub, and the laundry care appliance has a wash liquid feed device for feeding washing liquid into the wash tub, wherein the controller is designed, to activate the washing liquid supply means to supply washing liquid in the tub when the detected level of washing liquid in the tub is below a reference level.
  • the washing liquid supply device is fluidically connected to the tub by a supply line connected, and the Waschsometimeskeitszu211 nerve comprises in particular a Ein Cyprusschale the laundry care device.
  • the washing liquid supply device can effectively deliver washing liquid to the tub through the supply line. If the washing liquid supply device comprises an induction bowl, then either water can be supplied to the liquor container as the washing liquid through the dispensing bowl, or it can be supplied to the liquor container as laundry liquid mixed with water.
  • the laundry care appliance has a fill level sensor which is designed to detect a level of washing liquid in the tub, wherein the controller is designed to activate the drum drive in order to spin the washing liquid bound in the laundry and to spin it free To supply washing liquid to the tub when the detected level of washing liquid in the tub is below a reference level.
  • the spin-off washing liquid ensures that a dry running of the heating element can be prevented when the detected level of washing liquid in the tub is below a reference level.
  • the control is designed to activate the drum drive during the mixing phase in order to rotate the laundry drum at least in sections at an investment rotational speed during the mixing phase and bring the laundry into contact with the laundry drum.
  • the control is designed to activate the drum drive during the mixing phase in order to rotate the laundry drum at least in sections at a reversing rotation speed, in particular in a reversing rotation direction oppositely directed to the main rotation direction of the laundry drum during the mixing phase.
  • the controller is designed to rotate the laundry drum during the reference time period with the reversing rotation speed and / or in the reversing rotation direction.
  • the technical advantage is achieved that during the reference period, a uniform distribution of the laundry in the laundry drum is ensured, whereby a particularly accurate determination of the first temperature value and the second temperature value can be ensured.
  • the laundry care appliance has a fill level sensor which is designed to detect a level of wash liquid in the tub, and the controller is configured to activate the heating element during the heating phase when the detected level of wash liquid in the tub exceeds a reference level.
  • the object according to the invention is achieved by a method for maintaining laundry in a laundry care device, wherein the laundry care device has a lye container for receiving washing liquid, wherein the lye container has a drain opening and an inlet opening, which are fluidly connected by a liquid line
  • the laundry-care apparatus comprises a laundry drum for receiving laundry, a drum drive for rotating the laundry drum, a temperature sensor for detecting a temperature of washing liquid in the tub, a heating element for heating the washing liquid, a pump which is adapted to pump washing liquid through the discharge opening into the liquid line and re-supplying the pumped washing liquid through the inlet port to the tub to wet the laundry in the laundry drum, and a controller for controlling the pump, the drum drive and the heating element during a washing operation, the method comprising the steps of activating the heating element during a heating phase of the washing operation by the controller until the detected temperature of the washing liquid in the tub reaches a target temperature value, activating the drum drive to the laundry drum to during a phase
  • the method comprises the step of terminating the washing operation by the controller when the determined second temperature value of the washing liquid at the end of the mixing phase corresponds to the target temperature value or if the determined second temperature value of the washing liquid is within a variance range at the end of the mixing phase of the target temperature value, or if the determined temperature difference between the first temperature value and the second temperature value falls below a further temperature threshold value.
  • the technical advantage is achieved that after reaching the target temperature, or at a shallow temperature gradient, the washing process can be stopped.
  • the method comprises the following step of deactivating the pump and the drum drive during a collection phase of the washing operation by the controller subsequent to the mixing phase to collect washing liquid in the tub when the determined second temperature value of the washing liquid at the end of the mixing phase does not correspond to the target temperature value, or when the determined second temperature value of the washing liquid at the end of the mixing phase is not within a variance range of the target temperature value, or if the determined temperature difference between the first temperature value and the second temperature value does not fall below a further temperature threshold value.
  • the method comprises the following step, starting a further washing operation of the laundry care device after the mixing phase or after the collection phase by the controller, if the determined second temperature value of the washing liquid at the end of the mixing phase does not correspond to the target temperature value or not within is a variance range of the target temperature value or if the determined temperature difference between the the first temperature value and the second temperature value does not fall below a further temperature threshold value, the further washing process comprising a further heating phase and a further mixing phase subsequent to the further heating phase.
  • FIG. 1 shows a schematic view of a laundry care appliance
  • Fig. 2 is a schematic view of a laundry care device with a controller
  • FIG. 3 is a graphical representation of a portion of a laundry treatment program according to a first embodiment
  • FIG. 4 is a diagram of a portion of a laundry treatment program according to a second embodiment
  • FIG. 5 is a diagram of a portion of a laundry treatment program according to a third embodiment
  • Fig. 6 is a schematic representation of a method for maintaining laundry in a laundry care device.
  • Fig. 1 shows a schematic view of a general laundry care device 100, such as a washing machine.
  • the laundry care device 100 comprises an induction bowl 101, into which detergent or other liquid substances can be introduced.
  • the heat Grooming device 100 includes a door 103 for loading the laundry care device 100 with laundry.
  • Fig. 2 shows a schematic view of a laundry care device with a controller.
  • the laundry care apparatus 100 has a tub 105 for receiving washing liquid, and has a laundry drum 107 for receiving laundry.
  • the laundry drum 107 has a drum base 109.
  • the tub 105 has a drain opening 1 1 1.
  • the laundry care device 100 has an inlet opening 13.
  • the discharge opening 1 1 1 is fluidly connected by a liquid line 1 15 with the inlet opening 1 13, wherein in the liquid line 1 15 a pump 1 17 for pumping washing liquid through the liquid line 1 15 is arranged.
  • the pump 1 17 can pump washing liquid through the discharge port 1 1 1 from the tub 105 during a pumping process, not shown in Fig.
  • the laundry care device 100 further comprises a controller 1 19, which is connected to the pump 1 17 by a first control connection 121, and which is connected to a drum drive 123 by a second control connection 125.
  • the controller 1 19 is designed to control the pump speed of the pump 1 17 as a function of the detected electrical power value of the pump 1 17.
  • the laundry care device 100 further comprises an outlet line 127 which is fluidly connected to the fluid line 15.
  • the pump 1 17 is formed during a pumping operation, not shown in Fig. 2, washing liquid through the outlet 1 1 1 from the tub 105, through the liquid line 1 15 and through the outlet line 127 pumped out of the laundry care device 100.
  • the controller 19 is provided with a temperature sensor for detecting a temperature of washing liquid in the tub 105, a heating element for heating the washing liquid in the tub 105, and a level sensor for detecting a level of washing liquid in the tub 105 connected.
  • 3 shows a graphical representation of a portion of a laundry treatment program according to a first embodiment.
  • FIG. 3 shows a time chart of a rotational speed of a laundry drum 107, a temperature of washing liquid in the tub 105, the level of washing liquid in the tub 105, an activation state or deactivation state of the pump 1 17, and the liquor tank 105 supplied washing liquid amount, all along the ordinate axis 131 as a function of the time in seconds, which is indicated along the abscissa axis 133, are plotted.
  • the first curve 135 shows the course of the rotational speed of the washing drum 107.
  • the second curve 137 shows the course of the temperature of washing liquid in the tub 105.
  • the third curve 139 shows the level of washing liquid in the tub 105.
  • the fourth curve 141 shows the activation state or deactivation state of the pump 1 17.
  • the fifth curve 143 shows the washing liquid supplied to the tub 105.
  • a heating phase 145 of the washing process 144 is in the lye container 105 a sufficient amount of washing liquid, thereby ensuring that the arranged in the tub 105 heating element is completely surrounded by washing liquid and thus there is no damage caused by dry running of the heating element .
  • the controller 1 19 activates the heating element during the heating phase 145 until the temperature of the washing liquid in the tub 105 reaches a target temperature value 146.
  • the target temperature value 146 is selected by the customer or by the laundry treatment program such that upon reaching the target temperature Values 146 there is no fear of temperature-induced textile damage due to locally overheated laundry.
  • the drum drive 123 rotates the laundry drum 107 during the heating phase 145.
  • the controller 1 19 activates the drum drive 123 to rotate the laundry drum 107 at an abutment rotational speed 148, whereby the laundry is brought into abutment with the laundry drum 107.
  • the controller 1 19 activates the pump 1 17 during the mixing phase 147 to circulate washing liquid and supply the pumped washing liquid to the laundry in the laundry drum 107.
  • the pumped liquid circulated through the pump 17 in this case has a pumping activity 149.
  • the washing liquid heated by the heating element is supplied to the laundry in the laundry drum 107, and the supplied washing liquid is again thrown out of the laundry by the abutment rotational speed 148.
  • the washing liquid ejected during the mixing phase 147 collects in the tub 105, so that a drum level 151 of washing liquid in the tub 105 adjusts.
  • the drum drive 123 need not necessarily rotate the laundry drum 107 at the abutment rotational speed 148, but may also rotate the laundry drum 107 at a slower rotational speed.
  • the drum drive 123 prefferably rotates the laundry drum 107 at least in sections during the mixing phase 147, whereby the reversing rotation direction is opposite to a main direction of rotation of the laundry drum 107 during the mixing phase 147, and the laundry drum 107 is rotated in particular with a reversing rotation speed.
  • the heated washing liquid transfers a portion of its heat to the laundry, so that there is an effective temperature compensation between the washing liquid and laundry.
  • the scrubbing liquid in the scrubber 105 is slightly cooled so that, as shown in the first curve 135, the temperature of the scrubbing liquid slightly drops during the mixing phase 147, and thus below the Target temperature value 146 is located.
  • the controller 1 19 determines a first temperature value at the beginning of a reference time section 153 and the controller 1 19 determines a second temperature value at the end of the reference time section 153.
  • the controller 1 19 determines the temperature difference between the first temperature value and the second temperature value .
  • the controller 1 19 terminates the mixing phase 147 when the temperature difference between the first temperature value and the second temperature value falls below a temperature threshold value.
  • the temperature threshold is chosen to be so low that it is ensured that a temperature difference which is below the temperature threshold indicates that an effective heat exchange between the laundry and the washing liquid has taken place and thus a sufficiently flat temperature gradient exists.
  • the controller 1 19 since the second temperature value at the end of the mixing phase 147 does not correspond to the target temperature value 146 but is lower, the controller 1 19 starts a collection phase 155 adjoining the mixing phase 147. During the collection phase 155, the controller 1 19 deactivates the pump 1 17 and the drum drive 123 to collect the pumped washing liquid in the tub 105. This ensures that a sufficiently high level of washing liquid is present at the bottom of the tub 105, so that heating element and temperature sensor are effectively covered with the washing liquid as soon as the washing liquid is reheated.
  • the controller 1 19 again activate the drum drive 123 to wash liquid from the Free to spin laundry, or it may be a Waschstattkeitszu slaughter activated to again supply washing liquid to the tub 105.
  • the laundry care device has a fill level sensor, not shown in FIG. 3, which is designed to detect a fill level of wash liquid in the wash tank 105, and the laundry care appliance has a wash liquid feed device for feeding washing liquid into the wash tub 105.
  • the controller 1 19 activates the washing liquid supply means at a feed time 157 when the detected level of washing liquid in the tub 105 falls below a reference level 159, so that washing liquid can be supplied until it detects Level of washing liquid in the tub 105 again exceeds the reference level 159.
  • the laundry care device 100 starts a further washing process 144-2, wherein the further washing process 144-2 comprises a further heating phase 145-2, during which the control 1 19 again activates the heating element, whereby during the further heating phase 145 -2 the detected temperature of the washing liquid corresponds to the target temperature value 146.
  • the controller 1 19 is configured to end the washing process 144 when the detected temperature of the washing liquid in the tub 105 reaches the target temperature value 146 after the further washing process 144-2.
  • FIG. 4 shows a graphical representation of a section of a laundry treatment program according to a second embodiment.
  • the controller 1 19 activates the washing liquid supply means at a supply time 157 when the detected level of washing liquid in the tub 105 falls below a reference level 159.
  • the heating phase 145 and the mixing phase 147 of the washing process 144 correspond to the respective corresponding phases 145, 147 of the washing process 144 shown in FIG. 3. In this case, however, the temperature of the washing liquid detected by the temperature sensor falls below the target temperature value 146 at the end of the mixing process. For this reason, the controller 1 19 performs a collection phase 155 to collect washing liquid in the tub 105, and then carries out the control 1 19 further washing operations 144-2, wherein the further washing operations 144-2 further heating phases 145-2 2 and further mixing phases 147-2. At the end of the last mixing phase 147-2 of the last one
  • washing 144-2 the detected temperature is within a variance range of the target temperature value 146, and the controller 1 19 terminates the washing operations 144, 144-2.
  • FIG. 5 shows a graphical representation of a laundry care process according to a second embodiment.
  • curves 135, 137, 139, 141 and 143 reference is made to FIG.
  • FIG. 5 shows a plurality of further washing processes 144-2 only in sections.
  • each of the further washing processes 144-2 comprises a corresponding further heating phase 145-2 and a corresponding further mixing phase 147-2.
  • washing liquid is collected in the tub 105 during respective collection phases 155.
  • the controller 1 19 activates the washing liquid supply means at a supply time 157 when the detected level of washing liquid in the tub 105 falls below a reference level 159.
  • the controller 1 19 determines a first temperature value at the beginning of the respective reference period 153 and a second temperature value at the end of the respective reference period 153.
  • the controller 1 19 compares the temperature difference between the first temperature value and the second temperature value and determines the respective temperature difference between the respective first temperature value and the respective second temperature value.
  • the criterion for the control 1 19 to abort the respective further washing process 144-2 is when the respective determined temperature difference falls below a temperature threshold value.
  • the temperature difference determined by the control unit 19 is too great for the control unit 1 19 to be able to terminate, ie the temperature gradient is sufficiently flat. Only in the time last reference period 153, a small temperature difference is determined, which falls below the temperature threshold, so that the temperature gradient is sufficiently flat for a termination.
  • Fig. 6 shows a schematic representation of a method for maintaining laundry in a laundry care device.
  • the method 200 includes, as a first method step, the activation 201 of the heating element during a heating phase 145 of the washing process 144 by the controller 11 until the detected temperature of the washing liquid in the tub 105 reaches a target temperature value 146.
  • the method 200 comprises, as a second method step, the activation 203 of the drum drive 123 to rotate the laundry drum 107, and the pump 17 to circulate the washing liquid during a mixing phase 147 subsequent to the heating phase 145 by the controller 19 to prevent the wash drum 107 from rotating To wet in the laundry drum 107 recorded laundry with the heated pumped wash liquid.
  • the method 200 includes as a third method step the determination 205 of a first temperature value at the beginning of a reference time section 153 of the mixing phase 147 and a second temperature value at the end of a reference time section 153 of the mixing phase 147.
  • the method 200 includes, as a fourth method step, the termination 207 of the mixing phase 147 by the controller 1 19 when the temperature difference between the first temperature value and the second temperature value falls below a temperature threshold to ensure a uniform temperature distribution in the washing liquid and in the laundry.
  • the method 200 includes, as an optional fifth method step, the termination 209 of the wash 144 by the controller 19 when the determined second temperature value of the wash liquid at the end of the mixing phase 147 corresponds to the target temperature value 146, or if the determined second temperature value of the wash liquid at the end of the wash cycle Blend phase 147 is within a variance range of the target temperature value 146, or if the determined temperature difference between the first temperature value and the second temperature value is below a further temperature threshold.
  • the method 200 includes, as an alternative optional sixth method step, deactivating 21 1 of the pump 1 17 and the drum drive 123 during a collection phase 155 of the washing operation 144 by the controller 1 19 subsequent to the mixing phase 147 in order to collect washing liquid in the tub 105 the determined second temperature value of the washing liquid at the end of the mixing phase 147 does not correspond to the target temperature value 146, or if the determined second temperature value of the washing liquid at the end of the mixing phase 147 is not within a variance range of the target temperature value 146, or if the determined temperature difference between the first temperature value and the second temperature value does not fall below another temperature threshold.
  • the method 200 includes, as an alternative optional seventh method step, starting 213 another washing 144-2 of the laundry machine 100 after the mixing phase 147 or after the collection phase 155 if the determined second temperature value of the washing liquid at the end of the mixing phase 147 does not correspond to the target temperature value 146 is within a variance range of the target temperature value 146 or if the determined temperature difference between the first temperature value and the second temperature value does not fall below a further temperature threshold, the further washing process 144-2 being another Heating phase 145-2 and subsequent to the further heating phase 145-2 further mixing phase 147 includes.
  • the method step 213 may also be formed by repeating the steps 201 to 207 in an alternative, not illustrated embodiment, wherein the repetition may be terminated upon reaching a predetermined period of time or with the step 209.
  • a subsequent washing process may follow, in which the laundry drum 109 can be rotated analogously to the rotation of the laundry drum 109 in the washing process 144 or 144-02. In the post-wash cycle in particular no further heating phase is provided more.
  • Second process step Activate the drum drive and the pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

La présente invention concerne un appareil d'entretien du linge (100) comprenant une cuve (105) destinée à contenir un liquide de lavage, la cuve (105) présentant un orifice de sortie (111) et un orifice d'entrée (113) qui sont mis en liaison fluidique l'un avec l'autre par une conduite de liquide (115), un tambour (107) destiné à accueillir le linge, un entraînement (123) destiné à mettre en rotation le tambour (107), un capteur de température servant à détecter la température du liquide de lavage dans la cuve (105), un élément chauffant servant à chauffer le liquide de lavage, une pompe (117) conçue pour pomper du liquide de lavage par l'orifice de sortie (111) dans la conduite de liquide (115) et pour réacheminer dans la cuve (105) par l'orifice d'entrée (113) le liquide de lavage pompé afin de mouiller le linge dans le tambour (107), ainsi qu'une commande (119) destinée à commander la pompe (117), l'entraînement (123) du tambour et l'élément chauffant pendant un processus de lavage (144). La commande (119) est conçue pour activer l'élément chauffant pendant une phase de chauffage (145) du processus de lavage (144) jusqu'à ce que la température du liquide de lavage détectée dans la cuve (105) atteigne une valeur de température cible (146). La commande (119) est conçue pour activer l'entraînement (123) du tambour pendant une phase de mélange (147) du processus de lavage (144) consécutive à la phase de chauffage (145) afin de mettre en rotation le tambour (107) et d'activer la pompe (117) pour transvaser le liquide de lavage et mouiller le linge situé dans le tambour (107) avec le liquide de lavage chauffé et transvasé. La commande (119) est conçue pour déterminer une première valeur de température au début d'une période de référence (153) de la phase de mélange (147) et pour déterminer une deuxième valeur de température à la fin de la période de référence (153) de la phase de mélange (147), la commande (119) étant conçue pour mettre fin à la phase de mélange (147) lorsque la différence de température entre la première valeur de température et la deuxième valeur de température est inférieure à une valeur seuil de température afin d'assurer une répartition uniforme de la température dans le liquide de lavage et dans le linge.
PCT/EP2018/077831 2017-10-25 2018-10-12 Appareil d'entretien du linge équipé d'une commande Ceased WO2019081225A1 (fr)

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PL18789576T PL3701073T3 (pl) 2017-10-25 2018-10-12 Urządzenie do pielęgnacji prania z układem sterowania
CN201880068985.8A CN111263837B (zh) 2017-10-25 2018-10-12 具有控制装置的洗涤物护理器具
EP18789576.8A EP3701073B1 (fr) 2017-10-25 2018-10-12 Appareil d'entretien du linge équipé d'une commande

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DE102017219042.6A DE102017219042A1 (de) 2017-10-25 2017-10-25 Wäschepflegegerät mit einer Steuerung
DE102017219042.6 2017-10-25

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DE102019213015A1 (de) * 2019-08-29 2021-03-04 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
CN112522904B (zh) * 2020-11-18 2025-07-22 重庆海尔洗衣机有限公司 滚筒洗衣机的洗涤水加热方法
DE102022203316A1 (de) * 2022-04-04 2023-10-05 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung und Verfahren zum Betrieb des Wäschepflegegeräts
DE102022203626A1 (de) 2022-04-11 2023-10-12 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung und ein Verfahren zum Pflegen von Wäsche
DE102023203443A1 (de) * 2023-04-17 2024-10-17 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

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EP2161365A2 (fr) * 2008-09-09 2010-03-10 MIELE & CIE. KG Procédé de fonctionnement d'un lave-linge et lave-linge
EP2348151A1 (fr) * 2010-01-25 2011-07-27 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge, dispositif d'écoulement et lave-linge
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EP2161365B1 (fr) 2008-09-09 2015-08-12 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge et lave-linge
EP2348151A1 (fr) * 2010-01-25 2011-07-27 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge, dispositif d'écoulement et lave-linge
EP2930261A1 (fr) * 2014-04-09 2015-10-14 Miele & Cie. KG Procédé de fonctionnement d'un lave-linge et lave-linge

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EP3701073A1 (fr) 2020-09-02
CN111263837B (zh) 2022-07-05
EP3701073B1 (fr) 2021-12-08
CN111263837A (zh) 2020-06-09
PL3701073T3 (pl) 2022-03-28
DE102017219042A1 (de) 2019-04-25

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