EP3757273B1 - Dispositif de traitement du linge comprenant une pompe et le procédé pour son fonctionnement - Google Patents

Dispositif de traitement du linge comprenant une pompe et le procédé pour son fonctionnement Download PDF

Info

Publication number
EP3757273B1
EP3757273B1 EP20179038.3A EP20179038A EP3757273B1 EP 3757273 B1 EP3757273 B1 EP 3757273B1 EP 20179038 A EP20179038 A EP 20179038A EP 3757273 B1 EP3757273 B1 EP 3757273B1
Authority
EP
European Patent Office
Prior art keywords
pump
washing liquid
laundry care
controller
time segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20179038.3A
Other languages
German (de)
English (en)
Other versions
EP3757273A1 (fr
Inventor
Kevin Hahn
Raymond Römer
Stefan Wetzel
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 EP3757273A1 publication Critical patent/EP3757273A1/fr
Application granted granted Critical
Publication of EP3757273B1 publication Critical patent/EP3757273B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • D06F39/086—Arrangements for avoiding detergent wastage in the discharge conduit
    • 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 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • 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
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/48—Current or voltage of the motor driving the pump
    • 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
    • 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 
    • D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs
    • 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 appliance with a pump device and an operating method of such a laundry care appliance.
  • laundry care substances such as different detergents or fabric softeners
  • Water is supplied to the dispensing bowl through the water connection of the laundry care appliance, with the laundry care substance being washed out of the dispensing bowl by the water supplied and fed to the tub.
  • the laundry care substance which is usually present as a powder, should then go into solution in the tub with the flushed amount of water.
  • This dissolving process takes place predominantly in the form of diffusion and therefore requires a certain period of time. This period of time can be shortened by setting the flushed-in water in motion, for example by rotating the drum in the tub, so that the dissolving process also takes place by convection.
  • this laundry care substance dissolving process can be prolonged, or the powdered laundry care substances are not completely dissolved.
  • undissolved laundry care substance in the tub can damage the laundry to be cared for and cause discoloration of the laundry, particularly if detergent residues come into contact with the laundry.
  • the patent specification DE 10 2016 201 446 B3 discloses a laundry care appliance with a pump control.
  • a washing machine in which an excessive consumption of laundry care substance is to be avoided.
  • the washing machine is set up to operate a pump briefly and at intervals during the washing process turn on to promote washing liquid with the laundry care substance in a pump-out hose, the washing liquid in the pump-out hose alternately rises and falls, whereby the laundry care substance is intended to dissolve.
  • the washing liquid is pumped out of the tub by means of a second pump, in particular a pump-around pump, and is fed back to the laundry through the pump-around line and through the inlet element.
  • a tub sump closure is generally dispensed with because there is no risk of detergent wastage, in which the detergent concentration in the washing liquid decreases, due to the presence of the pump-over system.
  • Undissolved, usually still powdery detergent which has already left the tub through the opening of the tub due to the force of gravity, without having taken part in the washing process, can be immediately returned to the tub and thus to the laundry by activating the circulation pump, with the detergent in particular being largely removed should already be in dissolved form in order to rule out discoloration damage to the laundry.
  • the used washing liquid is pumped out of the laundry care appliance through the pump-out line by means of the first pump, in particular a pump.
  • WO 2017/039549 A1 discloses a method for dissolving a detergent in a washing machine with a pump-around system.
  • a pump is switched on and off briefly and at intervals during the washing process in order to convey washing liquid with the detergent into a pump-over hose, the pump being stopped before the washing liquid has reached the highest point in the pump-over hose.
  • the object of the invention is achieved by a laundry care appliance, with a tub for holding washing liquid, the tub having a drain opening and an inlet element, in particular an inlet nozzle, a pumping device for pumping the washing liquid, a drain line which fluidically communicates with the drain opening connects the pump device, a pump-out line which fluidly connects the pump device to an exterior area of the laundry care appliance, a pump-around line which fluidly connects the pump device to the inlet element, the pump device having a first pump which is designed to pump washing liquid, in particular with a nominal pump capacity, pump out of the tub through the drain opening, through the drain line and through the drain line out of the laundry care appliance, with the pump device having a second pump which is designed to pump washing liquid, in particular with a nominal pump capacity, out of the tub through the drain opening and through the drain line to pump the pumping line and to supply the washing liquid from the pumping line and through the inlet element again to the tub, and a control for controlling the pumping device,
  • the controller is preferably designed in particular to activate the delivery mode of the first pump with the reduced pump capacity in the first period of time in order to pump or lift washing liquid up to the liquid level in the pump-out line, and the controller is designed in particular to to activate the delivery mode of the second pump with the reduced pumping capacity following the first time period in order to pump the washing liquid out of the pump-out line and to pump or lift the pumped washing liquid up to a liquid level in the pump-around line.
  • the first pump is switched off in particular when the second pump is activated.
  • the controller is designed in particular to activate delivery operation of the second pump with the reduced pump capacity in the first period of time in order to pump washing liquid up to the liquid level in the pump-around line, and the controller is designed in particular to do so in the period following the first period of time second period of time to activate the delivery mode of the first pump with the reduced pump capacity in order to pump the washing liquid out of the pump-around line and pump the washing liquid up to a liquid level in the to pump the pump-out line without a flow rate being established when the liquid level is reached.
  • the second pump is switched off in particular when the first pump is activated.
  • the technical advantage is achieved that the pumping or raising of the washing liquid by the respective pump in the first time period and the subsequent, particularly active, Returning the pumped washing liquid through the other pump effectively dissolves undissolved residues of laundry care substance in the washing liquid.
  • the advantageous dissolution of the laundry care substance is ensured by strong convection of the washing liquid and the laundry care substance, which occurs when the washing liquid actively flows through the pump device, the strong convection being caused in particular by the high flow speeds of the washing liquid at the respective pump impeller of the respective pump.
  • the solution process of the laundry care substance in the washing liquid is improved many times over by the convection and is therefore faster than in the convection-type solution processes known in the prior art or than if the solution process were to take place in a diffusion-type manner.
  • the laundry care substance is pre-dosed in the dispensing bowl by the user. Water is flushed into the flushing tray through the water connection of the laundry care appliance, and the mixture of laundry care substance and water is flushed through a filling line into the tub as washing liquid.
  • the detergent that is still in powder form usually settles on the floor and, due to diffusion, dissolves very slowly with the washing liquid. The process of dissolving the powdered laundry care substance is often improved somewhat by convection-like rotation of the washing drum.
  • the laundry care substance present in the washing liquid cannot be completely dissolved, in particular due to improper overdosing by the user, so that undissolved residues of the laundry care substance, eg powder Detergents that can remain in the washing liquid. Undissolved residues of laundry care substance in high concentrations on the laundry to be cared for can cause discoloration damage and should therefore be avoided.
  • the respective pump pumps the washing liquid into the pump-out line or into the pump-around line in the first period of time until the pumped washing liquid reaches a liquid level in the respective line, so that the delivery flow comes to a standstill and only a liquid column on the pressure side is built up.
  • the delivery interruption or delivery reduction carried out after the first period of time, or the sole build-up of the liquid column on the pressure side prevents the pumped washing liquid during the first period of time from being either supplied to the laundry from the circulation line through the inlet element or from being pumped out of the laundry care appliance through the pump-out line .
  • the first or second pump of the pumping system is operated at a reduced impeller speed, so that a liquid column on the pressure side is raised, but no continuous flow is built up.
  • the other of the pumps is activated in the second period, with the washing liquid being pumped out of the respective pump-out line or pump-around line and the pumped washing liquid being pumped up to a liquid level in the other of the pump-out line or the pump-around line.
  • a reduced impeller speed can be used for the pump drives, so that a flow rate builds up for a short time, which occurs as soon as the water column has reached the desired liquid level in the other pressure line on the pressure side.
  • the pumps convey the washing liquid back and forth between the pressure-side pump-out line (a first dewatering component) and the pressure-side recirculation line (another dewatering component), which leads to an advantageous dissolution of laundry care substance in the Washing liquid due to the corresponding convection, realized by the flow speed in the pressure-side drainage system components, comes, whereby in a subsequent pumping process the washing liquid can be fed to the laundry in the laundry drum without damage or discoloration of the laundry due to undissolved residues of laundry care substance can occur.
  • a first dewatering component a first dewatering component
  • the pressure-side recirculation line another dewatering component
  • This method is characterized in particular by the fact that after the first pump has been switched off, another pump is activated in order to pump the washing liquid flowing back from one of the pressure-side drainage systems into the other pressure-side drainage component in a controlled manner due to the switching off of the first pump.
  • this has the advantage that an uncontrolled backflow of the washing liquid into the tub can be avoided.
  • the liquid level in the pump-out line is in particular below the outlet opening. If, due to the user-specific installation conditions, the pump-out line has a section which runs above, ie at a geodetically higher potential, the outlet opening, the liquid level is in particular below the section of the pump-out line running above the outlet opening. Furthermore, the pump-out line can be designed in such a way that the pump-out line is divided into a pump-side line section and an outlet-side line section, the pump-side and outlet-side line section being connected to one another at an upper region of the laundry care appliance. Such an embodiment is also referred to as a "water mountain”.
  • the washing liquid is prevented from being pumped out if it is ensured that the liquid level in the pump-side line section of the pump-out line is in particular below the upper point of the pump-out line, in particular the connection point between the pump-side and outlet-side line sections.
  • Such an embodiment has the advantage that the outlet opening can also be below the liquid level.
  • the second liquid level is located in the circulation line, in particular below the inlet element. If the pump-around line has a section which runs above, ie at a geodetically higher potential, the inlet element, the liquid level is in particular below the section of the pump-around line running above the inlet element.
  • the detergent dissolution described here can be optimized because, on the one hand, increased flow velocities occur that promote convection for detergent dissolution.
  • pumping must be longer for the increased liquid level in the pressure lines of the hydraulic circulation system and the hydraulic drainage system to adjust, so that the relation between pumping time and dwell time in the oscillation reversal points at maximum oscillation amplitude at the liquid levels reached improves.
  • the pumping time is lengthened, whereas the dwell time in the reversal points remains the same, so that the time relationship increases.
  • the respective pump can only be activated for a short time, the activation period or the operating time being less than the nominal operating time of the respective pump for pumping around or pumping out the washing liquid in the normal or nominal operating case.
  • the activation time period can be predetermined as a function of the pump capacity of the respective pump for the first or further period of time.
  • the activation period can also be determined as a function of a measured pump output, or the respective pump is deactivated in the first or second time segment when it is determined that the respective liquid level has been reached.
  • a normal operating case of the pump is understood to be that state in which the washing liquid conveyed by the pump is fed back into the tub during pumping over or the washing liquid conveyed by the pump is discharged from the laundry care appliance in pumping out.
  • the reduced pump capacity of the respective pump can be greater than the return flow of the washing liquid caused by gravity in the be a pump-out line or pump-over line.
  • the reduced pump capacity of the respective pump is less than the nominal pump capacity of the respective pump for pumping around or pumping out the washing liquid in the normal or nominal operating case.
  • the reduced pump capacity of the respective pump is sufficient for the pump pressure exerted by the respective pump on the washing liquid and the countercurrent return flow caused by gravity on the washing liquid to be in equilibrium at the respective liquid level, so that the liquid column in the corresponding pressure line is at the corresponding desired level maximum liquid level can linger briefly.
  • the controller is designed to end the first time period and to activate the other of the pumps in the second time period when the washing liquid has reached the liquid level in the pump-around line or pump-out line, and/or the controller is designed in particular to end the second time period , when the pumped-out washing liquid has reached the liquid level of the respective other of the pump-over line or pump-out line.
  • the detergent is dissolved in time until all the washing substances are completely dissolved in the liquid phase of the washing liquid.
  • the torque-forming drive current or the phase winding current of the three-phase synchronous pump drive can also be evaluated. In the high-resolution flow of the current over time, it can be seen whether the medium is in two-phase or one-phase form. If the fluid is in two phases, i.e. the powdered detergent and the washing liquid have not yet dissolved, when the mixture is being conveyed, a different torque curve occurs over time than when the fluid is present in a single phase, because the solid phase, in particular the powdery detergent, has already dissolved in the washing liquid.
  • a laundry care device is understood to mean a device that is used for laundry care, such as a washing machine or a fully automatic washer dryer.
  • a laundry care appliance is understood to mean a household laundry care appliance.
  • a laundry care device that is used as part of housekeeping and is used to treat laundry in normal household quantities.
  • Washing liquid is also understood to mean the liquid medium fed to the laundry care appliance for treating the laundry, to which a laundry care substance such as detergent, detergent components, fabric softener, starch, etc., is fed or which already contains the laundry care substance.
  • the liquid medium is preferably water or an aqueous solution. Washing liquid is understood to mean not only the liquid supplied during a washing process section, but also the liquid supplied during other sections of a laundry care process, such as a soaking section or a rinsing section.
  • the pumping device has a common suction chamber which is fluidically connected to the discharge line, in particular by a suction nozzle, the pumping device has a pumping pressure chamber which is fluidly connected to the pumping line, in particular by a pumping pressure nozzle, and the pumping device has an evacuation pressure chamber which is fluidically connected to the evacuation line, in particular by an evacuation pressure nozzle, the evacuation pressure chamber being fluidically connected to the common suction chamber by an evacuation suction pipe, the evacuation pressure chamber being fluidically connected to the common suction chamber by an evacuation suction pipe, wherein the first pump comprises the pump-down pressure chamber, and wherein the second pump comprises the pump-over pressure chamber.
  • the first pump If the first pump is activated for the first time during the respective period of time with the reduced pump output, the first pump sucks in washing liquid from the drain line, the common suction chamber, the pump-out suction pipe and also from the inactive pressure line and pumps the sucked-in washing liquid from the pump-out pressure chamber up to the liquid level into the drain line.
  • the second pump in particular the circulation pump, is then operated with the reduced pump output during the respective time period, the second pump only sucks back washing liquid from the pressure-side pump-out line and through the common suction chamber via the pump-over suction pipe and pumps the suction liquid through the pump-over suction pipe the pumping pressure chamber up to the liquid level in the pumping line.
  • the first and second pumps of the pumping device can each have a pump drive.
  • the first and second pump can be realized with only one pump drive, whereby, for example, pumping around with the first pump can be realized by rotating the pump drive in a first direction of rotation and pumping out with the second pump can be realized by rotating the pump drive in an opposite direction of rotation.
  • Such a pump device with two pumps and only one pump drive can advantageously have a common suction chamber with a suction connection and a common pressure chamber, wherein the common pressure chamber can have a pump-out pressure connection and a pump-over pressure connection, which are arranged in such a way that the washing liquid is conveyed through one or other pressure nozzle is dependent on the direction of rotation of the common pump drive.
  • the selection can be made independently of the direction of rotation by entering the Pumping and pumping-off conveying path are provided on the pressure-side shut-off devices.
  • a pumping device with a single pump drive for the first and second pump can be implemented particularly cost-effectively.
  • the first pump and the second pump are each understood as a pump that is set up for pumping out or pumping around washing liquid, it being possible for the first and second pump to be physically provided in one or two pumping devices.
  • the controller is designed to repeat the first time period and the second time period following the first time period after the end of the second time period in order to alternately pump the washing liquid between the liquid level in the pump-out line and the liquid level by pumping the pump device to pump back and forth in the pump-around line, the controller being designed in particular to periodically repeat the first and second periods of time in order to alternately pump the washing liquid back and forth between the liquid level in the pump-out line and the liquid level in the pump-around line by pumping the pump device to pump.
  • washing liquid can be conveyed back and forth between the lines several times by the pumps by repeating the first and second periods of time once or several times.
  • efficiency of the dissolution of undissolved laundry care substance can be improved because not only a diffusion process is used to dissolve the laundry care substance, but this is also superimposed with a convection process and the dissolution rate can thus be increased many times over.
  • the washing liquid does not get into the suction area of the pumping device, because the exchange of washing liquid only between the pressure side of the first pump, the pump-down pressure chamber, the pump-down suction pipe, the common suction chamber, the pump-over suction pipe, the pump-over pressure chamber and the pressure side of the second pump takes place, and thus the washing liquid no longer flows back into the suction connection of the suction chamber and also not back into the drain line.
  • the controller is designed to start the subsequent second or first time period directly after the end of the first or second time period in order to pump the washing liquid without a break from the respective pump-out line or pump-around line and the pumped-out washing liquid into the other of the pump-out line or the pump-around line, or the controller is designed to continue to turn on the pump activated during the previous time segment during a time interval between the first and second time segment and/or during a time interval between the second and first time segment operate in order to keep the washing liquid at the respective liquid level in the pump-out line or pump-over line during the time interval.
  • the controller is designed to activate the pump activated during the first and/or second period of time with a period offset in relation to the natural period of a washing liquid column oscillating at a natural frequency between the pump-out line and the pump-around line.
  • the pump-over line is relative to the zero point of the washing liquid in the respective pump-over line or pump-out line, the controller being designed to activate the pumps alternately during the first and second time period with an activation frequency which is different from the natural frequency of the oscillating washing liquid.
  • the controller is designed to increase the pump output of the respective pump directly at the beginning of the respective time segment, in particular with a high speed gradient, to the reduced pump output in order to pump the washing liquid without a time delay at the reduced pump output at the beginning of the respective time segment to promote, or the controller is designed to continuously increase the pumping power of the respective pump during a pumping period at the beginning of the respective time segment, in particular with a low speed gradient, to the reduced pumping power.
  • the pumping capacity of the pump can be increased immediately and without a time delay to the reduced pumping capacity or that the pumping capacity can be continuously increased.
  • the high speed gradient has a value of 3000 rpm/s.
  • the low speed gradient has a value of 250 rpm/s.
  • the laundry care appliance has a power detection element for detecting an electrical power characteristic of the respective pump, with the controller being designed to compare the detected electrical power characteristic with a reference power characteristic of the respective pump, with the controller being designed to record the respective time period End basis of the comparison of the detected electric power characteristic with the reference power characteristic.
  • the reference performance characteristic corresponds to the performance characteristic of the respective pump in which the respective pump wash liquid up to the respective liquid level in the Pump-out line or pump-over line is pumping.
  • the controller can recognize that the washing liquid has reached the respective liquid level, and the controller can end the respective period. It is assumed that the power requirement changes significantly if the two-phase medium is pumped out first and the medium is completely single-phase after the detergent solution process. Even if the power requirement changes only slightly during the detergent dissolving process, the presence of the first, solid phase in the liquid phase should result in a high-frequency fluctuation in the motor power.
  • the laundry care appliance has a power detection element for detecting a further electrical power characteristic of the respective pump, with the controller being designed to compare the detected further electrical power characteristic with a further reference power characteristic of the respective pump, with the controller being designed to Based on the comparison of the detected further electrical power characteristic with the further reference power characteristic during a third period of time following the second period of time, the second pump for pumping the washing liquid with a nominal pump power is activated in order to again supply washing liquid through the pump-around line and through the inlet element to the tub.
  • the power detection element comprises a current sensor for detecting a supply current and/or torque-forming current of the respective pump.
  • the laundry care appliance has a level sensor for detecting a level of washing liquid in the pump-around line, the controller being designed to end the respective period of time when the detected level of washing liquid corresponds to the liquid level in the pump-around line and/or the laundry care appliance has a further level sensor for detecting a further level of washing liquid in the pump-out line, the controller being designed to end the respective period of time when the detected level of washing liquid corresponds to the further liquid level in the pump-out line.
  • the object is achieved by a method for operating a laundry care appliance, the laundry care appliance having a tub for holding washing liquid, the tub having a drain opening and an inlet element, the laundry care appliance having a pump device for pumping the washing liquid, a Drain line, which fluidly connects the drain opening to the pumping device, a pump-out line, which fluidly connects the pumping device to an exterior area of the laundry care appliance, a pump-around line, which fluidly connects the pumping device to the inlet element, the pumping device having a first pump, which is designed to wash liquid , in particular with a nominal pump capacity, from the tub, through the drain opening, through the drain line and through the pump-out line out of the laundry care appliance, with the pump device having a second pump which is designed to pump washing liquid, in particular with a nominal pump capacity, out of the tub to pump through the discharge opening and through the discharge line into the pumping line and to supply the washing liquid from the pumping line and through the inlet element to the tub
  • the method has the further method steps of reactivating one of the pumps of the pumping device for pumping the washing liquid with a reduced pump capacity in a first time period following the second time period by the controller in order to extract the washing liquid from the respective to pump another of the pump-out line or the pump-over line and again pump the pumped washing liquid up to the liquid level in the pump-out line or up to the liquid level in the pump-over line; and reactivating the other of the pumps of the pumping device for pumping the washing liquid with a reduced pump capacity in a second time period following the first time period by the controller in order to pump the pumped-out washing liquid up to the liquid level in the respective other of the pump-out line or the pump-around line .
  • the method comprises the alternating, in particular periodically alternating, pumping back and forth between the liquid level in the pump-out line and the liquid level in the pump-around line, the periodically alternating pumping back and forth in particular having a sinusoidal includes vibration.
  • the activation of the respective pump is period-shifted in relation to the natural period between the Pump-out line and the pump-out line carried out with a natural frequency oscillating washing liquid column by the controller.
  • the laundry care appliance 100 includes a dispensing tray 101 into which the laundry care substance, such as detergent, can be filled.
  • the laundry care appliance 100 includes a door 103 for loading the laundry care appliance 100 with laundry.
  • FIG. 2 shows a schematic view of a laundry care appliance with a pump device.
  • the laundry care appliance 100 has a tub 105 for holding washing liquid.
  • the laundry care appliance 100 has a laundry drum 107 for receiving laundry.
  • the tub 105 has a drain opening 109 to drain washing liquid out of the tub 105 .
  • the laundry care appliance 100 has an inlet element 111, in particular an inlet nozzle, which is designed to supply pumped washing liquid to the tub 105 or to the laundry accommodated in the laundry drum 107.
  • the laundry care appliance 100 has a drain line 113 which fluidically connects the drain opening 109 to a pumping device 115 for pumping the washing liquid connects.
  • the laundry care appliance 100 also has a pump-out line 117 which fluidically connects the pump device 115 to an in 2 only schematically illustrated outer area 119 of the laundry care appliance 100 connects.
  • An outlet opening 121 of the laundry care appliance 100 is shown here schematically.
  • the laundry care appliance 100 also has a pump-around line 123 which fluidly connects the pump device 115 to the inlet element 111 .
  • the pumping device 115 has a first pump 125-1, which is designed with a nominal pump capacity to pump washing liquid out of the tub 105 through the drain opening 109, through the drain line 113 and through the pump-out line 117 out of the laundry care appliance 100 in order to pump used washing liquid out of the laundry care appliance 100 to be removed after the washing process.
  • the pumping device 115 has a second pump 125-2, which is designed to pump washing liquid out of the tub 105 through the drain opening 109, through the drain line 113 into the pumping line 123 and to pump the pumped washing liquid out of the pumping line 123 through the Inlet element 111 again supply the tub 105 in order to wet the laundry again as part of a pumping process with the washing liquid or to flood the already wetted laundry again for an improved cleaning or washing process.
  • a second pump 125-2 which is designed to pump washing liquid out of the tub 105 through the drain opening 109, through the drain line 113 into the pumping line 123 and to pump the pumped washing liquid out of the pumping line 123 through the Inlet element 111 again supply the tub 105 in order to wet the laundry again as part of a pumping process with the washing liquid or to flood the already wetted laundry again for an improved cleaning or washing process.
  • pumping device 115 has a common suction chamber 127, which is fluidically connected, in particular by a suction connection, to discharge line 113
  • pumping device 115 has a pumping pressure chamber 129, which is fluidly connected, in particular by a pumping pressure connection, to pumping line 123
  • the pumping device 115 has an evacuation pressure chamber 131 which is fluidically connected to the evacuation line 117, in particular by an evacuation pressure nozzle.
  • the first pump 125-1 comprises the pump-down pressure chamber 131 and in particular an in 2 Abpumpsaugrohr not shown and includes the second pump 125-2, the Umpumpdruckschschschschschschschschschschschschschschschschschschschschschiana
  • the laundry care appliance 100 also has a controller 133 for controlling the pump device 115, which is designed to activate the first pump 125-1 or the second pump 125-2 of the pump device 115 for pumping washing liquid.
  • the user puts laundry care substance, such as detergent, into an in 2 non-illustrated dispensing bowl 101 of the laundry care device 100.
  • laundry care substance such as detergent
  • water is directed into the dispensing bowl 101 using a solenoid valve, the laundry care substance with the water through an in 2 filling line, not shown, is fed to the tub 105 and collects in a lower area of the tub 105 near the drain opening 109 .
  • the laundry drum 107 is moved and the laundry care substance is dissolved primarily by diffusion and convection processes caused by the drum rotation, as a result of which a homogeneous washing liquid is obtained in a relatively time-consuming manner. Since undissolved, highly concentrated laundry care substance on the laundry can cause discoloration damage, good, rapid and complete dissolution of the laundry care substance is necessary, e.g exclude the washing process.
  • a tub seal is generally arranged at the drain opening 109, which prevents washing liquid from unintentionally flowing out of the tub 105 through the drain opening 109, which means that if there is no pumping system, laundry care substance can be lost and the washing process can no longer be carried out can be carried out according to the expected washing result.
  • a tub seal is generally dispensed with and the loss of laundry care substance is compensated for by the design of the washing process, such as additional components, in order to ensure an advantageous washing result.
  • the detergent that is already dissolved in the washing liquid is fed back to the laundry again and again by the circulation function by activating the circulation pump.
  • the controller 133 is designed to activate one of the pumps 125-1, 125-2 of the pumping device 115 for pumping the washing liquid with a reduced pump capacity in a first period of time in order to pump washing liquid up to a liquid level 135-1 in the pump-out line 117 or up to a To pump liquid level 135-2 in the pump-over line 123.
  • the controller 133 is designed to activate the other of the pumps 125-1, 125-2 of the pump device 115 for pumping the washing liquid with a reduced pump capacity in a second time period following the first time period in order to pump the washing liquid out of the respective pump-out line 117 or To pump pump-over line 123 and to pump the pumped washing liquid up to a liquid level 135-1, 135-2 in the other of the pump-out line 117 or the pump-over line 123.
  • the washing liquid in the drain line 113 is pumped back and forth between the pump-around line 123 and the pump-out line 117 in order to clearly increase the diffusion-like dissolving process of the laundry care substance through corresponding convection accelerate.
  • the washing liquid pumped back and forth flows in particular between the pump-around line 123 and the pump-out line 117 through the pressure chambers 129, 131 and through the common suction chamber 127 of the pumping device 115, without the washing liquid pumped back and forth flowing through the drain opening 109 into the tub 105 can penetrate, so that contact of undissolved laundry care substance with the laundry in the laundry drum 107 can be prevented during the dissolving process.
  • the respective pumps 125-1, 125-2 in contrast to the pumping out or pumping process, are operated with a reduced pump capacity, so that it is ensured that the washing liquid pumped by the first pump 125-1 only reaches the liquid level 135 -1 is pumped out of the laundry care appliance 100 in the pump-out line 117 and not further through the outlet opening 121, and that the washing liquid pumped by the second pump 125-2 is only pumped up to the liquid level 135-2 in the pump-around line 123 and not beyond it the inlet element 111 is supplied to the laundry in the laundry drum 107 .
  • the controller 133 is designed to activate the first pump 125-1 of the pumping device 115 for pumping the washing liquid with a reduced pump capacity in the first period of time in order to pump washing liquid up to a liquid level 135-1 in the pump-out line 117, and is controller 133 is configured to activate the second pump 125-2 of pumping device 115 for pumping the washing liquid at a reduced pump capacity in the second time period following the first time period in order to pump the washing liquid out of pump-out line 117 and to pump the washing liquid up to a liquid level 135-2 in the pump-over line 123 to pump.
  • the controller 133 is designed to activate the second pump 125-2 of the pumping device 115 for pumping the washing liquid with a reduced pump capacity in the first period of time in order to pump washing liquid up to a liquid level 135-2 in the pump-around line 123, and the controller 133 is designed to activate the first pump 125-1 of the pumping device 115 for pumping the washing liquid with a reduced pump output in the second time period following the first time period in order to pump the washing liquid out of the pump-around line 123 and the pumped washing liquid to pump up to a liquid level 135-1 in the pump-out line 117.
  • the liquid level 135-1 in the pump-out line 117 is in particular below the outlet opening 121.
  • the liquid level 135- 1 in particular below the section of the pump-out line 117 that runs above the outlet opening 121 is in particular below the section of the pump-out line 117 that runs above the outlet opening 121.
  • the liquid level 135-2 in the pump-around line 123 is in particular below the inlet element 111. If the pump-around line 123 has a section which runs above the inlet element 111, there is the Liquid level 135-2, in particular below that section of the pump-over line 123 that runs above the inlet element 111.
  • controller 133 is configured to repeat the first period of time and the second period of time following the first period of time after the end of the second period of time, with controller 133 being configured in particular to time the first and second period of time to repeat periodically.
  • the controller 133 alternately activates the first and second pumps 125-1, 125-2 of the pumping device 115 in order to pump the washing liquid back and forth between the liquid level 135-1 in the pump-out line 117 and the liquid level 135-2 in the pump-around line 123 , In particular, periodically to pump back and forth, whereby an advantageous triggering of the laundry care substance can be ensured.
  • the controller 133 is designed in particular to start the subsequent second or first time period directly after the end of the first or second time period in order to pump the washing liquid through the pumps 125-1, 125-2 of the pumping device 115 without a break from the respective pump-out line 117 or pump-over line 123 and to pump the pumped washing liquid into the respective other of the pump-out line 117 or the pump-over line 123 .
  • controller 133 is designed, in particular, to continue to operate pump 125-1, 125-2, which was activated during the previous time period, during a time interval between the first and second time period and/or during a time interval between the second and first time period in order to of the time interval to keep the washing liquid at the respective liquid level 135-1, 135-2 in the pump-out line 117 or pump-over line 123.
  • the delayed activation of the respective other pump 125-1, 125-2 during the subsequent second or first time interval due to the time interval can counteract an undesired resonance of the washing liquid column oscillating between the pump-out line 117 and the pump-around line 123.
  • controller 133 is designed to activate pump 125-1, 125-2, which is activated during the first and/or second time period, with a period offset in relation to the natural period of a washing liquid column oscillating at a natural frequency between pump-out line 117 and pump-around line 123.
  • the controller 133 is designed to increase the pump capacity of the respective pump 125-1, 125-2 directly at the beginning of the respective time segment, in particular with a high speed gradient, to the reduced pump capacity in order to mix the washing liquid without a time delay with the to pump reduced pump power.
  • the controller 133 is designed to continuously increase the pumping power of the respective pump 125-1, 125-2 during a pumping time period at the beginning of the respective time segment, in particular with a low speed gradient, to the reduced pumping power.
  • the reduced pump output is greater than the return flow of the washing liquid in the pump-out line 117 or pump-around line 123 caused by gravity, since the flow in the oscillatable system is subject to friction.
  • the laundry care appliance 100 has, in particular, a power detection element 137 for detecting an electrical power characteristic of the respective pump 125-1, 125-2, with the controller 133 being designed to assign the detected electrical power characteristic to a reference power characteristic of the respective pump 125-1, 125-2 Compare, wherein the controller 133 is formed, the respective End period based on the comparison of the detected electrical power characteristic with the reference power characteristic.
  • the performance characteristics can include, for example, the supply current and/or the motor torque of the respective pump motor.
  • the reference performance characteristic here corresponds to the performance characteristic of the respective pump 125-1, 125-2, in which the respective pump 125-1, 125-2 pumps washing liquid up to the respective liquid level 135-1, 135-2 in the pump-out line 117 or pump-around line 123 .
  • the controller 133 can recognize that the washing liquid has reached the respective liquid level 135-1, 135-2, and the controller 133 can end the respective time segment .
  • the power detection element 137 can also be designed in particular to detect a further electrical power characteristic of the respective pump 125-1, 125-2.
  • the controller 133 is designed here to compare the detected further electrical power characteristic with a further reference power characteristic of the respective pump 125-1, 125-2.
  • Controller 133 is configured, in particular, to activate second pump 125-2 for pumping the washing liquid at a nominal pump power on the basis of the comparison of the detected further electrical power characteristic with the further reference power characteristic during a third time period following the second time period in order to pump washing liquid through the drain opening 109 and through the drain line 113 into the pump-around line 123 and to supply the washing liquid pumped into the pump-around line 123 through the inlet element 111 to the tub 105 again.
  • the power detection element 137 has recognized a power threshold value at which the originally undissolved two-phase washing liquid comprising solid, powdered washing additives and liquid fluid is finally completely in one phase and can be fed to the wash batch without hesitation, without the risk of laundry discoloration.
  • the controller 133 can recognize when the laundry care substance has completely dissolved in the washing liquid.
  • the controller 133 can, after the end of the second period of time, operate the second pump 125-2 in a subsequent third period of time with a nominal pump power and effectively supply washing liquid through the inlet element 111 into the tub 105 as part of a pumping process.
  • the laundry care appliance 100 has, in particular, a level sensor for detecting a level of washing liquid in the pump-around line 123, with the controller 133 being configured to end the respective period of time when the detected level of the washing liquid corresponds to the liquid level 135-2 in the pump-around line 123 corresponds, and/or the laundry care appliance 100 has, in particular, a further level sensor for detecting a further level of washing liquid in the pump-out line 117, with the controller 133 being designed to end the respective time period when the detected level of the washing liquid reaches the liquid level 135-1 in the pump-out line 117 corresponds.
  • An advantageous dissolution of the laundry care substance in the washing liquid is achieved by the alternating pumping or return of the washing liquid by the pumping device 115 during the first or second period of time. In this way, damage to the laundry due to undissolved laundry care substance can be avoided in the event of improper dosing of laundry care substance.
  • FIG. 3 shows a graphic representation of a pumping process of a pumping device in a laundry care appliance.
  • the representation (a) of 3 shows the pump power of a second pump 125-2, in particular a circulation pump, of a pump device 115 along the ordinate axis 139, the pump power being shown as a function of time, which is plotted along the abscissa axis 141.
  • the representation (b) of 3 shows the pump power of a first pump 125-1, in particular pump, of a pump device 115 along the ordinate axis 139, the pump power being shown as a function of time, which is plotted along the abscissa axis 141.
  • the representation (c) of 3 shows the height of a washing liquid column along the ordinate axis 139 in a pump-over line 123 fluidically connected to the second pump 125-2, the height being shown as a function of time, which is plotted along the abscissa axis 141.
  • the representation (c) of 3 shows the height of a washing liquid column along the further ordinate axis 140 in a pump-out line 117 fluidically connected to the first pump 125-1, the height being shown as a function of time, which is plotted along the abscissa axis 141.
  • the second pump 125-2 is activated by a controller 133 of the laundry care appliance 100 and pumps washing liquid with a reduced pump capacity 145-1 into the pumping line 123 until the height of the washing liquid in the pumping line 123 reaches a liquid level 135- 2 in the pump-over line 123 is reached.
  • the second pump 125-2 is deactivated and the first pump 125-1 is activated and pumps washing liquid with a reduced pump capacity 145-1 into the pump-out line 117 until the Height of the washing liquid in the pump-out line 117 reaches a liquid level 135-1 in the pump-out line 117.
  • the second time segment 143-2 is again followed by a first time segment 143-1, and the new first time segment 143-1 is again followed by a second time segment 143-2, where the controller 133 runs the time segments 143-1, 143-2 repeated in particular until the laundry care substance has completely dissolved or the time segments 143-1, 143-2 stop after a specific number of repetitions.
  • FIG. 4 shows a schematic representation of a method for dissolving laundry care substance in a laundry care appliance.
  • the method 200 comprises, as a first method step, activating 201 one of the pumps 125-1, 125-2 of the pumping device 115 for pumping the washing liquid with a reduced pump capacity 145-1 in a first time segment 143-1 by the controller 133 in order to pump washing liquid up to a liquid level 135-1 in the pump-out line 117 or up to a liquid level 135-2 in the pump-over line 123 to pump.
  • the method 200 comprises, as a second method step, activating 203 the other of the pumps 125-1, 125-2 of the pumping device 115 for pumping the washing liquid with a reduced pump output 145-1 in a second time segment 143- following the first time segment 143-1. 2 by the controller 133 to pump the pumped-out washing liquid up to a liquid level 135-1, 135-2 in the other of the pump-out line 117 or the pump-over line 123.

Landscapes

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

Claims (14)

  1. Appareil d'entretien du linge (100) comprenant une cuve de lavage (105) pour recevoir du liquide de lavage, la cuve de lavage (105) comprenant un orifice d'évacuation (109) et un élément d'admission (111), un dispositif de pompage (115) pour pomper le liquide de lavage, une conduite de sortie (113), qui relie fluidiquement l'orifice de sortie (109) au dispositif de pompage (115), et une conduite de vidange (117), qui relie fluidiquement le dispositif de pompage (115) à l'extérieur (119) de l'appareil d'entretien du linge (100),
    dans lequel le dispositif de pompage (115) comprend une première pompe (125-1), qui est configurée pour pomper le liquide de lavage à partir de la cuve de lavage (105) à travers l'orifice de sortie (109), à travers la conduite de sortie (113) et à travers la conduite de vidange (117) hors de l'appareil d'entretien du linge (100), et un organe de commande (133) pour commander le dispositif de pompage (115), dans lequel l'organe de commande (133) est configuré pour activer la première pompe (125-1) du dispositif de pompage (115) pour pomper le liquide de lavage afin de pomper le liquide de lavage jusqu'à un niveau de liquide (135-1) dans la conduite de vidange (117),
    dans lequel l'appareil d'entretien du linge (100) est équipé d'une conduite de recirculation (123), qui relie fluidiquement le dispositif de pompage (115) à l'élément d'admission (111),
    le dispositif de pompage (115) comprend une deuxième pompe (125-2), qui est configurée pour pomper le liquide de lavage à partir de la cuve de lavage (105) à travers l'orifice de sortie (109) et à travers la conduite de sortie (113) jusque dans la conduite de recirculation (123) et ré-acheminer le liquide de lavage à partir de la conduite de recirculation (123), via l'élément d'admission (111), dans la cuve de lavage (105),
    dans lequel l'organe de commande (133) est configuré pour activer l'une des pompes (125-1, 125-2) du dispositif de pompage (115) pour pomper le liquide de lavage dans une première période de temps (143-1), afin de pomper le liquide de lavage jusqu'au niveau de liquide (135-1) dans la conduite de vidange (117) ou jusqu'à un niveau de liquide (135-2) dans la conduite de recirculation (123), et
    l'organe de commande (133) est configuré pour activer l'autre des pompes (125-1, 125-2) du dispositif de pompage (115) pour pomper le liquide de lavage dans une deuxième période de temps (143-2) consécutive à la première période de temps (143-1), afin de pomper le liquide de lavage respectivement à partir de la conduite de vidange (117) ou de la conduite de recirculation (123) et pomper le liquide de lavage pompé jusqu'à un niveau de liquide (135-1, 135-2) dans l'autre respective de la conduite de vidange (117) ou de la conduite de recirculation (123), et
    dans lequel l'organe de commande (133) est configuré pour désactiver l'une des pompes (125-1, 125-2) du dispositif de pompage (115) dans la deuxième période de temps (143-2) consécutive à la première période de temps (143-1),
    caractérisé en ce que l'organe de commande (133) est configuré pour répéter, après la fin de la deuxième période de temps (143-2), la première période de temps (143-1) et la deuxième période de temps (143-2) consécutive à la première période de temps (143-1), afin de pomper en un mouvement de va-et-vient le liquide de lavage par les pompes (125-1, 125-2) du dispositif de pompage (115) alternativement entre le niveau de liquide (135-1) dans la conduite de vidange (117) et le niveau de liquide (135-2) dans la conduite de recirculation (123),
    dans lequel l'organe de commande (133) est en particulier configuré pour répéter de façon intermittente la première et la deuxième périodes de temps (143-1, 143-2), afin de pomper en un mouvement de va-et-vient le liquide de lavage par les pompes (125-1, 125-2) du dispositif de pompage (115) de façon intermittente alternativement entre le niveau de liquide (135-1) dans la conduite de vidange (117) et le niveau de liquide (135-2) dans la conduite de recirculation (123).
  2. Appareil d'entretien du linge (100) selon la revendication 1, caractérisé en ce que la première pompe (125-1) est configurée pour évacuer le liquide de lavage à partir de la cuve de lavage (105) à une puissance de pompage nominale par la conduite de vidange (117) hors de l'appareil d'entretien du linge (100),
    en ce que la deuxième pompe (125-2) est configurée pour ré-acheminer le liquide de lavage provenant de la cuve de lavage (105) dans la cuve de lavage (105), à une puissance de pompage nominale, via l'élément d'admission (111),
    en ce que l'organe de commande (133) est configuré pour activer l'une des pompes (125-1, 125-2) du dispositif de pompage (115) pendant la première période de temps (143-1) afin de pomper le liquide de lavage à une puissance de pompage réduite (145-1) et
    en ce que l'organe de commande (133) est configuré pour activer pendant la deuxième période de temps (143-2) l'autre des pompes (125-1, 125-2) du dispositif de pompage (115) afin de pomper le liquide de lavage à une puissance de pompage réduite (145-1).
  3. Appareil d'entretien du linge (100) selon la revendication 1 ou 2, caractérisé
    en ce que le dispositif de pompage (115) comprend une chambre d'aspiration commune (127), qui est reliée fluidiquement à la conduite de sortie (113), en particulier par une tubulure d'aspiration,
    en ce que le dispositif de pompage (115) comprend une chambre à pression de recirculation (129), qui est reliée fluidiquement à la conduite de recirculation (123), en particulier par une tubulure à pression de recirculation, et
    en ce que le dispositif de pompage (115) comprend une chambre à pression de vidange (131), qui est reliée fluidiquement à la conduite de vidange (117), en particulier par une tubulure à pression de vidange,
    dans lequel la chambre à pression de recirculation (129) est reliée fluidiquement à la chambre d'aspiration commune (127) par un tuyau d'aspiration de recirculation, la chambre à pression de vidange (131) est reliée fluidiquement à la chambre d'aspiration commune (127) par un tuyau d'aspiration de vidange, et
    la première pompe (125-1) comprend la chambre à pression de vidange (131) et la deuxième pompe (125-2) comprend la chambre à pression de recirculation (129).
  4. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé
    en ce que l'organe de commande (133) est configuré de façon à initier directement, après la fin de la première ou de la deuxième période de temps (143-1, 143-2), la deuxième ou première période de temps consécutive (143-2, 143-1), afin de pomper le liquide de lavage par les pompes (125-1, 125-2) du dispositif de pompage (115) sans arrêt à partir de la conduite de vidange (117) ou la conduite de recirculation (123) respective et pomper le liquide de lavage pompé respectivement dans l'autre de la conduite de vidange (117) ou la conduite de recirculation (123), ou
    en ce que l'organe de commande (133) est configuré pour continuer à faire fonctionner, pendant un intervalle de temps entre la première et la deuxième périodes de temps (143-1, 143-2) et/ou pendant un intervalle de temps entre la deuxième et la première périodes de temps (143-2, 143-1), la pompe (125-1, 125-2) activée durant la période de temps précédente (143-1, 143-2), afin de maintenir le liquide de lavage au niveau de liquide (135-1, 135-2) respectif dans la conduite de vidange (117) ou dans la conduite de recirculation (123) pendant l'intervalle de temps.
  5. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce qu'une colonne du liquide de lavage entre la conduite de vidange (117) et la conduite de recirculation (123) pendant la première et la deuxième période de temps (143-1, 143-2) oscille à une fréquence propre ω), qui est caractérisée par la formule suivante ω = (2g/h)1/2, où g est l'accélération de la pesanteur sur terre, et h est la hauteur du niveau de liquide respectif (135-1, 135-2) dans la conduite de vidange (117) ou la conduite de recirculation (123) par rapport au point zéro du liquide de lavage respectivement dans la conduite de recirculation (123) ou la conduite de vidange (117),
    dans lequel l'organe de commande (133) est configuré pour activer les pompes (125-1, 125-2) durant la première et la deuxième périodes de temps (143-1, 143-2) alternativement avec une fréquence d'activation, qui est différente de la fréquence propre du liquide de lavage oscillant.
  6. Appareil d'entretien du linge (100) selon la revendication 2 ou l'une des revendications 3 à 5 se référant à la revendication 2, caractérisé en ce que l'organe de commande (133) est configuré pour augmenter directement la puissance de pompage de la pompe respective (125-1, 125-2) au début de la période de temps respective (143-1, 143-2), en particulier avec un gradient de vitesse de rotation élevé, jusqu'à la puissance de pompage réduite (145-1), afin de transporter le liquide de lavage au début de la période temps respective (143-1, 143-2) sans délai à la puissance de pompage réduite (145-1), ou
    en ce que l'organe de commande (133) est configuré pour augmenter de façon continue la puissance de pompage de la pompe respective (125-1, 125-2) pendant un lapse de temps au début de la période de temps respective (143-1, 143-2), en particulier avec un faible gradient de vitesse de rotation, jusqu'à la puissance de pompage réduite (145-1).
  7. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un élément de détection de puissance (137) pour détecter une caractéristique de puissance électrique de la pompe respective (125-1, 125-2),
    dans lequel l'organe de commande (133) est configuré pour comparer la caractéristique de puissance électrique détectée à une caractéristique de puissance de référence de la pompe respective (125-1, 125-2), et
    dans lequel l'organe de commande (133) est configuré pour terminer la période de temps respective (143-1, 143-2) sur la base de la comparaison de la caractéristique de puissance électrique détectée avec la caractéristique de puissance de référence.
  8. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un élément de détection de puissance (137) pour détecter une caractéristique de puissance électrique supplémentaire de la pompe respective (125-1, 125-2),
    dans lequel l'organe de commande (133) est configuré pour comparer la caractéristique de puissance électrique supplémentaire détectée avec une caractéristique de puissance de référence supplémentaire de la pompe respective (125-1, 125-2),
    dans lequel l'organe de commande (133) est configuré pour, sur la base de la comparaison de la caractéristique de puissance électrique supplémentaire détectée avec la caractéristique de puissance de référence supplémentaire, activer la deuxième pompe (125-2) pendant une troisième période de temps consécutive à la deuxième période de temps (143-2) pour pomper le liquide de lavage à une puissance de pompage nominale, afin de ré-acheminer le liquide de lavage par la conduite de recirculation (123) et via l'élément d'entrée (111) jusque dans la cuve de lavage (105).
  9. Appareil d'entretien du linge (100) selon la revendication 7 ou 8, caractérisé en ce que l'élément de détection de puissance (137) comprend un capteur de courant pour détecter un courant d'alimentation et/ou un courant formant un couple de rotation de la pompe respective (125-1, 125-2).
  10. Appareil d'entretien du linge (100) selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'entretien du linge (100) comprend un capteur de niveau pour détecter un niveau de liquide de lavage dans la conduite de recirculation (123),
    dans lequel l'organe de commande (133) est configuré pour terminer la période de temps respective (143-1, 143-2) lorsque le niveau détecté de liquide de lavage correspond au niveau de liquide (135-2) dans la conduite de recirculation (123) et/ou en ce que l'appareil d'entretien du linge (100) comprend un capteur de niveau supplémentaire pour détecter un niveau supplémentaire de liquide de lavage dans la conduite de vidange (117), dans lequel l'organe de commande (133) est configuré pour terminer la période de temps respective (143-1, 143-2) lorsque le niveau détecté de liquide de lavage correspond au niveau de liquide supplémentaire (135-1) dans la conduite de vidange (117).
  11. Procédé de fonctionnement d'un appareil d'entretien du linge (100), dans lequel l'appareil d'entretien du linge (100) comprend une cuve de lavage (105) pour recevoir du liquide de lavage, la cuve de lavage (105) comprenant un orifice de sortie (109) et un élément d'admission (111),
    dans lequel l'appareil d'entretien du linge (100) comprend un dispositif de pompage (115) pour pomper le liquide de lavage,
    une conduite de sortie (113), qui relie fluidiquement l'orifice de sortie (109) au dispositif de pompage (115), et une conduite de vidange (117), qui relie fluidiquement le dispositif de pompage (115) à l'extérieur (119) de l'appareil d'entretien du linge (100),
    dans lequel le dispositif de pompage (115) comprend une première pompe (125-1), qui est configurée pour pomper le liquide de lavage à partir de la cuve de lavage (105) à travers l'orifice de sortie (109), à travers la conduite de sortie (113) et à travers la conduite de vidange (117) hors de l'appareil d'entretien du linge (100), et un organe de commande (133) pour commander le dispositif de pompage (115), dans lequel le procédé (200) comprend une étape d'activation (201) de la première pompe (125-1) du dispositif de pompage (115) pour pomper le liquide de lavage, afin de pomper le liquide de lavage jusqu'à un niveau de liquide (135-1) dans la conduite de vidange (117),
    dans lequel l'appareil d'entretien du linge (100) comprend une conduite de recirculation (123), qui relie fluidiquement le dispositif de pompage (115) à l'élément d'admission (111), et
    le dispositif de pompage (115) comprend une deuxième pompe (125-2), qui est configurée pour pomper le liquide de lavage à partir de la cuve de lavage (105) par l'orifice de sortie (109) et par la conduite de sortie (113) jusque dans la conduite de recirculation (123) et ré-acheminer le liquide de lavage à partir de la conduite de recirculation (123) et via l'élément d'admission (111) dans la cuve de lavage (105), dans lequel le procédé (200) comprend les étapes suivantes :
    activation (201) par l'organe de commande (133) de l'une des pompes (125-1, 125-2) du dispositif de pompage (115) pour pomper le liquide de lavage dans une première période de temps (143-1), afin de pomper le liquide de lavage jusqu'à un niveau de liquide (135-1) dans la conduite de vidange (117) ou jusqu'à un niveau de liquide (135-2) dans la conduite de recirculation (123), et
    activation (203) par l'organe de commande (133) de l'autre des pompes (125-1, 125-2) du dispositif de pompage (115) pour pomper le liquide de lavage dans une deuxième période de temps (143-2) consécutive à la première période de temps (143-1), afin de pomper le liquide de lavage pompé jusqu'à un niveau de liquide (135-1, 135-2) respectivement dans l'autre de la conduite de vidange (117) ou la conduite de recirculation (123),
    désactivation par l'organe de commande (133) de l'une des pompes (125-1, 125-2) du dispositif de pompage (115) dans la deuxième période de temps (143-2) consécutive à la première période de temps (143-1),
    caractérisé en ce que le procédé (200) comprend le pompage en va-et-vient alternatif, en particulier alternatif de façon intermittente entre le niveau de liquide (135-1) dans la conduite de vidange (117) et le niveau de liquide (135-2) dans la conduite de recirculation (123), dans lequel le pompage en va-et-vient, alternatif de façon intermittente comprend en particulier une oscillation sinusoïdale.
  12. Procédé (200) selon la revendication 11, caractérisé en ce que la première pompe (125.1) est configurée pour pomper le liquide de lavage à partir de la cuve de lavage (105) par la conduite de vidange (117), à une puissance de pompage nominale, hors de l'appareil d'entretien du linge,
    en ce que la deuxième pompe (125-2) est configurée pour ré-acheminer le liquide de lavage à partir de la cuve de lavage (105) dans la cuve de lavage (105) par l'élément d'admission (111) à une puissance de pompage nominale, et
    en ce que le procédé (200) comprend les étapes supplémentaires suivantes :
    activation (201), par l'organe de commande (133), de l'une des pompes (125-1, 125-2) du dispositif de pompage (115) pendant la première période de temps (143-1) pour pomper le liquide de lavage à une puissance de pompage réduite (145-1) et
    activation (203), par l'organe de commande (133), de l'autre des pompes (125-1, 125-2) du dispositif de pompage (115) pour pomper le liquide de lavage à une puissance de pompage réduite (145-1) pendant la deuxième période de temps (143-2) consécutive à la première période de temps (143-1).
  13. Procédé selon la revendication 11 ou 12, caractérisé en ce que le procédé (200) comprend les étapes supplémentaires suivantes :
    nouvelle activation (205), par l'organe de commande (133), de l'une des pompes (125-1, 125-2) du dispositif de pompage (115) pour pomper le liquide de lavage pendant une première période de temps (143-1) consécutive à la deuxième période de temps (143-2), afin de pomper liquide de lavage à partir de l'autre respective de la conduite de vidange (117) ou de la conduite de recirculation (123) et afin de pomper à nouveau le liquide pompé jusqu'au niveau de liquide (135-1) dans la conduite de vidange (117) ou jusqu'au niveau de liquide (135-2) dans la conduite de recirculation (123), et
    nouvelle activation (207), par l'organe de commande (133), de l'autre des pompes (125-1, 125-2) du dispositif de pompage (115) pour pomper le liquide de lavage pendant une deuxième période de temps (143-2) consécutive à la première période de temps (143-1), afin de pomper le liquide de lavage pompé jusqu'au niveau de liquide (135-1, 135-2) dans l'autre respective de la conduite de vidange (117) ou de la conduite de recirculation (123).
  14. Procédé (200) selon l'une des revendications 11 à 13, caractérisé en ce que l'activation (201, 203, 205, 207) de la pompe respective (125-1, 125-2) est exécutée par l'organe de commande (133) de façon différée en période par rapport à la période naturelle d'une colonne de liquide de lavage oscillant à une fréquence propre entre la conduite de vidange (117) et la conduite de recirculation (123).
EP20179038.3A 2019-06-25 2020-06-09 Dispositif de traitement du linge comprenant une pompe et le procédé pour son fonctionnement Active EP3757273B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019209149.0A DE102019209149A1 (de) 2019-06-25 2019-06-25 Wäschepflegegerät mit einer Pumpvorrichtung und ein Verfahren zum Betreiben des Wäschepflegegeräts

Publications (2)

Publication Number Publication Date
EP3757273A1 EP3757273A1 (fr) 2020-12-30
EP3757273B1 true EP3757273B1 (fr) 2023-08-16

Family

ID=71083415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20179038.3A Active EP3757273B1 (fr) 2019-06-25 2020-06-09 Dispositif de traitement du linge comprenant une pompe et le procédé pour son fonctionnement

Country Status (4)

Country Link
EP (1) EP3757273B1 (fr)
CN (1) CN112127120B (fr)
DE (1) DE102019209149A1 (fr)
PL (1) PL3757273T3 (fr)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1138385B (it) * 1981-05-21 1986-09-17 Eurodomestici Ind Riunite Perfezionamenti alle o nelle macchine lavabiancheria
DE19960265B4 (de) * 1999-12-14 2007-04-12 BSH Bosch und Siemens Hausgeräte GmbH Automatisch gesteuerte Waschmaschine mit Überlaufsicherung
WO2009124923A1 (fr) * 2008-04-09 2009-10-15 Arcelik Anonim Sirketi Machine à laver
DE102009046782A1 (de) * 2008-12-16 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer in zwei Betriebsarten steuerbaren Pumpe
BRPI1001488A2 (pt) * 2010-05-26 2012-02-28 Electrolux Do Brasil S.A. aperfeiçoamento em filtro auto limpante para máquinas de lavar roupas
EP2762632B1 (fr) * 2010-11-22 2016-09-14 Electrolux Home Products Corporation N.V. Procédé de lavage
EP2535454B1 (fr) * 2011-06-14 2021-05-12 Electrolux Home Products Corporation N.V. Machine à laver
EP2792779B1 (fr) * 2013-04-18 2015-09-30 Whirlpool Corporation Procédé pour laver du linge dans une machine de lavage par pulvérisation
CN104452171B (zh) * 2013-09-25 2019-02-19 佛山海尔滚筒洗衣机有限公司 一种滚筒洗衣机及控制方法
DE102015209287B3 (de) * 2015-05-21 2016-07-28 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Laugenpumpe
TWI626351B (zh) * 2015-08-19 2018-06-11 Hitachi Appliances Inc Laundry dryer
JP6357452B2 (ja) * 2015-08-19 2018-07-11 日立アプライアンス株式会社 洗濯乾燥機
AU2015221453B2 (en) * 2015-09-01 2021-09-02 Electrolux Thailand Co. Ltd A Washing Machine
DE102016201446B3 (de) * 2016-02-01 2017-02-09 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Pumpenansteuerung
DE102016205608B3 (de) * 2016-04-05 2017-05-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102016212490A1 (de) * 2016-07-08 2018-01-11 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
DE102016216737B4 (de) * 2016-09-05 2018-03-15 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

Also Published As

Publication number Publication date
DE102019209149A1 (de) 2020-12-31
PL3757273T3 (pl) 2024-02-12
CN112127120B (zh) 2023-12-12
CN112127120A (zh) 2020-12-25
EP3757273A1 (fr) 2020-12-30

Similar Documents

Publication Publication Date Title
EP2348151B1 (fr) Procédé de fonctionnement d'un lave-linge avec un dispositif d'écoulement
DE102012103435A1 (de) Filteranordnung für einen Geschirrspüler
EP3332059B1 (fr) Appareil d'entretien du linge pourvu d'un système à circulation
EP2428608B1 (fr) Procédé de fonctionnement d'une pompe dans un lave-linge, système mécatronique et lave-linge
EP3298189B1 (fr) Appareil d'entretien du linge comprenant une pompe à lessive
EP3351674B1 (fr) Appareil d'entretien de linge doté d'une commande
EP2381827B1 (fr) Procédé de vidange d'un liquide d'un appareil électroménager à circulation d'eau
DE102014206119B4 (de) Verfahren zum Betreiben einer Pumpe in einem Haushaltsgerät und wasserführendes Haushaltsgerät
EP3481985B1 (fr) Appareil de traitement de ligne avec un contrôle
DE102016225146B3 (de) Wäschepflegegerät mit einer Steuerung
EP3411520B1 (fr) Appareil d'entretien du linge muni d'une commande de pompe
EP3757273B1 (fr) Dispositif de traitement du linge comprenant une pompe et le procédé pour son fonctionnement
DE102009002224B4 (de) Wasserführendes Haushaltsgerät, insbesondere Geschirrspülmaschine
EP3507409B1 (fr) Appareil d'entretien du linge doté d'une commande
EP3443156B1 (fr) Lave-linge équipé d'une commande
EP2420609A2 (fr) Pompe à eau de lessive pour appareils ménagers transportant de l'eau et appareil ménager transportant de l'eau
EP2746451A1 (fr) Procédé de vidange d'un liquide à partir d'un appareil ménager transportant de l'eau, notamment depuis un lave-linge, et appareil ménager transportant de l'eau
EP3414385B1 (fr) Appareil d'entretien du linge comprenant une pompe
EP3741899B1 (fr) Appareil d'entretien du linge comprenant une pompe et un dispositif de commande et procédé correspondant de pompage de liquide de lavage
EP3423625B1 (fr) Appareil d'entretien du linge comprenant une pompe et mèthode
EP4022118B1 (fr) Appareil de traitement de linge comprenant un dispositif de commande
DE102017211573A1 (de) Verfahren zum Betrieb einer Waschmaschine mit verbesserter Pumpenzustandserkennung und hierzu geeignete Waschmaschine
EP4375409A1 (fr) Appareil d'entretien du linge doté d'une commande
DE102021212636A1 (de) Automatisches Dosiersystem zur Dosierung und Beförderung von flüssigen Behandlungsmitteln für wasserführende Haushaltsgeräte
EP3382087A1 (fr) Procédé de fonctionnement d'un appareil de nettoyage à circulation d'eau et appareil de nettoyage à circulation d'eau

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210630

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: D06F 33/36 20200101ALN20230127BHEP

Ipc: D06F 39/08 20060101AFI20230127BHEP

RIC1 Information provided on ipc code assigned before grant

Ipc: D06F 33/36 20200101ALN20230206BHEP

Ipc: D06F 39/08 20060101AFI20230206BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: D06F 33/36 20200101ALN20230302BHEP

Ipc: D06F 39/08 20060101AFI20230302BHEP

INTG Intention to grant announced

Effective date: 20230320

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: DE

Ref legal event code: R096

Ref document number: 502020004710

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231218

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231116

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231216

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231117

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502020004710

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240630

Year of fee payment: 5

26N No opposition filed

Effective date: 20240517

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230816

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20240524

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20240529

Year of fee payment: 5