EP3623519A1 - Method and device for operating a cleaning appliance and cleaning appliance - Google Patents
Method and device for operating a cleaning appliance and cleaning appliance Download PDFInfo
- Publication number
- EP3623519A1 EP3623519A1 EP19194020.4A EP19194020A EP3623519A1 EP 3623519 A1 EP3623519 A1 EP 3623519A1 EP 19194020 A EP19194020 A EP 19194020A EP 3623519 A1 EP3623519 A1 EP 3623519A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- items
- cleaned
- phase
- liquor
- washing liquor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 85
- 230000008569 process Effects 0.000 claims abstract description 58
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 17
- 238000005406 washing Methods 0.000 claims description 66
- 238000004590 computer program Methods 0.000 claims description 4
- 239000008399 tap water Substances 0.000 claims description 4
- 235000020679 tap water Nutrition 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 31
- 230000000694 effects Effects 0.000 description 10
- 238000013459 approach Methods 0.000 description 6
- 239000004753 textile Substances 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 239000003599 detergent Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000010412 laundry washing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
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- 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
- D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
- D06F33/72—Control of the energy or water consumption
-
- 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
- D06F21/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement
- D06F21/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement about a horizontal axis
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/68—Operation mode; Program phase
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/08—Draining of washing liquids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/10—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
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- D06F2202/04—
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- D06F2202/085—
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- D06F2202/10—
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- D06F2204/04—
-
- D06F2204/06—
-
- D06F2204/084—
Definitions
- the invention relates to a method and a device for operating a cleaning device and a cleaning device.
- the object of the invention is to provide an improved method and an improved device for operating a cleaning device and an improved cleaning device.
- a cleaning process can be divided into phases in which a different saturation state of the laundry can be set by means of the amount of washing liquor.
- an efficient mechanical washing action can advantageously be achieved in the first phase when the items to be cleaned are completely saturated with washing liquor, and in the second phase a reduced washing liquor can be used to achieve a washing temperature for better hygiene with little use of energy, which is advantageously energy-saving.
- the approach described here can be used accordingly in connection with a commercial or professional device, for example a medical device, such as a cleaning or disinfection device, a small sterilizer, a large-scale disinfector or a container washing system .
- a medical device such as a cleaning or disinfection device, a small sterilizer, a large-scale disinfector or a container washing system .
- a method for operating a cleaning device comprises a tub for holding a washing liquor and a drum for holding items to be cleaned.
- the method has a step of performing a first phase of a cleaning process and a step of Perform a second phase of the cleaning process.
- the first phase of the cleaning process is carried out with a wash liquor.
- the items to be cleaned are completely saturated with wash liquor.
- the wash liquor is reduced by a proportion.
- the items to be cleaned are partially saturated with wash liquor in the second phase.
- in the step of executing the wash liquor is heated depending on a level of the wash liquor in the tub to generate water vapor from the wash liquor for heating the items to be cleaned.
- the cleaning device can be, for example, a washing machine or a washer-dryer, or a combined washer-dryer.
- the drum can be rotatably arranged in the tub.
- the tub can be made of stainless steel or plastic, for example.
- the washing liquor can be understood as the amount of liquid that is used during a cleaning process.
- the items to be cleaned can be laundry, for example.
- the washing liquor can consist, for example, of tap water with or without detergent.
- the cleaning process can be, for example, a predefined washing program of the cleaning device.
- the cleaning process can also include only a partial sequence of the washing program, for example the main wash or the rinsing of the items to be cleaned.
- the wash liquor can be reduced by 25 to 35 percent.
- the items to be cleaned can have, for example, a saturation value of 100 percent saturation with the wash liquor
- the items to be cleaned can have, for example, a saturation value of 70 percent saturation with the wash liquor.
- Complete saturation of the items to be cleaned with washing liquor can be understood to mean, for example, a saturation state in which no liquid drips from the items to be cleaned when the drum of the cleaning device rotates at a predefined speed.
- the fill level can be, for example, a predefined height of wash liquor in the tub.
- the water vapor can, for example, condense on the drum and on the items to be cleaned in order to heat the items to be cleaned.
- a heating element which is arranged in the tub and can be flushed by the washing liquor as a function of the fill level can be controlled.
- the heating element can for example be designed as a tubular heater. To heat the wash liquor, the heating element can be completely washed around the wash liquor.
- the items to be cleaned can advantageously be heated particularly efficiently and thus in an energy-saving manner.
- the heating of the washing liquor can be ended when a target temperature of the items to be cleaned is reached.
- the target temperature can be predefined, for example, depending on the cleaning process or items to be cleaned.
- the target temperature can be set so high that germs are killed when the items to be cleaned are heated, which advantageously increases the hygiene effect of the cleaning process.
- the filling level of the wash liquor in the tub can also be monitored in the execution step by means of a pressure sensor of the cleaning device.
- the pressure sensor can be an analog pressure sensor, for example, which is arranged such that it can detect the fill level of the wash liquor in the tub, for example in the tub and outside the drum. This embodiment advantageously allows the fill level to be monitored cost-effectively.
- the washing liquor can be introduced in the performing step.
- the wash liquor can include unheated tap water.
- the washing liquor may not be heated in the step of carrying out.
- the washing liquor introduced can thereby be colder than a temperature in the room in which the cleaning device is installed, for example. This is energetically advantageous since the washing liquor can absorb energy without the need to use heating energy to heat the washing liquor.
- the washing liquor located in the tub can be pumped out to reduce the washing liquor.
- the pumping can take place at least during the effect of a rotary movement of the drum at an expulsion speed in order to remove washing liquor from the items to be cleaned.
- the expulsion speed can be predefined, for example depending on the cleaning process, or depending on which phase of the cleaning process takes place.
- the rotation of the drum with the expulsion speed can also be time-controlled. Pumping can also take place depending on the level. In this way, the washing liquor can advantageously be reduced in a particularly simple, precise and reliable manner before heating in order to heat the items to be cleaned in an energy-saving manner.
- a loading amount of the drum can be detected in the performing step.
- the expulsion speed can be set depending on the load quantity in the execution step.
- the loading quantity can be recorded, for example, by means of a weighing method or a mass inertia method.
- the rotary movement of the drum can thus be effected depending on the amount of loading, which is energy efficient.
- the approach presented here also creates a device which is designed to carry out, control or implement the steps of a variant of a method presented here in corresponding devices.
- This embodiment variant of the invention in the form of a device can also be used to quickly and efficiently achieve the object on which the invention is based.
- the device can be designed to read input signals and to determine and provide output signals using the input signals.
- An input signal can represent, for example, a sensor signal that can be read in via an input interface of the device.
- An output signal can represent a control signal or a data signal that can be provided at an output interface of the device.
- the device can be designed to determine the output signals using a processing rule implemented in hardware or software.
- the device can comprise a logic circuit, an integrated circuit or a software module and can be implemented, for example, as a discrete component or can be comprised by a discrete component.
- the cleaning device comprises a tub for containing a washing liquor and a drum for holding items to be cleaned and an embodiment of the above-mentioned device.
- a computer program product or computer program with program code which can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory, is also advantageous. If the program product or program is executed on a computer or a device, the program product or program can be used to carry out, implement and / or control the steps of the method according to one of the embodiments described above.
- FIG. 1 shows a schematic representation of a cleaning device 100 with a device 105 for operating the cleaning device 100 according to an embodiment.
- a washing machine also called an automatic washing machine, is shown here by way of example as the cleaning device 100.
- the cleaning device 100 comprises a suds container 110 for containing a washing liquor and a drum 115 for receiving items to be cleaned 120.
- items of laundry are received as items of cleaning 120, for example.
- the tub 110 is arranged around the drum 115.
- the cleaning device 100 also has a water inlet and a drain hose 125 with a drain pump 130 and a circulation pump 135.
- the drain pump 130 is designed to pump wash liquor located in the drain container 110 through the drain hose 125.
- a heating element 140 and a pressure sensor 145 are arranged in the region of the tub 110 between the drum 115 and a bottom of the cleaning device 100.
- the device 105 is connected for signal transmission to the drain pump 130, the circulation pump 135, the heating element 140 and the pressure sensor 145.
- the device 105 for operating the cleaning device can be designed as a control device of the cleaning device 100 or as part of the control device.
- the device 105 is designed to control a cleaning process in the cleaning device 100.
- the device 105 is designed to control the execution of a first phase of the cleaning process with a wash liquor, the items to be cleaned being completely saturated with wash liquor in the first phase.
- the device 105 is designed to control the execution of a second phase of the cleaning process. In the second phase of the cleaning process, the wash liquor is reduced by a proportion.
- the items to be cleaned 120 are partially saturated with wash liquor in the second phase.
- the device 105 is also designed, depending on a fill level of the wash liquor in the tub 110, to control heating of the wash liquor in order to generate water vapor from the wash liquor for heating the washware 120.
- the washing liquor can be reduced, for example, so that the items to be cleaned 120 have a saturation value of 70 percent when the items to be cleaned 120 are heated.
- a lower saturation value of the items to be cleaned 120, for example 70 percent, compared to the first phase of the cleaning process is advantageous in order to use as little heating energy as possible in order to achieve the desired target temperature of the items to be cleaned 120.
- treating the items to be cleaned 120 with a larger wash liquor as during the first phase of the cleaning process is advantageous in order to achieve a good mechanical cleaning action of the items to be cleaned 120.
- both advantages can be reconciled, so that on the one hand a good mechanical washing effect of the items to be cleaned 120 is achieved in the first phase, and on the other hand a heating energy required to achieve a desired laundry temperature with a good hygienic effect and activated thermal washing effect of the Cleaning goods 120 in the second phase is less than with a higher amount of washing liquor, as is present in the first phase.
- the main wash is divided into phases in which the different saturation state of the laundry that is required in each case is set.
- the device 105 is also designed to control the heating element 140 which is arranged in the tub 110 and can be rinsed by the washing liquor depending on the fill level. For example, if the heating element 140 is completely washed by the wash liquor in the second phase of the cleaning process at a certain saturation of the washware 120, the heating element 140 can be activated to heat the wash liquor in order to generate the water vapor for heating the washware 120.
- the device 105 is designed to end the heating of the washing liquor when a target temperature of the items to be cleaned 120 has been reached.
- the target temperature can be predefined in accordance with the cleaning process, or can be entered by means of an input device of the cleaning device 100.
- the fill level of the wash liquor in the tub 110 is monitored according to one embodiment by means of the pressure sensor 145.
- the pressure sensor 145 can be designed to provide the detected fill level to the device 105 in the form of an electrical signal.
- the fill level in the tub 110 is determined by the pressure sensor 145, which can be designed as an analog pressure sensor.
- the pressure sensor 145 is here arranged, for example, in such a way that fill levels from a height which is marked here by a minimum fill level 150 can be detected.
- the reference number 155 marks a higher fill level of 15 millimeters water column (mmWS).
- An even higher fill level of 30 millimeters water column, here through the Marked reference numeral 160 means a fill height of 30 mm above the minimum fill level 150.
- the heating element 140 is shown here, for example. B. a tubular heater arranged with which the washing liquor can be heated.
- the heating element 140 can also be designed as a steam generator, as a radiant heater, as an inductive heating element, as a heating fan or as a heat pump.
- the device 105 is designed to control the introduction of the washing liquor, the washing liquor comprising unheated tap water and the washing liquor not being heated in the first phase of the cleaning process.
- the device 105 is designed to control the drain pump 130 in order to reduce the wash liquor, the drain pump 130 being designed to pump off the wash liquor located in the tub 110.
- the device 105 is also designed to effect a rotary movement of the drum 115 at an expulsion speed at the same time in order to remove washing liquor from the items to be cleaned 120.
- the device 105 is also designed to detect a load quantity of the drum 115 and to set the expulsion speed depending on the load quantity in the second phase of the cleaning process.
- the load quantity can be detected by means of a load sensor.
- the load quantity can be recorded before or during the first phase of the cleaning process.
- the first phase of the cleaning process begins with the determination of the load quantity of the drum 115.
- the load quantity can be determined by a weighing method using a load sensor or a method for determining the moment of inertia.
- This is followed by a water run-in phase for introducing the wash liquor in order to set a desired saturation state of the items to be cleaned 120.
- the amount of water required for this varies depending on the type of items to be cleaned 120, for example depending on the type of textile. For example, there are textiles that can absorb 1.5 liters of water per kilogram of textile in their saturated state without 115 water dripping when the drum rotates.
- extremely absorbent textiles can also be used Kilogram of textile absorb approx. 4 liters of water without water dripping off.
- the state in which no liquid drips from the items to be cleaned 120 when the drum 115 rotates can be referred to as full saturation or also 100 percent saturation; the items to be cleaned 120 are then completely saturated.
- the items to be cleaned 120 are washed in the fully saturated state.
- This state of saturation is optimal in terms of energy in order to achieve the highest possible washing effect with the mechanical energy used for rotating the drum 115.
- the temperature of the incoming water is lower than the temperature in the room in which the cleaning device 100 is installed.
- the washing phase with 100 percent saturation is advantageous for removing coarse dirt and larger particles from the items to be cleaned 120.
- the described phase ends when it is determined by a time control that a desired cleaning effect of the items to be cleaned 120 has been achieved.
- a state with reduced saturation is now set.
- the aim of this is to reduce the amount of water to be heated in the wash liquor so that a desired temperature of the items to be cleaned 120 can be achieved with the smallest possible amount of heating energy.
- the desired target temperature can be set especially for a good hygienic washing performance, in addition detergent components such as bleaching ingredients in the washing liquor can be thermally activated by heating, which only develop their full effect at the desired target temperature.
- Figure 2 shows a characteristic curve 205 with respect to a rotational speed of a drum of a cleaning device according to an exemplary embodiment.
- the cleaning device corresponds to or is similar to the cleaning device Figure 1 .
- the characteristic curve 205 is shown in a coordinate system in which the time in seconds is plotted on the abscissa and the speed in revolutions per minute is plotted on the ordinate.
- the characteristic curve 205 shows an example of a section from a cleaning process of a washing process of laundry with a course of a drum speed of the cleaning device.
- the following Figures 3 to 5 each show a different factor of the cleaning process, which is subsequently for the Figures 2 to 5 is described together.
- Figure 3 shows a characteristic curve 305 with respect to a switching state of a drain pump of a cleaning device according to an exemplary embodiment.
- the cleaning device corresponds to or is similar to the cleaning device Figure 1 .
- the characteristic curve 305 is shown in a coordinate system in which the time in seconds is on the abscissa and the time on the ordinate Switching status of the drain pump is applied on / off.
- the characteristic curve 305 shows an example of a section from a cleaning process of a washing process of laundry with a course of the switching state of the drain pump of the cleaning device as a factor of the cleaning process, which is subsequently used for the Figures 2 to 5 is described together.
- Figure 4 shows a characteristic curve 405 with respect to a fill level of a wash liquor in a tub of a cleaning device according to an exemplary embodiment.
- the cleaning device corresponds to or is similar to the cleaning device Figure 1 .
- the characteristic curve 405 is shown in a coordinate system in which the time in seconds is plotted on the abscissa and the fill level of the wash liquor, the alkali fill level, in millimeter water column (mmWS) is plotted on the ordinate.
- the characteristic curve 405 shows an example of a section from a cleaning process of a washing process of laundry with a course of the fill level of the washing liquor in the cleaning device as a factor of the cleaning process, which is subsequently used for the Figures 2 to 5 is described together.
- Figure 5 shows a characteristic curve 505 with respect to a switching state of a heating element of a cleaning device according to an exemplary embodiment.
- the cleaning device corresponds to or is similar to the cleaning device Figure 1 .
- the characteristic curve 505 is shown in a coordinate system in which the time in seconds is plotted on the abscissa and the switching state of a heating element, radiator on / off, is plotted on the ordinate.
- the characteristic curve 505 shows an example of a section from a cleaning process of a laundry washing process with a course of the switching state of the heating element of the cleaning device as a factor of the cleaning process, which is subsequently used for the Figures 2 to 5 is described together.
- the Figures 2 to 5 show a section of the course of the cleaning process in the second phase.
- the in Figure 2 Initial time marked with t0 shows the end point of the first phase of the cleaning process.
- This in Figure 2 The diagram of the drum speed shown at the initial time t0 shows a reversing rhythm which is advantageous for achieving a good washing effect.
- the in Figure 4 The alkali fill level shown has, for example, a height of, for example, 30 mmWS at the initial time t0, just below the lower edge of the drum, but the fill level of the wash liquor can also be lower at the initial time t0. It does not change or changes only insignificantly during the rotation of the drum, since the laundry is in the saturated state in the first phase. So it does not release water to the bottom of the tub, but it does on the other hand also no water from the swamp, since it is saturated and there is no contact with the swamp water.
- the drain pump is switched on and the water in the tub is pumped out, which is also indicated by the Figure 4 shown decrease in the fill level at the first time t1 is shown. It is pumped out until no more water can be pumped out of the tub.
- the washing drum is initially at a standstill and is accelerated at a second point in time t2 to a speed of 50 rpm, for example, as shown in FIG Figure 2 shown. After the imbalance resulting from the arrangement of the laundry in the drum has been determined at a third point in time t3, the drum is accelerated to a speed of, for example, 400 rpm at a fourth point in time t4, the speed then becoming constant at this value held what based on Figure 2 is shown.
- the drain pump remains on as it is off Figure 3 can be seen.
- the speed to which the acceleration here 400 rpm is determined as a function of the load determined at the beginning of the first phase, the type and amount of the load. The higher the load, the higher this drum speed. If the load is high, for example 8 kg, a very high drum speed can be selected because after the spinning and pumping process there is still a sufficient amount of water in the laundry item.
- a drum speed of 300 rpm can be selected for a load of 2 kg, while a drum speed of 400 rpm can be set for a load of 4 kg.
- a drum speed of 600 rpm can be advantageous for a loading quantity of 6 kg and a drum speed of 800 rpm for a loading quantity of 8 kg.
- the relationship between the load quantity and a drum speed to be set can be stored in the form of a look-up table in the control unit of the cleaning device or in the form of a mathematical equation.
- the drain pump is switched off so that no more water is removed from the tub.
- the washing drum is accelerated further, which is shown by the course of the drum speed in Figure 2 is shown.
- the alkali level is continuously monitored. If the alkali level exceeds a specified value, in this example 15 millimeters of water, here at a seventh point in time t7, as with the help of Figure 4 shown, the acceleration process is stopped and the drum runs down until the drum speed has reached the value 0. This is through the course the characteristic in Figure 2 shown.
- the fill level with the value of 15 millimeters of water at the seventh time t7 is a few millimeters above the heating element arranged in the suds container of the cleaning device, so that it is completely covered.
- the heating element for example a tubular heater, can now be switched on at an eighth time t8, as can be seen from FIG Figure 5 shown. If the washing liquor in the vicinity of the tubular heating element has warmed up sufficiently, water vapor is formed which condenses on the drum and on the laundry, so that it is heated. The heating process continues until a desired laundry temperature is reached. This laundry temperature can be so high, for example, that pathogenic germs are killed. The heating energy required for this is used efficiently because the amount of water to be heated was set to a low value in the manner described before the heating step.
- the duration of the first phase of the cleaning process, washing in the saturated state, and the second phase of the cleaning process, setting a low saturation with subsequent heating step can vary from a few minutes to a few hours and can be combined with one another as desired.
- FIG. 6 shows a flow diagram of a method 600 for operating a cleaning device according to an exemplary embodiment.
- the cleaning device comprises a tub for holding a washing liquor and a drum for holding items to be cleaned.
- the method comprises at least a step 605 of performing a first phase of a cleaning process and a step 610 of executing a second phase of the cleaning process.
- the first phase of the cleaning process is carried out with a wash liquor.
- the items to be cleaned are completely saturated with wash liquor.
- step 610 of performing the second phase of the cleaning process the wash liquor is reduced by a proportion.
- the items to be cleaned are partially saturated with wash liquor in the second phase.
- in the step of executing the wash liquor is heated depending on a level of the wash liquor in the tub to generate water vapor from the wash liquor for heating the items to be cleaned.
- an embodiment includes a "and / or" link between a first feature and a second feature, it should be read in such a way that the embodiment according to one embodiment includes both the first feature and the second feature and according to a further embodiment either only that has the first feature or only the second feature.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zum Betreiben eines Reinigungsgeräts (100), welches einen Laugenbehälter (110) und eine Trommel (115) aufweist. Das Verfahren weist zumindest einen Schritt des Durchführens einer ersten Phase eines Reinigungsvorgangs und einen Schritt des Ausführens einer zweiten Phase des Reinigungsvorgangs auf. Im Schritt des Durchführens wird die erste Phase des Reinigungsvorgangs mit einer Waschflotte durchgeführt. Das Reinigungsgut (120) ist in der ersten Phase vollständig mit Waschflotte gesättigt. Im Schritt des Ausführens wird die zweite Phase des Reinigungsvorgangs ausgeführt. Dabei wird die Waschflotte um einen Anteil reduziert. Das Reinigungsgut (120) ist in der zweiten Phase teilweise mit Waschflotte gesättigt. Abhängig von einem Füllstand (150, 155, 160) der Waschflotte in dem Laugenbehälter (110) wird die Waschflotte erwärmt, um aus der Waschflotte Wasserdampf zum Erwärmen des Reinigungsguts (120) zu erzeugen. The invention relates to a method for operating a cleaning device (100), which has a tub (110) and a drum (115). The method has at least one step of carrying out a first phase of a cleaning process and one step of carrying out a second phase of the cleaning process. In the performing step, the first phase of the cleaning process is carried out with a wash liquor. The items to be cleaned (120) are completely saturated with wash liquor in the first phase. In the execution step, the second phase of the cleaning process is carried out. The wash liquor is reduced by a proportion. The items to be cleaned (120) are partially saturated with wash liquor in the second phase. Depending on a fill level (150, 155, 160) of the wash liquor in the tub (110), the wash liquor is heated in order to generate water vapor from the wash liquor for heating the items to be cleaned (120).
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Betreiben eines Reinigungsgeräts und ein Reinigungsgerät.The invention relates to a method and a device for operating a cleaning device and a cleaning device.
Um eine erforderliche Heizenergie zum Reinigen eines Reinigungsguts zu reduzieren, ist es möglich, eine Waschflotte, und damit eine zu erwärmende Wassermenge, im Reinigungsprozess zu reduzieren. Zudem kann ein Reinigungsgut durch Dampfheizen erwärmt werden.In order to reduce the heating energy required for cleaning items to be cleaned, it is possible to reduce a wash liquor, and thus a quantity of water to be heated, in the cleaning process. In addition, items to be cleaned can be heated by steam heating.
Der Erfindung stellt sich die Aufgabe, ein verbessertes Verfahren und eine verbesserte Vorrichtung zum Betreiben eines Reinigungsgeräts und ein verbessertes Reinigungsgerät zu schaffen.The object of the invention is to provide an improved method and an improved device for operating a cleaning device and an improved cleaning device.
Erfindungsgemäß wird diese Aufgabe durch ein Verfahren und eine Vorrichtung zum Betreiben eines Reinigungsgeräts und ein Reinigungsgerät mit den Schritten bzw. Merkmalen der Hauptansprüche gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this object is achieved by a method and a device for operating a cleaning device and a cleaning device with the steps or features of the main claims. Advantageous refinements and developments of the invention result from the following subclaims.
Die mit der Erfindung erreichbaren Vorteile bestehen darin, dass ein Reinigungsvorgang in Phasen unterteilt werden kann, in denen mittels der Menge der Waschflotte ein jeweils unterschiedlicher Sättigungszustand der Wäsche eingestellt werden kann. Dabei kann vorteilhafterweise in der ersten Phase bei einer vollständigen Sättigung des Reinigungsguts mit Waschflotte eine effiziente mechanische Waschwirkung erreicht werden und in der zweiten Phase kann ein Erreichen einer Wäschetemperatur für eine bessere Hygiene bei wenig Energieeinsatz durch eine reduzierte Waschflotte erreicht werden, was vorteilhafterweise energiesparend ist.The advantages that can be achieved with the invention are that a cleaning process can be divided into phases in which a different saturation state of the laundry can be set by means of the amount of washing liquor. In this case, an efficient mechanical washing action can advantageously be achieved in the first phase when the items to be cleaned are completely saturated with washing liquor, and in the second phase a reduced washing liquor can be used to achieve a washing temperature for better hygiene with little use of energy, which is advantageously energy-saving.
Auch wenn der beschriebene Ansatz anhand eines Haushaltgeräts beschrieben wird, kann der hier beschriebene Ansatz entsprechend im Zusammenhang mit einem gewerblichen oder professionellen Gerät, beispielsweise einem medizinischen Gerät, wie einem Reinigungs- oder Desinfektionsgerät, einem Kleinsterilisator, einem Großraumdesinfektor oder einer Container-Waschanlage eingesetzt werden.Even if the approach described is described using a household appliance, the approach described here can be used accordingly in connection with a commercial or professional device, for example a medical device, such as a cleaning or disinfection device, a small sterilizer, a large-scale disinfector or a container washing system .
Es wird ein Verfahren zum Betreiben eines Reinigungsgeräts vorgestellt. Das Reinigungsgerät umfasst einen Laugenbehälter zum Aufnehmen einer Waschflotte und einer Trommel zum Aufnehmen von Reinigungsgut. Das Verfahren weist einen Schritt des Durchführens einer ersten Phase eines Reinigungsvorgangs und einen Schritt des Ausführens einer zweiten Phase des Reinigungsvorgangs auf. Im Schritt des Durchführens wird die erste Phase des Reinigungsvorgangs mit einer Waschflotte durchgeführt. In der ersten Phase ist das Reinigungsgut vollständig mit Waschflotte gesättigt. Im Schritt des Ausführens der zweiten Phase des Reinigungsvorgangs wird die Waschflotte um einen Anteil reduziert. Das Reinigungsgut ist in der zweiten Phase teilweise mit Waschflotte gesättigt. Zudem wird im Schritt des Ausführens die Waschflotte abhängig von einem Füllstand der Waschflotte in dem Laugenbehälter erwärmt, um aus der Waschflotte Wasserdampf zum Erwärmen des Reinigungsguts zu erzeugen.A method for operating a cleaning device is presented. The cleaning device comprises a tub for holding a washing liquor and a drum for holding items to be cleaned. The method has a step of performing a first phase of a cleaning process and a step of Perform a second phase of the cleaning process. In the performing step, the first phase of the cleaning process is carried out with a wash liquor. In the first phase, the items to be cleaned are completely saturated with wash liquor. In the step of performing the second phase of the cleaning process, the wash liquor is reduced by a proportion. The items to be cleaned are partially saturated with wash liquor in the second phase. In addition, in the step of executing the wash liquor is heated depending on a level of the wash liquor in the tub to generate water vapor from the wash liquor for heating the items to be cleaned.
Bei dem Reinigungsgerät kann es sich beispielsweise um eine Waschmaschine oder um einen Waschtrockner handeln, oder um ein kombiniertes Waschtrockengerät. In dem Laugenbehälter kann die Trommel drehbar angeordnet sein. Der Laugenbehälter kann beispielsweise aus Edelstahl oder Kunststoff gefertigt sein. Unter der Waschflotte kann die Menge an Flüssigkeit verstanden werden, die während eines Reinigungsvorgangs verwendet wird. Das Reinigungsgut kann beispielsweise Wäsche sein. Die Waschflotte kann beispielsweise aus Leitungswasser mit oder ohne Waschmittel bestehen. Bei dem Reinigungsvorgang kann es sich beispielsweise um ein vordefiniertes Waschprogramm des Reinigungsgeräts handeln. Der Reinigungsvorgang kann auch nur einen Teilablauf des Waschprogramms umfassen, beispielsweise die Hauptwäsche oder das Spülen des Reinigungsguts. Die Waschflotte kann beispielsweise um einen Anteil von 25 bis 35 Prozent reduziert werden. In der ersten Phase kann das Reinigungsgut beispielsweise einen Sättigungswert von 100 Prozent Sättigung mit der Waschflotte aufweisen, und in der zweiten Phase kann das Reinigungsgut beispielsweise einen Sättigungswert von 70 Prozent Sättigung mit der Waschflotte aufweisen. Unter einer vollständigen Sättigung des Reinigungsguts mit Waschflotte kann beispielsweise ein Sättigungszustand verstanden werden, in dem bei einer Drehbewegung der Trommel des Reinigungsgeräts bei einer vordefinierten Drehzahl keine Flüssigkeit aus dem Reinigungsgut abtropft. Bei dem Füllstand kann es sich beispielsweise um eine vordefinierte Höhe von Waschflotte in dem Laugenbehälter handeln. Der Wasserdampf kann beispielsweise an der Trommel und an dem Reinigungsgut kondensieren, um das Reinigungsgut zu erwärmen.The cleaning device can be, for example, a washing machine or a washer-dryer, or a combined washer-dryer. The drum can be rotatably arranged in the tub. The tub can be made of stainless steel or plastic, for example. The washing liquor can be understood as the amount of liquid that is used during a cleaning process. The items to be cleaned can be laundry, for example. The washing liquor can consist, for example, of tap water with or without detergent. The cleaning process can be, for example, a predefined washing program of the cleaning device. The cleaning process can also include only a partial sequence of the washing program, for example the main wash or the rinsing of the items to be cleaned. For example, the wash liquor can be reduced by 25 to 35 percent. In the first phase, the items to be cleaned can have, for example, a saturation value of 100 percent saturation with the wash liquor, and in the second phase, the items to be cleaned can have, for example, a saturation value of 70 percent saturation with the wash liquor. Complete saturation of the items to be cleaned with washing liquor can be understood to mean, for example, a saturation state in which no liquid drips from the items to be cleaned when the drum of the cleaning device rotates at a predefined speed. The fill level can be, for example, a predefined height of wash liquor in the tub. The water vapor can, for example, condense on the drum and on the items to be cleaned in order to heat the items to be cleaned.
Gemäß einer Ausführungsform kann im Schritt des Ausführens zum Erwärmen der Waschflotte ein in dem Laugenbehälter angeordnetes und von der Waschflotte abhängig vom Füllstand umspülbares Heizelement angesteuert werden. Das Heizelement kann beispielsweise als Rohrheizkörper ausgeführt sein. Zum Erwärmen der Waschflotte kann das Heizelement vollständig von der Waschflotte umspült sein. Das Reinigungsgut kann dadurch vorteilhafterweise besonders effizient und damit energiesparend erwärmt werden.According to one embodiment, in the execution step for heating the washing liquor, a heating element which is arranged in the tub and can be flushed by the washing liquor as a function of the fill level can be controlled. The heating element can for example be designed as a tubular heater. To heat the wash liquor, the heating element can be completely washed around the wash liquor. The items to be cleaned can advantageously be heated particularly efficiently and thus in an energy-saving manner.
Im Schritt des Ausführens kann gemäß einer Ausführungsform das Erwärmen der Waschflotte beendet werden, wenn eine Zieltemperatur des Reinigungsguts erreicht ist. Die Zieltemperatur kann beispielsweise je nach Reinigungsvorgang oder Reinigungsgut vordefiniert sein. Zudem kann die Zieltemperatur so hoch eingestellt sein, dass beim Erwärmen des Reinigungsguts Keime abgetötet werden, was vorteilhafterweise die Hygienewirkung des Reinigungsvorgangs erhöht.In the execution step, according to one embodiment, the heating of the washing liquor can be ended when a target temperature of the items to be cleaned is reached. The target temperature can be predefined, for example, depending on the cleaning process or items to be cleaned. In addition, the target temperature can be set so high that germs are killed when the items to be cleaned are heated, which advantageously increases the hygiene effect of the cleaning process.
Auch kann im Schritt des Ausführens gemäß einer Ausführungsform der Füllstand der Waschflotte in dem Laugenbehälter mittels eines Drucksensors des Reinigungsgeräts überwacht werden. Bei dem Drucksensor kann es sich beispielsweise um einen analogen Drucksensor handeln, der so angeordnet ist, dass er den Füllstand der Waschflotte in dem Laugenbehälter erfassen kann, beispielsweise in dem Laugenbehälter und außerhalb der Trommel. Diese Ausführungsform erlaubt vorteilhafterweise eine kostengünstige Realisierbarkeit der Überwachung des Füllstands.According to one embodiment, the filling level of the wash liquor in the tub can also be monitored in the execution step by means of a pressure sensor of the cleaning device. The pressure sensor can be an analog pressure sensor, for example, which is arranged such that it can detect the fill level of the wash liquor in the tub, for example in the tub and outside the drum. This embodiment advantageously allows the fill level to be monitored cost-effectively.
Im Schritt des Durchführens kann gemäß einer Ausführungsform die Waschflotte eingeleitet werden. Die Waschflotte kann unerwärmtes Leitungswasser umfassen. Zudem kann im Schritt des Durchführens ein Erwärmen der Waschflotte unterbleiben. Die eingeleitete Waschflotte kann dadurch beispielsweise kälter sein als eine Temperatur in dem Raum, in dem das Reinigungsgerät aufgestellt ist. Dies ist energetisch vorteilhaft, da die Waschflotte dadurch Energie aufnehmen kann, ohne dass dafür Heizenergie zum Erwärmen der Waschflotte aufgewendet zu werden braucht.According to one embodiment, the washing liquor can be introduced in the performing step. The wash liquor can include unheated tap water. In addition, the washing liquor may not be heated in the step of carrying out. The washing liquor introduced can thereby be colder than a temperature in the room in which the cleaning device is installed, for example. This is energetically advantageous since the washing liquor can absorb energy without the need to use heating energy to heat the washing liquor.
Zudem kann im Schritt des Ausführens gemäß einer Ausführungsform zum Reduzieren der Waschflotte die in dem Laugenbehälter befindliche Waschflotte abgepumpt werden. Das Abpumpen kann zumindest während des Bewirkens einer Drehbewegung der Trommel mit einer Austreibdrehzahl erfolgen, um dem Reinigungsgut Waschflotte zu entziehen. Die Austreibdrehzahl kann vordefiniert sein, beispielsweise je nach Reinigungsvorgang, oder je nachdem, welche Phase des Reinigungsvorgangs erfolgt. Die Drehbewegung der Trommel mit der Austreibdrehzahl kann auch zeitgesteuert erfolgen. Das Abpumpen kann auch abhängig vom Füllstand erfolgen. Vorteilhafterweise kann die Waschflotte auf diese Weise vor dem Erwärmen besonders einfach, genau und zuverlässig reduziert werden, um das Reinigungsgut energiesparend zu erwärmen.In addition, in the execution step according to one embodiment, the washing liquor located in the tub can be pumped out to reduce the washing liquor. The pumping can take place at least during the effect of a rotary movement of the drum at an expulsion speed in order to remove washing liquor from the items to be cleaned. The expulsion speed can be predefined, for example depending on the cleaning process, or depending on which phase of the cleaning process takes place. The rotation of the drum with the expulsion speed can also be time-controlled. Pumping can also take place depending on the level. In this way, the washing liquor can advantageously be reduced in a particularly simple, precise and reliable manner before heating in order to heat the items to be cleaned in an energy-saving manner.
Ferner kann im Schritt des Durchführens gemäß einer Ausführungsform eine Beladungsmenge der Trommel erfasst werden. In diesem Fall kann im Schritt des Ausführens die Austreibdrehzahl abhängig von der Beladungsmenge eingestellt werden. Die Beladungsmenge kann beispielsweise mittels eines Wiegeverfahrens oder eines Massenträgheitsverfahrens erfasst werden. Vorteilhafterweise kann die Drehbewegung der Trommel somit abhängig von der Beladungsmenge bewirkt werden, was energieeffizient ist.Furthermore, according to one embodiment, a loading amount of the drum can be detected in the performing step. In this case, the expulsion speed can be set depending on the load quantity in the execution step. The loading quantity can be recorded, for example, by means of a weighing method or a mass inertia method. Advantageously, the rotary movement of the drum can thus be effected depending on the amount of loading, which is energy efficient.
Der hier vorgestellte Ansatz schafft ferner eine Vorrichtung, die ausgebildet ist, um die Schritte einer Variante eines hier vorgestellten Verfahrens in entsprechenden Einrichtungen durchzuführen, anzusteuern bzw. umzusetzen. Auch durch diese Ausführungsvariante der Erfindung in Form einer Vorrichtung kann die der Erfindung zugrunde liegende Aufgabe schnell und effizient gelöst werden.The approach presented here also creates a device which is designed to carry out, control or implement the steps of a variant of a method presented here in corresponding devices. This embodiment variant of the invention in the form of a device can also be used to quickly and efficiently achieve the object on which the invention is based.
Die Vorrichtung kann ausgebildet sein, um Eingangssignale einzulesen und unter Verwendung der Eingangssignale Ausgangssignale zu bestimmen und bereitzustellen. Ein Eingangssignal kann beispielsweise ein über eine Eingangsschnittstelle der Vorrichtung einlesbares Sensorsignal darstellen. Ein Ausgangssignal kann ein Steuersignal oder ein Datensignal darstellen, das an einer Ausgangsschnittstelle der Vorrichtung bereitgestellt werden kann. Die Vorrichtung kann ausgebildet sein, um die Ausgangssignale unter Verwendung einer in Hardware oder Software umgesetzten Verarbeitungsvorschrift zu bestimmen. Beispielsweise kann die Vorrichtung dazu eine Logikschaltung, einen integrierten Schaltkreis oder ein Softwaremodul umfassen und beispielsweise als ein diskretes Bauelement realisiert sein oder von einem diskreten Bauelement umfasst sein.The device can be designed to read input signals and to determine and provide output signals using the input signals. An input signal can represent, for example, a sensor signal that can be read in via an input interface of the device. An output signal can represent a control signal or a data signal that can be provided at an output interface of the device. The device can be designed to determine the output signals using a processing rule implemented in hardware or software. For example, for this purpose the device can comprise a logic circuit, an integrated circuit or a software module and can be implemented, for example, as a discrete component or can be comprised by a discrete component.
Mit diesem Ansatz wird zudem ein Reinigungsgerät vorgestellt. Das Reinigungsgerät umfasst einen Laugenbehälter zum Beinhalten einer Waschflotte und einer Trommel zum Aufnehmen von Reinigungsgut und eine Ausführungsform der vorstehend genannten Vorrichtung.This approach also introduces a cleaning device. The cleaning device comprises a tub for containing a washing liquor and a drum for holding items to be cleaned and an embodiment of the above-mentioned device.
Von Vorteil ist auch ein Computer-Programmprodukt oder Computerprogramm mit Programmcode, der auf einem maschinenlesbaren Träger oder Speichermedium wie einem Halbleiterspeicher, einem Festplattenspeicher oder einem optischen Speicher gespeichert sein kann. Wird das Programmprodukt oder Programm auf einem Computer oder einer Vorrichtung ausgeführt, so kann das Programmprodukt oder Programm zur Durchführung, Umsetzung und/oder Ansteuerung der Schritte des Verfahrens nach einer der vorstehend beschriebenen Ausführungsformen verwendet werden.A computer program product or computer program with program code, which can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory, is also advantageous. If the program product or program is executed on a computer or a device, the program product or program can be used to carry out, implement and / or control the steps of the method according to one of the embodiments described above.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt
Figur 1- eine schematische Darstellung eines Reinigungsgeräts mit einer Vorrichtung zum Betreiben des Reinigungsgeräts gemäß einem Ausführungsbeispiel;
- Figur 2
- eine Kennlinie bezüglich einer Drehzahl einer Trommel eines Reinigungsgeräts gemäß einem Ausführungsbeispiel;
- Figur 3
- eine Kennlinie bezüglich eines Schaltzustands einer Laugenpumpe eines Reinigungsgeräts gemäß einem Ausführungsbeispiel;
- Figur 4
- eine Kennlinie bezüglich eines Füllstands einer Waschflotte in einem Laugenbehälter eines Reinigungsgeräts gemäß einem Ausführungsbeispiel;
Figur 5- eine Kennlinie bezüglich eines Schaltzustands eines Heizelements eines Reinigungsgeräts gemäß einem Ausführungsbeispiel; und
- Figur 6
- ein Ablaufdiagramm eines Verfahrens zum Betreiben eines Reinigungsgeräts gemäß einem Ausführungsbeispiel.
- Figure 1
- a schematic representation of a cleaning device with a device for operating the cleaning device according to an embodiment;
- Figure 2
- a characteristic curve with respect to a speed of a drum of a cleaning device according to an embodiment;
- Figure 3
- a characteristic curve with respect to a switching state of a drain pump of a cleaning device according to an embodiment;
- Figure 4
- a characteristic curve with respect to a fill level of a wash liquor in a tub of a cleaning device according to an embodiment;
- Figure 5
- a characteristic curve with respect to a switching state of a heating element of a cleaning device according to an embodiment; and
- Figure 6
- a flowchart of a method for operating a cleaning device according to an embodiment.
In der nachfolgenden Beschreibung günstiger Ausführungsbeispiele des vorliegenden Ansatzes werden für die in den verschiedenen Figuren dargestellten und ähnlich wirkenden Elemente gleiche oder ähnliche Bezugszeichen verwendet, wobei auf eine wiederholte Beschreibung dieser Elemente verzichtet wird.In the following description of favorable exemplary embodiments of the present approach, the same or similar reference numerals are used for the elements shown in the different figures and acting in a similar manner, a repeated description of these elements being dispensed with.
Die Vorrichtung 105 ist signalübertragungsfähig mit der Laugenpumpe 130, der Umflutungspumpe 135, dem Heizelement 140 und dem Drucksensor 145 verbunden. Die Vorrichtung 105 zum Betreiben des Reinigungsgeräts kann als Steuergerät des Reinigungsgeräts 100 oder Teil des Steuergeräts ausgeführt sein. Die Vorrichtung 105 ist ausgebildet, einen Reinigungsvorgang in dem Reinigungsgerät 100 zu steuern. Dazu ist die Vorrichtung 105 ausgebildet, ein Durchführen einer ersten Phase des Reinigungsvorgangs mit einer Waschflotte zu steuern, wobei das Reinigungsgut in der ersten Phase vollständig mit Waschflotte gesättigt ist. Zudem ist die Vorrichtung 105 ausgebildet, ein Ausführen einer zweiten Phase des Reinigungsvorgangs zu steuern. In der zweiten Phase des Reinigungsvorgangs wird die Waschflotte um einen Anteil reduziert. Das Reinigungsgut 120 ist in der zweiten Phase teilweise mit Waschflotte gesättigt. Die Vorrichtung 105 ist auch ausgebildet, abhängig von einem Füllstand der Waschflotte in dem Laugenbehälter 110 ein Erwärmen der Waschflotte anzusteuern, um aus der Waschflotte Wasserdampf zum Erwärmen des Reinigungsguts 120 zu erzeugen.The
In der zweiten Phase des Reinigungsvorgangs kann die Waschflotte beispielsweise so reduziert werden, dass das Reinigungsgut 120 einen Sättigungswert von 70 Prozent aufweist, wenn das Reinigungsgut 120 erwärmt wird. Ein im Vergleich zur ersten Phase des Reinigungsvorgangs niedrigerer Sättigungswert des Reinigungsguts 120 von beispielsweise 70 Prozent ist vorteilhaft, um möglichst wenig Heizenergie einzusetzen, um die gewünschte Zieltemperatur des Reinigungsguts 120 zu erzielen. Ein Behandeln des Reinigungsguts 120 mit einer größeren Waschflotte wie während der ersten Phase des Reinigungsvorgangs ist hingegen vorteilhaft, um eine gute mechanische Reinigungswirkung des Reinigungsguts 120 zu erzielen. Mittels der ersten und der zweiten Phase des Reinigungsvorgangs sind beide Vorteile vereinbar, sodass einerseits eine gute mechanische Waschwirkung des Reinigungsguts 120 in der ersten Phase erzielt wird, und andererseits eine erforderliche Heizenergie für das Erreichen einer gewünschten Wäschetemperatur mit guter hygienischer Wirkung und aktivierter thermischer Waschwirkung des Reinigungsguts 120 in der zweiten Phase geringer ist als bei einer höheren Menge an Waschflotte, wie sie in der ersten Phase vorhanden ist. Dazu wird die Hauptwäsche in Phasen unterteilt, in denen der jeweils notwendige unterschiedliche Sättigungszustand der Wäsche eingestellt wird.In the second phase of the cleaning process, the washing liquor can be reduced, for example, so that the items to be cleaned 120 have a saturation value of 70 percent when the items to be cleaned 120 are heated. A lower saturation value of the items to be cleaned 120, for example 70 percent, compared to the first phase of the cleaning process is advantageous in order to use as little heating energy as possible in order to achieve the desired target temperature of the items to be cleaned 120. However, treating the items to be cleaned 120 with a larger wash liquor as during the first phase of the cleaning process is advantageous in order to achieve a good mechanical cleaning action of the items to be cleaned 120. By means of the first and the second phase of the cleaning process, both advantages can be reconciled, so that on the one hand a good mechanical washing effect of the items to be cleaned 120 is achieved in the first phase, and on the other hand a heating energy required to achieve a desired laundry temperature with a good hygienic effect and activated thermal washing effect of the
Gemäß einem Ausführungsbeispiel ist die Vorrichtung 105 zudem ausgebildet, das in dem Laugenbehälter 110 angeordnete und von der Waschflotte abhängig vom Füllstand umspülbare Heizelement 140 anzusteuern. Wenn das Heizelement 140 in der zweiten Phase des Reinigungsvorgangs bei einer bestimmten Sättigung des Reinigungsguts 120 beispielsweise vollständig von der Waschflotte umspült ist, kann das Heizelement 140 aktiviert werden, um die Waschflotte zu erhitzen, um den Wasserdampf zum Erhitzen des Reinigungsguts 120 zu erzeugen.According to one exemplary embodiment, the
Zudem ist die Vorrichtung 105 gemäß einem Ausführungsbeispiel dazu ausgebildet, das Erwärmen der Waschflotte zu beenden, wenn eine Zieltemperatur des Reinigungsguts 120 erreicht ist. Die Zieltemperatur kann dem Reinigungsvorgang entsprechend vordefiniert sein, oder mittels einer Eingabeeinrichtung des Reinigungsgeräts 100 eingebbar sein.In addition, according to one exemplary embodiment, the
Der Füllstand der Waschflotte in dem Laugenbehälter 110 wird gemäß einem Ausführungsbeispiel mittels des Drucksensors 145 überwacht. Dazu kann der Drucksensor 145 ausgebildet sein, den erfassten Füllstand in Form eines elektrischen Signals an die Vorrichtung 105 bereitzustellen. Die Füllhöhe im Laugenbehälter 110 wird durch den Drucksensor 145, der als analoger Drucksensor ausgeführt sein kann, ermittelt. Der Drucksensor 145 ist hier beispielhaft so angeordnet, dass Füllstände ab einer Höhe, die hier durch einen minimalen Füllstand 150 markiert ist, erfasst werden können. Das Bezugszeichen 155 markiert einen höheren Füllstand von 15 Millimeter Wassersäule (mmWS). Ein noch höherer Füllstand von 30 Millimeter Wassersäule, hier durch das Bezugszeichen 160 markiert, bedeutet eine Füllhöhe von 30 mm oberhalb von dem minimalen Füllstand 150. Oberhalb des Drucksensors 145 und unterhalb der Unterkante der Trommel 115 ist hier beispielhaft das Heizelement 140, z. B. ein Rohrheizkörper, angeordnet, mit dem die Waschflotte erwärmt werden kann. Alternativ kann das Heizelement 140 auch als Dampferzeuger, als Strahlungsheizkörper, als induktives Heizelement, als Heizgebläse oder als Wärmepumpe ausgeführt sein.The fill level of the wash liquor in the
Ferner ist die Vorrichtung 105 gemäß einem Ausführungsbeispiel dazu ausgebildet, ein Einleiten der Waschflotte anzusteuern, wobei die Waschflotte unerwärmtes Leitungswasser umfasst und wobei ein Erwärmen der Waschflotte in der ersten Phase des Reinigungsvorgangs unterbleibt.Furthermore, according to one exemplary embodiment, the
Außerdem ist die Vorrichtung 105 gemäß einem Ausführungsbeispiel dazu ausgebildet, zum Reduzieren der Waschflotte die Laugenpumpe 130 anzusteuern, wobei die Laugenpumpe 130 dazu ausgebildet ist, die in dem Laugenbehälter 110 befindliche Waschflotte abzupumpen. Die Vorrichtung 105 ist in diesem Fall auch dazu ausgebildet, zur gleichen Zeit eine Drehbewegung der Trommel 115 mit einer Austreibdrehzahl zu bewirken, um dem Reinigungsgut 120 Waschflotte zu entziehen.In addition, according to one exemplary embodiment, the
Gemäß einem Ausführungsbeispiel ist die Vorrichtung 105 zudem ausgebildet, eine Beladungsmenge der Trommel 115 zu erfassen und in der zweiten Phase des Reinigungsvorgangs die Austreibdrehzahl abhängig von der Beladungsmenge einzustellen. Die Beladungsmenge kann mittels eines Beladungssensors erfasst werden. Zudem kann die Beladungsmenge vor oder während der ersten Phase des Reinigungsvorgangs erfasst werden. Somit kann auch die für das Erwärmen des Reinigungsguts vorteilhafte geringere Feuchte des Reinigungsguts 120, also eine niedrigere Sättigung als in der ersten Phase, beladungsmengenabhängig durch einen intelligenten Entfeuchtungsprozess eingestellt werden.According to one exemplary embodiment, the
Im Folgenden wird beispielhaft ein Ablauf des Reinigungsvorgangs mit der ersten und der zweiten Phase beschrieben. Die erste Phase des Reinigungsvorgangs beginnt mit der Bestimmung der Beladungsmenge der Trommel 115. Das Bestimmen der Beladungsmenge kann durch ein Wiegeverfahren mittels eines Beladungssensors oder ein Verfahren zur Bestimmung des Massenträgheitsmomentes erfolgen. Daran schließt sich eine Wassereinlaufphase zum Einleiten der Waschflotte an, um einen gewünschten Sättigungszustand des Reinigungsguts 120 einzustellen. Die dafür notwendige Wassermenge ist je nach Art des Reinigungsguts 120, beispielsweise je nach Textilart, unterschiedlich. So existieren Textilien, die im Sättigungszustand pro Kilogramm Textil eine Wassermenge von 1,5 Liter aufnehmen können, ohne dass bei einer Drehbewegung der Trommel 115 Wasser abtropft. Extrem saugfähige Textilien können jedoch auch pro Kilogramm Textil ca. 4 Liter Wasser aufnehmen, ohne dass Wasser abtropft. Der Zustand, bei dem bei einer Drehbewegung der Trommel 115 keine Flüssigkeit aus dem Reinigungsgut 120 abtropft, kann als Vollsättigung oder auch 100 Prozent Sättigung bezeichnet werden, das Reinigungsgut 120 ist dann vollständig gesättigt.A sequence of the cleaning process with the first and the second phase is described below as an example. The first phase of the cleaning process begins with the determination of the load quantity of the
In der ersten Phase des Reinigungsvorgangs des hier vorgestellten Ansatzes wird das Reinigungsgut 120 im Vollsättigungszustand gewaschen. Dieser Sättigungszustand ist energetisch optimal, um bei der eingesetzten mechanischen Energie für das Drehen der Trommel 115 eine möglichst hohe Waschwirkung zu erzielen. Energetisch vorteilhaft in dieser Phase ist es zusätzlich, wenn die Temperatur des zulaufenden Wassers gemäß einem Ausführungsbeispiel niedriger ist als die Temperatur in dem Raum, in dem das Reinigungsgerät 100 aufgestellt ist. Dadurch nimmt das Wasser Energie auf, ohne dass dafür Heizenergie für ein Beheizen der Waschflotte aufgewendet zu werden braucht. Die Waschphase mit 100 Prozent Sättigung ist vorteilhaft, um groben Schmutz und größere Partikel aus dem Reinigungsgut 120 zu lösen. Die beschriebene Phase endet, wenn durch eine Zeitsteuerung bestimmt ist, dass eine gewünschte Reinigungswirkung des Reinigungsguts 120 erreicht ist. In der zweiten Phase des Reinigungsvorgangs des hier vorgestellten Ansatzes wird nun ein Zustand mit reduzierter Sättigung eingestellt. Dies hat das Ziel, die zu erwärmende Wassermenge der Waschflotte zu verringern, damit mit möglichst geringer Heizenergiemenge eine gewünschte Temperatur des Reinigungsguts 120 erreicht werden kann. Die gewünschte Zieltemperatur kann besonders für eine gute hygienische Waschleistung eingestellt werden, zusätzlich können Waschmittelbestandteile wie bleichende Inhaltsstoffe in der Waschflotte durch das Erhitzen thermisch aktiviert werden, die erst bei der gewünschten Zieltemperatur ihre volle Wirkung entfalten.In the first phase of the cleaning process of the batch presented here, the items to be cleaned 120 are washed in the fully saturated state. This state of saturation is optimal in terms of energy in order to achieve the highest possible washing effect with the mechanical energy used for rotating the
In den
Die
Zu einem ersten Zeitpunkt t1 wird, wie in
Zu einem fünften Zeitpunkt t5 wird, wie in
Das Heizelement, beispielsweise ein Rohrheizkörper, kann nun zu einem achten Zeitpunkt t8 eingeschaltet werden, wie anhand von
Umfasst ein Ausführungsbeispiel eine "und/oder"-Verknüpfung zwischen einem ersten Merkmal und einem zweiten Merkmal, so ist dies so zu lesen, dass das Ausführungsbeispiel gemäß einer Ausführungsform sowohl das erste Merkmal als auch das zweite Merkmal und gemäß einer weiteren Ausführungsform entweder nur das erste Merkmal oder nur das zweite Merkmal aufweist.If an embodiment includes a "and / or" link between a first feature and a second feature, it should be read in such a way that the embodiment according to one embodiment includes both the first feature and the second feature and according to a further embodiment either only that has the first feature or only the second feature.
Claims (10)
Applications Claiming Priority (1)
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DE102018122462.1A DE102018122462A1 (en) | 2018-09-14 | 2018-09-14 | Method and device for operating a cleaning device and cleaning device |
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EP3623519A1 true EP3623519A1 (en) | 2020-03-18 |
EP3623519B1 EP3623519B1 (en) | 2022-11-30 |
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EP19194020.4A Active EP3623519B1 (en) | 2018-09-14 | 2019-08-28 | Method for operating a cleaning appliance |
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EP (1) | EP3623519B1 (en) |
DE (1) | DE102018122462A1 (en) |
ES (1) | ES2933200T3 (en) |
PL (1) | PL3623519T3 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006129912A1 (en) * | 2005-05-31 | 2006-12-07 | Lg Electronics Inc. | A washing machine generating and using the steam |
US20140208523A1 (en) * | 2013-01-31 | 2014-07-31 | Sunmi Kim | Washing machine and method of controlling same |
EP2957670A1 (en) * | 2014-06-18 | 2015-12-23 | Miele & Cie. KG | Process for washing laundry in a humid condition |
EP2464778B1 (en) * | 2009-08-11 | 2016-09-28 | LG Electronics Inc. | Control method of a laundry machine |
Family Cites Families (3)
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CH695383A5 (en) * | 2001-07-10 | 2006-04-28 | V Zug Ag | Dryer or washing machine with steamer. |
DE102013104075A1 (en) * | 2013-04-23 | 2014-10-23 | Miele & Cie. Kg | Method of operating a washing machine and washing machine |
DE102015119972A1 (en) * | 2015-11-18 | 2017-05-18 | Miele & Cie. Kg | Water supply control |
-
2018
- 2018-09-14 DE DE102018122462.1A patent/DE102018122462A1/en not_active Withdrawn
-
2019
- 2019-08-28 PL PL19194020.4T patent/PL3623519T3/en unknown
- 2019-08-28 ES ES19194020T patent/ES2933200T3/en active Active
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006129912A1 (en) * | 2005-05-31 | 2006-12-07 | Lg Electronics Inc. | A washing machine generating and using the steam |
EP2464778B1 (en) * | 2009-08-11 | 2016-09-28 | LG Electronics Inc. | Control method of a laundry machine |
US20140208523A1 (en) * | 2013-01-31 | 2014-07-31 | Sunmi Kim | Washing machine and method of controlling same |
EP2957670A1 (en) * | 2014-06-18 | 2015-12-23 | Miele & Cie. KG | Process for washing laundry in a humid condition |
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DE102018122462A1 (en) | 2020-03-19 |
ES2933200T3 (en) | 2023-02-02 |
PL3623519T3 (en) | 2023-02-20 |
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