EP2458058B1 - Waschmaschine - Google Patents
Waschmaschine Download PDFInfo
- Publication number
- EP2458058B1 EP2458058B1 EP10192652.5A EP10192652A EP2458058B1 EP 2458058 B1 EP2458058 B1 EP 2458058B1 EP 10192652 A EP10192652 A EP 10192652A EP 2458058 B1 EP2458058 B1 EP 2458058B1
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- EP
- European Patent Office
- Prior art keywords
- washing
- laundry
- weight
- programme
- loaded
- 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.)
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- 238000005406 washing Methods 0.000 title claims description 463
- 238000005303 weighing Methods 0.000 claims description 58
- 239000003599 detergent Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
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- 230000008859 change Effects 0.000 description 4
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- 238000002791 soaking Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010412 laundry washing Methods 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 238000009736 wetting Methods 0.000 description 1
- 210000002268 wool Anatomy 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
-
- 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
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/02—Characteristics of laundry or load
- D06F2101/06—Type or material
-
- 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
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/10—Spin speed
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/14—Time settings
-
- 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
- D06F2103/20—Washing liquid condition, e.g. turbidity
- D06F2103/22—Content of detergent or additives
-
- 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
- D06F2103/38—Time, e.g. duration
-
- 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
- D06F2103/70—Number of operational cycles
-
- 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
- D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
-
- 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
- D06F2105/58—Indications or alarms to the control system or to the user
Definitions
- the present invention relates to a laundry washing machine, known, for instance, from EP-A-1 683 902 .
- washing machine may as well indicate a “simple” washing machine (i.e. a washing machine which can only wash and rinse the laundry) and a washing-drying machine (i.e. a washing machine which can also dry the laundry), both of the front-loading type and of the top-loading type.
- washing machines generally comprise an external casing provided with a loading/unloading door which allows the access to a washing tub containing a rotatable washing drum in which the laundry to be washed can be loaded.
- washing machines are adapted to perform washing cycles comprising one or more phases, for example a soaking phase, a main wash phase (comprising, for example, the adduction into the washing tub of water mixed with detergent and the rotation of the drum, so as to apply a mechanical action on the laundry), a steam supplying phase, a rinsing phase, a spinning phase, etc.
- a main wash phase comprising, for example, the adduction into the washing tub of water mixed with detergent and the rotation of the drum, so as to apply a mechanical action on the laundry
- a steam supplying phase for example, a rinsing phase, a spinning phase, etc.
- These known washing machines comprise also a user interface adapted for allowing a user to set a washing programme to which corresponds a washing cycle to be performed; depending on the specific washing programme set by the user, during a same washing cycle the above mentioned phases of the washing cycle (and/or other phases which have not been mentioned) may be not performed, or performed only once, or also performed two or more times (for example the rinsing phase is typically performed two or more times during a same washing cycle).
- Some known washing machines are also provided with a weight sensing device adapted to sense the weight of the laundry which is loaded in the washing drum.
- GB 2225030 discloses a domestic washing machine comprising a tub suspended resiliently relatively to a mounting frame by a suspension spring.
- a toroidal coil is connected, via a suspension, to the frame of the washing machine; this coil surrounds concentrically the suspension spring.
- a coil core is rigidly secured to the tub, inside the suspension spring or surrounding it concentrically; therefore, as the loading of the washing (i.e. the laundry to be washed) increases, the coil core can move downwards with the tub, vertically in the magnetic field of the energized coil, in accordance with the characteristic of the suspension spring.
- the magnetic flux is altered considerably. This change in the magnetic flux is converted into signals through electronics, and indicates the weight of the washing introduced into the drum at an indicator window via a plurality of light-emitting diodes or directly via a digital display.
- the user may select the washing program and the quantity of detergent which best fits this quantity of laundry.
- This known washing machine isn't adapted to automatically modify the duration of the washing cycle according to the weight of the loaded laundry; for example this known washing machine isn't adapted to automatically reduce the number of rinses in a washing cycle if it detects that the quantity of loaded laundry is small (in which case it would be sufficient a reduced washing/rinsing duration). This fact leads to wastage of energy and time if the quantity of laundry to be washed is small.
- EP 0051491 discloses a washing machine having its drum/drive mechanism and the tub assembly mounted upon transducers which provide an indication of the weight of the mechanism and assembly, and of the weight of articles loaded into the drum for washing.
- the transducers input to a microprocessor which determines the weight of the clothes and also the weight of water required to wash that weight of clothes under program conditions, some at least of which are selected by the user.
- the microprocessor may also control a display which indicates the amount of detergent required.
- the control system of the washing machine is adapted to indicate to the user when the weight of articles loaded into the machine exceeds the maximum weight appropriate to a selected program. It is also disclosed that where a small load of articles is to be dealt with, the control system may be adapted to reduce the number of rinse stages.
- this known washing machine may modify the number of rinses, and therefore the duration of the overall washing cycle, but it isn't adapted to inform the user of this modified duration.
- a known washing machine comprising the feature of calculating the duration of the washing cycle as a function of the sensed weight of the loaded laundry, and of informing a user about this duration is illustrated for example in EP 1029964 ; this document discloses a washing machine, in particular a domestic washing machine, having a control panel in which are disposed a programme selection device for setting a wash programme which is dependent upon the washing type.
- the washing machine is provided with a display device for presenting user information.
- the washing machine comprises a rotatable drum for receiving washing (i.e. the laundry to be washed), and a sensor for detecting the weight of the washing situated in the drum.
- the washing machine comprises also a microprocessor control which calculates state variables and user information dependent upon the weight detected by the sensor, and which actuates the display device with these variables and information.
- the washing machine comprises a first memory, which is integrated into the microprocessor control, for storing first memory values in the form of permissible maximum weights which are associated with each wash programme or respectively with the washing type associated with the wash program.
- This washing machine comprises a second memory for storming second memory values in the form of detergent desired quantities, and also a third memory for storming values in the form of programme running times.
- the second and third memory values are associated respectively with a wash programme or respectively with the washing type associated with the wash programme and with a washing weight.
- the washing machine comprises an evaluation circuit, which is integrated into the microprocessor control, for retrieving the first, second, and third memory values dependent upon the weight of the washing detected by the senor and upon the weight of the washing detected by the senor and upon the set wash programme and for calculating first, second and third display values from the respective memory values.
- the washing machine comprises a display device having a first display part and a second display part. In the first display part the filing level of the drum as first display value, the detergent desired quantity as second display value, and the programme running time as a third display value, are presented in succession. In the second display part, the type of respective display value of the microprocessor control is presented.
- this document discloses a loading procedure wherein, during the loading of the laundry into the drum, the weight of the laundry is detected and is shown in the display; when the door is closed, and therefore the loading procedure is terminated, the display ends showing the weight of the laundry, and starts showing the detergent quantity which is needed for a selected kind of laundry and for the sensed weight of the laundry.
- the wash program starts, and the display starts showing the remaining time (i.e. the time required until the end of the washing cycle); the indicated remaining time becomes down-counted in the course of the wash program.
- this known solution has however a drawback; in fact the user may know the time remaining to the end of the washing cycle only after finishing loading the laundry and closing the door; if the duration of the washing cycle indicated in the display after the closure of the door is different (for example higher) from the duration desired by the user (for example because the user needs removing the laundry from the washing machine by a certain time), in order to modify this duration the user has firstly to open the door, then to modify the amount of laundry loaded into the drum, successively to close again the door, and finally to verify once more the remaining time indicated in the display. The user has to repeat this procedure until reaching the desired value of the remaining time. It is clear that this procedure may result unpleasant, and it also increases the time required to load the washing machine before starting the washing cycle.
- DE 199 46 245 C2 discloses a method for controlling a washing program of a washing machine with an outer tub pivotally suspended or supported on springs, in which an inner drum for accommodating laundry is rotatably mounted and can be actuated by a motor; the washing program is controlled with respect to washing parameters such as water consumption, wash duration, number of rinsing cycles and/or the spinning speed profile and/or with respect to user information which can be displayed by display elements of the washing machine.
- the control is executed subject to a measured laundry weight value determined by a weight sensor on the basis of the weight-related lowering of the outer tub before water is added to the outer tub.
- the method described in this document comprises the following methodological steps: - the program control system determines a subsequent measured value that depends on the type and the weight of the laundry located in the drum; - computation of the actual weight of the laundry on the basis of the measured laundry weight value and the subsequent measured value by a correction circuit integrated in the program control system; - the program control system proceeds with the wash program using washing parameters dependent upon the actual weight of the laundry.
- the subsequent measured value is determined by the program control system on the basis of the suction response after the water has flowed into the outer tub.
- US 4,235,085 discloses an automatic vertical axis washer designed to detect a charged quantity of material of washing, and to carry out the respective steps of washing (including rinsing and dehydration) only for a length of time corresponding to the detected quantity.
- the automatic washer comprises drive means for rotating a stirring blade member or a dehydration tub, and control means connected to the drive means to carry out the respective operation steps of the washer for lengths of time determined by a signal denoting a charged quantity of material which is issued during a washing cycle in accordance with the rotation characteristic of the drive means.
- US 4,553,413 discloses a vertical axis washing machine adapted to detect the washing load size in terms of instantaneous variations in such values as the rpm of the agitator and motor current by making use of the fact that the motor load acts discontinuously and instantaneously owing to the movement of the washing load in the washing machine toward and away from the agitator, the size of the resulting detection signal being utilized to control the washing process, making it possible to properly set the washing bath ratio, detergent concentration, washing time, and agitator drive period.
- FR 2 577 949 A1 discloses a machine for washing and for spin-drying laundry comprising a means for automatically making the spin-drying duration, in the course of the rinsing phase and/or in the course of the final spin-drying, dependent on at least one of the following parameters: the amount of laundry introduced into the drum, the type of this laundry, and the rotational speed of the drum.
- a means is provided for measuring the moment of inertia of the laundry relative to the axis of rotation of the drum; for this measurement, the drive torque of the drum at constant acceleration of the drum is determined.
- the drum before being filled with water, the drum, filled with dry laundry, is made to rotate at constant known acceleration and the (drum drive) motor torque, which is proportional, to within one constant, to the moment of inertia, is measured. It is disclosed that if a universal motor is used to make the drum rotate and if this motor is powered at constant voltage, it is sufficient to measure the intensity of the current passing through the motor - which is a linear function of the motor torque - in order to obtain a linear representation of the moment of inertia.
- EP1683902 discloses a clothes washing or drying machine comprising: means for setting and controlling the operating cycle of the machine, response and user information means, means for processing the commands received from said control and setting means.
- the control and setting means comprise: selection devices associated to specific control variables that can be selected independently from a plurality of different states, and said response means comprise a plurality of user-information display devices, each one of which is adapted to take a respective multiplicity of states, to each one of which there corresponds a particular combination of the states taken by said control variables.
- Each combination of said plurality of distinct states of said control variables is associated to a predetermined set of instructions and programmes residing in said data storage means and adapted to act on respective operating devices of the machine.
- DE8914729 discloses a washing machine comprising means for detecting the weight of the loaded laundry.
- the aim of the present invention is therefore obtaining an improved washing machine which may automatically adapt the duration of the washing cycle to the weight/quantity of the loaded laundry, and which provides the user with an indication of an estimated duration of the washing cycle already before the start of the washing cycle, so as to facilitate the procedure for loading a quantity of laundry suitable to obtain a desired estimated duration of the washing cycle.
- the Applicant has found that by using a washing machine in which information related to the estimated duration and/or number of repetitions of one or more phases of the washing cycle (and therefore also to the estimated duration of the overall washing cycle), depending on the set washing programme and on the weight of the loaded laundry deteteled by a weighing device, is displayed during the loading of the laundry, it very easy to load into the washing machine substantially the quantity of laundry adapted for obtaining a desired estimated duration of the washing cycle.
- the logic unit is operatively connected to the weighing device and to the user interface, and is configured for displaying information related to the duration and/or number of repetitions of one or more phases of the washing cycle via the user interface, the logic unit being configured for adapting the duration and/or number of repetitions of one or more phases of the washing cycle corresponding to a set washing programme to the actual weight and/or quantity of the loaded laundry calculated/detected, during one or more of the washing phases, as a function of the pressure and/or water level in the washing tub, and/or of the washing liquid absorbed by the loaded laundry, and/or of one or more electrical and/or mechanical quantities related to the rotation of the drum or to the electric motor rotating the drum;
- the logic unit is configured for calculating and for displaying via the user interface, during the loading of the laundry into the rotatable drum, information related to the estimated duration and/or number of repetitions of one or more phases of the washing cycle corresponding to a set washing programme and adapted to the weight of the loaded laundry detected by the weighing device.
- the information related to the estimated duration and/or number of repetitions of one or more phases of the washing cycle corresponding to a set washing programme and adapted to the weight of the loaded laundry detected by the weighing device may comprise the estimated duration of the overall washing cycle.
- the information related to the estimated duration and/or number of repetitions of one or more phases of the washing cycle corresponding to a set washing programme and adapted to the weight of the loaded laundry detected by the weighing device may comprise the approximate hour of the day at which the end of the washing cycle is foreseen for the set washing programme and the weight of the laundry loaded into the rotatable drum detected by the weighing device.
- the logic unit may be configured for calculating and for displaying, via the user interface, after the setting of a washing programme and before starting the loading of the laundry into the rotatable drum, the duration of the overall washing cycle which corresponds to the set washing programme and which is suitable for a weight of the laundry lower than a prefixed value.
- the logic unit may be configured for calculating and for displaying, via the user interface, after the setting of a washing programme and before starting the loading of the laundry into the rotatable drum, the duration of the overall washing cycle which corresponds to the set washing programme and which is suitable for the maximum weight of laundry which may be introduced into the rotatable drum for the set washing programme.
- the logic unit may be configured in such a way that after the selection of a washing programme and before starting the loading of the laundry into the rotatable drum, the user interface doesn't represent any information related to the duration of the washing cycle which corresponds to the set washing programme.
- the logic unit may be configured in such a way that, after the setting of a washing programme and before starting the loading of the laundry into the rotatable drum, the logic unit calculates and displays, via the user interface, the duration and/or number of repetitions of one or more phases of the washing cycle which correspond to the set washing programme, and which are suitable as long as the weight of the laundry loaded into the rotatable drum remains below a prefixed value, or which are suitable for the maximum weight of laundry which may be introduced into the rotatable drum for the set washing programme.
- the information related to the estimated number or repetitions of one or more phases of the washing cycle corresponding to a set washing programme and adapted to the weight of the loaded laundry detected by the weighing device may comprise the estimated number of rinses to be performed during the washing cycle.
- the logic unit may be configured in such a way to calculate and to display, via the user interface, the maximum weight of the laundry which may be loaded for a set washing programme.
- the logic unit may be configured in such a way to calculate and to display, via the user interface, during the loading of the laundry, the weight of the loaded laundry detected by the weighing device and/or the loaded percentage of the maximum allowed weight for the set washing programme.
- the user interface may comprise a level indicator adapted to give a visual indication of the loading level of the rotatable drum.
- the logic unit may be configured in such a way to calculate and to display, via the user interface, during and/or after the loading of the laundry, information related to the amount of detergent required for the set washing programme and for the weight of the laundry loaded into the rotatable drum and detected by the weighing device.
- the logic unit may be configured in such a way that the information related to the amount of detergent required for the selected washing programme and for the weight of the laundry loaded into the rotatable drum and detected by the weighing device is displayed in a region of the user interface different from the region of the user interface where the information related to the estimated duration and/or number of repetitions of one or more phases of the washing cycle adapted to the weight of the loaded laundry detected by the weighing device is displayed.
- the logic unit may be configured in such a way that after ending the loading of the laundry into the rotatable drum, the information related to the weight of the loaded laundry disappears form the user interface, and the information related to the amount of detergent required for the selected washing programme and for the weight of the laundry loaded into the rotatable drum is displayed in the same region of the user interface where the information regarding the weight of the laundry was previously displayed.
- the logic unit may be configured in such a way to allow a user to modify the estimated duration and/or number of repetitions of one or more of the phases of the washing cycle even after the loading of the laundry into the rotatable drum, and to calculate and to display, via the user interface, the estimated duration of the overall washing cycle corresponding to this modified estimated duration and/or number of repetitions.
- washing machines 1 according to the invention which are schematically illustrated in the enclosed Figures are advantageously of the front-loading type; it is however clear that the invention is applicable, substantially without any crucial modification, to a top-loading washing machine.
- the invention can be applied, substantially without any modification, both to a "simple" washing machine (i.e. a washing machine which can only wash and rinse the laundry) and to a washing-drying machine (i.e. a washing machine which can also dry the laundry).
- a "simple" washing machine i.e. a washing machine which can only wash and rinse the laundry
- a washing-drying machine i.e. a washing machine which can also dry the laundry.
- the washing machine 1 comprises an external casing 2 in which frontal wall 2a (the frontal wall 2a have not been represented in Figure 1 ) an access opening 3 is obtained, provided with a loading/unloading door 4, which allows the access to a washing tub 5 contained in the external casing 2; the washing tub 5 contains a rotatable perforated drum 6 in which the laundry to be washed, numbered 7 in Figures 4 and 6 , can be loaded and unloaded.
- the washing tub 5 is connected the external casing 2 preferably via a flexible bellows, not represented, connected between the frontal, opened, surface of the washing tub 5 facing the access opening 3, and the border of the latter.
- the washing tub 5 is advantageously elastically supported by the external casing 2 via a suitable resilient support system, comprising, for example, two or more springs 8; preferably the oscillations of the washing tub 5 are damped by suitable shock-absorbing devices or dampers 9, interposed between the washing tub 5 and the bottom of the casing 2.
- a suitable resilient support system comprising, for example, two or more springs 8; preferably the oscillations of the washing tub 5 are damped by suitable shock-absorbing devices or dampers 9, interposed between the washing tub 5 and the bottom of the casing 2.
- washing tub 5 may be associated to the casing 2 in any other suitable way.
- the washing machine 1 comprises a water inlet circuit 10, only partially illustrated in Figure 1 , adapted for feeding water and washing/rinsing products (i.e. detergents, softeners, etc.) into the washing tub 5;
- the water inlet circuit comprises, for example, a removable drawer 10a, adapted to be filled with washing and/or rinsing products, an inlet duct 10b connectable to water delivery mains present outside the washing machine 1 and adapted to deliver fresh water to the drawer 10a, and an outlet duct 10c, fluidly connecting the drawer 10a and the washing tub 5 and adapted to deliver water and washing/rinsing products into the washing tub 5
- the washing machine 1 also comprises a draining circuit 11, only partially represented in Figure 1 , fluidly connected to the bottom of the washing tub 5 and adapted to drain the washing/rinsing liquid from the washing tub 5; in a further embodiment, not illustrated, the draining circuit 11 may be also provided with a recirculation circuit, adapted to drain the washing/rinsing liquid from the bottom of the washing tub 5, and to re-admit such liquid into an upper region of the washing tub 5, for improving the wetting of the laundry.
- a draining circuit 11 only partially represented in Figure 1 , fluidly connected to the bottom of the washing tub 5 and adapted to drain the washing/rinsing liquid from the washing tub 5; in a further embodiment, not illustrated, the draining circuit 11 may be also provided with a recirculation circuit, adapted to drain the washing/rinsing liquid from the bottom of the washing tub 5, and to re-admit such liquid into an upper region of the washing tub 5, for improving the wetting of the laundry.
- the washing machine 1 comprises also some electric and/or electronic components, not illustrated, adapted for performing some specific functions; for example the washing machine may comprise an electric motor for rotating the rotatable drum 6, an electric pump adapted to deliver the washing/rinsing liquid into the washing tub 5, an electric pump adapted to drain and/or to re-circulate the washing/rinsing liquid from the washing tub 5, an electric heater adapted to heat the washing/rinsing liquid, etc.
- the washing machine may comprise an electric motor for rotating the rotatable drum 6, an electric pump adapted to deliver the washing/rinsing liquid into the washing tub 5, an electric pump adapted to drain and/or to re-circulate the washing/rinsing liquid from the washing tub 5, an electric heater adapted to heat the washing/rinsing liquid, etc.
- the washing machine 1 advantageously comprises a logic unit (for example an electronic board, a microcontroller, a microprocessor, etc.), schematically indicated in Figure 1 with the block numbered 12, adapted to control the electric and/or electronic components of the washing machine 1, so as to make the washing machine 1 to perform a washing cycle comprising one or more phases; for example the washing cycle may comprise a prewash phase, a soaking phase, a main wash phase (comprising, for example, the adduction into the washing tub 5 of water mixed with detergent and the rotation of the drum 6, so as to apply a mechanical action on the laundry), a steam supplying phase, a rinsing phase, a spinning phase, etc.
- a logic unit for example an electronic board, a microcontroller, a microprocessor, etc.
- the washing cycle may comprise one or more of the above mentioned phases (or also other phases well known in the art) adapted to apply to the laundry to be washed a specific chemical and/or physical action.
- a phase of the washing cycle depending on the specific washing programme which has been set, may be performed, during a single washing cycle, only once or also two or more times.
- the duration of the overall washing cycle depends on the kind, on the number, and on the duration of its phases.
- the washing machine 1 comprises a user interface 13, operatively connected to the logic unit 12, adapted for setting a washing programme to which corresponds a washing cycle to be performed, and adapted also for presenting user information; these information may be, for example, the name of a particular washing programme, the weight of the loaded laundry, the duration of the washing cycle, the temperature of the washing/rinsing liquid, the rotating speed of the spinning, etc.; more in general the user interface 13 is adapted to present information related to the washing programme and/or the washing cycle and/or the status of the washing machine 1.
- the user interface 13 advantageously comprises a display device 14, preferably a LCD or a LED display, adapted for presenting user information, and a separated input device, not illustrated, comprising for example a keyboard, and/or a set of keys or knobs, and/or one or more touch-sensitive input devices, etc., adapted for setting a washing programme.
- a display device 14 preferably a LCD or a LED display, adapted for presenting user information
- a separated input device not illustrated, comprising for example a keyboard, and/or a set of keys or knobs, and/or one or more touch-sensitive input devices, etc., adapted for setting a washing programme.
- the user interface 13 may comprise a touch-sensitive display adapted both for presenting user information, and for allowing a user, by touching some specific regions of this touch-screen display, to set a washing programme.
- the logic unit 12 may be advantageously integrated in the user interface 13.
- the expression "to set a washing programme” has to be intended as selecting, among some possibilities provided by the washing machine 1, one or more parameters related to the washing cycle to be performed; for example the user may select the type of laundry to be washed (for example silk, wool, cotton, linen, etc.), and/or the soil degree of the laundry (for example very soiled, soiled, not very soiled, etc.), and/or the possibility to apply or not a steam jet to the laundry (for example to disinfect the latter), and/or the maximal rotation speed of the rotatable drum 6 during the spinning phase, etc.
- the type of laundry to be washed for example silk, wool, cotton, linen, etc.
- the soil degree of the laundry for example very soiled, soiled, not very soiled, etc.
- a steam jet for example to disinfect the latter
- maximal rotation speed of the rotatable drum 6 during the spinning phase etc.
- the logic unit 12 computes these parameters and selects, among a set of washing cycles memorized in its memory, a washing cycle which fits to the parameters set by the user.
- the logic unit 12 may be configured to set the duration and/or the number or repetitions of one or more of the phases of the washing cycle which, according to the data memorized in the memory of the logic unit 12, best fits to the parameters selected by the user (i.e. to the set washing programme).
- the logic unit 12 may be configured so as to display, via the user interface 13, the duration of one or more of the phases of the washing cycle, and/or the number of repetition of one or more phases (for example the number of rinses), and/or of the overall duration of the washing cycle, corresponding to the parameters selected by the user.
- FIG. 2 it is represented a washing machine 1 according to the invention after the setting of a washing programme but before starting the loading of the laundry into the rotatable drum 6; in Figures 2 and 3 it is represented a condition in which a user has already set a washing programme by the user interface 13. For example the user may have selected the type of laundry to be washed, the degree of soil, etc.
- the logic unit 12 has selected, among the washing cycles memorized in its memory, the washing cycle which best fits to the washing programme set by the user, and it has also calculated and displayed in the display device 14 a minimum value (indicated in Figure 3 by the reference number 15) of the duration of the overall washing cycle which corresponds to the set washing programme and which is suitable for a weight of the laundry 7 loaded into the rotatable drum 6 lower than a prefixed value (for example 1 kg, or 2 kg, etc.) which is stored in the memory of the logic unit 12; in the example illustrated in Figure 3 , this minimum value of the overall duration of the washing cycle is 1.10 (that is one hour and ten minutes). In this specific example, therefore, up to reaching this prefixed value of the weight of the laundry loaded into the rotatable drum 6, the duration of the overall washing cycle depends only on the selected washing programme, and not on the weight of the laundry.
- a prefixed value for example 1 kg, or 2 kg, etc.
- the logic unit 12 may be configured so as to represent via the user interface 13, after the setting of the washing programme but before starting the loading of the laundry 7 into the washing drum 6, a maximum value of the overall duration of the washing cycle which corresponds to the set washing programme and which is suitable for the maximum weight of laundry which may be introduced into the rotatable drum 6 for such a set washing programme.
- the logic unit 12 may be configured in such a way that after the selection of the washing programme and before starting the loading of the laundry into the rotatable drum 6, the user interface 13 doesn't represent any information related to the duration of the washing cycle.
- the logic unit 12 may be configured in such a way that, after the selection of the washing programme and before starting the loading of the laundry into the rotatable drum 6, the user interface 13 displays, as a replacement for, or in addition to, the overall duration of the washing cycle, the duration and/or the number of repetition of one or more specific phases of the washing cycle (for example the prewash, and/or the main wash, and/or the rinsing, and/or the spinning, etc.) which correspond to the set washing programme, and which are suitable for a weight of the laundry 7 loaded into the rotatable drum 6 lower than a prefixed value (which may be for example stored in the memory of the logic unit 12), or which are suitable for the maximum weight of laundry which may be introduced into the rotatable drum 6 for such a set washing programme.
- a prefixed value which may be for example stored in the memory of the logic unit 12
- the logic unit 12 is advantageously configured in such a way that, after the selection of the washing programme and before starting the loading of the laundry into the rotatable drum 6, the user interface 13 displays the overall duration (numbered 15 in Figure 10 ) of the washing cycle and the number of rinses (numbered 20 in Figure 10 ) which correspond to the set washing programme, and which are suitable for a weight of the laundry 7 loaded into the rotatable drum 6 lower than a prefixed value (which is stored in the memory of the logic unit 12).
- the logic unit 12 is configured for adapting the duration and/or number of repetitions of one or more phases of the washing cycle corresponding to a set washing programme to the actual weight and/or quantity of the loaded laundry 7 calculated/detected, during one or more of the washing phases, as a function of the pressure and/or water level in the washing tub 5 (detected for example by a pressostat), and/or of the washing liquid absorbed by the loaded laundry 7, and/or of one or more electrical and/or mechanical quantities related to the rotation of the drum 6 and/or to the electric motor rotating the drum (for example the behaviour of the electrical current absorbed by the electric motor rotating the drum, the drive torque of the motor, the inertia of the loaded drum, the unbalance of the loaded drum, etc.).
- the logic unit 12 is advantageously configured for calculating and setting, during one or more of the washing phases, an actual duration and/or number of repetitions of one or more phases of the washing cycle as a function of the actual weight and/or quantity of the loaded laundry 7; this actual weight/quantity is calculated/detected as a function of the pressure and/or water level in the in the washing tub 5, and/or of the washing liquid absorbed by the loaded laundry 7, and/or of one or more electrical and/or mechanical quantities related to the rotation of the drum 6 and/or to the electric motor rotating the drum.
- the logic unit 12 may be configured in such a way to represent via the user interface 13 also the maximum weight of the laundry which may be loaded for a set washing programme; for example in the display device 14 of Figure 3 , and in the display device 14 of Figure 10 there are represented the maximum weight of laundry which may be introduced into the rotatable drum 6 (i.e. 8.0 kilograms) for a selected washing programme, and the duration of the overall washing cycle (in this case 1 hour and 10 minutes) corresponding to the selected washing programme and suitable for a weight of the laundry 7 loaded into the rotatable drum 6 lower than a prefixed value, not illustrated.
- the maximum weight of laundry which may be introduced into the rotatable drum 6 (i.e. 8.0 kilograms) for a selected washing programme
- the duration of the overall washing cycle in this case 1 hour and 10 minutes
- the washing machine 1 is also provided with a weighing device, not illustrated, adapted to detect the weight of the laundry 7 during its loading into the rotatable drum 6 (and therefore before the start of the washing cycle).
- the weighing device may comprise one or more transducers, not illustrated, operatively connected to the logic unit 12; the transducers may comprise, for example, a load cell or a strain gauge.
- one or more transducers may be associated with the resilient support system 8 supporting the washing tub 5; in a further embodiment one or more transducers may be associated with the support of the washing machine 1 (for example to one or more support feet, not represented, adapted to support the casing 2 of the washing machine 1), so as to detect the overall weight of the washing machine 1 (in this last case the weight sensed by the one or more transducers increases when the laundry is loaded into the rotatable drum 6).
- the weighing device may comprise one or more transducers, not illustrated, adapted to sense a variation of the length of the shock-absorbing devices or dampers 9, and to communicate this information to the logic unit 12, which is configured in such a way to associate this length variation to a variation of the weight of the washing tub 5, and therefore to the weight of the laundry 7 loaded into the rotatable drum 6.
- one or more of the dampers 9 interposed between the washing tub 5 and the bottom of the casing 2 may comprise a piston 9a movable in a cylindrical housing 9b, and a device, not illustrated, adapted to measure the position of the piston 9a inside the housing 9b; this device may comprise a coil unit wound around the housing 9b of the damper 9 and a sensor element located at the end of the piston 9a, which is located inside the cylindrical housing 9b.
- the sensor element may be made of metal, e.g. iron.
- the coil unit is connected by wire to an evaluating unit of the washing machine 1, operatively connected to the logic unit 12 (the evaluating unit may be for example comprised in the logic unit 12).
- the sensor element changes the inductivity of the coil unit.
- the travel path length of the piston 9a can be determined by the evaluating unit.
- the logic unit 12 may be in this case configured for calculating the weight of the laundry loaded into the rotatatble drum 6 as a function of the detected travel path length of the piston 9a.
- the logic unit 12 is advantageously configured for calculating the estimated duration and/or number of repetitions of one or more phases of the washing cycle corresponding to a set washing programme to the weight of the loaded laundry 7 detected by the weighing device, and for displaying, via the user interface 13, during the loading of the laundry 7 into the rotatable drum 6, information related to the estimated duration and/or number of repetitions of one or more of the phases (e.g. the number of rinses) of the washing cycle modified according to the weight of the loaded laundry 7 detected by the weighing device.
- the expression "information related to the estimated duration and/or number of repetitions of one or more of the phases of the washing cycle" may as well indicate information related to the estimated duration and/or number of repetitions of one or more specific phases of the washing cycle (for example the rinsing phase) and also information related to the estimated duration of the overall washing cycle (which depends on, and therefore is related to, the estimated duration and the number of repetitions of its phases).
- the estimated duration and/or number of repetitions of one or more specific phases of the washing cycle doesn't necessarily coincide with the actual duration and/or number of repetitions of one or more specific phases of the washing cycle calculated by the logic unit 12, during one or more of the washing phases, as a function of the actual weight and/or quantity of the loaded laundry 7 calculated/detected, during one or more of the washing phases, as a function of the pressure and/or water level in the washing tub 5, and/or of the washing liquid absorbed by the loaded laundry 7, and/or of one or more electrical and/or mechanical quantities related to the rotation of the drum 6 and/or to the electric motor rotating the drum; in fact the measure of the weight of the laundry 7 by the weighing device is less precise than the measure of the actual weight and/or quantity of the loaded laundry 7 actuated during one or more of the washing phases (preferably at the very beginning of the washing cycle), as a function of the pressure and/or water level in the washing tub 5, and/or of the washing liquid absorbed by the loaded laundry 7, and/or of one
- the estimated duration and/or number of repetitions of one or more specific phases of the washing cycle corresponding to a selected washing programme and to the weight of the laundry 7 present into the rotatable drum 6 and detected by the weighing device are therefore used mainly for providing the user with a quick but rough indication of which approximately will be the duration and/or number of repetitions of one or more specific phases of the washing cycle, so that he can quickly foreseen when the washing procedure corresponding to the selected washing programme will approximately last for a loaded weight/quantity of loaded laundry; by this quick indication the user may therefore decide to unload some laundry or to load some more laundry, in order to obtain the desired estimated duration of the washing cycle.
- the actual duration and/or number of repetitions of one or more specific phases of the washing cycle is calculated by the logic unit 12 only after the beginning of the washing cycle (preferably at the very beginning of the washing cycle), as indicated above, and is more precise than the estimated duration and/or number of repetitions of one or more specific phases of the washing cycle calculated by the weighing device.
- the logic unit 12 is advantageously configured so that, during the loading of the laundry 7 into the rotatable drum 6, the logic unit 12 may calculate and display, via the user interface 13, the estimated duration of the overall washing cycle corresponding to a selected washing programme and to the weight of the laundry 7 present into the rotatable drum 6 and detected by the weighing device.
- FIGs 4 and 5 it is represented the user interface 13 of a washing machine 1 according to the invention after the selection of a washing programme and during the loading of the laundry 7 into the rotatable drum 6; in this case the display device 14 of the user interface 13 represents the estimated duration of the overall washing cycle, indicated Figure 5 by the reference number 16, which has been modified by the logic unit 12 for adapting it to the weight of the laundry 7 loaded into the rotatable drum 6 which has been detected by the weighing device.
- the estimated duration of the overall washing cycle is indicated as "1.50" (that is 1 hour and 50 minutes); it is noticed that the estimated duration of the overall washing cycle has been increased with respect to the estimated duration indicated in Figure 3 (which was 1.10), because a certain amount of laundry 7 has been loaded into the rotatable drum 6, and the logic unit 12 has adapted the estimated duration of the overall washing cycle to the weight of this laundry sensed by the weighing device.
- the logic unit 12 may be adapted to represent via the user interface 13, after the setting of the washing programme but before staring the loading of the laundry 7 into the washing drum 6, a maximum value of the duration of the overall washing cycle which corresponds to the set washing programme and which is suitable for a prefixed maximum weight of laundry which may be introduced into the rotatable drum 6 for such a set washing programme.
- the duration and/or the number of repetitions of one or more phases of the washing cycle (and therefore the duration of the overall washing cycle) suitable for the set washing programme and for this loaded laundry 7 is lower than the duration and/or the number of repetitions suitable for the maximum weight; therefore, in this case, if the weight of the laundry loaded into the rotatable drum 6 is lower than the maximum weight, the estimated duration of the overall washing cycle displayed in the user interface 13 decreases with respect to the above indicated maximum value.
- the logic unit 12 may be configured in such a way that, after the selection of a washing programme and before starting the loading of the laundry into the rotatable drum, the user interface doesn't represent any information related to the estimated duration of the washing cycle which corresponds to the set washing programme; in this case the logic unit 12 may be configured in such a way that when the user starts loading the laundry 7 into the rotatable drum 6, the logic unit 12 calculates the estimated duration and/or the estimated number of repetitions of one or more phases of the washing cycle (and therefore the estimated duration of the overall washing cycle) suitable for the weight of the loaded laundry 7 detected by the weighing device and for the set washing programme, and displays via the user interface 13 information related to this calculated estimated duration and/or number of repetitions of one or more phases of the washing cycle (for example the estimated duration of the overall washing cycle).
- the logic unit 12 may be configured for calculating and displaying, via the user interface 13, after a washing programme has been set and during the loading of the laundry 7 into the rotatable drum 6, the approximate hour of the day at which the end of the washing cycle is foreseen (starting substantially in that moment, or according to a preferred delay which may be set by the user) for the set washing programme a and for the weight of the laundry present in that moment into the rotatable drum 6 and detected by the weighing device.
- the logic unit 12 is advantageously configured for displaying, via the user interface 13, during the loading of the laundry 7 into the rotatable drum 6, both the estimated duration of the overall washing cycle (numbered 16 in Figure 11 ) corresponding to a selected washing programme and to the weight of the laundry 7 present into the rotatable drum 6 and detected by the weighing device, and also the estimated number of rinses (numbered 21 in Figure 11 ), corresponding to a selected washing programme and to the weight of the laundry 7 present into the rotatable drum 6 and detected by the weighing device.
- the washing programme is set before starting the loading of the laundry into the rotatatble drum 6; preferably, but not necessarily, the logic unit 12 may be configured in such a way that the washing programme may be set also during the loading of the laundry into the rotatable drum 6 (i.e. after starting loading the laundry).
- the logic unit 12 may be configured in such a way that if a certain amount of laundry 7 is loaded into the rotatable drum 6 before setting the washing programme, and then a washing programme is set by the user, the logic unit 12, after the setting of the washing programme, calculates the estimated duration and/or the estimated number of repetitions of one or more phases of the washing cycle corresponding to this set washing programme and adapted to the weight of the loaded laundry 7 detected by the weighing device; in this case the logic unit 12 is also configured for displaying, during the loading of the laundry 7, information related to this estimated adapted duration and/or number of repetitions via the user interface 13.
- the logic unit 12 is adapted to calculate and to displays via the user interface 13, during the loading of the laundry 7, the value of the detected weight of the loaded laundry 7 and/or the percentage of the maximum allowed weight for the set programme which is loaded in a particular moment.
- the display device 14 of the user interface 13 is advantageously adapted to represent a number indicating the maximum weight allowed for a set washing programme (for example the number "8.0" in Figure 5 ), and a number indicating the weight of the laundry 7 loaded into the rotatable drum 6 (for example the number "3.5" in Figure 5 ) which has been detected by the weighing device.
- the user interface 13 comprises a level indicator 17 adapted to give a visual indication of the loading level of the rotatable drum 6; in the embodiments illustrated in Figures 1 to 7 and 9 to 11 , the level indicator 17 comprises, for example, a status bar provided in the display device 14, which changes its length (or colour, or shape) according to the weight of the laundry 7 loaded into the rotatable drum 6; clearly this feature may also be absent.
- a status bar provided in the display device 14, which changes its length (or colour, or shape) according to the weight of the laundry 7 loaded into the rotatable drum 6; clearly this feature may also be absent.
- a user may start loading the laundry 7 into the rotatable drum 6; as described above, during the loading of the laundry 7 the weighing device detects the weight of the laundry 7, and the logic unit 12 calculates the estimated duration and/or the estimated number of repetitions of one or more of the phases of the washing cycle (and therefore calculates the estimated overall duration of the washing cycle) according to a set washing programme and to the weight of the loaded laundry 7 detected by the weighing device; the logic unit 12 also displays via the user interface 13 information related to the estimated duration and/or to the estimated number of repetitions of one or more of the phases of the washing cycle depending on the set washing programme and adapted to the weight of the loaded laundry 7 detected by the weighing device.
- the logic unit 12 is configured in such a way to calculate and to display via the display device 14, after the setting of the washing programme and during the loading of the laundry 7, the duration of the overall washing cycle corresponding to the set washing programme and to the detected weight of the loaded laundry 7.
- the display device 14 displays the estimated duration of the overall washing cycle (numbered 16 in figure 11 ) and also the estimated number of repetitions of the rinsing phases (numbered 21 in figure 11 ) corresponding to the set washing programme and adapted to the weight of the laundry 7 loaded into the rotatable drum 6 and detected by the weighing device.
- the user interface 13 may be arranged in such a way to display information related to the status of the washing machine 1; for example the user interface 13 may indicate (for example by a writing and/or by one or more icons) that the washing machine 1 is switched on but the washing programme has not been yet selected, that the laundry is being loaded, etc.
- the display device 14 illustrated in the enclosed Figures is advantageously arranged in such a way that, during the loading of the laundry 7, it displays the writing "LOAD LAUNDRY"; clearly this feature may also be absent.
- the user When the user reaches the desired value of the estimated duration of the overall washing cycle (or the desired value of the estimated duration and/or number of repetitions of one or more washing phases, if this value is represented in the user interface 13), he may conclude the loading of the laundry 7.
- the loading of the laundry 7 into the rotatable drum 6 is considered concluded when the user has ceased to introduce the laundry into the rotatable drum 6; it is clear that, after starting loading the laundry into the rotatable drum 6, the loading of the laundry 7 is considered concluded at least after the closure of the door 4.
- the logic unit 12 may be configured in such a way that, after opening the door 4 and starting the loading of the laundry 7 into the rotatable drum 6, the logic unit 12 considers concluded the loading of the laundry 7 when door 4 is closed.
- the closure of the door 4 may be detected, for example, by a suitable electric sensor or switch, not illustrated, operatively connected to the logic unit 12 so as to communicate to the latter that the door 4 is closed; in other words, in this case the washing machine 1 is arranged in such a way that, when the door 4 is closed, the logic unit 12 is informed that the loading of the laundry 7 has been concluded (in other words, the conclusion of the loading of the laundry coincides with the closure of the door 4).
- the washing machine 1 comprises input means adapted for allowing the user to inform the logic unit 12 that the loading of the laundry 7 has been concluded; advantageously the input means may be comprised in the user interface 13, or it my be a dedicated input element, comprising, for example, a button and/or a knob, and/or a touch-sensitive sensor, etc.
- the input means may be comprised in the user interface 13, or it my be a dedicated input element, comprising, for example, a button and/or a knob, and/or a touch-sensitive sensor, etc.
- the user may act on this input means for informing the logic unit 12 that the loading of the laundry has been concluded; in this case the conclusion of the loading of the laundry 7 may not coincide with the closure of the door 4 (for example it may occur some time before the closure of the door 4).
- the user may start a washing cycle, for example by pressing a start button, not illustrated, present in the user interface 13; from this point, preferably at the very beginning of the washing cycle, the logic unit 12 calculates/detects the actual weight and/or quantity of the loaded laundry 7 as a function of the pressure and/or water level in the washing tub 5, and/or of the washing liquid absorbed by the loaded laundry 7, and/or of one or more electrical and/or mechanical quantities related to the rotation of the drum 6 and/or to the electric motor rotating the drum, and modifies the duration and/or number of repetitions of one or more phases of the washing cycle corresponding to the set washing programme as a function of this calculated/detected actual weight and/or quantity of the loaded laundry 7.
- the logic unit 12 may be configured for calculating and for displaying, via the user interface 13, information related to the amount of detergent required for the set washing programme and for the weight of the laundry 7 loaded into the rotatable drum 6 detected by the weighing device; in the embodiments illustrated in the enclosed Figures, the logic unit 12 is advantageously configured in such a way to calculate and to display, via the user interface 13, information 18 related to the amount of detergent required for the set washing programme and for the weight of the laundry 7 loaded into the rotatable drum 6 and detected by the weighing device, only after ending the loading of the laundry 7.
- the logic unit 12 may be configured in such a way to calculate and to display, via the user interface 13, information 18 related to the amount of detergent required for the set washing programme and for the weight of the laundry 7 loaded into the rotatable drum 6 and detected by the weighing device, also during the loading of the laundry 7.
- the logic unit 12 may be configured in such a way to calculate and to display, via the user interface 13, information 18 related to the amount of detergent required for the set washing programme and for the weight of the laundry 7 loaded into the rotatable drum 6 and detected by the weighing device, during and/or after the loading of the laundry 7.
- the information 18 related to the amount of detergent required for the selected washing programme and for the weight of the laundry 7 loaded into the rotatable drum 6 and detected by the weighing device may be, for example, the percentage of detergent (related to the maximum quantity of detergent allowed), required for a selected washing programme and for the quantity of laundry 7 detected by the weighing device.
- the information 18 related to the amount of detergent required for the selected washing programme and for the weight of the laundry 7 loaded into the rotatable drum 6 and detected by the weighing device may be advantageously displayed, as in the example of Figure 7 , in a region of the user interface 13 different from the region of the user interface 13 where the duration of the washing cycle and/or where the weight of the loaded laundry 7 are displayed.
- the logic unit 12 is configured in such a way that after ending the loading of the laundry 7 into the rotatable drum 6, the information related to the weight of the loaded laundry 7 disappears form the user interface 13, and the information 18 related to the amount of detergent required for the selected washing programme and for the weight of the laundry 7 loaded into the rotatable drum 6 and detected by the weighing device is displayed in the region of the user interface 13 where previously the information regarding weight of the laundry was displayed.
- the logic unit 12 may be configured for calculating and for displaying, after ending the loading of the laundry 7 (and therefore, in the example illustrated in the enclosed Figures, after the closure of the door 4), the approximate hour (indicated by the reference number 19 in Figure 7 ) of the day in which a selected washing programme will end (starting substantially in that moment, or according to a preferred delay which may be set by the user) for the weight of the laundry 7 present in that moment into the rotatable drum 6 and detected by the weighing device.
- the above indicated approximate hour of the day in which a selected washing programme will end is displayed in the same region of the display device 14 which is adapted to display the duration of the overall washing cycle.
- the logic unit 12 may be configured in such a way that a user is allowed to modify, for example by operating on the user interface 13 and/or on another suitable input device (for example a button or a knob), not illustrated, the estimated duration and/or the estimated number of repetitions of one or more of the phases of the washing cycle (for example of the rinsing phase), even after the loading of the laundry 7 (and therefore after the adaptation of the duration and/or the number of repetitions of one or more of the phases of the washing cycle to the weight of the loaded laundry 7 detected by the weighing device); in this case the logic unit 12 may be advantageously configured so as to calculate and to display, via the user interface 13, information related to the estimated duration of the washing cycle corresponding to the duration and/or number of repetitions of one or more of the phases of the washing cycle modified by the user after the loading of the laundry 7.
- another suitable input device for example a button or a knob
- the user interface 13 of the washing machine 1 may display a number (for example the number 1.5 in Figure 5 ) representing the estimated duration of the overall washing cycle calculated by the logic unit 12 according to the set washing programme and to the weight of the laundry 7 loaded into the rotatable drum 6 and detected by the weighing device.
- the logic unit 12 may be configured in such a way that a user, by operating on the user interface 13 and/or on another suitable input device, not illustrated, may modify the estimated duration and/or number of repetitions of one or more of the phases of the washing cycle (for example a user may manually modify the number of rinses which have to be performed during the washing cycle); in this case the logic unit 12 may be configured for calculating the estimated duration of the overall washing cycle corresponding to the modified number of repetitions of rinses, and for representing this new duration via the user interface 13.
- this new estimated duration doesn't correspond to the user's desired estimated duration
- the user may modify the quantity of laundry loaded into the rotatable drum 6 (for example he may remove some laundry from the rotatable drum 6), and/or the duration and/or the number of repetitions of one or more phases of the washing cycle, until reaching the desired value of the estimated duration of the washing cycle.
- the logic unit 12 may be configured in such a way to allow a user to set a different washing programme even after starting the loading of the laundry 7 into the rotatable drum 6; in this case the logic unit 12 may be configured for adapting the estimated duration and/or number of repetitions of one or more phases of the washing cycle to the new set washing programme and to the weight of the loaded laundry 7 detected by the weighing device, and for displaying via the user interface 13, information related to the new estimated duration and/or number or repetition of one or more phases of the washing cycle.
- a user wants to change washing programme (for example because he realizes that he set the wrong type of laundry), he may operate on the user interface 13 for changing the washing programme, so that the logic unit 12 modifies the estimated duration and/or number of repetitions of one or more phases of the washing cycle according to the new set washing programme and to the weight of the loaded laundry 7 detected by the weighing device, and displays via the user interface 13 information related to the modified duration and/or number of repetitions.
- a washing machine which, thanks to the possibility, during the loading of the laundry, to quickly provide the user with information related to the estimated duration and/or number of repetitions of one or more phases of the washing cycle (and therefore related to the estimated duration of the overall washing cycle), allows selecting the right quantity of laundry for obtaining a desired estimated duration of the washing cycle in a very easy way; if fact it is sufficient that a user, after setting a washing programme, continues loading the laundry into the rotatable drum until reaching the desired estimated duration. Moreover, the time required for performing this operation is very small, in particular compared with the above described known solutions.
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Claims (15)
- Waschmaschine (1), umfassend:- einen Laugenbehälter (5), der eine drehbare Trommel (6) umfasst, die zur Aufnahme der zu waschenden Wäsche (7) geeignet ist,- einen Elektromotor zum Drehen der drehbaren Trommel (6),- eine Logikeinheit (12), die geeignet ist, die elektrischen und/oder elektronischen Bauteile der Waschmaschine (1) zu steuern, so dass veranlasst wird, dass sie einen Waschgang durchführt, der eine oder mehrere Phasen umfasst,- eine Benutzerschnittstelle (13), die zum Einstellen eines Waschprogramms, dem ein durchzuführender Waschgang entspricht, und zum Darbieten von Benutzerinformationen geeignet ist,- eine Wiegevorrichtung, die zum Erfassen des Gewichts der in die drehbare Trommel (6) geladenen Wäsche (7) geeignet ist,wobei die Logikeinheit (12) mit der Wiegevorrichtung und der Benutzerschnittstelle (13) wirkverbunden und zur Anzeige von Informationen, die sich auf die Dauer und/oder die Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs beziehen, über die Benutzerschnittstelle (13) konfiguriert ist, wobei die Logikeinheit (12) dazu konfiguriert ist, die Dauer und/oder die Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs entsprechend einem eingestellten Waschprogramm an das berechnete/erfasste Ist-Gewicht und/oder die berechnete/erfasste Ist-Menge der geladenen Wäsche (7) während einer oder mehrerer Waschphasen als Funktion des Druck- und/oder Wasserpegels im Laugenbehälter (5) und/oder der von der geladenen Wäsche (7) absorbierten Waschlauge und/oder einer oder mehrerer elektrischer und/oder mechanischer Größen im Zusammenhang mit der Drehung der Trommel (6) und/oder mit dem die Trommel (6) drehenden Elektromotor anzupassen,
dadurch gekennzeichnet, dass
die Logikeinheit (12) dazu konfiguriert ist, während des Ladens der Wäsche (7) in die drehbare Trommel (6) Informationen im Zusammenhang mit der geschätzten Dauer und/oder Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs entsprechend einem eingestellten Waschprogramm und angepasst an das durch die Wiegevorrichtung erfasste Gewicht der geladenen Wäsche (7) zu berechnen und über die Benutzerschnittstelle (13) anzuzeigen. - Waschmaschine nach Anspruch 1, wobei die Informationen im Zusammenhang mit der geschätzten Dauer und/oder Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs entsprechend einem eingestellten Waschprogramm und angepasst an das durch die Wiegevorrichtung erfasste Gewicht der geladenen Wäsche (7) die geschätzte Dauer des gesamten Waschgangs umfassen.
- Waschmaschine nach Anspruch 1, wobei die Informationen im Zusammenhang mit der geschätzten Dauer und/oder Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs entsprechend einem eingestellten Waschprogramm und angepasst an das durch die Wiegevorrichtung erfasste Gewicht der geladenen Wäsche (7) die ungefähre Tagesstunde umfassen, für die das Ende des Waschgangs für das eingestellte Waschprogramm und das durch die Wiegevorrichtung erfasste Gewicht der in die drehbare Trommel (6) geladenen Wäsche (7) vorhergesehen wird.
- Waschmaschine nach Anspruch 1, 2 oder 3, wobei die Logikeinheit (12) dazu konfiguriert ist, nach dem Einstellen eines Waschprogramms und vor der Aufnahme des Ladens der Wäsche (7) in die drehbare Trommel (6) die Dauer des gesamten Waschgangs, der dem eingestellten Waschprogramm entspricht und der für ein Gewicht der Wäsche geeignet ist, das unter einem zuvor festgelegten Wert liegt, zu berechnen und über die Benutzerschnittstelle (13) anzuzeigen.
- Waschmaschine nach Anspruch 1, 2 oder 3, wobei die Logikeinheit (12) dazu konfiguriert ist, nach dem Einstellen eines Waschprogramms und vor der Aufnahme des Ladens der Wäsche (7) in die drehbare Trommel (6) die Dauer des gesamten Waschgangs, der dem eingestellten Waschprogramm entspricht und der für das Höchstgewicht an Wäsche (7) geeignet ist, das für das eingestellte Waschprogramm in die drehbare Trommel (6) eingeführt werden kann, zu berechnen und über die Benutzerschnittstelle (13) anzuzeigen.
- Waschmaschine nach Anspruch 1, 2 oder 3, wobei die Logikeinheit (12) so konfiguriert ist, dass die Benutzerschnittstelle (13) nach der Wahl eines Waschprogramms und vor der Aufnahme des Ladens der Wäsche (7) in die drehbare Trommel (6) keine Informationen im Zusammenhang mit der Dauer des Waschgangs, der dem eingestellten Waschprogramm entspricht, anzeigt.
- Waschmaschine nach Anspruch 1, 2 oder 3, wobei die Logikeinheit (12) so konfiguriert ist, dass die Logikeinheit (12) nach dem Einstellen eines Waschprogramms und vor der Aufnahme des Ladens der Wäsche (7) in die drehbare Trommel (6) die Dauer und/oder Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs, die dem eingestellten Waschprogramm entsprechen und die geeignet sind, solange das Gewicht der in die drehbare Trommel (6) geladenen Wäsche (7) unter einem zuvor festgelegten Wert bleibt, oder die für das Höchstgewicht von Wäsche (7) geeignet sind, das für das eingestellte Waschprogramm in die drehbare Trommel (6) eingeführt werden kann, berechnet und über die Benutzerschnittstelle (13) anzeigt.
- Waschmaschine nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Informationen im Zusammenhang mit der geschätzten Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs entsprechend einem eingestellten Waschprogramm und angepasst an das durch die Wiegevorrichtung erfasste Gewicht der geladenen Wäsche (7) die geschätzte Anzahl von Spülvorgängen, die während des Waschgangs durchzuführen sind, umfassen.
- Waschmaschine nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Logikeinheit (12) so konfiguriert ist, dass sie das Höchstgewicht der Wäsche (7), das für ein eingestelltes Waschprogramm geladen werden kann, berechnet und über die Benutzerschnittstelle (13) anzeigt.
- Waschmaschine nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Logikeinheit (12) so konfiguriert ist, dass sie während des Ladens der Wäsche (7) das von der Wiegevorrichtung erfasste Gewicht der geladenen Wäsche (7) und/oder den geladenen Prozentsatz des zulässigen Höchstgewichts für das eingestellte Waschprogramm berechnet und über die Benutzerschnittstelle (13) anzeigt.
- Waschmaschine nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Benutzerschnittstelle (13) eine Füllstandanzeige (17) umfasst, die geeignet ist, eine visuelle Angabe zum Ladefüllstand der drehbaren Trommel (6) zu machen.
- Waschmaschine nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Logikeinheit (12) so konfiguriert ist, dass sie während des Ladens und/oder nach dem Laden der Wäsche (7) Informationen (18), die sich auf die für das eingestellte Waschprogramm und für das durch die Wiegevorrichtung erfasste Gewicht der in die drehbare Trommel (6) geladenen Wäsche (7) erforderliche Menge an Waschmittel beziehen, berechnet und über die Benutzerschnittstelle (13) anzeigt.
- Waschmaschine nach Anspruch 12, wobei die Logikeinheit (12) so konfiguriert ist, dass die Informationen (18), die sich auf die für das gewählte Waschprogramm und für das durch die Wiegevorrichtung erfasste Gewicht der in die drehbare Trommel (6) geladenen Wäsche (7) erforderliche Menge an Waschmittel beziehen, in einem Bereich der Benutzerschnittstelle (13) angezeigt werden, der sich von dem Bereich der Benutzerschnittstelle (13) unterscheidet, in dem die Informationen im Zusammenhang mit der geschätzten Dauer und/oder Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs, angepasst an das von der Wiegevorrichtung erfasste Gewicht der geladenen Wäsche (7), angezeigt werden.
- Waschmaschine nach Ansprüchen 10 und 12, wobei die Logikeinheit (12) so konfiguriert ist, dass die Informationen im Zusammenhang mit dem Gewicht der geladenen Wäsche (7) nach beendetem Laden der Wäsche (7) in die drehbare Trommel (6) von der Benutzerschnittstelle (13) verschwinden und die Informationen (18) im Zusammenhang mit der für das gewählte Waschprogramm und für das Gewicht der in die drehbare Trommel (6) geladenen Wäsche (7) erforderlichen Menge an Waschmittel im selben Bereich der Benutzerschnittstelle (13) angezeigt werden, in dem zuvor die Informationen über das Gewicht der Wäsche angezeigt wurden.
- Waschmaschine nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Logikeinheit (12) so konfiguriert ist, dass ein Benutzer die geschätzte Dauer und/oder Anzahl von Wiederholungen einer oder mehrerer Phasen des Waschgangs selbst nach dem Laden der Wäsche (7) in die drehbare Trommel (6) modifizieren kann, und dass sie die geschätzte Dauer des gesamten Waschgangs entsprechend der modifizierten Dauer und/oder Anzahl von Wiederholungen berechnet und über die Benutzerschnittstelle (13) anzeigt.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10192652.5A EP2458058B1 (de) | 2010-11-26 | 2010-11-26 | Waschmaschine |
PCT/EP2010/069719 WO2011080074A1 (en) | 2009-12-16 | 2010-12-15 | Washing machine |
AU2010338451A AU2010338451B2 (en) | 2009-12-16 | 2010-12-15 | Washing machine |
US13/514,134 US9534338B2 (en) | 2009-12-16 | 2010-12-15 | Washing machine |
CN201080056941.7A CN102656308B (zh) | 2009-12-16 | 2010-12-15 | 洗衣机 |
RU2012129876/12A RU2012129876A (ru) | 2009-12-16 | 2010-12-15 | Стиральная машина |
BR112012014523-1A BR112012014523B1 (pt) | 2009-12-16 | 2010-12-15 | Máquina de lavar |
Applications Claiming Priority (1)
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EP10192652.5A EP2458058B1 (de) | 2010-11-26 | 2010-11-26 | Waschmaschine |
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EP2458058A1 EP2458058A1 (de) | 2012-05-30 |
EP2458058B1 true EP2458058B1 (de) | 2016-08-10 |
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EP10192652.5A Active EP2458058B1 (de) | 2009-12-16 | 2010-11-26 | Waschmaschine |
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EP3257996B1 (de) * | 2016-06-13 | 2019-08-07 | Electrolux Appliances Aktiebolag | Verfahren zum betreiben einer wäschebehandlungsvorrichtung und wäschebehandlungsvorrichtung |
EP3257995B1 (de) * | 2016-06-13 | 2019-10-23 | Electrolux Appliances Aktiebolag | Verfahren zum betreiben einer wäschebehandlungsvorrichtung und wäschebehandlungsvorrichtung |
CN112522915A (zh) * | 2019-09-17 | 2021-03-19 | 青岛海尔滚筒洗衣机有限公司 | 一种空气洗方法及衣物处理设备 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU525345B2 (en) | 1978-04-04 | 1982-11-04 | Tokyo Shibaura Denki Kabushiki Kaisha | Automatic washer |
GB2087438B (en) | 1980-11-03 | 1984-03-21 | Ti Domestic Appliances Ltd | Improvements in or relating to washing machines |
EP0110999A4 (de) | 1982-05-10 | 1985-04-24 | Matsushita Electric Ind Co Ltd | Waschmaschine. |
FR2577949B1 (fr) | 1985-02-28 | 1988-02-12 | Esswein Sa | Machine a laver et a essorer a duree d'essorage variable |
DE3838998A1 (de) | 1988-11-18 | 1990-05-23 | Licentia Gmbh | Beladungsmengenanzeige, insbesondere bei haushaltwaschmaschinen |
DE8914729U1 (de) * | 1989-12-15 | 1990-07-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Wäschepflegegerät, insbesondere Waschmaschine oder Wäschetrockner |
DE19946245C2 (de) | 1998-10-01 | 2002-09-05 | Miele & Cie | Verfahren zur Steuerung eines Waschprogramms |
EP1029964B1 (de) | 1999-02-17 | 2004-10-13 | Miele & Cie. KG | Verfahren zur Anzeige von Benutzerinformationen in einer programmgesteuerten Waschmaschine und Waschmaschine zur Durchführung dieses Verfahrens |
EP1683902A1 (de) * | 2005-01-20 | 2006-07-26 | Electrolux Home Products Corporation N.V. | Maschine zum Waschen oder zum Trocknen von Wäsche mit verbesserter Steuervorrichtung |
DE102008006613B4 (de) * | 2008-01-29 | 2012-03-15 | Miele & Cie. Kg | Frontbeschickbare Wäschebehandlungsmaschine mit Anzeigeelement |
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