EP3412821A1 - Dispositif permettant de déterminer un schéma de lavage optimal pour une charge dans une machine à laver - Google Patents

Dispositif permettant de déterminer un schéma de lavage optimal pour une charge dans une machine à laver Download PDF

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Publication number
EP3412821A1
EP3412821A1 EP17174906.2A EP17174906A EP3412821A1 EP 3412821 A1 EP3412821 A1 EP 3412821A1 EP 17174906 A EP17174906 A EP 17174906A EP 3412821 A1 EP3412821 A1 EP 3412821A1
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EP
European Patent Office
Prior art keywords
washing machine
load
drum
arrangement
micromachine
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
Application number
EP17174906.2A
Other languages
German (de)
English (en)
Other versions
EP3412821B1 (fr
Inventor
Burhan GÜLBAHAR
Gorkem MEMISOGLU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vestel Elektronik Sanayi ve Ticaret AS
Ozyegin Universitesi
Original Assignee
Vestel Elektronik Sanayi ve Ticaret AS
Ozyegin Universitesi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vestel Elektronik Sanayi ve Ticaret AS, Ozyegin Universitesi filed Critical Vestel Elektronik Sanayi ve Ticaret AS
Priority to EP17174906.2A priority Critical patent/EP3412821B1/fr
Publication of EP3412821A1 publication Critical patent/EP3412821A1/fr
Application granted granted Critical
Publication of EP3412821B1 publication Critical patent/EP3412821B1/fr
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F31/00—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/16—Washing liquid temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/20—Washing liquid condition, e.g. turbidity
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis

Definitions

  • the invention refers to an arrangement in a washing machine for determining optimal wash scheme for a load received into the washing machine according to claim 1, and a washing machine according to claim 11.
  • A inserts the laundry into the washing machine, particularly into a drum of the washing machine. Washing detergents, and other similar products such as fabric softeners etc are used in washing laundry in the washing machine.
  • the user adds the detergents and other optional washing or laundry treatment agents, such as fabric softeners, to the washing machine in particular the load and then generally selects a desired wash program from a set of pre-provided wash programs or selects a combination of program parameters such as using extra water, soaking before washing etc, before starting the washing operation of the washing machine.
  • pre-provided wash programs or the user selected program parameters for the washing are generally aimed at getting an optimal washing operation of the load to be carried out by the washing machine, most such pre-provided wash programs or the user selected program parameters fail to precisely take into account or factor in the effects of real time parameters, factors or conditions such as characteristics of the detergent being used for washing of that load, characteristic of the water being used for washing of that load, and also characteristics of the load itself, for example how dirty the laundry is.
  • Even when the user, during selection of the washing program or setting of the program parameters of the washing aims to take into account or factor in the effects of real time parameters, factors or conditions as aforementioned, the user has to rely on experience, his intuition and expertise, which are prone to human error. There is no way for the user to find out the optimal wash scheme that takes into account or factors in the effects of the aforementioned real-time parameters, factors or conditions.
  • the aforementioned real-time parameters have a significant effect on the washing of the laundry.
  • an amount of water to be used differs for different loads for example color of the laundry and degree of dirtiness of the laundry i.e. how dirty or clean the clothes are when inserted into the washing machine drum.
  • different washing operations are required for example washing using hot water at 60°C or washing using non-heated water or washing using water at 45°C, and so on and so forth, depending on characteristics of the load.
  • the action and consumption of the detergent may be different owing to different modes/operations performed for the washing, and other factors such as water hardness, or interplay between different agents added, for example between the detergent and the fabric softener, and so on and so forth.
  • the aforementioned object is achieved by an arrangement in a washing machine for determining optimal wash scheme for washing a load received into the washing machine according to claim 1 of the present technique, which presents a first aspect of the present technique.
  • the arrangement is for determining the optimal wash scheme for a load that is put into the washing machine by a user, particularly into a drum of the washing machine.
  • the drum In the washing machine, the drum is rotatably mounted in a detergent solution tub of the washing machine.
  • the drum is configured to be rotated by a drive motor of the washing machine that is arranged outside of the detergent solution tub, and generally connected to the drum via a rotatable shaft.
  • the arrangement includes a micromachine, one or more sensors, and a microcontroller.
  • the micromachine has a hearth, i.e.
  • the hearth of the micromachine may be attached to the drum of the washing machine, i.e. the drum and the hearth may form a continuous volume such that a physical entity like a small piece of clothing from the load can move from the drum of the washing machine and into the hearth of the micromachine.
  • the hearth receives a part of the load from the drum of the washing machine, for example by suction generated within the hearth, which pulls in or suck in a small piece of clothing from the load or a part of larger piece of clothing.
  • the micromachine is configured to wash the part of the load so received into the hearth before the washing machine performs washing of the load present in the drum of the washing machine.
  • the required configuring i.e.
  • the requirement of micromachine washing the part of the load prior to the washing machine performing washing of the load present in the drum of the washing machine is achieved by programming the microcontroller of the arrangement and a controller of the washing machine to coordinate with each other as desired.
  • the controller of the washing machine is the processor or control module present in the washing machine that accepts user programs and executes different stages of the washing and drying cycle of the washing machine.
  • the one or more sensors are positioned around the hearth of the micromachine and are configured to determine one or more parameters relating to characteristics of water used in the washing machine, characteristics of detergent solution formed in the washing machine, and/or characteristics of the part of the load present in the hearth.
  • the microcontroller then receives, from the one or more sensors, one or more signals indicative of the one or more parameters so determined by the one or more sensors, and subsequently determines a wash scheme for the load in the washing machine based on the one or more parameters so determined by the one or more sensors.
  • the wash scheme is a suggested washing and drying program of the washing machine, and may include, but not limited to, occurrences of different stages in the washing machine such as soaking, washing, rinsing, spinning and different combinations thereof, order and repetitions of the aforementioned different stages, parameters of the different stages such as duration of any particular stage and/or speed of rotation of the drum of the washing machine in the that stage, and so on and so forth.
  • optimum washing scheme or program of the washing machine for the load inserted into the washing machine by the user is determined, and subsequently suggested to the user or decided for operation of the washing machine, automatically.
  • the washing of the part of the load by the micromachine generates results that are sensed by the sensors of the arrangement and subsequently communicated to the microcontroller thus allowing the microcontroller to interpolate the results and obtain a suitable optimal wash program i.e. the wash scheme for the entire load.
  • the optimal program for the washing of the load is selected in real time basis and depending on the parameters or factors that exist during the operation of the washing machine, for example the water that is being used for that washing of the load, the characteristics of the load such as color and degree of dirtiness, the detergent being used for that washing of the load, and so on and so forth.
  • This is unlike conventionally known washing machines which are based on operations that do not take into account real time factors, and are mostly based on algorithms that use predetermined parameters.
  • the micromachine is attached to the drum of the washing machine, i.e. is positioned within the detergent solution tub. This makes it easier to transfer the part of the load from the drum to the hearth of the micromachine.
  • the microcontroller is a part of a control module of the washing machine, i.e. is a part of the controller of the washing machine.
  • controllers are present in modern day washing machines and generally function to start and stop many different processes within the washing machine including pumps and valves to fill and empty the drum with water, control heating of the detergent solution in the drum, control rotating of the drum at different speeds, and so on and so forth.
  • the one or more sensors are configured to determine the one or more parameters before, during and/or after the washing of the part of the load so received into the hearth, i.e. the sensors may determine the different parameters for example turbidity of the detergent solution, i.e. of the detergent mixed with the water used for washing, before the micromachine washes the part of the load, and/or after the micromachine washes the part of the load.
  • the two different determinations i.e. the values of the parameters may be compared with each other to determine or analyze the effect of the washing of the part of the load by the micromachine.
  • the micromachine may be programmed to wash the part of the load for a predetermined time period or may be programmed to wash the part of the load until the part of the load is cleaned to a desired degree, which may be sensed by one of the sensors of the arrangement.
  • the micromachine is configured to receive the water from a water inlet of the washing machine and/or from the drum of the washing machine, for example by fluidly connecting the water inlet and/or the drum of the washing machine to the hearth of the micromachine.
  • the sensors of the arrangement are able to determine the parameters of the water that is being used or will be used for the washing of the load.
  • the characteristics of the water is one of a degree of hardness of the water, a degree of turbidity of the water, a temperature of the water, a pH of the water, and a combination thereof.
  • the micromachine is configured to receive the detergent solution from a detergent delivery system of the washing machine and/or from the drum of the washing machine, for example by fluidly connecting the detergent delivery system and/or the drum of the washing machine to the hearth of the micromachine.
  • the characteristic of the detergent solution is one of a degree of turbidity of the detergent solution, a temperature of the detergent solution, a pH of the detergent solution, and a combination thereof.
  • the arrangement may include one or more sensors that determine the parameters relating to the characteristics of the part of the load in the hearth.
  • the characteristics of the part of the load is one of a color of the part of the load i.e. of the laundry, a degree of dirtiness of the part of the load, and a combination thereof.
  • the micromachine is driven by the drive motor of the washing machine.
  • a separate driving mechanism is obviated for the micromachine.
  • a washing machine having an arrangement for determining optimal wash scheme for a load received into a drum of the washing machine, according to claim 11 which presents a second aspect of the present technique.
  • the drum within the washing machine is rotatably mounted in a detergent solution tub of the washing machine and is configured to be rotated by a drive motor of the washing machine.
  • the arrangement of the washing machine is according to the aforementioned first aspect of the washing machine.
  • Fig. 1 schematically shows a drum-type washing machine 99, hereinafter also referred to as washing machine 99.
  • Figs. 2 and 4 also schematically shows the washing machine 99.
  • the washing machine 99 includes a detergent solution tub 4, also referred to as an external tub or suds container, a drum 3 for accommodating laundry 90 or load 90 through an opening 8 (shown in Figs. 2 and 4 ) of the drum 3.
  • the drum 3 is rotatably mounted within the detergent solution tub 4, hereinafter also referred to as the tub 4.
  • the washing machine 99 also includes a drive motor 5. From the drive motor 5 extends a drive shaft 6 (shown in Figs. 2 and 4 ). The drive shaft 6 passes though the tub 4 and connects to the drum 3.
  • the drive shaft 6 rotationally couples the drum 3 with the drive motor 5.
  • the washing machine 99 has a wash solution discharge system 7 through which wash liquor is drained out of the washing machine 99.
  • the washing machine 99 also comprises other parts (not shown) that are required for functioning of such washing machines 99, such as foam detection mechanism, water heating elements, control buttons to program the washing machine, etc.
  • the washing machine 99 also includes a water inlet 2 and a detergent delivery system 9.
  • a user i.e., a person intending to use the washing machine 99 to clean or wash laundry i.e. the load 90, inserts or inputs the load 90 into the drum 3 of the washing machine 99 through a front opening 8 of the drum 3.
  • the user also places detergent, and any other washing aids such as fabric softeners into the detergent delivery system 9.
  • the user then starts the washing machine 99, i.e. instructs the washing operation to begin.
  • the washing machine 99 includes a control module 32, also referred to as a controller 32 or a main processor 32, often built into a control console having a user interface to accept user inputs, if any.
  • the control module 32 controls the operation of different components of the washing machine 99, for example starting and stopping of different processes within the washing machine 99 including pumps and valves to fill and empty the drum 3 with water, heating of the detergent solution in the drum 3, rotating of the drum 3 at different speeds, and so on and so forth.
  • the controller 32 also controls the water inlet 2 and thus decides when and how much water enters the washing machine 99.
  • the controller 32 further controls the detergent delivery system 9 and decides when the detergent or other washing aids such as fabric softeners resting in the detergent delivery system 9 are added to the drum 3 of the washing machine 99.
  • the aforementioned washing machine 99 incorporates an arrangement 1 according to the present invention.
  • the arrangement 1 when in the washing machine 99, determines optimal wash scheme for washing the load 90 that is received into the washing machine 99.
  • the arrangement 1 includes a micromachine 10, one or more sensors 20, and a microcontroller 30.
  • the micromachine 10 has a hearth 12, i.e. inner space or volume of the micromachine 10 in which a part 91 of the load 90 i.e. a small piece of clothing 91 or a fraction or part 91 of a large piece of clothing 90 can be inserted or received.
  • the hearth 12 may be understood to be similar in construct and function as the drum 3 of the washing machine 99 albeit suitable only for the part 91.
  • the hearth 12 or the drum equivalent 12 of the micromachine 10 may be attached to the drum 3 of the washing machine 99, as shown in Figs. 2 and 4 i.e. the drum 3 and the hearth 12 may form a continuous volume such that a physical entity i.e. for example the part 91 like a small piece of clothing from the load 90 can move from the drum 3 of the washing machine 99 and into the hearth 12 of the micromachine 10.
  • the hearth 12 receives the part 91 of the load 90 from the drum 3 of the washing machine 99, for example by suction generated within the hearth 12 that pulls in or suck in a small piece of clothing 91 from the load 90 or a part 91 of larger piece of clothing of the load 90.
  • the hearth 12 may be attached to the drum 3 such that an opening 11 (shown in Fig. 3 ) of the hearth 12 opens into the drum 3.
  • the transfer of the part 91 of the load 90 is preferably performed before the water and the detergent solution have been added to the drum 3, however the transfer of the part 91 of the load 90 may also be performed after the water and the detergent solution have been added to the drum 3 but before the washing of the load 90 is commenced in the drum 3 of the washing machine 99.
  • the micromachine 10 is configured to wash the part 91 of the load 90 so received into the hearth 12.
  • the washing of the part 91 of the load 90 by the micromachine 10 is performed before the washing machine 99 performs washing of the load 90 present in the drum 3 of the washing machine 99.
  • the controller 32 of the washing machine 99 is the processor or control module present in the washing machine 99.
  • the micromachine 10 may have a construct similar to an assembly of the drum 3, the detergent solution tub 4, the drive motor 5 and the shaft 6, i.e.
  • the hearth 12 of the micromachine 10 may be inside of a drum equivalent of the micromachine 10 which in turn is positioned inside a detergent solution tub equivalent of the micromachine 10.
  • the drum equivalent of the micromachine 10 may be driven by a micromachine drive motor and a connecting shaft extending from the micromachine drive motor and connecting to the drum equivalent of the micromachine 10.
  • the micromachine 10 is driven by the drive motor 5 of the washing machine 99.
  • a separate driving mechanism i.e. need for the micromachine drive motor is obviated.
  • the micromachine 10 may have another construct for example a non-perforated drum having an inlet to receive water and/or detergent solution and an outlet to drain off the wash liquor during and/or after the washing of the part 91 is completed within the hearth 12 of the micromachine 10.
  • the basic idea is that the micromachine 10 is such a component that functions to wash the part 91 present in the hearth 12 for a predetermined period of time or until a desired degree of cleaning of the part 91 is achieved.
  • the arrangement 1 also includes the one or more sensors 20. It may be noted that although Figs. 1 and 4 shows only one sensor 20, multiple sensors 20, 21, 22, 23 may be present in the arrangement 1, as shown in Fig. 3 .
  • the sensors 20, 21, 22, 23 are positioned around the hearth 12 of the micromachine 10 as shown in Fig. 3 .
  • the sensors 20, 21, 22, 23 are configured to determine one or more parameters relating to characteristics of the water used in the washing machine 99, characteristics of the detergent solution formed in the washing machine 99, and/or characteristics of the part 91 of the load 90 in the hearth 12 of the micromachine 10.
  • An example of the sensor 20 may be a turbidity meter, that uses the scattering effect of suspended particles in the water and/or in the detergent solution i.e. after the detergent provided into the washing machine 99 has been mixed or dissolved in the water received by the washing machine 99.
  • Another example of the sensor 20 may be a total dissolved solids meter (TDS meter) based on electrical conductivity measurement of the water and/or of the detergent solution. The total dissolved solids represent the total amount of mobile charged ions, including minerals, salts or metals dissolved in a given volume of water and/or a given volume of the detergent solution.
  • the measurements from the TDS meter and/or the turbidity meter may be used to determine a measure of hardness of the water being used in the washing machine 99, or to determine characteristics of the detergent solution.
  • Yet another example of the sensor 20 may be a thermometer that measures a temperature of the water and/or of the detergent solution. The thermometer or the temperature sensor may further determine a rate of cooling of the water and/or of the detergent solution that may in-turn be dependent on an ambient temperature in which the washing machine 99 is positioned.
  • a further example of the sensor 20 may be a pH meter that determines a pH of the water and/or of the detergent solution.
  • the sensor 20 may be a photometer that is used for determining a color of the part 91 or a degree of dirtiness of the part 91 of the load 90.
  • the arrangement 1 may have anyone or multiple of the aforementioned sensors 20.
  • the arrangement 1 includes four sensors 20,21,22,23 which may, for example, be a TDS meter, a photometer, a pH meter, and a temperature sensor.
  • the sensors may determine the different parameters for example turbidity of the detergent solution, the dirtiness of the part 91, the pH of the detergent solution before the micromachine 10 washes the part 91 of the load 90, during the washing of the part 91 of the load 90 and/or after the micromachine 10 has completed the washing of the part 91 of the load 90.
  • the values of the parameters may be compared with each other to determine or analyze the effect of the washing of the part 91 of the load 90 by the micromachine 10.
  • the micromachine 10 may be programmed to wash the part 91 of the load 90 for a predetermined time period or may be programmed to wash the part 91 of the load 90 until the part 91 of the load 90 is cleaned to a desired degree which may be sensed by one of the sensors 20, 21, 22, 23 of the arrangement 1 for example by the photometer or turbidity meter.
  • the microcontroller 30 then receives, from the one or more sensors 20,21,22,23, one or more signals indicative of the one or more parameters so determined by the sensors 20,21,22,23.
  • the microcontroller 30 then subsequently determines a wash scheme for the load 90 in the washing machine 99 based on the one or more parameters so determined by the sensors 20,21,22,23.
  • the wash scheme is a suggested washing, and optionally additional drying program, of the washing machine 99, and may include, but not limited to, occurrences of different stages in the washing machine 99 such as soaking, washing, rinsing, spinning and different combinations thereof, order and repetitions of the aforementioned different stages, parameters of the different stages such as duration of any particular stage and/or speed of rotation of the drum 3 of the washing machine 99 in the that stage, and so on and so forth.
  • the sensor 20 may be a turbidity meter and may measure the turbidity of the water when first added and mixed with the detergent or of the detergent solution if the detergent solution from the drum 3 is directly inducted into the hearth 12 of the micromachine 10.
  • the turbidity meter 20 then continuously or intermittently measures the turbidity of the solution present in the hearth 12 of the micromachine 10 as the part 91 of the load 90 is washed in the hearth 12 by the micromachine 10. After a few washings, rinsing and draining cycles of the part 91 in the hearth 12, the turbidity meter 20 measures a turbidity measurement of the wash liquor in the hearth 12 that represents that the part 91 has achieved a desired degree of cleaning, thereby indicating that washing of the part 91 is completed to a desired level.
  • the microcontroller 30 analyzes all the sensor measurements for the part 91 and interpolates and adjusts the results to calculate how many washing, rinsing and draining cycles have to applied to the load 90 in the drum 3 of the washing machine 99 for achieving the desired degree of cleaning of the load 90.
  • the microcontroller 30 may determine how much water is needed for rinsing and/or a temperature to which the water is to be heated and/or the speed and duration of rotation of the drum 3, and so on and so forth.
  • optimum washing scheme or program of the washing machine 99 for the load 90 inserted into the washing machine 99 by the user is determined based on the washing of the part 91 of the load 90 by the micromachine 10.
  • the optimal wash scheme as determined by the microcontroller 30, which may for example be a microprocessor or a FPGA, is then communicated to the control module 32 of the washing machine 99 and the control module 32 subsequently controls, i.e. starts, stops and regulates the water inlet 2 to control the water intake into the drum 3, the detergent delivery system 9 to control at what stage of the washing the detergent or other washing aids such as the fabric softeners are added to the drum 3, and/or the drive motor 5 to control when and for how long and at what speed the drum 3 is rotated during different stages of the washing of the load 90.
  • the microcontroller 30 which may for example be a microprocessor or a FPGA
  • the microcontroller 30 of the arrangement 1 may be present as separate entity while being in communication with the control module 32 of the washing machine 99, or as shown in Fig. 4 , the microcontroller 30 of the arrangement 1 may be present as part of the control module 32 of the washing machine 99.
  • the micromachine 10 is fluidly connected to the water inlet 2 and/or the drum 3 of the washing machine 99 and thus the hearth 12 of the micromachine 10 receives the water from the water inlet 2 of the washing machine 99 and/or from the drum 3 of the washing machine 99.
  • the sensors 20,21,22,23 of the arrangement 1 are enabled to determine the parameters of the water that is being used before the water is added to the drum 3 where the detergent and the laundry i.e. the load 90 are present.
  • the sensors 20,21,22,23 of the arrangement 1 are enabled to determine the parameters of the water that is mixed with the detergent and exposed to the laundry.
  • the micromachine 10 is fluidly connected to the detergent delivery system 9 and/or to the drum 3 of the washing machine 99.
  • the micromachine 10 is thus enabled to receive detergent solution directly from the detergent delivery system 9 and/or from the drum 3 of the washing machine 99.
  • the sensors 20,21,22,23 of the arrangement 1 are enabled to determine the parameters of the detergent solution that is going to be used, before the detergent solution is added to the drum 3 where the detergent solution is exposed to the laundry i.e. the load 90 and to excess water that may be present in the drum 3.
  • the sensors 20,21,22,23 of the arrangement 1 are enabled to determine the parameters of the detergent solution that is exposed to the laundry i.e. to the load 90 for a given period of time.
  • the present invention also includes the washing machine 99 having the arrangement 1 for determining optimal wash scheme for the load 90 received into the drum 3 of the washing machine 99.
  • the arrangement 1 of the washing machine 99 is as explained hereinabove in relation to Figs. 1 to 4 .
  • the arrangement 1 includes a micromachine 10, one or more sensors 20, and a microcontroller 30.
  • the micromachine 10 has a hearth 12 for receiving a part 91 of the load 90 from the drum 3 and is configured to wash the part 91 prior to washing of the load 90 present in the drum 3.
  • the sensors 20 are positioned around the hearth 12 and are configured to determine one or more parameters relating to characteristics of water used in the washing machine 99, characteristics of detergent solution formed in the washing machine 99, and/or characteristics of the part 91 of the load 90.
  • the microcontroller 30 receives, from the sensors 20, one or more signals indicative of the parameters so determined by the sensors 20, and subsequently determines a wash scheme for the load 90 based on the parameters so determined by the sensors 20.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP17174906.2A 2017-06-08 2017-06-08 Dispositif permettant de déterminer un schéma de lavage optimal pour une charge dans une machine à laver Withdrawn - After Issue EP3412821B1 (fr)

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Application Number Priority Date Filing Date Title
EP17174906.2A EP3412821B1 (fr) 2017-06-08 2017-06-08 Dispositif permettant de déterminer un schéma de lavage optimal pour une charge dans une machine à laver

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Application Number Priority Date Filing Date Title
EP17174906.2A EP3412821B1 (fr) 2017-06-08 2017-06-08 Dispositif permettant de déterminer un schéma de lavage optimal pour une charge dans une machine à laver

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EP3412821A1 true EP3412821A1 (fr) 2018-12-12
EP3412821B1 EP3412821B1 (fr) 2021-01-06

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EP17174906.2A Withdrawn - After Issue EP3412821B1 (fr) 2017-06-08 2017-06-08 Dispositif permettant de déterminer un schéma de lavage optimal pour une charge dans une machine à laver

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140283314A1 (en) * 2011-12-13 2014-09-25 Haier Group Technique R&D Center Washing machine and washing machine thereof
US20150211163A1 (en) * 2014-01-27 2015-07-30 Samsung Electronics Co., Ltd. Washing machine
EP3031969A1 (fr) * 2014-12-09 2016-06-15 LG Electronics Inc. Appareil de séchage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140283314A1 (en) * 2011-12-13 2014-09-25 Haier Group Technique R&D Center Washing machine and washing machine thereof
US20150211163A1 (en) * 2014-01-27 2015-07-30 Samsung Electronics Co., Ltd. Washing machine
EP3031969A1 (fr) * 2014-12-09 2016-06-15 LG Electronics Inc. Appareil de séchage

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