EP4332291A1 - Verfahren und system zur herstellung und durchführung eines wäschetrocknungszyklus - Google Patents

Verfahren und system zur herstellung und durchführung eines wäschetrocknungszyklus Download PDF

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Publication number
EP4332291A1
EP4332291A1 EP23192941.5A EP23192941A EP4332291A1 EP 4332291 A1 EP4332291 A1 EP 4332291A1 EP 23192941 A EP23192941 A EP 23192941A EP 4332291 A1 EP4332291 A1 EP 4332291A1
Authority
EP
European Patent Office
Prior art keywords
drying
laundry
digital image
parameter
housing
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.)
Pending
Application number
EP23192941.5A
Other languages
English (en)
French (fr)
Inventor
Nicola Marino
Alessandra CAROBENE
Michele DEL GATTO
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.)
Candy SpA
Original Assignee
Candy SpA
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 Candy SpA filed Critical Candy SpA
Publication of EP4332291A1 publication Critical patent/EP4332291A1/de
Pending legal-status Critical Current

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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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/04—Signal transfer or data transmission arrangements
    • D06F34/05—Signal transfer or data transmission arrangements for wireless communication between components, e.g. for remote monitoring or control
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • 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
    • D06F2101/04—Quantity, e.g. 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
    • D06F2103/02—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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/56—Remaining operation time; Remaining 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
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F34/32—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress characterised by graphical features, e.g. touchscreens

Definitions

  • the present invention relates to a method and system for preparing and performing a laundry drying cycle by means of a drying machine (or laundry tumble dryer) or laundry washer dryer, in particular a domestic one.
  • Known domestic laundry drying machines comprise:
  • Known laundry washer dryers comprise:
  • the laundry drying process depends, in addition to the initial water or humidity content of the laundry, on the type of fabric or the combination of types of fabrics of the laundry load, the mass or quantity of laundry to be dried, the duration and intensity of the spin, the duration of the ventilation with drying air, the temperature and humidity of the drying air, the flow rate of the drying air and the desired final level of dryness of the laundry.
  • Some of the parameters which affect the drying process cannot be freely chosen or adjusted solely as a function of the drying result, since some ranges of parameters can damage the laundry itself, such as, for example, temperatures or spin speeds which are excessively high for some types of fabrics (wool, delicates).
  • a method for preparing and performing a laundry drying cycle by means of a drying machine, in particular a domestic one comprises:
  • a system for preparing and performing a laundry drying cycle comprising:
  • the method and the system according to the invention allow the user to determine the quantity of laundry to be dried in a quicker and easier manner, and to know the drying duration required to dry the laundry to the desired level of dryness which can be selectable or predetermined, thus avoiding situations of uncertainty and hesitation, and obtaining savings in drying time and energy compared to possible default settings.
  • a method for preparing and performing a laundry washing cycle by means of a drying machine 1, in particular a domestic one comprises:
  • the step of acquiring the digital image 8 can be carried out by a handheld electronic device 17, for example, a smartphone or a tablet computer, provided with digital image acquisition means 19, for example, a digital camera 46 or an optical sensor.
  • the step of acquiring the digital image 8 comprises a step of guiding the user in framing the contour part 9 by means of:
  • the step of acquiring the digital image 8 can comprise a step of displaying (for example, by means of the electronic display 11) instructions 50 of the framing and image acquisition operation to be performed at the moment of displaying the instructions themselves.
  • the step of acquiring the digital image 8 can comprise:
  • the method can further comprise a step of identifying the perimeter edge 5 and the external contour of the housing 2 in the provisional digital image and/or in the digital image 8, by means of an algorithm for identifying contours in digital images, for example by identifying areas of maximum local gradient of an image property.
  • the method can comprise the step of displaying, by means of the electronic display 11, a sequence of teaching illustrations of the steps of (framing and) acquiring the digital image 8 ( Figures 7A, 7B ), positioning the level indicator 12 ( Figure 7C ) and selecting the at least one drying parameter P ( Figure 7D ).
  • the overlapping display of the digital image 8 and the level indicator 12 and the positioning of the level indicator 12 are performed by means of the handheld electronic device 17, advantageously, by means of an electronic touch control display of the handheld electronic device 17.
  • the overlapping display of the digital image 8 and the level indicator 12 comprises displaying the level indicator 12 in the form of a (horizontal) line extending at least within, preferably through, the perimeter edge 5 and/or the reference circle 48 ( Figures 7C , 8C ) and, preferably, displaying an instruction or animation for moving the level indicator 12, for example "up and down", up to the position of the filling level 13.
  • the step of positioning the level indicator 12 comprises a step of confirming the positioning, for example by actuating or touching a positioning confirmation button 52 ( Figure 8D ) displayed by means of the electronic display 11 (of the handheld electronic device 17).
  • a notice prompting the adjustment of the position of the level indicator 12 is displayed.
  • the method comprises the step of automatically determining an estimated filling level in the digital image 8 by analyzing the digital image 8, positioning the level indicator 12 automatically at the estimated filling level, and confirming or modifying the positioning of the level indicator 12 by inserting a command to confirm the level or to modify the level by the user.
  • the step of determining the quantity parameter Q comprises a step of determining the quantity parameter Q as a proportion of a quantity of laundry corresponding to the filling level 13 and a maximum quantity of laundry loadable in the laundry compartment 3.
  • the step of determining the quantity parameter Q comprises the steps of:
  • the determination of the quantity of laundry occurs by means of a predetermined formula depending on a percentage or proportion of filling of the laundry compartment determined as a function of the positioning of the level indicator 12, and depending on the fabric type or fabric types (and presence percentages thereof) selected by the user, and depending on the predetermined volume of the laundry compartment 3 (laundry drum) for the model of drying machine 1.
  • the quantity parameter Q can be expressed for example as an absolute value, for example in kilograms [Kg] or as a proportion of the maximum quantity of laundry loadable into the laundry compartment 3, for example as a percentage (50%) or as a fraction (1/2).
  • the step of selecting (the term selecting also means setting) the at least one drying parameter P comprises displaying, for example by means of the electronic display 11, a value selection menu 53 for each drying parameter P which allows a desired value to be selected or set for the drying parameter P, for example by actuating one or more displayed value selection buttons 54, for example by touch control. Therefore, the method further includes the step of selecting/setting the value of the drying parameter P by actuating the value selection button 54 by the user.
  • the method also includes accessing the value selection menus 53 by actuating the switching button 55 by the user.
  • the value selection menus 53 can comprise a menu for selecting the fabric type ( Figure 9A, 9B ) in which the value selection buttons 54 each indicate a type (combination) of fabric, e.g., cotton, blend, wool, synthetic, delicate.
  • the value selection menus 53 can comprise a menu for selecting the spin speed ( Figures 9C ) in which the value selection button 54 indicates the number of rotations of the laundry compartment 3.
  • the value selection menus 53 can comprise a menu for selecting the final dryness level ( Figures 9D, 9E ) in which the value selection buttons 54 each indicate a different level of dryness (or residual humidity), e.g., extra dry, cupboard dry, iron dry, dry for hanging without ironing.
  • the value selection menus do not display at least one selectable parameter value (for example, spin speed or final dryness level) for at least a second selectable type of fabric (for example, cotton), but incompatible (for example, detrimental) with the first selectable type of fabric. This avoids errors when setting the drying parameters P.
  • a selectable parameter value for example, spin speed or final dryness level
  • a second selectable type of fabric for example, cotton
  • incompatible for example, detrimental
  • the step of selecting the at least one drying parameter P is preferably performed by means of the handheld electronic device 17, for example a smartphone or tablet computer.
  • the step of determining the drying duration D is preferably performed by means of the handheld electronic device 17, for example a smartphone or tablet computer, or by means of a remote electronic device (cloud) 18 in signal communication with the handheld electronic device 17.
  • the determination of the drying duration D comprises calculating the drying duration D by means of a predetermined algorithm as a function of the determined quantity of laundry (dry mass), i.e., the quantity parameter Q, and the selected fabric type or fabric types.
  • the determination of the quantity of laundry (dry mass), i.e., the quantity parameter Q, occurs by means of an algorithm of predetermined formula depending on a percentage or proportion of filling of the laundry compartment determined as a function of the positioning of the level indicator 12, and depending on the fabric type or fabric types (and presence percentages thereof) selected by the user, and depending on the predetermined volume of the laundry compartment 3 (laundry drum) for the model of drying machine 1.
  • the display of the recommended drying program notification occurs by means of the handheld electronic device 17.
  • the recommended drying program notification contains the values of the drying parameters P selected by the user, e.g., fabric type(s), spin speed, final dryness and/or drying temperature, as well as the estimated drying duration D and, possibly, the determined quantity of laundry ( Figure 10C ).
  • the drying parameters P selected by the user e.g., fabric type(s), spin speed, final dryness and/or drying temperature, as well as the estimated drying duration D and, possibly, the determined quantity of laundry ( Figure 10C ).
  • the determined quantity of laundry can be expressed as a numeral value, e.g., "7 Kg" and/or in relative explanatory terms, for example
  • the recommended drying program notification further contains a time saving indication obtained by detecting the quantity of laundry with respect to a predetermined standard drying program.
  • the recommended drying program notification can comprise displaying a modification button ("edit") 57 the actuation of which, for example by touch control by the user, results in displaying a menu for modifying the drying parameters P which allows the insertion of commands for modifying the drying parameters P by the user.
  • edit a modification button
  • the request for confirmation of the execution of the recommended drying program, or of the recommended drying program modified by the user can comprise displaying a start button 56 the actuation of which, for example by touch control by the user, results in executing the drying program by the drying machine 1.
  • the drying program is executed by the drying machine 1 controlled by the electronic control system 16 in signal communication with the handheld electronic device 17, as a function of the drying parameters P selected and displayed.
  • the washing program is terminated, not depending on the determined drying duration D, but upon reaching the final dryness value selected.
  • determining and displaying the drying time D allows per se a better organization of the time of the user, without directly affecting the execution of the laundry drying.
  • the washing program is terminated depending on the determined drying duration D.
  • the washing program is terminated, depending on the determined drying duration D and upon reaching the selected final dryness value (double termination criterion).
  • a system 14 for preparing and performing a laundry drying cycle comprises:
  • the method and the system 14 according to the invention allow the user to determine the quantity of laundry to be dried in a quicker and easier manner, and to know the drying duration required to dry the laundry to the desired level of dryness which can be selectable or predetermined, thus avoiding situations of uncertainty and hesitation, and obtaining savings in drying time and energy compared to possible default settings.
  • the drying machine 1 comprises a drying system with a drying air circuit 25 passing through the laundry compartment 3 (in particular a rotating drum or cylinder), and with conveying means 27, air heating means 29, 34 and, possibly, conveyed air humidity condensation means 30, 33.
  • the drying machine 1 comprises an electric resistor drying circuit 25, in which the drying air 26 is conveyed by means of a fan 27 (actuated by a motor 28), heated by means of an electrical resistor 29 and directed into the laundry compartment 3, for example a rotating drum or cylinder, where, as it passes through the wet laundry, it causes the water contained in the fabrics to evaporate.
  • a fan 27 actuated by a motor 28
  • an electrical resistor 29 directed into the laundry compartment 3, for example a rotating drum or cylinder, where, as it passes through the wet laundry, it causes the water contained in the fabrics to evaporate.
  • the drying air 26 laden with humidity is discharged into the room (open drying circuit) or (in the case of a closed drying circuit) it passes through a heat exchanger 30, where it is cooled, for example, by means of a flow of cold water or fresh air 31 conveyed by means of a second fan (operated preferably but not necessarily by means of the same electric motor 28), so as to extract the humidity therefrom by means of condensation.
  • the dehumidified drying air 26 is then sucked in again by the fan 27, heated by means of the electrical resistor 29 and re-directed into the laundry compartment 3 ( Figure 5 ).
  • the drying air 26 laden with humidity passes through a first (cold) heat exchanger 33 formed by an evaporator of the heat pump, where the air 26 is cooled so as to extract the humidity thereof by condensation.
  • the dehumidified and cooled drying air 26 is then directed into a second (hot) heat exchanger 34 formed by a heat pump condenser, where the air is heated.
  • the dehumidified and heated air is sucked in by means of a fan 27 and directed again into the laundry compartment 3 so as to continue extracting humidity from the laundry.
  • the heat pump further comprises a compressor 35 and an expansion valve 36 ( Figure 6 ).
  • the drying machine 1 is configured as a washer dryer machine and comprises a washing system with a washing tank 37, inside which a washing drum is housed, forming the laundry compartment 3, and which is adapted to contain washing liquid during the laundry washing steps.
  • the washer dryer machine comprises a washing water loading system 38 connectable to the water mains.
  • the loading system 38 can comprise a plurality of pipes extending, for example, from one or more, for example, two, supply solenoid valves 39, 40, directly or through detergent compartments of a detergent tray 41 (optional), up to the washing tank 37.
  • a discharge pipe 42 is connected to the bottom 41' of the washing tank 37, the discharge pipe being with an associated discharge pump 43 which removes the washing liquid from the washing tank 37 and which, together with the supply solenoid valves 39, 40, controls the level of liquid in the washing tank 37.
  • An electrical resistor 44 arranged inside the washing tank 37, in particular at the tank bottom 41', can be provided in the gap between the wall of the washing tank 37 and the laundry drum 3, to heat the washing liquid contained in the washing tank 37.
  • the laundry drum (laundry compartment 3) can be actuated in rotation by means of an electric motor 45.
  • the operation of the drying machine 1 is controlled by the electronic control system 16 which allows the selection of washing and/or drying programs (more generally: treatment programs) and parameters thereof.
  • the electronic control unit 16 drives the various components of the drying machine 1 to dry and possibly wash the laundry.
  • a digital camera 46 or an optical detector form part of the handheld electronic device 17, for example a smartphone or a tablet computer, and are configured to perform the step of acquiring the digital image 8 described with reference to the method.
  • the framing aid means 20 for framing in the digital image 8 at least one contour part 9 of the drying machine 1, including the perimeter edge 5 of the loading opening 4, form part of the handheld electronic device 17, for example a smartphone or a tablet computer, and are configured to perform the step of guiding the user in framing the contour part 9 described with reference to the method.
  • the framing aid means 20 can comprise means for identifying the perimeter edge 5 and the external contour of the housing 2 in the provisional digital image and/or in the digital image 8, by means of an algorithm for identifying contours in digital images, for example by identifying areas of maximum local gradient of an image property.
  • the electronic display 11 is advantageously part of the handheld electronic device 17.
  • the command insertion means 21 form part of the handheld electronic device 17 and advantageously comprise an electronic touch control display 11.
  • the command insertion means 21 are configured to perform and allow displaying and positioning the level indicator 12 described with reference to the method.
  • the command insertion means 21 are configured to perform and allow the selection of the (values of the) drying parameters P described with reference to the method.
  • the quantity determination means 22 can be implemented by the handheld electronic device 17 or, alternatively, by the remote electronic device (cloud) 18 in signal communication with the handheld electronic device 17.
  • the quantity determination means 22 are configured to determine the quantity parameter Q by means of the step or steps described with reference to the method.
  • the duration determination means 23 can be implemented by the handheld electronic device 17 or, alternatively, by the remote electronic device (cloud) 18 in signal communication with the handheld electronic device 17.
  • the duration determination means 23 are configured to determine the drying duration D by means of the step or steps described with reference to the method.
  • the notification means 24 are implemented by the handheld electronic device 17 and are configured to generate the recommended drying program notification according to the steps described with reference to the method.
  • the electronic control system 16 of the drying machine 1 and the handheld electronic device 17 can communicate directly (for example via Bluetooth and/or NFC) or alternatively by means of a home WLAN network, or alternatively indirectly by means of the remote electronic device (cloud) 18 in data communication with the handheld electronic device 17 and with a home WLAN network in communication with the electronic control system 16 of the laundry drying machine 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP23192941.5A 2022-09-01 2023-08-23 Verfahren und system zur herstellung und durchführung eines wäschetrocknungszyklus Pending EP4332291A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102022000017964A IT202200017964A1 (it) 2022-09-01 2022-09-01 Metodo e sistema per la preparazione e l’esecuzione di un ciclo di asciugatura di biancheria

Publications (1)

Publication Number Publication Date
EP4332291A1 true EP4332291A1 (de) 2024-03-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP23192941.5A Pending EP4332291A1 (de) 2022-09-01 2023-08-23 Verfahren und system zur herstellung und durchführung eines wäschetrocknungszyklus

Country Status (2)

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EP (1) EP4332291A1 (de)
IT (1) IT202200017964A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130020376A (ko) * 2011-08-19 2013-02-27 엘지전자 주식회사 휴대용 단말기
DE102013210996A1 (de) * 2013-06-13 2014-12-18 BSH Bosch und Siemens Hausgeräte GmbH Analysieren von Wäschestücken
US20210148034A1 (en) * 2019-11-15 2021-05-20 Lg Electronics Inc. Home appliance and method for controlling home appliance

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130020376A (ko) * 2011-08-19 2013-02-27 엘지전자 주식회사 휴대용 단말기
DE102013210996A1 (de) * 2013-06-13 2014-12-18 BSH Bosch und Siemens Hausgeräte GmbH Analysieren von Wäschestücken
US20210148034A1 (en) * 2019-11-15 2021-05-20 Lg Electronics Inc. Home appliance and method for controlling home appliance

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Publication number Publication date
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