WO2018162081A1 - Procédé de fonctionnement d'un sèche-linge ayant un filtre à peluches - Google Patents

Procédé de fonctionnement d'un sèche-linge ayant un filtre à peluches Download PDF

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Publication number
WO2018162081A1
WO2018162081A1 PCT/EP2017/055696 EP2017055696W WO2018162081A1 WO 2018162081 A1 WO2018162081 A1 WO 2018162081A1 EP 2017055696 W EP2017055696 W EP 2017055696W WO 2018162081 A1 WO2018162081 A1 WO 2018162081A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
laundry dryer
drying
laundry
operating
Prior art date
Application number
PCT/EP2017/055696
Other languages
English (en)
Inventor
Hafize OZKILINC
Onur ERCAN
Erdem Kara
Mert GUNEY
Mustafa CENGIZ
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to PCT/EP2017/055696 priority Critical patent/WO2018162081A1/fr
Priority to TR2018/02915A priority patent/TR201802915A2/tr
Publication of WO2018162081A1 publication Critical patent/WO2018162081A1/fr

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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
    • 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
    • D06F58/45—Cleaning or disinfection of machine parts, e.g. of heat exchangers or filters
    • 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
    • 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
    • D06F2103/28—Air properties
    • D06F2103/36—Flow or velocity
    • 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
    • D06F2105/16—Air properties
    • D06F2105/24—Flow or velocity
    • 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
    • D06F2105/30—Blowers
    • 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
    • D06F2105/34—Filtering, e.g. control of lint removal devices
    • 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
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F58/20—General details of domestic 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements
    • 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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements
    • 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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the present invention relates to a method of operating a laundry dryer comprising a filter that holds the lint and fluff particles dragged by the drying air.
  • Closed cycle laundry dryers generally comprise a laundry treatment chamber wherein the laundry to be dried is placed, for instance in a drum arranged in it, and an air circulation duct connected to the laundry treatment chamber for recirculating and recycling the air used to dry the damp laundry in the treatment chamber removing the moisture from it. More in detail, before being reintroduced in the treatment chamber, the exhaust air exiting the treatment chamber is cooled and the water vapor contained in it is removed by condensation and the dried air is subsequently heated and fed back into the treatment chamber with low relative humidity rate and at high temperature.
  • the laundry dryers available in the market generally comprise, arranged on the air circulation duct, a heat exchanger, which typically uses ambient air as coolant, and a heater, or a heat pump, which uses a refrigerant fluid as coolant and which includes an evaporator and a condenser.
  • a filter is generally disposed on the air circulation duct, upstream of the heat exchanger or the evaporator, in order to trap the lint particles carried by the process air before they can reach the heat exchanger or the evaporator.
  • the filter needs to be often cleaned.
  • the filter can be removable so that the cleaning operation can be carried out manually by the user, generally washing it, or can be self-cleaning so that the cleaning operation is carried out automatically by means of a cleaning device.
  • Such cleaning device usually comprises one or more nozzles for spraying a washing liquid onto the face of the filter where the lint accumulates.
  • EP3138953 describes a dryer having a lint filter and a cleaning device providing the automatic cleaning of the filter by rinsing it with condensed water collected to this aim in a receptacle.
  • the washing liquid used to rinse the filter and accumulating on metal components of the dryer can provoke corrosion problems.
  • the aim of the present invention is to provide a method of operating a laundry dryer having a lint filter which solves the above mentioned drawbacks, ensuring a high efficiency of the dryer also after the cleaning of the filter and avoiding the onset of corrosion problems.
  • the method of operating a laundry dryer according to the invention comprises, beside a step of rinsing the filter with a washing liquid in order to remove the lint/fluff trapped on it, a step of drying the filter following the step of rinsing the filter.
  • the cycle fan promoting the process air recirculation through the air recirculation duct is operated so that process air is recirculated and the washing liquid residuals are dried by it. In this manner the risk of rust formation or corrosion as well as the formation of permanent lint/fluff residuals on the filter is avoided and the overall efficiency of the dryer is improved.
  • process air is recirculated through the air circulation duct for a period of time of at least 3 minutes and in a further embodiment, it has a temperature of at least 40°C. In this manner the duration and the efficacy of the filter drying step is optimized.
  • the laundry dryer is a heat pump laundry dryer comprising a heat pump having a compressor for compressing a refrigerant fluid
  • the compressor of the heat pump is operated in order to dry heat the process air recirculating in the air circulation duct and ensure a quick drying of the filter.
  • a ventilation step is envisaged aimed to decrease the temperature of the air inside the laundry treatment chamber below a preset safety value, so that the user can securely open the door and access the treatment chamber without any burn risk.
  • the step of drying the filter is performed automatically by the laundry dryer at the end of the filter rinsing step.
  • the filter rinsing step is performed automatically by the laundry dryer, preferably at the end of every drying cycle, so that the risk that the user may forget to clean the filter is avoided. In this manner the filter is maintained cleaned and dried for the future drying cycle, improving the efficiency of the laundry dryer.
  • the step of rinsing the filter is performed manually by the user and, in a version of this embodiment, the step of drying the filter is performed by the laundry dryer upon receiving a pre-set input from the user, for instance through an user interface of the laundry dryer.
  • Figure 1 – is the schematic view of a heat pump laundry dryer.
  • the laundry dryer 1 further comprises an air circulation duct 4 connected to the laundry treatment chamber 3 for recirculating the process air PA used to dry the laundry placed in the treatment chamber 3, removing the moisture from it, a cycle fan 5 which is located in the air circulation duct 4 and provides the circulation of the process air PA and one or more filters 6 arranged in the air circulation duct 4 to collect lint/fluff carried by the process air PA.
  • the laundry dryer 1 illustrated in the attached schematic drawing comprises a heat pump, which uses a refrigerant fluid as coolant to promote the condensation of the water vapor contained in the process air PA before the latter is reintroduced in the treatment chamber 3 and it comprises an evaporator 7, a condenser 8 and a compressor (not illustrated) for compressing the refrigerant fluid.
  • a filter 6 is provided upstream of the evaporator 7.
  • the laundry dryer 1 operatable with the present method could however comprise a filter arranged in a different position in the air circulation duct 4, as for instance right below the access door 9 to the laundry treatment chamber 3, or could comprise more than one filter without departing from the scope of protection defined by the present application.
  • the method of operating the laundry dryer 1 comprises a step of rinsing the filter 6 with a washing liquid in order to remove the lint/fluff trapped on it.
  • the method further comprises a step of drying the filter 6 following the step of rinsing the filter 6 during which step of drying the filter 6 the cycle fan 5 is operated and process air PA is recirculated through the air circulation duct 4 for drying the washing liquid residuals.
  • the efficiency of the laundry dryer 1 is improved, since for the whole subsequent drying cycle, which could be started also right after the finishing of a step of rinsing the filter 6, the drying function of the process air PA is completely utilized to remove moisture from the laundry and not partially wasted to remove washing liquid residuals from the filter 6 and the other components in the air circulation duct 4.
  • process air PA is recirculated through the air circulation duct 4 for a period of time of at least 3 minutes and preferably for 5 minutes or more. It has been verified that the recirculation of process air PA for this period of time is in fact sufficient to ensure a proper removal of the washing liquid residuals.
  • air PA recirculating through the air circulation duct 4 has a temperature of at least 40°C and preferably of at least 44°C. This ensures that the washing liquid residuals can be removed in a relatively short period of time, hence optimizing the energy consumption of the laundry dryer 1.
  • the laundry dryer 1 is a heat pump laundry dryer comprising a compressor, as above specified, during the step of drying the filter 6 the compressor of the heat pump is operated. This ensures that the process air PA recirculating is heated and dried, so that the duration of the step of drying the filter 6 can be maintained within a preferred time period.
  • the method of the invention further comprises a ventilation step following the step of drying the filter 6 during which the temperature inside the laundry treatment chamber 3 is decreased below a preset safety temperature value.
  • the ventilation step can be for instance performed by operating the cycle fan 5 without activating the heater and/or the compressor of the laundry dryer 1 or it can be performed by operating a dedicated cooling fan (not illustrated).
  • the ventilation step allows to relatively quickly decrease the temperature of the air inside the laundry treatment chamber 3 below a preset value which is considered secure to avoid health hazard for the user.
  • the ventilation step moreover ensures that the access to the laundry treatment chamber 3 can be safely allowed to the user without the need to wait for an excessive period of time after the step of drying the filter 6.
  • the method further comprises a step of unlocking the door 9 to allow the latter to be opened by the user once the ventilation step is over, i.e. once the temperature in the laundry treatment chamber 6 has reached a value below the preset safety temperature value.
  • the laundry dryer 1 comprises a control unit which controls the operation of the laundry dryer 1 and the step of drying the filter 6 is performed automatically at the end of the step of rinsing the filter 6 by means of the control unit which operates the cycle fan 5.
  • the step of drying the filter 6 is preferably automatically performed after each step of rinsing the filter 6. In this manner the step of drying the filter 6 does not depend on the user and it is hence performed regularly ensuring a better efficiency and durability of the laundry dryer 1.
  • the laundry dryer 1 comprises a cleaning device having at least one nozzle 10 connected to a supply of washing liquid 11 to spray the washing liquid onto the filter 6, and in particular onto the face of it whereon the lint accumulates, and the step of rinsing the filter 6 is performed automatically by means of the control unit.
  • the supply of washing liquid 11 is a container where the condensed water is collected to be reutilized for instance for cleaning the filter 6.
  • the control unit commands the supply of washing liquid to the nozzle or nozzles 10, for instance by operating a dedicated pump 12 or by opening a dedicated valve.
  • the step of rinsing the filter 6 is automatically performed at the end of each drying cycle by means of the control unit, which commands the supply of washing liquid to the nozzle or nozzles 10 as above specified. In this manner optimal functioning conditions for the laundry dryer 1 are ensured at every drying cycle, removing lint/fluff particles from the filter 6 and drying the filter 6 at the end of every drying cycle.
  • the step of rinsing the filter 6 is performed manually by the user.
  • the filter 6 is removably installed in a location of the air circulation duct 4 easily accessible by the user, so that the latter can remove and clean the filter 6, in particular by washing it.
  • the user removes the filter 6, washes it and subsequently reinstalls it in its location on the air circulation duct 4.
  • the step of drying the filter 6 is performed by means of the control unit which operates the cycle fan 5 upon receiving a pre-set input from the user.
  • the control unit which operates the cycle fan 5 upon receiving a pre-set input from the user.
  • the user after having reinstalled the filter 6 in its location on the air circulation duct 4 upon washing it, restart the laundry dryer 1, if necessary, and provides a pre-set input in order to command the performing of the step of drying the filter 6.
  • the pre-set input can be provided by the user by means of a command on the user interface of the laundry dryer 1.
  • the user could, to this aim, press a specific button on the control panel of the laundry dryer or use a rotating knob to select a preset command which allows the step of drying the filter to be started.
  • the method of operating the laundry dryer 1 according to the present invention allows therefore to operate the laundry dryer 1 constantly in its full functioning conditions. Moreover it prevents corrosion and rust formations problem in the metal components of the laundry dryer 1 arranged in the air circulation duct 4 and that could be impinged by the washing liquid used to rinse the filter 6.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

Cette invention concerne un procédé de fonctionnement d'un sèche-linge (1) ayant une chambre de traitement de linge (3) dans laquelle le linge à sécher est placé, un conduit de circulation d'air (4) relié à la chambre de traitement de linge (3) pour faire recirculer l'air de traitement (PA) utilisé pour sécher le linge placé dans la chambre de traitement (3), un ventilateur à cycle (5) qui est situé dans le conduit de circulation (4) et assure la circulation de l'air de traitement (PA) et un filtre (6) disposé dans le conduit de circulation d'air (4) pour collecter les peluches transportées par l'air de traitement (PA), le procédé comprenant une étape de rinçage du filtre (6) avec un liquide de lavage afin d'éliminer les peluches piégées sur celui-ci.
PCT/EP2017/055696 2017-03-10 2017-03-10 Procédé de fonctionnement d'un sèche-linge ayant un filtre à peluches WO2018162081A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2017/055696 WO2018162081A1 (fr) 2017-03-10 2017-03-10 Procédé de fonctionnement d'un sèche-linge ayant un filtre à peluches
TR2018/02915A TR201802915A2 (tr) 2017-03-10 2018-03-01 Bi̇r hav fi̇ltresi̇ne sahi̇p bi̇r çamaşir kurutucunun çaliştirilmasi i̇çi̇n bi̇r yöntem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/055696 WO2018162081A1 (fr) 2017-03-10 2017-03-10 Procédé de fonctionnement d'un sèche-linge ayant un filtre à peluches

Publications (1)

Publication Number Publication Date
WO2018162081A1 true WO2018162081A1 (fr) 2018-09-13

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PCT/EP2017/055696 WO2018162081A1 (fr) 2017-03-10 2017-03-10 Procédé de fonctionnement d'un sèche-linge ayant un filtre à peluches

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TR (1) TR201802915A2 (fr)
WO (1) WO2018162081A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3674475A1 (fr) * 2018-12-28 2020-07-01 Whirlpool Corporation Livraison de condensate supplémentaire avec un élément de drainage encliquetable
CN114059260A (zh) * 2020-07-31 2022-02-18 青岛海尔滚筒洗衣机有限公司 洗干一体机
EP4077793A4 (fr) * 2019-12-17 2023-12-06 LG Electronics Inc. Appareil de traitement de linge et procédé de commande d'appareil de traitement de linge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001272165A (ja) * 2000-03-29 2001-10-05 Matsushita Seiko Co Ltd 洗浄フィルター乾燥装置
EP2669417A1 (fr) * 2012-05-29 2013-12-04 Electrolux Home Products Corporation N.V. Machine à laver/sécher avec une pompe à chaleur
US20130318813A1 (en) * 2011-04-05 2013-12-05 Sangwook Hong Laundry machine and method for cleaning lint filter of laundry machine
EP3015593A1 (fr) * 2014-10-28 2016-05-04 LG Electronics Inc. Appareil de traitement du linge
EP3138953A1 (fr) 2015-09-07 2017-03-08 Arçelik Anonim Sirketi Sèche-linge comprenant un filtre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001272165A (ja) * 2000-03-29 2001-10-05 Matsushita Seiko Co Ltd 洗浄フィルター乾燥装置
US20130318813A1 (en) * 2011-04-05 2013-12-05 Sangwook Hong Laundry machine and method for cleaning lint filter of laundry machine
EP2669417A1 (fr) * 2012-05-29 2013-12-04 Electrolux Home Products Corporation N.V. Machine à laver/sécher avec une pompe à chaleur
EP3015593A1 (fr) * 2014-10-28 2016-05-04 LG Electronics Inc. Appareil de traitement du linge
EP3138953A1 (fr) 2015-09-07 2017-03-08 Arçelik Anonim Sirketi Sèche-linge comprenant un filtre

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3674475A1 (fr) * 2018-12-28 2020-07-01 Whirlpool Corporation Livraison de condensate supplémentaire avec un élément de drainage encliquetable
US11008696B2 (en) 2018-12-28 2021-05-18 Whirlpool Corporation Supplemental condensate delivery system having a snap-in drain member
US11542654B2 (en) 2018-12-28 2023-01-03 Whirlpool Corporation Supplemental condensate delivery system having a snap-in drain member
EP4077793A4 (fr) * 2019-12-17 2023-12-06 LG Electronics Inc. Appareil de traitement de linge et procédé de commande d'appareil de traitement de linge
CN114059260A (zh) * 2020-07-31 2022-02-18 青岛海尔滚筒洗衣机有限公司 洗干一体机

Also Published As

Publication number Publication date
TR201802915A2 (tr) 2018-09-21

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