EP3234255A1 - Wäschetrocknervorrichtung mit filtersystem - Google Patents

Wäschetrocknervorrichtung mit filtersystem

Info

Publication number
EP3234255A1
EP3234255A1 EP14823954.4A EP14823954A EP3234255A1 EP 3234255 A1 EP3234255 A1 EP 3234255A1 EP 14823954 A EP14823954 A EP 14823954A EP 3234255 A1 EP3234255 A1 EP 3234255A1
Authority
EP
European Patent Office
Prior art keywords
filter
nozzle
drying apparatus
laundry drying
liquid
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
EP14823954.4A
Other languages
English (en)
French (fr)
Other versions
EP3234255B1 (de
Inventor
Nicola Reid
Giuseppe Rossi
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Publication of EP3234255A1 publication Critical patent/EP3234255A1/de
Application granted granted Critical
Publication of EP3234255B1 publication Critical patent/EP3234255B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/10Drying cabinets or drying chambers having heating or ventilating means
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • D06F58/22Lint collecting arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F25/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 

Definitions

  • the invention relates to a laundry drying apparatus, in particular a dryer or washer-dryer.
  • a laundry drying apparatus - in the following description also denoted in brief "apparatus” - comprises a cabinet and a laundry storing compartment arranged within the cabinet.
  • An air channel is arranged within the cabinet and adapted to guide drying air from at least one air outlet of the laundry storing compartment.
  • the air o channel is adapted to guide the drying air to at least one air inlet of the laundry storing compartment.
  • the apparatus is providing a closed loop air channel such that the laundry storing compartment and the air channel form a closed loop for circulating the drying air.
  • the apparatus comprises a filter system in order to trap lint removed from laundry during a drying cycle.
  • the filter system is arranged within the air channel downstream the laundry storing compartment.
  • the upstream arrangement means that the filter system is arranged between the laundry storing compartment and the at least one heat exchanger.
  • the heat exchanger arranged in the air channel is an evaporator of a heat pump system of the apparatus and in an alternative embodiment the heat exchanger is a drying air/ambient cooling air heat exchanger of the apparatus which is used e.g. in a condensation dryer for cooling process air.
  • the apparatus comprises a filter wet cleaning unit which has a nozzle for supply liquid in order to wash the first filter.
  • the nozzle is arranged such that the liquid flowing out of the nozzle is directed towards the front surface of the first filter.
  • the filter wet cleaning unit is adapted to preferably provide an automatic filter cleaning thus avoiding or reducing requirement for manual filter cleaning by the user over many drying cycles.
  • the first filter is cleaned or washed very efficiently by directing liquid flowing out of the nozzle towards the front surface of the first filter.
  • the front surface is particularly the side of the first filter where the drying air is entering the first filter. Since lint, fluff and other particles are trapped preferably at the front surface, the first filter can be cleaned/washed efficiently in a very short time using the wet cleaning unit.
  • the nozzle has one or more outlets for supplying liquid.
  • the at least one outlet is arranged above and/or upstream of the first filter.
  • the laundry storing compartment is a drum or a rotatable drum or a drum that is rotatable around a (or a substantially) horizontal axis.
  • the apparatus does not comprise any additional lint filter apart from the filter system.
  • any additional lint filter components to arrange within the cabinet can be avoided.
  • the first filter is configured and arranged relative to the nozzle in such a manner that the second filter is completely or substantially screened or protected from contact with liquid flowing out of the nozzle.
  • a first filter type which is adapted for being wet-cleaned after every drying cycle and a second filter type adapted to provide filtering function over a high number of drying cycles. This supports the efficiency of the cleaning process and the user-friendliness of the filter system.
  • the gap is dimensioned such that the first filter is adapted to screen or to shield the second filter from contact with liquid flowing out of the nozzle, even in case some of the liquid passes from the front side of the first filter to the rear side of the first filter. Due to the gap the liquid can flow down in the gap without contacting the surface of the second filter. In case the filters essentially do not abut to each other, they may abut at an edge, for example at the upper edge. However then the gap or clearance is provided at the other or remaining areas. While providing the gap, the filters are preferably arranged in close neighborhood or arranged adjacent to each other such that the filter system is designed in a space-saving manner.
  • the nozzle has at least one of the following features: the nozzle is adapted to distribute the liquid over or essentially over the horizontal width of the front surface of the first filter,
  • the air channel of the apparatus comprises a channel opening wherein the first and second filters are removable from the air channel through the channel opening.
  • the cabinet comprises a cabinet opening in such a manner that the first and second filters are removable from the air channel through the channel opening and the cabinet opening. In this regard, the filters may be removed one after the other.
  • the filter system and the first and second filters are placed in their respective operational positions in the apparatus such that the nozzle of the filter wet cleaning unit directs the liquid towards the first filter.
  • the second filter is arranged, in relation to the nozzle, behind the first filter in a manner such that the first filter forms a screen adapted to prevent liquid flowing out of the nozzle to reach onto the surface of the second filter.
  • the first filter thus is acting in an additional function as a means for protecting the second filter against unnecessary or disturbing liquid.
  • the apparatus comprises a heat pump system.
  • the heat exchanger is a first heat exchanger and a second heat exchanger is provided for heating the drying air.
  • the filter system could be applied to an apparatus having a heat pump function, in 5 particular a heat pump dryer or heat pump washer-dryer.
  • the at least one filter alignment element effects accurate alignment of the filter system within the air channel. Further, this alignment causes automatically the desired relative arrangement between the filter system and the nozzle when the filter system is inserted into the operational position 5 within the air channel. This ensures a correct positioning between the filter system and the nozzle hereby supporting an efficient cleaning of the first filter.
  • the gap (respectively air gap) between the first filter and second filter has at 5 least one of the following features:
  • the gap is wedge-shaped or approximately wedge-shaped.
  • the rear surface of the second filter is particularly defined as a surface pointing to the exit direction of drying air flowed through the first filter.
  • the front surface of the second filter is particularly defined as a surface facing the rear surface of the first filter and/or as a surface oriented towards the inflowing air to be filtered by the second 5 filter.
  • the rear surface of the first filter faces the second filter, in particular the front surface of the second filter.
  • the support structure is provided by a filter unit of the filter system.
  • the filter unit preferably comprises a door or lid adapted to close an opening of the o air channel of the apparatus.
  • the first and second supporting positions in the support structure of the filter system are aligned such that when the first filter and the second filter are in their respective operational position, the first and second filters are oriented inclined to each other, and
  • the support structure of the filter system comprises one or more of the following features:
  • At least one latch or clip or at least one clamping arrangement for securing the first filter, the second filter or the first and second filter in the respective operational position within the filter system
  • low-cost parts provide a stable structure of the filter system and a stable position of the filter system relative to the air channel.
  • the first filter has a curvature.
  • a first surface 5 of the first filter through which the drying air to be cleaned enters has a curvature.
  • Such a curvature provides sufficient dispersion of the supplied cleaning liquid across the whole first filter surface to be cleaned.
  • the curvature is adapted to compensate potential production tolerances and subsequently potential misalignments between the filter wet cleaning unit (in particular its nozzle) and the first filter.
  • the curvature extends preferably along a vertical section,
  • the first filter is supported by the support structure which comprises a frame or grill for imposing the curvature to the first filter.
  • the support structure which comprises a frame or grill for imposing the curvature to the first filter.
  • the at least one filter alignment element is adapted to align accurately the filter system and subsequently the first filter relative to the nozzle when the filter system is inserted into the operational position within or at the air channel.
  • the at least one filter alignment element may be arranged at the filter system in combination with the liquid guiding element.
  • any feature of any laundry drying apparatus and/or filter system disclosed in the claims and/or the description and/or the figures may be applied to this laundry drying apparatus (having a filter alignment element or liquid guiding element) individually or in any 5 arbitrary combination or sub-combination.
  • Fig. 1 a schematic view of a laundry treatment apparatus
  • Fig. 2 a perspective view of a part of a filter system having a first filter and a second filter
  • Fig. 6 a perspective front view of the filter system according to Fig. 9,
  • Fig. 7 a perspective rear view of the filter system according to Fig. 9,
  • Fig. 10c the laundry drying apparatus according to Fig. 10a, showing the extraction of the filter system out of the apparatus in a further embodiment
  • Fig. 12 a top view of the filter system according to Fig. 11,
  • the drying air flow A within the apparatus 2 is guided through a compartment 18 of the home appliance 2, i.e. through a compartment for receiving articles to be treated, e.g. a drum 18.
  • the articles to be treated are laundry 19, textiles or the like.
  • the drying air flow is indicated by arrows A in Fig. 1 and is driven by a drying air blower 8.
  • a drying air5 channel 20 guides the drying air flow A outside the drum 18 and includes different
  • the horizontal width 74 extends parallel to a horizontal direction 75, whereas the horizontal direction 75 extends perpendicular to the vertical direction 76.
  • a surface direction 77 of the first filter 54 is inclined relative to the vertical direction 76.
  • the horizontal direction 75 and the surface direction 77 span the surface plane of the first filter 54, particularly its front surface 64.
  • the design or shape of the liquid guiding element 86 is adapted to achieve an efficient distribution of the liquid across the front surface 64 to clean the first filter 54 from top to bottom.
  • the liquid guiding element has an elongated vane shape (Fig. 6, Fig. 7).
  • the liquid guiding element 86 is adapted to laterally expand the width of the nozzle 72 such that the lateral width (which extends along a lateral direction 96) of a liquid curtain exiting the nozzle outlet 78 is expanded in lateral width thus enabling a uniform cleaning of the first filter 54, preferably along its complete lateral width along the lateral direction 96.
  • Fig. 10b shows the filter unit 59 according to Fig. 10a but being in a partially extracted position relative to the air channel 20.
  • the air channel 20 is opened at the channel opening 98.
  • the filter unit 59 can be extracted and again be inserted by a swing-like movement or a rotational movement.
  • Fig. 10c shows a further embodiment, according to which the filter unit 59 is extracted from the air channel 20 by making a linear movement. Insertion of this filter unit 59 into the channel opening 98 is again made by a linear movement.
  • Fig. 13 shows a deflecting wall 118 being part of the support structure 58.
  • the curved surface of the wall 118 supports guiding the drying air towards the first heat exchanger 10 and thereby reducing the flow resistance. Additionally the wall 118 guides the supplied liquid towards the hole 116 for draining the liquid out of channel 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Drying Of Solid Materials (AREA)
EP14823954.4A 2014-12-16 2014-12-16 Wäschetrocknervorrichtung mit filtersystem Active EP3234255B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/078012 WO2016095970A1 (en) 2014-12-16 2014-12-16 Laundry drying apparatus with a filter system

Publications (2)

Publication Number Publication Date
EP3234255A1 true EP3234255A1 (de) 2017-10-25
EP3234255B1 EP3234255B1 (de) 2019-05-15

Family

ID=52282700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14823954.4A Active EP3234255B1 (de) 2014-12-16 2014-12-16 Wäschetrocknervorrichtung mit filtersystem

Country Status (4)

Country Link
EP (1) EP3234255B1 (de)
CN (1) CN107002343B (de)
AU (1) AU2014414436B2 (de)
WO (1) WO2016095970A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015111452A1 (de) * 2015-07-15 2017-01-19 Miele & Cie. Kg Wäschetrockner
EP3282050B1 (de) * 2016-08-10 2019-05-15 Whirlpool Corporation Wartungsfreier trockner mit mehreren selbstreinigenden flusenfiltern
US10087569B2 (en) 2016-08-10 2018-10-02 Whirlpool Corporation Maintenance free dryer having multiple self-cleaning lint filters
US10519591B2 (en) 2016-10-14 2019-12-31 Whirlpool Corporation Combination washing/drying laundry appliance having a heat pump system with reversible condensing and evaporating heat exchangers
US10738411B2 (en) 2016-10-14 2020-08-11 Whirlpool Corporation Filterless air-handling system for a heat pump laundry appliance
US10502478B2 (en) 2016-12-20 2019-12-10 Whirlpool Corporation Heat rejection system for a condenser of a refrigerant loop within an appliance
PL3562985T3 (pl) * 2016-12-29 2021-09-20 Electrolux Appliances Aktiebolag Suszarka do prania zawierająca zespół filtra i sposób czyszczenia zespołu filtra
PL3562987T3 (pl) * 2016-12-29 2022-03-21 Electrolux Appliances Aktiebolag Suszarka do prania zawierająca zespół filtra i sposób czyszczenia zespołu filtra
EP3562988B1 (de) * 2016-12-29 2022-02-09 Electrolux Appliances Aktiebolag Wäschetrockner mit einer filteranordnung und verfahren zur reinigung einer filteranordnung
WO2018121870A1 (en) * 2016-12-29 2018-07-05 Electrolux Appliances Aktiebolag A laundry dryer comprising a filter assembly and a method to clean a filter assembly
US11047085B2 (en) 2016-12-29 2021-06-29 Electrolux Appliances Aktiebolag Laundry dryer comprising a filter assembly and a method to clean a filter assembly
IT201700021434A1 (it) * 2017-02-24 2018-08-24 S P M Eng S R L Gruppo filtrante dell’aria di una macchina di trattamento di biancheria
US10544539B2 (en) 2017-02-27 2020-01-28 Whirlpool Corporation Heat exchanger filter for self lint cleaning system in dryer appliance
US10514194B2 (en) 2017-06-01 2019-12-24 Whirlpool Corporation Multi-evaporator appliance having a multi-directional valve for delivering refrigerant to the evaporators
US10718082B2 (en) 2017-08-11 2020-07-21 Whirlpool Corporation Acoustic heat exchanger treatment for a laundry appliance having a heat pump system
WO2019043965A1 (ja) * 2017-09-01 2019-03-07 シャープ株式会社 衣類処理装置
US11015281B2 (en) 2017-09-26 2021-05-25 Whirlpool Corporation Laundry appliance having a maintenance free lint removal system
EP3743552A1 (de) * 2018-01-26 2020-12-02 Electrolux Professional AB (publ) Wäschetrockner
DE102018208559A1 (de) * 2018-05-30 2019-12-05 BSH Hausgeräte GmbH Filtervorrichtung für eine Wäschebehandlungsmaschine und Wäschebehandlungsmaschine mit einer solchen
DE102019210546A1 (de) * 2019-07-17 2021-01-21 BSH Hausgeräte GmbH Haushaltsgerätefilter und Haushaltsgerät damit

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DE19705616A1 (de) * 1997-02-14 1998-08-20 Miele & Cie Flusenfiltereinrichtung für einen Wäschetrockner
KR100700793B1 (ko) * 2004-12-10 2007-03-27 엘지전자 주식회사 건조 겸용 세탁기의 린트 필터 어셈블리
KR20060066970A (ko) * 2004-12-14 2006-06-19 삼성전자주식회사 의류건조기
KR100531335B1 (ko) * 2005-02-25 2005-11-29 엘지전자 주식회사 세탁 장치의 운전 방법
KR101186159B1 (ko) * 2006-01-20 2012-10-02 삼성전자주식회사 의류건조기
DE102007060854A1 (de) * 2007-12-18 2009-06-25 BSH Bosch und Siemens Hausgeräte GmbH Reinigungsvorrichtung für ein mit Flusen beladenes Bauteil in einem Hausgerät sowie Hausgerät und Verfahren zum Reinigen eines mit Flusen beladenen Bauteils
DE102008041998A1 (de) * 2008-09-11 2010-03-18 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit einem Flusenfilter und einer Reinigungsvorrichtung
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Also Published As

Publication number Publication date
EP3234255B1 (de) 2019-05-15
WO2016095970A1 (en) 2016-06-23
CN107002343A (zh) 2017-08-01
AU2014414436A1 (en) 2017-05-18
CN107002343B (zh) 2020-03-10
AU2014414436B2 (en) 2020-06-25

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