EP2333148B1 - Verfahren zum Reinigen einer Prozessluft eines Wäschetrocknungsgeräts und Wäschetrocknungsgerät - Google Patents

Verfahren zum Reinigen einer Prozessluft eines Wäschetrocknungsgeräts und Wäschetrocknungsgerät Download PDF

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Publication number
EP2333148B1
EP2333148B1 EP10190076.9A EP10190076A EP2333148B1 EP 2333148 B1 EP2333148 B1 EP 2333148B1 EP 10190076 A EP10190076 A EP 10190076A EP 2333148 B1 EP2333148 B1 EP 2333148B1
Authority
EP
European Patent Office
Prior art keywords
lint
process air
lint filter
filter
retaining
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.)
Not-in-force
Application number
EP10190076.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2333148A2 (de
EP2333148A3 (de
Inventor
Günter Steffens
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL10190076T priority Critical patent/PL2333148T3/pl
Publication of EP2333148A2 publication Critical patent/EP2333148A2/de
Publication of EP2333148A3 publication Critical patent/EP2333148A3/de
Application granted granted Critical
Publication of EP2333148B1 publication Critical patent/EP2333148B1/de
Not-in-force 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements

Definitions

  • the invention relates to a method for cleaning a process air flow of a laundry drying apparatus during a drying operation by means of at least one lint filter, wherein the process air stream is passed through a plurality of lint filters, wherein at least one lint filter for retaining hair and at least one other lint filter for retaining short-fiber lint is set up and a clothes drying device, which is set up to carry out the method.
  • a lint filter for a clothes dryer e.g. a washer-dryer or a tumble dryer
  • a process air duct of the laundry dryer to retain from a load laundry or textiles in a drying process entrained finely divided particles and fibers, referred to collectively as fluff, so that they are not also located in the process air duct functional units such as blower , Contaminate or even clog pumps, heaters, heat exchangers, waterways, airways, etc.
  • lint filters have hitherto been a flat lint filter made of material, in particular plastic gauze, a small-pored foil or a lattice.
  • the lint filter is usually removable and can be cleaned after removal by a user.
  • a lint filter of this type is from the Scriptures WO 2007/057264 A1 known, where there is additionally an odor filter, eg with activated carbon, is present.
  • WO 2008/110451 A1 shows an arrangement comprising a first lint filter and a second lint filter, wherein the first lint filter and the second lint filter are arranged one behind the other and to flow through successively process air.
  • the second lint filter forms a permeable for the process air wall of a filter cartridge.
  • a disadvantage of the conventional lint filters is that still a certain amount of lint and the like foreign bodies such as long fibers and especially hair can pass through the lint filter. This is because the filter material for retaining lint must be designed so that a free passage area of about 35% to 45% and a mesh size of 100 to 200 microns are guaranteed because otherwise the lint filter is added too quickly and the air resistance becomes too high. A significantly finer filter material would cause the drying process would extend significantly, since the heater due to the high air resistance and the associated low volume flow heats up strongly towards the end and therefore must be operated with a significantly reduced heating power.
  • Finer filter material with a mesh size of significantly less than 150 microns also tends to clog quickly during the drying process by particles from detergent or lime residues in the laundry.
  • the hair in the process air which have a diameter between 10 .mu.m and 60 .mu.m, especially in domestic animals and 35 microns to 120 microns in humans, through the conventional filter material and into the downstream air ducts and components (eg heating, Heat exchanger, blower, etc.) can enter and enter the water supply and cause problems in the usually very simple condensate pumps (eg blockages through hair bundles).
  • hair can wrap around a drive shaft of a blower and block this blower.
  • the object is achieved according to the invention by a method for cleaning a process air flow of a laundry dryer during a drying process by means of at least one lint filter, wherein the process air flow is passed through a plurality of lint screens, wherein at least one lint filter for retaining hair and at least one other lint filter for retaining short-fiber Furthermore, the lint filter for retaining the hair has a mesh size of more than 20 microns and less than 60 microns, the at least one other lint filter for retaining short-fiber lint has a mesh size of 100 .mu.m to 200 .mu.m and a free passage area of 36% to 45%, and the process air flow during the drying process first flows through the at least one lint filter to retain the hair and then the at least one other lint filter for retaining the short-fiber lint.
  • the lint-retaining lint may retain the lint without an increased risk of clogging, while the lint-retaining lint can effectively remove it from the process air stream.
  • hair and other pet hair, human hair and / or long-fiber fluff can be understood by hair and other pet hair, human hair and / or long-fiber fluff.
  • the lint filters have different mesh sizes, wherein the at least one lint filter for retaining hair has a mesh width of less than 60 ⁇ m. Through this mesh size, a large part of the hair can be filtered out.
  • the at least one lint filter for retaining the hair has a mesh width of more than 20 ⁇ m. This prevents clogging of this lint filter from filtering out the hair in practice.
  • At least the at least one lint filter for retaining the hair flows through the process air and then the at least one other lint filter for retaining the lint.
  • This embodiment makes the property of hair own, that although they are hygroscopic (and therefore adhere well to damp, to be dried laundry), but the water is bound to the surface of the hair only relatively weak. It results itself that on the laundry to be dried adhesive hair are dried on their surfaces after a short period in the drying process and can be easily replaced by the volume flow of process air from the laundry. Consequently, the hair gets to the lint filter before other lint from the textiles get there.
  • the process air stream is first passed over the at least one lint filter to hold the hair, almost all of the hairs can be retained there without this lint filter being clogged with lint.
  • the mesh size can be kept comparatively small, which further increases a retention effectiveness for the hair.
  • the lint filter used thereafter for retaining the lint filters a process air substantially free of hair.
  • the lint screens have gauze as the filter material.
  • At least one air guide in particular air guide plate, is adjusted for the alternating passage of the process air flow through the plurality of lint filters.
  • the at least one lint filter for retaining the hair is flowed through by the process air for 5 to 15 minutes, in particular about 10 minutes. It has been found that essentially all hair reaches the lint filter during this time, as long as they are not held in place by mechanical forces (jamming in gaps, etc.). As a result, a precise temporal separation between the separation of the hair and the deposition of the lint and other residues (detergent residues, etc.) is possible.
  • the at least one lint filter is traversed to retain the hair, for example, from the beginning of the drying process of the process air.
  • a laundry drying apparatus which is adapted to perform such a method, and which comprises: a central control unit, a process air duct with at least two parallel branches, each of the branches has a respective lint filter, and a through the central control unit controllable air guiding means for deflecting a in the Process air duct guided process air between the branches.
  • the controllable air guiding means is controllable by means of a central control unit of the laundry drying apparatus.
  • a drying process of the clothes dryer 1 is started.
  • a process air blower 2 is activated in the tumble dryer 1, which circulates process air P in a process air duct K.
  • the process air channel K comprises in succession, but not necessarily in this order, a - e.g. rotatable - drying drum 3 for holding laundry to be dried, a heater for heating the process air (not shown) and a condensation unit for condensing out of the wash water (not shown), both of which are also activated.
  • a tumble dryer with these components is known.
  • the process air duct K of the tumble dryer 1 shown here is provided with two parallel branches Ka and Kb, each of the branches Ka, Kb having a respective lint filter 4, 5.
  • a first lint filter 4 which is set up for retaining hair, is introduced into a first branch Ka.
  • a second lint filter 5 is introduced, which is adapted to retain lint.
  • the first lint filter 4 is extensively equipped with a plastic gauze, which has a mesh size of more than 20 microns and less than 60 microns. This hair can be retained particularly effective.
  • the second lint filter 5 is flat with a conventionally used one Plastic gauze equipped, which has a passage area of about 36 - 45% and a mesh size of 100 microns to 200 microns.
  • the tumble dryer 1 further comprises an air guide in the form of a movable air baffle 6, by means of which the process air flow can be selectively directed either by the first branch Ka or by the second branch Kb.
  • the air guide plate 6 is set so that the process air P flows through the first branch Ka and thus through the first lint filter 4.
  • the second branch Kb is blocked.
  • the surface of the laundry or textiles is first dried, so that typically adhering hair can dissolve there and be entrained with the process air P. Fluffs, on the other hand, still stick in practice.
  • the offset with the hair air flows through the first lint filter 4, where the hair is held back. Since virtually no lint is present in the process air P, the first lint filter 4 does not clog up, and a sufficiently high volume flow can be maintained.
  • step S3 the air baffle 6 is switched or changed so that the process air P now flows through the second branch Kb and thus through the second lint filter 5.
  • the first branch Ka is blocked.
  • the lint-laden process air P is guided in a conventional manner by the second lint filter 5 and filtered there, but the process air is hair-free.
  • step S4 the drying process can be ended.
  • a step S5 the lint filters 4 and 5 are removed for cleaning. Since the lint screens 4, 5 are combined in a common, removable unit, for example, have a common frame, the removal and cleaning are user friendly.
  • the lint filter or the lint filters can also be accommodated in a door of the drying device. Also, the lint filter or the lint filters can be arranged above or next to the drying drum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP10190076.9A 2009-11-20 2010-11-05 Verfahren zum Reinigen einer Prozessluft eines Wäschetrocknungsgeräts und Wäschetrocknungsgerät Not-in-force EP2333148B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10190076T PL2333148T3 (pl) 2009-11-20 2010-11-05 Sposób oczyszczania powietrza procesowego urządzenia do suszenia bielizny, oraz urządzenie do suszenia bielizny

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009046920A DE102009046920A1 (de) 2009-11-20 2009-11-20 Verfahren zum Reinigen einer Prozessluft eines Wäschetrocknungsgeräts und Wäschetrocknungsgerät

Publications (3)

Publication Number Publication Date
EP2333148A2 EP2333148A2 (de) 2011-06-15
EP2333148A3 EP2333148A3 (de) 2013-06-05
EP2333148B1 true EP2333148B1 (de) 2015-01-07

Family

ID=43899671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10190076.9A Not-in-force EP2333148B1 (de) 2009-11-20 2010-11-05 Verfahren zum Reinigen einer Prozessluft eines Wäschetrocknungsgeräts und Wäschetrocknungsgerät

Country Status (3)

Country Link
EP (1) EP2333148B1 (pl)
DE (1) DE102009046920A1 (pl)
PL (1) PL2333148T3 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11186943B2 (en) 2017-10-09 2021-11-30 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5537374B2 (ja) * 2010-09-30 2014-07-02 パナソニック株式会社 乾燥処理装置及び除去装置
SI2647755T1 (sl) * 2013-03-13 2019-02-28 V-Zug Ag Naprava za obdelavo perila s filtrom, ki ga je moč vključiti
EP3246455B1 (en) * 2016-05-17 2022-07-06 Electrolux Appliances Aktiebolag Laundry treating machine comprising a removable de-fluff filter
DE102018221092A1 (de) * 2018-12-06 2020-06-10 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085348A (en) * 1957-01-23 1963-04-16 Oxy Catalyst Inc Lint remover for fabric dryer
DE3418836A1 (de) * 1984-05-07 1985-12-12 Multimatic Maschinen GmbH & Co, 4520 Melle Flusenfilter einer chemischreinigungsmaschine
DE3831722A1 (de) * 1988-09-17 1990-03-22 Dieter Uhrner Stahlbau Gmbh Anlage fuer die chemische loesemittelreinigung von kleidungsstuecken und dergleichen
US5236478A (en) * 1993-01-28 1993-08-17 Lewis Keith B Lint trap unit
DE19705616A1 (de) * 1997-02-14 1998-08-20 Miele & Cie Flusenfiltereinrichtung für einen Wäschetrockner
DE19952751B4 (de) * 1999-11-02 2009-01-02 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrockner mit einem selbstreinigenden Flusenfilter
DE102005055180A1 (de) 2005-11-18 2007-05-24 BSH Bosch und Siemens Hausgeräte GmbH Flusenfiltereinrichtung
DE102007012071A1 (de) * 2007-03-13 2008-09-18 BSH Bosch und Siemens Hausgeräte GmbH Wäschtrockner mit verbesserter Flusenbeseitigung sowie Verfahren zu seinem Betrieb
DE102008057460B4 (de) * 2008-11-14 2011-04-28 Miele & Cie. Kg Wäschebehandlungsmaschine insbesondere Wäschetrockner und selbstreinigende Flusenfiltereinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11186943B2 (en) 2017-10-09 2021-11-30 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter
US11761141B2 (en) 2017-10-09 2023-09-19 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

Also Published As

Publication number Publication date
DE102009046920A1 (de) 2011-05-26
EP2333148A2 (de) 2011-06-15
PL2333148T3 (pl) 2015-05-29
EP2333148A3 (de) 2013-06-05

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