EP1788142A2 - Dispositif pour sécher du linge au moyen d'un courant d'air - Google Patents

Dispositif pour sécher du linge au moyen d'un courant d'air Download PDF

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Publication number
EP1788142A2
EP1788142A2 EP06122208A EP06122208A EP1788142A2 EP 1788142 A2 EP1788142 A2 EP 1788142A2 EP 06122208 A EP06122208 A EP 06122208A EP 06122208 A EP06122208 A EP 06122208A EP 1788142 A2 EP1788142 A2 EP 1788142A2
Authority
EP
European Patent Office
Prior art keywords
film
air flow
sieve
drum
lint
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
EP06122208A
Other languages
German (de)
English (en)
Other versions
EP1788142B1 (fr
EP1788142A3 (fr
Inventor
Jörg GASSMANN
Roman Goldberg
Kai Nitschmann
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
Publication of EP1788142A2 publication Critical patent/EP1788142A2/fr
Publication of EP1788142A3 publication Critical patent/EP1788142A3/fr
Application granted granted Critical
Publication of EP1788142B1 publication Critical patent/EP1788142B1/fr
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 device for drying laundry by means of an air flow, comprising a drum for receiving the laundry and a duct system for guiding the air flow, wherein the duct system has a downstream side of the drum arranged portion in which the air flow is guided in a falling direction and in which a sieve for collecting fluff from the air flow is arranged and the screen is associated with a squeegee for stripping trapped lint.
  • the apparatus according to each of these documents comprises a flat screen which serves to catch fluff which detaches and entrains a heated air stream during the drying of laundry shaken in a rotating drum.
  • the lint collected on the sieve must be removed on a regular basis so that the flow resistance of the sieve, which is set against the flow of air, remains sufficiently low and an impairment of the drying of the linen is avoided.
  • a squeegee is provided in each device which is periodically actuated to strip the collected lint from the wire.
  • the screen is designed as part of an endless belt and, driven by a motor, can be moved with its entire effective length past the stationary squeegee.
  • the fluff thereby stripped from the sieve are collected in a reservoir.
  • the sieve is designed as a fixed surface and is swept over by a movable squeegee to remove collected lint; the squeegee is connected via a corresponding transmission with a closing mechanism of the door of the tumble dryer, so that each time the door is opened, the squeegee is passed over the sieve.
  • the EP 0 997 571 B1 relates to a method for monitoring the drying air flow in a household tumble drier and a correspondingly improved household tumble drier. It is provided, the flow velocity of the Dry air flow to measure and monitor. This is to detect an undesirable high flow resistance for the air flow and be displayed by a suitable alarm.
  • the main cause of such increased flow resistance is lint that is deposited in corresponding components of the tumble dryer.
  • the DE 199 24 297 A1 is a household laundry dryer with a self-cleaning lint filter, appropriate sensors and appropriately equipped control device to detect during a drying process, an unfavorable high flow resistance at the lint filter and eliminate by causing a self-cleaning of the lint filter.
  • the disclosure of both documents is to the full extent attributable to the present disclosure.
  • Each in one of the mentioned writings EP 1 050 619 B1 and DE 44 03 183 C2 described device is characterized by the fact that it has made the cleaning of the screen of trapped fluff systematized and handling safe that an impairment of the drying process largely excluded and a reproducible good result of the drying process is secured.
  • each of the devices described is disadvantageous both in terms of the mechanism used and in terms of the costs to be incurred.
  • the invention to be described below is based on the object to provide a device of the type mentioned, which requires a simpler and less expensive mechanism than any of the known devices.
  • an apparatus for drying laundry by means of an air flow comprising a drum for receiving the laundry and a duct system for guiding the air flow, wherein the channel system has a downstream side of the drum section, in which the air flow in a falling direction is guided and in which a sieve arranged to catch lint from the air flow and the screen is associated with a squeegee for stripping trapped 35 fluff,
  • the sieve is an approximately horizontally disposed and curved in the falling direction channel and the squeegee on a spring Having the sieve supportable and curved according to the gutter foil.
  • the invention is based on the recognition that with regular cleaning of the screen, a sieve can be used, which has a relation to the screens of the prior art significantly reduced space requirements, and thus allows the use of a comparatively simple and compact doctor.
  • the sieve which had to occupy a relatively large area approximately corresponding to a full opening of the drum in a device of the prior art, is transformed into a comparatively compact component in the form of a gutter, which in particular below a feed opening of the drum in the door of an otherwise customarily designed tumble dryer can be arranged. Due to the curved shape, the screen gains in stability and can be easily and reliably cleaned regularly by means of a suitably designed squeegee.
  • the shape chosen for the screen provides a surface that is significantly larger than that of a planar screen, thus offering a relatively low flow resistance for the air flow flowing through.
  • the shape of the cross-section of the channel is less important, with a cross-section which is particularly smooth, in particular more or less corresponding to a conic section curve, has proven to be expedient and expedient.
  • the film is supportable at an acute angle on the screen to improve the shearing off of lint which more or less adheres to the screen.
  • the portion of the channel system through which the air flow must flow in a descending direction extends through a bearing plate, which on the one hand provides a support structure for a front side of the device and a front support for the drum and on the other hand carries a door for closing the drum ,
  • the doctor is associated with a drive device comprising a motor and a transmission, wherein the motor is controllable by a control device of the device.
  • the transmission is further preferably a push belt in the manner of a steel strip, as used in a conventional roll-up tape measure.
  • a push band has a transversely extending to a longitudinal direction crowning and is particularly flexible in a plane perpendicular to this, wherein a Stability under tensile and compressive loads along the longitudinal direction is fully maintained. Therefore, the pusher tape can be used to drive a carriage carrying the film of the doctor blade, without a separate guide for the pusher belt is required.
  • a remaining limited buckling stiffness contributes to the intrinsic safety of this drive, because the push band can buckle and relieve the engine if the squeegee should jam on its way to an unforeseen obstacle.
  • the transmission of the driving force from the engine to the push belt can be done by means of a engaging in a corresponding hole of the push belt and directly driven by the motor pinion.
  • To increase the reliability of the push belt is a corresponding remuneration of its surface, in particular by smoothing and / or coating with a lubricant such as PTFE, of additional advantage.
  • the foil of the doctor blade is preferably segmented into a plurality of tongues for support on the sieve.
  • a length of each tongue between 5 mm and 15 mm has proved to be expedient considering the properties of the material chosen for the film, as well as a distance between each two directly adjacent tongues of at most 0.5 mm.
  • a thickness of the film between 50 microns and 250 microns has proved to be useful.
  • the film is preferably made of a material from a group comprising stainless steel, ceramics, coated ceramics and polymers, in particular polyamides and polyimides.
  • a thickness between 50 microns and 100 microns has proven to be advantageous for a film of a polyimide, a thickness between 100 microns and 250 microns.
  • the suitability for a sufficiently long use in a warm and humid atmosphere is decisive for the selection of the material of the film, whereby it depends accordingly on high elasticity with low relaxation under tension and low water absorption.
  • doctor blade has a rest position at a first end of the channel and at a second end of the channel a shaft for receiving stripped lint is provided, further at the second end a Abstreifan extract for stripping adhering lint is attached by the film.
  • the wiper assembly preferably comprises a plurality of teeth or bristles which engage between each two directly adjacent tongues of the film.
  • the bristles can be provided in the form of a brush extending over a complete cross section of the channel.
  • the sieve rests on a latticed sieve carrier. As a result, spring forces which the film exerts on the wire are absorbed and the load on the wire is reduced.
  • the apparatus for drying laundry 1 by means of an air flow comprises a drum 2 for receiving the laundry 1, wherein the drum 2 is rotatable about an axis 20 in order to shake the laundry 1 in the air flow.
  • the air flow is in a channel system 3, 4, 5 away from the drum 2 and this fed again.
  • the Channel system 3, 4, 5 comprises a falling section 3, which passes partly through a bearing plate 10 for feeding the drum 2, a horizontal portion 4 below the drum 2 and a rising portion 5, through which the air flow passes again to the drum 2.
  • the falling section 3 contains a screen 6, which is arranged in the bearing plate 10 and from which the fluff 7, which entraises the air flow of the laundry 1, traps.
  • a heat exchanger 21 is provided, in which the air flow is cooled to condense entrained water vapor. Condensed water is separated from the air stream by known per se and not shown in Fig. 1 and disposed of.
  • a fan 22 which drives the air flow through the drum 2 and the channel system 3, 4, 5, and a heater 23, through which the air flow before entering the drum 2 again is heated.
  • the heat exchanger 21 and the heating device 23 may optionally be wholly or partly associated with a recuperative heat transport system, in particular a heat pump.
  • the end shield 10 forms on the one hand a support structure for a front side of the device and a front support for the drum 2 and on the other hand carries a door 30 for closing the drum second
  • FIG. 2 shows a detailed view of the device sketched in FIG. 1, comprising the sieve 6, which is only partially shown by a portafilter 19 and, for the sake of clarity, curved into a gutter 6.
  • a squeegee 8, 9 travels on the sieve 6 and points in a pointed manner Angle supported on the screen slide 8 and a slide 8 carrying carriage 9, which is movable on corresponding rails of the portafilter 19.
  • this film 8 6 collected lint can be stripped from the screen 6 and fed to a shaft 16 away from the screen 6, or in which they get to a in Fig. 2 only partially shown reservoir 25 for storage and subsequent removal ,
  • the film 8 is supported with a plurality of tongues 13 on the wire 6; to the above statements on advantageous dimensions and advantageous choice of material for the film 8 is referenced.
  • a stripping assembly 17, 18 provided for stripping adhering lint 7 of the film 8.
  • This scraper assembly 17, 18 is formed by teeth 17 and / or bristles 18.
  • the scraper assembly 17, 18 serves to remove lint 7 stuck to the film 8 to interfere with the stripping of collected fluff 7 from the wire 6 prevent.
  • squeegee 8, 9 for stripping trapped lint 7 from the wire 6 is advantageously carried out by means of a suitable drive (see Figures 3 and 4) and at the end of each drying operation carried out in the device. If desired and if required, this stripping can also take place several times during a drying process, with appropriate requirements possibly with appropriate sensors (detection of undesirable pressure drop across the wire 6 in the air stream) in basically known manner and can be determined by basically known means.
  • Fig. 3 shows the embedding of the screen 6 and the filter holder 19 in the bearing plate 10 of the tumble dryer.
  • the end shield 10 is seen from the drum 2.
  • the air flow leaving the drum 2 enters the bearing plate 10 along the arrows 26 and thus arrives at the sieve 6, not shown for the sake of clarity, on the portafilter 19. There, the air flow is freed of entrained lint.
  • the collected lint are removed from the doctor 8, 9 by being moved by means of a motor 11 and a transmission formed by a cambered push band 12 from a first end 14 of the wire to a second end 15.
  • the thus stripped films enter the shaft 16 and into the reservoir 25, 27.
  • the push band 12 is perforated in a manner not shown and is driven by a cover 28 partially covered by a pinion 29 (see also Fig. 5) of the motor 11 ,
  • This push band 12 has the advantage of inherent stability, which makes a special leadership dispensable, and is stable even if the film 8 should catch once; a corresponding excessive load, the push band 12 can escape by buckling.
  • the connection of the push band 12 with the carriage 9 takes place in particular in such a way that an attached to the push band 12, not shown, nose or screw engages in a corresponding recess 24 on the carriage 9.
  • the reservoir 25, 27 is the bearing plate 10 can be removed, as indicated in Fig. 4. In this way, collected fluff 7 can be relatively easily and conveniently removed, it eliminates the previously always necessary in a conventional tumble dryer of scraping a screen. 6
  • the squeegee 9 is not visible in Fig. 4, since it must be at the time of removal of the reservoir 25, 27, which necessarily occurs at a time when the door 30 (see Fig. 1) is open and accordingly no drying process is running , is in its rest position in the region of the first end 14.
  • Fig. 5 shows a detailed view of the already mentioned push band 12. His straight sections are cambered, that is provided with a certain curvature, wherein the curvature reversibly disappears when the push band 12 is bent.
  • the push band 12 is provided with holes 31, which are only partially excellent and in which the pinion 29, of which only one tooth is drawn, as symbolized by an arrow engages.
  • the push band 12 and the pinion 29 are shown in Fig. 5 only for clarity half distanced from each other.
  • the push band 12 is guided over a approximately corresponding to a right angle region around the pinion 29. Due to its inherent dimensional stability, it can be guided outside of a kink largely without special guide device, which makes its use in the presently described tumble dryer particularly advantageous.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
EP06122208.9A 2005-11-16 2006-10-12 Dispositif pour sécher du linge au moyen d'un courant d'air Not-in-force EP1788142B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005054684A DE102005054684A1 (de) 2005-11-16 2005-11-16 Vorrichtung zum Trocknen von Wäsche mittels eines Luftstroms

Publications (3)

Publication Number Publication Date
EP1788142A2 true EP1788142A2 (fr) 2007-05-23
EP1788142A3 EP1788142A3 (fr) 2008-07-30
EP1788142B1 EP1788142B1 (fr) 2013-09-25

Family

ID=37745840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06122208.9A Not-in-force EP1788142B1 (fr) 2005-11-16 2006-10-12 Dispositif pour sécher du linge au moyen d'un courant d'air

Country Status (3)

Country Link
US (1) US7805856B2 (fr)
EP (1) EP1788142B1 (fr)
DE (1) DE102005054684A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074581A1 (fr) * 2006-12-19 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Procédé et dispositif pour sécher du linge au moyen d'un flux d'air et appareil ménager contenant un tel dispositif
EP2075367A2 (fr) 2007-12-27 2009-07-01 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager destiné à l'entretien de pièces de linge et procédé destiné à enlever des peluches à partir d'un tel appareil ménager
DE102008062434A1 (de) 2008-12-17 2010-07-01 Ip Ag Flusenabreinigungsvorrichtung
DE102014115440A1 (de) 2014-10-23 2015-09-10 Miele & Cie. Kg Kartusche für einen Trockner
DE102014117651A1 (de) 2014-12-02 2016-06-02 Miele & Cie. Kg Wäschetrockner
DE102015107692A1 (de) 2015-05-18 2016-11-24 Miele & Cie. Kg Wäschetrockner insbesondere für gewerbliche Zwecke
US11118304B2 (en) * 2017-01-25 2021-09-14 Samsung Electronics Co., Ltd. Clothes dryer

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050278983A1 (en) * 2004-03-01 2005-12-22 Maytag Corporation Filter vent for drying cabinet
DE102005013051A1 (de) * 2005-03-18 2006-09-21 BSH Bosch und Siemens Hausgeräte GmbH Kondensations-Wäschetrockner
DE102005013053A1 (de) * 2005-05-23 2006-11-30 BSH Bosch und Siemens Hausgeräte GmbH Kondensations-Wäschetrockner
CA2599375C (fr) * 2006-09-06 2011-06-21 Lg Electronics Inc. Systeme de detection de bouchage pour secheuse
CA2599353C (fr) * 2006-09-06 2011-05-24 Lg Electronics Inc. Secheuse avec fonction de detection de bouchage
US7886458B2 (en) * 2006-12-22 2011-02-15 G.A. Braun Inc. Lint collection apparatus and system for fabric dryers
US8146265B2 (en) * 2007-04-18 2012-04-03 Lg Electronics Inc. Display device of dryer
KR101414625B1 (ko) * 2007-11-21 2014-07-03 엘지전자 주식회사 건조기
DE102008016815B4 (de) * 2008-04-01 2011-06-30 Miele & Cie. KG, 33332 Wäschebehandlungsmaschine insbesondere Wäschetrockner
DE102008041998A1 (de) * 2008-09-11 2010-03-18 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit einem Flusenfilter und einer Reinigungsvorrichtung
DE102008054548A1 (de) * 2008-12-11 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit Umluftanteil sowie Verfahren zu seinem Betrieb
KR101030171B1 (ko) * 2008-12-17 2011-04-18 엘지전자 주식회사 건조기
DE102009055237A1 (de) * 2009-12-23 2011-06-30 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Wäschetrockner mit einem Sensor und einer Säuberungseinrichtung für diesen
AU2011249157B2 (en) 2010-05-04 2014-07-24 Lg Electronics Inc. Control technology for clothes treatment apparatus
EP2567016B1 (fr) * 2010-05-07 2021-08-25 LG Electronics Inc. Appareil de traitement de vêtements et technologie de filtration
KR101716821B1 (ko) * 2010-10-12 2017-03-15 삼성전자주식회사 의류건조기 및 이에 구비되는 린트 청소장치
US10077528B2 (en) * 2014-11-28 2018-09-18 Samsung Electronics Co., Ltd. Clothes dryer
JP2016101373A (ja) * 2014-11-28 2016-06-02 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 衣類乾燥機
DE102019204990A1 (de) 2019-04-08 2020-10-08 BSH Hausgeräte GmbH System zum Reinigen eines Membranelements, insbesondere eines Membranelements eines wasserführenden Haushaltsgeräts, Rakelelement und Verfahren zum Reinigen eines Membranelements
DE102020210389A1 (de) 2020-08-14 2022-02-17 BSH Hausgeräte GmbH Fluidführendes Haushaltsgerät
DE102021205973A1 (de) 2021-06-11 2022-12-15 BSH Hausgeräte GmbH Wäschepflegegerät zur Behandlung von Gegenständen
DE102021207116A1 (de) 2021-07-07 2023-01-12 BSH Hausgeräte GmbH Filtersystem und verfahren zum reinigen einer filterfläche
DE102022207949A1 (de) 2021-08-04 2023-02-09 BSH Hausgeräte GmbH Fluidführendes Haushaltsgerät

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Publication number Priority date Publication date Assignee Title
DE8224528U1 (de) * 1982-08-31 1983-02-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektrischer waeschetrockner
DE4403183A1 (de) * 1994-02-02 1995-08-03 Bosch Siemens Hausgeraete Haushalt-Wäschetrockner
EP0997571A2 (fr) * 1998-09-17 2000-05-03 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour surveiller l'air de séchage dans un séchoir à linge domestique et un séchoir à linge domestique utilisant un tel procédé

Family Cites Families (8)

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US1429519A (en) * 1918-08-29 1922-09-19 Aubrey E Meyer Combing device for textile fibers
US1791574A (en) * 1925-09-14 1931-02-10 American Laundry Mach Co Delinting device for drying machines
US2570437A (en) * 1945-10-03 1951-10-09 Ellis Drier Company Drying tumbler having operation sequence controls
US4991038A (en) * 1988-11-21 1991-02-05 Datatape Incorporated Automatic threading of a web using a flexible threading band
DE9212226U1 (de) * 1992-09-10 1992-11-19 Bauknecht Hausgeräte GmbH, 7000 Stuttgart Wäschetrockner
US6179887B1 (en) * 1999-02-17 2001-01-30 3M Innovative Properties Company Method for making an abrasive article and abrasive articles thereof
DE19919407A1 (de) 1999-04-28 2000-11-02 Bsh Bosch Siemens Hausgeraete Automatisch zur reinigende Flusenfiltereinrichtung für Haushaltwäschetrockner
DE19924297A1 (de) 1999-05-27 2000-11-30 Bsh Bosch Siemens Hausgeraete Verfahren zum betreiben eines Haushaltwäschetrockners mit einem selbstreinigenden Flusenfilter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8224528U1 (de) * 1982-08-31 1983-02-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektrischer waeschetrockner
DE4403183A1 (de) * 1994-02-02 1995-08-03 Bosch Siemens Hausgeraete Haushalt-Wäschetrockner
EP0997571A2 (fr) * 1998-09-17 2000-05-03 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour surveiller l'air de séchage dans un séchoir à linge domestique et un séchoir à linge domestique utilisant un tel procédé

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074581A1 (fr) * 2006-12-19 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Procédé et dispositif pour sécher du linge au moyen d'un flux d'air et appareil ménager contenant un tel dispositif
EP2075367A2 (fr) 2007-12-27 2009-07-01 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager destiné à l'entretien de pièces de linge et procédé destiné à enlever des peluches à partir d'un tel appareil ménager
DE102008062434A1 (de) 2008-12-17 2010-07-01 Ip Ag Flusenabreinigungsvorrichtung
DE102014115440A1 (de) 2014-10-23 2015-09-10 Miele & Cie. Kg Kartusche für einen Trockner
DE102014117651A1 (de) 2014-12-02 2016-06-02 Miele & Cie. Kg Wäschetrockner
DE102015107692A1 (de) 2015-05-18 2016-11-24 Miele & Cie. Kg Wäschetrockner insbesondere für gewerbliche Zwecke
DE102015107692B4 (de) 2015-05-18 2019-05-29 Miele & Cie. Kg Wäschetrockner insbesondere für gewerbliche Zwecke mit einer Flusenfiltereinrichtung
US11118304B2 (en) * 2017-01-25 2021-09-14 Samsung Electronics Co., Ltd. Clothes dryer

Also Published As

Publication number Publication date
EP1788142B1 (fr) 2013-09-25
DE102005054684A1 (de) 2007-05-24
US7805856B2 (en) 2010-10-05
US20070107250A1 (en) 2007-05-17
EP1788142A3 (fr) 2008-07-30

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