EP2848729B1 - Appareil de séchage du linge - Google Patents

Appareil de séchage du linge Download PDF

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Publication number
EP2848729B1
EP2848729B1 EP14178586.5A EP14178586A EP2848729B1 EP 2848729 B1 EP2848729 B1 EP 2848729B1 EP 14178586 A EP14178586 A EP 14178586A EP 2848729 B1 EP2848729 B1 EP 2848729B1
Authority
EP
European Patent Office
Prior art keywords
laundry
electrode
filter
lint filter
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.)
Active
Application number
EP14178586.5A
Other languages
German (de)
English (en)
Other versions
EP2848729A1 (fr
Inventor
Alexander Drebant
Marcus Simon
René BEDEWITZ
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL14178586T priority Critical patent/PL2848729T3/pl
Publication of EP2848729A1 publication Critical patent/EP2848729A1/fr
Application granted granted Critical
Publication of EP2848729B1 publication Critical patent/EP2848729B1/fr
Active 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
    • 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
    • D06F2103/08—Humidity
    • D06F2103/10—Humidity expressed as capacitance or resistance
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/62—Stopping or disabling machine operation
    • 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
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers

Definitions

  • the invention relates to a laundry drying apparatus, in particular a tumble dryer, comprising a rotatably mounted drum, in the interior of which laundry items can be introduced and through which process air can be conveyed as part of a drying program of the laundry items and subsequently passed through a fluff filter, wherein a measuring device is provided for measuring the conductivity of the laundry items, which comprises electrodes that can be brought into contact with the items of laundry during the drying program for measuring the conductivity. Furthermore, the invention relates to a lint filter for a laundry drying apparatus, and a method for operating a laundry drying apparatus.
  • Laundry drying devices are used to dry items of laundry, ie a reduction of residual moisture remaining in the laundry items after a previous washing process.
  • a residual moisture of the laundry items is detected at certain time intervals in the context of the respective drying program in order to determine whether a drying of the laundry is to continue or already sufficient drying has been achieved, so that the drying program can be stopped accordingly.
  • different methods for detecting the residual moisture of the laundry items are used, wherein a common variant is the determination of a conductance of the laundry, which is proportional to the moisture content of the laundry.
  • electrodes are attached to an air outlet grille on the drum of a clothes dryer.
  • a laundry dryer in the form of a tumble dryer, which has a rotatably mounted drum, in which laundry items can be introduced for drying.
  • process air is then passed through the drum and then passed over a lint filter to prevent entrained by the process air fluff on another Mitströmen with the process air.
  • the tumble dryer also has a measuring device, via which as part of a moisture sensing each can be brought into contact with the laundry items.
  • the electrodes are combined in a device which protrudes into the region of an interior space of the drum, so that the laundry items accommodated in the drum can come into contact with both electrodes for conductivity measurement.
  • a voltage is applied to the two electrodes via a resistor, which results in a current flow through the adjacent laundry items.
  • the laundry voltage dropping on the laundry items is then measured at the electrodes and the conductance is determined therefrom, which is proportional to the respective moisture content of the laundry items.
  • a laundry drying apparatus in particular a tumble dryer, comprising a rotatably mounted drum, in the interior of which laundry items can be introduced and through which process air can be conveyed as part of a drying program of the laundry items and can subsequently be passed through a fluff filter
  • a measuring device for measuring the conductance of the Laundry which comprises electrodes that can be brought into contact with the items of laundry during the conductivity measurement drying program, the lint filter having a screen housing having a portafilter covered with a fine mesh screen material and having a head with perforations, by which process air can pass from the interior into the screen housing, wherein a first electrode of the measuring device is attached to the head, and wherein a second electrode of the measuring device to a housing part of the laundry drying apparatus is fixed and wherein in the case of the absence of the one having an electrode lint filter and thus not feasible Leitwertflop the drying program is canceled.
  • a method for operating a laundry drying apparatus comprising a rotatably mounted drum, in the interior laundry items can be introduced and through which in the context of a drying program the laundry process air can be passed and subsequently passed through a lint filter, wherein a measuring device for Leitwertflop of the laundry items is provided, which comprises electrodes which are respectively brought into contact with the laundry items during the Leitwertress drying program, wherein the lint filter has a screen housing having a filter holder, which is covered with a fine-meshed screen material, and a head with Having perforations through which process air can pass from the interior into the screen housing, wherein a first electrode of the measuring device is attached to the head, and wherein a second electrode of the measuring device to a housing part is fixed, in which method in the case of the absence of a lint having an electrode and thus not feasible Leitwertflop the drying program is stopped.
  • the laundry drying apparatus is preferably a tumble dryer, which may be designed in particular as an exhaust air dryer, condensation dryer or as a heat pump dryer.
  • the laundry dryer may under certain circumstances also be a washer dryer in which both a washing introduced laundry items and their subsequent drying can be displayed.
  • a Leitwert simmer the garments takes place in the context of the invention in that between the two electrodes of the measuring device via a resistor voltage is applied, which is subsequently determined by measurement on a voltage divider, series resistor to the laundry resistance, the conductance, which is proportional to the residual moisture content the laundry is.
  • the invention comprises the technical teaching that the lint filter, via which the process air led out of the drum is passed, carries a first electrode of the measuring device, and that a second electrode of the measuring device is fastened to a housing part.
  • the lint filter comprises a screen housing to which the electrode is attached.
  • This screen case has in this case a portafilter which is covered with a fine-meshed screen material and on which a lint filter head is placed with perforations, the process air pass through these perforations from the interior of the drum into the interior of the lint filter and thus of the screen housing and on the portafilter can escape through the fine mesh material again.
  • corresponding, entrained by the process air lint are deposited on the screen material.
  • Such an embodiment of a laundry drying apparatus has the advantage that a better contacting between the laundry items and the electrodes of the measuring device for Leitwert shortcut is realized because the laundry items are pressed by the process air flowing through the drum in the direction of the lint filter and thereby with the there get in contact electrode. Since contact measurement of at least one item of laundry with both electrodes is necessary for conductance measurement, the probability of such a contact is thereby determined by the appropriate arrangement of the measuring device favors. Furthermore, only a second electrode of the measuring device has to be arranged elsewhere, which offers more space for optimized air guidance, in particular in the area of a bearing plate of the laundry drying device.
  • a query can be realized by placing one of the electrodes of the measuring device on the lint filter in a simple manner, whether the lint filter is inserted properly.
  • a method according to the invention for operating a laundry drying device in the event of the absence of the lint filter provided on the electrode detects that a Leitwert shortcut the introduced laundry is not feasible, which is discontinued in each case the current drying program of the laundry dryer.
  • one of the two electrodes of the conductivity measurement does not exist, so that the conductance measurement and thus the moisture measurement can not be carried out during the respective drying program.
  • a second electrode of the measuring device is fastened to a housing part.
  • this housing part is a bearing plate, in which the lint filter is inserted in an inserted state into a shaft, via which the process air can be removed from the drum.
  • the placement of the second Electrode on the part of a housing and in particular on the part of a front bearing plate has the advantage that the second electrode is thus placed spatially very close to the first, sitting on the lint filter electrode so that at a coming to this area lying down laundry both a contact to the takes place as well as to the other electrode.
  • the second electrode housing part is provided.
  • the first electrode is designed as a sheet metal strip.
  • the first electrode can be easily provided in the region of an inner space of the drum.
  • the electrode can be encapsulated on the lint filter, clamped or secured by another method.
  • the lint filter is provided with an external, electrical contact, which is electrically connected to the first electrode and in an inserted state of the lint filter on a housing-side, electrical contact is applied, so that an electrical supply of the attached to the lint filter electrode is the housing side represented.
  • the screen housing of the lint filter is therefore provided with an external electrical contact, which is electrically connected to the first electrode.
  • this can also be the query whether the lint filter is inserted properly, can be realized in a reliable manner, as a conductance measurement is not possible if no contact of the housing-side contact with the flusensieb solutionen contact is made. In this way, for example, be detected if the onset of the lint filter while not forgotten, but it was not done properly.
  • the fluff filter side contact is designed as a wide metal contact, while the housing-side contact is realized as a resilient metal clip, so that this housing-side clamp presses against the flusensieb sectionen contact and establishes the electrical connection.
  • an error message is output.
  • This error indication can be present in particular as a warning signal in the form of a luminous control lamp, an acoustic signal and / or a reference to a control element.
  • Fig. 1 is a schematic view of a laundry dryer 1, it being in this laundry drying device 1 is a clothes dryer 1, which may be designed in particular as exhaust air dryer, as a condensation dryer or as a heat pump dryer with a principle known in the art.
  • the tumble dryer 1 has a machine housing 2, which is provided on a front side 3 with an opening 4, wherein this opening 4 can be closed by a door 5.
  • a drum 6 is rotatably mounted, which is equipped on one of the front side 3 facing side with a feed opening 7, via which laundry items can be introduced from the front side 3 forth in an interior 8 of the drum 6.
  • the drum 6 is mounted on the one hand in the rear region on a drive shaft 9, and on the front side via a bearing plate 10, which is part of the machine housing 2.
  • a rear wall of the drum 6 is provided with a perforation, via which heated process air can be supplied to the interior 8 of the drum 6 and can flow around the laundry located therein. In the process, this process air absorbs moisture from the items of laundry and continues to flow in the direction of the feed opening 7 of the drum 6, the process air laden with moisture then being discharged again in the area of the end shield 10.
  • Fig. 2 and also out Fig. 3 is a partial perspective view of the bearing plate 10 of the tumble dryer 1 to see, in Fig. 2 the bearing plate 10 is shown with a lint filter 11 inserted, while in Fig. 3 is removed.
  • a measuring device 12 is configured in the region of the end shield 10, by means of which a guide value of the items of laundry can be determined during a drying program of the items of laundry introduced into the drum 6, thus making it possible to conclude a residual moisture of the items of laundry.
  • the measuring device 12 comprises two electrodes 13 and 14, of which a first electrode 13 on the lint filter 11 and a second electrode 14 is attached to the bearing plate 10.
  • a residual moisture content of the laundry items is determined by these two electrodes 13 and 14 by applying a voltage to both electrodes 13 and 14 via a controller (not shown) which is applied when the laundry item contacts both electrodes 13 and 14 a current flow through this laundry has the result.
  • the thereby dropping on the laundry laundry voltage is measured in the sequence on the control of the measuring device and determined from this the conductance of each garment. This conductivity in turn is proportional to the residual moisture content in the laundry, so that can be closed accordingly to the residual moisture.
  • the second electrode 14 is doing on the bearing plate 10 via an in Fig. 2 attached lid 15 is fixed and arranged spatially close to the first electrode 13, which on a head 16 of the in Fig. 4 provided in a single view lint filter 11 is provided.
  • the first electrode 13 and also the second electrode 14 are placed so that they are in the region of perforations 17 of the head 16 of the lint filter 11, so that items of laundry, which are drawn over the perforations 17 escaping process air in this area, with high probability at the two electrodes 13 and 14 come to rest.
  • the lint filter 11 is, as in synopsis of Fig. 2 and Fig. 3 can be seen, taken in a corresponding shaft 18 of the bearing plate 10, via which the process air is discharged again after flowing through the interior 8 of the drum 6.
  • the lint filter 11 is arranged in the shaft 18 in a manner known to the person skilled in the art such that the process air enters the lint filter 11 via the perforations 17 and thus into the interior of the individual view Fig. 4 the lint filter 11 to see sieve housing 19 passes.
  • this screen housing 19 also comprises a portafilter 20, which has a port Fig. 4 not further shown - carries fine-meshed screen material, through which the process air can escape from the screen housing 19 again, being entrained with the process air lint.
  • a voltage supply of the first electrode 13 of the measuring device 12 is now on the housing side represented by the bearing plate 10 in the region of the shaft 18, a housing-side, electrical contact 21 is provided, which in one of Fig. 2 resulting inserted state of the lint filter 11 with a contact 22 touched.
  • This contact 22 is out on an outer side of the screen housing 19 of the lint filter 11 steals, as in Fig. 4 you can see.
  • this contact 22 is then in turn connected to the first electrode 13 provided on the head 16.
  • the lint-side contact 22 is designed as a wide metal contact, while the housing-side contact 21 is realized as a resilient metal clip.
  • a query whether the lint filter 11 is inserted properly Apart from a conductivity measurement is also realized via the measuring device 12, a query whether the lint filter 11 is inserted properly.
  • moisture is initially measured by the measuring device 12. If the lint filter 11 is not inserted into the shaft 18 or inserted in such a way that the contacts 21 and 22 do not touch, no conductance measurement can take place due to the first electrode 13 either not in place or due to their lack of power supply and thus also not be closed to the residual moisture of the laundry.
  • the respective drying program is terminated and an error signal is output to the operator, for example in the form of a luminous warning lamp, an acoustic signal and / or a corresponding display on a control element. In this way it is prevented that the drying program without lint filter 11 is completed, which would otherwise have a correspondingly high input of lint into the airways of the clothes dryer 1 result.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Claims (7)

  1. Appareil de séchage du linge (1), en particulier sèche-linge (1), comprenant un tambour (6) logé en rotation, dans l'espace intérieur (8) duquel du linge peut être inséré et à travers lequel de l'air de processus peut être guidé dans le cadre d'un programme de séchage du linge et ensuite mené à travers un filtre à peluches (11), dans lequel un dispositif de mesure (12) pour la mesure de la conductance du linge est prévu, lequel englobe des électrodes (13, 14), qui peuvent respectivement être placées en contact avec le linge durant le programme de séchage pour la mesure de la conductance, dans lequel le filtre à peluches (11) présente un carter de filtre (19), lequel présente un support de filtre (20), cordé d'un matériau filtrant à mailles fines, et une tête (16) avec des perforations, à travers lesquelles l'air de processus peut accéder au départ de l'espace intérieur (8) dans le carter de filtre (19), dans lequel une première électrode (13) du dispositif de mesure (12) est fixée sur la tête (16), et dans lequel une deuxième électrode (14) du dispositif de mesure (12) est fixée à une partie de carcasse (10) de l'appareil de séchage du linge (1) et dans lequel en cas d'absence d'un filtre à peluches présentant l'une des électrodes et de l'impossibilité y relative d'exécuter la mesure de la conductance, le programme de séchage est interrompu.
  2. Appareil de séchage du linge selon la revendication 1, dans lequel la partie de carcasse est un flasque (10), dans lequel le filtre à peluches (11) est inséré dans un état installé dans un compartiment (18) à travers lequel l'air de processus peut être évacué au départ du tambour (6).
  3. Appareil de séchage du linge selon la revendication 1, dans lequel le filtre à peluches (11) est doté d'un contact électrique (22) externe en liaison électrique avec la première électrode (13) et contiguë à un contact électrique (21) côté carcasse dans un état installé du filtre à peluches (11), de sorte qu'une alimentation électrique de la première électrode (13) peut être représentée côté carcasse.
  4. Filtre à peluches (11) selon la revendication 1, dans lequel un contact électrique (22) est prévu en externe sur le carter de filtre (19), lequel contact est en liaison électrique avec l'électrode (13).
  5. Filtre à peluches (11) selon la revendication 1, dans lequel l'électrode (13) est exécutée sous la forme d'une bande de tôle.
  6. Procédé d'exploitation d'un appareil de séchage du linge (1), en particulier sèche-linge (1), comprenant un tambour (6) logé en rotation, dans l'espace intérieur (8) duquel du linge peut être inséré et à travers lequel de l'air de processus peut être guidé dans le cadre d'un programme de séchage du linge et ensuite mené à travers un filtre à peluches (11), dans lequel un dispositif de mesure (12) pour la mesure de la conductance du linge est prévu, lequel englobe des électrodes (13, 14), qui peuvent respectivement être placées en contact avec le linge durant le programme de séchage pour la mesure de la conductance, dans lequel le filtre à peluches (11) présente un carter de filtre (19), lequel présente un support de filtre (20), cordé d'un matériau filtrant à mailles fines, et une tête (16) avec des perforations, à travers lesquelles l'air de processus peut accéder au départ de l'espace intérieur (8) dans le carter de filtre (19), dans lequel une première électrode (13) du dispositif de mesure (12) est fixée sur la tête (16), et dans lequel une deuxième électrode (14) du dispositif de mesure (12) est fixée à une partie de carcasse (10) de l'appareil de séchage du linge (1), dans lequel procédé le programme de séchage est interrompu en cas d'absence d'un filtre à peluches (11) présentant l'une des électrodes (13) et de l'impossibilité y relative d'exécuter la mesure de la conductance.
  7. Procédé selon la revendication 6, dans lequel une indication d'erreur est émise lors de cette interruption du programme de séchage.
EP14178586.5A 2013-08-01 2014-07-25 Appareil de séchage du linge Active EP2848729B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14178586T PL2848729T3 (pl) 2013-08-01 2014-07-25 Urządzenie do suszenia prania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013215070.9A DE102013215070A1 (de) 2013-08-01 2013-08-01 Wäschetrocknungsgerät

Publications (2)

Publication Number Publication Date
EP2848729A1 EP2848729A1 (fr) 2015-03-18
EP2848729B1 true EP2848729B1 (fr) 2019-02-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14178586.5A Active EP2848729B1 (fr) 2013-08-01 2014-07-25 Appareil de séchage du linge

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EP (1) EP2848729B1 (fr)
DE (1) DE102013215070A1 (fr)
PL (1) PL2848729T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820284B (zh) * 2018-07-23 2022-01-04 上海海尔洗涤电器有限公司 一种过滤支架及干衣机

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Publication number Priority date Publication date Assignee Title
IT8234042V0 (it) * 1982-10-08 1982-10-08 Zanussi A Spa Industrie Macchina asciugabiancheria con dispositivo di controllo del filtro per la filaccia.
US4899464A (en) * 1988-11-14 1990-02-13 Whirlpool Corporation Dryer outlet grill with sensor
US5940986A (en) * 1997-05-16 1999-08-24 White Consolidated Industries, Inc. Heat staked moisture sensor electrodes
DE10260149A1 (de) 2002-12-20 2004-07-01 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zur Bestimmung des Leitwertes von Wäsche, Wäschetrockner und Verfahren zur Verhinderung von Schichtbildung auf Elektroden
KR100587323B1 (ko) * 2003-04-28 2006-06-08 엘지전자 주식회사 자동 건조기의 센서 장착 구조
US8683714B2 (en) * 2008-12-30 2014-04-01 Arcelik Anonim Sirketi Dryer comprising a dryness sensor
EP2458075B1 (fr) * 2010-11-29 2017-06-28 Electrolux Home Products Corporation N.V. Sèche-linge avec système de capteur d'humidité
KR101887454B1 (ko) * 2012-01-11 2018-08-10 엘지전자 주식회사 필터삽입 감지장치 및 이를 장착한 의류건조기
EP2787116B1 (fr) * 2013-04-03 2016-01-20 Electrolux Appliances Aktiebolag Sèche-linge

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Publication number Publication date
PL2848729T3 (pl) 2019-09-30
DE102013215070A1 (de) 2015-02-05
EP2848729A1 (fr) 2015-03-18

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