EP2309053B1 - Laundry treatment machine, in particular laundry dryer - Google Patents

Laundry treatment machine, in particular laundry dryer Download PDF

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Publication number
EP2309053B1
EP2309053B1 EP09401022.0A EP09401022A EP2309053B1 EP 2309053 B1 EP2309053 B1 EP 2309053B1 EP 09401022 A EP09401022 A EP 09401022A EP 2309053 B1 EP2309053 B1 EP 2309053B1
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EP
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Prior art keywords
filter
laundry treatment
tumble dryer
treatment appliance
block
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EP09401022.0A
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German (de)
French (fr)
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EP2309053A1 (en
Inventor
Wolf-Dieter Strasinsky
Jürgen RÖSCH
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Miele und Cie KG
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Miele und Cie KG
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Priority to EP09401022.0A priority Critical patent/EP2309053B1/en
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    • 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 laundry treatment machine, in particular tumble dryer, with a drum rotatably mounted in a housing, a closable with a door feed opening, and a fan and a heater for generating a process air stream which flows through a heat exchanger, the one from the outside via a in the Front wall of the housing arranged inspection flap accessible filter insert upstream in the flow channel (see US-B-7 020 986 ).
  • a lint filter device for a tumble dryer which is equipped with a filter device arranged in the process air flow, which is designed as a double screen.
  • This twin-wire is in this case preceded by the heat exchanger device, which consists of a lint filter, which is equipped with a coarse and a fine filter.
  • the heat exchanger device which consists of a lint filter, which is equipped with a coarse and a fine filter.
  • the two filters are arranged in a two-part folding support frame, with the entire unit is placed in front of the heat exchanger.
  • the US Pat. No. 7,020,986 B1 discloses a laundry treating machine with a filter cartridge accessible from the front wall of the housing.
  • the filter cartridge comprises two filter cartridges, each designed as a sieve and held in a frame-shaped construction.
  • the invention thus has the object of developing a clothes dryer such that the handling of the filter insert is improved or simplified before a heat exchanger for inspection purposes.
  • a so-called depth filter and fine filter are positioned directly in front of the heat exchanger as a block without a frame.
  • This consists in an advantageous manner of at least two filter layers which are glued together.
  • the achievable with the present invention consist in the fact that a simple assembly and disassembly of the filter insert is given behind the access panel.
  • longer cleaning intervals are achieved through the use of such a depth filter block.
  • the filter insert consists of a depth filter block formed from at least two filter layers.
  • the filter layers are glued together and thus form a unit that is easy to handle both for assembly and for cleaning.
  • the bonding of the filter layers to produce a non-detachable connection of the layers in the surface has a point bond, wherein a peripheral adhesive bead is applied in the edge region of the two bonded filter layers. Due to this design it is achieved that, in particular, the two filter layers interact here like a one-piece block element. Due to the small-area or partial bonding, the majority of the pores remain unlocked, so that no flow loss can be detected in the process air duct.
  • the first filter layer here comprises a filter mat with a fine filter structure, which preferably has a structure in the range of 50 to 80 ppi (50 to 80 bubbles per square inch).
  • the second filter layer comprises a block-like stabilizing filter having a coarser filter structure.
  • a filter structure is preferably selected which is in the range of 20 to 50 ppi.
  • the second filter layer acts in this case stabilizing the block structure and offers a stable contact or contact surface, in particular for the fine filter structure.
  • a recess in the form of a groove for receiving a magnet is provided in the edge region of the block-like filter, preferably in the second filter layer, with which in particular the exact installation recognition is detected.
  • the depth filter block is used as a separate insert part self-sealing in the flow channel.
  • this has a box shape, wherein on its front side, so here on the fine filter side, designed as a handle grip tab or position aid is arranged.
  • the handle on the depth filter block here consists of a bow handle, which is fixed to the back of the filter mat of the filter block.
  • openings are provided in the filter block, in which the legs of the bow handle can be glued.
  • stabilizing webs or wing elements are still provided on the legs of the bow handle, which contribute in particular to the stabilization of the depth filter block.
  • the FIG. 1 shows a laundry treatment machine, which is a tumble dryer 1.
  • the tumble dryer 1, according to the FIG. 1 Is equipped with a rotatable in a housing 2 not shown drum, wherein a door 3 is provided in the front region, which closes the feed opening to the drum.
  • a blower and a heater for generating a process air flow which flows through a heat exchanger.
  • a revision flap 5 which allows access to a filter insert 6 in the flow channel 17, as in the FIG. 1 is shown in the perspective and exploded view.
  • the filter insert 6 in this case consists of a formed from at least two filter layers 7 and 8 depth filter block 9. As in particular from the Figures 2 .
  • the filter layers 7 and 8 are glued together.
  • the bonding of the filter layers 7 and 8 to the non-detachable connection of the layers 7 and 8 in the area has a point bond 10.
  • the individual adhesive dots 10 have a diameter of about 1 mm to 10 mm.
  • the bond has a peripheral adhesive bead application, so that in particular the edge regions 11 have a firm connection here Experienced.
  • the adhesive bead is about 1 mm to 10 mm wide.
  • the first filter layer 7 comprises a filter mat with a fine filter structure.
  • the filter structure advantageously has 50 to 80 ppi.
  • the second filter layer 8 comprises a block-like filter having a coarser filter structure.
  • the second filter layer preferably has a filter structure or pore structure in the range from 20 to 50 ppi.
  • the second filter layer 8 here provides the stability for the depth filter block 9, and this in particular for the first filter layer 7 arranged upstream in the flow channel 17 FIG. 2 and also from the FIG. 4 can be seen, is provided in the edge region 11 of the block-like filter, preferably in the second filter layer 8, a recess in the form of a groove 12 for a magnet, not shown.
  • the exact installation position of the depth filter block 9 can be detected in cooperation with a fixed sensor in the channel, so that the controller can only operate the dryer in an exact installation position or otherwise issue a fault message.
  • the depth filter block 9 is used as a separate insert part self-sealing in the flow channel.
  • it has a box shape, wherein on its front side designed as a handle grip tab or positioning aid is provided.
  • the handle on the depth block filter 9 is in this case designed as a bow handle 13, which is fixed to the front to the filter layer 7 of the depth block filter 9.
  • additional stabilizing webs 14 on the legs 15 and 16 of the bow handle 13 are formed, in particular the surface sweep, so that thereby an additional stability is introduced into the depth filter block 9, when the process air flows through the depth filter block 9 or if the filter block 9 is moved by means of the handle 13 in the flow channel 17.

Description

Die Erfindung betrifft eine Wäschebehandlungsmaschine, insbesondere Wäschetrockner, mit einer in einem Gehäuse drehbar gelagerten Trommel, einer mit einer Tür verschließbaren Beschickungsöffnung, sowie einem Gebläse und einer Heizeinrichtung zur Erzeugung eines Prozessluftstromes, der über einen Wärmetauscher strömt, dem ein von außen über eine in der Frontwand des Gehäuses angeordnete Revisionsklappe zugänglicher Filtereinsatz im Strömungskanal vorgeschaltet ist (siehe US-B-7 020 986 ).The invention relates to a laundry treatment machine, in particular tumble dryer, with a drum rotatably mounted in a housing, a closable with a door feed opening, and a fan and a heater for generating a process air stream which flows through a heat exchanger, the one from the outside via a in the Front wall of the housing arranged inspection flap accessible filter insert upstream in the flow channel (see US-B-7 020 986 ).

Aus dem Stand der Technik, gemäß der WO 2005/090669 A2 , ist bereits ein von außen über eine in der Frontwand des Gehäuses angeordnete Revisionsklappe zugänglicher Filtereinsatz im Strömungskanal bekannt. Dieser bekannte Filtereinsatz befindet sich im Strömungskanal in einer Art Kassette, die wie eine Schublade in den Gang durch die Revisionsklappe eingeschoben werden kann, so dass die Prozessluft über den Filtereinsatz strömt, der vor dem Wärmetauscher angeordnet ist.From the prior art, according to the WO 2005/090669 A2 , is already known from the outside via a arranged in the front wall of the housing inspection flap accessible filter insert in the flow channel. This known filter element is located in the flow channel in a kind of cassette, which can be inserted like a drawer in the passage through the access door, so that the process air flows through the filter insert, which is arranged in front of the heat exchanger.

Zudem ist auch aus der DE 197 05 616 A1 eine Flusenfiltereinrichtung für einen Wäschetrockner bekannt, die mit einer im Prozessluftstrom angeordneten Filtereinrichtung ausgestattet ist, die als Doppelsieb ausgebildet ist. Dieses Doppelsieb ist hierbei der Wärmetauschereinrichtung vorgeschaltet, welches aus einem Flusenfilter besteht, der mit einem Grob- und einem Feinfilter ausgestattet ist. Mit einer derartigen Filtereinrichtung können die im Prozessluftstrom mitgeführten Flusen ausgefiltert werden. Die darüber hinaus im Luftstrom mitgeführten kleinen Partikel von Waschmittelrückständen sind dagegen mit einer solchen Filtereinrichtung nicht auszufiltern. Gerade aber diese Partikelrückstände können den in dem Prozessluftstrom angeordneten Wärmetauscher durch Ablagerung auf der Tauscherfläche verschmutzen und im Laufe der Benutzung zu einer Wirkungsgradverschlechterung der Wärmetauschereinrichtung führen. Die beiden Filter sind dabei in einem zweiteiligen klappbaren Tragrahmen angeordnet, wobei die komplette Einheit vor dem Wärmetauscher platziert wird.In addition, also from the DE 197 05 616 A1 a lint filter device for a tumble dryer, which is equipped with a filter device arranged in the process air flow, which is designed as a double screen. This twin-wire is in this case preceded by the heat exchanger device, which consists of a lint filter, which is equipped with a coarse and a fine filter. With such a filter device, the entrained in the process air flow lint can be filtered out. In contrast, the small particles of detergent residues entrained in the air flow need not be filtered out with such a filter device. But just these particles residues can pollute the arranged in the process air flow heat exchanger by deposition on the exchanger surface and lead in the course of use to a deterioration in efficiency of the heat exchanger device. The two filters are arranged in a two-part folding support frame, with the entire unit is placed in front of the heat exchanger.

Die US 7,020,986 B1 offenbart eine Wäschebehandlungsmaschine mit einem Filtereinsatz, der von der Frontwand des Gehäuses her zugänglich ist. Der Filtereinsatz umfasst zwei Filtereinsätze, die jeweils als Sieb ausgebildet sind und in einer rahmenförmigen Konstruktion gehalten werden.The US Pat. No. 7,020,986 B1 discloses a laundry treating machine with a filter cartridge accessible from the front wall of the housing. The filter cartridge comprises two filter cartridges, each designed as a sieve and held in a frame-shaped construction.

Diese bekannten Filtereinsätze bestehen aus mehreren Bauteilen und unterschiedlichen Werkstoffen, so dass der Umgang bezüglich der erforderlichen Revisionen sich aufwendig gestaltet. Denn bei den bekannten Ausführungen des Standes der Technik ist die Entnahme und das wieder Einsetzen des Filtereinsatzes sehr aufwendig, zumal die Standzeiten relativ kurz sind. Die Tiefenfilter müssen je nach Gerät entweder nach ein paar Trockengängen bzw. nach jedem Trockengang gereinigt werden. Da die meisten Tiefenfilter von einer Schublade mit einem Rahmen aufgenommen werden, ist eine separate Abdichtung der Schublade bzw.'des Rahmens gegen das Bodenmodul bzw. der vorderen Luftführung erforderlich. Gerade die gesonderte Positionierung der einzelnen Filterebenen erfordert es, dass diese getrennt zu reinigen sind, was insbesondere auch ein aufwendiges Reinigen der Filter zur Folge hat.These known filter inserts consist of several components and different materials, so that the handling of the required revisions is costly designed. Because in the known versions of the prior art, the removal and re-insertion of the filter insert is very expensive, especially since the service life is relatively short. Depending on the device, the depth filters must be cleaned either after a few drying runs or after each drying cycle. Since most depth filters are taken up by a drawer with a frame, a separate seal of the drawer or'des Frame against the floor module or the front air duct required. Especially the separate positioning of the individual filter levels requires that they are to be cleaned separately, which in particular also has a complicated cleaning of the filter result.

Der Erfindung stellt sich somit die Aufgabe, einen Wäschetrockner derart weiterzubilden, dass die Handhabung des Filtereinsatzes vor einem Wärmetauscher zu Revisionszwecken verbessert bzw. vereinfacht wird.The invention thus has the object of developing a clothes dryer such that the handling of the filter insert is improved or simplified before a heat exchanger for inspection purposes.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden abhängigen Ansprüchen.According to the invention, this object is solved by the features of claim 1. Advantageous embodiments and modifications of the invention will become apparent from the following dependent claims.

Zur Verbesserung der Filterwirkung wird direkt vor dem Wärmetauscher ein so genannter Tiefenfilter und Feinfilter als Block ohne Rahmen positioniert. Dieser besteht hierbei in vorteilhafter Weise aus zumindest zwei Filterschichten, die miteinander verklebt sind. Die mit der Erfindung erreichbaren Vorteile bestehen nun darin, dass eine einfache Montage und Demontage des Filtereinsatzes hinter der Revisionsklappe gegeben ist. Zu dem werden durch den Einsatz eines derartigen Tiefenfilterblocks längere Reinigungsintervalle erzielt. Auch bedarf es hier keiner zusätzlichen Abdichtung zwischen dem Tiefenfilter und dem Bodenmodul bzw. der vorderen Luftführung.To improve the filter effect, a so-called depth filter and fine filter are positioned directly in front of the heat exchanger as a block without a frame. This consists in an advantageous manner of at least two filter layers which are glued together. The achievable with the present invention consist in the fact that a simple assembly and disassembly of the filter insert is given behind the access panel. In addition, longer cleaning intervals are achieved through the use of such a depth filter block. Also, there is no need for additional sealing between the depth filter and the floor module or the front air duct.

Gemäß der Erfindung besteht hierzu der Filtereinsatz aus einem aus wenigstens zwei Filterschichten gebildeten Tiefenfilterblock. Dabei sind die Filterschichten miteinander verklebt und bilden somit eine Einheit, die leicht handhabbar ist sowohl für die Montage als auch für die Reinigung. In vorteilhafter Weiterbildung weist hierbei die Verklebung der Filterschichten zur Herstellung einer unlösbaren Verbindung der Schichten in der Fläche eine Punktklebung auf, wobei im Randbereich der beiden verklebten Filterschichten eine umlaufende Kleberaupe aufgetragen wird. Aufgrund dieser Ausbildung wird erreicht, dass insbesondere die beiden Filterschichten hier wie ein einstückiges Blockelement zusammenwirken. Aufgrund der kleinflächigen bzw. partiellen Verklebung verbleibt der Großteil der Poren unverschlossen, so dass kein Strömungsverlust im Prozessluftkanal feststellbar ist.According to the invention, for this purpose, the filter insert consists of a depth filter block formed from at least two filter layers. The filter layers are glued together and thus form a unit that is easy to handle both for assembly and for cleaning. In an advantageous development, in this case the bonding of the filter layers to produce a non-detachable connection of the layers in the surface has a point bond, wherein a peripheral adhesive bead is applied in the edge region of the two bonded filter layers. Due to this design it is achieved that, in particular, the two filter layers interact here like a one-piece block element. Due to the small-area or partial bonding, the majority of the pores remain unlocked, so that no flow loss can be detected in the process air duct.

In Weiterbildung umfasst hierbei die erste Filterschicht eine Filtermatte mit einer feinen Filterstruktur, wobei diese vorzugsweise eine Struktur im Bereich von 50 bis 80 ppi (50 - 80 Blasen pro Quadratzoll) aufweist. Die zweite Filterschicht umfasst einen blockartigen stabilisierenden Filter, der eine gröbere Filterstruktur aufweist. Hierbei wird vorzugsweise eine Filterstruktur gewählt, die im Bereich von 20 bis 50 ppi liegt. Die zweite Filterschicht wirkt hierbei stabilisierend für das Blockgebilde und bietet insbesondere für die feine Filterstruktur eine stabile Auf- bzw. Anlagefläche.In a further development, the first filter layer here comprises a filter mat with a fine filter structure, which preferably has a structure in the range of 50 to 80 ppi (50 to 80 bubbles per square inch). The second filter layer comprises a block-like stabilizing filter having a coarser filter structure. In this case, a filter structure is preferably selected which is in the range of 20 to 50 ppi. The second filter layer acts in this case stabilizing the block structure and offers a stable contact or contact surface, in particular for the fine filter structure.

In Weiterbildung der Erfindung ist im Randbereich des blockartigen Filters, vorzugsweise in der zweiten Filterschicht, eine Ausnehmung in Form einer Nut zur Aufnahme eines Magneten vorgesehen, mit dem insbesondere die exakte Einbauerkennung erfasst wird. Dabei ist der Tiefenfilterblock als separates Einsatzteil selbstdichtend in den Strömungskanal einsetzbar. Um insbesondere den Tiefenfilterblock hier möglichst einfach handhaben zu können, weist dieser eine Kastenform auf, wobei an seiner Vorderseite, also hier auf der Feinfilterseite, eine als Handhabe ausgebildete Grifflasche oder Positionshilfe angeordnet ist. Die Handhabe an dem Tiefenfilterblock besteht hierbei aus einem Bügelgriff, der an der Rückseite der Filtermatte des Filterblocks festgelegt ist. Um den Bügelgriff mit dem Filterblock fest zu verbinden, sind im Filterblock Durchbrüche vorgesehen, in denen die Schenkel des Bügelgriffs verklebt werden können. In vorteilhafter Weise sind noch an den Schenkeln des Bügelgriffs so genannte Stabilisierungsstege oder Flügelelemente vorgesehen, die insbesondere zur Stabilisierung des Tiefenfilterblocks beitragen.In a further development of the invention, a recess in the form of a groove for receiving a magnet is provided in the edge region of the block-like filter, preferably in the second filter layer, with which in particular the exact installation recognition is detected. In this case, the depth filter block is used as a separate insert part self-sealing in the flow channel. In order to be able to handle in particular the depth filter block here as simple as possible, this has a box shape, wherein on its front side, so here on the fine filter side, designed as a handle grip tab or position aid is arranged. The handle on the depth filter block here consists of a bow handle, which is fixed to the back of the filter mat of the filter block. In order to firmly connect the bow handle with the filter block, openings are provided in the filter block, in which the legs of the bow handle can be glued. Advantageously, so-called stabilizing webs or wing elements are still provided on the legs of the bow handle, which contribute in particular to the stabilization of the depth filter block.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt:

Figur 1
eine perspektivische Darstellung eines Wäschetrockners mit explosionsartig dargestelltem Tiefenfilterblock im Bereich der Revisionsklappe;
Figur 2
eine weitere perspektivische Darstellung des Tiefenfilterblocks in Alleinstellung;
Figur 3
eine Draufsicht auf den Tiefenfilterblock gemäß der Figur 2; und
Figur 4
eine Seitenansicht des Tiefenfilterblocks gemäß der Figur 2.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows:
FIG. 1
a perspective view of a tumble dryer with explosive presented Tiefenfilterblock in the region of the access door;
FIG. 2
another perspective view of the depth filter block in isolation;
FIG. 3
a plan view of the depth filter block according to the FIG. 2 ; and
FIG. 4
a side view of the depth filter block according to the FIG. 2 ,

Die Figur 1 zeigt eine Wäschebehandlungsmaschine, wobei es sich hierbei um einen Wäschetrockner 1 handelt. Der Wäschetrockner 1, gemäß der Figur 1, ist mit einer in einem Gehäuse 2 drehbar nicht näher dargestellten Trommel ausgestattet, wobei im Frontbereich eine Tür 3 vorgesehen ist, die die Beschickungsöffnung zur Trommel verschließt. Weiter befindet sich in dem Gehäuse 2 ein Gebläse und eine Heizeinrichtung zur Erzeugung eines Prozessluftstromes, der über einen Wärmetauscher strömt. Dabei befindet sich in der Frontwand 4 des Gehäuses 2 eine Revisionsklappe 5, die den Zugang zu einem Filtereinsatz 6 im Strömungskanal 17 ermöglicht, so wie es in der Figur 1 in der perspektivischen und explosionsartigen Darstellung gezeigt wird. Der Filtereinsatz 6 besteht hierbei aus einem aus wenigstens zwei Filterschichten 7 und 8 gebildeten Tiefenfilterblock 9. Wie insbesondere aus den Figuren 2, 3 und 4 zu erkennen ist, sind die Filterschichten 7 und 8 miteinander verklebt. Angedeutet in der Figur 3 weist die Verklebung der Filterschichten 7 und 8 zur unlösbaren Verbindung der Schichten 7 und 8 in der Fläche eine Punktklebung 10 auf. Die einzelnen Klebepunkte 10 haben einen Durchmesser von etwa 1 mm bis 10 mm. Im Randbereich 11 weist die Verklebung einen umlaufenden Kleberaupenauftrag auf, so dass insbesondere die Randbereiche 11 hier eine feste Verbindung erfahren. Die Kleberaupe ist etwa 1 mm bis 10 mm breit. Dabei umfasst die erste Filterschicht 7 eine Filtermatte mit einer feinen Filterstruktur. Die Filterstruktur weist hierbei in vorteilhafter Weise 50 bis 80 ppi auf. Die zweite Filterschicht 8 umfasst einen blockartigen Filter, der eine gröbere Filterstruktur aufweist. Hierbei weist die zweite Filterschicht vorzugsweise eine Filterstruktur bzw. Porenstruktur im Bereich von 20 bis 50 ppi auf. Somit wird gewährleistet, dass insbesondere die zweite Filterschicht 8 hier die Stabilität für den Tiefenfilterblock 9 bereitstellt, und dies im Besonderen für die im Strömungskanal 17 vorgeschaltete erste Filterschicht 7. Wie insbesondere aus der Figur 2 und auch aus der Figur 4 zu erkennen ist, ist im Randbereich 11 des blockartigen Filters, vorzugsweise in der zweiten Filterschicht 8, eine Ausnehmung in Form einer Nut 12 für einen nicht näher dargestellten Magneten vorgesehen. Mit Hilfe des Magnets kann im Zusammenwirken mit einem feststehenden Sensor im Kanal die exakte Einbaulage des Tiefenfilterblocks 9 erkannt werden, so dass die Steuerung den Betrieb des Trockners nur bei einer exakten Einbaulage durchführen oder andernfalls eine Störmeldung ausgeben kann.The FIG. 1 shows a laundry treatment machine, which is a tumble dryer 1. The tumble dryer 1, according to the FIG. 1 , Is equipped with a rotatable in a housing 2 not shown drum, wherein a door 3 is provided in the front region, which closes the feed opening to the drum. Next is located in the housing 2, a blower and a heater for generating a process air flow, which flows through a heat exchanger. In this case, located in the front wall 4 of the housing 2, a revision flap 5, which allows access to a filter insert 6 in the flow channel 17, as in the FIG. 1 is shown in the perspective and exploded view. The filter insert 6 in this case consists of a formed from at least two filter layers 7 and 8 depth filter block 9. As in particular from the Figures 2 . 3 and 4 can be seen, the filter layers 7 and 8 are glued together. Indicated in the FIG. 3 For example, the bonding of the filter layers 7 and 8 to the non-detachable connection of the layers 7 and 8 in the area has a point bond 10. The individual adhesive dots 10 have a diameter of about 1 mm to 10 mm. In the edge region 11, the bond has a peripheral adhesive bead application, so that in particular the edge regions 11 have a firm connection here Experienced. The adhesive bead is about 1 mm to 10 mm wide. In this case, the first filter layer 7 comprises a filter mat with a fine filter structure. The filter structure advantageously has 50 to 80 ppi. The second filter layer 8 comprises a block-like filter having a coarser filter structure. In this case, the second filter layer preferably has a filter structure or pore structure in the range from 20 to 50 ppi. This ensures that, in particular, the second filter layer 8 here provides the stability for the depth filter block 9, and this in particular for the first filter layer 7 arranged upstream in the flow channel 17 FIG. 2 and also from the FIG. 4 can be seen, is provided in the edge region 11 of the block-like filter, preferably in the second filter layer 8, a recess in the form of a groove 12 for a magnet, not shown. With the help of the magnet, the exact installation position of the depth filter block 9 can be detected in cooperation with a fixed sensor in the channel, so that the controller can only operate the dryer in an exact installation position or otherwise issue a fault message.

Der Tiefenfilterblock 9 ist als separates Einsatzteil selbstdichtend in den Strömungskanal einsetzbar. Dabei weist er eine Kastenform auf, wobei an seiner Vorderseite eine als Handhabe ausgebildete Grifflasche oder Positionierhilfe vorgesehen ist. Die Handhabe an dem Tiefenblockfilter 9 ist hierbei als Bügelgriff 13 ausgebildet, der an der Vorderseite zur Filterschicht 7 des Tiefenblockfilters 9 festgelegt ist. Wie aus der Figur 2 aber auch aus den Figuren 3 und 4 zu erkennen ist, sind zusätzliche Stabilisierungsstege 14 an den Schenkeln 15 und 16 des Bügelgriffs 13 angeformt, die insbesondere die Fläche überstreichen, so dass dadurch eine zusätzliche Stabilität in den Tiefenfilterblock 9 eingebracht wird, wenn die Prozessluft durch den Tiefenfilterblock 9 strömt oder wenn der Filterblock 9 mittels der Handhabe 13 im Strömungskanal 17 bewegt wird.The depth filter block 9 is used as a separate insert part self-sealing in the flow channel. In this case, it has a box shape, wherein on its front side designed as a handle grip tab or positioning aid is provided. The handle on the depth block filter 9 is in this case designed as a bow handle 13, which is fixed to the front to the filter layer 7 of the depth block filter 9. Like from the FIG. 2 but also from the FIGS. 3 and 4 can be seen, additional stabilizing webs 14 on the legs 15 and 16 of the bow handle 13 are formed, in particular the surface sweep, so that thereby an additional stability is introduced into the depth filter block 9, when the process air flows through the depth filter block 9 or if the filter block 9 is moved by means of the handle 13 in the flow channel 17.

Claims (11)

  1. Laundry treatment appliance, in particular a tumble dryer (1), comprising a drum mounted rotatably in a housing (2), a loading opening which can be closed by a door (3), a fan, and a heating device for generating a process air stream that flows via a heat exchanger, connected upstream of which in the flow channel (17) is a filter insert (6) that is accessible from outside via an inspection flap (5) arranged in the front wall (4) of the housing (2),
    characterised in that
    the filter insert (6) consists of a frameless depth filter block (9) formed of at least two filter layers (7, 8) which have been bonded to one another.
  2. Laundry treatment appliance, in particular a tumble dryer, according to claim 1,
    characterised in that
    the bonding of the filter layers (7, 8) comprises a spot bonding (10) for permanently connecting the surfaces of the layers.
  3. Laundry treatment appliance, in particular a tumble dryer, according to claim 2,
    characterised in that
    the bonding in the edge portion (11) comprises application of an adhesive bead around the periphery.
  4. Laundry treatment appliance, in particular a tumble dryer, according to claim 1,
    characterised in that
    the first filter layer (7) comprises a filter mat having a fine filter structure.
  5. Laundry treatment appliance, in particular a tumble dryer, according to claim 4,
    characterised in that
    the first filter layer (7) preferably comprises a filter structure in the range of from 50 to 80 ppi.
  6. Laundry treatment appliance, in particular a tumble dryer, according to claim 1,
    characterised in that
    the second filter layer (8) has a block-like filter having a coarser filter structure.
  7. Laundry treatment appliance, in particular a tumble dryer, according to claim 6,
    characterised in that
    the second filter layer (8) preferably comprises a filter structure in the range of from 20 to 50 ppi.
  8. Laundry treatment appliance, in particular a tumble dryer, according to claim 7,
    characterised in that
    a recess in the form of a groove (12) is provided for a magnet in the edge portion (11) of the block-like filter, preferably in the second filter layer (8), for accurately detecting installation.
  9. Laundry treatment appliance, in particular a tumble dryer, according to claim 1,
    characterised in that
    the depth filter block (9) can be inserted as a separate insert into the flow channel in a self-sealing manner.
  10. Laundry treatment appliance, in particular a tumble dryer, according to claim 9,
    characterised in that
    the depth filter block (9) is box-shaped, a grip tab or positioning means formed as a handle being arranged on the front of said depth filter block.
  11. Laundry treatment appliance, in particular a tumble dryer, according to claim 10,
    characterised in that
    the handle on the depth filter block (9) is formed as a stirrup-shaped handle (13) which is fixed to the rear side of the filter mat in the depth filter block (9).
EP09401022.0A 2009-10-09 2009-10-09 Laundry treatment machine, in particular laundry dryer Active EP2309053B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09401022.0A EP2309053B1 (en) 2009-10-09 2009-10-09 Laundry treatment machine, in particular laundry dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09401022.0A EP2309053B1 (en) 2009-10-09 2009-10-09 Laundry treatment machine, in particular laundry dryer

Publications (2)

Publication Number Publication Date
EP2309053A1 EP2309053A1 (en) 2011-04-13
EP2309053B1 true EP2309053B1 (en) 2016-11-02

Family

ID=42041896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09401022.0A Active EP2309053B1 (en) 2009-10-09 2009-10-09 Laundry treatment machine, in particular laundry dryer

Country Status (1)

Country Link
EP (1) EP2309053B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108004734A (en) * 2017-11-14 2018-05-08 无锡小天鹅股份有限公司 Dryer
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

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PL2455537T3 (en) * 2010-11-19 2014-12-31 Miele & Cie Washer dryer with filter insert
EP2527529B1 (en) * 2011-05-27 2014-07-16 Electrolux Home Products Corporation N.V. Laundry dryer
SI2392723T1 (en) * 2011-09-12 2014-12-31 V-Zug Ag Tumble dryer with a filter and method for operating a tumble dryer
EP2392724A3 (en) * 2011-09-12 2012-05-02 V-Zug AG Household appliance, in particular laundry dryer, with a filtering device
DE102011055090B3 (en) * 2011-11-07 2012-12-27 Miele & Cie. Kg Laundry treatment machine such as washing machine or tumble dryer
SI2664706T1 (en) * 2012-05-14 2014-10-30 Miele & Cie. Kg Tumble dryer
DE102014211304A1 (en) * 2014-06-13 2015-12-17 BSH Hausgeräte GmbH Filter device for a laundry treatment machine and laundry treating machine with such
DE102014225905A1 (en) 2014-12-15 2016-06-16 BSH Hausgeräte GmbH Filter device and dryer containing the filter device
DE102015205448A1 (en) * 2015-03-25 2016-11-10 BSH Hausgeräte GmbH Maintenance cover for a household appliance and household appliance
WO2017194511A1 (en) 2016-05-09 2017-11-16 Arcelik Anonim Sirketi A laundry dryer comprising a filter
CN109554898A (en) * 2018-12-06 2019-04-02 无锡小天鹅股份有限公司 Top opening barrel washing machine

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DE19705616A1 (en) 1997-02-14 1998-08-20 Miele & Cie Fly lint filter unit for laundry dryer
ATE378454T1 (en) 2004-03-16 2007-11-15 Arcelik As WASHER DRYER
JP4494169B2 (en) 2004-11-11 2010-06-30 パナソニック株式会社 Drum type washer / dryer
DE102008016815B4 (en) * 2008-04-01 2011-06-30 Miele & Cie. KG, 33332 Laundry treatment machine, in particular tumble dryer

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Cited By (3)

* 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
CN108004734A (en) * 2017-11-14 2018-05-08 无锡小天鹅股份有限公司 Dryer

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