EP2107155A2 - Laundry treatment machine, in particular laundry dryer - Google Patents

Laundry treatment machine, in particular laundry dryer Download PDF

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Publication number
EP2107155A2
EP2107155A2 EP09003937A EP09003937A EP2107155A2 EP 2107155 A2 EP2107155 A2 EP 2107155A2 EP 09003937 A EP09003937 A EP 09003937A EP 09003937 A EP09003937 A EP 09003937A EP 2107155 A2 EP2107155 A2 EP 2107155A2
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EP
European Patent Office
Prior art keywords
filter block
depth filter
tumble dryer
laundry treating
treating machine
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
EP09003937A
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German (de)
French (fr)
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EP2107155A3 (en
EP2107155B1 (en
Inventor
Viktor Eichwald
Jürgen RÖSCH
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Miele und Cie KG
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Miele und Cie KG
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Publication date
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Priority to PL09003937T priority Critical patent/PL2107155T3/en
Publication of EP2107155A2 publication Critical patent/EP2107155A2/en
Publication of EP2107155A3 publication Critical patent/EP2107155A3/en
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Publication of EP2107155B1 publication Critical patent/EP2107155B1/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
    • 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
    • D06F58/45—Cleaning or disinfection of machine parts, e.g. of heat exchangers or filters
    • 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
    • D06F2105/34—Filtering, e.g. control of lint removal devices

Definitions

  • the invention relates to a laundry treatment machine, in particular tumble dryer with a rotatably mounted in a housing drum, a closable with a door feed opening, and a fan and a heater for generating a process air stream, which is intended to flow through the drum and a heat exchanger, wherein the heat exchanger is preceded by a filter insert accessible from the outside via an inspection flap arranged in the front wall of the housing in a flow channel for the process air.
  • a lint filter device for a tumble dryer known.
  • the known clothes dryer is equipped with a filter device arranged in the process air stream, 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 hinged support frame, the entire unit is placed in front of the heat exchanger.
  • a drawer lint filter devices formed in the form of a drawer lint filter devices.
  • the drawers are located behind a mounting flap and, depending on the version, only contain a depth filter or a depth filter with flat filters connected in front of it, a so-called screen mesh.
  • These units consist of several components and different materials.
  • the depth filters can only be removed from this drawer after unfolding or removing several components.
  • the removal and replacement of the depth filter is sometimes very expensive.
  • the operating times are relatively short, the depth filter must be cleaned depending on the device either after a few drying runs or after each drying cycle. Since most depth filters are accommodated by a drawer with a frame, a separate sealing of the drawer or the frame against the floor module or the front air duct is required.
  • the invention thus raises the problem of further developing a clothes dryer with a filter insert for the heat exchanger in such a way that the handling is substantially improved and simplified, the operating times of the filter insert being substantially extended.
  • a so-called depth filter, fine filter is positioned as a block without frame, directly in front of the heat exchanger.
  • the achievable with the present invention consist in the fact that a simple assembly and disassembly of the depth filter can be done behind the access door.
  • prolonged cleaning intervals are achieved through the use of such a depth filter block. Also, it requires no additional seals between the depth filter and the floor module or the front air duct.
  • the filter insert consists of a depth filter block for the filtration of fine dust or fine dust, which was not filtered by the sieves lying in front of it.
  • the depth filter block is self-sealing as a separate insert in the flow channel used.
  • the depth block has a box shape, wherein on its front side designed as a handle grip tab is arranged as a positioning aid.
  • the depth filter block can be easily and simply handled, so that it can be easily pressed into the cross section of the flow channel.
  • the box shape has an excess compared to the flow channel cross-section, which in particular ensures that formed as a box shape depth filter block is sealingly inserted in the flow channel cross-section, so that no portion of the process air can flow past the filter element.
  • the handle is formed on the depth filter block as a bow handle, which is fixed to the back of the depth filter block.
  • the depth filter block here consists of foam, wherein the foam used is formed for the insert on PUR-based with subsequently opened pores.
  • the depth filter block can be sucked off or easily and simply cleaned under running water.
  • the depth filter block designed as an insert part cooperates with a sensor for detecting the cleaning intervals.
  • FIGS. 1 . 2 and 3 each show in perspective a laundry treatment machine and here in particular a tumble dryer 1.
  • the tumble dryer 1 in this case comprises a housing 2 in which a rotatably mounted drum, not shown, is provided.
  • a door 3 In the front of the housing 2 is a door 3, which covers the feed opening.
  • the three figures each show the clothes dryer 1 in the closed situation.
  • In the housing 2 are further a fan and a heater for generating a process air flow. This flows via a heat exchanger 14, which is arranged in the region of the bottom of the housing 2.
  • a filter element 4 In front of the heat exchanger 14 is a filter element 4, as he, for example, in the Figures 2 and 3 can be seen, this filter element 4 is arranged in front of the heat exchanger 14, based on the direction of the process air flow.
  • This filter element 4 is held from the outside via a arranged in the front wall 5 of the housing 2 inspection flap 6 in the flow channel, the only hinted here can be seen.
  • the flow channel is formed here by the cross section, as he, for example, from the open situation according to Fig. 2 or 3 can be seen.
  • the depth filter block 7 is in this case used as a separate insert itself sealing in the flow channel 8.
  • the depth filter block 7 is designed such that it fills the entire flow channel cross section and is pressed into this, as it is the situation of FIG. 3 shows where the depth filter block 7 is used disappeared in the machine housing 2. Is the depth filter block 7, as he is in the situation of FIG. 2 is used, is still used according to the inspection flap 6 with heat exchanger cover 9 in the opening cross-section of the front wall 5, so that the closed image results, as shown in the FIG. 1 is shown.
  • the depth filter block 7 in this case has a box shape, as they better and more clearly from the FIG. 4 it can be seen where, in isolated representation, the depth filter block 7 is shown from the front and the back. Like from the FIG. 4 can be seen, is arranged on its front side 10 designed as a handle 11 grip tab as a so-called positioning aid.
  • the box shape in this case has an excess compared to the flow channel cross section, so that a slight squeezing into the flow channel is required when inserting the depth filter block 7 in order to achieve in this way a sealing insert of the depth filter block 7 in the flow channel 8.
  • the handle 11 is formed on the depth filter block 7 as a bow handle 12 which is fixed to the back 13 of the depth filter block 7.
  • formed as a depth filter block 7 item consists of foam.
  • the foam used for the insert is formed on a PUR basis with subsequently opened pores.
  • a bubble density in the range between 20 to 50 bubbles per square inch (PPI) with a foam thickness of 20 to 50 mm has proven to be advantageous, so that a good filter effect and a good flow through the process air flow is achieved.
  • the foam used can be sucked off or washed out under running water.
  • the depth filter block 7 designed as an insert part can cooperate with a sensor for detecting the cleaning intervals.
  • the depth filter block 7 is positioned in the lower parts of the front air duct 8 in the area in front of the heat exchanger 14 behind the heat exchanger cover 9 and the inspection flap 6.
  • the filter element 4 is added without additional frame or drawer in the front air duct or in the floor module.
  • the filter element 4 assumes not only the filter but also a sealing function. This eliminates the need for a separate seal.
  • To remove the filter element 4 only the access door 6 and the heat exchanger cover 9 need to be dismantled.
  • the filter element 4 is then freely accessible and can be removed from the device 2. Due to the open-pore structure, the filter element 4 only has to be removed and cleaned after several to a few hundred drying cycles. For this, only the depth filter block 7 must be pulled out and washed out under running water.

Abstract

The laundry treatment machine has a drum which is supported in a housing (2) in a swiveling manner. A loading opening is closed with a door (3). A blower and a heating unit are provided for generating a process air flow. A filter cartridge (4) is made of a stretch forming filter block (7) for filtering dust. The stretch forming filter block is inserted as separate insertion part sealed in a flow channel (8). The insertion part is formed as stretch forming filter block and is made of foam plastic.

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 dafür vorgesehen ist, durch die Trommel sowie über einen Wärmetauscher zu strömen, wobei dem Wärmetauscher ein von außen über eine in der Frontwand des Gehäuses angeordnete Revisionsklappe zugänglicher Filtereinsatz in einem Strömungskanal für die Prozessluft vorgeschaltet ist.The invention relates to a laundry treatment machine, in particular tumble dryer with a rotatably mounted in a housing drum, a closable with a door feed opening, and a fan and a heater for generating a process air stream, which is intended to flow through the drum and a heat exchanger, wherein the heat exchanger is preceded by a filter insert accessible from the outside via an inspection flap arranged in the front wall of the housing in a flow channel for the process air.

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 access door filter insert in the flow channel known. 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. Der bekannte Wäschetrockner ist mit einer im Prozessluftstrom angeordneten Filtereinrichtung ausgestattet, 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 im 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 zweiteilig 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 known. The known clothes dryer is equipped with a filter device arranged in the process air stream, 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 hinged support frame, the entire unit is placed in front of the heat exchanger.

Bekannt sind auch beispielsweise, wie oben bereits schon beschrieben, in Form einer Schublade ausgebildete Flusenfiltereinrichtungen. Die Schubladen befinden sich hinter einer Montageklappe und beinhalten je nach Ausführung nur einen Tiefenfilter bzw. einen Tiefenfilter mit davor geschalteten Flachfiltern, einem so genannten Siebgewebe. Diese Einheiten bestehen aus mehreren Bauteilen und unterschiedlichen Werkstoffen. Die Tiefenfilter können aus dieser Schublade erst nach dem Aufklappen bzw. Entfernen mehrerer Bauteile entnommen werden. Dabei befindet sich außerdem noch eine weitere Tiefenfilterebene hinter der Schubladenlösung direkt vor dem Wärmetauscher, wobei der Tiefenfilter, eine lose Schaumstoffmatte ohne Rahmen, zwischen einem Metallgitter und einer Kante des Moduls gesteckt wird.Also known, for example, as already described above, formed in the form of a drawer lint filter devices. The drawers are located behind a mounting flap and, depending on the version, only contain a depth filter or a depth filter with flat filters connected in front of it, a so-called screen mesh. These units consist of several components and different materials. The depth filters can only be removed from this drawer after unfolding or removing several components. There is also another depth filter layer behind the drawer solution directly in front of the heat exchanger, with the depth filter, a loose foam mat without frame, inserted between a metal grid and an edge of the module.

Als nachteilig bei den geschilderten Ausführungen des Standes der Technik wird es angesehen, dass bei manchen Wäschetrocknern, insbesondere Wärmepumpen-Wäschetrocknern, die Wärmetauscher fest im Bodenmodul eingebaut sind und daher eine Reinigung nicht vorgenommen werden kann. Das bekannte Flusenfilterkonzept, Flusensieb/Flachfilter in der Tür und zwei Zusatzsiebe im Einfüllring, bieten keinen ausreichenden Schutz für den Wärmetauscher vor Verschmutzungen. Auf den Wärmetauscherlamellen kann sich Feinstaub absetzen, was zur Wirkungsgradverschlechterung bis hin zum Totalausfall des Gerätes führen kann. Zur Verbesserung der Filterwirkung soll nun unten am Gerät direkt vor dem Wärmetauscher ein so genannter Tiefenfilter, Feinfilter als Block ohne Rahmen, positioniert werden.A disadvantage of the described embodiments of the prior art, it is considered that some dryers, especially heat pump tumble dryers, the heat exchangers are permanently installed in the floor module and therefore cleaning can not be made. The well-known lint filter concept, lint filter / flat filter in the door and two additional filters in the filling ring, do not provide sufficient protection for the heat exchanger against contamination. Fine dust can settle on the heat exchanger fins, which can lead to a reduction in efficiency or even total failure of the device. To improve the filter effect, a so-called depth filter, fine filter as a block without frame, should now be positioned at the bottom of the device, directly in front of the heat exchanger.

Bei den bekannten Ausführungen des Standes der Technik ist die Entnahme und das Wiedereinsetzen des Tiefenfilters zum Teil sehr aufwendig. Die Betriebszeiten sind relativ kurz, die Tiefenfilter müssen je nach Gerät entweder nach einigen wenigen 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.In the known embodiments of the prior art, the removal and replacement of the depth filter is sometimes very expensive. The operating times are relatively short, the depth filter must be cleaned depending on the device either after a few drying runs or after each drying cycle. Since most depth filters are accommodated by a drawer with a frame, a separate sealing of the drawer or the frame against the floor module or the front air duct is required.

Der Erfindung stellt sich somit das Problem, einen Wäschetrockner mit einem Filtereinsatz für den Wärmetauscher derart weiter zu bilden, dass das Handling wesentlich verbessert und vereinfacht wird, wobei die Betriebszeiten des Filtereinsatzes wesentlich verlängert werden.The invention thus raises the problem of further developing a clothes dryer with a filter insert for the heat exchanger in such a way that the handling is substantially improved and simplified, the operating times of the filter insert being substantially extended.

Erfindungsgemäß wird dieses Problem durch die Merkmale des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by the features of patent claim 1. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims.

Zur Verbesserung der Filterwirkung wird direkt vor dem Wärmetauscher ein so genannter Tiefenfilter, Feinfilter als Block ohne Rahmen, positioniert. Die mit der Erfindung erreichbaren Vorteile bestehen nun darin, dass eine einfache Montage und Demontage des Tiefenfilters hinter der Revisionsklappe erfolgen kann. Zu dem werden durch den Einsatz eines derartigen Tiefenfilterblocks verlängerte Reinigungsintervalle erzielt. Auch bedarf es hier keiner zusätzlichen Abdichtungen zwischen dem Tiefenfilter und dem Bodenmodul bzw. der vorderen Luftführung.To improve the filter effect, a so-called depth filter, fine filter is positioned as a block without frame, directly in front of the heat exchanger. The achievable with the present invention consist in the fact that a simple assembly and disassembly of the depth filter can be done behind the access door. In addition, prolonged cleaning intervals are achieved through the use of such a depth filter block. Also, it requires no additional seals between the depth filter and the floor module or the front air duct.

Gemäß der Erfindung besteht hierzu der Filtereinsatz aus einem Tiefenfilterblock zur Filtrierung von feinem Staub bzw. Feinstaub, der von den davor liegenden Sieben nicht gefiltert wurde. Der Tiefenfilterblock ist als separates Einsatzteil selbst dichtend in den Strömungskanal einsetzbar. Dabei weist der Tiefenblock eine Kastenform auf, wobei an seiner Vorderseite eine als Handhabe ausgebildete Grifflasche als Positionierhilfe angeordnet ist. Somit lässt sich insbesondere der Tiefenfilterblock leicht und einfach handhaben, so dass er einfach in den Querschnitt des Strömungskanals eingedrückt werden kann. Dabei verfügt die Kastenform über ein Übermaß gegenüber dem Strömungskanalquerschnitt, was insbesondere sicherstellt, dass der als Kastenform ausgebildete Tiefenfilterblock dichtend im Strömungskanalquerschnitt einsetzbar ist, so dass kein Anteil der Prozessluft an dem Filtereinsatz vorbeiströmen kann.According to the invention for this purpose, the filter insert consists of a depth filter block for the filtration of fine dust or fine dust, which was not filtered by the sieves lying in front of it. The depth filter block is self-sealing as a separate insert in the flow channel used. In this case, the depth block has a box shape, wherein on its front side designed as a handle grip tab is arranged as a positioning aid. Thus, in particular, the depth filter block can be easily and simply handled, so that it can be easily pressed into the cross section of the flow channel. In this case, the box shape has an excess compared to the flow channel cross-section, which in particular ensures that formed as a box shape depth filter block is sealingly inserted in the flow channel cross-section, so that no portion of the process air can flow past the filter element.

In Weiterbildung ist die Handhabe an dem Tiefenfilterblock als Bügelgriff ausgebildet, der an der Rückseite des Tiefenfilterblocks festgelegt ist. Der Tiefenfilterblock besteht hierbei aus Schaumstoff, wobei der verwendete Schaumstoff für das Einsatzteil auf PUR-Basis mit nachträglich geöffneten Poren gebildet ist. Der Tiefenfilterblock lässt sich hierbei absaugen oder unter fließendem Wasser leicht und einfach reinigen. In Weiterbildung der Erfindung ist dabei vorgesehen, dass der als Einsatzteil ausgebildete Tiefenfilterblock mit einem Sensor zur Erkennung der Reinigungsintervalle zusammenwirkt.In a further development, the handle is formed on the depth filter block as a bow handle, which is fixed to the back of the depth filter block. The depth filter block here consists of foam, wherein the foam used is formed for the insert on PUR-based with subsequently opened pores. The depth filter block can be sucked off or easily and simply cleaned under running water. In a further development of the invention, it is provided that the depth filter block designed as an insert part cooperates with a sensor for detecting the cleaning intervals.

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;
Figur 2
eine weitere perspektivische Darstellung eines Wäschetrockners mit explosionsartig geöffneter Revisionsklappe;
Figur 3
eine weitere perspektivische Darstellung des Wäschetrockners ohne Revisionsklappe; und
Figur 4
eine Einzelansicht in Vorder- und Rückansicht ebenfalls in der Perspektive von dem erfindungsgemäßen Tiefenfilterblock.
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 clothes dryer;
FIG. 2
a further perspective view of a tumble dryer with explosively open inspection flap;
FIG. 3
another perspective view of the tumble dryer without access door; and
FIG. 4
a single view in front and rear view also in the perspective of the depth filter block according to the invention.

Die Figuren 1, 2 und 3 zeigen jeweils in der Perspektive eine Wäschebehandlungsmaschine und hier insbesondere einen Wäschetrockner 1. Der Wäschetrockner 1 umfasst hierbei ein Gehäuse 2 in dem eine nicht näher dargestellte drehbar gelagerte Trommel vorgesehen ist. In der Frontseite des Gehäuses 2 befindet sich eine Tür 3, die die Beschickungsöffnung abdeckt. Die drei Figuren zeigen jeweils den Wäschetrockner 1 in der geschlossenen Situation. In dem Gehäuse 2 befinden sich weiter ein Gebläse und eine Heizeinrichtung zur Erzeugung eines Prozessluftstromes. Dieser strömt über einen Wärmetauscher 14, der im Bereich des Bodens des Gehäuses 2 angeordnet ist. Vor dem Wärmetauscher 14 befindet sich ein Filtereinsatz 4, wie er beispielsweise in den Figuren 2 und 3 zu erkennen ist, wobei dieser Filtereinsatz 4 vor dem Wärmetauscher 14, bezogen auf die Richtung des Prozessluftstromes, angeordnet ist. Dieser Filtereinsatz 4 wird von außen über eine in der Frontwand 5 des Gehäuses 2 angeordnete Revisionsklappe 6 im Strömungskanal vorgehalten, der hier nur andeutungsweise zu erkennen ist. Der Strömungskanal wird hier durch den Querschnitt gebildet, wie er beispielsweise aus der geöffneten Situation gemäß Fig. 2 oder 3 zu erkennen ist.The FIGS. 1 . 2 and 3 each show in perspective a laundry treatment machine and here in particular a tumble dryer 1. The tumble dryer 1 in this case comprises a housing 2 in which a rotatably mounted drum, not shown, is provided. In the front of the housing 2 is a door 3, which covers the feed opening. The three figures each show the clothes dryer 1 in the closed situation. In the housing 2 are further a fan and a heater for generating a process air flow. This flows via a heat exchanger 14, which is arranged in the region of the bottom of the housing 2. In front of the heat exchanger 14 is a filter element 4, as he, for example, in the Figures 2 and 3 can be seen, this filter element 4 is arranged in front of the heat exchanger 14, based on the direction of the process air flow. This filter element 4 is held from the outside via a arranged in the front wall 5 of the housing 2 inspection flap 6 in the flow channel, the only hinted here can be seen. The flow channel is formed here by the cross section, as he, for example, from the open situation according to Fig. 2 or 3 can be seen.

Wie aus den Figuren 2, 3 und 4 zu erkennen ist, besteht hierbei der Filtereinsatz 4 aus einem Tiefenfilterblock 7 zur Filtrierung von Feinstaub. Der Tiefenfilterblock 7 ist hierbei als separates Einsatzteil selbst dichtend in den Strömungskanal 8 einsetzbar. Diese Einsatzsituation ergibt sich in Zusammenschau aus den Figuren 2 und 3, wobei in der explosionsartigen Darstellung der Figur 2 der Tiefenfilterblock 7 derart gestaltet ist, dass er den gesamten Strömungskanalquerschnitt ausfüllt und in diesen eingedrückt wird, so wie es die Situation der Figur 3 zeigt, wo der Tiefenfilterblock 7 im Maschinengehäuse 2 verschwunden eingesetzt ist. Ist der Tiefenfilterblock 7, wie er in der Situation der Figur 2 dargestellt ist, eingesetzt, wird noch entsprechend die Revisionsklappe 6 mit Wärmetauscherdeckel 9 in den Öffnungsquerschnitt der Frontwand 5 eingesetzt, so dass sich das geschlossene Bild ergibt, wie es in der Figur 1 dargestellt ist.Like from the Figures 2 . 3 and 4 can be seen, in this case consists of the filter element 4 from a depth filter block 7 for the filtration of fine dust. The depth filter block 7 is in this case used as a separate insert itself sealing in the flow channel 8. This situation arises in synopsis of the Figures 2 and 3 , wherein in the exploded view of the FIG. 2 the depth filter block 7 is designed such that it fills the entire flow channel cross section and is pressed into this, as it is the situation of FIG. 3 shows where the depth filter block 7 is used disappeared in the machine housing 2. Is the depth filter block 7, as he is in the situation of FIG. 2 is used, is still used according to the inspection flap 6 with heat exchanger cover 9 in the opening cross-section of the front wall 5, so that the closed image results, as shown in the FIG. 1 is shown.

Der Tiefenfilterblock 7 weist hierbei eine Kastenform auf, wie sie besser und deutlicher aus der Figur 4 zu erkennen ist, wo in isolierter Darstellung der Tiefenfilterblock 7 von der Vorder- und der Rückseite gezeigt wird. Wie aus der Figur 4 zu erkennen ist, ist an seiner Vorderseite 10 eine als Handhabe 11 ausgebildete Grifflasche als so genannte Positionierhilfe angeordnet. Die Kastenform weist hierbei ein Übermaß gegenüber dem Strömungskanalquerschnitt auf, so dass beim Einsetzen des Tiefenfilterblocks 7 ein leichtes Einquetschen in den Strömungskanal erforderlich ist, um auf diese Weise einen dichtenden Einsatz des Tiefenfilterblocks 7 im Strömungskanal 8 zu erreichen. Wie aus der Figur 4 zu erkennen ist, ist die Handhabe 11 an dem Tiefenfilterblock 7 als Bügelgriff 12 ausgebildet, der an der Rückseite 13 des Tiefenfilterblocks 7 festgelegt ist. Dabei besteht das als Tiefenfilterblock 7 ausgebildete Einzelteil aus Schaumstoff. Der verwendete Schaumstoff für das Einsatzteil ist auf PUR-Basis mit nachträglich geöffneten Poren gebildet. Als vorteilhaft hat sich eine Blasendichte im Bereich zwischen 20 bis 50 Blasen pro Quadratzoll (PPI) bei einer Schaumstoffdicke von 20 bis 50 mm erwiesen, so dass eine gute Filterwirkung und ein gutes Durchströmen für den Prozessluftstrom erreicht wird. Der verwendete Schaumstoff kann hierbei abgesaugt oder unter fließendem Wasser ausgewaschen werden.The depth filter block 7 in this case has a box shape, as they better and more clearly from the FIG. 4 it can be seen where, in isolated representation, the depth filter block 7 is shown from the front and the back. Like from the FIG. 4 can be seen, is arranged on its front side 10 designed as a handle 11 grip tab as a so-called positioning aid. The box shape in this case has an excess compared to the flow channel cross section, so that a slight squeezing into the flow channel is required when inserting the depth filter block 7 in order to achieve in this way a sealing insert of the depth filter block 7 in the flow channel 8. Like from the FIG. 4 can be seen, the handle 11 is formed on the depth filter block 7 as a bow handle 12 which is fixed to the back 13 of the depth filter block 7. In this case, formed as a depth filter block 7 item consists of foam. The foam used for the insert is formed on a PUR basis with subsequently opened pores. A bubble density in the range between 20 to 50 bubbles per square inch (PPI) with a foam thickness of 20 to 50 mm has proven to be advantageous, so that a good filter effect and a good flow through the process air flow is achieved. The foam used can be sucked off or washed out under running water.

Nach einer vorteilhaften Weiterbildung der Erfindung kann hierbei der als Einsatzteil ausgebildete Tiefenfilterblock 7 mit einem Sensor zur Erkennung der Reinigungsintervalle zusammenwirken.According to an advantageous development of the invention, the depth filter block 7 designed as an insert part can cooperate with a sensor for detecting the cleaning intervals.

Um die Effizienz der Flusenfilterung in einem Kondensationstrockner 1 zu steigern, und um das Gerät vor der möglichen Fehlbedienung zu schützen, wird in den Unterteilen der vorderen Luftführung 8 im Bereich vor dem Wärmetauscher 14 hinter dem Wärmetauscherdeckel 9 und der Revisionsklappe 6 der Tiefenfilterblock 7 positioniert. Der Filtereinsatz 4 wird ohne zusätzlichen Rahmen oder Schublade in der vorderen Luftführung bzw. im Bodenmodul aufgenommen. Der Tiefenfilterblock 7 übernimmt dabei neben der Filter- auch eine Dichtfunktion. Das macht eine separate Abdichtung überflüssig. Zur Entnahme des Filtereinsatzes 4 müssen lediglich die Revisionsklappe 6 und der Wärmetauscherdeckel 9 demontiert werden. Der Filtereinsatz 4 liegt dann frei zugänglich und kann aus dem Gerät 2 entnommen werden. Der Filtereinsatz 4 muss aufgrund der offenporigen Struktur erst nach mehreren, bis zu einigen hundert Trockenvorgängen ausgebaut und gereinigt werden. Dafür muss lediglich der Tiefenfilterblock 7 herausgezogen werden und unter fließendem Wasser ausgewaschen werden.In order to increase the efficiency of the lint filtering in a condensation dryer 1, and to protect the device against possible incorrect operation, the depth filter block 7 is positioned in the lower parts of the front air duct 8 in the area in front of the heat exchanger 14 behind the heat exchanger cover 9 and the inspection flap 6. The filter element 4 is added without additional frame or drawer in the front air duct or in the floor module. Of the Depth filter block 7 assumes not only the filter but also a sealing function. This eliminates the need for a separate seal. To remove the filter element 4, only the access door 6 and the heat exchanger cover 9 need to be dismantled. The filter element 4 is then freely accessible and can be removed from the device 2. Due to the open-pore structure, the filter element 4 only has to be removed and cleaned after several to a few hundred drying cycles. For this, only the depth filter block 7 must be pulled out and washed out under running water.

Claims (8)

Wäschebehandlungsmaschine insbesondere Wäschetrockner (1) mit einer in einem Gehäuse (2) drehbar gelagerten Trommel, einer mit einer Tür (3) verschließbaren Beschickungsöffnung, sowie einem Gebläse und einer Heizeinrichtung zur Erzeugung eines Prozessluftstromes, der dafür vorgesehen ist, durch die Trommel sowie über einen Wärmetauscher (14) zu strömen, wobei dem Wärmetauscher (14) ein von außen über eine in der Frontwand (5) des Gehäuses (2) angeordnete Revisionsklappe (6) zugänglicher Filtereinsatz (4) in einem Strömungskanal (8) für die Prozessluft vorgeschaltet ist,
dadurch gekennzeichnet,
dass der Filtereinsatz (4) aus einem Tiefenfilterblock (7) zur Filtrierung von Staub besteht, wobei der Tiefenfilterblock (7) als separates Einsatzteil selbst dichtend in den Strömungskanal (8) einsetzbar ist.Laundry treating machine, in particular a tumble dryer (1) having a drum rotatably mounted in a housing (2), a feed opening closable by a door (3), and a fan and a heater for generating a process air flow provided therefor through the drum and over a drum Heat exchanger (14) to flow, wherein the heat exchanger (14) from the outside via a in the front wall (5) of the housing (2) arranged inspection flap (6) accessible filter insert (4) is connected upstream in a flow channel (8) for the process air .
characterized,
in that the filter insert (4) consists of a depth filter block (7) for filtering dust, wherein the depth filter block (7) can be inserted in a self-sealing manner into the flow channel (8) as a separate insert part. Wäschebehandlungsmaschine insbesondere Wäschetrockner (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass der Tiefenfilterblock (7) eine Kastenform aufweist, wobei die Kastenform ein Übermaß gegenüber dem Querschnitt des Strömungskanals (8) aufweist.Laundry treating machine, in particular tumble dryer (1) according to claim 1,
characterized,
that the depth filter block (7) having a box shape, said box shape having an oversize relative to the cross-section of the flow channel (8). Wäschebehandlungsmaschine insbesondere Wäschetrockner (1) nach einem der Ansprüche 1 bis 2,
dadurch gekennzeichnet,
dass der Tiefenfilterblock (7) an seiner Vorderseite (10) eine als Handhabe (11) ausgebildete Grifflasche oder Positionierhilfe besitzt.Laundry treating machine, in particular tumble dryer (1) according to one of claims 1 to 2,
characterized,
that the depth filter block (7) on its front side (10) has an as a handle (11) formed gripping tab or positioning aid. Wäschebehandlungsmaschine insbesondere Wäschetrockner (1) nach Anspruch 4,
dadurch gekennzeichnet,
dass die Handhabe (11) an dem Tiefenfilterblock (7) als Bügelgriff (12) ausgebildet ist, der an der Rückseite (13) des Tiefenfilterblocks (7) festgelegt ist.Laundry treating machine, in particular tumble dryer (1) according to claim 4,
characterized,
in that the handle (11) on the depth filter block (7) is designed as a bow-shaped handle (12) which is fixed on the rear side (13) of the depth filter block (7). Wäschebehandlungsmaschine insbesondere Wäschetrockner (1) nach Anspruch 1 bis 4,
dadurch gekennzeichnet,
dass das als Tiefenfilterblock (7) ausgebildete Einsatzteil aus Schaumstoff besteht.Laundry treating machine, in particular tumble dryer (1) according to claims 1 to 4,
characterized,
that the insert formed as a depth filter block (7) consists of foam. Wäschebehandlungsmaschine insbesondere Wäschetrockner (1) nach Anspruch 5,
dadurch gekennzeichnet,
dass der verwendete Schaumstoff für das Einsatzteil auf PUR-Basis mit nachträglich geöffneten Poren gebildet ist.Laundry treating machine, in particular tumble dryer (1) according to claim 5,
characterized,
that the foam used is formed for the insert part on the basis of PUR with subsequently opened pores. Wäschebehandlungsmaschine insbesondere Wäschetrockner (1) nach Anspruch 5 oder 6,
dadurch gekennzeichnet,
dass der verwendete Schaumstoff absaugbar oder unter fließendem Wasser auswaschbar ist.Laundry treating machine, in particular tumble dryer (1) according to claim 5 or 6,
characterized,
that the foam used is sucked or leachable under running water. Wäschebehandlungsmaschine insbesondere Wäschetrockner (1) nach Anspruch 1 bis 7,
dadurch gekennzeichnet,
dass der als Einsatzteil ausgebildete Tiefenfilterblock (7) mit einem Sensor zur Erkennung der Reinigungsinterwalle zusammenwirkt.Laundry treating machine, in particular tumble dryer (1) according to claims 1 to 7,
characterized,
in that the depth filter block (7) formed as an insert part cooperates with a sensor for detecting the cleaning intervals.
EP09003937.1A 2008-04-01 2009-03-19 Laundry treatment machine, in particular laundry dryer Active EP2107155B1 (en)

Priority Applications (1)

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DE102008016815A DE102008016815B4 (en) 2008-04-01 2008-04-01 Laundry treatment machine, in particular tumble dryer

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EP2248939A1 (en) * 2010-02-15 2010-11-10 V-Zug AG Household appliance, in particular laundry dryer
EP2309053A1 (en) * 2009-10-09 2011-04-13 Miele & Cie. KG Laundry treatment machine, in particular laundry dryer
US8020316B2 (en) * 2005-05-20 2011-09-20 Bsh Bosch Und Siemens Hausgeraete Gmbh Washing household device, in particular a clothes dryer
EP2455537A1 (en) 2010-11-19 2012-05-23 Miele & Cie. KG Washer dryer with filter insert
EP2458065A1 (en) * 2010-11-29 2012-05-30 Electrolux Home Products Corporation N.V. Laundry dryer
DE102011055090B3 (en) * 2011-11-07 2012-12-27 Miele & Cie. Kg Laundry treatment machine such as washing machine or tumble dryer

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DE102013104603B4 (en) 2013-05-06 2016-04-07 Miele & Cie. Kg Tumble dryer with a revision flap
DE102013104734A1 (en) 2013-05-08 2014-11-13 Miele & Cie. Kg Domestic appliance with a revision flap and with a hinge block

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US8020316B2 (en) * 2005-05-20 2011-09-20 Bsh Bosch Und Siemens Hausgeraete Gmbh Washing household device, in particular a clothes dryer
EP2309053A1 (en) * 2009-10-09 2011-04-13 Miele & Cie. KG Laundry treatment machine, in particular laundry dryer
EP2248939A1 (en) * 2010-02-15 2010-11-10 V-Zug AG Household appliance, in particular laundry dryer
EP2455537A1 (en) 2010-11-19 2012-05-23 Miele & Cie. KG Washer dryer with filter insert
EP2458065A1 (en) * 2010-11-29 2012-05-30 Electrolux Home Products Corporation N.V. Laundry dryer
DE102011055090B3 (en) * 2011-11-07 2012-12-27 Miele & Cie. Kg Laundry treatment machine such as washing machine or tumble dryer
EP2589698A1 (en) 2011-11-07 2013-05-08 Miele & Cie. KG Laundry treatment machine such as a washing machine or laundry dryer

Also Published As

Publication number Publication date
EP2107155A3 (en) 2012-02-01
EP2107155B1 (en) 2013-12-18
DE102008016815A1 (en) 2009-10-15
PL2107155T3 (en) 2014-04-30
DE102008016815B4 (en) 2011-06-30
ES2443543T3 (en) 2014-02-19

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