EP2460929A1 - Washer dryer with heat pump - Google Patents

Washer dryer with heat pump Download PDF

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Publication number
EP2460929A1
EP2460929A1 EP10401207A EP10401207A EP2460929A1 EP 2460929 A1 EP2460929 A1 EP 2460929A1 EP 10401207 A EP10401207 A EP 10401207A EP 10401207 A EP10401207 A EP 10401207A EP 2460929 A1 EP2460929 A1 EP 2460929A1
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EP
European Patent Office
Prior art keywords
housing
dryer
process air
module
opening
Prior art date
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Granted
Application number
EP10401207A
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German (de)
French (fr)
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EP2460929B1 (en
Inventor
Behnam Mirshekari
Matthias Reich
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Miele und Cie KG
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Miele und Cie KG
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to EP10401207A priority Critical patent/EP2460929B1/en
Priority to ES10401207T priority patent/ES2395521T3/en
Priority to PL10401207T priority patent/PL2460929T3/en
Publication of EP2460929A1 publication Critical patent/EP2460929A1/en
Application granted granted Critical
Publication of EP2460929B1 publication Critical patent/EP2460929B1/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 
    • D06F58/206—Heat pump arrangements

Definitions

  • the invention relates to a tumble dryer, comprising a arranged in a housing, driven by a motor, rotatably mounted on a horizontal or inclined axis drum, a closed loop for the process air, in which supplied by means of a process air blower process air via an air inlet of the drum via a Air outlet is discharged from this, dehumidified in a heat exchanger and then reheated by a heater, a heat pump device with a refrigerant circuit in which circulates refrigerant in a piping system with an evaporator, a compressor, a condenser and a throttle, wherein the heat exchanger, the evaporator and the heater contains the condenser of the heat pump device.
  • the heat from the engine heats the refrigerant more and more, which means that the entire process has to be heated more and more and finally waste heat has to be blown out of the dryer.
  • blowers that cool the compressor with air, which are quite inefficient, since the capsule housing does not allow direct supply of cooling air to the compressor motor.
  • Another possibility is to cool the refrigerant line by means of cooling fins and / or a fan, which acts on the refrigerant line with cooling air, whereby waste heat passes out of the dryer. This arrangement is a little more complex and requires space in the device housing.
  • a tumble dryer is known in which the components of the heat pump are combined in a module that is drawer-like inserted in the dryer housing and can be removed accordingly.
  • this arrangement is disadvantageous because the structure must be changed fundamentally. Furthermore, such an arrangement would result in an increased position of the door opening, which may make access to the drum more difficult.
  • the invention thus has the object to provide a commercial dryer with a heat pump in a simple manner.
  • the advantage achieved by the invention is that a simple way to access the components of the heat pump is provided so that maintenance can be done quickly and reliably. It is also possible to replace the functional module without dismantling the dryer itself.
  • the heat pump device is coupled as a separate functional module to a side wall of the tumble dryer housing, wherein the functional module is adapted to guide the process air through the functional module.
  • the side walls are the walls to the right and left of the loading opening and the rear housing wall.
  • the function module is in the ready state or during operation thus outside of the dryer housing, so that in case of maintenance, only the function module must be disconnected from the dryer housing to allow easy access to the components of the heat pump device.
  • the heat exchanger and the heater can be cleaned quickly and reliably due to its easy accessibility. All position information refers to the operating installation position of the dryer.
  • the functional module has its own housing and is detachably coupled to the tumble dryer housing by means of the module housing.
  • a compact, independent functional unit is formed, which is also protected from dirt.
  • the module housing advantageously has the same height and width as the dryer housing in order to optically form a unit. Only the depth of the module housing can be smaller due to the arrangement of the components for the heat pump in order to minimize the need for additional footprint.
  • the side wall or the rear housing wall of the dryer housing has at least one opening which corresponds to an opening in the housing of the functional module to the process air from the dryer housing out in the functional module to the heat exchanger and for heating and from there the process air in the Return dryer housing.
  • the side wall for the outlet of the process air from the dryer housing an opening and for the re-entry of the process air in the Dryer housing includes a further opening, so that no unwanted cross-coupling of the process air flow occurs.
  • a seal surrounding the opening / openings for sealing the process air circulation is arranged between the side wall of the dryer housing and the wall of the functional module housing facing the dryer.
  • the wall of the functional module housing has an outwardly facing web, which is obliquely positioned on the module housing wall, which can reach an opening edge of the dryer housing in a rear grip, in the ready installation position of the dryer and the functional module ,
  • a trough for collecting condensation liquid is arranged in the module housing, which comprises a funnel-shaped depression in order to guide the liquid to an opening in a housing wall of the functional module.
  • the resulting condensation liquid can be derived in a simple manner from the module housing or directed to a drain in the installation room, without a collecting container must be provided, which is also regularly empty.
  • the process air guide in the functional module is designed such that the process air can enter the functional module in the lower area, starting from there upwards, first to the heat exchanger and the downstream heater, which leads out of the module housing from there can be. Due to the vertical arrangement of heat exchanger and heating, the functional module can be designed to be slim, so that the required area in the installation room can be kept small and the dryer arrangement does not need too much space in the depth.
  • the heat exchanger is set up to effect a self-cleaning by means of the condensing liquid produced and drained in the heat exchanger.
  • the maintenance intervals for cleaning the components of the heat pump can be extended. In the best case, no cleaning of the heat exchanger is necessary during the entire life of the heat pump function module.
  • the module housing comprises a separate from the process air flow receiving space for the compressor and / or other functional elements.
  • noise-inviting functional elements can be encapsulated or sound-insulated by the separate arrangement in the receiving space designed as a machine room.
  • the receiving space comprises at least one ventilation opening or at least one ventilation grille for cooling the compressor and / or other components of the heat pump.
  • the Fig. 1 shows a schematic side view of a clothes dryer 1.
  • the clothes dryer 1 in this case comprises a housing 2 in which a rotatably mounted on an at least almost horizontal or horizontal axis 3a drum 3 is arranged.
  • the functional module 5 which receives the components for the heat pump.
  • the process air duct 8 a of the tumble dryer 1 the process air PL is generated by means of a blower 9 and fed through the air outlet 11 b of the dryer housing 2 to the air inlet 12 b of the module housing 4.
  • the process air PL passes through the heat exchanger 15, where it is cooled and dehumidified due to the condensation generated thereby and then the heater 16, where it is reheated.
  • the process air PL leaves the module housing 4 and passes through the corresponding opening 11a in the dryer housing 2 and then through the air inlet 6 in the drum 3, which provides the treatment room for the laundry or textiles to be dried.
  • the drying air PL passes from the drum 3 to a filter device 25, which is formed as a plane.
  • the heat exchanger 15 and the heater 16 are here in a channel 8 within the module housing 4.
  • In the module housing 4 is a separated from the channel 8 receiving space 23 for the compressor 14 and other components of the heat pump, such as sensors or a cooler 24 for the refrigerant in Heat pump cycle housed.
  • Fig. 2 shows the clothes dryer 1 in a simplified schematic side view. It can be seen here that the housing 2 of the tumble dryer 1 has at least one opening 11 b on the rear side wall 2 a. The employed to the dryer housing 2
  • Function module 5 has in its housing 4 on the side facing the dryer 1 side wall 4a also at least one opening 12b, which corresponds to the opening 11 b in the dryer housing.
  • an outwardly facing web 26 is attached, which is obliquely positioned on the module housing wall 4a, which passes at an opening edge, here the lower edge 2b of the dryer housing 2 in a rear grip and thereby a stable positioning the module housing 4 causes the dryer housing.
  • a circumferential seal 13 is arranged, which seals the openings 11a, 11b, 12a and 12b to the outside.
  • the dryer 1 and the functional module 5 are placed on the footprint 17 such that, due to the gravity of the respective devices in cooperation with the web 16 in engagement with the opening 11a and / or 11b, a solid composite of a dryer unit. 1 , 5 arises.
  • Fig. 3 shows the functional module 5 in a rear perspective view.
  • the closed during operation channel 8 is opened, which can be done by means of a so-called maintenance flap closing.
  • the heat exchanger 15 which is arranged below the heater 16.
  • a collecting trough 20 is arranged within the module housing 4, which is adapted to catch dripping condensation liquid 18 and directed to the outlet opening 21 in the module housing 4.
  • the drip pan 20 can be removed from the module housing 4 for cleaning purposes.
  • a receiving space 23 separated from this is provided for the compressor 14 or further components.
  • at least one ventilation opening 22 with a ventilation grille is provided in the rear side wall 4b or a side wall.
  • Fig. 4 shows a schematic representation of the process air duct 8 in the function module 5 during operation.
  • the moist process air PL succeeded from below to the cold heat exchanger 15 (evaporator), where it is cooled so far that they condensate and thereby form water droplets 18 and drain on fins 15a of the heat exchanger 15 downwards due to gravity SW.
  • the effluent water drops 18 take attached dirt particles 19 and let them into the drip pan 20 (FIG. Fig. 3 ) reach.
  • the process air PL itself is freed of dirt particles by condensate formation or they are reduced at least in the process air PL.
  • the thus purified process air PL now leaves the heat exchanger 15 and then passes through the heater 16.
  • a contamination of the heater 16 is reliably avoided or at least reduced in this way, so that a cleaning of these two components 15, 16 must be performed only rarely.
  • the fins 15a of the heat exchanger 15 are in this case aligned at least substantially in a vertical extent.
  • the fins 16a of the heater extend substantially vertically, so that remaining in the process air dirt particles 19 blown past the fins be able to fall down into the drip pan 20 when the process air PL is switched off.

Abstract

The clothes dryer (1) has housing (2) with a motor (10) for driving a rotatably mounted drum (3). A closed circuit has a process air blower (9) that supplies process air (PL) through an air inlet (6) of drum and supplies the process air via an air outlet (7) to a heat exchanger (15). The air from heat exchanger is supplied to a heater (16). The heat pump unit (5) is equipped with a refrigerant circuit that circulates refrigerant to heat exchanger, a compressor (14), and heater. The heat pump unit is coupled as a separate functional module on the side wall of housing.

Description

Die Erfindung betrifft einen Wäschetrockner, umfassend eine in einem Gehäuse angeordneten, mittels eines Motors antreibbaren, über eine horizontale oder geneigten Achse drehbar gelagerten Trommel, einen geschlossenen Kreislauf für die Prozessluft, in dem mittels eines Prozessluftgebläses Prozessluft über einen Lufteinlass der Trommel zugeführt, über einen Luftauslass aus dieser abgeführt, in einem Wärmetauscher entfeuchtet und danach durch eine Heizung wieder erwärmt wird, einer Wärmepumpeneinrichtung mit einem Kältemittelkreislauf, bei dem Kältemittel in einem Leitungssystem mit einem Verdampfer, einem Kompressor, einem Verflüssiger und einer Drossel zirkuliert, wobei der Wärmetauscher den Verdampfer und die Heizung den Verflüssiger der Wärmepumpeneinrichtung enthält.The invention relates to a tumble dryer, comprising a arranged in a housing, driven by a motor, rotatably mounted on a horizontal or inclined axis drum, a closed loop for the process air, in which supplied by means of a process air blower process air via an air inlet of the drum via a Air outlet is discharged from this, dehumidified in a heat exchanger and then reheated by a heater, a heat pump device with a refrigerant circuit in which circulates refrigerant in a piping system with an evaporator, a compressor, a condenser and a throttle, wherein the heat exchanger, the evaporator and the heater contains the condenser of the heat pump device.

Aus dem Stand der Technik ist gemäß der EP 1 209 277 A2 ein derartiger Wäschetrockner mit einer Wärmepumpe bekannt. Wärmepumpenwäschetrockner sind momentan besonders begehrt, da sie sowohl die von der Wärmepumpe bereitgestellte Wärme als auch die entsprechend erzeugte Kälte nutzen. Dadurch kann der Energieeinsatz effizienter genutzt werden. Um zu vermeiden, dass Kältemittel nach außen dringt, wurde in den letzten Jahren immer höherer Aufwand hinsichtlich der Dichtigkeit des Kältemittelkreislaufs getrieben. So ist auch der Kompressor mit einem Kapselgehäuse versehen, in dem der Motor für den Antrieb des Verdichters und der Verdichter selbst gasdicht umschlossen ist. Dadurch kann aus dem Verdichter entweichendes Kältemittel nicht in die Umgebung gelangen, es verbleibt im Kapselgehäuse. Bei dieser bewährten Ausführung erwärmt sich durch die Abwärme des Motors das Kältemittel immer stärker, wodurch der gesamte Prozess immer stärker erwärmt und letztendlich Abwärme aus dem Trockner herausgeblasen werden muss. Bekannt sind hierzu Gebläse, die den Kompressor mit Luft kühlen, die jedoch recht ineffizient sind, da das Kapselgehäuse keine direkte Zufuhr der Kühlluft zum Kompressormotor zulässt. Eine andere Möglichkeit ist, die Kältemittelleitung mittels Kühlrippen und/oder einem Gebläse, welches die Kältemittelleitung mit Kühlluft beaufschlagt, zu kühlen, wodurch Abwärme aus dem Trockner heraus gelangt. Diese Anordnung ist etwas aufwändiger und benötigt Bauraum im Gerätegehäuse.From the prior art is according to the EP 1 209 277 A2 Such a dryer with a heat pump known. Heat pump laundry dryers are currently in high demand because they use both the heat provided by the heat pump and the correspondingly generated cold. As a result, the use of energy can be used more efficiently. In order to avoid that refrigerant leaks to the outside, in recent years, ever more effort has been made in terms of the tightness of the refrigerant circuit. Thus, the compressor is provided with a capsule housing in which the motor for driving the compressor and the compressor itself is enclosed gas-tight. As a result, escaping refrigerant from the compressor can not get into the environment, it remains in the capsule housing. In this proven version, the heat from the engine heats the refrigerant more and more, which means that the entire process has to be heated more and more and finally waste heat has to be blown out of the dryer. Known for this purpose blowers that cool the compressor with air, which are quite inefficient, since the capsule housing does not allow direct supply of cooling air to the compressor motor. Another possibility is to cool the refrigerant line by means of cooling fins and / or a fan, which acts on the refrigerant line with cooling air, whereby waste heat passes out of the dryer. This arrangement is a little more complex and requires space in the device housing.

Aus der DE 42 12 700 A1 ist ein Wäschetrockner bekannt, bei dem die Bestandteile der Wärmepumpe in einem Modul zusammengefasst sind, das schubladenartig im Trocknergehäuse eingeführt ist und entsprechend herausgenommen werden kann. Für einen gewerblichen Trockner ist diese Anordnung nachteilig, da der Aufbau grundlegend geändert werden müsst. Ferner hätte eine solche Anordnung eine erhöhte Position der Türöffnung zur Folge, wodurch sich der Zugriff in die Trommel erschweren kann.From the DE 42 12 700 A1 a tumble dryer is known in which the components of the heat pump are combined in a module that is drawer-like inserted in the dryer housing and can be removed accordingly. For a commercial dryer, this arrangement is disadvantageous because the structure must be changed fundamentally. Furthermore, such an arrangement would result in an increased position of the door opening, which may make access to the drum more difficult.

Der Erfindung stellt sich somit die Aufgabe, auf einfache Weise einen gewerblichen Wäschetrockner mit einer Wärmepumpe bereitzustellen.The invention thus has the object to provide a commercial dryer with a heat pump in a simple manner.

Erfindungsgemäß wird diese Aufgabe durch einen Wäschetrockner mit den Merkmalen des unabhängigen Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden abhängigen Ansprüchen.According to the invention this object is achieved by a tumble dryer with the features of independent claim 1. Advantageous embodiments and modifications of the invention will become apparent from the following dependent claims.

Der mit der Erfindung erreichte Vorteil besteht darin, dass auf einfache Weise eine gute Zugänglichkeit zu den Komponenten der Wärmepumpe bereitgestellt wird, sodass Wartungsarbeiten schnell und zuverlässig erledigt werden können. Auch ein Austausch des Funktionsmoduls ist ohne Demontage des Trockners selbst möglich.The advantage achieved by the invention is that a simple way to access the components of the heat pump is provided so that maintenance can be done quickly and reliably. It is also possible to replace the functional module without dismantling the dryer itself.

Gemäß der Erfindung ist die Wärmepumpeneinrichtung als separates Funktionsmodul an einer Seitenwand des Wäschetrocknergehäuses angekoppelt, wobei das Funktionsmodul dazu ausgebildet ist, die Prozessluft durch das Funktionsmodul hindurch zu führen. Als Seitenwand gelten die Wände rechts und links der Beladungsöffnung und die rückseitige Gehäusewand. Das Funktionsmodul befindet sich im betriebsbereiten Zustand bzw. während des Betriebs somit außerhalb des Trocknergehäuses, sodass im Wartungsfall nur das Funktionsmodul vom Trocknergehäuse abgekoppelt werden muss, um den bequemen Zugang zu den Komponenten der Wärmepumpeneinrichtung zu ermöglichen. Der Wärmetauscher und die Heizung kann aufgrund der guten Zugänglichkeit schnell und zuverlässig gereinigt werden. Alle Positionsangaben beziehen sich auf die betriebsgemäße Aufstellposition des Trockners.According to the invention, the heat pump device is coupled as a separate functional module to a side wall of the tumble dryer housing, wherein the functional module is adapted to guide the process air through the functional module. The side walls are the walls to the right and left of the loading opening and the rear housing wall. The function module is in the ready state or during operation thus outside of the dryer housing, so that in case of maintenance, only the function module must be disconnected from the dryer housing to allow easy access to the components of the heat pump device. The heat exchanger and the heater can be cleaned quickly and reliably due to its easy accessibility. All position information refers to the operating installation position of the dryer.

In einer vorteilhaften Weiterbildung umfasst das Funktionsmodul ein eigenes Gehäuse und ist mittels des Modulgehäuses lösbar am Wäschetrocknergehäuse angekoppelt. Dadurch wird eine kompakte, eigenständige Funktionseinheit gebildet, die auch vor Schmutz geschützt ist. Das Modulgehäuse hat dabei vorteilhafterweise die gleiche Höhe und Breite, wie das Trocknergehäuse, um optisch eine Einheit zu bilden. Nur die Tiefe des Modulgehäuses kann aufgrund der Anordnung der Komponenten für die Wärmepumpe kleiner ausfallen, um den Mehrbedarf an Aufstellfläche möglichst gering zu halten.In an advantageous development, the functional module has its own housing and is detachably coupled to the tumble dryer housing by means of the module housing. As a result, a compact, independent functional unit is formed, which is also protected from dirt. The module housing advantageously has the same height and width as the dryer housing in order to optically form a unit. Only the depth of the module housing can be smaller due to the arrangement of the components for the heat pump in order to minimize the need for additional footprint.

In einer zweckmäßigen Weiterbildung besitzt die Seitenwand oder die rückseitige Gehäusewand des Trocknergehäuses zumindest eine Öffnung, die mit einer Öffnung im Gehäuse des Funktionsmoduls korrespondiert, um die Prozessluft aus dem Trocknergehäuse heraus in das Funktionsmodul zum Wärmetauscher und zur Heizung und von dort ausgehend die Prozessluft in das Trocknergehäuse zurück zu führen. Somit sind keine Rohre oder andere Mittel zur Luftführung zwischen Trocknergehäuse und Modulgehäuse notwendig, da das Trocknergehäuse und das Modulgehäuse selbst für die Luftführung ausgebildet sind. Hierbei ist es zweckmäßig, dass die Seitenwand für den Austritt der Prozessluft aus dem Trocknergehäuse eine Öffnung und für den Wiedereintritt der Prozessluft in das Trocknergehäuse eine weitere Öffnung umfasst, damit keine unerwünschte Querkopplung des Prozessluftstroms auftritt.In an expedient development, the side wall or the rear housing wall of the dryer housing has at least one opening which corresponds to an opening in the housing of the functional module to the process air from the dryer housing out in the functional module to the heat exchanger and for heating and from there the process air in the Return dryer housing. Thus, no pipes or other means for air duct between dryer housing and module housing are necessary, since the dryer housing and the module housing itself are designed for air guidance. It is expedient that the side wall for the outlet of the process air from the dryer housing an opening and for the re-entry of the process air in the Dryer housing includes a further opening, so that no unwanted cross-coupling of the process air flow occurs.

In einer weiteren, zweckmäßigen Ausführung ist zwischen der Seitenwand des Trocknergehäuses und der dem Trockner zugewandten Wand des Funktionsmodulgehäuses eine um die Öffnung / Öffnungen umlaufende Dichtung zur Abdichtung des Prozessluftkreislaufs angeordnet. Somit führen Toleranzen hinsichtlich der Maßhaltigkeit der Gehäuseteile nicht zu Undichtigkeiten im Prozessluftstrom. Ferner werden Vibrationen vom Wärmepumpenmodul nicht auf die größeren Seitenwände des Trocknergehäuses übertragen, wodurch unangenehme Geräusche vermieden werden.In a further expedient embodiment, a seal surrounding the opening / openings for sealing the process air circulation is arranged between the side wall of the dryer housing and the wall of the functional module housing facing the dryer. Thus, tolerances with respect to the dimensional accuracy of the housing parts do not lead to leaks in the process air flow. Furthermore, vibrations from the heat pump module are not transmitted to the larger side walls of the dryer housing, thereby avoiding unpleasant noises.

Zur Bereitstellung eines guten Festsitzes des Modulgehäuses am Trocknergehäuse weist die Wand des Funktionsmodulgehäuses einen nach außen weisenden Steg auf, der schräg an der Modulgehäusewand angestellt ist, der an einem Öffnungsrand des Trocknergehäuses in einen Hintergriff gelangen kann, in der betriebsbereiten Aufstellposition des Trockners und des Funktionsmoduls.To provide a good tight fit of the module housing on the dryer housing, the wall of the functional module housing has an outwardly facing web, which is obliquely positioned on the module housing wall, which can reach an opening edge of the dryer housing in a rear grip, in the ready installation position of the dryer and the functional module ,

In einer insgesamt vorteilhaften Ausführung ist im Modulgehäuse eine Wanne zum Auffangen von Kondensationsflüssigkeit angeordnet, die eine trichterförmige Vertiefung umfasst, um die Flüssigkeit zu einer Öffnung in einer Gehäusewand des Funktionsmoduls zu leiten. Somit kann die anfallende Kondensationsflüssigkeit auf einfache Weise aus dem Modulgehäuse abgeleitet bzw. zu einem Abfluss im Aufstellraum geleitet werden, ohne dass ein Auffangbehältnis vorgehalten werden muss, das ferner regelmäßig zu leeren ist.In an overall advantageous embodiment, a trough for collecting condensation liquid is arranged in the module housing, which comprises a funnel-shaped depression in order to guide the liquid to an opening in a housing wall of the functional module. Thus, the resulting condensation liquid can be derived in a simple manner from the module housing or directed to a drain in the installation room, without a collecting container must be provided, which is also regularly empty.

In einer weiteren, vorteilhaften Ausführung ist die Prozessluftführung im Funktionsmodul derart ausgebildet, dass die Prozessluft im unteren Bereich in das Funktionsmodul eintreten kann, von dort ausgehend nach oben zunächst zum Wärmetauscher und der nachgeschalteten Heizung zugeführt werden kann, die von dort ausgehend aus dem Modulgehäuse herausgeführt werden kann. Aufgrund der vertikalen Anordnung von Wärmetauscher und Heizung kann das Funktionsmodul schmal bauend ausgeführt sein, sodass die benötigte Fläche im Aufstellraum klein gehalten werden kann und die Trockneranordnung in der Tiefe nicht zu viel Raum benötigt.In a further advantageous embodiment, the process air guide in the functional module is designed such that the process air can enter the functional module in the lower area, starting from there upwards, first to the heat exchanger and the downstream heater, which leads out of the module housing from there can be. Due to the vertical arrangement of heat exchanger and heating, the functional module can be designed to be slim, so that the required area in the installation room can be kept small and the dryer arrangement does not need too much space in the depth.

In einer vorteilhaften Weiterbildung ist der Wärmetauscher dazu eingerichtet, eine Selbstreinigung mittels der im Wärmetauscher entstehenden und ablaufenden Kondensationsflüssigkeit zu bewirken. Dadurch können die Wartungsintervalle für die Reinigung der Komponenten der Wärmepumpe verlängert werden. Im günstigsten Fall ist während der gesamten Lebensdauer des Wärmepumpen-Funktionsmoduls keine Reinigung des Wärmetauschers notwendig.In an advantageous development, the heat exchanger is set up to effect a self-cleaning by means of the condensing liquid produced and drained in the heat exchanger. As a result, the maintenance intervals for cleaning the components of the heat pump can be extended. In the best case, no cleaning of the heat exchanger is necessary during the entire life of the heat pump function module.

In einer insgesamt zweckmäßigen Ausführung umfasst das Modulgehäuse einen vom Prozessluftstrom getrennten Aufnahmeraum für den Kompressor und / oder weitere Funktionselemente. Dadurch können lärmintesive Funktionselemente durch die getrennte Anordnung im als Maschinenraum ausgebildeten Aufnahmeraum gekapselt oder schallgedämmt werden. Der Aufnahmeraum umfasst zumindest eine Lüftungsöffnung oder zumindest ein Lüftungsgitter zur Kühlung des Kompressors und/oder anderen Komponenten der Wärmepumpe.In an overall expedient embodiment, the module housing comprises a separate from the process air flow receiving space for the compressor and / or other functional elements. As a result, noise-inviting functional elements can be encapsulated or sound-insulated by the separate arrangement in the receiving space designed as a machine room. The receiving space comprises at least one ventilation opening or at least one ventilation grille for cooling the compressor and / or other components of the heat pump.

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

Fig. 1:
eine schematische Schnittdarstellung des Wäschetrockners;
Fig. 2:
eine vereinfachte Seitenansicht des Wäschetrockners;
Fig. 3:
das Funktionsmodul in einer perspektivischen Ansicht und
Fig. 4:
den Prozessluftkanal innerhalb des Funktionsmoduls.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Show it:
Fig. 1:
a schematic sectional view of the tumble dryer;
Fig. 2:
a simplified side view of the tumble dryer;
3:
the functional module in a perspective view and
4:
the process air channel within the function module.

Die Fig. 1 zeigt in einer schematischen Seitenansicht einen Wäschetrockner 1. Der Wäschetrockner 1 umfasst hierbei ein Gehäuse 2 in dem eine drehbar, über eine zumindest nahezu horizontale oder horizontale Achse 3a gelagerte Trommel 3 angeordnet ist. In dem Gehäuse 2 befindet sich bodenseitig unterhalb der Trommel 3, bezogen auf die betriebsgemäße Aufstellposition des Trockners, das Funktionsmodul 5, das die Komponenten für die Wärmepumpe aufnimmt. Im Prozessluftkanal 8a des Wäschetrockners 1 wird die Prozessluft PL mittels eines Gebläses 9 erzeugt und durch den Luftaustritt 11 b des Trocknergehäuses 2 zum Lufteintritt 12b des Modulgehäuses 4 zugeführt. Von dort ausgehend passiert die Prozessluft PL den Wärmetauscher 15, wo sie abgekühlt und aufgrund der dadurch erzeugten Kondensation entfeuchtet wird und anschließend die Heizung 16, an der sie wieder erhitzt wird. Durch die Öffnung 12a verlässt die Prozessluft PL das Modulgehäuse 4 und gelangt durch die korrespondierende Öffnung 11a in das Trocknergehäuse 2 und danach durch den Lufteinlass 6 in die Trommel 3, die den Behandlungsraum für die zu trocknende Wäsche oder Textilien bereitstellt. Durch den Luftauslass 7 gelangt die Trocknungsluft PL aus der Trommel 3 zu einer Filtereinrichtung 25, die als Ebene ausgebildet ist. Der Wärmetauscher 15 und die Heizung 16 befinden sich hierbei in einem Kanal 8 innerhalb des Modulgehäuses 4. Im Modulgehäuse 4 ist ein vom Kanal 8 abgetrennter Aufnahmeraum 23 für den Kompressor 14 und weitere Komponenten der Wärmepumpe, wie Sensoren oder ein Kühler 24 für das Kältemittel im Wärmepumpenkreislauf untergebracht.The Fig. 1 shows a schematic side view of a clothes dryer 1. The clothes dryer 1 in this case comprises a housing 2 in which a rotatably mounted on an at least almost horizontal or horizontal axis 3a drum 3 is arranged. In the housing 2 is located on the bottom side below the drum 3, based on the operational installation position of the dryer, the functional module 5, which receives the components for the heat pump. In the process air duct 8 a of the tumble dryer 1, the process air PL is generated by means of a blower 9 and fed through the air outlet 11 b of the dryer housing 2 to the air inlet 12 b of the module housing 4. From there, the process air PL passes through the heat exchanger 15, where it is cooled and dehumidified due to the condensation generated thereby and then the heater 16, where it is reheated. Through the opening 12a, the process air PL leaves the module housing 4 and passes through the corresponding opening 11a in the dryer housing 2 and then through the air inlet 6 in the drum 3, which provides the treatment room for the laundry or textiles to be dried. Through the air outlet 7, the drying air PL passes from the drum 3 to a filter device 25, which is formed as a plane. The heat exchanger 15 and the heater 16 are here in a channel 8 within the module housing 4. In the module housing 4 is a separated from the channel 8 receiving space 23 for the compressor 14 and other components of the heat pump, such as sensors or a cooler 24 for the refrigerant in Heat pump cycle housed.

Fig. 2 zeigt den Wäschetrockner 1 in einer vereinfachten schematischen Seitenansicht. Hierbei ist zu erkennen, dass das Gehäuse 2 des Wäschetrockners 1 an der rückseitigen Seitenwand 2a zumindest eine Öffnung 11 b besitzt. Das an das Trocknergehäuse 2 angestellte Fig. 2 shows the clothes dryer 1 in a simplified schematic side view. It can be seen here that the housing 2 of the tumble dryer 1 has at least one opening 11 b on the rear side wall 2 a. The employed to the dryer housing 2

Funktionsmodul 5 besitzt in seinem Gehäuse 4 auf der dem Trockner 1 zugewandten Seitenwand 4a ebenfalls zumindest eine Öffnung 12b, die mit der Öffnung 11 b im Trocknergehäuse korrespondiert. An der unteren Kante der Öffnung 12b im Modulgehäuse 4 ist ein nach außen weisenden Steg 26 angebracht, der schräg an der Modulgehäusewand 4a angestellt ist, der an einem Öffnungsrand, hier dem unteren Rand 2b des Trocknergehäuses 2 in einen Hintergriff gelangt und dadurch eine stabile Positionierung des Modulgehäuses 4 am Trocknergehäuse bewirkt. Zwischen der rückseitigen Seitenwand 2a des Trocknergehäuses 2 und der Wand 4a des Modulgehäuses 4 ist eine umlaufende Dichtung 13 angeordnet, die die Öffnungen 11a, 11 b, 12a und 12b nach außen hin abdichtet. Insgesamt ist zu erkennen, dass der Trockner 1 und das Funktionsmodul 5 so auf der Aufstellfläche 17 aufgestellt sind, dass aufgrund der Schwerkraft der jeweiligen Geräte im Zusammenspiel mit dem Steg 16 im Eingriff in die Öffnung 11a und/oder 11b ein fester Verbund einer Trocknereinheit 1, 5 entsteht.Function module 5 has in its housing 4 on the side facing the dryer 1 side wall 4a also at least one opening 12b, which corresponds to the opening 11 b in the dryer housing. At the lower edge of the opening 12b in the module housing 4, an outwardly facing web 26 is attached, which is obliquely positioned on the module housing wall 4a, which passes at an opening edge, here the lower edge 2b of the dryer housing 2 in a rear grip and thereby a stable positioning the module housing 4 causes the dryer housing. Between the rear side wall 2a of the dryer housing 2 and the wall 4a of the module housing 4, a circumferential seal 13 is arranged, which seals the openings 11a, 11b, 12a and 12b to the outside. Overall, it can be seen that the dryer 1 and the functional module 5 are placed on the footprint 17 such that, due to the gravity of the respective devices in cooperation with the web 16 in engagement with the opening 11a and / or 11b, a solid composite of a dryer unit. 1 , 5 arises.

Fig. 3 zeigt das Funktionsmodul 5 in einer rückseitigen, perspektivischen Ansicht. Hierbei ist der im Betrieb geschlossene Kanal 8 geöffnet, wobei mittels einer sogenannten Wartungsklappe das Verschließen erfolgen kann. Zu erkennen ist der Wärmetauscher 15, der unterhalb der Heizung 16 angeordnet ist. Unterhalb des Wärmetauschers 15 ist innerhalb des Modulgehäuses 4 eine Auffangwanne 20 angeordnet, die dazu eingerichtet ist, abtropfende Kondensationsflüssigkeit 18 aufzufangen und gezielt zur Ablauföffnung 21 im Modulgehäuse 4 zu leiten. Die Auffangwanne 20 kann zu Reinigungszwecken aus dem Modulgehäuse 4 herausgenommen werden. Oberhalb des Prozessluftkanals 8 ist ein von diesem abgetrennter Aufnahmeraum 23 für den Kompressor 14 oder weitere Komponenten vorgesehen. Zur Belüftung des sogenannten Maschinenraums 23 ist in der rückseitigen Seitenwand 4b oder einer Seitenwand zumindest eine Lüftungsöffnung 22 mit einem Lüftungsgitter vorgesehen. Fig. 3 shows the functional module 5 in a rear perspective view. In this case, the closed during operation channel 8 is opened, which can be done by means of a so-called maintenance flap closing. Evident is the heat exchanger 15, which is arranged below the heater 16. Below the heat exchanger 15, a collecting trough 20 is arranged within the module housing 4, which is adapted to catch dripping condensation liquid 18 and directed to the outlet opening 21 in the module housing 4. The drip pan 20 can be removed from the module housing 4 for cleaning purposes. Above the process air channel 8, a receiving space 23 separated from this is provided for the compressor 14 or further components. For ventilation of the so-called engine room 23, at least one ventilation opening 22 with a ventilation grille is provided in the rear side wall 4b or a side wall.

Fig. 4 zeigt in einer schematischen Darstellung den Prozessluftkanal 8 im Funktionsmodul 5 im Betrieb. Die feuchte Prozessluft PL gelang von unten zum kalten Wärmetauscher 15 (Verdampfer), und wird dort so weit abgekühlt, dass sie kondensiert und dadurch Wassertropfen 18 bilden und an Lamellen 15a des Wärmetauschers 15 nach unten aufgrund der Schwerkraft SW abfließen. Die abfließenden Wassertropfen 18 nehmen anhaftende Schmutzpartikel 19 mit und lassen diese mit in die Auffangwanne 20 (Fig. 3) gelangen. Ferner wird durch die Kondensatbildung die Prozessluft PL selbst von Schmutzpartikeln befreit bzw. werden diese zumindest in der Prozessluft PL reduziert. Die so gereinigte Prozessluft PL verlässt nun den Wärmetauscher 15 und passiert danach die Heizung 16. Eine Verschmutzung der Heizung 16 wird auf diese Wiese zuverlässig vermieden bzw. zumindest vermindert, sodass eine Reinigung dieser beiden Komponenten 15, 16 nur selten durchgeführt werden muss. Die Lamellen 15a des Wärmetauschers 15 sind hierbei zumindest im wesentlichen in senkrechter Erstreckung ausgerichtet. Auch die Lamellen 16a der Heizung erstrecken sich im wesentlichen senkrecht, damit noch in der Prozessluft verbleibende Schmutzpartikel 19 an die Lamellen vorbei geblasen werden können oder bei abgeschalteter Prozessluft PL diese herunter in die Auffangwanne 20 fallen können. Fig. 4 shows a schematic representation of the process air duct 8 in the function module 5 during operation. The moist process air PL succeeded from below to the cold heat exchanger 15 (evaporator), where it is cooled so far that they condensate and thereby form water droplets 18 and drain on fins 15a of the heat exchanger 15 downwards due to gravity SW. The effluent water drops 18 take attached dirt particles 19 and let them into the drip pan 20 (FIG. Fig. 3 ) reach. Furthermore, the process air PL itself is freed of dirt particles by condensate formation or they are reduced at least in the process air PL. The thus purified process air PL now leaves the heat exchanger 15 and then passes through the heater 16. A contamination of the heater 16 is reliably avoided or at least reduced in this way, so that a cleaning of these two components 15, 16 must be performed only rarely. The fins 15a of the heat exchanger 15 are in this case aligned at least substantially in a vertical extent. The fins 16a of the heater extend substantially vertically, so that remaining in the process air dirt particles 19 blown past the fins be able to fall down into the drip pan 20 when the process air PL is switched off.

Claims (11)

Wäschetrockner (1), umfassend eine in einem Gehäuse (2) angeordneten, mittels eines Motors (10) antreibbaren, über eine horizontale oder geneigten Achse (3a) drehbar gelagerten Trommel (3), einen geschlossenen Kreislauf für die Prozessluft (PL), in dem mittels eines Prozessluftgebläses (9) Prozessluft (PL) über einen Lufteinlass (6) der Trommel (3) zugeführt, über einen Luftauslass (7) aus dieser abgeführt, in einem Wärmetauscher (15) entfeuchtet und danach durch eine Heizung (16) wieder erwärmt wird, einer Wärmepumpeneinrichtung (5) mit einem Kältemittelkreislauf, bei dem Kältemittel in einem Leitungssystem mit einem Verdampfer (15), einem Kompressor (14), einem Verflüssiger (16) und einer Drossel (15a) zirkuliert, wobei der Wärmetauscher den Verdampfer (15) und die Heizung den Verflüssiger (16) der Wärmepumpeneinrichtung enthält,
dadurch gekennzeichnet,
dass die Wärmepumpeneinrichtung als separates Funktionsmodul (5) an einer Seitenwand (2a) des Wäschetrocknergehäuses (2) angekoppelt ist, um die Prozessluft (PL) durch das Funktionsmodul (5) hindurch zu führen.Dryer (1), comprising a housing (2) arranged by means of a motor (10) driven, on a horizontal or inclined axis (3a) rotatably mounted drum (3), a closed circuit for the process air (PL), in to process air (PL) via an air inlet (6) supplied to the drum (3) by means of a process air blower (9) via an air outlet (7) from this, dehumidified in a heat exchanger (15) and then by a heater (16) again a heat pump device (5) with a refrigerant circuit, in which refrigerant circulates in a line system with an evaporator (15), a compressor (14), a condenser (16) and a throttle (15a), wherein the heat exchanger, the evaporator ( 15) and the heater contains the condenser (16) of the heat pump device,
characterized,
that the heat pump device is coupled as a separate functional module (5) to a side wall (2a) of the dryer housing (2) to the process air (PL) by the functional module (5) to guide therethrough. Wäschetrockner (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass Funktionsmodul (5) ein eigenes Gehäuse (4) besitzt und lösbar am Wäschetrocknergehäuse (2) angekoppelt ist.Clothes dryer (1) according to claim 1,
characterized,
in that the functional module (5) has its own housing (4) and is detachably coupled to the tumble dryer housing (2). Wäschetrockner (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass die Seitenwand (2a) des Trocknergehäuses (2) zumindest eine Öffnung (11a, 11 b) besitzt, die mit einer Öffnung (12a, 12b) im Gehäuse (4) des Funktionsmoduls (5) korrespondiert, um die Prozessluft (PL) aus dem Trocknergehäuse (2) heraus in das Funktionsmodul (5) zum Wärmetauscher (15) und zur Heizung (16) und von dort ausgehend die Prozessluft (PL) in das Trocknergehäuse (2) zurück zu führen.Clothes dryer (1) according to claim 2,
characterized,
that the side wall (2a) of the drier housing (2) at least one opening (11a, 11b) which having an opening (12a, 12b) in the housing (4) of the function module (5) corresponds to the process air (PL) from the dryer housing (2) out into the functional module (5) to the heat exchanger (15) and to the heater (16) and from there starting the process air (PL) in the dryer housing (2) back. Wäschetrockner (1) nach Anspruch 3,
dadurch gekennzeichnet,
dass die Seitenwand (2a) für den Austritt der Prozessluft (PL) aus dem Trocknergehäuse (2) eine Öffnung (11a) und für den Wiedereintritt der Prozessluft (PL) in das Trocknergehäuse (2) eine weitere Öffnung (11 b) umfasst.Clothes dryer (1) according to claim 3,
characterized,
in that the side wall (2a) for the outlet of the process air (PL) from the dryer housing (2) comprises an opening (11a) and for the re-entry of the process air (PL) into the dryer housing (2) has a further opening (11b). Wäschetrockner (1) nach Anspruch 3 oder 4,
dadurch gekennzeichnet,
dass zwischen der Seitenwand (2a) des Trocknergehäuses (2) und der dem Trockner zugewandten Wand (4a) des Modulgehäuses (4) eine um die Öffnung / Öffnungen (11a, 11 b, 12a, 12b) umlaufende Dichtung (13) zur Abdichtung des Prozessluftkreislaufs (PL) angeordnet ist.Clothes dryer (1) according to claim 3 or 4,
characterized,
that between the side wall (2a) of the dryer housing (2) and the dryer facing wall (4a) of the module housing (4) around the opening / openings (11a, 11 b, 12a, 12b) circumferential seal (13) for sealing the process air circuit (PL) is arranged. Wäschetrockner (1) nach einem der Ansprüche 3 bis 5,
dadurch gekennzeichnet,
dass die Wand des Funktionsmodulgehäuses (4a) einen nach außen weisenden Steg (26) aufweist, der schräg an der Modulgehäusewand (4a) angestellt ist, der an einem Öffnungsrand (2b) des Trocknergehäuses (2) in einen Hintergriff gelangen kann, in der betriebsbereiten Aufstellposition des Trockners (1) und des Funktionsmoduls (5).Clothes dryer (1) according to one of claims 3 to 5,
characterized,
in that the wall of the functional module housing (4a) has an outwardly directed web (26), which is positioned obliquely on the module housing wall (4a), which can reach into an operative grip on an opening edge (2b) of the dryer housing (2) Installation position of the dryer (1) and the functional module (5). Wäschetrockner (1) nach Anspruch 2,
gekennzeichnet durch
eine im Modulgehäuse (4) angeordnete Wanne (20) zum Auffangen von Kondensationsflüssigkeit (18), die eine trichterförmige Vertiefung umfasst, um die Flüssigkeit zu einer Öffnung (21) in einer Gehäusewand (4) zu leiten.Clothes dryer (1) according to claim 2,
marked by
a trough (20) for collecting condensing liquid (18) arranged in the module housing (4) and comprising a funnel-shaped depression for directing the liquid to an opening (21) in a housing wall (4). Wäschetrockner (1) nach Anspruch 2 ,
dadurch gekennzeichnet,
dass die Prozessluft (PL) im unteren Bereich in das Funktionsmodul (5), von dort ausgehend nach oben zunächst zum Wärmetauscher (15) und der nachgeschalteten Heizung (16) zugeführt werden kann, die von dort ausgehend aus dem Modulgehäuse (4) herausgeführt werden kann.Clothes dryer (1) according to claim 2,
characterized,
that the process air (PL) in the lower area in the function module (5), starting from there upwards initially to the heat exchanger (15) and the downstream heater (16) can be supplied, which are led out from there out of the module housing (4) can. Wäschetrockner (1) nach Anspruch 8,
dadurch gekennzeichnet,
dass der Wärmetauscher (15) dazu eingerichtet ist, eine Selbstreinigung mittels der im Wärmetauscher (15) entstehenden und ablaufenden Kondensationsflüssigkeit (18) zu bewirken.Clothes dryer (1) according to claim 8,
characterized,
that the heat exchanger (15) is adapted to effect a self-cleaning by means of the condensing liquid (18) produced and drained in the heat exchanger (15). Wäschetrockner (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass das Modulgehäuse (4) einen vom Prozessluftstrom (PL) bzw. Prozessluftkanal (8) getrennten Aufnahmeraum (23) für den Kompressor (14) und / oder weitere Funktionselemente (24) umfasst.Clothes dryer (1) according to claim 2,
characterized,
that the module housing (4) from a flow of process air (PL) and process air duct (8) separate receiving space (23) for the compressor (14) and / or further function elements (24). Wäschetrockner (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass der Aufnahmeraum (23) zumindest eine Lüftungsöffnung (22) oder zumindest ein Lüftungsgitter zur Kühlung des Kompressors (14) und/oder anderen Komponenten umfasst.Clothes dryer (1) according to claim 2,
characterized,
that the receiving space (23) comprises at least one ventilation opening (22) or at least a ventilation grill for cooling the compressor (14) and / or other components.
EP10401207A 2010-12-01 2010-12-01 Washer dryer with heat pump Active EP2460929B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10401207A EP2460929B1 (en) 2010-12-01 2010-12-01 Washer dryer with heat pump
ES10401207T ES2395521T3 (en) 2010-12-01 2010-12-01 Clothes dryer with heat pump
PL10401207T PL2460929T3 (en) 2010-12-01 2010-12-01 Washer dryer with heat pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10401207A EP2460929B1 (en) 2010-12-01 2010-12-01 Washer dryer with heat pump

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
DE102014206650A1 (en) 2014-04-07 2015-10-08 BSH Hausgeräte GmbH Dryer with a low-vibration heat pump and method of operation
DE102014013045A1 (en) 2014-09-03 2016-03-03 Detlef Görgens Clothes dryer or washing machine with laundry drying device with heat pump device, in which parts of the machines consist of mineral cast iron.
EP3135807A1 (en) 2015-08-27 2017-03-01 BSH Hausgeräte GmbH Household device with a vibration-damped pipeline and method for producing the same

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Publication number Priority date Publication date Assignee Title
DE4212700A1 (en) 1992-04-16 1993-10-21 Licentia Gmbh Laundry dryer with easy maintenance and cleaning - has motor driven blower, heat pump circuit comprising evaporator, compressor and condenser, all mounted in box that can be pulled out, etc.
EP1209277A2 (en) 2000-11-20 2002-05-29 Electrolux Zanussi S.p.A. Heat-pump clothes drying machine
US20050044744A1 (en) * 2003-08-07 2005-03-03 Masaya Tadano Drying apparatus
EP1634984A1 (en) * 2004-09-09 2006-03-15 Electrolux Home Products Corporation N.V. Combined drying-washing machine with heating pump
US20070151129A1 (en) * 2005-12-30 2007-07-05 Mcallister Karl D Nebulizer system for a fabric treatment appliance

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212700A1 (en) 1992-04-16 1993-10-21 Licentia Gmbh Laundry dryer with easy maintenance and cleaning - has motor driven blower, heat pump circuit comprising evaporator, compressor and condenser, all mounted in box that can be pulled out, etc.
EP1209277A2 (en) 2000-11-20 2002-05-29 Electrolux Zanussi S.p.A. Heat-pump clothes drying machine
US20050044744A1 (en) * 2003-08-07 2005-03-03 Masaya Tadano Drying apparatus
EP1634984A1 (en) * 2004-09-09 2006-03-15 Electrolux Home Products Corporation N.V. Combined drying-washing machine with heating pump
US20070151129A1 (en) * 2005-12-30 2007-07-05 Mcallister Karl D Nebulizer system for a fabric treatment appliance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014206650A1 (en) 2014-04-07 2015-10-08 BSH Hausgeräte GmbH Dryer with a low-vibration heat pump and method of operation
DE102014013045A1 (en) 2014-09-03 2016-03-03 Detlef Görgens Clothes dryer or washing machine with laundry drying device with heat pump device, in which parts of the machines consist of mineral cast iron.
EP3135807A1 (en) 2015-08-27 2017-03-01 BSH Hausgeräte GmbH Household device with a vibration-damped pipeline and method for producing the same
DE102015216441A1 (en) 2015-08-27 2017-03-02 BSH Hausgeräte GmbH Household appliance with a vibration-damped pipeline and process for its production

Also Published As

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PL2460929T3 (en) 2013-03-29
ES2395521T3 (en) 2013-02-13

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