EP2476796A1 - Washer dryer with heat pump - Google Patents

Washer dryer with heat pump Download PDF

Info

Publication number
EP2476796A1
EP2476796A1 EP11401008A EP11401008A EP2476796A1 EP 2476796 A1 EP2476796 A1 EP 2476796A1 EP 11401008 A EP11401008 A EP 11401008A EP 11401008 A EP11401008 A EP 11401008A EP 2476796 A1 EP2476796 A1 EP 2476796A1
Authority
EP
European Patent Office
Prior art keywords
process air
volume flow
pump
condenser
refrigerant
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
EP11401008A
Other languages
German (de)
French (fr)
Other versions
EP2476796B1 (en
Inventor
Ralf Bussmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to EP11401008A priority Critical patent/EP2476796B1/en
Priority to PL11401008T priority patent/PL2476796T3/en
Priority to ES11401008T priority patent/ES2395488T3/en
Publication of EP2476796A1 publication Critical patent/EP2476796A1/en
Application granted granted Critical
Publication of EP2476796B1 publication Critical patent/EP2476796B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—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 process air circuit in which supplied by means of a process air blower drying air via an air inlet of the drum, via an air outlet from this discharged, dehumidified in a heat exchanger and then reheated by a heater, a heat pump device with a refrigerant circuit, wherein the refrigerant in a piping system with an evaporator, a compressor with a compressor which is surrounded by a capsule housing substantially gas-tight, a condenser and circulates a throttle, wherein the heat exchanger containing the evaporator and the heater, the condenser of the heat pump.
  • the heat from the engine heats up 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.
  • the invention thus has the object to provide an efficient clothes dryer with a heat pump of simple design, in which a simple way, a quick, temporary removal of excess heat from the heat pump cycle is possible. According to the invention, this object is achieved by a tumble dryer having the features of independent claim 1 and by a method having the features of independent claim 11.
  • the dryer as a whole can be very easily constructed with only one drive motor for the process air blower and the drum drive, wherein the process air blower is optimized for a preferred direction.
  • the fan provides the full capacity, the heat pump operation is designed for this preferred direction.
  • the fan has a lower flow rate of the process air, so that the refrigerant in the refrigerant circuit can heat up quickly in the short term, since it is not sufficiently cooled due to the low flow rate of the process air.
  • the heat pump dryer includes a.
  • Cooling device comprising a pipe system in the condenser, which is designed to flow through a coolant for removing heat from the condenser. Since the condenser is the so-called hot component of the refrigerant circuit, a cooling of the refrigerant at this point is particularly effective possible because coolant, which is about room temperature or 40 ° C warm is still suitable for dissipating excess heat from the refrigerant.
  • the coolant is water. Water is almost always available and handling with this non-toxic medium is particularly easy and safe.
  • the dryer comprises a collecting tank for collecting accumulated condensate, which is intended for use as a coolant.
  • a collecting tank for collecting accumulated condensate, which is intended for use as a coolant.
  • a pump is provided, which is adapted to pump the coolant from the sump into or through the pipe system in the condenser.
  • the refrigerant can be cooled very accurately and specifically depending on the cooling demand.
  • the cooling times can be very precisely limited or controlled, so that the refrigerant circuit can be run in an optimal or suitable for the refrigerant temperature level.
  • the sump tray is used to collect or buffer the condensate for use as a coolant.
  • the condensate is conveyed by means of a pump from the sump into or through the pipe system.
  • the so-called condensate pump with the condensate in the sump or in the Outflow is pumped, also used to provide the coolant flow.
  • the pipe system of the cooling device is in this case between sump and sump or outlet.
  • the motor and the blower are adapted to a first volume flow for the process air in a forward direction of rotation of the drum and a second volume flow in a reversing direction of rotation of the drum promote.
  • the first volume flow is higher than the second volume flow, for example, the first volume flow can be two to four times the second volume flow. This provides a simple way of providing a high volume flow for an optimal drying process.
  • the dryer comprises a control device for controlling the engine and the compressor for the drying process.
  • the control device is further configured to pump the coolant through the pipe system in the condenser, when the process air is conveyed with the second volume flow.
  • the cooling of the refrigerant is activated only when the condenser is charged with a small volume flow of process air, so if the condenser, which serves to heat the process air, is cooled less than the first volume flow corresponding to the full flow.
  • control device is set up to operate the motor for a reversing direction of rotation of the drum and for the second volume flow of the process air in the presence of a predetermined amount of condensate or coolant. This ensures that the phase of the drying process with the lower volume flow is only activated when sufficient condensate is available for cooling.
  • the heat pump device it is expedient to arrange the heat pump device, the motor and the process air blower in a compact functional module of the tumble dryer.
  • the training has proven to be advantageous as a bottom-side functional module.
  • the invention further relates to a method for operating a tumble dryer according to one of the preceding claims, comprising temporal sections in which the process air is conveyed in its preferred direction, while the refrigerant is not cooled by means of the cooling liquid and further comprising temporal sections in which the process air conveyed in the opposite direction while the refrigerant is cooled by means of the cooling liquid or condensate.
  • one or more temporal sections in which the process air is conveyed with the first volume flow are longer than the time sections in which the process air is conveyed with the second, smaller volume flow. This avoids that too much heat is removed from the refrigerant.
  • the time segments for the preferred direction are at least twice as long compared to the time segments for the opposite direction. For the thorough mixing of the laundry, these shorter reversing phases of the drum are sufficient, the refrigerant circuit being only slightly influenced by the additional cooling with regard to its effect or effectiveness.
  • Fig. 1 shows in perspective a heat pump - tumble dryer 1.
  • the tumble dryer 1 in this case comprises a housing 2 in which a rotatably mounted drum 3 is arranged.
  • the functional module 5 which receives the components for the heat pump, the fan and the drive of the drum 3.
  • the process air PL by means of a blower 17 ( Fig. 2 ) and fed to the air inlet 6 of the drum 3.
  • the drying air PL passes from the drum 3 in the bottom module 5, in which in a channel 8 of the heat exchanger 15 (FIG. Fig. 2 ) for cooling and condensation of the process air PL and the heater 16 (FIG. Fig. 2 ) are arranged for heating the process air PL.
  • Fig. 2 shows the heat pump dryer according to the invention in a schematic sectional view.
  • the heat pump device 8a comprises a refrigerant circuit in which refrigerant circulates in a line system with an evaporator 1, a compressor 14 for compressing the refrigerant, a condenser 16 and a throttle 15a, the heat exchanger the evaporator 15 and the heater contains the condenser 16 of the heat pump 8a.
  • the evaporator 15 and the condenser 16 are arranged in the channel 8 such that the moist process air PL first flows through the evaporator 15, so that it is dehumidified due to the cooling and the consequent condensation.
  • the bottom-side functional module 5 further includes the motor 10, which drives the fan 9 and the drum 3 here.
  • the fan 9 is designed as a radial fan with curved blades 9a, so that in a preferred direction the full volume flow V1 (FIG. Fig. 4 ) for the process air PL.
  • V1 full volume flow
  • V2 lower volume flow
  • the heat pump device comprises a cooling device 11.
  • the cooling device 11 comprises a pipe system 21 in the condenser 16, which is designed to flow through a coolant for removing heat from the condenser 16.
  • the pipe system 21 is guided in several loops through the fins 12 or rib structure of the condenser 16 to the refrigerant, which also flows through a loop-like guided pipe system 13 a through the condenser 16 and through the arrangement of the fins 12.
  • the dryer 1 comprises a further pump 20 which pumps condensate from the collecting container 4 via the supply line 21 a to the pipe system 21 in the condenser 16.
  • the pump 20 is in this case attached directly to the collecting container 4.
  • a controllable valve can be used, which can release the flow of condensate due to gravity, wherein the pump 20 or the valve is activated by means of the control device 19.
  • Fig. 4 shows in a diagram the timing for the operation of the drying process.
  • the heat pump or the compressor 14 is in this case operated substantially uniformly, so that sets a stable refrigerant circuit.
  • the motor 10 is operated so that the drum 3 is rotated in the forward direction n and the full volume flow V1 is generated for the process air PL.
  • the condenser 16 which forms the heater for the process air, sufficiently cooled, so that the refrigerant does not heat up too much.
  • the motor 10 is operated so that the drum is rotated in reversing direction -n, wherein in this direction of rotation of the blower mounted on the same motor 9, only a smaller volume flow V2 for the process air PL is generated.
  • the temperature of the refrigerant now increases because less heat is removed from the condenser 16 via the process air PL.
  • the pump 20 is now activated to supply the condensate to the condenser 16 (Pump active) to cool it.
  • the cooling is stopped by the pump 20 or the valve is deactivated (pump inactive).
  • the motor 10 is switched back to the preferred direction, so that the drum is again rotated in the forward direction n and the fan 9 is operated in the preferred direction for generating the full volume flow V1. This process can be repeated several times.
  • the phases of the reversing rotation -n are each shorter than the rotational phases n in the forward direction of rotation or in the preferred direction of the blower 9.

Landscapes

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

Abstract

The tumble dryer (1) has a motor (10) arranged in a housing (2), where a drum (3) is mounted over a horizontal or inclined axis in rotating manner. A cooling device has a pipe system in a radiator (16), which is formed to flow through a coolant for removing heat from the condenser. An independent claim is also included for a method for operating a dryer.

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 Prozessluftkreislauf, in dem mittels eines Prozessluftgebläses Trocknungsluft 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 mit einem Verdichter, der von einem Kapselgehäuse im Wesentlichen gasdicht umgeben ist, einem Verflüssiger und einer Drossel zirkuliert, wobei der Wärmetauscher den Verdampfer und die Heizung den Verflüssiger der Wärmepumpe 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 process air circuit in which supplied by means of a process air blower drying air via an air inlet of the drum, via an air outlet from this discharged, dehumidified in a heat exchanger and then reheated by a heater, a heat pump device with a refrigerant circuit, wherein the refrigerant in a piping system with an evaporator, a compressor with a compressor which is surrounded by a capsule housing substantially gas-tight, a condenser and circulates a throttle, wherein the heat exchanger containing the evaporator and the heater, the condenser of the heat pump.

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 up 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.

Der Erfindung stellt sich somit die Aufgabe, einen effizienten Wäschetrockner mit einer einfach aufgebauten Wärmepumpe bereitzustellen, bei dem auf einfache Weise eine schnelle, temporäre Abführung überschüssiger Wärme aus dem Wärmepumpenkreislauf möglich ist. Erfindungsgemäß wird diese Aufgabe durch einen Wäschetrockner mit den Merkmalen des unabhängigen Anspruchs 1 und durch ein Verfahren mit den Merkmalen des unabhängigen Anspruchs 11 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den jeweils nachfolgenden abhängigen Ansprüchen.The invention thus has the object to provide an efficient clothes dryer with a heat pump of simple design, in which a simple way, a quick, temporary removal of excess heat from the heat pump cycle is possible. According to the invention, this object is achieved by a tumble dryer having the features of independent claim 1 and by a method having the features of independent claim 11. Advantageous embodiments and modifications of the invention will become apparent from the respective following dependent claims.

Der mit der Erfindung erreichte Vorteil besteht darin, dass der Trockner insgesamt sehr einfach mit nur einem Antriebsmotor für das Prozessluftgebläse und den Trommelantrieb aufgebaut werden kann, wobei das Prozessluftgebläse für eine Vorzugsrichtung optimiert ist. Das bedeutet, dass bei einer Trommeldrehrichtung in Vorwärtsrichtung das Gebläse die volle Förderleistung bereitstellt, wobei der Wärmepumpenbetrieb für diese Vorzugsrichtung ausgelegt ist. In Reversierrichtung der Trommel hat das Gebläse eine geringere Förderleistung der Prozessluft, sodass das Kältemittel im Kältemittelkreislauf sich kurzfristig stark erhitzen kann, da es aufgrund des geringen Volumenstroms der Prozessluft nicht genügend gekühlt wird. Um das Temperaturniveau des Kältemittels schnell zu stabilisieren, umfasst der Wärmepumpentrockner eine. Kühleinrichtung, die ein Rohrsystem im Verflüssiger umfasst, die zur Durchströmung eines Kühlmittel zum Abführen von Wärme aus dem Verflüssiger ausgebildet ist. Da der Verflüssiger die sogenannte heiße Komponente des Kältemittelkreislaufs ist, ist eine Abkühlung des Kältemittels an dieser Stelle besonders effektiv möglich, da Kühlmittel, das etwa Raumtemperatur oder bis 40°C warm ist immer noch für eine Abführung überschüssiger Wärme aus dem Kältemittel geeignet ist.The advantage achieved with the invention is that the dryer as a whole can be very easily constructed with only one drive motor for the process air blower and the drum drive, wherein the process air blower is optimized for a preferred direction. This means that in a drum rotation direction in the forward direction, the fan provides the full capacity, the heat pump operation is designed for this preferred direction. In the reversing direction of the drum, the fan has a lower flow rate of the process air, so that the refrigerant in the refrigerant circuit can heat up quickly in the short term, since it is not sufficiently cooled due to the low flow rate of the process air. To quickly stabilize the temperature level of the refrigerant, the heat pump dryer includes a. Cooling device comprising a pipe system in the condenser, which is designed to flow through a coolant for removing heat from the condenser. Since the condenser is the so-called hot component of the refrigerant circuit, a cooling of the refrigerant at this point is particularly effective possible because coolant, which is about room temperature or 40 ° C warm is still suitable for dissipating excess heat from the refrigerant.

In einer zweckmäßigen Weiterbildung ist das Kühlmittel Wasser. Wasser ist so gut wie immer verfügbar und die Handhabung mit diesem ungiftigen Medium ist besonders einfach und ungefährlich.In an expedient development, the coolant is water. Water is almost always available and handling with this non-toxic medium is particularly easy and safe.

In einer anderen, vorteilhaften Ausführung umfasst der Trockner einen Sammelbehälter zum Sammeln von anfallendem Kondensat, das zur Verwendung als Kühlmittel vorgesehen ist. Damit ist kein externer Wasseranschluss nötig.In another advantageous embodiment, the dryer comprises a collecting tank for collecting accumulated condensate, which is intended for use as a coolant. Thus, no external water connection is necessary.

In einer vorteilhaften Weiterbildung ist eine Pumpe vorgesehen, die dazu eingerichtet ist, das Kühlmittel aus dem Sammelbehälter in bzw. durch das Rohrsystem im Verflüssiger zu pumpen. Damit kann das Kältemittel abhängig vom Kühlungsbedarf sehr genau und gezielt gekühlt werden. Auch die Kühlungszeiten können sehr genau begrenzt bzw. gesteuert werden, sodass der Kältemittelkreislauf in einem optimalen oder für das Kältemittel geeigneten Temperaturniveau gefahren werden kann.In an advantageous development, a pump is provided, which is adapted to pump the coolant from the sump into or through the pipe system in the condenser. Thus, the refrigerant can be cooled very accurately and specifically depending on the cooling demand. The cooling times can be very precisely limited or controlled, so that the refrigerant circuit can be run in an optimal or suitable for the refrigerant temperature level.

In einer alternativen Ausführung wird die Auffangwanne zum Sammeln oder Zwischenspeichern des Kondensats zur Verwendung als Kühlmittel benutzt. Hierbei wird das Kondensat mittels einer Pumpe aus der Auffangwanne in bzw. durch das Rohrsystem gefördert. Somit wird die sogenannte Kondensatpumpe, mit der das Kondensat in den Sammelbehälter oder in den Abfluss gepumpt wird, auch zur Bereitstellung des Kühlmittelflusses verwendet. Es wird hierbei also keine zusätzliche Pumpe benötigt. Das Rohrsystem der Kühleinrichtung befindet sich hierbei zwischen Auffangwanne und Sammelbehälter bzw. Auslaßleitung.In an alternative embodiment, the sump tray is used to collect or buffer the condensate for use as a coolant. Here, the condensate is conveyed by means of a pump from the sump into or through the pipe system. Thus, the so-called condensate pump, with the condensate in the sump or in the Outflow is pumped, also used to provide the coolant flow. There is no need for an additional pump. The pipe system of the cooling device is in this case between sump and sump or outlet.

Insgesamt ist es vorteilhaft, das Gebläse und der Drehantrieb der Trommel mit einem einzigen Antriebsmotor anzutreiben, wobei der Motor und das Gebläse dazu ausgebildet sind, einen ersten Volumenstrom für die Prozessluft bei einer Vorwärtsdrehrichtung der Trommel und einen zweiten Volumenstrom bei einer reversierenden Drehrichtung der Trommel zu fördern. Der erste Volumenstrom ist höher, als der zweite Volumenstrom, beispielsweise kann der erste Volumenstrom das zwei bis vierfache des zweiten Volumenstromes betragen. Damit wird auf einfache Weise ein hoher Volumenstrom für einen optimalen Trocknungsprozess bereitgestellt.Overall, it is advantageous to drive the fan and the rotary drive of the drum with a single drive motor, wherein the motor and the blower are adapted to a first volume flow for the process air in a forward direction of rotation of the drum and a second volume flow in a reversing direction of rotation of the drum promote. The first volume flow is higher than the second volume flow, for example, the first volume flow can be two to four times the second volume flow. This provides a simple way of providing a high volume flow for an optimal drying process.

In einer zweckmäßigen Ausführung umfasst der Trockner eine Steuereinrichtung zum Steuern des Motors und des Kompressors für den Trocknungsprozess. Die Steuereinrichtung ist ferner dazu eingerichtet, das Kühlmittel durch das Rohrsystem im Verflüssiger zu pumpen, wenn die Prozessluft mit dem zweiten Volumenstrom gefördert wird. Somit wird die Kühlung des Kältemitteln nur dann aktiviert, wenn der Verflüssiger mit einem geringen Volumenstrom der Prozessluft beauflagt wird, also wenn der Verflüssiger, der zum Aufheizen der Prozessluft dient, weniger gekühlt wird, als beim ersten Volumenstrom, der dem vollen Volumenstrom entspricht.In an expedient embodiment, the dryer comprises a control device for controlling the engine and the compressor for the drying process. The control device is further configured to pump the coolant through the pipe system in the condenser, when the process air is conveyed with the second volume flow. Thus, the cooling of the refrigerant is activated only when the condenser is charged with a small volume flow of process air, so if the condenser, which serves to heat the process air, is cooled less than the first volume flow corresponding to the full flow.

In einer vorteilhaften Weiterbildung ist die Steuereinrichtung dazu eingerichtet, bei Vorhandensein einer vorbestimmten Kondensatmenge oder Kühlmittelmenge den Motor für eine reversierende Drehrichtung der Trommel und für den zweiten Volumenstrom der Prozessluft zu betreiben. Damit wird sichergestellt, dass die Phase des Trocknungsprozesses mit dem geringeren Volumenstrom erst dann aktiviert wird, wenn genügend Kondensat zur Kühlung bereitsteht.In an advantageous development, the control device is set up to operate the motor for a reversing direction of rotation of the drum and for the second volume flow of the process air in the presence of a predetermined amount of condensate or coolant. This ensures that the phase of the drying process with the lower volume flow is only activated when sufficient condensate is available for cooling.

Insgesamt ist es zweckmäßig, die Wärmepumpeneinrichtung, den Motor und das Prozessluftgebläse in einem kompakten Funktionsmodul des Wäschetrockners anzuordnen. Hierbei hat sich die Ausbildung als bodenseitiges Funktionsmodul als vorteilhaft erwiesen.Overall, it is expedient to arrange the heat pump device, the motor and the process air blower in a compact functional module of the tumble dryer. Here, the training has proven to be advantageous as a bottom-side functional module.

Die Erfindung betrifft ferner ein Verfahren zum Betreiben eines Wäschetrockners gemäß einem der vorherigen Ansprüche, umfassend zeitliche Abschnitte, in denen die Prozessluft in ihrer Vorzugsrichtung gefördert, während das Kältemittel nicht mittels der Kühlflüssigkeit gekühlt wird und ferner umfassend zeitliche Abschnitte in denen die Prozessluft in Gegenrichtung gefördert, während das Kältemittel mittels der Kühlflüssigkeit oder Kondensat gekühlt wird.The invention further relates to a method for operating a tumble dryer according to one of the preceding claims, comprising temporal sections in which the process air is conveyed in its preferred direction, while the refrigerant is not cooled by means of the cooling liquid and further comprising temporal sections in which the process air conveyed in the opposite direction while the refrigerant is cooled by means of the cooling liquid or condensate.

Hierbei ist es zweckmäßig, dass ein oder mehrere zeitliche Abschnitte, in denen die Prozessluft mit dem ersten Volumenstrom gefördert wird, länger sind, als die zeitlichen Abschnitte, in denen die Prozessluft mit dem zweiten, kleineren Volumenstrom gefördert wird. Damit wird vermieden, dass dem Kältemittel zu viel Wärme entzogen wird. Beim Umschalten der Trommeldrehung in die Vorzugsrichtung, bei der wieder der erste, volle Volumenstrom für die Prozessluft zur Verfügung steht, kann das Kühlen des Verflüssigers beendet werden, wobei sich der Verflüssiger nach kurzer Zeit auf seine vorgesehene Temperatur wieder erwärmen kann und der Kältemittelkreislauf sich wieder im optimalen Temperaturniveau befindet.In this case, it is expedient that one or more temporal sections in which the process air is conveyed with the first volume flow are longer than the time sections in which the process air is conveyed with the second, smaller volume flow. This avoids that too much heat is removed from the refrigerant. When switching the drum rotation in the preferred direction, in which again the first, full volume flow for the process air is available, the cooling of the condenser can be stopped, the condenser can heat up to its intended temperature after a short time and the refrigerant circuit again at the optimum temperature level.

In einer zweckmäßigen Weiterbildung sind die zeitlichen Abschnitte für die Vorzugsrichtung gegenüber den zeitlichen Abschnitten für die Gegenrichtung jeweils zumindest doppelt so lang. Für die Durchmischung der Wäsche reichen diese kürzeren Reversierphasen der Trommel aus, wobei der Kältemittelkreislauf durch die zusätzliche Kühlung hinsichtlich seiner Wirkung bzw. Effektivität nur geringfügig beeinflusst wird.In an expedient development, the time segments for the preferred direction are at least twice as long compared to the time segments for the opposite direction. For the thorough mixing of the laundry, these shorter reversing phases of the drum are sufficient, the refrigerant circuit being only slightly influenced by the additional cooling with regard to its effect or effectiveness.

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

Fig. 1:
eine perspektivische Darstellung eines Wäschetrockners;
Fig. 2:
eine schematische Darstellung der Komponenten der Wärmepumpe;
Fig. 3:
eine skizzierte, detaillierte Ansicht des Verflüssigers und
Fig. 4:
ein Diagramm für den zeitlichen Ablauf.
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 perspective view of a clothes dryer;
Fig. 2:
a schematic representation of the components of the heat pump;
3:
a sketched, detailed view of the condenser and
4:
a diagram for the timing.

Fig. 1 zeigt in der Perspektive einen Wärmepumpen - Wäschetrockner 1. Der Wäschetrockner 1 umfasst hierbei ein Gehäuse 2 in dem eine drehbar gelagerte Trommel 3 angeordnet ist. In dem Gehäuse 2 befindet sich bodenseitig unterhalb der Trommel 3, bezogen auf die betriebsgemäße Aufstellposition des Trockners 1, das Funktionsmodul 5, das die Komponenten für die Wärmepumpe, das Gebläse und den Antrieb der Trommel 3 aufnimmt. Im Funktionsmodul 5 wird die Prozessluft PL mittels eines Gebläses 17 (Fig. 2) erzeugt und zum Lufteinlass 6 der Trommel 3 zugeführt. Durch den Luftauslass 7 gelangt die Trocknungsluft PL aus der Trommel 3 in das Bodenmodul 5, in dem in einem Kanal 8 der Wärmetauscher 15 (Fig. 2) zur Abkühlung und Kondensation der Prozessluft PL und die Heizung 16 (Fig. 2) zum Erwärmen der Prozessluft PL angeordnet sind. Fig. 1 shows in perspective a heat pump - tumble dryer 1. The tumble dryer 1 in this case comprises a housing 2 in which a rotatably mounted drum 3 is arranged. In the housing 2 is below the bottom of the drum 3, based on the operating position of the dryer 1, the functional module 5, which receives the components for the heat pump, the fan and the drive of the drum 3. In the functional module 5, the process air PL by means of a blower 17 ( Fig. 2 ) and fed to the air inlet 6 of the drum 3. Through the air outlet 7, the drying air PL passes from the drum 3 in the bottom module 5, in which in a channel 8 of the heat exchanger 15 (FIG. Fig. 2 ) for cooling and condensation of the process air PL and the heater 16 (FIG. Fig. 2 ) are arranged for heating the process air PL.

Fig. 2 zeigt den erfindungsgemäßen Wärmepumpen-Trockner in einer schematischen Schnittdarstellung. Hier ist zu erkennen, dass die Wärmepumpeneinrichtung 8a einen Kältemittelkreislauf umfasst, bei dem Kältemittel in einem Leitungssystem mit einem Verdampfer 1, einem Kompressor 14 zum Verdichten des Kältemittels, einem Verflüssiger 16 und einer Drossel 15a zirkuliert, wobei der Wärmetauscher den Verdampfer 15 und die Heizung den Verflüssiger 16 der Wärmepumpe 8a enthält. Der Verdampfer 15 und der Verflüssiger 16 sind im Kanal 8 derart angeordnet, dass die feuchte Prozessluft PL zuerst den Verdampfer 15 durchströmt, damit sie aufgrund der Abkühlung und der daraus folgenden Kondensation entfeuchtet wird. Anschließend durchströmt sie den nachgeschalteten Verflüssiger 16, der als Heizung wirkt und die Prozessluft PL aufheizt, sodass die erwärmte Prozessluft PL durch den Lufteinlass 6 in die Trommel 3 eingelassen und damit der zu behandelnden Textilien zugeführt wird. In der Auffangwanne 18 wird anfallendes Kondensat aufgefangen und mittels der Kondensatpumpe 17 zum Sammelbehälter 4 gepumpt. Fig. 2 shows the heat pump dryer according to the invention in a schematic sectional view. Here, it can be seen that the heat pump device 8a comprises a refrigerant circuit in which refrigerant circulates in a line system with an evaporator 1, a compressor 14 for compressing the refrigerant, a condenser 16 and a throttle 15a, the heat exchanger the evaporator 15 and the heater contains the condenser 16 of the heat pump 8a. The evaporator 15 and the condenser 16 are arranged in the channel 8 such that the moist process air PL first flows through the evaporator 15, so that it is dehumidified due to the cooling and the consequent condensation. It then flows through the downstream condenser 16, which as Heating acts and the process air PL heats up, so that the heated process air PL is admitted through the air inlet 6 in the drum 3 and thus the textiles to be treated is supplied. In the drip tray 18 accumulating condensate is collected and pumped by the condensate pump 17 to the sump 4.

Das bodenseitige Funktionsmodul 5 umfasst ferner den Motor 10, der hier das Gebläse 9 und die Trommel 3 antreibt. Das Gebläse 9 ist als Radiallüfter mit gekrümmten Schaufeln 9a ausgebildet, sodass es in einer Vorzugsrichtung den vollen Volumenstrom V1 (Fig. 4) für die Prozessluft PL bereitstellt. Bei Drehung des Motors 10 in Gegenrichtung, also wenn die Trommel 3 in reversierender Richtung gedreht wird, steht ein geringerer Volumenstrom V2, (Fig. 4), der etwa die Hälfte bis ein Viertel des vollen Volumenstromes betragen kann, zur Verfügung.The bottom-side functional module 5 further includes the motor 10, which drives the fan 9 and the drum 3 here. The fan 9 is designed as a radial fan with curved blades 9a, so that in a preferred direction the full volume flow V1 (FIG. Fig. 4 ) for the process air PL. Upon rotation of the motor 10 in the opposite direction, so when the drum 3 is rotated in the reversing direction, there is a lower volume flow V2, ( Fig. 4 ), which may be about one-half to one-quarter of the full volume flow available.

Damit das Kältemittel im Wärmepumpenkreislauf sich nicht zu stark erwärmt, ist es je nach Betriebsbedingungen notwendig, dass es zeitweise gekühlt werden muss. Hierzu umfasst die Wärmepumpeneinrichtung eine Kühleinrichtung 11. Wie in Fig. 3 im Detail dargestellt, umfasst die Kühleinrichtung 11 ein Rohrsystem 21 im Verflüssiger 16, das zur Durchströmung eines Kühlmittels zum Abführen von Wärme aus dem Verflüssiger 16 ausgebildet ist. Das Rohrsystem 21 ist dabei in mehreren Schlaufen durch die Lamellen 12 oder Rippenstruktur des Verflüssigers 16 geführt, um das Kältemittel, das ebenfalls durch ein schlaufenartig geführtes Rohrsystem 13a durch den Verflüssiger 16 bzw. durch die Anordnung der Lamellen 12 strömt. Gemäß Fig. 2 umfasst der Trockner 1 eine weitere Pumpe 20, die Kondensat aus dem Sammelbehälter 4 über die Zuführungsleitung 21 a zum Rohrsystem 21 im Verflüssiger 16 pumpt. Die Pumpe 20 ist hierbei unmittelbar am Sammelbehälter 4 angebracht. Anstelle der Pumpe 20 kann auch ein steuerbares Ventil verwendet werden, das den Fluss des Kondensats aufgrund der Schwerkraft freigeben kann, wobei die Pumpe 20 oder das Ventil mittels der Steuereinrichtung 19 aktiviert wird.To prevent the refrigerant in the heat pump cycle from overheating, depending on the operating conditions, it may be necessary to temporarily cool it. For this purpose, the heat pump device comprises a cooling device 11. As in Fig. 3 Shown in detail, the cooling device 11 comprises a pipe system 21 in the condenser 16, which is designed to flow through a coolant for removing heat from the condenser 16. The pipe system 21 is guided in several loops through the fins 12 or rib structure of the condenser 16 to the refrigerant, which also flows through a loop-like guided pipe system 13 a through the condenser 16 and through the arrangement of the fins 12. According to Fig. 2 the dryer 1 comprises a further pump 20 which pumps condensate from the collecting container 4 via the supply line 21 a to the pipe system 21 in the condenser 16. The pump 20 is in this case attached directly to the collecting container 4. Instead of the pump 20, a controllable valve can be used, which can release the flow of condensate due to gravity, wherein the pump 20 or the valve is activated by means of the control device 19.

Fig. 4 zeigt in einem Diagramm den zeitlichen Ablauf für den Betrieb des Trocknungsvorgangs. Die Wärmepumpe bzw. der Kompressor 14 wird hierbei im Wesentlichen gleichmäßig betrieben, sodass sich ein stabiler Kältemittelkreislauf einstellt. Zum Zeitpunkt t=1 wird der Motor 10 so betrieben, dass die Trommel 3 in Vorwärtsrichtung n gedreht und der volle Volumenstrom V1 für die Prozessluft PL erzeugt wird. Bei diesem Volumenstrom V1 wird der Verflüssiger 16, der die Heizung für die Prozessluft bildet, hinreichend gekühlt, sodass sich das Kältemittel nicht zu stark aufheizt. Zum Zeitpunkt t=2 wird der Motor 10 so betrieben, dass die Trommel in reversierender Drehrichtung -n gedreht wird, wobei bei dieser Drehrichtung des am selben Motor angebrachten Gebläses 9 nur ein kleinerer Volumenstrom V2 für die Prozessluft PL erzeugt wird. Ab diesem Zeitpunkt erhöht sich nun die Temperatur des Kältemittels, da weniger Wärme aus dem Verflüssiger 16 über die Prozessluft PL abgeführt wird. Zum Zeitpunkt T=3 wird nun die Pumpe 20 zum Zuführen des Kondensats zum Verflüssiger 16 aktiviert (Pump active), um diesen damit zu kühlen. Zum Zeitpunkt T=4 wird die Kühlung beendet, indem die Pumpe 20 oder das Ventil deaktiviert (Pump inactive) wird. Anschließend wird zum Zeitpunkt T=5 der Motor 10 wieder in die Vorzugsrichtung umgeschaltet, sodass die Trommel wieder in die Vorwärtsrichtung n gedreht wird und das Gebläse 9 in Vorzugsrichtung zur Erzeugung des vollen Volumenstroms V1 betrieben wird. Dieser Vorgang kann mehrmals wiederholt werden. Die Phasen der reversierenden Drehung -n sind jeweils kürzer, als die Drehphasen n in Vorwärtsdrehrichtung bzw. in Vorzugsrichtung des Gebläses 9. Fig. 4 shows in a diagram the timing for the operation of the drying process. The heat pump or the compressor 14 is in this case operated substantially uniformly, so that sets a stable refrigerant circuit. At time t = 1, the motor 10 is operated so that the drum 3 is rotated in the forward direction n and the full volume flow V1 is generated for the process air PL. In this volume flow V1, the condenser 16, which forms the heater for the process air, sufficiently cooled, so that the refrigerant does not heat up too much. At the time t = 2, the motor 10 is operated so that the drum is rotated in reversing direction -n, wherein in this direction of rotation of the blower mounted on the same motor 9, only a smaller volume flow V2 for the process air PL is generated. From this point on, the temperature of the refrigerant now increases because less heat is removed from the condenser 16 via the process air PL. At time T = 3, the pump 20 is now activated to supply the condensate to the condenser 16 (Pump active) to cool it. At time T = 4, the cooling is stopped by the pump 20 or the valve is deactivated (pump inactive). Subsequently, at the time T = 5, the motor 10 is switched back to the preferred direction, so that the drum is again rotated in the forward direction n and the fan 9 is operated in the preferred direction for generating the full volume flow V1. This process can be repeated several times. The phases of the reversing rotation -n are each shorter than the rotational phases n in the forward direction of rotation or in the preferred direction of the blower 9.

Claims (13)

Wäschetrockner (1), umfassend eine in einem Gehäuse (2) angeordneten, mittels eines Motors (10) antreibbaren, über eine horizontale oder geneigten Achse drehbar gelagerten Trommel (3), einen geschlossenen Prozessluftkreislauf (PL), in dem mittels eines Prozessluftgebläses (9) Trocknungsluft über einen Lufteinlass (6) der Trommel (3) zugeführt, über einen Luftauslass (7) aus dieser abgeführt, in einem Wärmetauscher (15) mittels Kondensation entfeuchtet und danach durch eine Heizung (16) wieder erwärmt werden kann, einer Wärmepumpeneinrichtung mit einem Kältemittelkreislauf, bei dem Kältemittel in einem Leitungssystem (13) mit einem Verdampfer (15), einem Kompressor (14) zum Verdichten des Kältemittels, einem Verflüssiger (16) und einer Drossel (15a) zirkuliert, wobei der Wärmetauscher den Verdampfer (15) und die Heizung den Verflüssiger (16) der Wärmepumpe enthält,
gekennzeichnet durch
eine Kühleinrichtung, die ein Rohrsystem (21) im Verflüssiger (16) umfasst, die zur Durchströmung eines Kühlmittel zum Abführen von Wärme aus dem Verflüssiger (16) ausgebildet ist.Laundry drier (1), comprising a drum (3), which can be driven by a motor (10) and is rotatably mounted on a horizontal or inclined axis in a housing (2), a closed process air circuit (PL), in which by means of a process air blower (9 ) Drying air via an air inlet (6) of the drum (3), via an air outlet (7) discharged therefrom, dehumidified in a heat exchanger (15) by condensation and then reheated by a heater (16), with a heat pump device a refrigerant circuit in which refrigerant in a line system (13) with an evaporator (15), a compressor (14) for compressing the refrigerant, a condenser (16) and a throttle (15a) circulates, wherein the heat exchanger, the evaporator (15) and the heater contains the condenser (16) of the heat pump,
marked by
a cooling device comprising a pipe system (21) in the condenser (16), which is designed to flow through a coolant for removing heat from the condenser (16). Wäschetrockner (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass das Kühlmittel Wasser ist.Clothes dryer (1) according to claim 1,
characterized,
that the coolant is water. Wäschetrockner (1) nach Anspruch 2,
gekennzeichnet durch einen Sammelbehälter (4) zum Sammeln von anfallendem Kondensat, das zur Verwendung als Kühlmittel vorgesehen ist.Clothes dryer (1) according to claim 2,
characterized by a collecting vessel (4) for collecting accumulated condensate intended for use as a coolant. Wäschetrockner (1) nach Anspruch 3,
gekennzeichnet durch
eine Pumpe (20), die dazu eingerichtet ist, das Kühlmittel aus dem Sammelbehälter (4) in bzw. durch das Rohrsystem (21) im Verflüssiger (16) zu pumpen.Clothes dryer (1) according to claim 3,
marked by
a pump (20) adapted to pump the refrigerant from the sump (4) into or through the pipe system (21) in the condenser (16). Wäschetrockner (1) nach Anspruch 2,
gekennzeichnet durch eine Auffangwanne zum (18) zum Auffangen von anfallendem Kondensat, das zur Verwendung als Kühlmittel vorgesehen ist und mittels einer Pumpe (17) in bzw. durch das Rohrsystem (21) gefördert werden kann.Clothes dryer (1) according to claim 2,
characterized by a collecting tray for (18) for collecting accumulating condensate, which is intended for use as a coolant and by means of a pump (17) in or through the pipe system (21) can be promoted. Wäschetrockner (1) nach Anspruch 4 oder 5,
gekennzeichnet durch
eine Steuereinrichtung (19) zum Betreiben des der Pumpe (20), die dazu ausgebildet ist, die Pumpe (20) zeitweise zu aktivieren, um das Kühlmittel bedarfsweise in das Rohrsystem (21) zu fördern.Clothes dryer (1) according to claim 4 or 5,
marked by
a control device (19) for operating that of the pump (20), which is designed to To activate pump (20) temporarily, in order to promote the coolant as needed in the pipe system (21). Wäschetrockner (1) nach Anspruch einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass das Gebläse (9) und der Drehantrieb der Trommel (3) mit einem einzigen Antriebsmotor (10) erfolgt, wobei der Motor (10) dazu ausgebildet ist, die Prozessluft (PL) mit einem ersten Volumenstrom (V1) bei einer Vorwärtsdrehrichtung (n) der Trommel (3) und mit einem zweiten Volumenstrom (V2) bei einer reversierenden Drehrichtung (-n) der Trommel (3) zu fördern.Laundry drier (1) according to any one of claims 1 to 6,
characterized,
in that the fan (9) and the rotary drive of the drum (3) take place with a single drive motor (10), the motor (10) being designed to supply the process air (PL) with a first volume flow (V1) in a forward direction of rotation (n ) of the drum (3) and with a second volume flow (V2) in a reversing direction (-n) of the drum (3) to promote. Wäschetrockner (1) nach Anspruch 7,
gekennzeichnet durch,
die Steuereinrichtung (19) zum Steuern des Motors (10) und des Kompressors für den dazu eingerichtet ist, das Kühlmittel bei einer zu fördernden Prozessluft (PL) mit dem zweiten Volumenstrom (V2) durch das Rohrsystem (21) im Verflüssiger (16) zu pumpen.Clothes dryer (1) according to claim 7,
characterized by
the control device (19) for controlling the motor (10) and the compressor for which is adapted to the coolant at a process air to be conveyed (PL) with the second volume flow (V2) through the pipe system (21) in the condenser (16) pump. Wäschetrockner (1) nach Anspruch 8,
dadurch gekennzeichnet,
dass die Steuereinrichtung (19) dazu eingerichtet ist, bei Vorhandensein einer vorbestimmten Kondensatmenge oder Kühlmittelmenge den Motor (10) für eine reversierende Drehrichtung (-n) der Trommel (3) und für eine Prozessluftströmung (PL) mit dem zweiten Volumenstrom (V2) zu betreiben.Clothes dryer (1) according to claim 8,
characterized,
in that the control device (19) is adapted, in the presence of a predetermined amount of condensate or coolant, to the motor (10) for a reversing direction (-n) of the drum (3) and for a process air flow (PL) with the second volume flow (V2) operate. Wäschetrockner (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass die Komponenten (13, 14, 15, 15a, 16) der Wärmepumpeneinrichtung, der Motor (10) und das Prozessluftgebläse (9) in einem kompakten Funktionsmodul (5) des Wäschetrockners (1) angeordnet sind.Clothes dryer (1) according to claim 1,
characterized,
in that the components (13, 14, 15, 15a, 16) of the heat pump device, the motor (10) and the process air blower (9) are arranged in a compact functional module (5) of the tumble dryer (1). Verfahren zum Betreiben eines Wäschetrockners (1) gemäß einem der vorherigen Ansprüche, umfassend zeitliche Abschnitte, in denen die Prozessluft (PL) mit einem ersten Volumenstrom (V1) gefördert wird, während das Kältemittel nicht mittels der Kühlflüssigkeit gekühlt wird und ferner umfassend zeitliche Abschnitte, in denen die Prozessluft (PL) mit einem zweiten Volumenstrom (V2) gefördert wird, während das Kältemittel mittels der Kühlflüssigkeit oder Kondensat gekühlt wird.Method for operating a tumble dryer (1) according to one of the preceding claims, comprising temporal sections in which the process air (PL) is conveyed with a first volume flow (V1), while the refrigerant is not cooled by means of the cooling liquid and further comprising time segments, in which the process air (PL) with a second volume flow (V2) is promoted, while the refrigerant is cooled by means of the cooling liquid or condensate. Verfahren nach Anspruch 11,
dadurch gekennzeichnet,
dass ein oder mehrere zeitliche Abschnitte, in denen die Prozessluft (PL) mit dem ersten, höheren Volumenstrom (V1) gefördert wird, länger sind, als die zeitlichen Abschnitte, in denen die Prozessluft (PL) in Gegenrichtung (PR) dem zweiten, geringeren Volumenstrom (V2) gefördert wird.Method according to claim 11,
characterized,
in that one or more time intervals in which the process air (PL) is conveyed with the first, higher volume flow (V1) are longer than the time intervals in which the process air (PL) in the opposite direction (PR) is the second, lower one Volume flow (V2) is promoted. Verfahren nach Anspruch 12,
dadurch gekennzeichnet,
dass die zeitlichen Abschnitte für den hohen Volumenstrom (V1) gegenüber den zeitlichen Abschnitten für geringeren Volumenstrom (V2) jeweils zumindest doppelt so lang sind.Method according to claim 12,
characterized,
that the temporal sections for the high volume flow (V1) are at least twice as long compared to the time sections for lower flow (V2).
EP11401008A 2011-01-13 2011-01-13 Washer dryer with heat pump Active EP2476796B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP11401008A EP2476796B1 (en) 2011-01-13 2011-01-13 Washer dryer with heat pump
PL11401008T PL2476796T3 (en) 2011-01-13 2011-01-13 Washer dryer with heat pump
ES11401008T ES2395488T3 (en) 2011-01-13 2011-01-13 Clothes dryer with heat pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11401008A EP2476796B1 (en) 2011-01-13 2011-01-13 Washer dryer with heat pump

Publications (2)

Publication Number Publication Date
EP2476796A1 true EP2476796A1 (en) 2012-07-18
EP2476796B1 EP2476796B1 (en) 2012-11-21

Family

ID=44115544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11401008A Active EP2476796B1 (en) 2011-01-13 2011-01-13 Washer dryer with heat pump

Country Status (3)

Country Link
EP (1) EP2476796B1 (en)
ES (1) ES2395488T3 (en)
PL (1) PL2476796T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014206538A1 (en) * 2013-06-24 2014-12-31 Diehl Ako Stiftung & Co. Kg Electronic household appliance with heat pump
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.
DE102014225806A1 (en) 2014-12-15 2016-06-16 BSH Hausgeräte GmbH Household appliance for drying laundry
EP3323932A1 (en) * 2016-11-22 2018-05-23 BSH Hausgeräte GmbH A clothes dryer comprising an air heating tunnel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015006575U1 (en) 2015-06-25 2015-10-20 Fritz Curtius Laundry dryer
DE102015013570A1 (en) 2015-10-20 2017-04-20 Fritz Curtius Heat pump dryer for laundry

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409607A1 (en) * 1993-04-21 1994-10-27 Miele & Cie Condensation-type laundry drier with a heat pump
EP1209277A2 (en) 2000-11-20 2002-05-29 Electrolux Zanussi S.p.A. Heat-pump clothes drying machine
DE102005062939A1 (en) * 2005-12-29 2007-07-05 BSH Bosch und Siemens Hausgeräte GmbH A method for drying washing in a domestic washing and drying machine has a heat pump circuit associated with the clothes drum the heat exchangers of which respectively demoisturise and heat circulated air
WO2008086933A1 (en) * 2007-01-15 2008-07-24 BSH Bosch und Siemens Hausgeräte GmbH Condensation dryer comprising a heat pump and method for operating the same
EP2058427A1 (en) * 2007-11-06 2009-05-13 BSH Electrodomésticos España, S.A. Household appliance having a heat pump unit and means for cooling a component thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409607A1 (en) * 1993-04-21 1994-10-27 Miele & Cie Condensation-type laundry drier with a heat pump
EP1209277A2 (en) 2000-11-20 2002-05-29 Electrolux Zanussi S.p.A. Heat-pump clothes drying machine
DE102005062939A1 (en) * 2005-12-29 2007-07-05 BSH Bosch und Siemens Hausgeräte GmbH A method for drying washing in a domestic washing and drying machine has a heat pump circuit associated with the clothes drum the heat exchangers of which respectively demoisturise and heat circulated air
WO2008086933A1 (en) * 2007-01-15 2008-07-24 BSH Bosch und Siemens Hausgeräte GmbH Condensation dryer comprising a heat pump and method for operating the same
EP2058427A1 (en) * 2007-11-06 2009-05-13 BSH Electrodomésticos España, S.A. Household appliance having a heat pump unit and means for cooling a component thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014206538A1 (en) * 2013-06-24 2014-12-31 Diehl Ako Stiftung & Co. Kg Electronic household appliance with heat pump
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.
DE102014225806A1 (en) 2014-12-15 2016-06-16 BSH Hausgeräte GmbH Household appliance for drying laundry
EP3323932A1 (en) * 2016-11-22 2018-05-23 BSH Hausgeräte GmbH A clothes dryer comprising an air heating tunnel
CN108085942A (en) * 2016-11-22 2018-05-29 博西华电器（江苏）有限公司 Dryer with air heating passage

Also Published As

Publication number Publication date
PL2476796T3 (en) 2013-03-29
ES2395488T3 (en) 2013-02-13
EP2476796B1 (en) 2012-11-21

Similar Documents

Publication Publication Date Title
EP2476796B1 (en) Washer dryer with heat pump
EP2250313B1 (en) Tumble drier comprising a heat pump and heating system and method for operating the same
EP2140061B1 (en) Condenser tumble dryer and method for operating a condenser tumble dryer
EP1983095B1 (en) Laundry drier with a heating in the heat pump circuit
CH701685A2 (en) Laundry drier, has auxiliary heat exchanger arranged in process air circuit for extracting heat from process air circuit, and controller for controlling heat output extracted by heat exchanger depending on signal of temperature sensor
DE102013111491B4 (en) Clothing dryer and operating method of a clothes dryer
EP2439329B1 (en) Washer-dryer with a drying unit
EP2322072A2 (en) Dishwasher with a latent heat reservoir
EP2238286A1 (en) Dryer having heat pump and fan
DE102014219457A1 (en) Dryer with a heat pump and a supplementary heater and process for its operation
EP2072656A1 (en) Laundry drying device and method for operating same
DE102011007715A1 (en) Clothes dryer has drive unit that is provided with driven shaft to which compressor is connected, such that heat pump is connected to condenser through compressor
DE102016210265A1 (en) Method for determining the residual moisture content in a condensation dryer and suitable condensation dryer
EP2343411A1 (en) Washer dryer with heat pump
EP2041359B1 (en) Domestic device for the care of laundry items and method for passing cooling air into such a device
EP2407587B1 (en) Washer dryer with heat pump
DE102011005164A1 (en) Method and device for drying a good
CH705546A2 (en) Clothes dryer e.g. tumble dryer has process air circuit that is arranged with additional heat exchanger for removing heat from process air circuit, and discharge of process air heat to ambient air
DE102014010498A1 (en) Method for drying laundry and dryer
DE102014106754A1 (en) Dryer device with a magnetocaloric unit
DE102007052079A1 (en) Exhaust air dryer with heat recovery and condensate tray and process for its operation
EP2460929B1 (en) Washer dryer with heat pump
CH345863A (en) Clothes dryer
DE102012223437A1 (en) Laundry dryer e.g. domestic laundry dryer has fan device that is arranged such that air conveying directions of fan device are changed in order to convey air to specific dryer region
DE202017100845U1 (en) Arrangement for drying or heating a converter cabinet

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20110630

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 585138

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20121130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502011000218

Country of ref document: DE

Effective date: 20130117

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502011000218

Country of ref document: DE

Effective date: 20121127

Ref country code: ES

Ref legal event code: GC2A

Effective date: 20130114

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2395488

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20130213

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

Ref country code: PL

Ref legal event code: LICE

Effective date: 20130110

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20121121

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130221

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130321

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130222

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

BERE Be: lapsed

Owner name: MIELE & CIE. K.G.

Effective date: 20130131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130221

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130131

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

26N No opposition filed

Effective date: 20130822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130131

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502011000218

Country of ref document: DE

Effective date: 20130822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130113

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20110113

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121121

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 585138

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160113

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20221213

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230124

Year of fee payment: 13

Ref country code: ES

Payment date: 20230228

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20230102

Year of fee payment: 13

Ref country code: IT

Payment date: 20230120

Year of fee payment: 13

Ref country code: GB

Payment date: 20230124

Year of fee payment: 13

Ref country code: DE

Payment date: 20230131

Year of fee payment: 13

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230529