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EP2759635B1 - Laundry dryer with additional heating and additional heat exchanger - Google Patents

Laundry dryer with additional heating and additional heat exchanger Download PDF

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Publication number
EP2759635B1
EP2759635B1 EP14000037.3A EP14000037A EP2759635B1 EP 2759635 B1 EP2759635 B1 EP 2759635B1 EP 14000037 A EP14000037 A EP 14000037A EP 2759635 B1 EP2759635 B1 EP 2759635B1
Authority
EP
European Patent Office
Prior art keywords
process air
heat exchanger
drum
additional heat
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14000037.3A
Other languages
German (de)
French (fr)
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EP2759635A3 (en
EP2759635A2 (en
Inventor
Markus Kerschdorfer
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.)
V-Zug AG
Original Assignee
V-Zug AG
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Filing date
Publication date
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Priority to SI201431744T priority Critical patent/SI2759635T1/en
Publication of EP2759635A2 publication Critical patent/EP2759635A2/en
Publication of EP2759635A3 publication Critical patent/EP2759635A3/en
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Publication of EP2759635B1 publication Critical patent/EP2759635B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/32—Temperature
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/30—Blowers
    • 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 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity

Definitions

  • the invention relates to a tumble dryer with a heat pump and additional heat exchanger as defined by the preamble of the first claim and as defined by DE 10 2007013997 disclosed.
  • a tumble dryer with a heat pump usually has a rotating drum to hold the laundry to be dried.
  • the drum is arranged in a process air circuit.
  • heated process air is passed through the drum, then the air is cooled to remove water, heated again and fed back into the drum.
  • a heat pump circuit is also provided in which a medium is fed back to the condenser through a condenser, a throttle element (expansion valve), an evaporator and a compressor.
  • the process air is cooled with the evaporator in order to remove its water, and with the condenser it is then reheated.
  • CH 699 018 describes a tumble dryer in whose process air circuit an additional heat exchanger is arranged in order to extract heat from the system.
  • the drum has a horizontal axis of rotation, and the process air passes through the drum from back to front.
  • the additional heat exchanger is an air-to-air heat exchanger that is designed to dissipate process air heat to the ambient air.
  • CH 701 466 describes a tumble dryer with a drying air circuit and a heat pump circuit.
  • the dry air is dehumidified at the heat pump's evaporator and heated again at the condenser.
  • the air conveying means two different volume flows can be set in the dry air circuit.
  • the object is to further develop a tumble dryer of the type described above in such a way that the drying time can be reduced.
  • an additional heater is arranged in the process air circuit, with which the process air can be heated.
  • the device can be heated up more quickly at the beginning of the process and / or at least part of the process can be carried out at a higher temperature.
  • the additional heat exchanger In order to be able to dissipate the heat from the additional heating, the additional heat exchanger must be relatively large. The question therefore arises as to how the additional heat exchanger should be accommodated in the device.
  • the additional heat exchanger is attached to the rear of the device.
  • back and front are defined by the direction of the flow of process air in the drum. Specifically, the process air runs axially through the drum (ie parallel to the horizontal axis of rotation) from its rear to its front, ie the air enters primarily from the rear and the air exits primarily towards the front of the drum.
  • Designations of the type “above”, “below”, “above”, “below” refer to the intended mounting orientation of the device.
  • a component A is arranged “below” (or “above") a component B, this is to be understood as meaning that at least part of the component A is located vertically below (or above) the component B.
  • the tumble dryer after Fig. 1 has a drum 1 for receiving the laundry to be dried.
  • a process air circuit is provided (which in Fig. 1 is shown with solid lines), in which heated process air is passed through the drum 1, then cooled and then heated again and fed back into the drum 1.
  • an additional electrical heater 9 is provided which allows the process air to be supplied with heat in a targeted manner, e.g. when starting the device, or it can be used to generally raise the temperature level in the process air circuit.
  • the fan 10 is used to pump the process air.
  • a heat pump circuit is also provided (the path of the medium conveyed by the heat pump circuit in Fig. 1 shown with dotted lines).
  • the medium is conveyed from a compressor 2 to a condenser 3, then via a throttle element 5, for example in the form of a capillary or an expansion valve, to an evaporator 6 and then back to the compressor 2.
  • the evaporator 6 is used to cool the process air and To withdraw water from her in this way, while the condenser 3 serves to heat the process air again so that it can absorb new water.
  • an additional heat exchanger 4 is provided in the process air circuit. As mentioned at the beginning, it is used to extract heat from the process air circuit. In particular, it should dissipate the heating power of the auxiliary heater 9 and the power loss of the heat pump. It is preferably arranged between the drum 1 and the evaporator 6, since there it can also withdraw water from the air at the same time.
  • the additional heat exchanger 4 is an air-to-air heat exchanger through which the process air flows on the one hand and ambient air on the other, the process air and the ambient air preferably being locally separated and not able to mix.
  • a fan 7 is also provided with which the ambient air is guided through the additional heat exchanger 4 in order to cool it.
  • the heat output extracted from the process air circuit by the additional heat exchanger 4 is determined by the speed of the fan 7.
  • This speed is determined by a controller 8 of the device, specifically as a function of at least one temperature in the heat pump circuit and / or process air circuit.
  • a temperature sensor 11 is arranged in the heat pump circuit.
  • the control is designed to control the speed of the fan 7 as a function of the signal from the temperature sensor 11, e.g. by operating the fan 7 with greater power as the temperature rises.
  • the fan can only be switched on when the temperature exceeds a predetermined threshold value.
  • the speed of the fan 7 is increased by the controller 8 continuously or at least in several steps as the temperature increases.
  • the temperature-dependent control of the fan 7 allows energy to be supplied to the process air circuit very quickly, for example when the tumble dryer is started up, so that the process temperature is reached quickly, after which overheating of the heat pump circuit is prevented in normal operation.
  • the temperature of the medium running in the heat pump circuit is preferably determined where this temperature corresponds approximately to the condensation temperature of the medium. This is the case between the capacitor 3 and the throttle element 5, or on the output side of the capacitor 3 or on the input side of the throttle element 5.
  • FIG. 2 A first arrangement is in Fig. 2 shown.
  • the approximately cuboid housing 14 of the device can be seen, which has a front 15, a rear 16, vertical side surfaces 17 perpendicular thereto, a top 18 and a bottom 19.
  • the drum 1 is arranged with its horizontal axis of rotation 20 in the housing 14.
  • the axis of rotation 20 is perpendicular to the front and rear sides 15 and 16, respectively.
  • the components of the heat pump and in particular the evaporator 6 and the condenser 3 and the compressor 2, are arranged below the drum 1 in the device base.
  • the additional heat exchanger 4 is also located below the drum 1 in the device base. The arrangement of these heavy components below the drum 1 leads to a stable stand of the device.
  • the additional heat exchanger 4 is located below the evaporator 6 and the condenser 3. In this position it is easily accessible for cleaning.
  • the fan 10 and the auxiliary heater 9 are located on the rear side 16 of the device, and a riser duct 21 is provided in which the process air from the fan 10 and the auxiliary heater 9 is guided to the rear of the drum 1.
  • the process air flows through the drum 1 from the rear 16 to the front 15 and runs approximately parallel to the axis of rotation 20.
  • the air then enters a channel in the door (not shown), and is then passed down the front side to the additional heat exchanger 4.
  • the process air is then passed in the direction from the front 15 to the rear 16 through the additional heat exchanger 4. From there, the process air is then fed into a channel 22 again towards the front 15 to the evaporator 6.
  • the ambient air from the fan 7 conveyed horizontally and transversely to the flow direction of the process air through the additional heat exchanger 4, ie the ambient air is guided from one side surface 17 to the other.
  • Fig. 3 shows a second possible arrangement, which differs from that according to FIG Fig. 2 distinguished by the fact that the evaporator 6 and the condenser 3 are now arranged lower than the additional heat exchanger 4.
  • the additional heat exchanger 4 is located below the drum 1, between the drum 1 and the evaporator 6 and the condenser 3.
  • FIG Fig. 4 Another arrangement in which the additional heat exchanger 4 is located below the drum 1 is shown in FIG Fig. 4 shown.
  • the additional heat exchanger 4 is arranged horizontally next to the evaporator 6 and the condenser 3.
  • the process air on the front 15 of the device is led down to the additional heat exchanger. It runs through the additional heat exchanger 4 in the direction from the front 15 to the rear 16 and is then guided back in the channel 22 back to the front and to the evaporator 6.
  • the arrangement of the additional heat exchanger 4 horizontally next to the evaporator 6 and condenser 3 in turn results in good thermal decoupling, in that warm air rising from the condenser 3 and the additional heat exchanger 4 does not impair the cooling in the area of the evaporator 6.
  • the additional heat exchanger can be located either to the left or to the right of the evaporator and condenser.
  • the additional heat exchanger 4 is arranged above the drum 1 in the area of the top 18 of the device. This arrangement allows the drum 1 to be arranged lower, which is advantageous, for example, when the device is arranged in a tower above a washing machine.
  • the process air from the drum 1 is guided upwards along the front 15, enters the additional heat exchanger 4 from the front and passes through it in the direction of the rear 16.
  • the process air then enters a first channel 26 on the rear 16 of the device, in which it is passed down from the additional heat exchanger 4.
  • the first channel 26 can be arranged inside the device (ie in front of the rear wall) or outside the device (ie behind the rear wall), as shown in FIG Fig. 5 is indicated by means of a dashed variant 26 '.
  • the first channel 26 goes below the drum 1 in a second channel 27, in which the process air is led to the front 15 of the device and to the inlet of the evaporator 6.
  • the process air from the drum 1 is first guided upwards and then in a first air duct 28 towards the rear and into the additional heat exchanger 4. It runs through the additional heat exchanger 4 towards the front side 15 and then enters a second air duct 29 which is arranged on the front side 15 of the tumble dryer. In the second air duct 29, the process air from the additional heat exchanger 4 is guided downwards around the evaporator 6.
  • the first air duct 28 runs in the cavity between the drum 1 and an upper edge of the clothes dryer.
  • the additional heat exchanger 4 is arranged on the rear side 16 of the tumble dryer.
  • the process air emerging from the front of the drum 1 is introduced through a first channel 30, which runs in the cavity between the drum 1 and an upper edge of the tumble dryer, toward the rear into the upper end of the additional heat exchanger 4.
  • the air is then passed from top to bottom through the additional heat exchanger 4 and then enters a second channel 31 through which it arrives at the front 15 of the device and then enters the evaporator 6.
  • a tumble dryer which has a drum 1 with a horizontal axis of rotation 20 and a heat pump with an evaporator 6 and a condenser 4.
  • the process air exits the drum 1 against the front 1 of the device (in the case of front loading devices usually in a channel running through the door) and is routed downwards, for example, in order to then enter the additional heat exchanger 4.
  • the additional heat exchanger 4 is an air-to-air heat exchanger in which the process air is cooled.
  • the process air exits the additional heat exchanger 4 to the rear and is then fed to the front of the device and there to the evaporator 6.
  • the air then returns to the drum 1 through the condenser 3, a fan 10 and an additional heater 9.
  • the additional heat exchanger 4 is advantageously arranged below the drum 1.
  • the arrangement variants described are characterized by a very compact structure.

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

Description

Gebiet der ErfindungField of invention

Die Erfindung betrifft einen Wäschetrockner mit Wärmepumpe und Zusatzwärmetauscher, wie vom Oberbegriff des ersten Anspruchs definiert, und wie von DE 10 2007013997 offenbart.The invention relates to a tumble dryer with a heat pump and additional heat exchanger as defined by the preamble of the first claim and as defined by DE 10 2007013997 disclosed.

Hintergrundbackground

Ein Wäschetrockner mit Wärmepumpe besitzt in der Regel eine sich drehende Trommel zur Aufnahme der zu trocknenden Wäsche. Die Trommel ist in einem Prozessluftkreislauf angeordnet. Im Prozessluftkreislauf wird erwärmte Prozessluft durch die Trommel geführt, dann wird die Luft zum Wasserentzug abgekühlt, wieder aufgeheizt und in die Trommel zurückgeführt. Weiter ist ein Wärmepumpenkreislauf vorgesehen, in welchem ein Medium durch einen Kondensator, ein Drosselorgan (Expansionsventil), einen Verdampfer und einen Kompressor zurück zum Kondensator geführt wird. Mit dem Verdampfer wird die Prozessluft gekühlt, um ihr Wasser zu entziehen, und mit dem Kondensator wird sie sodann wieder erwärmt.A tumble dryer with a heat pump usually has a rotating drum to hold the laundry to be dried. The drum is arranged in a process air circuit. In the process air circuit, heated process air is passed through the drum, then the air is cooled to remove water, heated again and fed back into the drum. A heat pump circuit is also provided in which a medium is fed back to the condenser through a condenser, a throttle element (expansion valve), an evaporator and a compressor. The process air is cooled with the evaporator in order to remove its water, and with the condenser it is then reheated.

In CH 699 018 wird ein Wäschetrockner beschrieben, in dessen Prozessluftkreislauf ein Zusatzwärmetauscher angeordnet ist, um dem System Wärme zu entziehen. Die Trommel besitzt eine horizontale Drehachse, und die Prozessluft durchsetzt die Trommel von hinten nach vorne. Beim Zusatzwärmetauscher handelt es sich um einen Luft-Luft-Wärmetauscher, der dazu ausgestaltet ist, Prozessluftwärme an die Umgebungsluft abzuführen.In CH 699 018 describes a tumble dryer in whose process air circuit an additional heat exchanger is arranged in order to extract heat from the system. The drum has a horizontal axis of rotation, and the process air passes through the drum from back to front. The additional heat exchanger is an air-to-air heat exchanger that is designed to dissipate process air heat to the ambient air.

In CH 701 466 wird ein Wäschetrockner mit einem Trockenluftkreislauf und einem Wärmepumpenkreislauf beschrieben. Die Trockenluft wird am Verdampfer der Wärmepumpe entfeuchtet und am Kondensator wieder erwärmt. Mit den Luftfördermitteln können zwei unterschiedliche Volumenströme im Trockenluftkreislauf eingestellt werden.In CH 701 466 describes a tumble dryer with a drying air circuit and a heat pump circuit. The dry air is dehumidified at the heat pump's evaporator and heated again at the condenser. With the air conveying means, two different volume flows can be set in the dry air circuit.

Darstellung der ErfindungPresentation of the invention

Es stellt sich die Aufgabe, einen Wäschetrockner der oben beschriebenen Art dahingehend weiterzuentwickeln, dass die Trockenzeit reduziert werden kann.The object is to further develop a tumble dryer of the type described above in such a way that the drying time can be reduced.

Diese Aufgabe wird vom Wäschetrockner gemäss Anspruch 1 gelöst. Demgemäss ist im Prozessluftkreislauf zusätzlich zum Kondensator eine Zusatzheizung angeordnet ist, mit welcher die Prozessluft erwärmt werden kann. Mit einer solchen Zusatzheizung kann zu Beginn des Prozesses das Gerät schneller aufgeheizt werden, und/oder mindestens ein Teil des Prozesses kann bei höherer Temperatur durchgeführt werden.This object is achieved by the clothes dryer according to claim 1. Accordingly, in addition to the condenser, an additional heater is arranged in the process air circuit, with which the process air can be heated. With such an additional heater, the device can be heated up more quickly at the beginning of the process and / or at least part of the process can be carried out at a higher temperature.

Um die Wärme der Zusatzheizung abführen zu können, muss der Zusatzwärmetauscher relativ gross sein. Deshalb stellt sich die Frage, wie der Zusatzwärmetauscher im Gerät untergebracht werden soll.In order to be able to dissipate the heat from the additional heating, the additional heat exchanger must be relatively large. The question therefore arises as to how the additional heat exchanger should be accommodated in the device.

Der Zusatzwärmetauscher wird an der Rückseite des Geräts angebracht.The additional heat exchanger is attached to the rear of the device.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Weitere Ausgestaltungen, Vorteile und Anwendungen der Erfindung, und insbesondere verschiedene, besonders raumsparende Möglichkeiten zur Anordnung der Komponenten des Geräts, ergeben sich aus den abhängigen Ansprüchen und aus der nun folgenden Beschreibung anhand der Figuren. Dabei zeigen:

  • Fig. 1 ein Blockdiagramm der wichtigsten Komponenten des Wäschetrockners,
  • Fig. 2 eine erste Anordnung der Komponenten im Wäschetrockner (nicht beansprucht),
  • Fig. 3 eine zweite Anordnung der Komponenten im Wäschetrockner (nicht beansprucht),
  • Fig. 4 eine dritte Anordnung der Komponenten im Wäschetrockner (nicht beansprucht),
  • Fig. 5 eine vierte Anordnung der Komponenten im Wäschetrockner (nicht beansprucht),
  • Fig. 6 eine fünfte Anordnung der Komponenten im Wäschetrockner (nicht beansprucht) und
  • Fig. 7 eine sechste Anordnung der Komponenten im Wäschetrockner.
Further refinements, advantages and applications of the invention, and in particular various, particularly space-saving options for arranging the components of the device, emerge from the dependent claims and from the description that follows with reference to the figures. Show:
  • Fig. 1 a block diagram of the main components of the tumble dryer,
  • Fig. 2 a first arrangement of the components in the tumble dryer (not claimed),
  • Fig. 3 a second arrangement of the components in the tumble dryer (not claimed),
  • Fig. 4 a third arrangement of the components in the tumble dryer (not claimed),
  • Fig. 5 a fourth arrangement of the components in the tumble dryer (not claimed),
  • Fig. 6 a fifth arrangement of the components in the tumble dryer (not claimed) and
  • Fig. 7 a sixth arrangement of the components in the tumble dryer.

Wege zur Ausführung der ErfindungWays of Carrying Out the Invention Definitionen:Definitions:

Die Bezeichnungen "Rückseite" und "Vorderseite" werden durch die Richtung des Stroms der Prozessluft in der Trommel definiert. Namentlich durchläuft die Prozessluft die Trommel achsial (d.h. parallel zur horizontalen Drehachse) von deren Rückseite zu deren Vorderseite, d.h. der Lufteintritt erfolgt primär von der Rückseite her und der Luftaustritt erfolgt primär gegen die Vorderseite der Trommel hin.The terms "back" and "front" are defined by the direction of the flow of process air in the drum. Specifically, the process air runs axially through the drum (ie parallel to the horizontal axis of rotation) from its rear to its front, ie the air enters primarily from the rear and the air exits primarily towards the front of the drum.

Bezeichnungen der Art "oberhalb", "unterhalb", "über", "unter" beziehen sich auf die bestimmungsgemässe Montageorientierung des Geräts. Wenn gesagt wird, dass ein Bauteil A "unterhalb" (bzw. "oberhalb" eines Bauteils B angeordnet ist, so ist darunter zu verstehen, dass sich mindestens ein Teil des Bauteils A vertikal unterhalb (bzw. oberhalb) des Bauteils B befindet.Designations of the type "above", "below", "above", "below" refer to the intended mounting orientation of the device. When it is said that a component A is arranged "below" (or "above") a component B, this is to be understood as meaning that at least part of the component A is located vertically below (or above) the component B.

Grundaufbau:Basic structure:

Der Wäschetrockner nach Fig. 1 besitzt eine Trommel 1 zur Aufnahme der zu trocknenden Wäsche. Es ist ein Prozessluftkreislauf vorgesehen (welcher in Fig. 1 mit durchgezogenen Linien dargestellt ist), in welchem erwärmte Prozessluft durch die Trommel 1 geleitet, sodann abgekühlt und danach wieder aufgeheizt und zurück in die Trommel 1 geführt wird.The tumble dryer after Fig. 1 has a drum 1 for receiving the laundry to be dried. A process air circuit is provided (which in Fig. 1 is shown with solid lines), in which heated process air is passed through the drum 1, then cooled and then heated again and fed back into the drum 1.

Im Prozessluftkreislauf, insbesondere zwischen dem Gebläse 10 und der Trommel 1, ist eine elektrische Zusatzheizung 9 vorgesehen, welche es erlaubt, der Prozessluft gezielt Wärme zuzuführen, z.B. beim Starten des Geräts, oder sie kann verwendet werden, um das Temperaturniveau im Prozessluftkreislauf allgemein anzuheben. Das Gebläse 10 dient zum Umpumpen der Prozessluft.In the process air circuit, in particular between the fan 10 and the drum 1, an additional electrical heater 9 is provided which allows the process air to be supplied with heat in a targeted manner, e.g. when starting the device, or it can be used to generally raise the temperature level in the process air circuit. The fan 10 is used to pump the process air.

Weiter ist ein Wärmepumpenkreislauf vorgesehen (wobei der Pfad des vom Wärmepumpenkreislauf geförderten Mediums in Fig. 1 mit gepunkteten Linien dargestellt ist). Das Medium wird von einem Kompressor 2 zu einem Kondensator 3 gefördert, dann über ein Drosselorgan 5, z.B. in Form einer Kapillaren oder eines Expansionsventils, zu einem Verdampfer 6 und dann wieder zurück zum Kompressor 2. Der Verdampfer 6 dient dazu, die Prozessluft abzukühlen und ihr auf diese Weise Wasser zu entziehen, während der Kondensator 3 dazu dient, die Prozessluft wieder zu erwärmen, so dass sie neues Wasser aufnehmen kann.A heat pump circuit is also provided (the path of the medium conveyed by the heat pump circuit in Fig. 1 shown with dotted lines). The medium is conveyed from a compressor 2 to a condenser 3, then via a throttle element 5, for example in the form of a capillary or an expansion valve, to an evaporator 6 and then back to the compressor 2. The evaporator 6 is used to cool the process air and To withdraw water from her in this way, while the condenser 3 serves to heat the process air again so that it can absorb new water.

Wie aus Fig. 1 weiter ersichtlich, ist im Prozessluftkreislauf ein Zusatzwärmetauscher 4 vorgesehen. Wie eingangs erwähnt, dient er dazu, dem Prozessluftkreislauf Wärme zu entziehen. Insbesondere soll er die Heizleistung der Zusatzheizung 9 und die Verlustleistung der Wärmepumpe abführen. Vorzugsweise ist er zwischen der Trommel 1 und dem Verdampfer 6 angeordnet, da er dort der Luft gleichzeitig auch Wasser entziehen kann.How out Fig. 1 It can also be seen that an additional heat exchanger 4 is provided in the process air circuit. As mentioned at the beginning, it is used to extract heat from the process air circuit. In particular, it should dissipate the heating power of the auxiliary heater 9 and the power loss of the heat pump. It is preferably arranged between the drum 1 and the evaporator 6, since there it can also withdraw water from the air at the same time.

Der Zusatzwärmetauscher 4 ist ein Luft-Luft-Wärmetauscher, der einerseits von der Prozessluft und andererseits von Umgebungsluft durchströmt wird, wobei die Prozessluft und die Umgebungsluft vorzugsweise örtlich getrennt sind und sich nicht vermischen können. Es ist weiter ein Gebläse 7 vorgesehen, mit welchem die Umgebungsluft durch den Zusatzwärmetauscher 4 geführt wird, um diesen zu kühlen.The additional heat exchanger 4 is an air-to-air heat exchanger through which the process air flows on the one hand and ambient air on the other, the process air and the ambient air preferably being locally separated and not able to mix. A fan 7 is also provided with which the ambient air is guided through the additional heat exchanger 4 in order to cool it.

Die vom Zusatzwärmetauscher 4 dem Prozessluftkreislauf entzogene Wärmeleistung wird über die Drehzahl des Gebläses 7 festgelegt. Diese Drehzahl wird von einer Steuerung 8 des Geräts bestimmt, und zwar abhängig von mindestens einer Temperatur im Wärmepumpenkreislauf und/oder Prozessluftkreislauf. Hierzu ist im Wärmepumpenkreislauf ein Temperatursensor 11 angeordnet. Die Steuerung ist dazu ausgestaltet, die Drehzahl des Gebläses 7 abhängig vom Signal des Temperatursensors 11 zu steuern, z.B. indem das Gebläse 7 mit grösserer Leistung betrieben wird, wenn die Temperatur ansteigt. Beispielsweise kann das Gebläse erst dann eingeschaltet werden, wenn die Temperatur einen vorgegebenen Schwellwert überschreitet. Vorzugsweise wird jedoch die Drehzahl des Gebläses 7 von der Steuerung 8 bei zunehmender Temperatur kontinuierlich oder zumindest in mehreren Schritten erhöht.The heat output extracted from the process air circuit by the additional heat exchanger 4 is determined by the speed of the fan 7. This speed is determined by a controller 8 of the device, specifically as a function of at least one temperature in the heat pump circuit and / or process air circuit. For this purpose, a temperature sensor 11 is arranged in the heat pump circuit. The control is designed to control the speed of the fan 7 as a function of the signal from the temperature sensor 11, e.g. by operating the fan 7 with greater power as the temperature rises. For example, the fan can only be switched on when the temperature exceeds a predetermined threshold value. Preferably, however, the speed of the fan 7 is increased by the controller 8 continuously or at least in several steps as the temperature increases.

Die temperaturabhängige Ansteuerung des Gebläses 7 erlaubt es, z.B. beim Anfahren des Wäschetrockners dem Prozessluftkreislauf sehr schnell Energie zuzuführen, so dass die Prozesstemperatur rasch erreicht wird, wonach aber im Normalbetrieb ein Überhitzen des Wärmepumpenkreislaufs verhindert wird.The temperature-dependent control of the fan 7 allows energy to be supplied to the process air circuit very quickly, for example when the tumble dryer is started up, so that the process temperature is reached quickly, after which overheating of the heat pump circuit is prevented in normal operation.

Vorzugsweise wird die Temperatur des im Wärmepumpenkreislauf laufenden Mediums dort ermittelt, wo diese Temperatur ungefähr der Kondensationstemperatur des Mediums entspricht. Dies ist zwischen Kondensator 3 und Drosselorgan 5 der Fall, oder ausgangsseitig des Kondensators 3 oder eingangsseitig des Drosselorgans 5.The temperature of the medium running in the heat pump circuit is preferably determined where this temperature corresponds approximately to the condensation temperature of the medium. This is the case between the capacitor 3 and the throttle element 5, or on the output side of the capacitor 3 or on the input side of the throttle element 5.

Anordnung der Komponenten:Arrangement of the components:

Im Folgenden werden einige vorteilhafte Anordnungen der Komponenten im Gerät anhand von verschiedenen Ausführungsbespielen gezeigt.In the following, some advantageous arrangements of the components in the device are shown on the basis of various exemplary embodiments.

Eine erste Anordnung ist in Fig. 2 dargestellt. Ersichtlich ist das ungefähr quaderförmige Gehäuse 14 des Geräts, welches eine Vorderseite 15, eine Rückseite 16, senkrecht dazu stehende vertikale Seitenflächen 17, eine Oberseite 18 und einen Boden 19 besitzt. Im Gehäuse 14 ist die Trommel 1 mit ihrer horizontalen Drehachse 20 angeordnet. Die Drehachse 20 steht senkrecht zu Vorder- und Rückseite 15 bzw. 16.A first arrangement is in Fig. 2 shown. The approximately cuboid housing 14 of the device can be seen, which has a front 15, a rear 16, vertical side surfaces 17 perpendicular thereto, a top 18 and a bottom 19. The drum 1 is arranged with its horizontal axis of rotation 20 in the housing 14. The axis of rotation 20 is perpendicular to the front and rear sides 15 and 16, respectively.

In der Ausführung nach Fig. 2 sind die Komponenten der Wärmepumpe, und insbesondere der Verdampfer 6 und der Kondensator 3 sowie der Kompressor 2 unterhalb der Trommel 1 im Gerätesockel angeordnet. Auch der Zusatzwärmetauscher 4 befindet sich unterhalb der Trommel 1 im Gerätesockel. Die Anordnung dieser schweren Komponenten unterhalb der Trommel 1 führt zu einem stabilen Stand des Geräts.In the execution according to Fig. 2 the components of the heat pump, and in particular the evaporator 6 and the condenser 3 and the compressor 2, are arranged below the drum 1 in the device base. The additional heat exchanger 4 is also located below the drum 1 in the device base. The arrangement of these heavy components below the drum 1 leads to a stable stand of the device.

In der dargestellten Ausführung befindet sich der Zusatzwärmetauscher 4 unterhalb des Verdampfers 6 und des Kondensators 3. In dieser Position ist er für eine Reinigung gut zugänglich.In the embodiment shown, the additional heat exchanger 4 is located below the evaporator 6 and the condenser 3. In this position it is easily accessible for cleaning.

An der Rückseite 16 des Geräts befinden sich das Gebläse 10 und die Zusatzheizung 9 und es ist ein Steigkanal 21 vorgesehen, in welchem die Prozessluft vom Gebläse 10 und der Zusatzheizung 9 zur Rückseite der Trommel 1 geführt wird.The fan 10 and the auxiliary heater 9 are located on the rear side 16 of the device, and a riser duct 21 is provided in which the process air from the fan 10 and the auxiliary heater 9 is guided to the rear of the drum 1.

Wie mit den Pfeilen angedeutet, durchströmt die Prozessluft die Trommel 1 von der Rückseite 16 zur Vorderseite 15 und läuft dabei ungefähr parallel zur Drehachse 20. Bei einem Gerät mit Fronttüre tritt die Luft sodann in einen Kanal in der Türe ein (nicht gezeigt), und wird dann der Vorderseite entlang nach unten zum Zusatzwärmetauscher 4 geführt. Sodann wird die Prozessluft in Richtung von der Vorderseite 15 zur Rückseite 16 hin durch den Zusatzwärmetauscher 4 geleitet. Von dort wird die Prozessluft sodann in einen Kanal 22 wieder gegen die Vorderseite 15 zum Verdampfer 6 geführt.As indicated by the arrows, the process air flows through the drum 1 from the rear 16 to the front 15 and runs approximately parallel to the axis of rotation 20. In a device with a front door, the air then enters a channel in the door (not shown), and is then passed down the front side to the additional heat exchanger 4. The process air is then passed in the direction from the front 15 to the rear 16 through the additional heat exchanger 4. From there, the process air is then fed into a channel 22 again towards the front 15 to the evaporator 6.

Nun durchläuft die Prozessluft von der Vorderseite 15 zur Rückseite 16 hin zuerst den Verdampfer 6 und sodann den Kondensator 3, von wo sie wieder zum Gebläse 10 an der Rückseite 16 gelangt.The process air now runs from the front 15 to the rear 16 first through the evaporator 6 and then through the condenser 3, from where it again reaches the fan 10 on the rear 16.

Wie weiter durch einen Pfeil 24 in Fig. 2 angedeutet, wird die Umgebungsluft vom Gebläse 7 (in Fig. 2 nicht dargestellt) horizontal und quer zur Strömungsrichtung der Prozessluft durch den Zusatzwärmetauscher 4 gefördert, d.h. die Umgebungsluft wird von der einen Seitenfläche 17 zur anderen geführt.As further indicated by an arrow 24 in Fig. 2 indicated, the ambient air from the fan 7 (in Fig. 2 not shown) conveyed horizontally and transversely to the flow direction of the process air through the additional heat exchanger 4, ie the ambient air is guided from one side surface 17 to the other.

Fig. 3 zeigt eine zweite mögliche Anordnung, welche sich von jener gemäss Fig. 2 dadurch unterschiedet, dass der Verdampfer 6 und der Kondensator 3 nun tiefer als der Zusatzwärmetauscher 4 angeordnet sind. Der Zusatzwärmetauscher 4 befindet sich unterhalb der Trommel 1, zwischen der Trommel 1 und dem Verdampfer 6 und dem Kondensator 3. Fig. 3 shows a second possible arrangement, which differs from that according to FIG Fig. 2 distinguished by the fact that the evaporator 6 and the condenser 3 are now arranged lower than the additional heat exchanger 4. The additional heat exchanger 4 is located below the drum 1, between the drum 1 and the evaporator 6 and the condenser 3.

Da der Zusatzwärmetauscher 4 relativ warm ist, hat die Anordnung gemäss Fig. 3 gegenüber jener von Fig. 2 den Vorteil, dass die vom Zusatzwärmetauscher 4 aufsteigende Wärme die Funktion des Verdampfers 6 nicht beeinträchtigt.Since the additional heat exchanger 4 is relatively warm, the arrangement according to FIG Fig. 3 compared to that of Fig. 2 the advantage that the heat rising from the additional heat exchanger 4 does not impair the function of the evaporator 6.

In der Ausführung nach Fig. 3 tritt die Prozessluft wiederum von der Vorderseite in den Zusatzwärmetauscher 4 ein, verlässt diesen zur Rückseite hin, wird vom Kanal 22 zur Vorderseite des Verdampfers geführt und durchläuft auf ihrem Weg zum Gebläse 10 zuvor noch den Kondensator 3.In the execution according to Fig. 3 the process air enters the additional heat exchanger 4 from the front, leaves it to the rear, is guided from the channel 22 to the front of the evaporator and passes through the condenser 3 on its way to the blower 10.

Eine weitere Anordnung, bei welcher sich der Zusatzwärmetauscher 4 unterhalb der Trommel 1 befindet, ist in Fig. 4 dargestellt. In dieser Ausführung ist der Zusatzwärmetauscher 4 horizontal neben dem Verdampfer 6 und dem Kondensator 3 angeordnet. Wie in den Ausführungen nach Fig. 2 und 3 wird hier die Prozessluft an der Vorderseite 15 des Geräts nach unten zum Zusatzwärmetauscher geführt. Sie durchläuft den Zusatzwärmetauscher 4 in Richtung von der Vorderseite 15 zur Rückseite 16 und wird sodann wieder im Kanal 22 zurück zur Vorderseite und zum Verdampfer 6 geführt.Another arrangement in which the additional heat exchanger 4 is located below the drum 1 is shown in FIG Fig. 4 shown. In this embodiment, the additional heat exchanger 4 is arranged horizontally next to the evaporator 6 and the condenser 3. As in the remarks after Figs. 2 and 3 Here the process air on the front 15 of the device is led down to the additional heat exchanger. It runs through the additional heat exchanger 4 in the direction from the front 15 to the rear 16 and is then guided back in the channel 22 back to the front and to the evaporator 6.

Die Anordnung des Zusatzwärmetauschers 4 horizontal neben Verdampfer 6 und Kondensator 3 ergibt wiederum eine gute thermische Entkopplung, indem von Kondensator 3 und Zusatzwärmetauscher 4 aufsteigende Warmluft die Kühlung im Bereich des Verdampfers 6 nicht beeinträchtigt. Der Zusatzwärmetauscher kann sowohl links als auch rechts von Verdampfer und Kondensator liegen.The arrangement of the additional heat exchanger 4 horizontally next to the evaporator 6 and condenser 3 in turn results in good thermal decoupling, in that warm air rising from the condenser 3 and the additional heat exchanger 4 does not impair the cooling in the area of the evaporator 6. The additional heat exchanger can be located either to the left or to the right of the evaporator and condenser.

In der Ausführung nach Fig. 5 ist der Zusatzwärmetaucher 4 oberhalb der Trommel 1 im Bereich der Oberseite 18 des Geräts angeordnet. Diese Anordnung erlaubt es, die Trommel 1 tiefer anzuordnen, was z.B. bei der Anordnung des Geräts in einem Turm über einer Waschmaschine von Vorteil ist.In the execution according to Fig. 5 the additional heat exchanger 4 is arranged above the drum 1 in the area of the top 18 of the device. This arrangement allows the drum 1 to be arranged lower, which is advantageous, for example, when the device is arranged in a tower above a washing machine.

Die Prozessluft von der Trommel 1 wird der Vorderseite 15 entlang nach oben geführt, tritt von der Vorderseite her in den Zusatzwärmetauscher 4 ein und durchläuft diesen in Richtung der Rückseite 16. Sodann tritt die Prozessluft in einen ersten Kanal 26 an der Rückseite 16 des Geräts, in welchem sie vom Zusatzwärmetauscher 4 nach unten geführt wird. Der erste Kanal 26 kann innerhalb des Geräts (d.h. vor der Rückwand) oder ausserhalb des Geräts (d.h. hinter der Rückwand) angeordnet sein, wie dies in Fig. 5 mittels einer gestrichelten Variante 26' angedeutet wird. Der erste Kanal 26 geht unterhalb der Trommel 1 in einem zweiten Kanal 27 über, in welchem die Prozessluft zur Vorderseite 15 des Geräts und zum Eingang des Verdampfers 6 geführt wird.The process air from the drum 1 is guided upwards along the front 15, enters the additional heat exchanger 4 from the front and passes through it in the direction of the rear 16. The process air then enters a first channel 26 on the rear 16 of the device, in which it is passed down from the additional heat exchanger 4. The first channel 26 can be arranged inside the device (ie in front of the rear wall) or outside the device (ie behind the rear wall), as shown in FIG Fig. 5 is indicated by means of a dashed variant 26 '. The first channel 26 goes below the drum 1 in a second channel 27, in which the process air is led to the front 15 of the device and to the inlet of the evaporator 6.

In der Ausführung nach Fig. 6 ist der Zusatzwärmetauscher 4 ebenfalls oberhalb der Trommel 1 angeordnet, der Weg der Prozessluft ist jedoch etwas kürzer als bei der Ausführung nach Fig. 5.In the execution according to Fig. 6 the additional heat exchanger 4 is also arranged above the drum 1, but the path of the process air is somewhat shorter than in the embodiment according to Fig. 5 .

Die Prozessluft aus der Trommel 1 wird zunächst nach oben und sodann in einem ersten Luftkanal 28 gegen die Rückseite hin und in den Zusatzwärmetauscher 4 geführt. Sie durchläuft den Zusatzwärmetauscher 4 gegen die Vorderseite 15 hin und tritt sodann in einen zweiten Luftkanal 29 ein, der an der Vorderseite 15 des Wäschetrockners angeordnet ist. Im zweiten Luftkanal 29 wird die Prozessluft vom Zusatzwärmetauscher 4 nach unten um Verdampfer 6 geführt.The process air from the drum 1 is first guided upwards and then in a first air duct 28 towards the rear and into the additional heat exchanger 4. It runs through the additional heat exchanger 4 towards the front side 15 and then enters a second air duct 29 which is arranged on the front side 15 of the tumble dryer. In the second air duct 29, the process air from the additional heat exchanger 4 is guided downwards around the evaporator 6.

Der erste Luftkanal 28 verläuft im Hohlraum zwischen der Trommel 1 und einer oberen Kante des Wäschetrockners.The first air duct 28 runs in the cavity between the drum 1 and an upper edge of the clothes dryer.

In der Ausführung nach Fig. 7 ist der Zusatzwärmetauscher 4 an der Rückseite 16 des Wäschetrockners angeordnet.In the execution according to Fig. 7 the additional heat exchanger 4 is arranged on the rear side 16 of the tumble dryer.

Die aus der Vorderseite der Trommel 1 austretende Prozessluft wird durch einen ersten Kanal 30, der im Hohlraum zwischen der Trommel 1 und einer oberen Kante des Wäschetrockners verläuft, gegen die Rückseite hin in das obere Ende des Zusatzwärmetauschers 4 eingeführt. Sodann wird die Luft von oben gegen unten durch den Zusatzwärmetauscher 4 geleitet und tritt sodann in einen zweiten Kanal 31 ein, durch welchen sie zur Vorderseite 15 des Gerät gelangt und danach in den Verdampfer 6 eintritt.The process air emerging from the front of the drum 1 is introduced through a first channel 30, which runs in the cavity between the drum 1 and an upper edge of the tumble dryer, toward the rear into the upper end of the additional heat exchanger 4. The air is then passed from top to bottom through the additional heat exchanger 4 and then enters a second channel 31 through which it arrives at the front 15 of the device and then enters the evaporator 6.

Zusammenfassend wird also u.a. ein Wäschetrockner beschrieben, der eine Trommel 1 mit horizontaler Drehachse 20 sowie eine Wärmepumpe mit einem Verdampfer 6 und einem Kondensator 4 besitzt. Die Prozessluft tritt gegen die Vorderseite 1 des Geräts aus der Trommel 1 aus (bei Frontladegeräten üblicherweise in einen durch die Türe verlaufenden Kanal) und wird nach z.B. unten geleitet, um sodann in den Zusatzwärmetauscher 4 einzutreten. Beim Zusatzwärmetauscher 4 handelt es sich um einen Luft-Luft-Wärmetauscher, in welchem die Prozessluft abgekühlt wird. Die Prozessluft tritt nach hinten aus dem Zusatzwärmetauscher 4 aus und wird sodann zur Vorderseite des Geräts und dort zum Verdampfer 6 geführt. Danach gelangt die Luft durch den Kondensator 3, ein Gebläse 10 und eine Zusatzheizung 9 wieder zurück zur Trommel 1. Der Zusatzwärmetauscher 4 wird vorteilhaft unterhalb der Trommel 1 angeordnet. Die beschriebenen Anordnungsvarianten zeichnen sich durch sehr kompakten Aufbau aus.In summary, a tumble dryer is described which has a drum 1 with a horizontal axis of rotation 20 and a heat pump with an evaporator 6 and a condenser 4. The process air exits the drum 1 against the front 1 of the device (in the case of front loading devices usually in a channel running through the door) and is routed downwards, for example, in order to then enter the additional heat exchanger 4. The additional heat exchanger 4 is an air-to-air heat exchanger in which the process air is cooled. The process air exits the additional heat exchanger 4 to the rear and is then fed to the front of the device and there to the evaporator 6. The air then returns to the drum 1 through the condenser 3, a fan 10 and an additional heater 9. The additional heat exchanger 4 is advantageously arranged below the drum 1. The arrangement variants described are characterized by a very compact structure.

Während in der vorliegenden Anmeldung bevorzugte Ausführungen der Erfindung beschrieben sind, ist klar darauf hinzuweisen, dass die Erfindung nicht auf diese beschränkt ist und in auch anderer Weise innerhalb des Umfangs der folgenden Ansprüche ausgeführt werden kann.While preferred embodiments of the invention are described in the present application, it should be clearly pointed out that the invention is not restricted to these and can also be carried out in other ways within the scope of the following claims.

Claims (6)

  1. Laundry dryer with
    a drum (1) with horizontal rotation axis for receiving laundry to be dried,
    a process air circuit for guiding heated process air through the drum (1), for cooling the process air for the purpose of removing water and for reheating the process air, wherein the process air circuit is designed to guide the process air axially through the drum (1) from a rear side (16) to a front side (15),
    a heat pump circuit for guiding a medium through a condenser (3), a throttle element (5), an evaporator (6) and a compressor (2) back to the condenser (3), wherein the process air can be heated by the condenser (3) and the process air can be cooled by the evaporator (6),
    an additional heat exchanger (4) arranged in the process air circuit for extracting heat from the process air circuit, wherein the additional heat exchanger (4) is an air-to-air heat exchanger for dissipating process air heat to the ambient air,
    wherein in the process air circuit, in addition to the condenser (3), an additional heater (9) is arranged with which the process air can be heated,
    characterised in that the additional heat exchanger (4) is arranged on the rear side (16) of the laundry dryer.
  2. Laundry dryer according to claim 1, wherein a fan (7) is associated with the additional heat exchanger (4) in order to guide ambient air horizontally and transversely to a flow direction of the process air through the additional heat exchanger (4).
  3. Laundry dryer according to one of claims 1 or 2, wherein the evaporator (6) and the condenser (3) are arranged below the drum (1) and the process air circuit is designed to guide the process air from top to bottom through the additional heat exchanger (4).
  4. Laundry dryer according to claim 1, wherein a first air duct (28, 30) is provided to guide process air emerging from the drum (1) towards the rear side (16) and into the additional heat exchanger (4).
  5. Laundry dryer according to claim 4, wherein the first air duct (28, 30) extends between the drum (1) and an upper edge of the laundry dryer.
  6. Laundry dryer according to any of the pre-cedings claims, wherein the additional heat exchanger is arranged in the process air circuit between the drum (1) and the evaporator (6).
EP14000037.3A 2013-01-23 2014-01-07 Laundry dryer with additional heating and additional heat exchanger Active EP2759635B1 (en)

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CH00279/13A CH705546A3 (en) 2013-01-23 2013-01-23 Tumble dryer with additional heater and additional heat exchanger.

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Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
KR102063765B1 (en) 2013-06-20 2020-03-02 엘지전자 주식회사 Dryer with a waste heat recovery means
WO2016128849A1 (en) 2015-02-11 2016-08-18 BSH Hausgeräte GmbH Clothes dryer and method for operating a clothes dryer
EP3056603A1 (en) 2015-02-11 2016-08-17 BSH Hausgeräte GmbH Clothes dryer and method for operating a clothes dryer
US20170342646A1 (en) * 2016-05-31 2017-11-30 Wuxi Little Swan Co., Ltd. Clothes dryer or washer-dryer
CN109797530B (en) * 2017-11-17 2022-08-09 青岛胶南海尔洗衣机有限公司 Drying structure and clothes dryer adopting same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699018B9 (en) * 2006-01-27 2010-03-15 V Zug Ag Dryers with carbon dioxide heat pump.
DE102007002181B3 (en) * 2007-01-15 2008-08-21 BSH Bosch und Siemens Hausgeräte GmbH Condensation dryer with a heat pump
DE102007013997A1 (en) * 2007-03-23 2008-09-25 BSH Bosch und Siemens Hausgeräte GmbH Condensation dryer and method of operating a condensation dryer
JP2009006126A (en) * 2007-05-31 2009-01-15 Panasonic Corp Clothes dryer
DE102007027866A1 (en) * 2007-06-18 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Condensation dryer with a heat pump and method for its operation
EP2270274B2 (en) * 2009-06-29 2022-01-12 Electrolux Home Products Corporation N.V. Appliance for drying laundry
CN103201424B (en) * 2010-11-10 2015-12-02 阿塞里克股份有限公司 Thermoelectric heat pump laundry dryer
CH701466B1 (en) * 2010-11-12 2014-04-30 V Zug Ag Tumble dryer with variable air volume flow and method for its operation.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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CH705546A2 (en) 2013-02-28
EP2759635A3 (en) 2015-11-25
SI2759635T1 (en) 2021-02-26
CH705546A3 (en) 2014-03-31
EP2759635A2 (en) 2014-07-30

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