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EP2019162B1 - Wasch- und Trocknungsmaschine - Google Patents

Wasch- und Trocknungsmaschine Download PDF

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Publication number
EP2019162B1
EP2019162B1 EP07425471.5A EP07425471A EP2019162B1 EP 2019162 B1 EP2019162 B1 EP 2019162B1 EP 07425471 A EP07425471 A EP 07425471A EP 2019162 B1 EP2019162 B1 EP 2019162B1
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EP
European Patent Office
Prior art keywords
washer
cooling water
drying
temperature
drier machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP07425471.5A
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English (en)
French (fr)
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EP2019162A1 (de
Inventor
Silvano Fumagalli
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Candy SpA
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Candy SpA
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Publication date
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Priority to EP07425471.5A priority Critical patent/EP2019162B1/de
Publication of EP2019162A1 publication Critical patent/EP2019162A1/de
Application granted granted Critical
Publication of EP2019162B1 publication Critical patent/EP2019162B1/de
Ceased legal-status Critical Current
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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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D06F34/24—Liquid 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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 
    • D06F58/24—Condensing 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
    • D06F2103/30—Pressure
    • 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
    • D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
    • 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
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • 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
    • D06F2105/36—Condensing arrangements, e.g. control of water injection therefor

Definitions

  • the present invention relates to a domestic washer-drier machine which provides for washing and drying the laundry.
  • Domestic washer-drier machines are known to comprise a support and housing structure, a washing tank being housed therein, which is provided with a front opening that can be closed by means of a porthole door that is hinged in front of the housing.
  • a basket is pivotally housed about a horizontal or inclined axis for the laundry to be accommodated therein to be washed and/or dried.
  • the basket also defines a front opening that is located such as to match the opening of the washing tank, in order to load/unload the laundry.
  • the washing tank is suitable to contain the washing liquid during the laundry washing steps, and to be a portion of the drying circuit during the laundry drying step.
  • a washing water delivery system is provided to be connected to the water system.
  • This washing water delivery system comprises a plurality of electrovalves which are suitable to selectively adjust the supply to a plurality of flow paths extending downstream of these electrovalves through respective compartments of a detergent tray to the washing tank.
  • a drain duct with a discharge pump being associated thereto On the bottom of the washing tank there is provided a drain duct with a discharge pump being associated thereto, which provides for the removal of the washing liquid from the tank and controls, together with the supply electrovalves, the liquid level within the tank.
  • an electric resistance is provided, which is arranged within the tank in the gap between the tank wall and the laundry basket.
  • the drying circuit of prior art washer-drier machines typically comprises a suction unit, a heat exchanger and a heating unit with electric resistances intercommunicating by means of a drying circuit.
  • the air flow generated by the suction unit is heated by the electric resistances and sent to the basket, where it flows through the wet laundry thereby causing the water contained in the fabric to evaporate.
  • the heat exchanger which is generally a container separate from the washing tank and provided with a spray nozzle, the wet air is cooled by a jet of cold water. Due to this cooling, the vapour condensates and is collected and discharged together with the cooling water. The de-humidified air is then sucked again by the suction unit and ricirculated.
  • the cooling water is usually supplied to the heat exchanger by means of a cooling duct with a dedicated electrovalve which controls the loading of the mains water in the heat exchanger (condenser).
  • EP1657341 A2 discloses a washer dryer According to the preamble of claim 1.
  • the object of the present invention is thus to provide a washer-drier machine having such characteristics as to reduce the consumption of mains water during the drying step.
  • a further object of the present invention is to simplify the structure of the washer-drier machine and reduce the number of hydraulic components thereof.
  • the washer-drier machine comprises a laundry basket that is supported within a washing tank suitable to contain the washing liquid, in which the washing tank internally defines a condensation space suitable to contain a cooling water volume forming a free water surface spaced away from the basket such as to be capable of cooling the drying air flow downstream of the basket within the washing tank.
  • the whole supply circuit of the condenser can be eliminated, as the latter can be easily supplied with mains water loaded by the washing water loading circuit, since it consists of a free surface of a water volume within the washing tank.
  • the operation of the washer-drier machine is controlled by a program which carries out, during the drying step, the following actions:
  • a washer-drier machine 1 comprises a support and housing structure 2, a washing tank 3 being housed therein, which is provided with a front opening that can be closed by means of a porthole door 4 being hinged in the front of the housing 2.
  • a basket 5 is pivotally housed about a horizontal or inclined axis, for the laundry to be accommodated therein to be washed and/or dried.
  • the basket 5 also defines a front opening that is located such as to match the opening of the washing tank 3, in order to load/unload the laundry.
  • the washing tank 3 is suitable to contain the washing liquid during the laundry washing steps, and to be a portion of the drying circuit during the laundry drying step.
  • a washing water delivery system is provided to be connected to the water system.
  • This washing water delivery system comprises a plurality of washing flow paths extending from, for example, two supply electrovalves 6, 7, through corresponding compartments 8, 9, 10 of a detergent tray 12, to the washing tank 3.
  • a drain duct 14 with a discharge pump 15 being associated thereto, which provides for the removal of the washing liquid from the tank 3 and controls, together with the supply electrovalves 6, 7 the level of liquid within the tank 3.
  • a coiled electric resistance 11 is provided, which is arranged within the tank 3, particularly on the bottom 13 of the latter, in the gap between the tank wall 3 and the laundry basket 5.
  • the washer-drier machine 1 further comprises a closed-loop drying circuit with a suction unit, for example an fan impeller 17 driven by an electric motor 18, a heat exchanger as well as a heating unit with electric resistance 21, which communicate with each other by means of a drying circuit 16.
  • a closed-loop drying circuit with a suction unit for example an fan impeller 17 driven by an electric motor 18, a heat exchanger as well as a heating unit with electric resistance 21, which communicate with each other by means of a drying circuit 16.
  • the air flow 22 generated by the suction unit 17, 18 is heated by the electric resistance 21 and sent to the basket 5, where it flows through the wet laundry thereby causing the water contained in the fabric to evaporate.
  • the heat exchanger is arranged downstream of the laundry basket 5 (with reference to the direction of the drying air flow 22) and cools the wet air flowing from the basket 5.
  • vapour condensates and is collected and discharged, for example together with a cooling water volume.
  • the de-humidified air is then sucked again by the suction unit 17, 18 and ricirculated.
  • the washing tank 3 defines therein a condensation space 19 suitable to contain a cooling water volume 20 that forms a free water surface spaced away from the basket 5 such as to be capable of cooling the drying air flow 22 downstream of the basket 5 within the washing tank 3.
  • this condensation space 19 is formed at the tank bottom 13, approximatively below the basket 5.
  • the whole supply circuit of the condenser can be eliminated, as the latter can be easily supplied with mains water loaded by the washing water loading circuit, since it consists of a free surface of a water volume 20 (condensation surface) within the washing tank 3.
  • the washer-drier machine 1 comprises a control unit (not shown in the drawings) which allows setting a drying program that carries out the following steps:
  • the step of controlling the level of cooling water 20 may comprise the step of detecting a value indicative of the level of cooling water 20 and at least partially draining the cooling water 20 through the drain duct 14, when the level of cooling water 20 exceeds said upper level.
  • the operation of detecting a value indicative of the level of cooling water 20 may be carried out by means of a pressure sensor 24 that is arranged at the tank bottom 13.
  • This pressure sensor 24 (e.g., a so-called pressure switch) generates a pressure signal and sends it to the control unit that, in turn, controls the discharge pump 15 and causes the latter to at least partially drain the cooling water 20 and condensate from the washing tank 3.
  • the pressure sensor 24 directly interacts with the power supply of the discharge pump 15 and causes the partial or total drainage of the tank 3 in response to the attainment of a determined water level, for example the above-cited upper level.
  • control of the cooling water level 20 can be carried out with one or more level sensors (such as a sensor using the electrical conductivity of the cooling water 20) that are connected to the control unit and/or directly to the discharge pump 15.
  • level sensors such as a sensor using the electrical conductivity of the cooling water 20
  • the washer-drier machine and the washing and drying programs thereof may be configured such that the control of the level of cooling water 20 during the drying step and the control of the washing liquid level during the washing and rinse step are carried out by means of a same pressure sensor 24 or group of level sensors.
  • control of the level of cooling water 20 is carried out by at least partially draining this water, at preset time intervals, wherein the duration of these intervals is determined, for example, on the basis of a series of tests or numerical simulations and takes into account the condensate accumulation on the tank bottom.
  • the process step of controlling the temperature of cooling water 20 comprises the step of detecting the temperature or a magnitude indicative of the temperature of the cooling water 20 and at least partially discharging the cooling water 20 through the drain duct 14 and feeding a corresponding amount of fresh mains water in the washing tank 3, when the temperature detected exceeds said upper value.
  • the operation of detecting the temperature of the cooling water 20 is carried out by means of a temperature sensor 25 arranged in the vicinity of the tank bottom 13.
  • This temperature sensor 25 generates a temperature signal and sends it to the control unit, which, in turn controls the drain pump 15 and the supply electrovalves 6, 7.
  • the control unit When the upper temperature is reached or exceeded, the control unit causes the drain pump 15 to at least partially remove the cooling water 20 and condensate from the washing tank 3 and, subsequently, it opens the supply electrovalve 6 and/or 7 to feed a corresponding amount of cold mains water, preferably through the same water supply duct used during the washing step.
  • the temperature sensor 25 directly interacts with the power supply of the discharge pump 15 and supply electrovalves 6, 7 and causes the partial or total replacement of the cooling water 3 in response to the fact that the upper temperature has been attained or exceeded.
  • the washer-drier machine and the washing and drying programs are configured such that the control of the temperature of the cooling water 20 during the drying step and the control of the temperature of the washing liquid during the washing and rinse steps are carried out by means of a same temperature sensor 25 or groups of temperature sensors.
  • control of the temperature of the cooling water 20 can be carried out by at least partially draining this water, at preset time intervals, wherein the duration of these intervals is determined, for example, on the basis of a series of tests or numerical simulations and takes into account the temperature increase in the mixture of cooling water and condensate on the tank bottom 13.
  • control unit is configured such as to allow selecting a drying program in which during the last drying step, also known as the cool-down step, the condensation space 19 results to be completely without cooling water 20, which has been previously drained and not replaced with fresh mains water.
  • the last drying step also known as the cool-down step
  • the residual humidity can be extracted from the laundry without an active cooling by the drying air flow 22.
  • control unit is configured such as to allow selecting a drying program in which only or also during the early drying step, the condensation space 19 results to be completely without cooling water 20, which will be loaded only about 20 min - 40 min, preferably 30 min after the beginning of the drying step.
  • experimental tests have proved that a part of the humidity can be also extracted from the laundry during the early drying step without an active cooling by the cooling air flow 22.
  • the washing tank 3 which is preferably moulded from plastics, defines therein a suction portion 26 of the drying duct 16, i.e. the duct portion arranged downstream of the heat exchanger (consisting of the free surface 23 of the cooling water 20 on the tank bottom 13) and upstream of the suction unit 17, 18.
  • this suction duct 26 extends within the washing tank 3 from a lower area thereof to an opening 27 in the upper area thereof and is defined by a portion of the inner surface of the tank 3 and by a lid 28 that is separately manufactured and subsequently connected to the inner surface of the washing tank 3.
  • washing tank 3 can be advantageously used both with washing machines without drying function (without the inner lid 28), and with drier-washer machines (with the inner lid 28).
  • the washer-drier machine 1 comprises in addition to the heat exchanger consisting of the cooling water volume 20 on the tank bottom 13, a further heat exchanger 29, which is preferably arranged downstream of the first heat exchanger 19, 20 (with reference to the direction of the drying air flow 22)
  • the additional heat exchanger 29 comprises a cooling coil 30 that can be supplied with mains water and is arranged in the supply path of the washing water, preferably between the supply electrovalve 6, 7 and the detergent tray 12.
  • the additional heat exchanger 29 is also supplied by means of the same washing water supply circuit.
  • the cooling coil 30 of the additional heat exchanger 29 is formed, for example by means of blow moulding, at or in the lid 28 of the suction portion 26 of the drying duct 16.
  • the cooling coil 30 cannot be emptied. By opening the supply valve 6, 7, the water contained within the cooling coil 30 can be only replaced with fresh mains water.
  • control unit in addition to the first heat exchanger consisting of the cooling water volume 20 on the bottom of the washing tank 3, the control unit is preferably configured such as to allow selecting a drying program, in which, during an early drying step, only the additional heat exchanger will be operated, whereas the condensation space 19 on the tank bottom 13 is not provided with cooling water 20.
  • the washer-drier machine according to the invention has a number of advantages.
  • the washer-drier machine according to the invention is a considerable simplification and unification, both in terms of structure and washing and drying programs.

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

Claims (20)

  1. Wasch-Trockner-Gerät (1) zum Waschen und Trocknen der Wäsche, umfassend:
    - einen Waschbehälter (3), welcher dazu geeignet ist, die Waschflüssigkeit zu beinhalten;
    - einen Korb (5), welcher dazu geeignet ist, die Wäsche aufzunehmen und innerhalb des Waschbehälters (3) drehbar gelagert zu sein;
    - einen Trocknungskreislauf (16, 17, 18, 19, 20, 21) mit einer Saugeinheit (17, 18), einem Wärmetauscher (19, 20) und einer Heizeinheit (21), welche miteinander mittels einer Trocknungsleitung (16) in Verbindung stehen, wobei die Trocknungsleitung (16, 17, 18, 19, 20, 21) dazu geeignet ist, einen Trocknungsluftstrom (33) durch den Korb (5) zu liefern,
    - eine Regel-/Steuereinheit; und
    - Niveau-Regel-/-Steuermittel (24, 6, 7, 15)
    wobei der Waschbehälter (3) darin einen Kondensationsraum (19) definiert, welcher dazu geeignet ist, ein Kühlwasservolumen (20) zu beinhalten, welches eine freie Wasserfläche (23) bildet, welche von dem Korb (5) beabstandet ist, um in der Lage zu sein, den Trocknungsluftstrom (22) zu kühlen, welcher von dem Korb (5) innerhalb des Waschbehälters (3) bläst, und wobei während eines Trocknungsschritts die Regel-/Steuereinheit derart eingerichtet ist, dass das Wasservolumen (20) in dem Kondensationsraum (19) gehalten ist und die Niveau-Regel-/-Steuermittel (24, 6, 7, 15):
    - das Kühlwasservolumen (20) derart anordnen, dass die freie Wasserfläche (23) aus der Korbanordnung weggelassen wird;
    - das Kühlwasserniveau (20) derart regeln/steuern, dass während des Trocknungsschritts, auf Grund der Bildung des Kondensats, die freie Wasserfläche (23) ein vorbestimmtes oberes Niveau, welches unterhalb des Korbs (5) angeordnet ist, nicht überschreitet,
    dadurch gekennzeichnet, dass die Niveau-Regel-/-Steuermittel (24, 6, 7, 15) Zeitgebermittel umfassen, welche den Ablass wenigstens eines Teils des Kühlwasservolumens (20) und des Kondensat zu voreingestellten Zeitintervallen antreiben.
  2. Wasch-Trockner-Gerät (1) nach Anspruch 1,
    wobei der Kondensationsraum (19) an dem Boden (13) des Waschbehälters (3) gebildet ist.
  3. Wasch-Trockner-Gerät (1) nach einem der vorhergehenden Ansprüche, umfassend Temperatur-Regel-/-Steuermittel (25, 6, 7, 15), welche während des Trocknungsschritts:
    - die Temperatur des Kühlwasservolumens (20) derart regeln/steuern, dass während des Trocknungsschritts, auf Grund des Wärmeaustausches mit dem Trocknungsluftstrom (22), die Temperatur des Wasservolumens (20) einen vorbestimmten oberen Temperaturwert nicht übersteigt, über welchem der Temperaturunterschied zwischen der Kondensationsfläche (23) und den Trocknungsluftstrom (22) für Kondensationszwecke nicht ausreichend ist.
  4. Wasch-Trockner-Gerät (1) nach Anspruch 3, wobei die Temperatur-Regel-/-Steuermittel (25, 6, 7, 15) dazu eingerichtet sind, die Temperatur oder eine Größe, welche die Temperatur des Kühlwassers (20) anzeigt, während dieses Trocknungsschritts zu erfassen und zumindest teilweise das Kühlwasser (20) abzulassen und eine entsprechende Menge an frischem Leitungswasser in den Waschbehälter (3) einzuspeisen, wenn die erfasste Temperatur oder die erfasste anzeigende Größe einen dem oberen Wert entsprechenden Wert überschreitet.
  5. Wasch-Trockner-Gerät (1) nach dem vorhergehenden Anspruch, wobei die Temperatur-Regel-/-Steuermittel einen Temperatursensor (25) umfassen, welcher in der Nähe des Behälterbodens (13) angeordnet ist.
  6. Wasch-Trockner-Gerät (1) nach dem vorhergehenden Anspruch, wobei der Temperatursensor (25) in Reaktion auf das Erreichen des oberen Temperaturwerts ein Temperatursignal erzeugt und es an die Regel-/Steuereinheit sendet, welche wiederum die Abgabepumpe (15) und die Versorgungs-Elektroventile (6, 7) regelt/steuert und Letztere dazu veranlasst:
    - wenigstens teilweise das Kühlwasser (20) und das Kondensat aus dem Waschbehälter (3) zu entfernen und
    - anschließend eine entsprechende Menge von frischem Leitungswasser einzuspeisen.
  7. Wasch-Trockner-Gerät (1) nach Anspruch 5, wobei der Temperatursensor (25) direkt mit der Stromversorgung der Abgabepumpe (15) und dem Versorgungs-Elektroventil (6, 7) wechselwirkt und entweder den teilweisen oder gesamten Austausch des Kühlwassers (20) in Reaktion auf die Tatsache, dass die obere Temperatur erreicht worden ist oder überschritten worden ist, veranlasst.
  8. Wasch-Trockner-Gerät (1) nach einem der vorhergehenden Ansprüche, wobei während des Trocknungsschritts das Einspeisen des Kühlwasservolumens (20) in den Waschbehälter (3) durch die selbe Wasserzuführleitung ausgeführt wird, welche während des Waschschritts verwendet worden ist.
  9. Wasch-Trockner-Gerät (1) nach einem der vorhergehenden Ansprüche, wenn abhängig von Anspruch 3, wobei ein gleicher Temperatursensor (25) sowohl die Kühlwassertemperatur (20) während des Trocknungsschritts als auch die Waschflüssigkeitstemperatur während der Wasch- und Spül-Schritte regelt/steuert.
  10. Wasch-Trockner-Gerät (1) nach Anspruch 3, wobei die Temperatur-Regel-/-Steuermittel Zeitgebermittel umfassen, welche den Austausch wenigstens eines Teils des Kühlwassers (20) zu voreingestellten Zeitintervallen antreiben.
  11. Wasch-Trockner-Gerät (1) nach einem der vorhergehenden Ansprüche, wobei die Regel-/Steuereinheit dazu eingerichtet ist, ein Auswählen eines Trocknungsprogramms zu erlauben, wobei es sich während des letzten Trocknungs- (Herunterkühlungs-) Schritts ergibt, dass der Kondensationsraum (19) vollständig ohne Kühlwasser (20) ist.
  12. Wasch-Trockner-Gerät (1) nach einem der vorhergehenden Ansprüche, wobei die Regel-/Steuereinheit dazu eingerichtet ist, ein Auswählen eines Trocknungsprogramms zu erlauben, in welchem es sich nur oder auch während eines frühen Trocknungsschritts ergibt, dass der Kondensationsraum (19) vollständig ohne Kühlwasser (20) ist, welches nur nach dem frühen Schritt eingegeben werden wird.
  13. Wasch-Trockner-Gerät (1) nach einem der vorhergehenden Ansprüche, wobei der Waschbehälter (3) darin eine röhrenförmige Saugleitung (26) definiert, welche stromabwärts des Wärmetauschers (19, 20) und stromaufwärts der Saugeinheit (17, 18) angeordnet ist.
  14. Wasch-Trockner-Gerät (1) nach dem vorhergehenden Anspruch, wobei sich die Saugleitung (26) innerhalb des Waschbehälters (3) von einem unteren Bereich davon zu einer Öffnung (27) in dem oberen Bereich davon erstreckt und durch einen Abschnitt der inneren Fläche des Behälters (3) und durch eine Klappe (28), welche getrennt hergestellt ist und anschließend mit der inneren Fläche des Waschbehälters (3) verbunden ist, definiert ist.
  15. Wasch-Trockner-Gerät (1) nach einem der vorhergehenden Ansprüche, umfassend zusätzlich zu dem Wärmetauscher (19, 20) einen zusätzlichen Wärmetauscher (29), welcher stromabwärts des ersten Wärmetauschers (19, 20) in Bezug auf die Richtung des Trocknungsluftstroms (22) angeordnet ist.
  16. Wasch-Trockner-Gerät (1) nach dem vorhergehenden Anspruch, wobei der zusätzliche Wärmetauscher (29) eine Kühlspule (30) umfasst, welche mit Leitungswasser versorgt werden kann und in dem Versorgungsweg des Waschwassers angeordnet ist.
  17. Wasch-Trockner-Gerät (1) nach dem vorhergehenden Anspruch, wobei der zusätzliche Wärmetauscher (29) in Reihe zwischen dem Versorgungs-Elektroventil (6, 7) und einem Detergens-Fach (12) angeordnet ist und mittels des gleichen Waschwasserversorgungskreislaufs versorgt werden kann.
  18. Wasch-Trockner-Gerät (1) nach einem der Ansprüche 15 bis 17, wobei die Kühlspule (30) des zusätzlichen Wärmetauschers (29) an oder in der Klappe (28) der Saugleitung (26) gebildet ist, um zwei weitere Kondensationsflächen bereitzustellen, welche beide innerhalb des Waschbehälters (3) angeordnet sind.
  19. Wasch-Trockner-Gerät (1) nach einem der Ansprüche 15 bis 18, wobei während des Schritts des Regelns/Steuerns des Niveaus der Kondensations-Frei-Fläche (23) wenigstens ein Teil des Kühlwasservolumens (20) und des Kondensats, welche an dem Behälterboden (3) angesammelt sind, unabhängig von dem zusätzlichen Wärmetauscher (29) abgelassen werden können.
  20. Wasch-Trockner-Gerät (1) nach einem der Ansprüche 15 bis 19, wobei die Regel-/Steuereinheit dazu eingerichtet ist, ein Auswählen eines Trocknungsprogramms zu erlauben, in welchem während eines frühen Trocknungsschritts nur der zusätzliche Wärmetauscher (29) betrieben werden wird, wobei der Kondensationsraum (19) an dem Behälterboden (13) nicht mit Kühlwasser (20) versehen ist.
EP07425471.5A 2007-07-26 2007-07-26 Wasch- und Trocknungsmaschine Ceased EP2019162B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07425471.5A EP2019162B1 (de) 2007-07-26 2007-07-26 Wasch- und Trocknungsmaschine

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EP2019162B1 true EP2019162B1 (de) 2016-10-19

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KR20130123655A (ko) * 2012-05-03 2013-11-13 엘지전자 주식회사 의류 처리장치 및 의류처리장치의 제어방법
KR101706663B1 (ko) 2013-02-20 2017-02-27 삼성전자주식회사 드럼 세탁기
CN111871035B (zh) * 2020-07-23 2022-01-04 江苏甬磁磁性材料研究院有限公司 一种磁钢生产成型冷却装置及其冷却方法

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DE2459319A1 (de) * 1974-12-14 1976-06-16 Hugo Werner Geschka Waeschetrockner
DE2654976C3 (de) * 1976-12-03 1980-11-27 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Zum Trocknen eingerichtete Wäschebehandlungsmaschine
DE3315754A1 (de) * 1983-04-30 1984-10-31 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Haushalts-waeschetrockner
US20060137105A1 (en) * 2004-11-12 2006-06-29 Lg Electronics Inc. Drying control apparatus and method of washing and drying machine
KR100712849B1 (ko) * 2005-02-03 2007-05-02 엘지전자 주식회사 세탁물 처리 기기의 응축 구조

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