EP2065510B1 - Machine pour traiter le linge, particulièrement une machine à laver sèche-linge avec circuit de recirculation - Google Patents

Machine pour traiter le linge, particulièrement une machine à laver sèche-linge avec circuit de recirculation Download PDF

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Publication number
EP2065510B1
EP2065510B1 EP07425750.2A EP07425750A EP2065510B1 EP 2065510 B1 EP2065510 B1 EP 2065510B1 EP 07425750 A EP07425750 A EP 07425750A EP 2065510 B1 EP2065510 B1 EP 2065510B1
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EP
European Patent Office
Prior art keywords
washer
washing
drier machine
recirculation
drying
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EP07425750.2A
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German (de)
English (en)
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EP2065510A1 (fr
Inventor
Silvano Fumagalli
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Candy SpA
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Candy SpA
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Priority to PL07425750T priority Critical patent/PL2065510T3/pl
Priority to EP07425750.2A priority patent/EP2065510B1/fr
Publication of EP2065510A1 publication Critical patent/EP2065510A1/fr
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the present invention relates to a machine for treating laundry, particularly a domestic washer-drier machine which provides for washing and drying the laundry.
  • Dokument EP 1 473 403 A1 discloses a working machine including a laundry drying unit.
  • 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 that can be connected to the water supply is provided in order to load the tank with mains water and detergent substances and additives.
  • This washing water delivery system comprises a plurality of electrovalves 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 is provided with a discharge pump being associated therewith, which provides for the removal of the washing liquid from the tank and controls, together with the supply electrovalves, the level of liquid within the tank.
  • An electric resistance being arranged within the tank in the gap between the tank wall and laundry basket is provided to heat the washing liquid contained in the tank.
  • the drying circuit of prior art washer-drier machines typically comprises a suction unit, a heat exchanger and a heating unit with electric resistances communicating with each other by means of a drying duct.
  • the air flow generated by the suction unit is heated by the electric resistances and blown to the basket, where it causes the water contained within the tissues to evaporate as it passes through the wet laundry.
  • 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 dehumidified air is then sucked again by the suction unit and recirculated.
  • 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 to the heat exchanger (condenser).
  • Prior art washer-drier devices while being satisfying under many aspects, have a high consumption of water, electric power and detergent, during the washing and drying steps.
  • the volume of the liquid accommodated within the discharge duct and on the tank bottom is destined to be completely unused and is just discharged in the wastewater network.
  • the object of the present invention is thus to provide a washer-drier machine, having such characteristics as to decrease the waste of water, detergent, additives and electric power that is due to unused liquid volumes during the laundry washing, rinse and drying operations.
  • the washer-drier machine comprises:
  • a discharge circuit with a discharge duct and a discharge pump which is at least partially arranged underneath the bottom of the washing tank and in fluid communication with said tank bottom, such as to be capable of discharging the liquid contained within the washing tank,
  • said discharge circuit defines a space which, in the operating condition of the washer-drier machine, contains an additional liquid volume being arranged below the laundry basket,
  • a recirculation circuit with a recirculation duct and pump means which is connected to said washing tank and said discharge circuit in a location below the tank bottom, such as to be capable of conveying at least one part of the additional volume into the washing tank.
  • the recirculation circuit is connected to the washing tank in a location above the level as defined by the lower side of the basket, and preferably, above the predetermined liquid level for the washing steps.
  • the recirculation circuit is connected to the condenser of the drying circuit, such as to supply, during the drying step, said condenser with cooling liquid that is taken from said additional liquid volume.
  • the condenser can be, in turn, connected to the washing tank, such as to obtain, during the washing operation, the admixing of the washing water, and during the drying step, the cooling liquid together with the condensate are collected on the tank bottom and underlying discharge circuit, from where they can be discharged or conveyed (recirculated) again to the condenser.
  • the washing tank defines therein a condensation space suitable to contain a cooling water volume that forms 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.
  • This cooling free water surface can be either added to a "traditional" condenser or entirely replace the latter.
  • the cooling water volume within the tank and discharge circuit which exactly corresponds to the additional water volume, has a thermal gradient given by the difference between the temperature of the hot laundry within the basket and that of the cooler external environment. Due to said recirculation circuit, the further synergic effect is obtained, which, during the drying step, the cooler portion of the cooling water volume is recirculated and mixed with the warmer portion directly involved in the condensation process.
  • FIG. 1 is a side sectional view of a washer-drier machine according to an embodiment of the invention
  • FIG. 2 is a front sectional view of the washer-drier machine in Fig. 1 ;
  • FIG. 3 is a side sectional view of a washer-drier machine according to a further embodiment of the invention.
  • Fig. 4 is a front sectional view of the washer-drier machine in Fig. 3 ;
  • Fig. 5 illustrates a diagram of a filtering system of the washer-drier machine according to an embodiment of the invention
  • FIG. 6 illustrates a diagram of a filtering system of the washer-drier machine according to an embodiment of the invention.
  • 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 to 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 be capable of carrying out the loading/unloading of 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 that can be connected to the water supply is provided in order to load the tank 3 with mains water and detergent substances and additives.
  • This washing water delivery system comprises a plurality of washing flow paths extending from, for example, two supply electrovalves (not illustrated) through corresponding compartments 6 of a detergent tray 7 to the washing tank 3.
  • a drain duct 9 On the bottom 8 of the washing tank 3, there is connected a drain duct 9, with a discharge pump 10 associated therewith and being arranged underneath the tank bottom 8, which provides for the removal of the washing liquid from the tank 3 and controls, together with the supply electrovalves, the level of liquid within the tank 3.
  • a coiled electric resistance is provided, which is arranged within the tank 3, particularly on the bottom 8 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 11 driven by an electric motor 12, a heat exchanger as well as a heating unit with electric resistance 13, which communicate with each other by means of a drying circuit 14.
  • a suction unit for example an fan impeller 11 driven by an electric motor 12, a heat exchanger as well as a heating unit with electric resistance 13, which communicate with each other by means of a drying circuit 14.
  • the air flow 15 generated by the suction unit 11, 12 is heated by the electric resistance 13 and blown to the basket 5, where it causes the water contained within the tissues to evaporate as it passes through the wet laundry.
  • the heat exchanger is arranged downstream of the laundry basket 5 (with reference to the direction of the drying air flow 15) 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 dehumidified air is then sucked again by the suction unit 11,12 and recirculated.
  • the discharge circuit (discharge duct 9 and discharge pump 10) defines, along with the tank bottom 8, a space that, in the operating condition of the washer-drier machine 1, contains an additional liquid volume 16 that is arranged below the laundry basket 5.
  • a recirculation circuit with a recirculation duct 17 and pump means for example a recirculation pump 18 is connected to the washing tank 3 and with said discharge circuit 9, 10 in a point below the tank bottom 8, such as to be capable of at least partially conveying the additional liquid volume 16 to the washing tank 3.
  • the recirculation circuit is connected to the discharge circuit in the vicinity of the discharge pump 10 or directly thereto, which pump is usually arranged in the lowermost point of the whole discharge circuit.
  • the recirculation pump 18 is connected to the discharge pump 10 (by means of the piping of the discharge and recirculation ducts or by dedicated connection members) such that the recirculation pump is structurally supported by the discharge pump, and thus does not require further support means.
  • the recirculation pump 18 is connected (by means of the piping of the discharge circuit or by means of suitable connection members) to the washing tank 3, preferably to the tank bottom 8, whereas the connection point between the discharge circuit and the recirculation circuit can be either in the vicinity of the tank bottom or even much spaced from the latter.
  • a mechanical connection of the recirculation pump to the tank bottom 8 allows using the same support and shock-absorbing components as the tank-basket unit for supporting the recirculation pump 18.
  • the washing tank 3 defines a condensation space 19 therein, which is 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 8, 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 cooling liquid due to the inevitable filling of the discharge circuit 9, 10 with cooling liquid, the cooling liquid also has said additional liquid volume 16 with a thermal gradient that is determined by the difference between the highest temperature of the condensation surface that is exposed to the hot air flow 15 and the lowest temperature of the farthermost areas from the basket 5.
  • the coldest portion of the cooling water volume is fed back into the washing tank 3, and then admixed with the warmest cooling water portion that is directly involved in the condensation process.
  • 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 cooling water level 20 comprises the step of detecting a value indicative of the cooling water level 20 and at least partially draining the cooling water 20 through the drain duct 9, when the cooling water level 20 exceeds said upper level.
  • the operation of detecting a value indicative of the cooling water level 20 is carried out by means of a pressure sensor 22 that is arranged at the tank bottom 8.
  • This pressure sensor 22 e.g., a so-called pressure switch
  • the control unit controls the discharge pump 10 and causes the latter to at least partially drain the cooling water 20 and condensate from the washing tank 3.
  • the pressure sensor 22 directly interacts with the power supply of the discharge pump 10 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 10.
  • 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 are configured such that the control of the cooling water level 20 during the drying step and the control of the washing liquid level during the washing and rinse steps are carried out by means of a same pressure sensor 22 or group of level sensors.
  • control of the cooling water level 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 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 entity indicative of the temperature of the cooling water 20 and at least partially discharging the cooling water 20 through the drain duct 9 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 23 arranged in the vicinity of the tank bottom 8.
  • This temperature sensor 23 generates a temperature signal and sends it to the control unit, which, in turn controls the drain pump 10 and the supply electrovalves.
  • the control unit When the upper temperature is reached or exceeded, the control unit causes the drain pump 10 to at least partially remove the cooling water 20 and condensate from the washing tank 3 and, subsequently, it opens the supply electrovalve to feed a corresponding amount of cold mains water, preferably through the same water supply duct used during the washing step.
  • the temperature sensor 23 directly interacts with the power supply of the discharge pump 10 and supply electrovalves and causes the partial or total replacement of the cooling water 3 in response to the fact that the upper temperature has been either 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 23 or groups of temperature sensors.
  • control of the temperature of the cooling water 20 can be carried out by at least partially replacing 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 8.
  • the control unit of the washer-drier machine 1 or a local control unit of the recirculation pump 18 controls the electric power supply of the recirculation pump 18 such as to carry out the recirculation of the additional liquid volume 16 and the admixture of the latter with:
  • control unit controls the loading of mains water, the drainage of cooling liquid and condensate and the recirculation of the additional liquid volume, such as to avoid exceeding a determined maximum water level within the tank, said maximum level being lower than the lower side of the basket 5, and to recirculate an amount of water that, when the recirculation pump is deactivated, would increase the water level in the tank beyond said maximum level and beyond the lower side of the basket 5.
  • the washing tank 3 which is preferably moulded from plastics, defines therein a suction portion 24 of the drying duct 14, i.e. the duct portion arranged downstream of the heat exchanger (consisting of the free surface 21 of the cooling water 20 on the tank bottom 8) and upstream of the suction unit 11, 12.
  • this suction duct 24 extends within the washing tank 3 from a lower area thereof to an opening 25 in the upper area thereof and is defined by a portion of the inner surface of the tank 3 and by a lid 26 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 26), and with drier-washer machines (with the inner lid 26).
  • the washer-drier machine 1 comprises, in addition to the heat exchanger consisting of the cooling water volume 20 on the tank bottom 8, a further heat exchanger 27, which is preferably arranged downstream of the first heat exchanger 19, 20 (with reference to the flow direction of the drying air 15) and provided with a cooling device, such as a spraying nozzle 28 or cooling coil (not shown) that can be supplied by means of the recirculation circuit 17, 18 with cooling liquid being taken from the discharge circuit 9, 10.
  • a cooling device such as a spraying nozzle 28 or cooling coil (not shown) that can be supplied by means of the recirculation circuit 17, 18 with cooling liquid being taken from the discharge circuit 9, 10.
  • the further heat exchanger 27 is connected to the washing tank 3, such that, during the washing operation, the admixture of the washing water is obtained, and during the drying step (and also considering possible embodiments without condenser with free water surface 19, 20, 21), the cooling liquid together with the condensate, are collected on the tank bottom 8 and in the discharge circuit 9, 10 therebelow, from where they can be either discharged or conveyed again (recirculated) to the heat exchanger 27.
  • the recirculation duct 17 is connected to the washing tank in a point above the level being defined by the lower side of the basket 5, and preferably, above the predetermined liquid level for the washing steps.
  • the lower suction opening 29 of the suction portion 24 is arranged below a level of rinse liquid 30 during a rinse step, and preferably, this suction opening 29 is arranged at or below a washing liquid level 31 during a washing step. This configuration facilitates the cleaning of the suction duct during the washing and rinse operations.
  • the washer-drier machine comprises a particulate filter 32 arranged upstream of the discharge pump 10 and suitable to hold the sediments and limestone that are contained in the liquid that is intended to be discharged, in order to avoid damaging and jamming the rotor of the discharge pump 10.
  • the recirculation pump 18 can be arranged downstream of the particulate filter 32 and upstream of the discharge pump 10 (with reference to the direction of the discharge flow), such that the same particulate filter 32 holds the particulate both during the recirculation and during the discharge of the liquid, thereby consequently protecting both pumps ( Fig. 5 ).
  • the particulate filter 32 is configured such as to divide the discharge duct 9 into branches upstream of the discharge pump 10 and recirculation pump 18, and comprises a first particulate catching device 33 that is arranged in the inlet flow of the discharge pump 9 and a second particulate catching device 34 (distinct from the first particulate catching device 33) and arranged in the inlet flow of the recirculation pump 18. This allows designing both particulate catching devices 33, 34 in a targeted manner for each one of the discharge and recirculation pumps ( Fig.6 ).
  • both particulate catching devices 33, 34 are associated with a same single particulate collection chamber 35. This allows, on the one side, a targeted filtering and differentiated according to the discharge and recirculation functions, and on the other hand, emptying only one container when cleaning the filter.
  • the recirculation circuit 17, 18 is advantageous both for washer-drier machines (since the synergic effect is obtained of best using the thermal characteristics and the laundry treatment substances during the washing and drying steps) and for washing machines (in which the recirculation allows a better use of the thermal energy of the washing liquid and substances dissolved therein).
  • the machine for treating the laundry according to the invention particularly in the embodiment of washer-drier machine has a number of advantages.

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

Claims (25)

  1. Lave-linge/sèche-linge (1) destiné à laver et sécher le linge, comportant :
    - une cuve de lavage (3), prévue pour contenir le liquide de lavage ;
    - un panier (5) prévu pour recevoir le linge et qui est supporté de façon pivotante dans la cuve de lavage (3) ;
    - un circuit de séchage (11, 12, 13, 14, 19, 20, 24, 27, 28) avec une unité d'aspiration (11, 12), un échangeur de chaleur (19, 20, 27, 28) et une unité de chauffage (13) qui communiquent l'un avec l'autre au moyen d'un conduit de séchage (14), ledit conduit de séchage étant prévu pour délivrer un écoulement d'air de séchage (15) à travers ledit panier (5),
    - un circuit de vidange (9, 10) avec un conduit de vidange (9) et une pompe de vidange (10), qui est au moins partiellement disposé sous le fond (8) de la cuve de lavage (3) et en communication de fluide avec ledit fond de cuve (8), de façon à être capable de vidanger le liquide contenu dans la cuve de lavage (3),
    dans lequel ledit circuit de vidange (9, 10) définit un espace qui, dans l'état de marche du lave-linge/sèche-linge (1), contient un volume de liquide supplémentaire (16) qui se trouve sous le panier de linge (5),
    caractérisé en ce qu'il comporte un circuit de recyclage (17, 18) avec un conduit de recyclage (17) et des moyens de pompe (18), qui est relié à ladite cuve de lavage (3) et audit circuit de vidange (9, 10) dans un emplacement au-dessous du fond de cuve (8), de façon à être capable de transporter au moins une partie dudit volume supplémentaire (16) dans ladite cuve de lavage (3).
  2. Lave-linge/sèche-linge (1) selon la revendication 1, dans lequel le circuit de recyclage (17, 18) est relié au circuit de vidange (9, 10) à proximité de la pompe de vidange (10) ou bien directement à la pompe de vidange (10).
  3. Lave-linge/sèche-linge (1) selon la revendication 2, dans lequel la pompe de recyclage (18) est reliée à la pompe de vidange (10), de telle sorte que la pompe de recyclage (18) est structurellement supportée par la pompe de vidange (10).
  4. Lave-linge/sèche-linge (1) selon la revendication 1, dans lequel la pompe de recyclage (18) est supportée par la cuve de lavage (3).
  5. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, dans lequel le circuit de recyclage (17, 18) est relié à l'échangeur de chaleur (19, 20 ; 27, 28) du circuit de séchage, de façon à alimenter, pendant l'opération de séchage, ledit échangeur de chaleur (19, 20 ; 27, 28) avec du liquide de refroidissement provenant dudit volume de liquide supplémentaire (16).
  6. Lave-linge/sèche-linge (1) selon la revendication 5, dans lequel ledit échangeur de chaleur (19, 20 ; 27, 28) est relié à la cuve de lavage (3), de façon à obtenir, pendant l'opération de lavage, le mélange de l'eau de lavage, et pendant l'étape de séchage, le liquide de refroidissement avec le condensat est recueilli sur le fond de cuve (8) et dans le circuit de vidange (9, 10) en dessous, d'où ils peuvent être transportés de nouveau vers l'échangeur de chaleur (19, 20 ; 27, 28).
  7. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, dans lequel la cuve de lavage (3) définit à l'intérieur, au niveau du fond de cuve (8), un espace de condensation (19) prévu pour contenir un volume d'eau de refroidissement (20) qui forme une surface d'eau libre (21) qui est espacée du panier (5) de façon à être capable de refroidir l'écoulement d'air de séchage (15) en aval du panier (5) dans la cuve de lavage (3),
    et dans lequel ledit conduit de recyclage (17, 18) est configuré pour délivrer de nouveau, pendant l'étape de séchage, au moins une partie du volume d'eau de refroidissement supplémentaire (16) à la cuve de lavage (3) et pour la mélanger avec la partie d'eau de refroidissement (20) formant ladite surface de condensation (21).
  8. Lave-linge/sèche-linge (1) selon la revendication précédente, comportant, en plus de l'échangeur de chaleur comprenant le volume d'eau de refroidissement (20) sur le fond de cuve (8), encore un autre d'échangeur de chaleur (27), qui est de préférence disposé en aval du premier échangeur de chaleur (19, 20) dans la direction de l'écoulement d'air de séchage (15) et ayant un dispositif de refroidissement (28) qui peut être alimenté au moyen dudit circuit de recyclage (17, 18) avec du liquide de refroidissement qui est prélevé dans le circuit de vidange (9, 10).
  9. Lave-linge/sèche-linge (1) selon la revendication précédente, dans lequel ledit autre échangeur de chaleur (27) est relié à la cuve de lavage (3), de telle sorte que le liquide de refroidissement de l'échangeur de chaleur supplémentaire (27) est refoulé dans la cuve de lavage (3).
  10. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, dans lequel une ouverture de sortie du conduit de recyclage (17) est reliée à la cuve de lavage (3) en un point au-dessus du niveau qui est défini par le côté inférieur du panier (5).
  11. Lave-linge/sèche-linge (1) selon la revendication précédente, dans lequel ladite ouverture de sortie du conduit de recyclage (17) est reliée à la cuve de lavage (3) en un point au-dessus du niveau de liquide prédéterminé pour les étapes de lavage.
  12. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, dans lequel une ouverture d'aspiration inférieure (29) du conduit de séchage (14) est disposée au-dessous d'un niveau de liquide de rinçage (30) pendant une étape de rinçage et au niveau de ou en dessous d'un niveau de liquide de lavage (31) pendant une étape de lavage.
  13. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, comportant un filtre à particules (32) disposé en amont de la pompe de vidange (10),
    dans lequel la pompe de recyclage (18) est disposée en aval du filtre à particules (32) et en amont de la pompe de vidange (10) dans la direction de l'écoulement de vidange, de telle sorte que le même filtre à particules (32) retient les particules pendant le recyclage et pendant la vidange du liquide.
  14. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, comportant un filtre à particules (32), qui est configuré pour diviser le conduit de vidange (9) en branches en amont de la pompe de vidange (10) et de la pompe de recyclage (18), ledit filtre à particules (32) comportant un premier dispositif de retenue de particules (33) qui est disposé dans l'écoulement d'entrée de la pompe de vidange (9) et un deuxième dispositif de retenue de particules (34) distinct du premier dispositif de retenue de particules (33) et qui est disposé dans l'écoulement d'entrée de la pompe de recyclage (18),
    les deux dispositifs de retenue de particules (33, 34) étant associés à une même chambre de collecte de particules (35).
  15. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, comportant des moyens de commande de niveau (22) qui, pendant ladite étape de séchage :
    - prévoient ledit volume d'eau de refroidissement (20) de telle sorte que ladite surface d'eau libre (21) est laissée hors du volume de panier (5) ;
    - commandent le niveau d'eau de refroidissement (20) de telle sorte que, pendant l'étape de séchage, du fait de la formation du condensat, la surface d'eau libre (21) ne dépasse pas un niveau supérieur prédéterminé disposé au-dessous du panier (5).
  16. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, comportant des moyens de commande de température (23) qui, pendant ladite étape de séchage :
    - commandent la température du volume d'eau de refroidissement (20) de telle sorte que, pendant l'opération de séchage, du fait de l'échange thermique avec de l'écoulement d'air de séchage (15), la température du volume de l'eau (20) ne dépasse pas une valeur de température supérieure prédéterminée au-dessus de laquelle la différence de la température entre la surface de condensation (21) et l'écoulement d'air de séchage (15) n'est plus suffisante à des fins de condensation.
  17. Lave-linge/sèche-linge (1) selon la revendication 15 ou 16, dans lequel les moyens de commande de niveau (22, 23) sont configurés de façon à détecter une valeur indicative de la valeur d'eau de refroidissement (20) et à vider au moins partiellement l'eau de refroidissement (20) par l'intermédiaire du conduit de vidange (9), quand le niveau d'eau de refroidissement (20) dépasse ledit niveau supérieur.
  18. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications 3 à 5, dans lequel lesdits moyens de commande de niveau (22, 23) comportent un capteur de pression (22) disposé au niveau du fond de cuve (8).
  19. Lave-linge/sèche-linge (1) selon la revendication 15, dans lequel lesdits moyens de commande de niveau comportent des moyens de temporisation qui commandent la vidange d'au moins une partie du volume d'eau de refroidissement (20) et du condensat, à des intervalles de temps préétablis.
  20. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications 16 à 19, dans lequel lesdits moyens de commande de température (23) sont configurés de façon à détecter, pendant cette étape de séchage, la température ou une grandeur indicative de la température de l'eau de refroidissement (20) et pour vider au moins partiellement l'eau de refroidissement (20) et pour délivrer une quantité correspondante d'eau de distribution fraîche à la cuve de lavage (3), quand la température ou la grandeur indicative détectée dépasse une valeur correspondant à ladite valeur supérieure.
  21. Lave-linge/sèche-linge (1) selon la revendication précédente, dans lequel lesdits moyens de commande de température comportent un capteur de température (23) disposé à proximité du fond de cuve (8).
  22. Lave-linge/sèche-linge (1) selon la revendication précédente, dans lequel, en réponse à l'atteinte de ladite valeur de température supérieure, ledit capteur de température (23) génère un signal de température et l'envoie à l'unité de commande qui, à son tour, commande la pompe de vidange (10) et les électrovannes d'alimentation et amène ces dernières à :
    - au moins partiellement évacuer l'eau de refroidissement (20) et le condensat de la cuve de lavage (3) et,
    - ensuite, délivrer une quantité correspondante d'eau de distribution fraîche.
  23. Lave-linge/sèche-linge (1) selon la revendication 16, dans lequel lesdits moyens de commande de température comportent des moyens de temporisation qui commandent le remplacement d'au moins une partie de l'eau de refroidissement (20), à des intervalles de temps préétablis.
  24. Lave-linge/sèche-linge (1) selon l'une quelconque des revendications précédentes, dans lequel une unité de commande du lave-linge/sèche-linge (1) commande l'alimentation de la pompe de recyclage (18) de façon à réaliser le recyclage du volume de liquide supplémentaire (16) et le mélange de ce dernier avec le volume d'eau de refroidissement (20) dans la cuve de lavage (3) d'une manière continue ou d'une manière séquentielle pendant au moins une étape du programme de séchage.
  25. Lave-linge/sèche-linge (1) selon la revendication précédente, dans lequel l'unité de commande commande le chargement de l'eau de distribution, la vidange du liquide de refroidissement et du condensat, et le recyclage du volume de liquide supplémentaire, de façon à :
    - ne pas dépasser un niveau d'eau maximum déterminé dans le réservoir, ledit niveau d'eau maximum étant inférieur au côté inférieur du panier (5),
    - recycler une quantité d'eau qui, quand la pompe de recyclage est désactivée, augmenterait le niveau d'eau dans le réservoir au delà dudit côté inférieur du panier (5).
EP07425750.2A 2007-11-28 2007-11-28 Machine pour traiter le linge, particulièrement une machine à laver sèche-linge avec circuit de recirculation Active EP2065510B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL07425750T PL2065510T3 (pl) 2007-11-28 2007-11-28 Maszyna do obchodzenia się z praniem, zwłaszcza pralko-suszarka z obwodem recyrkulacyjnym
EP07425750.2A EP2065510B1 (fr) 2007-11-28 2007-11-28 Machine pour traiter le linge, particulièrement une machine à laver sèche-linge avec circuit de recirculation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425750.2A EP2065510B1 (fr) 2007-11-28 2007-11-28 Machine pour traiter le linge, particulièrement une machine à laver sèche-linge avec circuit de recirculation

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EP2065510A1 EP2065510A1 (fr) 2009-06-03
EP2065510B1 true EP2065510B1 (fr) 2014-05-07

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Publication number Priority date Publication date Assignee Title
EP2366828B1 (fr) * 2010-03-17 2017-11-15 Candy S.p.A. Sèche-linge doté d'un système de refroidissement du condensateur amélioré
KR20140084950A (ko) * 2012-12-27 2014-07-07 동부대우전자 주식회사 세탁기용 건조장치 및 건조방법
US10326325B2 (en) 2015-09-08 2019-06-18 Lg Electronics Inc. Rotor and motor including the same
CN107988771B (zh) * 2016-10-26 2021-08-31 博西华电器（江苏）有限公司 衣物烘干装置
DE102017103500A1 (de) * 2017-02-21 2018-08-23 Miele & Cie. Kg Verfahren zum Trocknen von Wäsche, Steuerverfahren und Steuervorrichtung zum Steuern eines Trocknungsvorgangs und Waschtrockner
DE102017103498A1 (de) * 2017-02-21 2018-08-23 Miele & Cie. Kg Verfahren zum Trocknen von Wäsche, Steuerverfahren und Steuervorrichtung zum Steuern eines Trocknungsvorgangs und wasserführendes Haushaltgerät zur Wäschebehandlung

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KR100955484B1 (ko) * 2003-04-30 2010-04-30 삼성전자주식회사 세탁기 및 그 건조 제어방법
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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PL2065510T3 (pl) 2015-04-30

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