EP2241663B1 - Machine à laver et sècher le linge et son procédé de fonctionnement - Google Patents

Machine à laver et sècher le linge et son procédé de fonctionnement Download PDF

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Publication number
EP2241663B1
EP2241663B1 EP09005345A EP09005345A EP2241663B1 EP 2241663 B1 EP2241663 B1 EP 2241663B1 EP 09005345 A EP09005345 A EP 09005345A EP 09005345 A EP09005345 A EP 09005345A EP 2241663 B1 EP2241663 B1 EP 2241663B1
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EP
European Patent Office
Prior art keywords
water
air
washing
drying
heat exchanger
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
EP09005345A
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German (de)
English (en)
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EP2241663A1 (fr
Inventor
Fabio Poloni
Flavio Rigo
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Electrolux Home Products Corp NV
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Electrolux Home Products Corp NV
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Priority to EP09005345A priority Critical patent/EP2241663B1/fr
Publication of EP2241663A1 publication Critical patent/EP2241663A1/fr
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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
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/20—Operation modes, e.g. delicate laundry washing programs, service modes or refreshment cycles
    • 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
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • 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
    • 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
    • D06F2105/50—Starting machine operation, e.g. delayed start or re-start after power cut
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/72—Control of the energy or water consumption
    • 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
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • 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 washing-drying machine and to a method for operating said machine.
  • a washer-dryer appliance is generally provided for performing articles washing and drying operations in a single machine.
  • a washing-drying machine comprises a drum for receiving articles to be treated, which is rotatably mounted within a tub.
  • a water circuit including pumping means is provided for allowing washing water to be supplied to and drained from said tub.
  • An air circuit having air circulating means and heating means, is provided for carrying out drying operation by circulating hot air through the drum.
  • Condensing means are further provided in said air circuit for removing moisture from drying air passing through articles to be treated thereby allowing said air to be re-circulated cyclically within the air circuit. Moisture removed from articles is either collected in a tank periodically emptied by a user or it is directly exhausted by a pipe connected to a waste water net,
  • said condensing means In washing-drying machines of known type, said condensing means generally comprise a box-like structure associated to the drying air circuit and a nozzle which is connected to a water supply for spraying said water against the drying air flow.
  • a drawback of such known machines consists in that droplets of water nebulized by condensing means nozzle through the moist air flow can be partly transported by the flow downwards the condensing means and, in particular, towards electrically powered heating means causing potential security risks.
  • a further drawback of the above cited type of known washing-drying machines consists in that condensing efficiency is low, and, in particular, lower than that of a drying machine provided with a condenser in the form of a heat exchanger wherein drying air is dehydrated by means of a fluid flow, i.e. a flow of air or water.
  • drying cycles may require a long time and a high power consuming to be carried out while drying results achieved may be poor.
  • FR 2 453 930 discloses one of said known drying machines having a first heat exchanger provided in the drying air circuit upstream the condensing unit for cooling said air flow before it enters such unit. Heat recovered in the first heat exchanger is conveyed back to the drying air flow by a second heat exchanger provided in the drying air circuit between the condensing unit and electrical heating means. First and second heat exchangers are connected by a common fluid path wherein a gaseous or liquid medium circulates in a closed loop for transferring heat from a part of the drying air circuit to another.
  • a drawback of a drying machine according to FR 2 453 930 consists in that its manufacture costs does not economically compensate energy savings that can be achieved with such machine. In addition, such machine is designed for carrying out only a drying process and it has no means for articles washing operations.
  • GB 2 287 961 , EP 1 302 586 and EP 1 584 729 disclose washing-drying machines wherein water can be supplied from a water/air heat exchanger to an article storing chamber for carrying out a washing process and vice versa for cooling said heat exchanger.
  • DE 40 09 102 discloses a method for operating a washing-drying machine having a water/air and an air/air heat exchangers arranged in parallel.
  • DE 10 2007 016077 discloses a heat pump type dryer wherein a sensor device is in signal communication with a control unit to regulate drying air heating means depending on refrigerant fluid condensation temperature.
  • the aim of the present invention is therefore to solve the noted drawbacks and thus providing a washing-drying machine having an improved energy efficiency.
  • An object of the present invention is not only to provide a washing-drying machine having a shorter drying time compared to known machines, but also a method for operating said machine that allows to save both water and energy during washing and drying operations.
  • Another object of the invention is to provide a washing-drying machine having higher safety.
  • a further object of the invention is to provide a washing-drying machine wherein washing and drying operational cycles are integrated for high energy recovery.
  • Another object of the invention is to provide a method for operating a washing-drying machine wherein condensing capacity of air moisture condensing means can be adjusted for achieving a desired drying efficiency and/or limiting energy consumption.
  • Figure 1 shows schematically a washing-drying machine according to the invention
  • Figure 2 shows a first embodiment of a condensing unit and drying air circuit of a washing-drying machine according to the invention
  • Figure 3 shows a second embodiment of a condensing unit and drying air circuit of a washing-drying machine according to the invention
  • a washing-drying machine 1 comprises an articles storing chamber 2 preferably in the form of a drum rotatably mounted within a tub 3.
  • a water circuit 4 comprises a first conduit 4A for supplying water drained from a water net, like a public water net, to storing chamber 2 and a second conduit 4B for exhausting water from said chamber 2.
  • Pumping means 5 is provided in water circuit 4 for circulating water within said circuit 4.
  • Heating means 6 are provided in the storing chamber 2 for heating water during an articles washing operation.
  • a first valve means 25 is mounted in the water circuit 4 for controlling water flow within the circuit 4.
  • washing-drying machine 1 comprises an air circuit 7 having a first conduit 7A in fluid communication with the articles storing chamber 2 for exhausting dying air passed through articles to be dried and for conveying said air, enriched in humidity, towards a condensing unit 8, indicated with dashed lines in Figure 1 , where air moisture is removed.
  • Air exiting the condensing unit 8 flows through a second conduit 7B connecting a condenser outlet port with an inlet port provided for allowing air to access the articles storing chamber 2.
  • Heating means 9 are provided in conduit 7B for heating air before it enters chamber 2.
  • Pumping means 10 such as a fan, is provided in the air circuit 7 for circulating drying air cyclically through the storing chamber 2. Moisture removed from drying air by the condensing unit 8 is collected in a reservoir 11.
  • said condensing unit 8 generally comprises a first heat exchanger 12 of water/air type, i.e. an exchanger wherein moist drying air is condensed by water-cooled means.
  • Heat exchanger 12 is therefore hydraulically connected to a water supply like a water tank of suitable capacity placed within the washer-drying machine 1 as will be diffusely described below.
  • Condensing unit 8 further comprises a second heat exchanger 13 of air/air type, i.e. an exchanger wherein moist drying air is condensed by air-cooled means. Cooling air is taken from the environment surrounding the machine 1 by means of a fan 14 and it is exhausted from the second heat exchanger 13 to the same environment.
  • First and second heat exchangers 12, 13 are connected in series relative to the drying air flow, such that one of them receives drying air exiting the other.
  • the position order of heat exchangers 12, 13 relative to the drying air flow can be the most appropriate according to the arrangement of operational components inside the machine.
  • One or more air filters 15 may be arranged in the drying air circuit 7, and preferably between the two heat exchangers 12, 13.
  • FIG 2 it is disclosed a first embodiment 108 of the condensing unit 8 and drying air circuit 7 illustrated in figure 1 .
  • the same reference numbers have been used for indicating features already depicted schematically in Figure 1 .
  • a condensing unit 108 is formed by a first heat exchanger 112 of water/air type comprising a plurality of conduits 16 wherein cooling water is circulated for removing a first amount of moisture from drying air conveyed by air circuit 7 to pass through interstices provided among said plurality of conduits 16.
  • the air circuit 7 comprises first and second conduits 7A, 7B in fluid communication with the articles storing chamber 2 ( Figure 1 ). Heating means 9 are provided in the second conduit 7B for heating the drying air flow. Condensed moisture is exhausted from the heat exchanger 112 by a water outlet port 17.
  • cooling water can be supplied from a pipe 27 hydraulically connected to a water tank 28 provided inside the machine 1 and periodically refilled either by water taken by said water net through a further pipe line 29 or by water recovered during a previous washing operation through a water recovering pipe line 40 ( Figure 1 ) allowing at least a part of water used within the washing chamber 2 to be conveyed to tank 28.
  • 112 cooling water may be re-circulated cyclically between the heat exchanger 12, 112 and the water tank 28 by means of pipes 27 and 30 forming with exchanger 12 and with tank 28 a hydraulic loop circuit.
  • An exhausting water conduit 45 is provided for periodically discharging cooling water from tank 28 so as to allow fresh water drained by a water net through pipe line 29 to fill tank 28.
  • Condensing unit 108 further comprises a second heat exchanger 113 of air/air type placed upstream relative to the first heat exchanger 112 such that drying air leaving the second heat exchanger 113 enters the first water/air heat exchanger 112. Cooling air taken from the environment surrounding the machine 1 is pumped to the heat exchanger 113 by a fan 14 while drying air flow moved within the air circuit 7 enters the heat exchanger 112. Cooling air flow and drying air flow cross each other without mixing so as to condense a second amount of moisture from drying air. Such amount of moisture is exhausted from the air/air heat exchanger 113 by a water outlet port 18. Air filtering means 15 are provided in the air circuit 7 between the heat exchangers 112, 113.
  • a further water recovery may be advantageously achieved by providing a further fluid line 21 hydraulically connected to water circuit 4, the heat exchanger 12, 112 and, by means of pipe 27, to water tank 28, the latter being refilled with cooling water which is either drained from a water net at the beginning of a drying cycle or recovered in a previous washing cycle and stored within tank 28. Said cooling water being re-circulated through the water/air heat exchanger 12, 112 during the drying cycle.
  • a pump 22 may be provided in fluid line 21 for leading cooling water used for condensing moisture of drying air in heat exchanger 12, 112 to the articles storing chamber 2 during washing operations following said drying cycle when water is needed for a washing or rinsing process, as it will be diffusely described hereafter. Pumps 19 and 22 may be the same, single pump, for both fluid lines 20, 21.
  • a third fluid line 40 hydraulically connects the articles storing chamber 2 to the water tank 28, via conduit 4B provided for exhausting water from said chamber 2 as shown in Figure 1 or, if desired, directly, i.e. by means of a dedicated pipe without involving conduit 4B.
  • the provision of conduit 40 is useful for conveying water used for one or more steps of a washing cycle to a storage means (tank 28) for a later use, in particular for being used during a drying process to cool condensing means 8. In this way, an amount of water can be used both for a washing process and for drying operations, thereby reducing the machine overall water consumption.
  • a filter unit 43 may be provided in the fluid line 40 in order to remove lint and/ or foreign matter from water drained from articles storing chamber 2.
  • Water recovery fluid lines 20, 21, 40 and main water circuit 4 are preferably provided with valve means 23, 24, 25, 41, 42 ( Figure 1 ) in signal communication with a process control unit 26 which is programmed for selecting, during washing operations, one of the available water supply lines 4, 20, 21 for providing water within the articles storing chamber 2 and for recovering an amount of said water by storing the latter in a storage means 28 for being used in a drying process following said washing operations.
  • Selection of water source and management of valve means 23, 24, 25, 41, 42, are made by unit 26 in accordance with the washing or drying program actually running in the machine 1.
  • Said process control unit 26 is also in signal communication with washing/drying program input means 44, such as a program selection knob, a keyboard, push-buttons and so on, for allowing a user to input a command and/or selecting washing/drying programs to be carried out on articles stored within chamber 2.
  • washing/drying program input means 44 such as a program selection knob, a keyboard, push-buttons and so on, for allowing a user to input a command and/or selecting washing/drying programs to be carried out on articles stored within chamber 2.
  • FIG 3 it is shown a second embodiment 208 of a condensing unit 8 and drying air circuit 7 illustrated in Figure 1 .
  • the same reference numbers have been used for indicating features already depicted in Figures 1 and 2 .
  • Condensing unit 208 differs from the first embodiment depicted in Figure 2 in that the water/air heat exchanger 212 comprises a nozzle 231 hydraulically connected with a water source, such as the water tank 28 shown in figure 1 , for nebulizing water against the drying air flowing within air circuit 7.
  • Water/air heat exchanger 212 is associated to portion 7A of air circuit 7, i.e. the portion receiving the moist air exiting articles drying chamber 2.
  • Fans 10 and 14 for circulating drying air and cooling air of the second air/air heat exchanger 113 respectively, heating means 9, filtering means 15 and the second heat exchanger 113 have the same features as those described with reference to Figure 2 .
  • water/air heat exchanger 212 is placed upstream relative to the second air/air heat exchanger 113.
  • Water recovery from condensed moisture and from cooling water of water/air heat exchanger 212 is arranged as described with reference to Figures 1 and 2 and it will not be described here again.
  • a desired washing program is selected by a user in a known manner, i.e. by way of input means 44 like a keyboard, a program selector knob and the like.
  • Other washing parameters like washing temperature, drum rotational speed during rinsing, overall washing time and the like may be input by a user, and further parameters may be acquired by appropriate sensors included in the machine like weight sensors, fabric types and the like (not illustrated).
  • control unit 26 checks whether water is present in reservoir 11 as result of moisture condensed in a previous drying cycle and further checks whether water is present within tank 28 as retained after a previous drying process or recovered in said tank 28 after a previous washing process.
  • process control unit 26 selects one or more of the available water sources (reservoir 11, tank 28, main water net connected through line 4 to the machine) for supplying water to the articles storing chamber (2). If no water is stored in reservoir 11 and in tank 28, unit 26 selects the main water net as water supply source. The part of the washing cycle and the water source are chosen by the process control unit 26 based on pre-programmed data stored within control unit 26. Said data associate possible combinations of user input parameters and of parameters automatically acquired by the machine with particular programs of recovered water introduction inside the article storing chamber 2.
  • process control unit 26 may establish in which part of the washing cycle and whether or not an amount of water is to be recovered in the water tank 28 instead of being exhausted through conduit 4B.
  • a suitable part of a washing cycle for recovering water used for treating articles in the chamber 2 may be the last rinsing operation. In the latter case, water recovered from rinsing is clean enough to be used for cooling a condenser unit 8, 108, 208 in a drying cycle subsequent to a washing process.
  • a filter unit 43 is provided in fluid line 40. In this way, dirty water may be filtered and used to cool the condenser 8, 108, 208 during a drying cycle, thereby avoiding to dirty it.
  • the process control unit 26 compares data input by a user when he/she chooses a washing program with data pre-programmed within control unit 26 so as to allow the latter to decide in which part of a chosen washing program water recovering can take place.
  • Water recovering is made by the process control unit 26 by activating pump 5, closing valve means 42 in conduit 4B and opening valve means 41 in conduit 40.
  • valve means 41 in conduit 40 is closed and valve means 42 in conduit 4B is opened so as to exhaust water further contained in the article storage chamber 2.
  • the process control unit 26 After the process control unit 26 has set the part of the washing cycle in which recovered water has to be introduced into the storing chamber 2, the water source through which this operation has to be carried out, and in which part of a chosen washing program water recovering for a later use can take place, the selected washing program is started.
  • a drying process in a washing-drying machine may be carried out using a recovered amount of water already used during a previous washing cycle and stored within tank 28 as described above.
  • a desired drying program is selected by a user by way of input means 44 and further parameters (for example humidity of articles in the storing chamber 2, articles weight, articles type and so on) may be acquired by appropriate sensors (not illustrated) included in the machine to instruct the process control unit 26 about articles physical condition at the beginning of a drying cycle.
  • control unit 26 compares said acquired parameters with data pre-programmed therein.
  • Process control unit 26 may also establish the sequence of activation of each heat exchanger 12, 112, 212 and 13, 113 and, particularly for the water/air heat exchanger 12, 112, 212, unit 26 may change cooling water source between tank 28, filled with water recovered by a previous washing process or retained therein after a preceding drying cycle, and water supplied to tank 28 by a main water net through pipe line 29.
  • Such change of cooling water source may be performed by process control unit 26 after that cooling water has been continuously re-circulated between the heat exchanger 12, 112, 212 and the water tank 28 by means of pipes 27 and 30.
  • cooling water progressively heats up, thereby reducing capacity of heat exchanger 12, 112, 212 to condensate moisture in drying air.
  • a temperature sensor (not shown) installed within tank 28 and in signal communication with process control unit 26 may be provided for communicating to such unit 26 that cooling water has reached a pre-determined hot temperature and, consequently, that efficiency of heat exchanger 12, 112, 212 is getting low.
  • tank 28 is emptied via conduit 45 and than refilled by pipe line 29 with fresh water from a main water net.
  • heat exchangers 12, 112, 212 and 13, 113 may be activated in any desired sequence, and each of them may work both continuously both intermittently during the whole drying process.
  • the process control unit 26 may adjust the working sequence of said heat exchangers in function of data provided by the monitoring operation.
  • a drying cycle started with both heat exchangers 12, 112, 212 and 13, 113 in an active state may be continued using only one of said heat exchangers, after that temperature of cooling water inside tank 28 reaches a pre-determined value.
  • process control unit 26 may deactivate water/air heat exchanger 12, 112, 212 by interrupting circulation of cooling water within water circuit 27, 30. If deactivation of the air/air heat exchanger 13, 113 is desired, process control unit 26 may turn off cooling air pumping means 14, leaving said heat exchanger 13, 113 passively passed through by drying air.
  • a washing-drying machine 1 has an improved energy efficiency.
  • a machine 1 is possible not only saving water during a washing process by using water recovered during a previous drying process but it is also possible to adjust the drying air moisture content very finely by deactivating one of the heat exchangers 12, 13; 112, 113; 212, 113. This can be done simply turning off air/air heat exchanger 13, 113 cooling air pumping means 14, and stopping cooling water supply to water/air heat exchanger 12, 112, 212 by means of a valve means installed in the pipe line 27 connecting heat exchanger 12, 112, 212 with water tank 28.

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

Claims (12)

  1. Machine à laver et sécher le linge comprenant :
    a. une chambre de stockage d'articles (2) ;
    b. un circuit d'eau (4) pour amener l'eau à la chambre (2), ledit circuit d'eau pouvant être raccordé à une alimentation d'eau ;
    c. un circuit d'air (7) pour faire circuler l'air de séchage à l'intérieur de ladite chambre (2), ledit circuit d'air (7) ayant des moyens de pompage (10), des moyens de chauffage (9) pour chauffer ledit air de séchage et des moyens de condensation (8, 108, 208) adaptés pour retirer l'humidité dudit air de séchage, lesdits moyens de condensation (8, 108, 208) comprenant un premier échangeur de chaleur qui est un échangeur de chaleur eau/air (12, 112, 212) raccordé de manière fluide audit circuit d'eau (4) par une première conduite de fluide (21) de sorte qu'au moins une partie de l'eau fournie pour refroidir le premier échangeur de chaleur (12, 112, 212) peut être amenée à l'intérieur de ladite chambre de stockage d'articles (2) pour des opérations de lavage, et/ou ladite chambre de stockage d'articles (2) est raccordée de manière hydraulique au premier échangeur de chaleur (12, 112, 212) par une conduite (40, 27) de sorte qu'au moins une partie de l'eau fournie pour les opérations de lavage peut être fournie pour refroidir ledit échangeur de chaleur (12, 112, 212),
    caractérisée en ce que les moyens de condensation (8, 108, 208) comprennent un second échangeur de chaleur qui est un échangeur de chaleur air/air (13, 113) raccordé en série avec le premier échangeur de chaleur (12, 112, 212) et un réservoir (11) qui est en communication fluidique à la fois avec le premier et le second échangeur de chaleur (12, 112, 212 ; 13, 113) et avec la chambre (2) par une seconde conduite de fluide (20) afin de permettre l'amenée de l'humidité condensée dans lesdits échangeurs de chaleur (12, 112, 212 ; 13, 113) à la chambre (2).
  2. Machine à laver et à sécher le linge selon la revendication 1, dans laquelle ledit échangeur de chaleur eau/air (12, 112, 212) est en communication fluidique avec un réservoir d'eau (28) au moyen d'un circuit de recirculation d'eau (27, 30).
  3. Machine à laver et à sécher le linge selon l'une quelconque des revendications précédentes, dans laquelle des moyens de valve (25, 23) sont prévus dans ledit circuit d'eau (4) et dans ladite première conduite de fluide (21) en communication de signal avec une unité de commande de traitement (26) programmée pour sélectionner une source d'eau afin d'amener l'eau à la chambre de stockage d'articles (2).
  4. Machine à laver et à sécher le linge selon la revendication 3, dans laquelle ladite unité de commande de traitement (26) est en communication de signal avec d'autres moyens de valve (24, 41) prévus respectivement dans ladite seconde conduite de fluide (20) et dans ladite conduite (40).
  5. Machine à laver et à sécher le linge selon l'une quelconque des revendications précédentes, dans laquelle ledit premier échangeur de chaleur eau/air (12, 112, 212) comprend une buse (231) hydrauliquement raccordée à une alimentation d'eau (28) pour pulvériser l'eau contre un écoulement d'air de séchage.
  6. Machine à laver et à sécher le linge selon la revendication 5, dans laquelle ledit premier échangeur de chaleur d'eau/air (12, 112, 212) est placé en amont par rapport au second échangeur de chaleur air/air (13, 113).
  7. Machine à laver et à sécher le linge selon l'une quelconque des revendications 1 à 4, dans laquelle ledit premier échangeur de chaleur eau/air (12, 112, 212) comprend une pluralité de conduits (16) pour faire circuler l'eau de refroidissement évacuée de l'alimentation d'eau (28), lesdits conduits (16) étant agencés à l'intérieur du circuit d'air (7) pour être investis par un écoulement d'air de séchage.
  8. Machine à laver et à sécher le linge selon la revendication 7, dans laquelle ledit premier échangeur de chaleur eau/air (12, 112, 212) est placé en aval par rapport au second échangeur de chaleur air/air (13, 113).
  9. Machine à laver et à sécher le linge selon l'une quelconque des revendications précédentes, dans laquelle ladite chambre de stockage d'articles (2) est montée à rotation à l'intérieur d'une cuve (3).
  10. Machine à laver et à sécher le linge selon l'une quelconque des revendications précédentes, dans laquelle des moyens de filtre à air (15) sont agencés dans ledit circuit d'air (7).
  11. Procédé pour laver des articles dans une machine à laver et à sécher le linge selon les revendications 1 à 10, ladite machine comprenant une chambre de stockage d'articles (2), des moyens d'entrée de programme de lavage (44), une unité de commande de traitement (26), une unité de condensation (8, 108, 208) prévue avec un échangeur de chaleur eau/air (12, 112, 212) et avec un échangeur de chaleur air/air (13, 113) et comprenant en outre un réservoir (11) et un bac (28) pour contenir l'eau évacuée de la chambre (2) pendant un traitement de lavage et à la fois du premier et du second échangeur de chaleur (12, 112, 212 ; 13, 113) pendant un traitement de séchage, ledit procédé comprenant les étapes suivantes consistant à :
    a) acquérir un programme de lavage entré par un utilisateur par lesdits moyens d'entrée (44) ;
    b) en réponse à l'entrée de l'utilisateur de l'étape a) et aux réponses acquises par les moyens de capteur :
    b1) ladite unité de commande vérifie si l'eau est présente dans le réservoir (11) et vérifie en outre si l'eau est présente à l'intérieur de la cuve (28) ;
    b2) actionner l'unité de commande de traitement (26) pour sélectionner une source d'eau (4, 11, 28) à amener dans ladite chambre (2) ;
    b3) actionner l'unité de commande de traitement (26) pour établir dans quelle partie du cycle de lavage et si une quantité d'eau doit être récupérée dans l'un desdits réservoirs (28) ;
    c) démarrer le procédé de lavage.
  12. Procédé pour sécher des articles dans une machine à laver et à sécher le linge selon les revendications 1 à 10, ladite machine comprenant une chambre de stockage d'articles (2), des moyens d'entrée de programme de séchage (44), des moyens de capteur pour acquérir l'état physique des articles au début d'un cycle de séchage, des moyens de condensation (8, 108, 208) qui comprennent un premier échangeur de chaleur qui est un échangeur de chaleur eau/air (12, 112, 212) et un second échangeur de chaleur qui est un échangeur de chaleur air/air (13, 113) prévu pour condenser l'humidité de l'écoulement d'air de séchage passant par la chambre (2), ledit procédé comprenant les étapes suivantes consistant à :
    a) acquérir un programme de séchage entré par un utilisateur par lesdits moyens d'entrée (44) ;
    b) actionner l'unité de commande de traitement (26) pour établir la séquence d'activation de chacun desdits premier et second échangeurs de chaleur (12, 112, 212 ; 13, 113) en réponse à l'entrée utilisateur de l'étape a) et/ou des données acquises par lesdits moyens de capteur ;
    c) démarrer le procédé de séchage ;
    d) vérifier l'état de séchage desdits articles et vérifier les paramètres de travail de chaque échangeur de chaleur (12, 112, 212 ; 13, 113) ;
    e) actionner l'unité de commande de traitement (26) pour ajuster ladite séquence d'activation desdits échangeurs de chaleur (12, 112, 212 ; 13, 113) en fonction des données fournies par l'opération de surveillance.
EP09005345A 2009-04-15 2009-04-15 Machine à laver et sècher le linge et son procédé de fonctionnement Active EP2241663B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09005345A EP2241663B1 (fr) 2009-04-15 2009-04-15 Machine à laver et sècher le linge et son procédé de fonctionnement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09005345A EP2241663B1 (fr) 2009-04-15 2009-04-15 Machine à laver et sècher le linge et son procédé de fonctionnement

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EP2241663A1 EP2241663A1 (fr) 2010-10-20
EP2241663B1 true EP2241663B1 (fr) 2013-03-20

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRN20110054A1 (it) * 2011-08-05 2013-02-06 Indesit Co Spa Elettrodomestico
ITPR20120005U1 (it) * 2012-10-08 2014-04-09 Indesit Co Spa Elettrodomestico di lavaggio e asciugatura di panni.
KR20140109119A (ko) * 2013-03-05 2014-09-15 삼성전자주식회사 세탁물 처리장치
WO2017137323A1 (fr) * 2016-02-08 2017-08-17 Arcelik Anonim Sirketi Machine à laver et sécher le linge comprenant un condenseur refroidi par air
EP3551027B8 (fr) * 2016-12-06 2021-04-28 Indelfab S.P.A. In Liquidazione Machine de séchage de vaisselle ou assimilé et procédé de séchage de vaisselle ou assimilé avec ladite machine
JP2023531774A (ja) * 2020-07-03 2023-07-25 エルジー エレクトロニクス インコーポレイティド 衣類処理装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914859C2 (de) 1979-04-12 1986-11-06 Bauknecht Hausgeräte GmbH, 7000 Stuttgart Wäschetrockner
IT1192085B (it) * 1986-06-26 1988-03-31 Zanussi Elettrodomestici Macchina combinata per il lavaggio e per l'asciugatura d biancheria
IT1201780B (it) * 1986-07-11 1989-02-02 Zanussi Elettrodomestici Macchina combinata per il lavaggio e l'asciugatura della biancheria
DE4009102A1 (de) 1990-03-21 1991-09-26 Licentia Gmbh Programmgesteuerter waschtrockner
IT1267712B1 (it) 1994-04-01 1997-02-07 Zanussi Elettrodomestici Lavabiancheria con serbatoio perfezionato di recupero dell'acqua
ITPN20010070A1 (it) 2001-10-10 2003-04-10 Electrolux Zanussi Elettrodome Macchina lavatrice-asciugatrice di biancheria
KR100617110B1 (ko) 2004-04-09 2006-08-31 엘지전자 주식회사 건조겸용 드럼세탁기
DE102007016077A1 (de) 2007-04-03 2008-10-09 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines Kondensationstrockners mit einem Wärmepumpenkreis, sowie entsprechender Kondensationstrockner

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