EP2527523B1 - Sèche-linge à tambour rotatif - Google Patents

Sèche-linge à tambour rotatif Download PDF

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Publication number
EP2527523B1
EP2527523B1 EP11167964.3A EP11167964A EP2527523B1 EP 2527523 B1 EP2527523 B1 EP 2527523B1 EP 11167964 A EP11167964 A EP 11167964A EP 2527523 B1 EP2527523 B1 EP 2527523B1
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EP
European Patent Office
Prior art keywords
air
drum
structured
shell
rotary
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Application number
EP11167964.3A
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German (de)
English (en)
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EP2527523A1 (fr
Inventor
Sergio Pillot
Alessandro Vian
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Electrolux Home Products Corp NV
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Electrolux Home Products Corp NV
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Priority to EP11167964.3A priority Critical patent/EP2527523B1/fr
Publication of EP2527523A1 publication Critical patent/EP2527523A1/fr
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Publication of EP2527523B1 publication Critical patent/EP2527523B1/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 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements

Definitions

  • the present invention relates to a rotary-drum laundry dryer.
  • the present invention relates to a rotary-drum home laundry dryer, to which the following description refers purely by way of example without implying any loss of generality.
  • today's rotary-drum home laundry dryers comprise: a substantially parallelepiped-shaped outer boxlike casing structured for resting on the floor; a substantially cylindrical revolving drum structured for housing the laundry to be dried, and which is housed in axially rotating manner inside the casing to rotate about its horizontally-oriented longitudinal axis, directly facing a laundry loading/unloading opening formed in the front wall of the casing; a door hinged to the front wall of the casing to rotate to and from a closing position in which the door rests completely against the front wall of the casing to close the laundry loading/unloading opening and airtight seal the revolving drum; and an electric motor assembly structured for driving into rotation the revolving drum about its longitudinal axis inside the casing.
  • Home laundry dryers of the above type are also provided with an open-circuit or closed-circuit, hot-air generator which is structured to circulate inside the revolving drum a stream of hot air having a low moisture content, and which flows through the revolving drum and over the laundry inside the drum to rapidly dry the laundry; and with an electronic central control unit which controls both the motor assembly and the hot-air generator to perform one of the user-selectable drying cycles stored in the same central control unit.
  • the hot-air generator is usually a closed-circuit, heat-pump type, hot-air generator that comprises: an air recirculating conduit having its two ends connected to the revolving drum, on opposite sides of the latter; an electrically-operated centrifugal fan located along the air recirculating conduit to produce, inside the latter, an airflow which flows through the revolving drum; and finally a heat-pump assembly having its two heat exchangers located one after the other, along the air recirculating conduit.
  • a rotary-drum laundry dryer with the features of the preamble is known from DE 10 2006 023 952 A1 .
  • EP-2034084 discloses a heat-pump type, rotary-drum home laundry dryer of the above type.
  • Aim of the present invention is to simplify the structure of today's laundry dryers, so to reduce the number of component parts and to simplify the airtight coupling of said component parts to reduce possible air leakages.
  • a rotary-drum laundry dryer comprising a revolving drum structured for housing the laundry to be dried, a hot-air generator structured to circulate a stream of hot air through said revolving drum, and a lower supporting base or socle which is structured for resting on the floor and for housing at least part of the hot-air generator;
  • the hot-air generator in turn comprising: an air recirculating conduit having its two ends connected to the revolving drum; air circulating means which are located along the air recirculating conduit and are structured to produce, inside the air recirculating conduit, an airflow which flows through the revolving drum and over the laundry inside the drum; and at least one heat exchanger located along the air recirculating conduit and structured to cool the moist air arriving from the rotatable drum so to cause the condensation of the surplus moisture inside the airflow;
  • the lower supporting base or socle comprising a lower half-shell structured for resting on the floor, and an upper half-shell stacked up on top of,
  • the rotary-drum laundry dryer is characterized in that the impeller housing further comprises a completely separated cover which is shaped/structured for being coupled to said first and second portions to cover the casing formed by said first and second portions.
  • the rotary-drum laundry dryer is characterized in that said first and second portions are shaped so as to form, when coupled to one another, a first approximately half-volute of the impeller housing.
  • the rotary-drum laundry dryer is characterized in that said completely separated cover forms the remaining and complementary second half-volute of the impeller housing of the air circulating means, and is structured for being coupled to the first half-volute formed by the first and second portion to complete the volute of the impeller housing.
  • the rotary-drum laundry dryer is characterized in that the impeller housing is located on the back of lower supporting base or socle, at an end-opening of said section of the air recirculating conduit.
  • the rotary-drum laundry dryer is characterized in that the first portion of the impeller housing protrudes from the lower half-shell, and that the second portion of the impeller housing protrudes from the upper half-shell.
  • the rotary-drum laundry dryer is characterized in that the first portion of the impeller housing sticks out of the lower half-shell more than the second portion of the impeller housing sticks out of the upper half-shell.
  • the rotary-drum laundry dryer is characterized in that the first and/or the second portion of the impeller housing is dimensioned to cover more than 50% of the nominal high of the impeller vanes.
  • the rotary-drum laundry dryer is characterized by also comprising an electric motor assembly which is mechanically connected to the revolving drum for rotating said drum about its longitudinal axis; and in that the impeller of said air circulating means is mechanically connected to said electric motor assembly so to be driven into rotation by the latter.
  • the rotary-drum laundry dryer is characterized in that the lower half-shell and the upper half-shell are structured so that said section of the air recirculating conduit is substantially L-shaped; a first portion of the central section of the air recirculating conduit being locally substantially parallel to the longitudinal axis of the revolving drum; and in that the air circulating means are located at the end of the second transversal portion of said section of the air recirculating conduit, with the impeller locally aligned to the electric motor assembly.
  • the rotary-drum laundry dryer is characterized in that the air circulating means also comprise a substantially funnel-shaped, intake manifold which is located at the end-opening of said section of the air recirculating conduit, and extends within the impeller housing towards the impeller.
  • the rotary-drum laundry dryer is characterized in that said intake manifold consists in a substantially frustoconical sleeve which is provided with an outwards projecting peripheral flange all-around the larger mouth, and in that said peripheral flange is structured to fit into two corresponding coplanar semicircular grooves realized one in the lower half-shell, and the other in the upper half-shell.
  • the rotary-drum laundry dryer is characterized by also comprising an upper boxlike cabinet which is rigidly fixed to the top of the lower supporting base or socle and is structured so to house the revolving drum.
  • the rotary-drum laundry dryer is characterized in that the longitudinal axis of the revolving drum is substantially horizontally-oriented, and in that the revolving drum rests on a number of supporting rollers which are arranged substantially at the two axial ends of the revolving drum, and are fixed in free revolving manner directly to the top of the upper half-shell.
  • the rotary-drum laundry dryer is characterized in that the hot-air generator is a heat-pump type, hot-air generator which comprises: a first air/refrigerant heat exchanger which is located inside the central section of the air recirculating conduit, and is structured for rapidly cooling down the airflow arriving from the revolving drum to condense and restrain the surplus moisture in the airflow; a second air/refrigerant heat exchanger which is located inside the central section of the air recirculating conduit, downstream of the first air/refrigerant heat exchanger, and which is structured for rapidly heating the airflow arriving from the first air/ refrigerant heat exchanger and directed back to the revolving drum; a refrigerant compressing device which is interposed between the refrigerant-outlet of the first air/ refrigerant heat exchanger and the refrigerant-inlet of the second air/refrigerant heat exchanger, and which is structured for compressing the gaseous-state refrigerant directed
  • the rotary-drum laundry dryer is characterized in that the lower half-shell and the upper half-shell are both realized in plastic material preferably via an injection molding process.
  • a rotary-drum laundry dryer comprising an outer casing structured for resting on the floor, a revolving drum structured for housing the laundry to be dried and which is fixed in axially rotating manner inside the casing, and a hot-air generator which is located inside the outer casing and is structured to circulate a stream of hot air through said revolving drum;
  • the hot-air generator in turn comprising: an air recirculating conduit having its two ends connected to the revolving drum on opposite sides of the latter; air circulating means which are located along the air recirculating conduit and are structured to produce, inside the air recirculating conduit, an airflow which flows through the revolving drum and over the laundry inside the drum; and a heat exchanger which is located along the air recirculating conduit and is structured to rapidly cool the moist air arriving from the revolving drum so to cause the condensation of the surplus moisture inside the airflow;
  • the outer boxlike casing instead comprising: a lower supporting base or socle which is structured for resting on
  • the rotary-drum laundry dryer is characterized in that the impeller housing further comprises a completely separated, cap-shaped cover which is shaped/structured for being coupled to said first and second portions to completely cover and seal the substantially circular, basin-shaped casing formed by said first and second portions.
  • the rotary-drum laundry dryer is characterized in that said first and second shell are shaped to form a first approximately half-volute of the impeller housing.
  • the rotary-drum laundry dryer is characterized in that the said completely separated, cap-shaped cover forms the remaining and complementary second half-volute of the impeller housing of the air circulating means, and is structured for being coupled to the first half-volute formed by the first and second portion to complete the volute of the impeller housing.
  • the rotary-drum laundry dryer is characterized in that the first portion of the impeller housing protrudes from the lower half-shell, and that the second portion of the impeller housing protrudes from the upper half-shell.
  • the rotary-drum laundry dryer is characterized in that the first portion of the impeller housing sticks out of the lower half-shell more than the second portion of the impeller housing sticks out of the upper half-shell.
  • the rotary-drum laundry dryer is characterized in that the first portion of the impeller housing is dimensioned to cover more than 50% of the nominal high of the impeller vanes.
  • the rotary-drum laundry dryer is characterized by also comprising, inside the casing, an electric motor assembly which is mechanically connected to the revolving drum for rotating said drum about its longitudinal axis; and in that the impeller of the air circulating means is mechanically connected to said electric motor assembly so to be driven into rotation by the latter.
  • the rotary-drum laundry dryer is characterized in that the lower half-shell and the upper half-shell are structured so that the central section of the air recirculating conduit is substantially L-shaped; in that the electric motor is fixed on the lower supporting base or socle beside a first portion of the central section of the air recirculating conduit locally substantially parallel to the longitudinal axis of the revolving drum; and in that the air circulating means are located at the end of the second transversal portion of the central section of the air recirculating conduit, with the impeller locally aligned to the electric motor assembly.
  • the rotary-drum laundry dryer is characterized in that the air circulating means also comprise a substantially funnel-shaped, intake manifold which is located at the end-opening of the central section of the air recirculating conduit, and extends within the impeller housing towards the impeller.
  • the rotary-drum laundry dryer is characterized in that said intake manifold consists in a substantially frustoconical sleeve which is provided with an outwards projecting peripheral flange all-around the larger mouth, and in that said peripheral flange is structured to fit into two corresponding coplanar semicircular grooves realized one in the lower half-shell, and the other in the upper half-shell.
  • the rotary-drum laundry dryer is characterized in that longitudinal axis of the revolving drum is substantially horizontally-oriented, and in that the revolving drum rests on a number of idle supporting rollers which are arranged substantially at the two axial ends of the revolving drum, and are fixed in free revolving manner directly to the top of the upper half-shell.
  • the rotary-drum laundry dryer is characterized in that the hot-air generator is a heat-pump type, hot-air generator which comprises: a first air/refrigerant heat exchanger which is located inside the central section of the air recirculating conduit, and is structured for rapidly cooling down the airflow arriving from the revolving drum to condense and restrain the surplus moisture in the airflow; a second air/refrigerant heat exchanger which is located inside the central section of the air recirculating conduit, downstream of the first air/refrigerant heat exchanger, and which is structured for rapidly heating the airflow arriving from the first air/ refrigerant heat exchanger and directed back to the revolving drum; a refrigerant compressing device which is interposed between the refrigerant-outlet of the first air/ refrigerant heat exchanger and the refrigerant-inlet of the second air/refrigerant heat exchanger, and which is structured for compressing the gaseous-state refrigerant directed
  • the rotary-drum laundry dryer is characterized in that the refrigerant compressing device and the refrigerant expansion device are fixed directly onto the lower half-shell of the supporting base or socle, beside the central section of the air recirculating conduit.
  • the rotary-drum laundry dryer is characterized in that the lower half-shell and the upper half-shell are both realized in plastic material preferably via an injection molding process.
  • number 1 indicates as a whole a preferably household, rotary-drum laundry dryer which comprises:
  • the rotary-drum laundry dryer 1 additionally comprises an electric motor 5 which is mechanically connected to the revolving drum 3 for driving into rotation the drum 3 about its longitudinal axis; a closed-circuit, hot-air generator 6 which is structured to circulate through the revolving drum 3 a stream of hot air having a low moisture level, and which flows over and rapidly dries the laundry located inside drum 3; and finally an electronic central control unit 7 which controls both the electric motor 5 and the hot-air generator 6 to perform one of the user-selectable drying cycles preferably, though not necessarily, stored in the same central control unit 7.
  • the outer boxlike casing 2 comprises a substantially parallelepiped-shaped lower supporting base or socle 9 which is structured for resting on the floor and for housing at least part of the hot-air generator 6; and a substantially parallelepiped-shaped upper boxlike cabinet 10 which is rigidly fixed to the top of the lower supporting base or socle 9 and it is structured so as to house the revolving drum 3.
  • the revolving drum 3 preferably extends inside the boxlike cabinet 10 coaxial to a substantially horizontally-oriented longitudinal reference axis L, and rests on a number of substantially horizontally-oriented, front and rear idle supporting rollers 11 which are located in pairs substantially at the two axial ends of the revolving drum 3, and are fixed in free revolving manner to the casing 2 so as to allow the revolving drum 3 to freely rotate about its reference axis L inside the boxlike cabinet 10.
  • front and rear idle supporting rollers 11 are preferably fixed in free revolving manner directly to the top of the lower supporting base or socle 9.
  • the laundry loading/unloading opening of casing 2 is therefore realized in the front wall of the upper boxlike cabinet 10, and the porthole door 4 is hinged to the front wall of the aforesaid upper boxlike cabinet 10.
  • the lower supporting base or socle 9 is also preferably structured so to directly support the electric motor 5.
  • the closed-circuit, hot-air generator 6 instead preferably comprises of a heat-pump type, hot-air generator 6 which is structured for gradually drawing air from revolving drum 3; rapidly cooling down the air arriving from revolving drum 3 so to extract and retain the surplus moisture in the air drawn from revolving drum 3; rapidly heating the dehumidified air to a predetermined temperature, normally higher than the temperature of the air from revolving drum 3; and finally feeding the heated, dehumidified air back into the revolving drum 3, where it flows over the laundry inside the drum to rapidly dry said laundry.
  • a heat-pump type, hot-air generator 6 which is structured for gradually drawing air from revolving drum 3; rapidly cooling down the air arriving from revolving drum 3 so to extract and retain the surplus moisture in the air drawn from revolving drum 3; rapidly heating the dehumidified air to a predetermined temperature, normally higher than the temperature of the air from revolving drum 3; and finally feeding the heated, dehumidified air back into
  • hot-air generator 6 provides for continually dehumidifying and heating the air circulating inside revolving drum 3 to rapidly dry the laundry inside the drum, and basically comprises:
  • the heat-pump assembly 14 comprises:
  • the air/refrigerant heat exchanger 15 is conventionally referred to as the "evaporator” or “gas-heater” of the heat-pump assembly 14, and it is structured so that the airflow f arriving from revolving drum 3 and the low-pressure and low-temperature refrigerant directed to the suction of the refrigerant compressing device 17 can flow through it simultaneously, allowing the refrigerant having a temperature lower than that of the airflow f, to absorb heat from the airflow f, thus causing condensation of the surplus moisture in the airflow f arriving from revolving drum 3.
  • the air/refrigerant heat exchanger 16 in turn, is conventionally referred to as the "condenser” or “gas-cooler” of the heat-pump assembly 14, and it is structured so that the airflow f directed back into revolving drum 3 and the high-pressure and high-temperature refrigerant arriving from the delivery of the refrigerant compressing device 17 can flow through it simultaneously, allowing the refrigerant having a temperature greater than that of the airflow f to release heat to the airflow f, thus rapidly heating the airflow f directed back into the revolving drum 3.
  • the lower supporting base or socle 9 of outer casing 2 is formed by a lower half-hulk or half-shell 9a which is structured for resting on the floor; and by an upper half-hulk or half-shell 9b which is structured for being stacked up on top of, and rigidly coupled to, the lower half-hulk 9a, so to preferably directly support the parallelepiped-shaped upper boxlike cabinet 10 and preferably also the front and rear idle rollers 11 that support in free revolving manner the revolving drum 3.
  • the lower half-hulk 9a and the upper half-hulk 9b are structured so as to form, when coupled to one another, a substantially horizontally-oriented central section of the air recirculating conduit 12 that is shaped so as to house both the evaporator 15 and the condenser 16 of the heat-pump assembly 14 one after the other along the flowing direction of the airflow f.
  • the lower half-hulk 9a and upper half-hulk 9b are shaped so as to form the two halves of the substantially horizontally-oriented central section of the air recirculating conduit 12, and are structured so to be substantially airtight coupled one another to compose/form the aforesaid central section of the air recirculating conduit 12 that houses the evaporator 15 and the condenser 16 of the heat-pump assembly 14.
  • both the lower half-hulk 9a and the upper half-hulk 9b are preferably, though not necessarily, realized in plastic material by means of an injection molding process.
  • the electric refrigerant compressing device 17 and the refrigerant expansion device are preferably fixed/recessed directly onto the lower half-hulk 9a of the supporting base or socle 9, beside the aforesaid central section of the air recirculating conduit 12, preferably together with the electric motor 5; whereas the centrifugal fan 13 of hot-air generator 6 is located on the back of the lower supporting base or socle 9 formed by the two half-hulks 9a and 9b, at the end-opening or outlet of the central section of the air recirculating conduit 12.
  • the centrifugal fan 13 of hot-air generator 6 protrudes/juts out of the lower supporting base or socle 9 and is preferably, though not necessarily, arranged on the back of the lower supporting base or socle 9 so to be locally aligned to electric motor 5.
  • the lower half-hulk 9a and the upper half-hulk 9b are preferably, though not necessarily, structured so that the central section of the air recirculating conduit 12 is substantially L-shaped, and is oriented so that a first portion of the central section of the air recirculating conduit 12 extends below the revolving drum 3 remaining locally substantially parallel to the longitudinal axis L of revolving drum 3, and that a second transversal portion of the central section of the air recirculating conduit 12 extends below the revolving drum 3 remaining locally substantially perpendicular to the longitudinal axis L of drum 3.
  • the evaporator 15 and the condenser 16 of the heat-pump assembly 14 are located, one downstream the other, inside the first portion of the aforesaid central section of the air recirculating conduit 12; whereas the refrigerant compressing device 17 and electric motor 5 are aligned one after the other in a direction locally parallel to the longitudinal axis L of revolving drum 3, beside the first portion of the central section of the air recirculating conduit 12.
  • the centrifugal fan 13 is instead located on the back of the lower supporting base or socle 9, at the end-opening or outlet of the second portion of the central section of the air recirculating conduit 12, preferably locally aligned to the drive shaft 5a of electric motor 5.
  • the centrifugal fan 13 of hot-air generator 6 comprises an outer housing or impeller housing 18 which is located on the back of the lower supporting base or socle 9, at the end-opening of the central section of the air recirculating conduit 12, so to directly communicate with, i.e. to be fluidly connected to, the end-opening of the aforesaid central section of the air recirculating conduit 12, and also with the inside of revolving drum 3; and an impeller 19 which is housed in axially rotating manner inside the outer housing 18 to generate the airflow f when rotating about its reference axis.
  • the impeller 19 is preferably, though not necessarily, rigidly fitted to one of the two axial ends of the drive shaft 5a of electric motor 5 so to be directly driven into rotation by the latter.
  • the outer housing 18 of centrifugal fan 13 comprises a first portion 18a realized in one piece with the lower half-hulk 9a, and a second portion 18b realized in one piece with the upper half-hulk 9b, and these first and second portions 18a and 19b are shaped/structured for being substantially airtight coupled to one another so as to form a substantially circular, basin-shaped casing that at least partly surrounds and covers/encompasses the impeller vanes 19a.
  • the outer housing 18 further comprises a completely separated, rigid cap-shaped cover 18c which is shaped/structured for being substantially airtight coupled to the first and second portions 18a and 19b to completely cover and seal the substantially circular, basin-shaped casing formed by the aforesaid first and second portions 18a and 19b.
  • the outer housing 18 of centrifugal fan 13 is spitted into three distinct and separated shells 18a, 18b and 18c which are structured for being substantially airtight coupled to one another to form the volute of the outer housing 18.
  • the first shell 18a and the second shell 18b are realized in one piece, respectively, with the lower half-hulk 9a and with the upper half-hulk 9b, so to be integral with the lower supporting base or socle 9, and are shaped to form a first approximately half-volute of the outer housing 18.
  • the third shell 18c instead consists in a completely separated cap-shaped, rigid cover 18c that forms the remaining, complementary second half-volute of the outer housing 18 of centrifugal fan 13, and which is structured for being substantially airtight coupled to the first half-volute formed by the shells 18a and 18b to complete the outer housing 18 of the centrifugal fan 13.
  • the first shell or portion 18a preferably protrudes from the lower half-hulk 9a
  • the second shell or portion 18b preferably protrudes from the upper half-hulk 9b.
  • the nominal high h a of the first shell or portion 18a is preferably greater than the nominal high h b of the second shell or portion 18b.
  • the first shell or portion 18a of outer housing 18 sticks out of the lower half-hulk 9a more than the second shell or portion 18b of outer housing 18 sticks out of the upper half-hulk 9b.
  • the nominal high h a of the first shell or portion 18a is preferably greater than 50% of the nominal high of the impeller vanes 19a.
  • the nominal high h b of the second shell or portion 18b could be preferably greater than 50% of the nominal high of the impeller vanes 19a
  • the centrifugal fan 13 is preferably, though not necessarily, additionally provided with a substantially funnel-shaped, air intake manifold 20 which is located at the end-opening of the central section of the air recirculating conduit 12, and extends inside the outer housing 18 of centrifugal fan 13 towards the impeller 19 while remaining substantially coaxial with the rotation axis of impeller 19.
  • the intake manifold 20 consists in a substantially frustoconical sleeve 20 which is provided with an outwards projecting peripheral flange 20a all-around the larger mouth.
  • This peripheral flange 20a is structured to fit into two corresponding coplanar semicircular grooves realized one in the lower half-hulk 9a and the other in the upper half-hulk 9b, so to trap and firmly fix the sleeve 20 between the lower half-hulk 9a and the upper half-hulk 9b when said half-hulks 9a and 9b are coupled to one another to form the lower supporting base or socle 9 and the central section of the air recirculating conduit 12.
  • the partial integration of the outer housing or volute 18 of the centrifugal fan 13 into the two-pieces lower supporting base or socle 9 allows to significantly reduce the number of component parts while improving the coupling between said component parts.
  • hot-air generator 6 may consist of a forced-air, hot-air generator in which the cooling of the airflow f arriving from the revolving drum 3 is performed via a cold airflow arriving from the outside of casing 2.
  • the hot-air generator 6 lacks the evaporator 15, the condenser 16, the refrigerant compressing device 17 and the refrigerant expansion device, and instead comprises: an air/air heat exchanger which is located along the central section of the air recirculating conduit 12, in place of the evaporator 15; and a resistor or similar air-heating device which is located along the air recirculating conduit 12, downstream of said air/air heat exchanger.
  • the air/air heat exchanger is structured for being crossed, at the same time, by the airflow f arriving from revolving drum 3 and by a stream of cold air arriving from outside the casing 2, thus allowing the stream of external cold air to absorb heat from the airflow f for causing the condensation of the surplus moisture in the airflow f arriving from revolving drum 3; whereas the resistor is structured for rapidly heating up the dehumidified air directed back into the revolving drum 3.

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

Claims (15)

  1. Sèche-linge à tambour rotatif (1) comprenant un tambour tournant (3) structuré pour recevoir le linge à sécher, un générateur d'air chaud (6) structuré pour faire circuler un courant d'air chaud à travers ledit tambour tournant (3) et une base ou un socle de support inférieur (9) qui est structuré pour reposer sur le sol et pour recevoir au moins une partie du générateur d'air chaud (6) ;
    le générateur d'air chaud (6) à son tour comprenant :
    une conduite de recirculation d'air (12) ayant ses deux extrémités reliées au tambour tournant (3) ; un moyen de circulation d'air (13) qui est situé le long de la conduite de recirculation d'air (12) et est structuré pour produire, à l'intérieur de la conduite de recirculation d'air (12), un flux d'air (f) qui s'écoule à travers le tambour tournant (3) et sur le linge à l'intérieur du tambour (3) ;
    et au moins un échangeur thermique (15) situé le long de la conduite de recirculation d'air (12) et structuré pour refroidir l'air humide arrivant depuis le tambour rotatif (3) de manière à produire la condensation de l'humidité en surplus à l'intérieur du flux d'air (f) ;
    la base ou le socle de support inférieur (9) comprenant une demi-coque inférieure (9a) structurée pour reposer sur le sol et une demi-coque supérieure (9b) empilée sur le dessus de, et couplée de manière rigide à, ladite demi-coque inférieure (9a) ; lesdites demi-coque inférieure (9a) et demi-coque supérieure (9b) étant façonnées de manière à former, lorsqu'elles sont couplées l'une à l'autre, une section de la conduite de recirculation d'air (12) qui reçoit au moins l'échangeur thermique (15) dudit générateur d'air chaud (6) ;
    le moyen de circulation d'air (13) du générateur d'air chaud (6) comprenant un logement de rotor (18) qui communique avec ladite section de la conduite de recirculation d'air (12) et un rotor (19) qui est reçu d'une manière à rotation axiale à l'intérieur du logement de rotor (18) pour générer le flux d'air (f) ;
    le sèche-linge (1) étant caractérisé par le fait que le logement de rotor (18) du moyen de circulation d'air (13) comprend une première partie (18a) réalisée d'un seul tenant avec la demi-coque inférieure (9a), et une seconde partie (18b) réalisée d'un seul tenant avec la demi-coque supérieure (9b) ; et par le fait que ladite première partie (18a) et ladite seconde partie (18b) sont structurées pour être couplées l'une à l'autre de manière à former un boîtier sensiblement circulaire (18a, 18b) qui recouvre au moins partiellement les aubes de rotor (19a).
  2. Sèche-linge à tambour rotatif selon la revendication 1, caractérisé par le fait que le logement de rotor (18) comprend en outre un couvercle complètement séparé (18c) qui est façonné/structuré pour être couplé auxdites première (18a) et seconde (18b) parties pour recouvrir le boîtier formé par lesdites première et seconde parties (18a, 18b).
  3. Sèche-linge à tambour rotatif selon la revendication 1 ou 2, caractérisé par le fait que lesdites première (18a) et seconde (18b) parties sont façonnées de manière à former, lorsqu'elles sont couplées l'une à l'autre, une première approximativement demi-volute du logement de rotor (18).
  4. Sèche-linge à tambour rotatif selon la revendication 3, caractérisé par le fait que ledit couvercle complètement séparé (18c) forme la seconde demi-volute restante et complémentaire du logement de rotor (18) du moyen de circulation d'air (13), et est structuré pour être couplé à la première demi-volute formée par les première (18a) et seconde (18b) parties pour compléter la volute du logement de rotor (18).
  5. Sèche-linge à tambour rotatif selon l'une quelconque des revendications précédentes, caractérisé par le fait que le logement de rotor (18) est situé sur l'arrière de la base ou du socle de support inférieur (9), au niveau d'une ouverture d'extrémité de ladite section de la conduite de recirculation d'air (12).
  6. Sèche-linge à tambour rotatif selon l'une quelconque des revendications précédentes, caractérisé par le fait que la première partie (18a) du logement de rotor (18) fait saillie de la demi-coque inférieure (9a), et par le fait que la seconde partie (18b) du logement de rotor (18) fait saillie de la demi-coque supérieure (9b).
  7. Sèche-linge à tambour rotatif selon la revendication 6, caractérisé par le fait que la première partie (18a) du logement de rotor (18) fait saillie de la demi-coque inférieure (9a) plus que la seconde partie (18b) du logement d'hélice (18) ne fait saillie de la demi-coque supérieure (9b).
  8. Sèche-linge à tambour rotatif selon l'une quelconque des revendications précédentes, caractérisé par le fait que la première (18a) et/ou la seconde (18b) partie du logement de rotor (18) est dimensionnée pour recouvrir plus de 50 % de la hauteur nominale des aubes de rotor (19a) .
  9. Sèche-linge à tambour rotatif selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'il comprend également un ensemble moteur électrique (5) qui est mécaniquement relié au tambour tournant (3) pour entraîner en rotation ledit tambour (3) autour de son axe longitudinal (L) ; et par le fait que le rotor (19) dudit moyen de circulation d'air (13) est mécaniquement relié audit ensemble moteur électrique (5) de manière à être entraîné en rotation par ce dernier.
  10. Sèche-linge à tambour rotatif selon la revendication 9, caractérisé par le fait que la demi-coque inférieure (9a) et la demi-coque supérieure (9b) sont structurées de telle sorte que ladite section de la conduite de recirculation d'air (12) est sensiblement en forme de L ; une première partie de la section centrale de la conduite de recirculation d'air (12) étant localement sensiblement parallèle à l'axe longitudinal (L) du tambour tournant (3) ; et par le fait que le moyen de circulation d'air (13) est situé au niveau de l'extrémité de la seconde partie transversale de ladite section de la conduite de recirculation d'air (12), avec le rotor (19) localement aligné par rapport à l'ensemble moteur électrique (5).
  11. Sèche-linge à tambour rotatif selon l'une quelconque des revendications précédentes, caractérisé par le fait que le moyen circulation d'air (13) comprend également un collecteur d'admission (20), en forme d'entonnoir, qui est situé au niveau de l'ouverture d'extrémité de ladite section de la conduite de recirculation d'air (12) et s'étend à l'intérieur du logement de rotor (18) vers le rotor (19).
  12. Sèche-linge à tambour rotatif selon la revendication 11, caractérisé par le fait que ledit collecteur d'admission (20) est constitué par un manchon sensiblement tronconique (20) qui comporte une bride périphérique se projetant vers l'extérieur (20a) tout autour de l'embouchure plus grande, et par le fait que ladite bride périphérique (20a) est structurée pour s'ajuster dans deux rainures semi-circulaires coplanaires correspondantes réalisées l'une dans la demi-coque inférieure (9a) et l'autre dans la demi-coque supérieure (9b).
  13. Sèche-linge à tambour rotatif selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'il comprend également une armoire (10) supérieure de type boîte qui est fixée de manière rigide sur le dessus de la base ou du socle de support inférieur (9) et est structurée de manière à recevoir le tambour tournant (3).
  14. Sèche-linge à tambour rotatif selon la revendication 13, caractérisé par le fait que l'axe longitudinal (L) du tambour tournant (3) est sensiblement orienté horizontalement et par le fait que le tambour tournant (3) repose sur un nombre de rouleaux de support (11) qui sont agencés sensiblement au niveau des deux extrémités axiales du tambour tournant (3), et sont fixés d'une manière à rotation libre directement sur le dessus de la demi-coque supérieure (9b).
  15. Sèche-linge à tambour rotatif selon l'une quelconque des revendications précédentes, caractérisé par le fait que le générateur d'air chaud (6) est un générateur d'air chaud (6), de type pompe à chaleur qui comprend : un premier échangeur thermique air/fluide frigorigène (15) qui est situé à l'intérieur de la section centrale de la conduite de recirculation d'air (12), et est structuré pour refroidir de manière rapide du flux d'air (f) arrivant depuis le tambour tournant (3) pour condenser et restreindre l'humidité en surplus dans le flux d'air (f) ; un second échangeur thermique air/fluide frigorigène (16) qui est situé à l'intérieur de la section centrale de la conduite de recirculation d'air (12), en aval du premier échangeur thermique air/fluide frigorigène (15) et qui est structuré pour chauffer de manière rapide le flux d'air (f) arrivant depuis le premier échangeur thermique air/fluide frigorigène (15) et dirigé en retour vers le tambour tournant (3) ; un dispositif de compression de fluide frigorigène (17) qui est interposé entre la sortie de fluide frigorigène du premier échangeur thermique air/fluide frigorigène (15) et l'entrée de fluide frigorigène du second échangeur thermique air/fluide frigorigène (16) et qui est structuré pour comprimer du fluide frigorigène à l'état gazeux dirigé vers le second échangeur thermique air/fluide frigorigène (16) ; et un dispositif de dilatation de fluide frigorigène qui est interposé entre la sortie de fluide frigorigène du second échangeur thermique air/fluide frigorigène (16) et l'entrée de fluide frigorigène du premier échangeur thermique air/fluide frigorigène (15) et est structuré de manière à produire une dilatation rapide du fluide frigorigène dirigé vers le premier échangeur thermique air/fluide frigorigène (15).
EP11167964.3A 2011-05-27 2011-05-27 Sèche-linge à tambour rotatif Active EP2527523B1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11053632B2 (en) 2019-07-12 2021-07-06 Haier Us Appliance Solutions, Inc. Dryer appliance and impeller housing

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2843115B1 (fr) * 2013-08-27 2018-05-16 Electrolux Appliances Aktiebolag Sèche-linge à tambour rotatif
EP2843114B1 (fr) * 2013-08-27 2018-05-02 Electrolux Appliances Aktiebolag Sèche-linge à tambour rotatif
EP2843116A1 (fr) * 2013-08-27 2015-03-04 Electrolux Appliances Aktiebolag Sèche-linge à tambour rotatif
EP2843117A1 (fr) * 2013-08-27 2015-03-04 Electrolux Appliances Aktiebolag Sèche-linge à tambour rotatif
CN106087364A (zh) * 2016-07-29 2016-11-09 无锡小天鹅股份有限公司 热泵式干衣机和用于热泵式干衣机的底座组件

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KR101180532B1 (ko) * 2005-05-23 2012-09-06 엘지전자 주식회사 응축수 저장 구조가 구비된 의류 건조기
DE102005013053A1 (de) * 2005-05-23 2006-11-30 BSH Bosch und Siemens Hausgeräte GmbH Kondensations-Wäschetrockner
DE202006018205U1 (de) 2006-11-06 2007-02-15 V-Zug Ag Wäschetrockner mit Zusatzwärmetauscher
KR20090115015A (ko) * 2008-04-30 2009-11-04 엘지전자 주식회사 의류처리장치
KR20100034077A (ko) * 2008-09-23 2010-04-01 삼성전자주식회사 의류건조기

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11053632B2 (en) 2019-07-12 2021-07-06 Haier Us Appliance Solutions, Inc. Dryer appliance and impeller housing

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