EP2682513A1 - Wäschetrockner - Google Patents

Wäschetrockner Download PDF

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Publication number
EP2682513A1
EP2682513A1 EP12175274.5A EP12175274A EP2682513A1 EP 2682513 A1 EP2682513 A1 EP 2682513A1 EP 12175274 A EP12175274 A EP 12175274A EP 2682513 A1 EP2682513 A1 EP 2682513A1
Authority
EP
European Patent Office
Prior art keywords
air
vessel
filtering
filtering shell
structured
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.)
Withdrawn
Application number
EP12175274.5A
Other languages
English (en)
French (fr)
Inventor
Nicola Reid
Alberto Bison
Giuseppe Rossi
Calum Armstrong
Kim Michel
Gabriele Missio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP12175274.5A priority Critical patent/EP2682513A1/de
Priority to CN201380035917.9A priority patent/CN104487628B/zh
Priority to EP13734086.5A priority patent/EP2867401B1/de
Priority to PCT/EP2013/064184 priority patent/WO2014006156A1/en
Priority to AU2013285454A priority patent/AU2013285454A1/en
Priority to PL13734086T priority patent/PL2867401T3/pl
Priority to US14/590,178 priority patent/US20150176192A1/en
Publication of EP2682513A1 publication Critical patent/EP2682513A1/de
Withdrawn legal-status Critical Current

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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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements

Definitions

  • the present invention relates to a laundry dryer.
  • the present invention relates to a rotary-drum household laundry dryer to which the following description refers purely by way of example without implying any loss of generality.
  • rotary-drum household laundry dryers currently on the market generally comprise: a substantially parallelepiped-shaped, outer boxlike casing structured for resting on the floor; a substantially cylindrical rotatable drum which is structured for housing the laundry to be dried and which is housed in axially rotating manner inside the casing so to rotate about a substantially horizontally-oriented longitudinal reference axis, directly facing a laundry loading/unloading opening formed in the front wall of the casing; a porthole 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 rotatable drum; an electrically-powered motor assembly which is housed inside the casing and is structured for driving into rotation the rotatable drum about its longitudinal reference axis; a closed-circuit, hot-air generator which is housed inside the casing and is structured to circulate inside the rotatable drum a stream of hot air which has a very
  • the rotatable drum furthermore consists in a substantially cylindrical, rigid tubular body which is generally made of metal material and extends substantially horizontally inside the boxlike casing, locally aligned to the laundry loading/unloading opening.
  • This rigid tubular body may be furthermore structured for resting on a number of idle supporting rollers which are arranged at the two axial ends of the tubular body locally parallel to the drum longitudinal reference axis, and are fixed to the boxlike casing in free revolving manner so as to allow the tubular body to freely rotate about its horizontally-oriented longitudinal reference axis.
  • the circular front rim of the tubular body surrounds the laundry loading/unloading opening and is coupled in substantially airtight and axially rotating manner to the front wall of the boxlike casing; whereas the circular rear rim of the tubular body abuts against the rear wall of the boxlike casing and is coupled in substantially airtight and axially rotating manner directly to said rear wall.
  • the closed-circuit, hot-air generator in turn comprises: an air recirculating conduit which extends on the bottom of the boxlike casing and has a first end directly connected to a first air-vent realized in the rear wall of the boxlike casing, within the perimeter of the rear rim of the tubular body, and a second end directly connected to a second air-vent realized on the annular frame that delimits the laundry loading/ unloading opening on the front wall of the appliance casing; and an electrically-powered centrifugal fan which is located along the air recirculating conduit and is structured to produce an airflow which flows in closed loop through the air recirculating conduit and the rotatable drum.
  • the stream of hot air produced by the hot-air generator generally enters into the tubular body via the first air-vent realized in the rear wall of the boxlike casing, flows inside the tubular body for the entire length of the latter, and finally comes out of the tubular body via the second air-vent realized on the annular frame that delimits the laundry loading/unloading opening on the front wall of the casing.
  • the closed-circuit, hot-air generator furthermore comprises: an air-cooling device which is located along the air recirculating conduit, and is structured to cool the moist air arriving from the rotatable drum, so as to cause the condensation of the surplus moisture inside the airflow; an air-heating device which is located along the air recirculating conduit, downstream of the air-cooling device and which is structured for heating the dehumidified airflow arriving from the air-cooling device and directed back to the rotatable drum, so that the airflow directed back into the rotatable drum is heated to a temperature preferably, though not necessarily, higher than or equal to that of the moist air flowing out of the same rotatable drum.
  • the closed-circuit, hot-air generator is finally provided with an air-filtering member which is arranged along the air recirculating conduit, upstream of the air-cooling device, to prevent the fluff and/or lint particles from reaching and clogging up the air-cooling device, the air-heating device and the centrifugal fan.
  • the air-filtering member consists in a substantially wedge-shaped air-filtering cartridge which is fitted in removable manner into the air-vent realized on the annular frame that delimits the laundry loading/unloading opening on the front wall of the casing, so as to cover/close the whole air-vent.
  • the porthole door When the porthole door is in the wide-opened position, the user is allowed to manually extract the wedge-shaped filtering cartridge from the air-vent realized on the annular frame that delimits the laundry loading/unloading opening for periodical cleaning.
  • GB2116068 discloses a wedge-shaped air-filtering cartridge for laundry driers which is dimensioned for being inserted/plugged into the air-vent realized on the annular frame that delimits the laundry loading/unloading opening, so as to cover/close the whole air-vent, and which is structured to restrain the fluff and/or lint particles in suspension into the airflow.
  • This air-filtering cartridge basically consists in a substantially bag- or pocket-shaped rigid air-filtering shell which has a substantially V-shaped cross section and is dimensioned for being inserted/plugged into the air-vent realized on the annular frame that delimits the laundry loading/unloading opening, so as to cover/close the whole air-vent.
  • the bag-shaped rigid air-filtering shell is divided into two complementary valve-like pieces which are laterally hinged to one another at the bottom of the bag-or pocket-shaped air-filtering shell, so that the air-filtering shell is openable in a book-like manner; and each valve-like piece is provided with a substantially flat, large permeable-to-air sidewall which is structured to restrain the fluff and/or lint particles within the bag-shaped rigid shell.
  • each valve-like piece of the air-filtering shell is furthermore provided with an additional permeable-to-air panel or septum which is similarly structured to restrain the fluff and/or lint particles, and is laterally and permanently hinged to the upper edge of the valve-like piece that delimits the upper mouth of the bag- or pocket-shaped air-filtering shell, so as to be foldable towards the inside of the bag- or pocket-shaped air-filtering shell for covering the whole permeable-to-air sidewall of the same valve-like piece.
  • the DE8437357U1 air-filtering cartridge therefore implements a two-stage filtration of the airflow circulating into the laundry dryer.
  • the DE8437357U1 air-filtering cartridge is relatively complicated to open without randomly scattering the fluff and/or lint particles all around the air-filtering cartridge, and is therefore particularly unpleasant to the user.
  • the particular structure of the air-filtering cartridge forces the fluff and/or lint particles to accumulate on respective faces of the valve-like pieces and of the corresponding additional permeable-to-air panels, which respectively turn upwards and downwards, i.e. opposite to one another, when the air-filtering cartridge is wide opened in book-like manner on a horizontal plane.
  • Aim of the present invention is to provide a laundry dryer having an air-filtering cartridge which is easier to extract and clean.
  • a laundry dryer having an air-filtering cartridge as claimed in Claim 1 and preferably, though not necessarily, in any one of the dependent Claims.
  • reference number 1 indicates as a whole a rotary-drum household laundry dryer which comprises: a preferably, though not necessarily, parallelepiped-shaped, outer boxlike casing 2 which is structured for resting on the floor and is provided with reciprocally-faced, substantially vertically-oriented, front and rear walls 2a and 2b; a substantially cylindrical rotatable drum 3 which is structured for housing the laundry to be dried, and is fixed in axially rotating manner inside the boxlike casing 2, directly facing a laundry loading/unloading pass-through opening formed on the front wall 2a of casing 2; and a porthole door 4 hinged to the front wall 2a of casing 2 so to be able to rotate about a preferably, though not necessarily, vertically-oriented reference axis, to and from a closing position in which the porthole door 4 rests completely against the front wall 2a to close the laundry loading/unloading opening and substantially airtight seal the rotatable drum 3.
  • the laundry dryer 1 additionally comprises an electrically-powered motor assembly 5 which is structured for driving into rotation the rotatable drum 3 about the drum longitudinal reference axis; a closed-circuit, hot-air generator 6 which is structured to circulate through the rotatable drum 3 a stream of hot air having a low moisture level, and which flows over and rapidly dries the laundry located inside the drum 3; an electronic central control unit (not shown in the drawing) controls the motor assembly 5, the hot-air generator 6 to perform, on command, one of the user-selectable drying cycles preferably, though not necessarily, stored in the same central control unit, a further control unit 7 may be provided for controlling the operation of compressor 19.
  • an electrically-powered motor assembly 5 which is structured for driving into rotation the rotatable drum 3 about the drum longitudinal reference axis
  • a closed-circuit, hot-air generator 6 which is structured to circulate through the rotatable drum 3 a stream of hot air having a low moisture level, and which flows over and rapidly dries the laundry located inside the drum 3
  • the rotatable drum 3 preferably consists in a substantially cylindrical-shaped, rigid tubular body 3 which is preferably made of metal material and extends inside the boxlike casing 2 coaxial to a preferably substantially horizontally-oriented, longitudinal reference axis L while remaining locally substantially aligned to the laundry loading/unloading opening on the front wall 2a of the boxlike casing 2.
  • the substantially cylindrical-shaped, rigid tubular body 3 is furthermore preferably structured for resting on a number of idle supporting rollers 8 which are arranged approximately at the two axial ends of the tubular body 3 with their rotation axis locally substantially parallel to the longitudinal reference axis L of tubular body 3, and are fixed to the boxlike casing 2 in free revolving manner so as to allow the tubular body 3 to freely rotate about its longitudinal reference axis L inside the boxlike casing 2.
  • a drum supported by rotatable rollers it should be understood that the present invention covers also an arrangement wherein the drum is supported by a shaft mechanically connected to the drum rear wall, i.e. the wall opposite to the drum front wall which is provided with an opening for loading/unloading laundry into/from the drum. Said shaft is also provided to rotate the drum.
  • the circular front rim 3f of tubular body 3 surrounds the laundry loading/unloading opening realized on the front wall 2a of boxlike casing 2 and is coupled in substantially airtight and axially rotating manner to the same front wall 2a, preferably with the interposition of a first circular sealing gasket.
  • the circular rear rim 3r of tubular body 3 instead abuts against the rear wall 2b of boxlike casing 2 and is coupled in substantially airtight and axially rotating manner directly to the same rear wall 2b with the interposition of a second circular sealing gasket.
  • Front and rear circular sealing gaskets are therefore substantially coaxial to the longitudinal reference axis L of tubular body 3.
  • the stream of hot air produced by the hot-air generator 6 preferably enters into tubular body 3 through the rear mouth of tubular body 3, i.e. the mouth of tubular body 3 delimited by the rear rim 3r, flows inside tubular body 3 for the entire length of the latter, and finally comes out of tubular body 3 through the front mouth of tubular body 3, i.e. the mouth of tubular body 3 delimited by the front rim 3f.
  • the stream of hot air produced by hot-air generator 6 preferably enters into tubular body 3 via a first air-vent 9 which is incorporated in the rear wall 2b of casing 2 locally aligned/faced to the rear mouth of tubular body 3, i.e. within the perimeter of the rear rim 3r of tubular body 3, and comes out of tubular body 3 via a second preferably substantially slot-shaped, air-vent 10 which is preferably incorporated in the annular frame that, on front wall 2a, delimits the laundry loading/ unloading opening of boxlike casing 2.
  • the hot-air generator 6 in turn is structured for gradually drawing air from rotatable drum 3; cooling down the air arriving from rotatable drum 3 so to extract and retain the surplus moisture in the air drawn from rotatable drum 3; heating the dehumidified air to a predetermined temperature, normally higher than the temperature of the air from rotatable drum 3; and finally feeding the heated, dehumidified air back into the rotatable drum 3, where it flows over, to rapidly dry, the laundry inside the drum.
  • hot-air generator 6 provides for continually dehumidifying and heating the air circulating inside rotatable drum 3 to rapidly dry the laundry inside the drum, and basically comprises:
  • the hot-air generator 6 lastly comprises a preferably substantially wedge-shaped, air-filtering cartridge 15 which is fitted in removable manner into the air-vent 10 preferably realized on the annular frame that delimits, on front wall 2a, the laundry loading/unloading opening of casing 2.
  • This air-filtering cartridge 15 is dimensioned so as to cover/close the whole air-vent 10, i.e.
  • the entrance of the air recirculating conduit 11 is structured to restrain the fluff and/or lint particles in suspension into the airflow f so to prevent the same fluff and/or lint particles from reaching and clogging up the air-cooling device 13, the air-heating device 14 and the centrifugal fan 12 located along the air recirculating conduit 11.
  • the outer boxlike casing 2 preferably, though not necessarily, comprises a substantially parallelepiped-shaped lower supporting basement 16 which is structured for resting on the floor; and a substantially parallelepiped-shaped upper boxlike cabinet 17 which is rigidly fixed to the top of the lower supporting basement 16 and it is structured so as to house the rotatable drum 3.
  • the rotatable drum 3 extends inside the upper boxlike cabinet 17, immediately above the supporting basement 16; the laundry loading/unloading opening of boxlike casing 2 is realized in the front wall of the upper boxlike cabinet 17; and the porthole door 4 is hinged to the front wall of the same upper boxlike cabinet 17.
  • the lower supporting basement 16 in turn, is preferably, though not necessarily, structured for internally housing a central/intermediate section of the air recirculating conduit 11, and the air-cooling device 13, the air-heating device 14 and the centrifugal fan 12 of hot-air generator 6 are preferably located inside said central/intermediate section of the air recirculating conduit 11.
  • the lower supporting basement 16 is preferably, though not necessarily, structured for internally housing part of the hot-air generator 6.
  • the lower supporting basement 16 is moreover structured to directly support the drum-supporting rollers 8.
  • the idle rollers 8 that support in free revolving manner the tubular body 3 are preferably fixed in axially rotating manner directly to the top of the lower supporting basement 16.
  • the hot-air generator 6 furthermore preferably, though not necessarily, consists in a heat-pump type, closed-circuit, hot-air generator 6, and is therefore provided with a heat-pump circuit 18 which comprises a first and a second air/refrigerant heat exchanger, both located inside the air recirculating conduit 11 preferably upstream of the centrifugal fan 12.
  • the first air/refrigerant heat exchanger traditionally referred to as the "evaporator” of the heat-pump circuit 18, is located inside the air recirculating conduit 11, and it is structured to remove/ absorb heat from the airflow f arriving from rotatable drum 3, thus forming the air-cooling device 13 of the hot-air generator 6.
  • the second air/refrigerant heat exchanger traditionally referred to as the "condenser” of the heat-pump circuit 18, is instead located inside the air recirculating conduit 11 downstream of the first air/ refrigerant heat exchanger 13, and it is structured to release heat to the airflow f arriving from the first air/refrigerant heat exchanger 13, thus forming the air-heating device 14 of the hot-air generator 6.
  • first and second air/refrigerant heat exchangers 13 and 14 are recessed one after the other inside the central/intermediate section of air recirculating conduit 11 which is integrated into the lower supporting basement 16 of boxlike casing 2.
  • the heat-pump circuit 18 furthermore comprises: an electrically-powered refrigerant compressing device 19 which is interposed between the refrigerant-outlet of air/refrigerant heat exchanger 13 and the refrigerant-inlet of air/refrigerant heat exchanger 14, and it is structured for compressing the gaseous-state refrigerant directed towards heat exchanger 14 so that refrigerant pressure and temperature are much higher at the refrigerant-inlet of heat exchanger 14 than at the refrigerant-outlet of heat exchanger 13; and an expansion valve or similar known passive/operated refrigerant expansion device (for example a capillary tube, a thermostatic valve or an electrically-controlled expansion valve) which is interposed between the refrigerant-outlet of the air/refrigerant heat exchanger 14 and the refrigerant-inlet of the air/refrigerant heat exchanger 13, and it is structured so as to cause a rapid expansion of the refrigerant directed towards the air/ref
  • the hot air generator 6 may comprise an electric heater as air-heating device 14 and an air-air type heat exchanger as air-cooling device 13, where the airflow f is cooled by air taken from and exhausted to the environment surrounding the laundry machine.
  • An appropriate air pumping device is further arranged to pump ambient air through the air-air type heat exchanger.
  • the centrifugal fan 12 of hot-air generator 6, in turn, is preferably, though not necessarily, located on the back of the supporting basement 16, i.e. on the rear wall 2b of the boxlike casing 2, and it is structured so as to produce an airflow f that flows from the central/intermediate section of the air recirculating conduit 11 to the air-vent 9 located in rear wall 2b of casing 2.
  • the centrifugal fan 12 of the hot-air generator 6 is preferably at least partly housed/recessed into the lower supporting basement 16 of casing 2, i.e. into the rear wall 2b of the boxlike casing 2, roughly at the end of the central/intermediate section of the air recirculating conduit 11, and the outer volute or impeller housing of the centrifugal fan 12 is shaped/structured so as to directly communicate with, i.e. be fluidly connected to, both the central/ intermediate section of the air recirculating conduit 11 and the air-vent 9 integrated in the rear wall 2b of casing 2.
  • the air-filtering cartridge 15 in turn comprises:
  • the upper rim of the air-filtering shell or vessel 20 is preferably bent outwards so as to form an outwards projecting peripheral flange 21 which encircles the upper mouth of the air-filtering shell or vessel 20 and it is shaped/structured so as to rest in abutment on the border of the annular frame of front wall 2a that delimits the air-vent 10.
  • the upper mouth of the air-filtering shell or vessel 20 is furthermore preferably shaped/ structured so as to substantially mate the shape of the air-vent 10 realized on the annular frame that delimits, on front wall 2a, the laundry loading/unloading opening of the boxlike casing 2.
  • the air-filtering shell or vessel 20 is furthermore provided with two preferably substantially flat, reciprocally-faced, permeable-to-air sidewalls 22 which are structured to restrain the fluff and/or lint particles in suspension into the airflow f that crosses the air-vent 10.
  • the preferably substantially flat, reciprocally-faced, permeable-to-air sidewalls 22 of the air-filtering shell or vessel 20 are preferably substantially specularly inclined to the center-plane M of the air-filtering shell or vessel 20, so that the air-filtering shell or vessel 20 has a substantially V- or U-shaped cross-section.
  • the substantially bag- or pocket-shaped, air-filtering shell or vessel 20 is moreover divided into two complementary valve-like pieces 23 which are selectively separable to one another, and each valve-like piece 23 preferably incorporates a respective permeable-to-air sidewall 22 of the air-filtering shell or vessel 20.
  • the two valve-like pieces 23 are furthermore laterally hinged to one another preferably approximately at the bottom of the air-filtering shell or vessel 20, i.e.
  • transversal reference axis A preferably substantially parallel to the permeable-to-air sidewalls 22 of the air-filtering shell or vessel 20, so that the whole air-filtering shell or vessel 20 is openable in a book-like manner about reference axis A.
  • the two valve-like pieces 23 of the air-filtering shell or vessel 20 are preferably pivotally jointed to one another via a pair of connecting hinges 24 which are aligned to the reference axis A and are located approximately on the bottom of the air-filtering shell or vessel 20, i.e. opposite to the upper mouth of the air-filtering shell or vessel 20. Furthermore the articulation axis of the two connecting hinges 24, i.e. the rotation axis A of the two valve-like pieces 23, preferably substantially lies on the center-plane M of the air-filtering shell or vessel 20.
  • the air-filtering shell or vessel 20 is preferably finally provided with a snap-on locking mechanism 25 which is structured for selectively rigidly anchoring/fixing the two complementary valve-like pieces 23 of the air-filtering shell or vessel 20 to one another when the same valve-like pieces 23 are reciprocally coupled to form/compose the air-filtering shell or vessel 20, thus preventing any unintended opening of the air-filtering shell or vessel 20.
  • the upper rim of the second air-filtering shell or vessel 30 is preferably bent outwards so as to form an outwards projecting peripheral flange 31 which encircles the upper mouth the air-filtering shell or vessel 30 and is shaped/structured so as to rest in abutment on the outwards projecting peripheral flange 21 of the air-filtering shell or vessel 20.
  • the upper mouth of the second air-filtering shell or vessel 30 is furthermore preferably shaped/structured so as to substantially mate the shape of the upper mouth of the first air-filtering shell or vessel 20.
  • the second air-filtering shell or vessel 30 is preferably furthermore provided with two preferably substantially flat, reciprocally-faced, permeable-to-air main sidewalls 32 which are structured to restrain the fluff and/or lint particles in suspension into the airflow f that crosses the air-vent 10, and each of which is moreover locally faced and superimposed to a respective permeable-to-air sidewall 22 of the first air-filtering shell or vessel 20.
  • the preferably substantially flat, reciprocally-faced, permeable-to-air sidewalls 32 of the second air-filtering shell or vessel 30 are preferably substantially specularly inclined to the center-plane of the second air-filtering shell or vessel 30, so that the second air-filtering shell or vessel 30 has a substantially V- or U-shaped cross-section similar to that of the first air-filtering shell or vessel 20.
  • the center-plane of the second air-filtering shell or vessel 30 is furthermore locally substantially coincident to the center-plane M of the first air-filtering shell or vessel 20.
  • the substantially bag- or pocket-shaped, air-filtering shell or vessel 30 is moreover divided into two complementary valve-like pieces 33 which are selectively separable to one another, and each valve-like piece 33 preferably incorporates a respective permeable-to-air sidewall 32 of the air-filtering shell or vessel 30.
  • the two valve-like pieces 33 are furthermore laterally hinged to one another preferably approximately at the bottom of the second air-filtering shell or vessel 30, i.e.
  • transversal reference axis B preferably substantially parallel to the permeable-to-air sidewalls 32 of the second air-filtering shell or vessel 30, and therefore locally substantially parallel to rotation axis A of the valve-like pieces 23 of the first air-filtering shell or vessel 20, so that the whole second air-filtering shell or vessel 30 is openable in a book-like manner about reference axis B.
  • the two valve-like pieces 33 of the second air-filtering shell or vessel 30 are preferably pivotally jointed to one another via a pair of connecting hinges 34 which are aligned to the reference axis B and are located approximately on the bottom of the second air-filtering shell or vessel 30, i.e. opposite to the upper mouth of the air-filtering shell or vessel 30.
  • the articulation axis of the two connecting hinges 34 i.e. the rotation axis B of the two valve-like pieces 33, preferably substantially lies on the center-plane of the second air-filtering shell or vessel 30.
  • the air-filtering cartridge 15 preferably furthermore comprises a substantially platelike-shaped, permeable-to-air upper lid 35 which is rigidly associated/fixed to the top of the second air-filtering shell or vessel 30 so as to close the upper mouth of the same air-filtering shell or vessel 30, and which is furthermore preferably shaped/dimensioned so as to close/ cover the whole air-vent 10.
  • the permeable-to-air upper lid 35 is preferably rigidly associated/fixed to the outwards projecting peripheral flange 31 of the second air-filtering shell or vessel 30.
  • the permeable-to-air upper lid 35 is preferably divided into two preferably substantially platelike-shaped and permeable-to-air, complementary pieces 36 which are selectively separable to one another, and each of which is permanently rigidly fixed to a respective valve-like piece 33 of the second air-filtering shell or vessel 30, so as to allow the second air-filtering shell or vessel 30 to open in a book-like manner.
  • the permeable-to-air upper lid 35 furthermore comprises a manually-operated snap-on locking mechanism 37 which is structured for selectively rigidly anchoring/fixing the two complementary pieces 36 to one another when they are reciprocally coupled to form/compose the permeable-to-air upper lid 35, thus preventing any unintended opening of the second air-filtering shell or vessel 30.
  • a manually-operated snap-on locking mechanism 37 which is structured for selectively rigidly anchoring/fixing the two complementary pieces 36 to one another when they are reciprocally coupled to form/compose the permeable-to-air upper lid 35, thus preventing any unintended opening of the second air-filtering shell or vessel 30.
  • the snap-on locking mechanism 37 is preferably incorporated into the two complementary pieces 36 of the permeable-to-air upper lid 35. Furthermore each complementary piece 36 of the permeable-to-air upper lid 35 is preferably realized in one piece with a respective valve-like piece 33 of the second, substantially bag- or pocket-shaped, air-filtering shell or vessel 30.
  • the permeable-to-air upper lid 35 may be permanently rigidly associated/fixed to one of the two valve-like pieces 33 of the second air-filtering shell or vessel 20, and be structured for selectively coupling in a rigid and stable, though easily releasable manner to the edge of the other valve-like piece 33 of the second air-filtering shell or vessel 30, i.e. the portion of the outwards projecting peripheral flange 31 integral to the second/other valve-like piece 33 of the second air-filtering shell or vessel 30.
  • the permeable-to-air upper lid 35 is provided with a manually-graspable portion which is structured for allowing the user to manually extract the second air-filtering shell or vessel 30 from the first air-filtering shell or vessel 20.
  • a central portion of the permeable-to-air upper lid 35 is preferably provided with a couple of large pass-through holes 35a dimensioned for allowing the user to insert his/her fingers into the permeable-to-air upper lid 35.
  • the extraction-aid member of the air-filtering cartridge 15 in turn comprises at least one protruding tailpiece 26 which is shaped/structured for being manually graspable by the user, and which extends upwards from the upper rim of the air-filtering shell or vessel 20, i.e. from the peripheral flange 21 of the first air-filtering shell or vessel 20, so as to engage in pass-through manner a slot or indentation 31a realized on the peripheral flange 31 of the second air-filtering shell or vessel 30 and/or on the permeable-to-air upper lid 35, if present, and project upwards above the second air-filtering shell or vessel 30 or above the permeable-to-air upper lid 35, if present.
  • the extraction-aid member remains visible and slightly protrudes from the air vent 10 such that a user can see it and grasp it when the air-filtering cartridge 15 has to be removed, for example for cleaning operations.
  • the extraction-aid member of the air-filtering cartridge 15 consists in a preferably substantially flat, winglet or flap 26 that protrudes upwards from the upper edge of one of the two valve-like pieces 23 of the first air-filtering shell or vessel 20 locally parallel to rotation axis B, preferably approximately at the centre of the same upper edge.
  • the distal end of said winglet or flap 26 is preferably shaped/structured for being manually graspable by the user.
  • the air-filtering cartridge 15 comprises:
  • the upper rim of the air-filtering shell or vessel 120 is preferably bent outwards so as to form an outwards projecting peripheral flange 121 which encircles the upper mouth of the air-filtering shell or vessel 120 and it is shaped/structured so as to rest in abutment on the border of the annular frame of front wall 2a that delimits the air-vent 10.
  • the upper mouth of the air-filtering shell or vessel 120 is furthermore preferably shaped/structured so as to substantially mate the shape of the air-vent 10 realized on the annular frame that delimits, on front wall 2a, the laundry loading/unloading opening of the boxlike casing 2.
  • the air-filtering shell or vessel 120 is furthermore provided with two preferably substantially flat, reciprocally-faced, permeable-to-air sidewalls 122 which are structured to restrain the fluff and/or lint particles in suspension into the airflow f that crosses the air-vent 10.
  • the substantially flat, reciprocally-faced, permeable-to-air sidewalls 122 of the air-filtering shell or vessel 120 are preferably substantially specularly inclined to the center-plane N of the air-filtering shell or vessel 120, so that the air-filtering shell or vessel 120 has a substantially V- or U-shaped cross-section.
  • the substantially bag- or pocket-shaped, air-filtering shell or vessel 120 is moreover divided into two complementary valve-like pieces 123 which are selectively separable to one another, and each valve-like piece 123 preferably incorporates a respective permeable-to-air sidewall 122 of the air-filtering shell or vessel 120.
  • the two valve-like pieces 123 are furthermore laterally hinged to one another preferably approximately at the bottom of the air-filtering shell or vessel 120, i.e.
  • the two valve-like pieces 123 of the air-filtering shell or vessel 120 are preferably pivotally jointed to one another via a pair of connecting hinges 124 which are aligned to the reference axis C and are located approximately on the bottom of the air-filtering shell or vessel 120, i.e. opposite to the upper mouth of the air-filtering shell or vessel 120. Furthermore the articulation axis of the two connecting hinges 124, i.e. the rotation axis C of the two valve-like pieces 123, preferably substantially lies on the center-plane N of the air-filtering shell or vessel 120.
  • the air-filtering shell or vessel 120 is preferably finally provided with a snap-on locking mechanism 125 which is structured for selectively rigidly anchoring/fixing the two complementary valve-like pieces 123 of the air-filtering shell or vessel 120 to one another when the same valve-like pieces 123 are reciprocally coupled to form/compose the air-filtering shell or vessel 120, thus preventing any unintended opening of the air-filtering shell or vessel 120.
  • the upper rim of the second air-filtering shell or vessel 130 is preferably bent outwards so as to form an outwards projecting peripheral flange 131 which encircles the upper mouth the air-filtering shell or vessel 130 and is shaped/structured so as to rest in abutment on the outwards projecting peripheral flange 121 of the air-filtering shell or vessel 120.
  • the upper mouth of the second air-filtering shell or vessel 130 is furthermore preferably shaped/structured so as to substantially mate the shape of the upper mouth of the first air-filtering shell or vessel 120.
  • the second air-filtering shell or vessel 130 is preferably furthermore provided with two preferably substantially flat, reciprocally-faced, permeable-to-air main sidewalls 132 which are structured to restrain the fluff and/or lint particles in suspension into the airflow f that crosses the air-vent 10, and each of which is moreover locally faced and superimposed to a respective permeable-to-air sidewall 122 of the first air-filtering shell or vessel 120.
  • the substantially flat, reciprocally-faced, permeable-to-air sidewalls 132 of the second air-filtering shell or vessel 130 are preferably substantially specularly inclined to the center-plane of the second air-filtering shell or vessel 130, so that the second air-filtering shell or vessel 130 has a substantially V- or U-shaped cross-section similar to that of the first air-filtering shell or vessel 120.
  • the center-plane of the second air-filtering shell or vessel 130 is furthermore locally substantially coincident to the center-plane N of the first air-filtering shell or vessel 120.
  • the substantially bag- or pocket-shaped, air-filtering shell or vessel 130 is moreover divided into two complementary valve-like pieces 133 which are selectively separable to one another, and each valve-like piece 133 preferably incorporates a respective permeable-to-air sidewall 132 of the air-filtering shell or vessel 130.
  • the two valve-like pieces 133 are furthermore laterally hinged to one another preferably approximately at the bottom of the second air-filtering shell or vessel 130, i.e.
  • transversal reference axis D preferably substantially parallel to the permeable-to-air sidewalls 132 of the second air-filtering shell or vessel 130, and therefore locally substantially parallel to rotation axis C of the valve-like pieces 123 of the first air-filtering shell or vessel 120, so that the whole second air-filtering shell or vessel 130 is openable in a book-like manner about reference axis D.
  • the two valve-like pieces 133 of the second air-filtering shell or vessel 130 are preferably pivotally jointed to one another via a pair of connecting hinges 134 which are aligned to the reference axis D and are located approximately on the bottom of the second air-filtering shell or vessel 130, i.e. opposite to the upper mouth of the air-filtering shell or vessel 130.
  • the articulation axis of the two connecting hinges 134 i.e. the rotation axis D of the two valve-like pieces 133, preferably substantially lies on the center-plane of the second air-filtering shell or vessel 130.
  • the air-filtering cartridge 15 preferably furthermore comprises a substantially platelike-shaped, permeable-to-air upper lid 135 which is rigidly associated/fixed to the top of the second air-filtering shell or vessel 130 so as to close the upper mouth of the same air-filtering shell or vessel 130, and which is furthermore preferably shaped/dimensioned so as to close/ cover the whole air-vent 10.
  • the permeable-to-air upper lid 135 is preferably rigidly associated/fixed to the outwards projecting peripheral flange 131 of the second air-filtering shell or vessel 130.
  • the permeable-to-air upper lid 135 is preferably divided into two preferably substantially platelike-shaped and permeable-to-air, complementary pieces 136 which are selectively separable to one another, and each of which is permanently rigidly fixed to a respective valve-like piece 133 of the second air-filtering shell or vessel 130, so as to allow the second air-filtering shell or vessel 130 to open in a book-like manner.
  • the permeable-to-air upper lid 135 furthermore comprises a manually-operated snap-on locking mechanism 137 which is structured for selectively rigidly anchoring/fixing the two complementary pieces 136 to one another when they are reciprocally coupled to form/compose the permeable-to-air upper lid 135, thus preventing any unintended opening of the second air-filtering shell or vessel 130.
  • a manually-operated snap-on locking mechanism 137 which is structured for selectively rigidly anchoring/fixing the two complementary pieces 136 to one another when they are reciprocally coupled to form/compose the permeable-to-air upper lid 135, thus preventing any unintended opening of the second air-filtering shell or vessel 130.
  • the snap-on locking mechanism 137 is preferably incorporated into the two complementary pieces 136 of the permeable-to-air upper lid 135. Furthermore each complementary piece 136 of the permeable-to-air upper lid 135 is preferably realized in one piece with a respective valve-like piece 133 of the second, substantially bag- or pocket-shaped, air-filtering shell or vessel 130.
  • the permeable-to-air upper lid 135 may be permanently rigidly associated/fixed to one of the two valve-like pieces 133 of the second air-filtering shell or vessel 120, and be structured for selectively coupling in a rigid and stable, though easily releasable manner to the edge of the other valve-like piece 133 of the second air-filtering shell or vessel 130, i.e. the portion of the outwards projecting peripheral flange 131 integral to the second/other valve-like piece 133 of the second air-filtering shell or vessel 130.
  • the permeable-to-air upper lid 135 is provided with a manually-graspable portion which is structured for allowing the user to manually extract the second air-filtering shell or vessel 130 from the first air-filtering shell or vessel 120.
  • a central portion of the permeable-to-air upper lid 135 is preferably provided with a couple of large pass-through holes 135a dimensioned for allowing the user to insert his/her fingers into the permeable-to-air upper lid 135.
  • the extraction-aid member of the air-filtering cartridge 15 comprises at least one manually-operated coupling device 138 which is structured to selectively attach/fix the two air-filtering shells or vessels 120 and 130 to one another in a rigid and stable, though easily detachable manner.
  • the at least one manually-operated coupling device 138 is preferably fixed/associated to one of the two air-filtering shells or vessels 120 and 130 of the air-filtering cartridge 15, and it is structured to selectively hook and retain the remaining of the two air-filtering shells or vessels 120 and 130 so as to clamp/secure the two air-filtering shells or vessels 120 and 130 to one another in a rigid and stable, though easily detachable manner.
  • the manually-operated coupling device 138 is configured to be movable from a fastening position in which it clamps/secures the two air-filtering shells or vessels 120 and 130 to one another and a releasing position in which the coupling device 138 releases one of the air-filtering shells or vessels 120 and 130 from the other.
  • the manually-operated coupling device 138 is fixed/associated to the permeable-to-air upper lid 135 which, in turn, is rigidly fixed to the second air-filtering shell or vessel 130, and it is structure to selectively hook and retain the first air-filtering shell or vessel 120 so as to clamp/ secure the two air-filtering shells or vessels 120 and 130 to one another in a rigid and stable, though easily detachable manner.
  • the manually-operated coupling device 138 consists in a clipping arm 138 which is hinged to the upper lid 135 of the second air-filtering shell or vessel 130 so as to be able to rotate about a reference axis locally substantially tangent to the outer surface of the permeable-to-air upper lid 135 and preferably also parallel to the rotation axis D of the two valve-like pieces 133, between
  • the clipping arm 138 could be hinged to the upper rim of the air-filtering shell or vessel 120, i.e. to the peripheral flange 121 of the first air-filtering shell or vessel 120, and selectively clip on either the upper rim of the second air-filtering shell or vessel 130, i.e. to the peripheral flange 131 of the second air-filtering shell or vessel 130, or the permeable-to-air upper lid 135 rigidly fixed/associated to the second air-filtering shell or vessel 130.
  • the user has to grab with a hand the protruding tailpiece 26, i.e. the winglet or flap 26, and then pull it upwards to extract the two air-filtering shells or vessels 120 and 130 at a time from the air-vent 10.
  • the user has to leave the clipping arm 18 in the fastened position, grab with a hand the manually-graspable portion 135a of the permeable-to-air upper lid 135, and then pull it upwards to extract the two air-filtering shells or vessels 120 and 130 at a time from the air-vent 10.
  • the fluff and/or lint particles tends to accumulate/settle on the inner faces of the valve-like pieces 23, 33, 123, 133 of the first and second air-filtering shell or vessels 20, 120 and 30, 130.
  • the fluff and/or lint particles remains inside/above both first and second air-filtering shells or vessels 20, 120 and 30, 130 when the user disassembles/opens the air-filtering cartridge 15 for periodical cleaning, greatly simplifying such operation.
  • the air-cooling device 13 of hot-air generator 6 may comprise an air/air heat exchanger which is located inside the air recirculating conduit 11, preferably upstream of the centrifugal fan 12, and is structured for using the external fresh air to cool down the airflow f arriving from rotatable drum 3; whereas the air-heating device 14 of hot-air generator 6 may consists in a resistor which is located inside the air recirculating conduit 11, downstream of the air/air heat exchanger and preferably also downstream of centrifugal fan 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
EP12175274.5A 2012-07-06 2012-07-06 Wäschetrockner Withdrawn EP2682513A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP12175274.5A EP2682513A1 (de) 2012-07-06 2012-07-06 Wäschetrockner
CN201380035917.9A CN104487628B (zh) 2012-07-06 2013-07-04 衣物干燥机
EP13734086.5A EP2867401B1 (de) 2012-07-06 2013-07-04 Wäschetrockner
PCT/EP2013/064184 WO2014006156A1 (en) 2012-07-06 2013-07-04 Laundry dryer
AU2013285454A AU2013285454A1 (en) 2012-07-06 2013-07-04 Laundry dryer
PL13734086T PL2867401T3 (pl) 2012-07-06 2013-07-04 Suszarka pralnicza
US14/590,178 US20150176192A1 (en) 2012-07-06 2013-07-04 Laundry Dryer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12175274.5A EP2682513A1 (de) 2012-07-06 2012-07-06 Wäschetrockner

Publications (1)

Publication Number Publication Date
EP2682513A1 true EP2682513A1 (de) 2014-01-08

Family

ID=48746533

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Application Number Title Priority Date Filing Date
EP12175274.5A Withdrawn EP2682513A1 (de) 2012-07-06 2012-07-06 Wäschetrockner
EP13734086.5A Active EP2867401B1 (de) 2012-07-06 2013-07-04 Wäschetrockner

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP13734086.5A Active EP2867401B1 (de) 2012-07-06 2013-07-04 Wäschetrockner

Country Status (6)

Country Link
US (1) US20150176192A1 (de)
EP (2) EP2682513A1 (de)
CN (1) CN104487628B (de)
AU (1) AU2013285454A1 (de)
PL (1) PL2867401T3 (de)
WO (1) WO2014006156A1 (de)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN105696285A (zh) * 2014-12-12 2016-06-22 伊莱克斯家用电器股份公司 具有可移除绒毛过滤器单元的洗涤衣物干燥设备
US9487908B1 (en) * 2015-04-29 2016-11-08 Adam Roch Top access clothes dryer with motor-generator and catch pan
EP3118368A1 (de) * 2015-07-17 2017-01-18 Lg Electronics Inc. Wäschetrockner
CN114754553A (zh) * 2022-02-17 2022-07-15 上海汉虹精密机械有限公司 一种轴向多气流循环的烘干机
US11433341B2 (en) 2018-10-29 2022-09-06 Samsung Electronics Co., Ltd. Filter assembly and dryer for the same

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CN106192332B (zh) * 2015-04-30 2020-07-14 青岛海尔洗衣机有限公司 一种干衣机的线屑过滤装置及干衣机
KR102460252B1 (ko) * 2015-07-17 2022-10-27 엘지전자 주식회사 의류 건조기
DE102016213320A1 (de) * 2016-07-21 2018-01-25 BSH Hausgeräte GmbH Wäschebehandlungsgerät
EP3467187B1 (de) 2017-10-09 2021-12-22 Whirlpool Corporation Zur verwendung in einer maschine zum trocknen von wäsche konfigurierter filter und mit solch einem filter ausgestattete maschine zum trocknen von wäsche
CN113684656B (zh) * 2021-09-07 2024-06-07 海信冰箱有限公司 干衣机
WO2023029166A1 (zh) * 2021-08-30 2023-03-09 无锡小天鹅电器有限公司 过滤件、过滤装置和衣物处理装置

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DE8437357U1 (de) 1984-12-20 1985-03-21 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Haushalt-waeschetrockner mit einem flusenfilter
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GB2116068A (en) 1982-02-09 1983-09-21 Bauknecht Gmbh G Filter for a tumble drier
DE8437357U1 (de) 1984-12-20 1985-03-21 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Haushalt-waeschetrockner mit einem flusenfilter
EP0816549A2 (de) * 1996-06-26 1998-01-07 CANDY S.p.A. Haushalts-Wasch- und Trockenmaschine mit geschlossenem Trocknungskreislauf, Luftkondensation und selbstreinigendem Filter
US20070151120A1 (en) * 2005-12-30 2007-07-05 Tomasi Donald M Non-tumble clothes dryer
JP2008079855A (ja) * 2006-09-27 2008-04-10 Matsushita Electric Ind Co Ltd ドラム式洗濯乾燥機
EP2407588A1 (de) * 2010-07-16 2012-01-18 Electrolux Home Products Corporation N.V. Wäschetrockner mit einer Filterpatrone und Verfahren zur Herstellung einer solchen Patrone
KR20120019209A (ko) * 2010-08-25 2012-03-06 엘지전자 주식회사 건조장치
EP2458071A1 (de) * 2010-11-29 2012-05-30 Indesit Company S.p.A. Filter zum Filtern von Verunreinigungen in einem Trockner sowie Trockner damit
EP2392724A2 (de) * 2011-09-12 2011-12-07 V-Zug AG Haushaltsgerät, insbesondere Wäschetrockner, mit Filtereinrichtung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696285A (zh) * 2014-12-12 2016-06-22 伊莱克斯家用电器股份公司 具有可移除绒毛过滤器单元的洗涤衣物干燥设备
US9487908B1 (en) * 2015-04-29 2016-11-08 Adam Roch Top access clothes dryer with motor-generator and catch pan
EP3118368A1 (de) * 2015-07-17 2017-01-18 Lg Electronics Inc. Wäschetrockner
KR20170009656A (ko) * 2015-07-17 2017-01-25 엘지전자 주식회사 의류 건조기
US10047475B2 (en) 2015-07-17 2018-08-14 Lg Electronics Inc. Clothes dryer
AU2016295075B2 (en) * 2015-07-17 2019-07-25 Lg Electronics Inc. Clothes dryer
US11433341B2 (en) 2018-10-29 2022-09-06 Samsung Electronics Co., Ltd. Filter assembly and dryer for the same
CN114754553A (zh) * 2022-02-17 2022-07-15 上海汉虹精密机械有限公司 一种轴向多气流循环的烘干机
CN114754553B (zh) * 2022-02-17 2023-12-26 上海汉虹精密机械有限公司 一种轴向多气流循环的烘干机

Also Published As

Publication number Publication date
EP2867401B1 (de) 2017-01-11
AU2013285454A1 (en) 2015-01-29
US20150176192A1 (en) 2015-06-25
CN104487628A (zh) 2015-04-01
CN104487628B (zh) 2017-02-22
PL2867401T3 (pl) 2017-07-31
WO2014006156A1 (en) 2014-01-09
EP2867401A1 (de) 2015-05-06

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