EP2527529B1 - Sèche-linge - Google Patents

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Publication number
EP2527529B1
EP2527529B1 EP11167986.6A EP11167986A EP2527529B1 EP 2527529 B1 EP2527529 B1 EP 2527529B1 EP 11167986 A EP11167986 A EP 11167986A EP 2527529 B1 EP2527529 B1 EP 2527529B1
Authority
EP
European Patent Office
Prior art keywords
laundry dryer
opening
handle
inner door
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11167986.6A
Other languages
German (de)
English (en)
Other versions
EP2527529A1 (fr
Inventor
Marco Costantin
Marco Santarossa
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.)
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Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP11167986.6A priority Critical patent/EP2527529B1/fr
Publication of EP2527529A1 publication Critical patent/EP2527529A1/fr
Application granted granted Critical
Publication of EP2527529B1 publication Critical patent/EP2527529B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • 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 laundry dryer.
  • the present invention relates to a drum home laundry dryer, to which the following description refers purely by way of example without implying any loss of generality.
  • a drum home laundry dryer normally comprises a substantially parallelepiped-shaped outer boxlike casing structured for resting on the floor; a substantially cylindrical drum, which is structured for housing the laundry to be dried, and which is fixed inside the outer casing, directly facing a laundry loading/unloading opening formed in the front wall of the outer casing itself, to rotate about its substantially horizontally-oriented longitudinal axis, a porthole door hinged to the front wall of the outer casing to rotate from and to a closing position in which the porthole door rests against the front wall to close the laundry loading/unloading opening and airtight seal the drum; and an electric motor for driving into rotation the drum about the aforesaid longitudinal axis.
  • a laundry dryer of such a known type is also provided with an open-circuit or closed-circuit, hot-air generator which is structured to circulate, in use, inside the drum a stream of hot air having a low moisture content, to rapidly dry the laundry disposed inside the drum itself; and with an electronic central control unit which controls both the motor assembly and the hot-air generator during the performing 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 circulating conduit having its two ends connected to respective opposite sides of the drum; an electric centrifugal fan located along the air circulating conduit to produce, inside the latter, an airflow which flows through the drum; a heat-pump assembly, having its two heat exchangers located one after the other, along the air circulating conduit; and finally a manually-removable filtering element, which is fixed in correspondence of an inlet of the air circulating conduit located upstream of the two heat exchangers, and which is structured to stop lint carried by the drying air flow upstream of the two heat exchangers and of the centrifugal fan.
  • EP-2034084 discloses a drum home laundry dryer having a closed-circuit, heat-pump type, hot-air generator.
  • Document EP 2 196 578 A1 shows a laundry dryer (1) comprising a casing (2) containing a rotatable drum (3) for holding the laundry (4) to be dried, and a drying air circuit (5) for conveying a drying air flow towards the inside of the drum (3), from the drum (3) to a removable condenser (8) contained in a seat (6) provided in said laundry dryer (1), and again into said drum (3).
  • One or more movable elements (25) are provided, associated to the condenser (8), movable between an active position, in which the one or more movable elements (25) are able to engage stopping means (29), provided on the laundry dryer (1), for avoiding or limiting the insertion of the condenser (8) into the seat (6), and an idle position, in which the one or more movable elements (25) allow a free insertion of the condenser (8) into the seat (6), the one or more movable elements (25) being arranged to be displaced in the active position by the gravity force when the condenser (8) is oriented in a prefixed wrong position.
  • Aim of the present invention is to improve the structure of a laundry dryer of the known type above described so to ensure and simplify the maintenance of the filtering member and guarantee the efficiency of the hot-air generator.
  • number 1 indicates as a whole a household drum laundry dryer which comprises:
  • the laundry dryer additionally comprises an electric motor 5, which is mechanically connected to the drum 3 for driving, in use, into rotation the drum 3 about its longitudinal axis; a closed-circuit, hot-air generator 6 which is structured to circulate in use, through the drum 3 a stream of hot air having a low moisture level to rapidly dry the laundry located inside drum 3 itself; and finally an electronic central control unit 7 which controls both the electric motor 5 and the hot-air generator 6 while performing the user-selectable drying cycles preferably, though not necessarily, stored in the same central control unit 7.
  • the 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 box-like body 10 which is rigidly connected to the top of the socle 9 and it houses the drum 3.
  • the mentioned laundry loading/unloading opening is realized in the front wall of the body 10, and the porthole door 4 is hinged to the front wall itself, and the drum 3 is disposed inside the body 10 coaxial to a substantially horizontally-oriented longitudinal axis L, and rests on four supporting rollers 11 which are located in pairs in correspondence of respective axial front and rear ends of the drum 3, and are fixed to the casing 2 in a free revolving manner about the respective longitudinal axes, therefore allowing the drum to freely rotate about the axis L.
  • the front and rear supporting rollers 11 are preferably fixed directly on a portion of the top of the socle 9, which is preferably structured to also directly support the electric motor 5.
  • the closed-circuit, hot-air generator 6 preferably consists in a heat-pump type, hot-air generator 6 which is structured for drawing air from drum 3, rapidly cooling down the air arriving from drum 3 so to extract and retain the surplus moisture in the air itself; rapidly heating the dehumidified air to a predetermined temperature; and finally feeding the heated, dehumidified air back into the drum 3, to dry the laundry contained therein.
  • the hot-air generator 6 provides for continually dehumidifying and heating the air circulating through drum 3 to rapidly dry the laundry, and comprises:
  • the heat-pump assembly 14 comprises:
  • the heat exchanger 15 is conventionally referred to as the "evaporator" of the heat-pump assembly 14, and is structured so that the airflow f arriving from drum 3 and the low-pressure and low-temperature refrigerant directed to the suction inlet of the compressing device 17 can flow through it simultaneously, allowing the refrigerant, which has a temperature lower than that of the airflow f , to absorb heat from the airflow f itself, thus causing condensation of the surplus moisture in the airflow f arriving from drum 3.
  • the heat exchanger 16 in turn, is conventionally referred to as the "condenser" of the heat-pump assembly 14, and it is structured so that the airflow f exiting the heat exchanger and directed back into drum 3 and the high-pressure and high-temperature refrigerant arriving from the delivery of the 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 determining the rapid heating of airflow f entering drum 3.
  • an inlet portion 12i of the air circulating conduit 12 is integrated in the peripheral frame of body 10 delimiting the laundry loading/unloading opening, and the porthole door 4, when arranged in the closing position, abuts on this peripheral frame so as to substantially airtight seal the laundry loading/unloading opening and at the same time put the inlet portion 12i in direct communication with the inside of drum 3.
  • a central/intermediate portion 12c of the air circulating conduit 12 is disposed through socle 9, and is shaped/dimensioned so as to house, one downstream the other along the flowing direction of the airflow f , both the evaporator 15 and the condenser 16 of the heat-pump assembly 14.
  • the central portion 12c of air circulating conduit 12 extends inside the socle 9 in a substantially horizontal direction.
  • the fun 13 is preferably located outside of the socle 9, preferably correspondingly to one of the end-openings of the central portion 12c so to directly communicate with both the central portion 12c itself and the inside of drum 3.
  • the fan 13 is preferably located on the back of the socle 9, at the exit end of the central portion 12c of the air circulating conduit 12, i.e. downstream of both the evaporator 15 and the condenser 16.
  • the closed-circuit, hot-air generator 6 furthermore comprises a filtering assembly 18 which is located along the air circulating conduit 12, upstream of the evaporator 15, and is structured so as to stop lint carried by the air flow from the drum 3 upstream of both the evaporator 15 and the condenser 16; and a rigid, protective grid-like assembly 19 which is firmly and preferably also removably fixed inside the central portion 12c of the air circulating conduit 12, downstream of the filtering assembly 18 and immediately upstream of the evaporator 15, so as to bar through the central portion 12c of the air circulating conduit 12 for preventing a generic hard foreign body to bump against the evaporator 15.
  • a filtering assembly 18 which is located along the air circulating conduit 12, upstream of the evaporator 15, and is structured so as to stop lint carried by the air flow from the drum 3 upstream of both the evaporator 15 and the condenser 16
  • a rigid, protective grid-like assembly 19 which is firmly and preferably also remov
  • the grid-like assembly 19 is preferably shaped/dimensioned so as to have an air-passage free surface ratio at least equal to twice the air-passage free surface ratio of the filtering air-passage free assembly 18.
  • the protective grid-like assembly 19 preferably comprises a flat, rigid, large-meshed grid 19 which is preferably complementary in shape to the air circulating conduit 12 and is preferably realized in a metal or plastic material.
  • the socle 9 of outer casing 2 is formed by a lower half-shell 9a which is structured for resting on the floor, and by an upper half-shell 9b which is structured for being stacked up on top of, and rigidly coupled to, the lower half-shell 9a, so to preferably directly support the body 10 and preferably also the front and rear rollers 11 that support the drum 3.
  • the lower half-shell 9a and the upper half-shell 9b when coupled to one another, define the substantially horizontally-oriented, whole central portion 12c which houses, one downstream the other along the flowing direction of the airflow f , the protective grid-like assembly 19 and both the evaporator 15 and the condenser 16.
  • the lower half-shell 9a and the upper half-shell 9b are preferably shaped so as to firmly block in between themselves the grid 19, and preferably also the evaporator 15 and the condenser 16.
  • the lower half-shell 9a and upper half-shell 9b are shaped so as to form the two halves of the central portion 12c of the air circulating conduit 12, and for being substantially airtight coupled to one another, so as to form the whole central portion 12c and, at the same time, block in position the grid 19, the evaporator 15 and the condenser 16.
  • the lower half-shell 9a and the upper half-shell 9b are preferably, though not necessarily, realized in plastic material by means of an injection molding process.
  • the filtering assembly 18 in turn preferably comprises a first and a second manually-removable, air-filtering devices which are located, one downstream the other along the air circulating conduit 12, upstream of the protective grid-like assembly 19, evaporator 15 and condenser 16.
  • the first air-filtering device preferably comprises a substantially plug-shaped, air-filtering device 20 which is inserted in easy extractable manner into the inlet portion 12i of the air circulating conduit 12 to stop lint at the entrance of the air circulating conduit 12 itself.
  • the second air-filtering device comprises an air-permeable panel, preferably formed by a narrow-meshed net 21 which is located inside the central portion 12c of the air circulating conduit 12, immediately upstream of the protecting grid-like assembly 19, so as to completely obstruct the local air-passage section of the central portion 12c and, so as to stop lint upstream of evaporator 15.
  • the air-passage free surface ratio of the air-permeable panel 21 is less than half the air-passage free surface ratio of the air-permeable grid 19.
  • the panel 21 is rigidly fixed on a supporting drawer 22 which is removably inserted, into a corresponding access opening 22a realized on the front of the socle 9, and directly communicating with the air circulating conduit 12, upstream of the protective grid-like assembly 19.
  • the laundry dryer 1 is provided with an inner door 23 for closing the opening 22a and an outer door 24 for covering the inner door 23, which will be described in detail in the following.
  • the fan 13 preferably comprises a housing 25 which is located on the back of the socle 9, at the end of the central portion 12c of the air circulating conduit 12, so to be in fluid communication with both the central portion 12c itself, and the inside of drum 3; and an impeller 26, which is fixed inside the housing 25 to rotate around an axis A and generate, in use, the airflow f.
  • the electric motor 5 is rigidly fixed on the socle 9 so that its output shaft 5a extends outside the rear portion of the socle 9, in correspondence to the end of the central portion 12c of the air circulating conduit 12, and the fan 13 is mechanically connected to the electric motor 5.
  • the fan 13 is axially aligned to the output shaft 5a of the electric motor 5 so that the housing 25 is substantially coaxial to the shaft 5a and the impeller 26 is keyed to the end shaft 5a to be directly driven in rotation by the electric motor 5.
  • the housing 25 is integrated at least partially in the back portion of the socle 9 formed by the half-shells 9a and 9b.
  • the housing 25 comprises a first portion 25a incorporated directly into the socle 9 in correspondence to the end of the central portion 12c of the air circulating conduit 12, and a second portion 25b, which is shaped to be tightly coupled, although in an easily releasable manner, to first portion 25a for closing the first portion 25a itself and cover the impeller 26 that is at least partially fitted within the first portion 25a.
  • the first portion 25a is realized in one piece with the socle 9, while the second portion 25b is defined by a substantially cup-shaped, rigid cover 25b which is fixed in a rigid and stable, though easily releasable, manner to the area of the socle 9 forming the first portion 25a so as to substantially airtight close the first portion 25a and completely cover the impeller 26.
  • the first portion 25a is preferably divided into two distinct and separate sections, which are integrally realized, respectively, with the lower half-shell 9a and the upper half-shell 9b so that the whole first portion 25a is completely formed when the two half-shells 9a and 9b are coupled to one another.
  • the aforesaid two sections forming the first portion 25a form, when coupled, a first half-volute of the housing 25; whereas the second portion 25b forms a second half-volute complementary to the first half-volute and structured for being airtight coupled to the latter to define, in their assembly, the housing 25.
  • the lower half-shell 9a and the upper half-shell 9b are, preferably, shaped in such a way that the central portion 12c of the air circulation conduit 12 is substantially L-shaped and comprises a first segment extending below the drum 3 and substantially parallel to the axis L of the drum 3 itself, and a second transversal segment extending below the drum 3 and substantially perpendicular to the axis L.
  • the protective grid-like device 19, the evaporator 15 and the condenser 16 are arranged in series following this order, within the central portion 12c of the air circulating conduit 12; the refrigerant compressing device 17 and the electric motor 5 are preferably fixed on the socle 9 and are aligned one to another in a direction parallel to axis L of the drum 3, behind the central portion 12c of the air circulating conduit 12, so that the shaft 5a of the electric motor 5 extends outside a back portion of socle 9, in correspondence to one end of the central portion 12c.
  • the electric motor 5 and the compressing device 17 are directly fixed on the lower half-shell 9a, behind the first segment of the central portion 12c of the air circulating conduit 12.
  • the fan 13 is therefore located, in the back of the socle 9, at the end of the second segment of the central portion 12c of the air circulating conduit 12, and is axially aligned to the shaft 5a of the electric motor 5.
  • the outer door 24 is defined by an upper portion 27, which has an outer surface 28 and an inner surface 29 that faces the inner door 23, and a lower portion, which is rigidly connected to a bottom edge of the upper portion and is defined by a set of horizontal fins 30 stacked together and aligned with corresponding vent fins obtained through the front wall of the socle 9, next to the door 24.
  • the outer door 24 is hinged to the socle 9 in correspondence to a side edge of the upper portion 27 in proximity to an angle of the socle 9 to rotate around a substantially vertical axis between a closed position ( Figures 1 and 5 ), in which a peripheral region of the inner surface 29 is engaged in the socle 9 and the outer door 24 covers the inner door 23 preventing access to the latter, and one open position ( Figure 6 ), in which the outer door 24 is rotated towards the outside and makes completely accessible the inner door 23 which closes the opening 22a.
  • the inner door 23 is defined by a panel which has an outer surface 31 facing the outer door 24 and an inner surface 32 facing the drawer 22.
  • the inner door 23 is fixed in a removable manner, on the socle 9 to rotate about its own longitudinal bottom edge between a closed position ( Figures 6 and 7 ), in which the inner door 23 is arranged between the drawer 22 and the outside door 24 airtight sealing the opening 22a, and an open position (not shown), in which the inner door 23 is tilted towards the outside and leaves opening 22a completely free allowing an operator to easily remove the drawer 22.
  • the inner door 23 has, rigidly connected along its lower edge, a cylindrical rib 33, which pivotally engages, a series of semi-cylindrical cavities 34, which are formed in respective appendices 35 integral with the socle 9 and define in their assembly and with the rib 33, a hinge for the inner door 23.
  • This hinge allows rotation of the inner door 23 along an axis substantially parallel to the support surface of the laundry dryer.
  • the inner door 23 is provided with a gasket 36, which extends along the entire periphery of the inner surface 32 and when the inner door 23 is closed, it is pressed against a peripheral portion of the opening 22a.
  • the inner door 23 can be securely locked in the closed position by a locking device 37, which comprises a cavity 38, formed into the socle 9 on one side of opening 22a facing a top edge 39 of inner door 23 and arranged with its concave face downwards and towards the edge 39 itself, and a tooth 40 that is fixed on the inner door 23 near the midpoint of the edge 39 and is mobile from and towards a locked position, in which the tooth 40 transversally engages the cavity 38 locking the inner door 23 in the closed position.
  • a locking device 37 which comprises a cavity 38, formed into the socle 9 on one side of opening 22a facing a top edge 39 of inner door 23 and arranged with its concave face downwards and towards the edge 39 itself, and a tooth 40 that is fixed on the inner door 23 near the midpoint of the edge 39 and is mobile from and towards a locked position, in which the tooth 40 transversally engages the cavity 38 locking the inner door 23 in the closed position.
  • the tooth 40 defines a first arm of a rocker element 41, which is mounted on the outer surface 31 near the edge 39, and pivots on a pin 42 for swinging about an axis substantially perpendicular to the outer surface 31 and comprises a second arm, which is opposed and integral with tooth 40, extending downwards from the pin 42 and defines a handle 43 adapted for being grasped by an operator to rotate the tooth 40 from and to the locked position and to move the inner door 23 towards the opening or closing position.
  • the tooth 40 is preferably defined by a half-disc shaped flat element, which lies on a plane substantially parallel to the inner door 23 and extends from the pin 42 towards the opposite side to that in which lies the handle 43 beyond the edge 39 in order to be able to engage the cavity 38, when arranged in the locked position.
  • the handle 43 is defined, however, by a generally triangular body, which lies on a plane substantially perpendicular to the tooth 40 and to the inner door 23 and extends transversely from the outer surface 31 beyond a plurality of reinforcement beads 44 integral with the outer surface 31 itself.
  • the longitudinal ends of the slot 45 define respective end of stroke shoulders for the tooth 40 and the length of the slot 45 determines the width of an angular oscillation sector 43a of the handle 43.
  • the tooth 40 may be moved by rotating the handle 43, from the aforementioned locking position ( Figures 5 , 6 and 7 ), in which the handle 43 is arranged at a first end (on the right-hand in figures 5 and 6 ) of angular sector 43a and the tooth 40 abuts against a longitudinal end (on the left-hand in Figures 5 and 6 ) of the slot 45 and is partially inserted into the cavity 38, and a release position (not shown), in which the handle 43 is disposed at the second end of the angular sector 43a and the tooth 40 is abutting on the other longitudinal end of slot 45 and is completely outside the cavity 38 allowing, in this way, the opening of the innner door 23.
  • the inner door 23 can be completely detached from its seat by simply placing the tooth 40 in the unlocked position and pulling the inner door 23 itself upwardly and outwardly in order to extract the rib 33 through the transversal opening of the cavity 34.
  • To reassemble the inner door 23 is sufficient to center the inner door 23 with respect to the opening 22a and downwardly push the rib 33 to determine the snap-fit thereof in of cavity 34.
  • the laundry dryer 1 also comprises a security system which ensures that when the inner door 23 is closed, the handle 43 is disposed at the end of the first angular sector 43a, i.e. the end corresponding to the locked position of the tooth 40 and not, for example, in an intermediate position of the angular sector 43a.
  • the seal created by the gasket 36 may not be effective and air leaks from the air circulating conduit 12 may occur during operation of the laundry dryer.
  • the outer door 24 has on its inner surface 29 and near its own top edge, an impression 47, which in negative reproduces, the overall dimensions of the ribs 46 and of the handle 43 when the latter is placed at the end of the first angular sector 43a. It follows that, in use, the outer door 24 may be closed, i.e. taken in facing position to the inner door 23 so as to cover it and prevent access to it, only if the tooth 40 is in the locked position. When the outer door 24 is closed, the impression 47 receives the handle 43 and maintains the locking device permanently in the locking position.
  • the impression 47 has a generally T-shape and comprises a horizontal portion 48, which is adjacent and parallel to the upper edge of the outer door 24 and is constructed to accommodate the ribs 46 when the outer door 24 is closed; and a portion 49, which downwardly extends from portion 48, i.e. towards the fins 30, and is inclined with respect to the portion 48 to accommodate the handle 43 placed in its angular end of stroke position correspondingly to the locked position of the tooth 40, when the outer door 24 is closed.
  • the handle 43 will not be in alignment with the portion 49 of the impression 47, but will contrast with the inner surface 29 alerting the operator of the defective closure of the inner door 23.
  • portion 49 of the impression 47 is laterally bounded by two walls, one of which, corresponding to the shorter side of the portion 49, is substantially perpendicular to the inner surface 29, while the other, which is indicated with 50 and corresponds to the longer side of the portion 49, is countersunk towards the inner surface 29 to define a cam or slide, which, in case the handle 43 has not fully reached the first end of the angular sector 43a but is just next to the end of stroke position which corresponds to the locked position of the tooth 40, it performs the function of pushing the handle 43 to its end of stroke position, thereby reaching the locked position by the tooth 40 while the outer door 24 is moved next to the inner door 23 to be closed.
  • the side surface 50 of the impression 47 engages the handle 43 if the latter is deviated from said reference by an angle ⁇ comprised within a predetermined range determined according to the geometry of the handle 43 and of the impression 47 ( Figure 5 ). More preferably, the angle ⁇ is between 1° and 25°.
  • the impression 47 does not receive the handle 43 and the outer door 24 does not close. In this way, the user is informed of improper tightening of the locking device of the inner door 23 and can easily intervene to restore the normal operating condition by acting on the handle 43.
  • the drawer 22 comprises a frame 51 adapted for supporting the filtering panel 21 and a concave appendix 52, which is connected to the frame 51 and is interposed between the frame 51 and the inner door 23 defining a deviator of the drying air flow from the drum 3 and directed towards the evaporator 15.
  • the concave appendix 52 comprises two side walls 53 integral with their respective side edges of the frame 51, and a curved wall 54, which is integral with a bottom edge of the frame 51, connecting the side walls 53 and is placed with its concave side facing upwards.
  • the curved wall 54 that preferably has a height equal to about half the height of the frame 51, is bounded from above by a straight edge 55 and has, at the edge 55 itself, three preferably through openings 56, defining a handle adapted to allow an operator to easily grasp and pull the drawer 22.
  • the openings 56 are also part of a centering device which ensures that the inner door 23, when closed, is perfectly centered with respect to the opening 22a actuating, therefore, an effective airtight closure of the opening 22a itself. It can happen, in fact, that, since the hinge formed by the rib 33 and the cavities 34 is not longitudinally constrained, the inner door 23 moves laterally, and once closed, does not allow the perfect fitting of the gasket 36 to the peripheral area of the opening 22a.
  • the inner door 23 has on its inner surface 32, three projecting portions 57, which are part of the mentioned centering device and are conformed to precisely engage, when the inner door 23 is closed, the respective openings 56 of the drawer 22 so as to achieve the centering of the inner door 23 with respect to opening 22a and, in case of through openings 56, fluid-tight seal said openings 56 with the result of avoiding, in use, alteration and/or leakage of drying air flow from the drying air circulating conduit 12.
  • the number and shape of the openings 56 and projecting portions 57 may differ from those of the above illustrated example without causing any substantial change to the operational concept.

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

Claims (11)

  1. Sèche-linge comprenant une carrosserie externe (2) ; un tambour (3) fixé d'une manière rotative à l'intérieur de la carrosserie (2), et un conduit de circulation d'air (12) s'étendant à travers le tambour (3) et au moins un échangeur de chaleur (15) ; ladite carrosserie (2) comportant une ouverture traversante (22a), qui communique avec le conduit de circulation (12) et autorise un accès à l'échangeur de chaleur (15) ; le sèche-linge (1) comprenant en outre une porte intérieure (23) pour ouvrir/fermer ladite ouverture (22a) et une porte extérieure (24) pour recouvrir la porte intérieure (23), ladite porte extérieure (24) étant déplaçable entre une position fermée qui empêche un accès à la porte intérieure (23) et une position ouverte dans laquelle la porte intérieure (23) est accessible ; ladite porte intérieure (23) présentant un dispositif de verrouillage (37) déplaçable à partir de et à une position de verrouillage de la porte intérieure (23) et comprenant une poignée d'entraînement (43) ; le sèche-linge (1) étant caractérisé par le fait que la porte extérieure (24) comprend une surface intérieure (29) qui est tournée vers la porte intérieure (23), ladite surface intérieure (29) comportant une empreinte (47) recevant ladite poignée lorsque la porte extérieure (24) est placée dans la position fermée.
  2. Sèche-linge selon la revendication 1, dans lequel l'empreinte (47) a une surface latérale inclinée (50) définissant une came ou une glissière agencée pour déterminer le mouvement de la poignée (43) vers la position verrouillée pendant le mouvement de la porte extérieure (24) vers la position fermée.
  3. Sèche-linge selon la revendication 2, dans lequel la surface latérale (50) et la poignée (43) sont conformées pour être engagées pendant le mouvement de la porte extérieure (24) vers sa position fermée lorsque ladite poignée (43) est déviée de sa position de fin de course, correspondant à la position verrouillée dudit dispositif de verrouillage (37), d'un angle α compris dans une plage prédéterminée.
  4. Sèche-linge selon la revendication 3, dans lequel l'angle α est compris entre 1° et 25°.
  5. Sèche-linge selon l'une des revendications 3 ou 4, dans lequel l'empreinte (47) est empêchée de s'engager avec la poignée (43) lorsque cette dernière est déviée de sa position de fin de course, correspondant à la position verrouillée dudit dispositif de verrouillage (37), d'un angle α > 25°.
  6. Sèche-linge selon l'une des revendications précédentes, comprenant un tiroir de maintien de filtre (22) placé entre l'échangeur de chaleur (15) et l'ouverture (22a) et amovible à travers l'ouverture (22a) elle-même, ledit tiroir (22) comprenant une paroi (54) présentant au moins une ouverture (56) ; la porte intérieure (23) comportant au moins une partie en saillie (57) conformée pour engager ladite au moins une ouverture (56) lorsque la porte intérieure (23) ferme l'ouverture (22a).
  7. Sèche-linge selon la revendication 6, dans lequel ladite au moins une ouverture (56) est une ouverture traversante et ladite au moins une partie en saillie (57) ferme de façon étanche aux fluides ladite au moins une ouverture (56).
  8. Sèche-linge selon l'une des revendications 6 ou 7, dans lequel l'engagement de ladite au moins une partie en saillie (57) à l'intérieur de ladite au moins une ouverture (56) actionne le centrage de la porte intérieure (23) par rapport à l'ouverture (22a).
  9. Sèche-linge selon l'une des revendications précédentes, dans lequel ledit dispositif de verrouillage (37) comprend une cavité (38) obtenue sur la carrosserie (2) ; la poignée (43) définissant un premier bras d'un élément culbuteur (41), qui pivote sur la porte intérieure (23) et comprend un second bras défini par une dent (40) d'un seul tenant à la poignée (43) ; la poignée (43) étant montée pour osciller sur un secteur angulaire (43a) de largeur déterminée entre une première position de fin de course, qui correspond à la position verrouillée et dans laquelle la dent (40) est placée à l'intérieur de la cavité (38), et une seconde position de fin de course, dans laquelle la dent (40) est à l'extérieur de la cavité (38).
  10. Sèche-linge selon la revendication 9, dans lequel la porte intérieure (23) présente une partie (46) se projetant vers la porte extérieure (24) et comporte une fente (45) engagée transversalement par la dent (40) ; la dimension du secteur angulaire mentionné (43a) étant déterminée par la longueur de la fente (45), dont les extrémités axiales définissent les positions de fin de course respectives pour la dent (40).
  11. Sèche-linge selon la revendication 10, dans lequel l'empreinte (47) a une forme généralement en T et comprend une première partie (48) conformée pour recevoir ladite partie en saillie (46) lorsque la porte extérieure (24) est dans une position fermée, et une seconde partie (49) s'étendant à partir de la première partie (48) vers le bas et qui est inclinée par rapport à la première partie (48), ladite seconde partie (49) étant apte à recevoir la poignée (43) placée dans ladite première position de fin de course lorsque la porte extérieure (24) est dans la position fermée.
EP11167986.6A 2011-05-27 2011-05-27 Sèche-linge Active EP2527529B1 (fr)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2743396A1 (fr) * 2012-12-17 2014-06-18 Electrolux Home Products Corporation N.V. Sèche-linge
TR201719285T3 (tr) * 2013-01-30 2019-05-21 Arcelik As Kondenser üni̇tesi̇ ki̇li̇tleme mekani̇zmasi i̇çeren kurutma maki̇nesi̇
DE102013215071A1 (de) 2013-08-01 2015-02-05 BSH Bosch und Siemens Hausgeräte GmbH Wäschebehandlungsgerät mit einer Wartungsöffnung, die durch einen Wartungsverschluss verschließbar ist
DE102013225349B4 (de) * 2013-12-10 2017-01-05 BSH Hausgeräte GmbH Haushaltsgerät
DE102015205448A1 (de) * 2015-03-25 2016-11-10 BSH Hausgeräte GmbH Wartungsklappe für ein Hausgerät und Hausgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19960414C1 (de) * 1999-12-15 2001-03-15 Whirlpool Co Kondensationswäschetrockner mit Wäschetrommel und Wärmetauscher
EP1966428B1 (fr) * 2005-12-29 2012-06-06 Arçelik Anonim Sirketi Séchoir
DE202006018205U1 (de) 2006-11-06 2007-02-15 V-Zug Ag Wäschetrockner mit Zusatzwärmetauscher
EP2196578B1 (fr) * 2008-12-11 2011-09-21 Electrolux Home Products Corporation N.V. Séchoir à linge avec condensateur amovible
EP2309053B1 (fr) * 2009-10-09 2016-11-02 Miele & Cie. KG Machine de traitement du linge, notamment sèche-linge

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