EP1666657B1 - Geräuscharmer Haushaltstrockner - Google Patents

Geräuscharmer Haushaltstrockner Download PDF

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Publication number
EP1666657B1
EP1666657B1 EP04106204A EP04106204A EP1666657B1 EP 1666657 B1 EP1666657 B1 EP 1666657B1 EP 04106204 A EP04106204 A EP 04106204A EP 04106204 A EP04106204 A EP 04106204A EP 1666657 B1 EP1666657 B1 EP 1666657B1
Authority
EP
European Patent Office
Prior art keywords
drum
air
conduit
drying
machine according
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.)
Expired - Lifetime
Application number
EP04106204A
Other languages
English (en)
French (fr)
Other versions
EP1666657A1 (de
Inventor
Luigi Arreghini
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 PL04106204T priority Critical patent/PL1666657T3/pl
Priority to AT04106204T priority patent/ATE543940T1/de
Priority to EP04106204A priority patent/EP1666657B1/de
Priority to ES04106204T priority patent/ES2379264T3/es
Publication of EP1666657A1 publication Critical patent/EP1666657A1/de
Application granted granted Critical
Publication of EP1666657B1 publication Critical patent/EP1666657B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/52—Preventing or reducing noise

Definitions

  • the present invention refers to an improved kind of clothes drying machine, preferably of the type for use in households, which is provided with improved means for circulating the drying air that are improved to ensure high energy efficiency and low-noise operation.
  • the present invention therefore applies also to the so-called exhaust-type clothes drying machines, in which the air is taken from the outside ambient, duly heated up, blown into the rotating drum, removed from the same rotating drum and, eventually, exhausted again into the outside ambient, as opposed to what occurs in condenser-type clothes drying machines, in which the air is on the contrary caused to circulate in a closed-loop circuit that includes a suitable condenser arrangement, so as this is illustrated symbolically in Figure 1 .
  • Both condenser-type and exhaust-type clothes drying machines share - further to the rotating drum - a common operating feature, i.e. the circumstance that in both cases there are provided an air delivery or inflow conduit and an outflow conduit, along with related openings arranged in the walls of the drum, through and in which the drying air is caused to circulate with the aid of means largely known as such in the art.
  • a clothes dryer provided with heat insulating means is divulged to improve the drying efficiency.
  • Said insulating means comprise outer and inner layers, wherein a thin air layer is formed in the gap between said outer and inner layers.
  • a drum 1 adapted to hold the clothes to be dried, to which there is associated a delivery conduit 2 letting the drying air into the drum through an appropriate inflow opening 3, an air outlet or exhaust conduit 4 removing the drying air from the interior of the drum through a corresponding outflow opening 5, wherein said conduits 2 and 4 are joined to each other via a condenser 6, which is adapted to cause the moisture contained in the drying air flowing therethough to condense, said condenser being furthermore flown through by a flow of "cold" air, i.e. air taken in from the outside ambient and sent to said condenser 6 via a corresponding cooling conduit (not shown).
  • "cold" air i.e. air taken in from the outside ambient and sent to said condenser 6 via a corresponding cooling conduit (not shown).
  • said drum is entirely muffled and enclosed in a substantially closed container 8, with the sole exceptions that shall be pointed out further on in this description, being preferably in the shape of a cylinder so as to as far as possible closely follow the contour of the drum contained therein, while avoiding to occupy any excessive additional space inside the outer casing of the clothes drying machine, so as this is better illustrated in Figure 3 .
  • This cylindrical container 8 is provided with related parallel bases 9 and 10; in each one of these bases there is provided a related opening 11, 12, through which the corresponding air delivery conduit 2 and outlet conduit 4 are allowed to pass.
  • the connection at which said air delivery conduit 2 flows into the corresponding inflow opening 11 is of the sealed, i.e. air-tight type; the same applies as far as the connection at which said air outlet conduit 4 flows into the corresponding outflow opening 12 is concerned.
  • said cylindrical container 8 is suspended inside the outer casing of the clothes drying machine with the aid of means that are largely known as such in the art (not shown in the Figures).
  • said container 8 does not only contain the drum 1 thereinside, but also the portions 2A and 4A of the air delivery conduit 2 and the air outlet conduit 4, which penetrate into and extend beyond the respective openings 11 and 12.
  • said container 8 proves effective in enabling the desired result to be fully attained, since it encloses the entire drum thereinside, so that the noise generated in said drum, and leaking out towards the outside ambient, is deadened in a most effective, radical manner.
  • one of these improvements consists in designing the delivery conduit 2 so that a section thereof features a portion that it shares with the base 9, which it extends through, wherein this common portion may be an outwardly facing portion 2B of the conduit 2.
  • a section of the outlet conduit 4 features a portion that it shares with the base 10, which it extends through., wherein this common portion may be an outwardly facing portion 4B of the conduit 4.
  • FIG. 3 and 4 are just symbolical views and are used to represent in a simple and readily appreciable manner what is actually the core of the present invention.
  • Figure 5 is a view illustrating an embodiment of the present invention, which is closer to a real machine and provides further construction-related advantages.
  • said container 8 is constituted by a substantially cylindrical wrapper, i.e. side wall which, further to containing the drum 1 and other members and parts associated therewith, as described in greater detail below, is not provided with any base, i.e. front and rear walls of its own, but shuts both frontally and at the rear by abutting against respective portions 16 and 17 of the front wall and the rear wall, respectively, of the outer casing of the machine.
  • the axis X of the cylindrical contour of said container 8 is most suitably caused to coincide with the axis of the drum 1, which is conventionally made in the shape of a cylinder, and which is driven to rotate about an axis of rotation that in turn coincides with said axis X.
  • the drive motor 7 used to rotatably drive the clothes holding drum is also included, jointly with the driving belt 18 used to transmit motion from the motor pulley to the exterior of the drum 1 in a manner largely known as such in the art, inside the container 8.
  • said motor 7 is mounted on the inner surface of the container 8, to which it is secured with the aid of generally known fastening means. Furthermore, for it to be adapted to accommodate said motor 7, said container 8 is shaped so as to feature a suitably shaped niche-like accommodation 19, so that the container 8 practically behaves as a "skin" that encloses solely the drum and the motor, further to obviously a part of the delivery and exhaust conduits. It therefore does not add any particular complication to the construction and the operation of the machine.
  • a further improvement consists in providing the wall of the drum with a number of perforations 20, so that any air that may possibly leak into the gap or hollow space 21 between the drum 1 and said container 8, is allowed, by passing through said perforations 20, to flow back again into the drum and contribute to the drying process.
  • a further advantage of such solution lies in the fact that the air flowing back into the drum through said perforations impinges upon the clothes, i.e. the drying load from outside, thereby favouring a more rapid and uniform drying effect, since the main flow of drying air passes through the drum in an axial direction and, therefore, impinges in a preferential manner upon those portions of clothes or drying items that lie in the central zone of the drum, while it does so in a more limited manner as far as the drying items are concerned, which lie in zones that are closer to the wall of the same drum.

Landscapes

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

Claims (8)

  1. Frontlader-Wäschetrocknermaschine, die eine Trommel (1) umfasst, welche die zu trocknende Wäsche aufnimmt; ferner eine Einflussöffnung (3), die sich in diese Trommel öffnet; eine Zuführungsleitung (2), welche die Trocknungsluft durch die Einflussöffnung in die Trommel befördert; eine Ausflussöffnung (5), die dazu dient, die Trocknungsluft vom Inneren der Trommel nach außerhalb derselben strömen zu lassen; eine Auslass- oder Abluftleitung (4), die die Trocknungsluft vom Inneren der Trommel durch die Ausflussöffnung entfernt; einen Motor (7), der dazu geeignet ist, die Trommel wahlweise rotierend anzutreiben; Behaltermittel (8), die dazu geeignet sind, die rotierende Trommel (1) und den Antriebsmotor (7) zu umschließen, mit einem zugehörigen Treibriemen (18), der dazu vorgesehen ist, die Bewegung von dem Motor auf die Trommel zu übertragen, in einem gemeinsamen Raum, der geschlossen, d. h. nach außen hin abgedichtet ist, dadurch gekennzeichnet, dass das Behältermittel (8) in sich zusätzlich Folgendes umfasst:
    - einen Abschnitt (2A) der Luftzuführungsleitung (2), der das Behältermittel (8) durchdringt, um in die Trommel auszutreten, und
    - einen Abschnitt (4A) der Abluftleitung (4), der das Behältermittel (8) durchdringt, um in die Trommel auszutreten.
  2. Kleidertrocknermaschine gemäß Anspruch 1, dadurch gekennzeichnet, dass das Behältermittel (8) eine Rückwand oder -basis (9) und eine Frontwand oder -basis (10) umfasst und dass die Rückbasis (9) einen Abschnitt ihrer Oberfläche mit einem Abschnitt (2B) der Luftzuführungsleitung (2) teilt und/oder dass die Frontbasis (10) einen Abschnitt ihrer Oberfläche mit einem Abschnitt (4B) der Abluftleitung (4) teilt.
  3. Maschine gemäß Anspruch 1, dadurch gekennzeichnet, dass das Behältermittel (8) aus einer im wesentlichen zylindrischen Hülle zusammengesetzt ist, die eine mit der Achse der Trommel zusammenfallende Achse aufweist, wobei die im wesentlichen zylindrische Hülle an der Vorderseite durch einen Abschnitt (16) der Innenfläche der Frontwand des Außengehäuses der Maschine abgeschlossen wird und ferner an der Rückseite durch einen Abschnitt (17) der Innenfläche der Rückwand des Außengehäuses der Maschine abgeschlossen wird.
  4. Maschine gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Motor (7) fest an der Innenwand des Behältermittels (8) montiert ist.
  5. Maschine gemäß Anspruch 4, dadurch gekennzeichnet, dass ein Abschnitt der zylindrischen Oberfläche des Behältermittels (8) eine nischenartige Ausgestaltung (19) erfährt, die dazu geeignet ist, den Motor (7) aufzunehmen.
  6. Maschine gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass zwischen der Einflussöffnung (3), welche die Luft in die Trommel einlässt, und der Luftzuführungsleitung (2) kein Dichtungs- oder Versiegelungsmittel vorgesehen ist.
  7. Maschine gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass zwischen der Ausflussöffnung (5), welche die Luft aus der Trommel herauslässt, und der Abluftleitung (4) kein Dichtungs- oder Versiegelungsmittel vorgesehen ist.
  8. Maschine gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass in der Außenwand der rotierenden Trommel (1) eine Mehrzahl von Perforationen (20) vorgesehen ist.
EP04106204A 2004-12-01 2004-12-01 Geräuscharmer Haushaltstrockner Expired - Lifetime EP1666657B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL04106204T PL1666657T3 (pl) 2004-12-01 2004-12-01 Urządzenie do suszenia ubrań, o niskim poziomie hałasu, stosowane w gospodarstwach domowych
AT04106204T ATE543940T1 (de) 2004-12-01 2004-12-01 Geräuscharmer haushaltstrockner
EP04106204A EP1666657B1 (de) 2004-12-01 2004-12-01 Geräuscharmer Haushaltstrockner
ES04106204T ES2379264T3 (es) 2004-12-01 2004-12-01 Máquina secadora de ropa doméstica de bajo ruido

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04106204A EP1666657B1 (de) 2004-12-01 2004-12-01 Geräuscharmer Haushaltstrockner

Publications (2)

Publication Number Publication Date
EP1666657A1 EP1666657A1 (de) 2006-06-07
EP1666657B1 true EP1666657B1 (de) 2012-02-01

Family

ID=34929974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04106204A Expired - Lifetime EP1666657B1 (de) 2004-12-01 2004-12-01 Geräuscharmer Haushaltstrockner

Country Status (4)

Country Link
EP (1) EP1666657B1 (de)
AT (1) ATE543940T1 (de)
ES (1) ES2379264T3 (de)
PL (1) PL1666657T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006007442A1 (de) * 2006-02-17 2007-08-23 BSH Bosch und Siemens Hausgeräte GmbH Reinigungsvorrichtung für ein Bauteil eines Haushaltswäschetrockners
EP2107154A1 (de) * 2008-04-04 2009-10-07 Electrolux Home Products Corporation N.V. Haushaltswäsche und/oder Trocknungsanwendung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01175896A (ja) * 1987-12-29 1989-07-12 Matsushita Electric Ind Co Ltd 衣類乾燥機
JP2830363B2 (ja) * 1990-04-27 1998-12-02 松下電器産業株式会社 除湿式衣類乾燥機
JPH0686897A (ja) * 1992-09-09 1994-03-29 Matsushita Electric Ind Co Ltd ドラム式洗濯乾燥機
JPH07275582A (ja) * 1994-04-13 1995-10-24 Nippon Kentetsu Co Ltd 衣類乾燥機
JP4103226B2 (ja) 1999-02-04 2008-06-18 松下電器産業株式会社 洗濯機
JP2000225298A (ja) * 1999-02-08 2000-08-15 Hitachi Ltd 衣類乾燥機
CN100375811C (zh) 2002-07-12 2008-03-19 乐金电子(天津)电器有限公司 家用电器的滚筒装置
ITPN20030015U1 (it) 2003-05-09 2004-11-10 Electrolux Home Products Corporatio N N V Asciugabiancheria domestica con ventola perfezionata.

Also Published As

Publication number Publication date
ES2379264T3 (es) 2012-04-24
ATE543940T1 (de) 2012-02-15
PL1666657T3 (pl) 2012-07-31
EP1666657A1 (de) 2006-06-07

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