EP1837434A1 - Séchoir à tambour - Google Patents

Séchoir à tambour Download PDF

Info

Publication number
EP1837434A1
EP1837434A1 EP06111422A EP06111422A EP1837434A1 EP 1837434 A1 EP1837434 A1 EP 1837434A1 EP 06111422 A EP06111422 A EP 06111422A EP 06111422 A EP06111422 A EP 06111422A EP 1837434 A1 EP1837434 A1 EP 1837434A1
Authority
EP
European Patent Office
Prior art keywords
drum
door
air
drying air
dryer 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.)
Granted
Application number
EP06111422A
Other languages
German (de)
English (en)
Other versions
EP1837434B1 (fr
Inventor
Elisabetta Bari
Maurizio Del Pos
Kevin Breese
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 ES06111422T priority Critical patent/ES2318668T3/es
Priority to EP06111422A priority patent/EP1837434B1/fr
Priority to DE602006005039T priority patent/DE602006005039D1/de
Priority to AT06111422T priority patent/ATE422007T1/de
Priority to PL06111422T priority patent/PL1837434T3/pl
Publication of EP1837434A1 publication Critical patent/EP1837434A1/fr
Application granted granted Critical
Publication of EP1837434B1 publication Critical patent/EP1837434B1/fr
Not-in-force legal-status Critical Current
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
    • D06F58/02—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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis

Definitions

  • the present invention refers to an improved kind of clothes tumble dryer.
  • the most commonly found dryers are generally comprised of an outer casing provided with a loading door, a drying air circuit adapted to cause heated air to be circulated through a perforated rotating drum holding the laundry to be dried, heating means adapted to heat up said drying air, and a condenser adapted to remove moisture from the hot moisture-laden drying air exiting said drum after having flown through the laundry contained therein.
  • the dryer further comprises blower means to circulate the drying air through the drum and the drying-air circuit.
  • the drying-air circuit is so arranged as to be able to cause the hot moisture-laden air to exit the drum and to deliver the same air into and through the condenser, where the air undergoes a heat-exchange process, in which heat is exchanged with a means lying at a lower temperature, to the purpose of removing from the air the moisture it took away from the clothes in the drum. Thereupon, the air is then heated up again passing through a heating element prior to its being blown again into the drum.
  • One of the most intensively pursued design targets in the field of laundry drying machines is to increasingly simplify the construction of the drying-air circuit, in view of being able to reduce the overall dimensions, and related space requirements, of the same circuit and, at the same time, improve the drying performance capabilities of the machine.
  • Still another purpose of the present invention is to reduce the heat loss, i.e. the amount of heat dissipated by the drying air exiting the drum, when it is conveyed into the drying circuit.
  • the clothes tumble dryer according to the present invention - as generally indicated at 1 in said Figures - comprises an outer casing 2 provided with a loading door 3, a drying air circuit adapted to cause a flow of heated air to be circulated through a perforated rotating drum 4 holding the laundry to be dried, heating means adapted to heat up said drying air, condenser means adapted to remove moisture from the hot moisture-laden air exiting the drum after having flown through the laundry contained in the drum.
  • the door 3 forms an air passage 5 that, when the door 3 is closed, fluidly communicates with said drum 4 so as to convey the hot and moisture-laden drying air exiting the drum 4 towards the condenser means; it further forms one or more cavities 6 to encapsulate, i.e. enclose an aerogel layer 7 therein, so as to thermally insulate from the outside the door 3 forming said air passage 5.
  • the dryer comprises a closed-loop drying-air circuit, through which the hot and moisture-laden drying air is conveyed, when leaving the perforated rotating drum, and the dehydrated drying air from the condenser is then delivered back into the drum, upon having duly heated up again, so as to remove additional moisture from the clothes being tumbled in the drum.
  • the dryer further comprises an open-loop cooling-air circuit adapted to cause a stream of cooling air taken in from outside to circulate through and over the condenser to cool it down before being eventually exhausted into the outside atmosphere again.
  • the tumble dryer comprises blower means adapted to cause the drying air to circulate inside the drum and through the closed-loop drying-air circuit, as well as to cause the cooling air to circulate through the open-loop cooling-air circuit.
  • the door 3 comprises a door frame 8 that, along side edges thereof, is provided with recesses 9 integrally forming corresponding rotating pins adapted to engage corresponding guides provided in the outer casing of the dryer. These pins are adapted to rotate inside said guides so as to enable the door 3 to rotate relative to the outer casing 2 and, therefore, access to be gained into the drum 4 to load and unload clothes in and from the same drum.
  • the door frame 8 has an inner side 10 that faces the drum 4 when the door 3 is closed, and an outer side 11 facing the outside of the machine.
  • the inner side 10 of the door frame 8 forms the air passage 5 adapted to convey the hot moisture-laden drying air exiting the drum 4 towards the condenser.
  • the air passage 5 is formed by the inner side 10 of the door frame 8 by means of a collecting or baffle member 12 projecting from the inner side 10 of the door frame 8 towards the drum 4 to receive and collect the air exiting the same drum.
  • the collecting member 12 is provided with an inflow portion 13 provided and arranged in such manner as to come to lie in a position close to an aperture of the drum 4 or to be received into said aperture when the door 3 is closed.
  • the inflow portion 13 comprises a surface provided with a plurality of perforations, through which the drying air is able to flow from the drum 4 into said air passage 5.
  • a removable filter (not shown) is arranged inside the baffle member 12 for retaining fluff being carried by the drying air flowing therethrough. The filter is adapted to be cleaned after each drying cycle by the user.
  • the above-mentioned collecting member 12 defines an abutment frame 14 that extends around the inflow portion 13 and is peripherally provided with a sealing member 15.
  • said abutment frame 14 is adapted to rest against an undercut provided on the outer casing 2 and correspondingly shaped so as to be able to receive the abutment frame 14 and enable the perforations of the inflow portion 13 of the collecting member 12 to come to lie inside the peripheral rim of the aperture of the drum 4.
  • the sealing member 15 is adapted to provide an air-tight coupling of the peripheral edge of the frame 14 with the receiving undercut in the outer casing, when the door 3 is closed, so as to force the drying air exiting the drum 4 to solely flow through the perforations of the inflow portion 13 of the collecting member 12 and, as a result, to flow into the air passage 5 of the door 3.
  • the drying air exits the drum 4 flows through the perforations in the inflow portion 13 of the collecting member 12 entering the air passage 5, and is deflected by the inner side 10 of the door frame 8 so as to be directed towards an outflow aperture provided in the air passage 5 of the door 3, through which said air passage 5 fluidly communicates with the condenser.
  • the inner side 10 of the door frame 8 therefore defines an airflow deflecting surface, over which the drying air flowing in from the drum 4 is adapted to stream to be deflected and conveyed towards the outflow aperture of the air passage 5, from which the air reaches then the condenser.
  • the outer side 11 of the door frame 8 forms a pluralities of cavities or compartments 6, which are separated from each other by partitions and are adapted to be filled with aerogel granules 7.
  • Aerogels have a very low density and an extremely low heat conductivity.
  • the term "gel” refers to a coherent, rigid, continuous three-dimensional network of colloidal particles. Gels are produced by the aggregation of colloidal particles (typically under acidic conditions when neutralizing salts are absent) to form a three-dimensional gel microstructure. When a gel is then dried (through the removal of liquid from the pores) with the use of means in which the coherent gel microstructure is preserved, as this for instance occurs in supercritical drying, a low-density "aerogel” is formed.
  • One suitable process for the production of aerogels is described in US 3,122,520 .
  • the aerogel granules may have any suitable diameter, preferably of approx. 5 to 10 mm.
  • any suitable aerogel granules can be used in the present invention and, in particular, the aerogels used are those based on metal oxides that are suitable for the sol-gel technique ( C.J. Brinker and G.W. Scherer, Sol-Gel Science 1990, Chapters 2 and 3 ), such as for instance Si or Al compounds, or those based on organic substances suitable for the sol-gel technique, such as melamine-formaldehyde condensates ( US Pat. No. 5,086,085 ) or resorcinol-formaldehyde condensates ( US Pat. No. 4,873,218 ). Mixtures of the above-mentioned materials may be used, as well. Preferably used are anyway aerogels containing Si compounds, such as in particular SiO 2 aerogels.
  • An outer panel 16 is adapted to be applied on to the door frame 8 so as to encapsulate, i.e. enclose the aerogel inside the same door 3.
  • the aerogel granules form a layer that thermally insulates the inner side of the door frame forming the air passage provided for the drying air exiting the drum to flow therethrough, thereby preventing the heat of the same air from dissipating outside the machine.
  • the external surface of the door acts, in fact, as a heat sink. The heat loss from the drying air due to convective heat exchange with the inner side of the door frame is drastically reduced, thereby improving the thermal efficiency of the drying cycle as a whole.
  • the dryer is therefore provided with a door that integrally forms a portion of the drying air circuit, thereby enabling the bulkiness of the same circuit and the space occupied by it inside the machine to be reduced and further enabling the pressure drop and the turbulence of the air flow to be reduced owing to the design of the air passage.
  • the door of the dryer forms a conveyance means that establishes an effective fluid communication between the drum and the condenser, thereby reducing flow resistance and pressure losses and maximizing the passage of the drying air from the drum into the circuit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Polarising Elements (AREA)
  • Woven Fabrics (AREA)
EP06111422A 2006-03-21 2006-03-21 Séchoir à tambour Not-in-force EP1837434B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES06111422T ES2318668T3 (es) 2006-03-21 2006-03-21 Secadora de ropa por volteo.
EP06111422A EP1837434B1 (fr) 2006-03-21 2006-03-21 Séchoir à tambour
DE602006005039T DE602006005039D1 (de) 2006-03-21 2006-03-21 Wäschetrommeltrockner
AT06111422T ATE422007T1 (de) 2006-03-21 2006-03-21 Wäschetrommeltrockner
PL06111422T PL1837434T3 (pl) 2006-03-21 2006-03-21 Suszarka bębnowa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06111422A EP1837434B1 (fr) 2006-03-21 2006-03-21 Séchoir à tambour

Publications (2)

Publication Number Publication Date
EP1837434A1 true EP1837434A1 (fr) 2007-09-26
EP1837434B1 EP1837434B1 (fr) 2009-01-28

Family

ID=36557703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06111422A Not-in-force EP1837434B1 (fr) 2006-03-21 2006-03-21 Séchoir à tambour

Country Status (5)

Country Link
EP (1) EP1837434B1 (fr)
AT (1) ATE422007T1 (fr)
DE (1) DE602006005039D1 (fr)
ES (1) ES2318668T3 (fr)
PL (1) PL1837434T3 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012212739A1 (de) * 2012-07-19 2014-01-23 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrockner mit Lagerschild mit thermischer Isolierung sowie hierfür geeignetes Lagerschild
CN103590225A (zh) * 2013-11-27 2014-02-19 肖泽斌 一种节能干衣机
CN105177914A (zh) * 2015-06-30 2015-12-23 无锡小天鹅股份有限公司 滚筒洗衣机
WO2016135599A1 (fr) * 2015-02-25 2016-09-01 Gorenje Gospodinjski Aparati, D.D. Sèche-linge à filtre d'air de séchage
US10526745B2 (en) 2018-04-19 2020-01-07 Haier Us Appliance Solutions, Inc. Door for improved air flow in a dryer appliance
CN114263011A (zh) * 2021-11-29 2022-04-01 珠海格力电器股份有限公司 洗干一体机
CN115350656A (zh) * 2022-09-07 2022-11-18 天津科技大学 一种纤维素纳米纤丝凝胶的烘缸加热浓缩装置、方法和应用
US11697901B2 (en) 2020-01-09 2023-07-11 Whirlpool Corporation Door assembly for a laundry treating appliance
TWI834129B (zh) * 2021-03-09 2024-03-01 南韓商Ｌｇ電子股份有限公司 衣物處理裝置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099542A (en) * 1960-04-25 1963-07-30 Gen Motors Corp Drying air heat control and moisture removal apparatus
US20040123489A1 (en) * 2002-04-22 2004-07-01 The Procter & Gamble Company Thermal protection of fabric article treating device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099542A (en) * 1960-04-25 1963-07-30 Gen Motors Corp Drying air heat control and moisture removal apparatus
US20040123489A1 (en) * 2002-04-22 2004-07-01 The Procter & Gamble Company Thermal protection of fabric article treating device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012212739A1 (de) * 2012-07-19 2014-01-23 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrockner mit Lagerschild mit thermischer Isolierung sowie hierfür geeignetes Lagerschild
WO2014012786A1 (fr) 2012-07-19 2014-01-23 BSH Bosch und Siemens Hausgeräte GmbH Sèche-linge comprenant un flasque isolé thermiquement et flasque conçu pour ce sèche-linge
CN103590225A (zh) * 2013-11-27 2014-02-19 肖泽斌 一种节能干衣机
CN103590225B (zh) * 2013-11-27 2016-01-13 肖泽斌 一种节能干衣机
WO2016135599A1 (fr) * 2015-02-25 2016-09-01 Gorenje Gospodinjski Aparati, D.D. Sèche-linge à filtre d'air de séchage
CN105177914A (zh) * 2015-06-30 2015-12-23 无锡小天鹅股份有限公司 滚筒洗衣机
CN105177914B (zh) * 2015-06-30 2017-12-26 无锡小天鹅股份有限公司 滚筒洗衣机
US10526745B2 (en) 2018-04-19 2020-01-07 Haier Us Appliance Solutions, Inc. Door for improved air flow in a dryer appliance
US11697901B2 (en) 2020-01-09 2023-07-11 Whirlpool Corporation Door assembly for a laundry treating appliance
TWI834129B (zh) * 2021-03-09 2024-03-01 南韓商Ｌｇ電子股份有限公司 衣物處理裝置
CN114263011A (zh) * 2021-11-29 2022-04-01 珠海格力电器股份有限公司 洗干一体机
CN115350656A (zh) * 2022-09-07 2022-11-18 天津科技大学 一种纤维素纳米纤丝凝胶的烘缸加热浓缩装置、方法和应用

Also Published As

Publication number Publication date
PL1837434T3 (pl) 2009-07-31
EP1837434B1 (fr) 2009-01-28
ATE422007T1 (de) 2009-02-15
DE602006005039D1 (de) 2009-03-19
ES2318668T3 (es) 2009-05-01

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