EP1516953B1 - Condenser-type low-noise household clothes drying machine - Google Patents

Condenser-type low-noise household clothes drying machine Download PDF

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Publication number
EP1516953B1
EP1516953B1 EP03021383A EP03021383A EP1516953B1 EP 1516953 B1 EP1516953 B1 EP 1516953B1 EP 03021383 A EP03021383 A EP 03021383A EP 03021383 A EP03021383 A EP 03021383A EP 1516953 B1 EP1516953 B1 EP 1516953B1
Authority
EP
European Patent Office
Prior art keywords
condenser
air
flow
machine
cooling air
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
EP03021383A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1516953A1 (en
Inventor
Silvano Cimetta
Flavio Noviello
Ugo Favret
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 AT03021383T priority Critical patent/ATE369456T1/de
Priority to DE60315456T priority patent/DE60315456T2/de
Priority to EP03021383A priority patent/EP1516953B1/en
Priority to SI200330992T priority patent/SI1516953T1/sl
Priority to ES03021383T priority patent/ES2291573T3/es
Publication of EP1516953A1 publication Critical patent/EP1516953A1/en
Application granted granted Critical
Publication of EP1516953B1 publication Critical patent/EP1516953B1/en
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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the present invention refers to an improved kind of condenser-type clothes drying machine, preferably of the type for use in households, which is particularly quiet in its operation.
  • the motor used to drive the fan circulating the condenser cooling air is usually an non-cooled motor, so that by operating in a continuous manner it tends to heat up to quite a considerable extent. This brings about a number of additional drawbacks in terms of a reduction in the electric efficiency and a need for a higher class of insulation to be adopted, which again means higher production and operating costs.
  • JP55070298 it is known a type of laundry dryer of the condensation type provided with a first and a second outlet openings, the latter being arranged in proximity of said motor and oriented forward it.
  • this clothes drying machine should be capable of making use of a motor for drying the cooling air circulating fan, which poses far less severe constraints in terms of heat endurance and electric insulation in its construction and is therefore far less expensive to manufacture.
  • this clothes drying machine must be able to be easily manufactured using existing, readily available materials and techniques, and be competitive in its construction; it shall furthermore be able to incorporate all these improvements without suffering any alteration or reduction in the performance abilities and the reliability thereof.
  • a condenser-type clothes drying machine incorporating the characteristics as recited in the appended claims; a condenser-type clothes drying machine includes such operating means as described below by mere way of non-limiting example with reference to the accompanying drawings, in which:
  • a clothes drying machine comprises an outer casing 1, inside which there are arranged:
  • Said second conduit is a conduit that is substantially open at both extremities thereof; on the one side it is in fact provided with an inlet opening 10 for taking in fresh air from the surrounding ambient, preferably on the rear side of the outer casing of said clothes drying machine, while on the other side, at the outlet from the condenser 6, said conduit splits into a first outlet opening 11 for exhausting part of the flow of air conveyed therethrough outside, i.e. into the ambient surrounding the machine, and into a second outlet opening 12 for exhausting inside the machine, i.e. towards the interior of said outer casing 1, the remaining part of said flow of air conveyed therethrough.
  • the outer casing of the machine is a substantially closed structure, except for the bottom side facing the floor, it practically behaves, as regards said flow of air expanding therewithin, as a noise deadening chamber, or a silencing muffler, and this occurrence is promoted by the considerable mass forming said machine. In this way, therefore, a first beneficial sound-deadening effect is obtained.
  • the question may logically arise as to why not the whole amount of air flowing out of the condenser is actually exhausted into the outer casing of the machine, since this should in theory prove effective in further improving the noise reduction effect, i.e. the quietness of the machine.
  • the answer to such a question lies in the fact that, if all of the air outflow from the condenser would be blown into the machine, the dynamic flow resistance of said leakage zones, and the resistance to the outflow of the air into the outside ambient, would in that case prevent the air from escaping at an adequate rate, i.e. in an adequate amount, thereby giving rise to an increase in the internal pressure that would in turn interfere with a correct passage of the flow of cooling air through the condenser.
  • the above-described solutions allow for a further advantageous improvement to be achieved; in fact, with reference to Figures 2 and 3, the inwardly diverted part 2B of the flow of cooling air is so oriented as to as much as possible hit said motor 9 before diffusing within the outer casing of the appliance. This may quite easily be obtained by arranging the related second outlet opening 12 as close as possible to said motor, duly oriented towards the latter.
  • the above-illustrated improvement carries another advantage with it, namely an advantage in terms of energy usage, owing to a flow of air pre-heated by the motor being actually let into the outer casing of the machine. This obviously causes the temperature of the air inside the outer casing to rise, and this temperature rise is automatically passed over to the drum, which is in this way able to take in part of the heat released by the motor. It can at this point be readily appreciated that the result of a rise in the temperature of the wall of the drum, even if this is brought about from the outside, is an increase of the internal temperature thereof and a corresponding reduction of the amount of heat that must be generated and transmitted by the heating element 4, under clear benefits in terms of overall energy usage.
  • the condenser 6 is made in the form of a parallelepiped, in which two opposite walls 20, 21 are passed through by the flow A of the drying air, whereas other two other opposite walls 22, 23 are passed through by the flow B of the cooling air.
  • a channel that has a first curved section 24 and then a following rectilinear section 25; the curved section 24 of this channel causes the flow B to turn by 180° and to move on further, via the following rectilinear section 25 of the same channel, over a wall of said condenser, in an exactly opposite direction with respect to the flow "B" entering the condenser.
  • channel section 24 may also take different forms, provided that, as this is for instance shown in Figure 5, it is capable of diverting its airflow in an opposite direction with respect to the direction of the inflowing air.
  • said flow B of cooling air must at a certain point be split into two separate flows 2a and 2b to be exhausted outside and redirected into outer casing of the machine, respectively.
  • Such a function is achieved by means of a partition S that is inserted in an appropriate position in said channel section 25, where it is arranged in such a manner as to enable it to assist the shape of said channel section 25 in splitting said two flows, diverting them in two respective directions, and conveying them towards an outflow grille 31 and said motor 9, respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
EP03021383A 2003-09-22 2003-09-22 Condenser-type low-noise household clothes drying machine Expired - Lifetime EP1516953B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT03021383T ATE369456T1 (de) 2003-09-22 2003-09-22 Lärmarmer haushaltswäschetrockner des kondensationtyps
DE60315456T DE60315456T2 (de) 2003-09-22 2003-09-22 Lärmarmer Haushaltswäschetrockner des Kondensationstyp
EP03021383A EP1516953B1 (en) 2003-09-22 2003-09-22 Condenser-type low-noise household clothes drying machine
SI200330992T SI1516953T1 (sl) 2003-09-22 2003-09-22 Gospodinjski stroj za susenje perila kondenzacijskega tipa z nizko glasnostjo
ES03021383T ES2291573T3 (es) 2003-09-22 2003-09-22 Secadora de ropa domestica silenciosa por condensacion.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03021383A EP1516953B1 (en) 2003-09-22 2003-09-22 Condenser-type low-noise household clothes drying machine

Publications (2)

Publication Number Publication Date
EP1516953A1 EP1516953A1 (en) 2005-03-23
EP1516953B1 true EP1516953B1 (en) 2007-08-08

Family

ID=34178468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03021383A Expired - Lifetime EP1516953B1 (en) 2003-09-22 2003-09-22 Condenser-type low-noise household clothes drying machine

Country Status (5)

Country Link
EP (1) EP1516953B1 (es)
AT (1) ATE369456T1 (es)
DE (1) DE60315456T2 (es)
ES (1) ES2291573T3 (es)
SI (1) SI1516953T1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012089603A3 (en) * 2010-12-31 2013-06-06 Arcelik Anonim Sirketi A laundry dryer

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1555342B1 (en) * 2003-12-19 2017-08-02 LG Electronics, Inc. A laundry dryer and an air inlet structure thereof
US8015726B2 (en) * 2005-06-23 2011-09-13 Whirlpool Corporation Automatic clothes dryer
TR200803577T1 (tr) * 2005-12-05 2008-11-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Bir kurutucu
DE102006007444A1 (de) * 2006-02-17 2007-08-23 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung und Verfahren zum Trocknen eines Gutes
DE102006031353A1 (de) * 2006-07-06 2008-01-17 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät zur Pflege von Wäschestücken und Verfahren zum Leiten von Kühlluft in einem solchen Hausgerät
EP1925714B1 (en) * 2006-11-24 2012-02-08 Candy S.p.A. Apparatus and method for controlling the flow of drying air in a laundry drying machine
DE102007052079A1 (de) * 2007-10-31 2009-05-07 BSH Bosch und Siemens Hausgeräte GmbH Ablufttrockner mit Wärmerückgewinnung und Kondensatwanne sowie Verfahren zu seinem Betrieb
DE102008010519A1 (de) * 2008-02-22 2009-09-03 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit gekühltem Motor
EP2395145A1 (de) * 2010-06-10 2011-12-14 Miele & Cie. KG Wäschetrockner
WO2014102314A1 (en) * 2012-12-28 2014-07-03 Arcelik Anonim Sirketi A laundry washing and drying machine comprising a dispenser
CN109629180A (zh) * 2018-11-08 2019-04-16 青岛海尔洗衣机有限公司 一种具有通风装置的洗衣机及其桶干燥控制方法
CN111088676B (zh) * 2019-11-27 2022-09-16 无锡小天鹅电器有限公司 基座及衣物处理装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135292A1 (de) * 1981-09-05 1983-03-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "kunststofftragkoerper fuer einen waeschetrockner"
DE3135289A1 (de) * 1981-09-05 1983-03-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "waeschetrockner"
DE3904988A1 (de) * 1989-02-03 1990-08-09 Zanker Gmbh & Co Ohg Waeschetrockner
DE19743509A1 (de) * 1997-10-01 1999-04-08 Bosch Siemens Hausgeraete Haushalt-Wäschetrockner mit einem Wäschefeuchtigkeit abführenden Prozeßluft-Kreis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012089603A3 (en) * 2010-12-31 2013-06-06 Arcelik Anonim Sirketi A laundry dryer

Also Published As

Publication number Publication date
ES2291573T3 (es) 2008-03-01
DE60315456T2 (de) 2008-05-08
DE60315456D1 (de) 2007-09-20
EP1516953A1 (en) 2005-03-23
ATE369456T1 (de) 2007-08-15
SI1516953T1 (sl) 2008-02-29

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