EP2110473B1 - Waschtrockner mit einer belüfteten Trommel - Google Patents

Waschtrockner mit einer belüfteten Trommel Download PDF

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Publication number
EP2110473B1
EP2110473B1 EP09100226.1A EP09100226A EP2110473B1 EP 2110473 B1 EP2110473 B1 EP 2110473B1 EP 09100226 A EP09100226 A EP 09100226A EP 2110473 B1 EP2110473 B1 EP 2110473B1
Authority
EP
European Patent Office
Prior art keywords
washer
dryer
condenser
air
tub
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
EP09100226.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2110473A2 (de
EP2110473A3 (de
Inventor
Edwin Bolduan
Alexander Schlitzer
Dieter Schröder
Andreas Stolze
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2110473A2 publication Critical patent/EP2110473A2/de
Publication of EP2110473A3 publication Critical patent/EP2110473A3/de
Application granted granted Critical
Publication of EP2110473B1 publication Critical patent/EP2110473B1/de
Active 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the invention relates to a washer-dryer with a tub and a drum rotatably disposed therein for receiving laundry, a water intake line and a water drainage line, a ventilation duct which connects the tub to an environment of the washer dryer, and a drying duct comprising a condenser with an associated spraying device for spraying the condenser with a liquid, a blower for driving an air flow from an inlet to an outlet through the drying duct, and a heater for heating the air flow, the heater being located downstream relative to the condenser and the drying duct at the inlet and the outlet opens into the tub.
  • Such a washer dryer is apparent from the EP 0 499 029 A1 ,
  • the condenser in the drying channel is designed so that the cooling of the moisture-enriched air stream is effected by the injection of water.
  • Behind the condenser and in front of the fan opens a secondary air duct, through which air from the upper interior of the washer dryer is sucked into the drying duct. This is done primarily to use waste heat, through which the air is heated in the upper interior.
  • a detergent feed channel which connects the tub to a detergent dispenser.
  • this air also contains moisture, it is a part of the collected in the tub and pumped from there with the drain pump condensate supplied in countercurrent to also condense this moisture.
  • the drain pump condensate supplied in countercurrent to also condense this moisture.
  • a free air gap is a device in which an otherwise guided in a line liquid, especially fresh water, is passed open to the surrounding air; If a negative pressure occurs in the line, air is sucked into the line through the free air gap, so that the connection to line parts behind the free air gap is interrupted.
  • these versions apply to the return suction test as well as to any other water-bearing household appliance.
  • One aspect relevant to marketing a washing machine or washer-dryer in the USA is to provide adequate ventilation of the drum in the event a child gets into the drum and the door of the machine is closed.
  • Such and other aspects that are of importance to the design of a worldwide marketable washer dryer are referred to EP 0 829 568 B1 , the DE 199 21 441 A1 and the WO 2005/031058 A1 directed. Ventilation systems that meet such requirements can also cause unwanted leakages of process air in a washer-dryer, as described above.
  • An object of the invention is to provide a further developed washer-dryer of the type defined in the introduction, the ventilation device of which meets all the criteria described above.
  • the possibility of spraying the capacitor with liquid should be maintained in order to clean the condenser of lint, which are finest fibers that detach during drying of the laundry to be dried and precipitate preferentially because of the prevailing humid conditions there.
  • the washing dryer with a tub and a rotatably mounted drum for receiving laundry, a water inlet strand and a water drainage line, a ventilation duct, which connects the tub to an environment of the washer dryer, and a drying duct comprising a condenser with an associated spraying device for spraying the capacitor with a liquid, a blower for driving an air flow from an inlet to an outlet through the drying duct and a heater for heating the air flow, wherein the heater is arranged downstream with respect to the condenser and wherein the drying duct at the inlet and the outlet in the Leach container opens, characterized by the fact that the condenser is adapted for the indirect cooling of the air flow, and that the spray device has a separate from the drying channel and communicating with this free air gap, the B Discharge duct is connected to the free air gap and a flushing housing belonging to the water intake line.
  • an indirectly cooled condenser is provided in the washer-dryer, which means that there is no direct, direct contact between the coolant used in each case and the air flow by means of which the laundry is dried.
  • the use of cold fresh water for cooling in the condenser is thus excluded.
  • a particularly economical washer-dryer is created with regard to the valuable resource that is freshwater, and an attractive alternative to the currently predominantly marketed washer-dryers with water-cooled condensers, also from the point of view of the responsible use of natural resources.
  • a ventilation system is provided in such a washer-dryer, which can meet all listed requirements and in addition to compliance with the listed safety requirements, the possibility of purging of the capacitor with liquid, especially condensate or fresh water offers.
  • the necessary at least one free air gap of the water intake line between the fresh water connection of the washer dryer and the Ein Hughesgepatuse which in turn is open to the surrounding air, is the closed process air circuit of the washer dryer through the water inlet line between the tub and the Ein Hughesgephase one hand and through the free air gap of the spray on the other hand in conjunction with the surrounding air.
  • pressure equalization may be provided by a counterbalance flow of process air flowing through the water inlet duct and the ventilation duct in a substantially closed loop , An undesirable leakage of moist process air is thereby reliably avoided.
  • the direction of the compensation flow depends in particular on the positioning of the fan in the drying channel; it is not essential to the basic function of pressure equalization without leakage.
  • the spraying device is arranged downstream of the condenser. So, rinsing off the condenser can help eliminate it be carried out of lint in countercurrent to the flowing process air and the condenser following the region of the drying channel are best kept free of lint.
  • the blower is arranged between the spray device and the heater.
  • the fan is kept largely free of lint and a particularly long undisturbed operation of the blower secured.
  • the spraying device lies in its immediate intake region, that is to say in a region of particularly low pressure within the circulation of the circulating process air in the drying duct.
  • the tub follows, however, just behind the blow-out of the fan and thus in a range of particularly high pressure within the circuit of the circulating process air. This results in a compensation flow, which leaves the circuit through the water intake line and flows back through the ventilation duct and the sprayer. It can not come to a leak of moist process air through the Ein Thoughgephase.
  • the water intake line can have a siphon disposed between the flushing housing and the tub; such a siphon may be useful for trapping and keeping the vapor and odor that may result from a relatively high temperature washing process away from the dispenser housing.
  • a siphon would reduce or eliminate the above-mentioned equalizing current, but in no way compromises the achievement of the objective of avoiding unwanted leakage of moist process air.
  • the siphon can cause condensation of entrained moisture from the equalizing current, which additionally serves the stated purpose.
  • the condenser is an air-cooled condenser.
  • the heater is an electrical heater.
  • the condenser and the heater by a heat pump in that the condenser is a heat sink and the heater is a heat source of the heat pump.
  • a heat pump which is known in any case for simple tumble dryers in various embodiments, heat that is extracted from the process air in the condenser, pumped to the heater and fed back to the process air there.
  • This pumping process requires a certain amount of energy according to the basic rules of thermodynamics and never happens without a minimal loss of energy; However, the use of a heat pump can always allow a still less energy consuming drying process.
  • Such a heat pump may be embodied as a compressor heat pump in which a refrigerant circulates, which is cyclically vaporized in the condenser by absorbing heat from the air flow and liquefied in the condenser to release heat to the air flow.
  • a heat pump operating by means of a reversible sorption process, a regenerative gas circulation process or the Peltier effect.
  • the tub in the washer-dryer according to the invention, it is further preferred for the tub to have a center plane perpendicular to a vertical, the inlet below and the outlet above the center plane being attached to the tub.
  • FIG. 1 shows a schematic view of the main functional components of a washer dryer 1, which are real to arrange in accordance with current practice in a housing not shown here and to connect to a control device also not shown here for the purpose of control according to predetermined programs.
  • the washer-dryer 1 comprises a lye container 2 for receiving wash liquor for a washing process, in which lye container 2 a drum 3 for receiving the laundry 4 to be treated is arranged. It comprises a water supply line 5 to be connected to a water supply network with a controllable water supply valve 6.
  • the water supply line 5 opens into a dispensing housing 7, in which a withdrawable dispenser 8 for presenting Laundry products such as detergent and softener is located.
  • the Laugenzumolus Archer 9 includes a siphon 10, which in particular in washing processes at relatively Run off high temperature, as odor barrier between the tub 2 and the environment of the washer dryer 1 is used.
  • a water drainage line 11, 12, 13 comprising a connected to the tub 2 Laugenablauftechnisch 11, a drain pump 12 and a riser 13, wherein the riser 13 leads out of the washer-dryer 1 and is to be connected to a sewer system, is for discharging the washing or rinsing and even any wastewater, especially after a washing process, provided.
  • Not shown are presently known details of the connection of the lye drain line 11, for example, a drain valve. With the components mentioned so far, the washer-dryer 1 is equipped to carry out washing processes known per se for washing the laundry 4, the detailed explanation of which is unnecessary here.
  • the washer-dryer 1 In order to be able to carry out drying processes with the washer-dryer 1 for drying the laundry 4, it is equipped with a drying channel 14, 15, 16, 17, 18, 19. This extends from an inlet 14 on the tub 2 to an outlet 19 on It contains a dry air duct 15 for guiding dry air in a substantially closed circuit enclosing the tub 2.
  • a condenser 16 Arranged in the dry air guide 15 are a condenser 16, a fan 17 and a heater 18.
  • the circulating dry air is heated and passes from the heater 18 through the outlet 19 in the tub 2 to absorb moisture from the laundry 5 there. Thereafter, the moisture-laden dry air passes through the inlet 14 to the condenser 16 where it is cooled to condense the moisture in liquid form.
  • the condensate thus produced passes back into the tub 2 and is discharged from there through the water drainage line 11, 12, 13.
  • the dry air freed of moisture passes through the dry air duct on to the fan 17, which drives them in their circulation, and on to the heater 18, where it is reheated to get back into the tub 2 and 5 to the laundry.
  • the condenser 16 is designed as an indirectly cooling condenser 16, as by means of air, which is removed in an open circuit from the environment of the washer dryer 1 and discharged after flowing through the capacitor 16 there again, cooled condenser 16. In the condenser 16 it comes not to the direct contact between the air flow, by means of which the laundry is dried, and the coolant in the condenser 16, as which here air from the environment acts.
  • the heater 18 is designed as an electric heater 18, as it corresponds to a favorable configuration of the washer-dryer 1 in fact.
  • FIG. 1 is understood in this sense as a representative of the configuration of the washer-dryer 1 with a heat pump 16, 18.
  • a heat pump 16, 18 may be embodied as a compressor heat pump in which circulates a refrigerant which is cyclically vaporized in the condenser 16 by absorbing heat from the air flow and liquefied in the condenser 18 to give off heat to the air flow.
  • a heat pump operating by means of a reversible sorption process, a regenerative gas circulation process or the Peltier effect.
  • the circulating dry air entrains the drying laundry fine fiber parts, called lint, and introduces them into the drying channel 14 to 19. Due to the prevailing moisture there, which causes a certain adhesive effect, these fluff preferably precipitate on the condenser 16. Therefore, the capacitor 16 with a Spray device 21 provided, with which its the dry air and the entrained lint from these exposed surfaces sprayed with water and can be cleaned.
  • the spraying device 21 is arranged downstream of the condenser 16 with respect to the flowing dry air and above and in front of the fan 17 with respect to a vertical 25, so that the sprayed water with the lint and as the accumulated condensate through the condenser 16 and through the inlet 14 into the tub 2 can flow.
  • the spray device 21 flows water from said water supply network via a spray line 22 and a controllable spray valve 23 to; the spraying device 21 is briefly operated as required during a drying process, in particular at several times.
  • the washer-dryer 1 requires a defined ventilation in order to control any pressure differences to the environment of the washer-dryer 1 and in particular to prevent uncontrolled escape of liquid or other moisture to ensure a sufficient supply of air in a particular emergency, and at Occurrence of a negative pressure in the water supply network to prevent uncontrolled sucking back of liquid from the washer-dryer 1.
  • the washer-dryer 1 is equipped with a ventilation duct 20. This ventilation duct 20 is laid and connected so that even during a drying process during which it comes due to the flowing dry air to significant pressure differences in the drying duct 14 to 19, leakage of dry air and thus possibly associated leakage of moisture from the washer-dryer 1 can be prevented.
  • the ventilation channel 20 is connected on the one hand to the spray device 21 and on the other hand to the dispenser 8. This is via the dispenser 8 a single contact with the environment of the washer dryer 1, and thus the escape of dry air is excluded in the environment.
  • a second cycle of dry air through the ventilation duct 20 is suppressed by the siphon 10 in the Laugenzumoltechnisch 9; Liquid that is in the siphon 10, moreover, causes a certain condensation in dry air, which flows in this second circuit through the Laugenzu slaughtertechnisch 9 in the ventilation channel 20.
  • a free air gap 24 is created in the sprayer 21, which communicates with the drying channel 14 to 19, but is spatially distanced from this and so is able to prevent in particular uncontrolled sucking back of liquid in the spray line 22.
  • the inlet 14 is arranged below the median plane 26 and the outlet 19 above the median plane 26 with respect to a vertical 25 and a median plane 26 oriented perpendicular to the vertical 25.
  • FIG. 2 and 3 show views of a concrete embodiment of the arrangement comprising an upper part of the dispenser 8 with parts of the water supply 5 (which is branched in this case according to conventional practice in two parallel parts) and the ventilation channel 20, which leads to the spray device 21, which in turn placed on the capacitor 16 is, wherein also the spray line 22 and a part of the blower 17, designed here as a radial fan, can be seen.
  • FIG. 3 shows details of the spray device 21, in particular the free air gap 24th

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP09100226.1A 2008-04-17 2009-04-06 Waschtrockner mit einer belüfteten Trommel Active EP2110473B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008019388A DE102008019388A1 (de) 2008-04-17 2008-04-17 Waschtrockner mit einer belüfteten Trommel

Publications (3)

Publication Number Publication Date
EP2110473A2 EP2110473A2 (de) 2009-10-21
EP2110473A3 EP2110473A3 (de) 2016-11-30
EP2110473B1 true EP2110473B1 (de) 2018-06-13

Family

ID=40897415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09100226.1A Active EP2110473B1 (de) 2008-04-17 2009-04-06 Waschtrockner mit einer belüfteten Trommel

Country Status (4)

Country Link
EP (1) EP2110473B1 (zh)
CN (1) CN101560724B (zh)
DE (1) DE102008019388A1 (zh)
TR (1) TR201810783T4 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11186943B2 (en) 2017-10-09 2021-11-30 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

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KR101387497B1 (ko) * 2007-08-03 2014-04-21 엘지전자 주식회사 의류처리장치
DE102009029523A1 (de) * 2009-09-17 2011-03-24 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät mit einer Wasservorlageeinrichtung
CN102071563B (zh) * 2009-11-25 2014-03-26 博西华电器（江苏）有限公司 衣物烘干设备
TR201011270A1 (tr) 2010-12-31 2012-07-23 Arçeli̇k Anoni̇m Şi̇rketi̇ Bir yıkayıcı/kurutucu.
US8857071B2 (en) * 2011-03-29 2014-10-14 Lg Electronics Inc. Clothes treating apparatus having heat exchanger cleaning device
CN102767064B (zh) * 2011-05-06 2016-06-01 海尔集团公司 滚筒式洗衣干衣机透气系统及滚筒式洗衣干衣机
TR201106336A1 (tr) * 2011-06-27 2013-01-21 Ar�El�K Anon�M ��Rket� Hava soğutmalı kondenser içeren bir çamaşır yıkama ve kurutma makinası.
DE102011081936A1 (de) * 2011-09-01 2013-03-07 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem Siphon
WO2014102314A1 (en) * 2012-12-28 2014-07-03 Arcelik Anonim Sirketi A laundry washing and drying machine comprising a dispenser
WO2014177176A1 (en) * 2013-04-29 2014-11-06 Arcelik Anonim Sirketi Air-cooled condenser laundry treatment machine with lint collecting means
EP2843100B1 (en) * 2013-08-30 2017-08-09 Electrolux Appliances Aktiebolag Laundry washing/drying appliance having a water filter
DE102014225806A1 (de) 2014-12-15 2016-06-16 BSH Hausgeräte GmbH Haushaltsgerät zum Trocknen von Wäsche
WO2016107699A1 (en) * 2014-12-31 2016-07-07 Arcelik Anonim Sirketi A laundry washing and/or drying machine comprising an air-cooled condenser
CN105839375A (zh) * 2015-01-12 2016-08-10 青岛海尔洗衣机有限公司 一种干衣机控制方法及干衣机
DE102016107884A1 (de) * 2016-04-28 2017-11-02 Miele & Cie. Kg Waschtrockner und Verfahren zum Betreiben eines Waschtrockners
DE102016107887A1 (de) * 2016-04-28 2017-11-02 Miele & Cie. Kg Waschtrockner und Verfahren zum Betreiben eines Waschtrockners
TR201618076A2 (tr) * 2016-12-08 2018-06-21 Arcelik As Kurutma performansi i̇yi̇lşti̇ri̇len bi̇r çamaşir yikama-kurutma maki̇nesi̇
DE102017216516A1 (de) 2017-09-19 2019-03-21 BSH Hausgeräte GmbH Wäschepflegemaschine mit einer Einspülschale und einem Siphon
CN113969489B (zh) * 2020-07-23 2023-10-10 青岛海尔洗衣机有限公司 洗衣设备
TR202021981A2 (tr) * 2020-12-28 2022-07-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Çalişma güvenli̇ği̇ arttirilmiş bi̇r çamaşir yikayici kurutucu
CN115029888A (zh) 2021-03-05 2022-09-09 博西华电器（江苏）有限公司 衣物处理机
CN114753128B (zh) * 2022-04-29 2023-04-07 珠海格力电器股份有限公司 烘干系统以及具有的衣物处理装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11186943B2 (en) 2017-10-09 2021-11-30 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter
US11761141B2 (en) 2017-10-09 2023-09-19 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

Also Published As

Publication number Publication date
EP2110473A2 (de) 2009-10-21
CN101560724B (zh) 2011-01-12
EP2110473A3 (de) 2016-11-30
TR201810783T4 (tr) 2018-08-27
DE102008019388A1 (de) 2009-10-22
CN101560724A (zh) 2009-10-21

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