EP1204792B1 - Wäschebehandlungsmaschine - Google Patents

Wäschebehandlungsmaschine Download PDF

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Publication number
EP1204792B1
EP1204792B1 EP00956360A EP00956360A EP1204792B1 EP 1204792 B1 EP1204792 B1 EP 1204792B1 EP 00956360 A EP00956360 A EP 00956360A EP 00956360 A EP00956360 A EP 00956360A EP 1204792 B1 EP1204792 B1 EP 1204792B1
Authority
EP
European Patent Office
Prior art keywords
heating chamber
laundry
pumping
solution container
laundry treatment
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
EP00956360A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1204792A1 (de
Inventor
Edwin Bolduan
Harald MOSCHÜTZ
Horst Wiemer
Karl Thier
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to SI200030703T priority Critical patent/SI1204792T1/xx
Publication of EP1204792A1 publication Critical patent/EP1204792A1/de
Application granted granted Critical
Publication of EP1204792B1 publication Critical patent/EP1204792B1/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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating 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 laundry treatment machine containing a tub, a laundry absorbing laundry drum rotatable in the tub is arranged, a pumping device with a pump for recirculation of Wash treatment liquid from the bottom of the tub back into the Laundry drum, at least one electric radiator in a heating chamber at the bottom Part of the tub, a provided in the heating chamber Umpump inlet opening the Umpumpvorraum and a device for pumping the no longer required lye.
  • a laundry treatment machine is in the context of the invention, in particular a Washing machine, but can also be a machine for rinsing and / or impregnation be of laundry. These other features can also be used in a washing machine be integrated.
  • a laundry treatment machine of the aforementioned type is known from DE 3401 899 A1 known. It shows a washing machine with a cylindrical tub and with a coaxially disposed therein, rotatable laundry drum.
  • the deepest part of the lye tank is in fluid communication with a water tank disposed below it, in which an electric heating element is arranged.
  • a Umpump inlet opening of a pumping device for the recirculation of liquor back into the tub in the upper area.
  • an exhaust pump inlet opening a pumping device for pumping lye at the end of a washing process. In both pumping devices is ever a pump.
  • the pumping device Since the pumping device opens at the bottom of the water tank, can during pumping the heating element are exposed. It is therefore not certain that the Lye level is always sufficient above the electric heating element to a dry operation to avoid the heating element.
  • the pump of the pumping device is likely from the water tank under the tub suck lye only if the Heating elements are electrically switched off. In the tub but should only possible a lot of water, as can be absorbed by the laundry in the drum. This would mean that the heating element can be switched on too rarely and the Heating process would therefore take an unreasonable time.
  • the Radiator To the formation of vapor bubbles over the radiator and overheating of the radiator As well as the surrounding components and the laundry must be prevented, the Radiator must be covered with water in all operating situations. This will Usually achieved in that before the start of the heating phase of the tub so is filled with water until it reaches a water level at which the radiator covered with water. The detection of this level can be done by at the lower part of the Lye tank or pump sump mounted pressure switch, by measuring the dynamic pressure on the pump pressure side of the pumping device or by a Paddle switch in the flow path of the circulating pump (DE 43 32 225 A1) done.
  • a disadvantage of the known arrangements is that due to the movement of the Tumble caused turbulence in the wash liquor a liquor level must be, which is clearly above the radiator. A reduction the free fleet during the heating phase is therefore limited by this level down.
  • the "free liquor” is the proportion of the wash liquor which does not wash is sucked up.
  • the heating chamber as a formed on the tub bottom integrally formed trough, the side walls of the Radiators are so close to each other that they are in the operation of the treatment liquid surrounding radiator not yet overheated, that the pumping inlet opening the Umpümpvortechnisch in the heating chamber above the at least one radiator is arranged and that between the heating chamber and the pumping device a Reflux is arranged, which a return flow from the pumping device in prevents the heating chamber.
  • the invention provides the advantage that the proportion of the free fleet essential is reduced and at the same time to always sufficient coverage of the radiator secured with liquid required minimum amount of water, compared to the measures but can still be reduced from the prior art.
  • the side walls extend from the Circumferential course of the wall of the tub in one piece down.
  • the trough is a heating chamber housing formed, which formed on the underside of the tub and with the lowest point of the tub through a through hole in flow communication is held, whose horizontal cross-section is substantially smaller than the horizontal Cross section of the heating chamber housing.
  • a pump down inlet opening of a pumping device is at a lowest point of the heating chamber a pump down inlet opening of a pumping device connected.
  • the non-return valve is preferably a check valve.
  • an electrical control device and a Fresh water supply device for the controlled supply of fresh water in the laundry drum provided depending on the liquid level in the heating chamber.
  • the electrical control device is preferably a part of existing in washing machines Control device which several optional washing programs and optionally includes further laundry treatment programs.
  • the laundry treating machine according to the invention is preferably a washing machine, However, it can also be another machine for rinsing or strengthening the laundry with tonic or otherwise treating the laundry with liquid.
  • a Washing machine can do all these laundry treatment functions in the form of different Programs include.
  • the laundry treating machine of Fig. 1 includes a machine housing 2 a non-rotating tub 4 and therein a laundry drum 6, which order a horizontal axis of rotation is rotatably mounted.
  • a laundry drum 6 In the laundry drum 6 are pieces of laundry 8 indicated, which by driver 10 on the inner circumference of the laundry drum 6 are raised when turning this laundry drum 6 and fall down again. As a result, a constant redeployment of the laundry items 8 takes place.
  • Fresh water is supplied from an open-close valve 14 from a fresh water line 12 a detergent container 16, which detergent, detergent, Wäschephasesch or may contain another laundry treatment agent introduced into the laundry drum 6.
  • a detergent container 16 which detergent, detergent, WäscheParker or may contain another laundry treatment agent introduced into the laundry drum 6.
  • the valve 14 is connected to an electronic control device 18 connected.
  • a Umpumpvorraum 20 For constant flooding of the laundry items 8 with the treatment liquid is a Umpumpvorplatz 20 with a pump 22, a suction line 24 on the suction side and a pressure line 26 on the pressure side of the pump 22 is provided.
  • the pressure line 26 the treatment liquid recirculates from the lower end of the laundry drum 6 or the Lye container 4 back into the laundry drum 6 on the laundry items.
  • the tub 4 is formed at its lower end (bottom) with a downwardly shaped Well 28 provided, which forms a heating chamber 30, in which at least one electrical heating element 32 is arranged, preferably a tubular heater.
  • a pumped inlet port 34 of the suction line 24 of the pumping device 20 is in a side wall 36 so far above the radiator 32 formed that even when falling off the Liquid levels of the free liquor of the treatment liquid in the trough 28 of the Radiator 32 still sufficient with treatment liquid (washing or rinsing eye or the like) to vapor bubble over the heater body 32 and to avoid overheating of this radiator 32.
  • the suction line 40 of the pump 42 is a pumping device 44 fluidly connected.
  • a Pressure line 46 On the pressure side of the pump 42 is a Pressure line 46, preferably a hose, for discharging the treatment liquid from the trough 28 and thus arranged from the entire washing machine.
  • a reflux barrier 48 In the transition between the trough 28 and the suction line 40 is a reflux barrier 48, preferably in the form of a check valve.
  • This reflux barrier 48 is automatically closed when the liquid pressure in the suction line 40 of the pumping device 44 is greater than in the trough 28. This is a backflow of Treatment liquid from the pressure line 46 with the pump 42 is switched off the pumping device 44 back into the trough 28 prevented.
  • the pressure line 46 (hose) of the pumping device 44 extends from that in the Machine bottom pump 42 is up to a height that is essential is higher than the maximum liquid level in and above the trough 28 in her resulting fluid pressure back through the shut-off pump 42 and the Suction line 40 to the remindflußsperre 48 greater than the liquid pressure in the trough 28.
  • the return valve 48 is closed even when the pump 22 of the Umpumpvortechnisch 20 treatment liquid from the trough 28 in the laundry drum 6 is recirculated while the pump 42 of the pumping device 44 is turned off.
  • the backstop can be provided, for example, by spring means be forced into the closed position, the back pressure lock in all cases automatically opens when the pump 42 of the pumping device 44 is turned on.
  • the trough 28 may be an integral part of the tub 4.
  • FIG. 2 is structurally and functionally identical to the Embodiment of Fig. 1, with the exception that the heating chamber 30 is not in one Trough of the tub 4, but by a to the lower end of the tub 4 subsequent Schuschgeophuse 50 is formed, which has a vertical Through opening 52 (preferably a longitudinal slot) with the interior of the Laugen essenceers 4 at the lower end is in flow communication.
  • the passage opening 52 has a much smaller horizontal cross section than the heating chamber 30. This avoids even more than in Fig. 1, that by rotational movements the washing drum 6 shaft movements of the treatment liquid over the Radiators 32 arise in the consideration of the minimum level to avoid overheating of the radiator would have to be considered.
  • the same parts as in Fig. 1 are provided in Fig. 2 with the same reference numerals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Disintegrating Or Milling (AREA)
EP00956360A 1999-07-30 2000-07-31 Wäschebehandlungsmaschine Expired - Lifetime EP1204792B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200030703T SI1204792T1 (en) 1999-07-30 2000-07-31 Laundry treating machine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19935987 1999-07-30
DE19935987A DE19935987A1 (de) 1999-07-30 1999-07-30 Wäschebehandlungsmaschine
PCT/EP2000/007389 WO2001009426A1 (de) 1999-07-30 2000-07-31 Wäschebehandlungsmaschine

Publications (2)

Publication Number Publication Date
EP1204792A1 EP1204792A1 (de) 2002-05-15
EP1204792B1 true EP1204792B1 (de) 2005-04-06

Family

ID=7916679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00956360A Expired - Lifetime EP1204792B1 (de) 1999-07-30 2000-07-31 Wäschebehandlungsmaschine

Country Status (7)

Country Link
EP (1) EP1204792B1 (xx)
AT (1) ATE292704T1 (xx)
DE (2) DE19935987A1 (xx)
ES (1) ES2240149T3 (xx)
PL (1) PL201980B1 (xx)
TR (1) TR200200031T2 (xx)
WO (1) WO2001009426A1 (xx)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2455532A1 (en) 2010-11-22 2012-05-23 Electrolux Home Products Corporation N.V. Washing machine
WO2012069288A1 (en) 2010-11-22 2012-05-31 Electrolux Home Products Corporation N.V. Method of operating a washing machine and washing machine
EP2503050A1 (en) 2011-03-24 2012-09-26 Electrolux Home Products Corporation N.V. Washing machine comprising a filter element
EP2535454A1 (en) 2011-06-14 2012-12-19 Electrolux Home Products Corporation N.V. Washing machine
EP2570544A1 (en) 2011-09-15 2013-03-20 Electrolux Home Products Corporation N.V. Washing machine
EP2829651A3 (en) * 2013-07-04 2015-05-06 Dongbu Daewoo Electronics Corporation Washing machine and washing method thereof
DE102015212738A1 (de) 2015-07-08 2017-01-12 BSH Hausgeräte GmbH Wäschepflegegerät und Wäschepflegeverfahren
DE102015212742A1 (de) 2015-07-08 2017-01-12 BSH Hausgeräte GmbH Wäschepflegegerät und Wäschepflegeverfahren

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10209975A1 (de) * 2002-03-07 2003-09-25 Bsh Bosch Siemens Hausgeraete Elektrisch beheizbare Waschmaschine
KR20080087597A (ko) 2007-03-27 2008-10-01 삼성전자주식회사 세탁기
EP2998426B1 (en) 2014-09-16 2017-11-15 Electrolux Appliances Aktiebolag Washing machiine having an improved valve/filter assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401899A1 (de) * 1984-01-20 1985-07-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Trommelwaschmaschine fuer den haushalt
IT1181078B (it) * 1984-11-20 1987-09-23 Zanussi Elettrodomestici Macchina lavabiancheria
IT1246260B (it) * 1990-07-03 1994-11-17 Zanussi Elettrodomestici Dispositivo di misurazione del carico dell'acqua per macchine lavatrici.
DE4332225B4 (de) * 1993-06-07 2006-09-28 BSH Bosch und Siemens Hausgeräte GmbH Automatisch gesteuerte Waschmaschine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2455532A1 (en) 2010-11-22 2012-05-23 Electrolux Home Products Corporation N.V. Washing machine
WO2012069288A1 (en) 2010-11-22 2012-05-31 Electrolux Home Products Corporation N.V. Method of operating a washing machine and washing machine
EP2762632A1 (en) 2010-11-22 2014-08-06 Electrolux Home Products Corporation N.V. Washing method
EP2503050A1 (en) 2011-03-24 2012-09-26 Electrolux Home Products Corporation N.V. Washing machine comprising a filter element
EP2535454A1 (en) 2011-06-14 2012-12-19 Electrolux Home Products Corporation N.V. Washing machine
EP2570544A1 (en) 2011-09-15 2013-03-20 Electrolux Home Products Corporation N.V. Washing machine
EP2829651A3 (en) * 2013-07-04 2015-05-06 Dongbu Daewoo Electronics Corporation Washing machine and washing method thereof
DE102015212738A1 (de) 2015-07-08 2017-01-12 BSH Hausgeräte GmbH Wäschepflegegerät und Wäschepflegeverfahren
DE102015212742A1 (de) 2015-07-08 2017-01-12 BSH Hausgeräte GmbH Wäschepflegegerät und Wäschepflegeverfahren
WO2017005382A1 (de) 2015-07-08 2017-01-12 BSH Hausgeräte GmbH Wäschepflegegerät und wäschepflegeverfahren

Also Published As

Publication number Publication date
ES2240149T3 (es) 2005-10-16
ATE292704T1 (de) 2005-04-15
DE19935987A1 (de) 2001-02-01
TR200200031T2 (tr) 2002-05-21
PL354460A1 (en) 2004-01-12
DE50010001D1 (de) 2005-05-12
WO2001009426A1 (de) 2001-02-08
PL201980B1 (pl) 2009-05-29
EP1204792A1 (de) 2002-05-15

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