EP0407272A1 - Waschmaschine mit verbessertem Spülen und geringem Wasserverbrauch - Google Patents
Waschmaschine mit verbessertem Spülen und geringem Wasserverbrauch Download PDFInfo
- Publication number
- EP0407272A1 EP0407272A1 EP90401867A EP90401867A EP0407272A1 EP 0407272 A1 EP0407272 A1 EP 0407272A1 EP 90401867 A EP90401867 A EP 90401867A EP 90401867 A EP90401867 A EP 90401867A EP 0407272 A1 EP0407272 A1 EP 0407272A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- rinsing
- spin
- intensity
- speed
- 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
Links
Images
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
- D06F39/06—Arrangements for preventing or destroying scum
-
- 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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/38—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
Definitions
- the present invention relates to a washing machine with improved rinsing and economical in water.
- Known washing machines usually include in their rinsing cycle several rinses which each include the following operations: filling the tank with water, stirring the laundry by rotating the washing drum and emptying the tank.
- Some rinses are completed during the emptying of the tank by a spin of the laundry called intermediate spin which allows to extract from this laundry a relatively large amount of detergent water retained by this laundry.
- the earlier the intermediate spins start in the first rinses and the greater the speed of these intermediate spins of the laundry the greater the quantity of detergent water extracted from this laundry.
- the greater this quantity of detergent water extracted from the laundry the lower the residual quantity of detergent water retained in the laundry thus spun.
- the residual quantity of detergent water retained by the laundry spun in a previous rinse is low, the pollution of the bath of a subsequent rinse by this residual detergent water is also low.
- the essential number of rinsing of the laundry in the rinsing cycle is then low and the quantity of water consumed by these rinses is consequently advantageously reduced.
- the aim of the present invention is to avoid these drawbacks and makes it possible to produce a rinsing washing machine improved in quality and economical in water, with intermediate spins carried out at relatively high speeds.
- a washing machine with improved rinsing and economical in water comprises, at the end of each rinsing of its rinsing cycle and during an emptying of its tank, an intermediate spin of the laundry to a selected high speed, an interruption of this intermediate spin as soon as a formation of a foaming emulsion reaches a predetermined degree of importance, and a re-establishment of this spinning after an evacuation of this foaming emulsion by a drain pump, this interruption and this recovery being renewed until this intermediate spin of the laundry can be achieved at the selected high speed.
- a washing machine 1 produced according to 1 invention and illustrated in FIGS. 1 to 3, comprises a body 2, a tank 3, a washing drum 4 rotating around a horizontal axis 5 and driven in rotation by an electric motor 7, and a pump 8 for emptying the tank 3.
- the washing machine 1 mainly comprises in its operation a prewash cycle, a washing cycle, a rinsing cycle and a final spin cycle.
- the rinsing cycle comprises several rinses, each of which begins with a filling of the tank with water then a mixing of the laundry in this water and finally ends with a draining of this tank 3, accompanied by a spinning of the so-called intermediate spinning which makes it possible to extract a relatively large amount of water from this linen.
- the detergent water retained by a cloth at the outlet of a previous rinsing is diluted by the bath of a following rinsing then extracted from this cloth and evacuated with this bath in towards the outside by the drain pump 8.
- the washing machine 1 comprises at the end of each of the rinses of its rinsing cycle and during an emptying of the tank 3, an intermediate spin of the laundry at a selected high speed, an interruption of this intermediate spin as soon as that a formation of a frothy emulsion reaches a degree of importance predetermined and a recovery of this spin at high speed after evacuation of this foaming emulsion by the drain pump, this interruption and this recovery being renewed until this intermediate spin can be performed at the selected high speed.
- the high speed chosen for the intermediate spins is preferably between 400 revolutions per minute and 1000 revolutions per minute.
- a foaming emulsion may form. If the spin continues, this frothy emulsion becomes more and more abundant and dense, hinders the evacuation of detergent water from the tank and results in the formation, with this non-evacuated water, of a ring of a frothy emulsion around of the washing machine, which generates an unpleasant noise and a soft overflow.
- a stop of this spinning interrupts the development of this foaming emulsion, and facilitates rapid evacuation by the drain pump 8 of this washing water and this foaming emulsion accumulated in the tank 3.
- the intermediate spinning of the laundry at a selected high speed is restored to extract a maximum quantity of washing water retained by this washing and leave in this washing a minimum residual quantity of washing water which pollutes the bath of a subsequent rinsing. Thanks to this high speed spin, the essential number of rinses in a rinse cycle can be reduced to a minimum as well as the amount of water consumed by these rinses. Improved rinsing of the laundry is thus obtained with an appreciable saving in rinsing water.
- a formation of a foaming emulsion reaching a predetermined degree of importance during an intermediate spin of the laundry is detected by means of a measurement of a growth in the intensity of the electric current of the laundry drum drive taking place during of a period at stabilized speed of this spinning and at the moment when a preset value of this growth in the intensity of electric current, which corresponds to this predetermined degree of importance of this formation of the foaming emulsion is reached.
- the interval t3 t5 where the speed of the drum 4 is stabilized at 400 revolutions per minute, first in the case of washing the laundry without detergent, the intensity goes down in the interval t3-t4 from the value 13 to a lower value 14 and continues to go down to an i5 value less than 14 (figure 2, curve A) and then in the case of washing the laundry with detergent, the intensity also drops from the v alor 13 at a lower value 14 in the interval t3-t4 but this intensity rises from the value i4 to a higher value i5 in t5 ( Figure 3, curve A) in the interval t4-t5.
- This intensity of the current in the motor 7 thus faithfully reflects the degree of importance of formation of the foaming emulsion in the tank 3.
- the washing machine comprises at the end of each of the rinses of its rinsing cycle and during a drain, an intermediate spin of the laundry, at a high speed chosen with a speed increase in stages, a measuring a growth in the intensity of the electric current of the laundry drum drive motor occurring during each of these stages, that is to say periods when the rotational speeds of the drum are stabilized in this increase in the intermediate spin speed, an interruption of this spin as soon as this increase in the intensity of electric current reaches a preset value corresponding to a predetermined degree of importance of a formation of a frothy emulsion in the tank 3 and a re-establishment of this spin at high speed after evacuation of this frothy emulsion by the drain pump) this interruption and this re-establishment is re new until this intermediate spin can be performed at the selected high speed.
- this speed is obtained by an increase in speed in successive stages for example by pallers at speeds stabilized at 100, 300, 450, 850 revolutions per minute. Measurements of growth of the intensity of the electric current of the drive motor 7 of the laundry drum 4 are carried out during each of these speed steps where the speeds of the laundry drum 4 are respectively stabilized at 100, 300, 450 and 850 rpm.
- the intermediate spin is interrupted to allow evacuation of the washing water and the foaming emulsion from the tank 3, by this drain pump, and restored again after this evacuation until this intermediate spin of the laundry can be done at a selected high speed.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8908963 | 1989-07-04 | ||
FR8908963A FR2649422B1 (fr) | 1989-07-04 | 1989-07-04 | Lave-linge a rincage ameliore et economique en eau |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0407272A1 true EP0407272A1 (de) | 1991-01-09 |
EP0407272B1 EP0407272B1 (de) | 1995-03-29 |
Family
ID=9383443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90401867A Expired - Lifetime EP0407272B1 (de) | 1989-07-04 | 1990-06-28 | Waschmaschine mit verbessertem Spülen und geringem Wasserverbrauch |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0407272B1 (de) |
DE (1) | DE69018145T2 (de) |
ES (1) | ES2070290T3 (de) |
FR (1) | FR2649422B1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000029660A1 (en) * | 1998-11-17 | 2000-05-25 | Fisher & Paykel Limited | Laundry machine |
WO2007074037A1 (en) * | 2005-12-29 | 2007-07-05 | Arcelik Anonim Sirketi | A washing machine and a control method |
EP2746444A1 (de) * | 2012-12-21 | 2014-06-25 | Electrolux Home Products Corporation N.V. | Verfahren zur Steuerung einer Waschmaschine und Waschmaschine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016204347A1 (de) * | 2016-03-16 | 2017-09-21 | BSH Hausgeräte GmbH | Verfahren zum Betrieb eines wasserführenden Haushaltsgeräts mit verbessertem Pumpbetrieb |
CN108179586B (zh) * | 2018-01-27 | 2019-12-27 | 深圳市景方盈科技有限公司 | 一种洗衣机泡沫控制方法 |
CN110396801A (zh) * | 2018-01-27 | 2019-11-01 | 张太平 | 一种防泡沫溢出洗衣机 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2175124A1 (de) * | 1972-03-07 | 1973-10-19 | Philips Nv | |
FR2546540A1 (fr) * | 1983-05-27 | 1984-11-30 | Thomson Brandt | Lave-linge a essorage de courte duree apres le rincage |
EP0268155A2 (de) * | 1986-11-11 | 1988-05-25 | Licentia Patent-Verwaltungs-GmbH | Waschmaschine mit Vorrichtung zur Vermeidung von Schaumbildung |
-
1989
- 1989-07-04 FR FR8908963A patent/FR2649422B1/fr not_active Expired - Fee Related
-
1990
- 1990-06-28 EP EP90401867A patent/EP0407272B1/de not_active Expired - Lifetime
- 1990-06-28 DE DE69018145T patent/DE69018145T2/de not_active Expired - Fee Related
- 1990-06-28 ES ES90401867T patent/ES2070290T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2175124A1 (de) * | 1972-03-07 | 1973-10-19 | Philips Nv | |
FR2546540A1 (fr) * | 1983-05-27 | 1984-11-30 | Thomson Brandt | Lave-linge a essorage de courte duree apres le rincage |
EP0268155A2 (de) * | 1986-11-11 | 1988-05-25 | Licentia Patent-Verwaltungs-GmbH | Waschmaschine mit Vorrichtung zur Vermeidung von Schaumbildung |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000029660A1 (en) * | 1998-11-17 | 2000-05-25 | Fisher & Paykel Limited | Laundry machine |
WO2007074037A1 (en) * | 2005-12-29 | 2007-07-05 | Arcelik Anonim Sirketi | A washing machine and a control method |
EP2746444A1 (de) * | 2012-12-21 | 2014-06-25 | Electrolux Home Products Corporation N.V. | Verfahren zur Steuerung einer Waschmaschine und Waschmaschine |
WO2014095752A1 (en) * | 2012-12-21 | 2014-06-26 | Electrolux Home Products Corporation N.V. | Method for controlling a laundry washing machine and laundry washing machine |
CN104919106A (zh) * | 2012-12-21 | 2015-09-16 | 伊莱克斯家用产品股份有限公司 | 用于控制洗衣机的方法和洗衣机 |
US9828716B2 (en) | 2012-12-21 | 2017-11-28 | Electrolux Home Products Corporation N.V. | Method for controlling a laundry washing machine and laundry washing machine |
Also Published As
Publication number | Publication date |
---|---|
EP0407272B1 (de) | 1995-03-29 |
FR2649422A1 (fr) | 1991-01-11 |
ES2070290T3 (es) | 1995-06-01 |
DE69018145T2 (de) | 1995-08-03 |
DE69018145D1 (de) | 1995-05-04 |
FR2649422B1 (fr) | 1992-01-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0143685B1 (de) | Verfahren zum Ermitteln der Wäschemenge in einer drehenden Trommel und Waschmaschine und/oder Wäschetrockner zur Durchführung dieses Verfahrens | |
JP3170140B2 (ja) | 脱水兼用洗濯機 | |
JP3953129B2 (ja) | 洗濯機 | |
EP0407272B1 (de) | Waschmaschine mit verbessertem Spülen und geringem Wasserverbrauch | |
EP1707663B1 (de) | Verfahren zum steuern eines oder mehrerer parameter eines waschvorgangs und maschine für ein derartiges verfahren | |
FR2640289A1 (fr) | Procede de lavage du linge et lave-linge mettant en oeuvre ce procede | |
EP1852537B1 (de) | Verfahren zur Optimierung des Betriebszyklus einer Waschmaschine und Waschmaschine, bei der dieses Verfahren angewandt wird | |
FR2639661A1 (fr) | Machine a laver commandee par programme | |
FR2645553A1 (fr) | Procede de commande de la vitesse de rotation du tambour pour des machines domestiques a laver le linge et dispositif pour la mise en oeuvre du procede | |
FR2655363A1 (fr) | Lave-linge dont la vitesse de rotation du tambour varie en fonction de la charge. | |
FR2501736A1 (fr) | Machine a laver et a essorer le linge, a tambour | |
JP2001113088A (ja) | 脱水兼用洗濯機 | |
FR2726583A1 (fr) | Machine a laver et secher le linge a phase anti-mousse | |
EP0159204A1 (de) | Waschmaschine mit einem leicht über den Trommelboden reichenden Wasserstand | |
FR2632328A1 (fr) | Procede d'optimisation de l'essorage a plein regime, notamment de machines a laver | |
JPH0310359B2 (de) | ||
FR2632665A1 (fr) | Lave-linge pourvu d'une phase de trempage | |
EP0427599A1 (de) | Horizontaltrommel-Waschmaschine mit einer in Turbulenz befindlichen Waschlauge | |
FR2687176A3 (en) | Washing machine with programmable control | |
BE517430A (de) | ||
FR2642442A1 (fr) | Procede pour la realisation de programmes pour des machines a laver et dispositif pour la mise en oeuvre du procede | |
FR3045680B1 (fr) | Procede de fonctionnement d'un appareil a laver le linge selon un ensemble de parametres de fonctionnement | |
JPH07323181A (ja) | 全自動洗濯機 | |
KR100642368B1 (ko) | 교반식 세탁기의 구동모터 제어방법 | |
KR100722039B1 (ko) | 교반식 세탁기의 세탁방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR IT |
|
17P | Request for examination filed |
Effective date: 19910617 |
|
17Q | First examination report despatched |
Effective date: 19940112 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR IT |
|
ITF | It: translation for a ep patent filed |
Owner name: JACOBACCI & PERANI S.P.A. |
|
REF | Corresponds to: |
Ref document number: 69018145 Country of ref document: DE Date of ref document: 19950504 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2070290 Country of ref document: ES Kind code of ref document: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19970522 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19970620 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19970630 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 19980629 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990226 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990401 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20000301 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050628 |