EP0704567A1 - Vorrichtung zum Vermeiden der Unwucht in Wäschewaschmaschinen - Google Patents
Vorrichtung zum Vermeiden der Unwucht in Wäschewaschmaschinen Download PDFInfo
- Publication number
- EP0704567A1 EP0704567A1 EP95111984A EP95111984A EP0704567A1 EP 0704567 A1 EP0704567 A1 EP 0704567A1 EP 95111984 A EP95111984 A EP 95111984A EP 95111984 A EP95111984 A EP 95111984A EP 0704567 A1 EP0704567 A1 EP 0704567A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- speed
- spin
- drum
- extraction
- washload
- 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
- 238000005406 washing Methods 0.000 title claims abstract description 34
- 238000000605 extraction Methods 0.000 claims abstract description 58
- 238000005259 measurement Methods 0.000 claims description 3
- 238000009987 spinning Methods 0.000 abstract 5
- 238000000034 method Methods 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/16—Imbalance
-
- 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
- D06F33/48—Preventing or reducing imbalance or noise
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/26—Imbalance; Noise level
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
-
- 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
- D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
Definitions
- the present invention refers to a clothes washing machine, such as in particular a household clothes washing machine, provided with improved arrangements capable of measuring and re-balance unbalanced washloads in the rotating drum of such washing machines when the washload undergoes spin-extraction cycles in the same machines.
- the Italian patent application IT PN91A000020 by the same applicant teaches how to detect unbalance conditions on the basis of the phase shift between the absorbed current and the supply voltage of the drum driving motor.
- water will be used in a general way to also mean washing liquor or rinsing water. Such a simplification, however, will not impair the clear comprehensibility of the description owing to the particular context in which said terms are used, as anyone skilled in the art can readily appreciate.
- the clothes washing machine being described comprises a washing tub, a drum that is rotatably mounted within said washing tub and is capable of holding the items forming the washload, a selectively actuatable drain pump, a driving motor adapted to operate at preselectably variable speeds, an arrangement adapted to detect the unbalance condition of the washload in the rotating drum, to selectively compare it with a plurality of pre-determined unbalance levels and to selectively start different actions or operation modes according to the outcome of said comparisons.
- the arrangement monitoring the unbalance condition of the washload in the drum is then activated: if the detected unbalance condition turns out to be lower than a pre-established value B c1 , the spin-extraction phase goes on beyond said time T2; if on the contrary said condition does not occur, the same spin-extraction sequence is brought back to the afore considered time T0, from which the just described sequence then starts again.
- Such a procedure of low-speed rotations BV, low-speed spin-extraction phases CBV and check-ups of the unbalance condition of the washload is repeated automatically until either a lower value than the specified level B c1 is reached or the same procedure has been repeated for a pre-determined maximum number of times.
- the just described procedure is substantially known in the art, so that it shall not be explained here any further.
- the drum is abruptly driven to perform a spin-extraction cycle for a short impulse, which it reaches in correspondence of the time T3 and which lasts for a very short period of time, ie. approx. 3 seconds, at an intermediate speed of usually around 450 rpm.
- the drum RPM is slowed down to the value of the slow-speed spin-extraction sequence CBV and is kept at that value throughout the period extending from the time T7 to the time T8, during which the unbalance condition of the washload is then measured and checked.
- the washload is found to have any greater unbalance than a pre-determined level B c2 , then the whole spin-extraction phase is cycled back to the beginning, ie. to the time T0, since that would practically mean that the unbalance condition is still in excess of what is actually required in order to be able to safely start any further spin-extraction sequence at still higher speeds.
- the existing unbalance condition albeit reduced in its extent, would necessarily have to be accepted as such and, at the same time, it would also be necessary that the spin-extraction speed be anyway limited to a lower value than the highest one VC max provided for by the cycle in order to avoid creating conditions of marked vibrations, with limited-amplitude, but high-frequency oscillations of the machine which, albeit not prohibitive as far as the correct operation and the integrity of the structure of the machine are concerned, would be trasnsmitted through the base of the machine to the floor and, ultimately, the whole room.
- the present invention may be further improved in an advantageous manner through the additions of various features.
- the unbalance condition detected in the time interval T7-T8 is found to be at a level which is below the afore cited pre-determined highest allowable level B c2 , but higher than a pre-determined intermediate level B c3 , the subsequent final spin-extraction sequence may be performed at a speed which is reduced to the value VC1, ie. a value which is slightly lower than the highest spin-extraction speed VC max , but anyway still adequate in order to ensure an acceptable spin-extraction result without giving rise to the undesired vibrations transmitted by the machine.
- Figure 2 is self-explaining for anyone skilled in the art and shows a block diagram illustrating the logical flow of the various sequences of drum rotation, measurement of the washload unbalance condition, and corresponding decision concerning the step to be taken subsequently, with reference to the most important ones cited in this description.
- the measurement of the unbalance condition which is subsequently performed during the intermediate-speed spin-extraction sequence in the time interval T7-T8 has the purpose to ensure that the unbalance level of the washload is as low as to be able to keep within pre-determined limits the vibrations transmitted by the machine to the surrounding structure of the building during the subsequent high-speed final spin-extraction sequence.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Centrifugal Separators (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPN940057 | 1994-09-28 | ||
IT94PN000057A IT1267586B1 (it) | 1994-09-28 | 1994-09-28 | Lavabiancheria con dispositivo perfezionato anti-sbilanciamento |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0704567A1 true EP0704567A1 (de) | 1996-04-03 |
EP0704567B1 EP0704567B1 (de) | 1999-03-24 |
Family
ID=11394949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95111984A Expired - Lifetime EP0704567B1 (de) | 1994-09-28 | 1995-07-31 | Vorrichtung zum Vermeiden der Unwucht in Wäschewaschmaschinen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0704567B1 (de) |
JP (1) | JP3681444B2 (de) |
DE (1) | DE69508510T2 (de) |
ES (1) | ES2132474T3 (de) |
IT (1) | IT1267586B1 (de) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0807706A2 (de) * | 1996-05-14 | 1997-11-19 | ANTONIO MERLONI S.p.A. | Verfahren zum Waschen von Wäsche in einer Waschmaschine, in solch einer Weise, dass sie nicht an der Trommel haftet |
GB2322141A (en) * | 1997-02-12 | 1998-08-19 | Toshiba Kk | Control of spin-drying phase of washing machine |
WO1999053130A2 (en) * | 1998-04-14 | 1999-10-21 | Simsek Tugla | Smart balancing system |
WO2000028128A1 (en) * | 1998-11-10 | 2000-05-18 | Electrolux Zanussi S.P.A. | Method for controlling the off-balance state of the load of a washing machine |
CN1318619C (zh) * | 2004-08-30 | 2007-05-30 | 金川集团有限公司 | 一种钴电解液的除铜方法 |
EP1911869A1 (de) * | 2006-10-12 | 2008-04-16 | Brandt Industries | Verfahren zum Schleudern am Ende eines Waschgangs einer Waschmaschine |
CN102162031A (zh) * | 2011-04-11 | 2011-08-24 | 乔国昌 | 一种钴电解液的除铁方法 |
CN101611186B (zh) * | 2006-12-21 | 2011-10-26 | 菲舍尔和佩克尔应用有限公司 | 改进的衣服器具 |
US8930031B2 (en) | 2008-12-17 | 2015-01-06 | Fisher & Paykel Appliances Limited | Laundry machine |
EP2464778A4 (de) * | 2009-08-11 | 2015-07-01 | Lg Electronics Inc | Steuerungsverfahren für eine waschmaschine |
US9234307B2 (en) | 2009-07-27 | 2016-01-12 | Lg Electronics Inc. | Control method of a laundry machine |
US9249534B2 (en) | 2009-10-13 | 2016-02-02 | Lg Electronics Inc. | Laundry treating apparatus and method |
US9416478B2 (en) | 2009-03-31 | 2016-08-16 | Lg Electronics Inc. | Washing machine and washing method |
US9695537B2 (en) | 2009-07-27 | 2017-07-04 | Lg Electronics Inc. | Control method of a laundry machine |
US9822473B2 (en) | 2009-07-27 | 2017-11-21 | Lg Electronics Inc. | Control method of a laundry machine |
US9932699B2 (en) | 2009-02-11 | 2018-04-03 | Lg Electronics Inc. | Washing method and washing machine |
EP1950336B1 (de) * | 2007-01-24 | 2019-01-02 | Samsung Electronics Co., Ltd. | Waschmaschine mit Ausgleichsreglern und Steuerverfahren dafür |
CN110438747A (zh) * | 2019-07-12 | 2019-11-12 | 合肥美的洗衣机有限公司 | 衣物的识别方法、装置和衣物处理装置 |
US10533275B2 (en) | 2009-07-27 | 2020-01-14 | Lg Electronics Inc. | Control method of a laundry machine |
CN110714300A (zh) * | 2018-06-26 | 2020-01-21 | 青岛海尔洗衣机有限公司 | 用于衣物洗涤设备的平衡修正方法以及衣物洗涤设备 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5978522B2 (ja) * | 2012-06-19 | 2016-08-24 | 東芝ライフスタイル株式会社 | 洗濯乾燥機 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2087103A (en) * | 1980-10-17 | 1982-05-19 | Bosch Siemens Hausgeraete | Electric motor speed controller |
FR2501736A1 (fr) * | 1981-03-10 | 1982-09-17 | Thomson Brandt | Machine a laver et a essorer le linge, a tambour |
FR2546540A1 (fr) * | 1983-05-27 | 1984-11-30 | Thomson Brandt | Lave-linge a essorage de courte duree apres le rincage |
JPS60132598A (ja) | 1983-12-22 | 1985-07-15 | 松下電器産業株式会社 | 脱水アンバランス検出装置 |
JPS60137389A (ja) | 1984-11-21 | 1985-07-20 | 株式会社東芝 | 全自動洗濯機 |
GB2174564A (en) | 1985-05-03 | 1986-11-05 | Hoover Plc | Spin speed control for laundry spin driers |
DE3605924A1 (de) | 1986-02-25 | 1987-08-27 | Licentia Gmbh | Waschmaschine mit einer motorisch angetriebenen wasch- und schleudertrommel |
DE3606819A1 (de) | 1986-03-03 | 1987-09-10 | Licentia Gmbh | Verfahren zur korrektur des unwuchtgroessengrenzwertes fuer eine programmgesteuerte waschmaschine |
FR2629484A1 (fr) | 1988-03-29 | 1989-10-06 | Esswein Sa | Perfectionnement aux moyens de detection de balourds dans les lave-linge |
DE3822924C1 (de) | 1988-07-07 | 1989-11-23 | Miele & Cie Gmbh & Co, 4830 Guetersloh, De | |
FR2645553A1 (fr) * | 1989-04-06 | 1990-10-12 | Licentia Gmbh | 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 |
ITPN910020A1 (it) | 1991-04-03 | 1992-10-04 | Zanussi Elettrodomestici | Dispositivo di misurazione e di equilibratura di carichi squilibrati nel cesto di macchine lavatrici |
-
1994
- 1994-09-28 IT IT94PN000057A patent/IT1267586B1/it active IP Right Grant
-
1995
- 1995-07-31 EP EP95111984A patent/EP0704567B1/de not_active Expired - Lifetime
- 1995-07-31 DE DE69508510T patent/DE69508510T2/de not_active Expired - Lifetime
- 1995-07-31 ES ES95111984T patent/ES2132474T3/es not_active Expired - Lifetime
- 1995-09-28 JP JP25152295A patent/JP3681444B2/ja not_active Expired - Fee Related
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2087103A (en) * | 1980-10-17 | 1982-05-19 | Bosch Siemens Hausgeraete | Electric motor speed controller |
FR2501736A1 (fr) * | 1981-03-10 | 1982-09-17 | Thomson Brandt | Machine a laver et a essorer le linge, a tambour |
FR2546540A1 (fr) * | 1983-05-27 | 1984-11-30 | Thomson Brandt | Lave-linge a essorage de courte duree apres le rincage |
JPS60132598A (ja) | 1983-12-22 | 1985-07-15 | 松下電器産業株式会社 | 脱水アンバランス検出装置 |
JPS60137389A (ja) | 1984-11-21 | 1985-07-20 | 株式会社東芝 | 全自動洗濯機 |
GB2174564A (en) | 1985-05-03 | 1986-11-05 | Hoover Plc | Spin speed control for laundry spin driers |
DE3605924A1 (de) | 1986-02-25 | 1987-08-27 | Licentia Gmbh | Waschmaschine mit einer motorisch angetriebenen wasch- und schleudertrommel |
DE3606819A1 (de) | 1986-03-03 | 1987-09-10 | Licentia Gmbh | Verfahren zur korrektur des unwuchtgroessengrenzwertes fuer eine programmgesteuerte waschmaschine |
FR2629484A1 (fr) | 1988-03-29 | 1989-10-06 | Esswein Sa | Perfectionnement aux moyens de detection de balourds dans les lave-linge |
DE3822924C1 (de) | 1988-07-07 | 1989-11-23 | Miele & Cie Gmbh & Co, 4830 Guetersloh, De | |
FR2645553A1 (fr) * | 1989-04-06 | 1990-10-12 | Licentia Gmbh | 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 |
ITPN910020A1 (it) | 1991-04-03 | 1992-10-04 | Zanussi Elettrodomestici | Dispositivo di misurazione e di equilibratura di carichi squilibrati nel cesto di macchine lavatrici |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0807706A3 (de) * | 1996-05-14 | 1998-05-27 | ANTONIO MERLONI S.p.A. | Verfahren zum Waschen von Wäsche in einer Waschmaschine, in solch einer Weise, dass sie nicht an der Trommel haftet |
EP0807706A2 (de) * | 1996-05-14 | 1997-11-19 | ANTONIO MERLONI S.p.A. | Verfahren zum Waschen von Wäsche in einer Waschmaschine, in solch einer Weise, dass sie nicht an der Trommel haftet |
GB2322141A (en) * | 1997-02-12 | 1998-08-19 | Toshiba Kk | Control of spin-drying phase of washing machine |
GB2322141B (en) * | 1997-02-12 | 1999-02-10 | Toshiba Kk | Front loading washing machine |
CN1093193C (zh) * | 1997-02-12 | 2002-10-23 | 株式会社东芝 | 滚筒式洗衣机的控制方法 |
US6510715B1 (en) | 1998-04-14 | 2003-01-28 | Tulga Simsek | Smart balancing system |
WO1999053130A2 (en) * | 1998-04-14 | 1999-10-21 | Simsek Tugla | Smart balancing system |
WO1999053130A3 (en) * | 1998-04-14 | 2000-03-09 | Tugla Simsek | Smart balancing system |
WO2000028128A1 (en) * | 1998-11-10 | 2000-05-18 | Electrolux Zanussi S.P.A. | Method for controlling the off-balance state of the load of a washing machine |
CN1318619C (zh) * | 2004-08-30 | 2007-05-30 | 金川集团有限公司 | 一种钴电解液的除铜方法 |
EP1911869A1 (de) * | 2006-10-12 | 2008-04-16 | Brandt Industries | Verfahren zum Schleudern am Ende eines Waschgangs einer Waschmaschine |
FR2907134A1 (fr) * | 2006-10-12 | 2008-04-18 | Brandt Ind Sas | Procede d'essorage final d'un cycle de lavage d'une machine a laver le linge |
CN101611186B (zh) * | 2006-12-21 | 2011-10-26 | 菲舍尔和佩克尔应用有限公司 | 改进的衣服器具 |
US8590083B2 (en) | 2006-12-21 | 2013-11-26 | Fisher & Paykel Appliances Limited | Laundry appliance |
EP1950336B1 (de) * | 2007-01-24 | 2019-01-02 | Samsung Electronics Co., Ltd. | Waschmaschine mit Ausgleichsreglern und Steuerverfahren dafür |
US8930031B2 (en) | 2008-12-17 | 2015-01-06 | Fisher & Paykel Appliances Limited | Laundry machine |
US9932699B2 (en) | 2009-02-11 | 2018-04-03 | Lg Electronics Inc. | Washing method and washing machine |
US9416478B2 (en) | 2009-03-31 | 2016-08-16 | Lg Electronics Inc. | Washing machine and washing method |
US10533275B2 (en) | 2009-07-27 | 2020-01-14 | Lg Electronics Inc. | Control method of a laundry machine |
US9695537B2 (en) | 2009-07-27 | 2017-07-04 | Lg Electronics Inc. | Control method of a laundry machine |
US9234307B2 (en) | 2009-07-27 | 2016-01-12 | Lg Electronics Inc. | Control method of a laundry machine |
US9822473B2 (en) | 2009-07-27 | 2017-11-21 | Lg Electronics Inc. | Control method of a laundry machine |
EP2464778A4 (de) * | 2009-08-11 | 2015-07-01 | Lg Electronics Inc | Steuerungsverfahren für eine waschmaschine |
EP3130694A1 (de) * | 2009-08-11 | 2017-02-15 | Lg Electronics Inc. | Steuerungsverfahren für eine waschmaschine |
EP2496750A4 (de) * | 2009-08-11 | 2015-07-01 | Lg Electronics Inc | Steuerungsverfahren für eine waschmaschine |
US9249534B2 (en) | 2009-10-13 | 2016-02-02 | Lg Electronics Inc. | Laundry treating apparatus and method |
CN102162031A (zh) * | 2011-04-11 | 2011-08-24 | 乔国昌 | 一种钴电解液的除铁方法 |
CN102162031B (zh) * | 2011-04-11 | 2012-09-05 | 山东交通职业学院 | 一种钴电解液的除铁方法 |
CN110714300A (zh) * | 2018-06-26 | 2020-01-21 | 青岛海尔洗衣机有限公司 | 用于衣物洗涤设备的平衡修正方法以及衣物洗涤设备 |
CN110714300B (zh) * | 2018-06-26 | 2022-08-05 | 青岛海尔洗衣机有限公司 | 用于衣物洗涤设备的平衡修正方法以及衣物洗涤设备 |
CN110438747A (zh) * | 2019-07-12 | 2019-11-12 | 合肥美的洗衣机有限公司 | 衣物的识别方法、装置和衣物处理装置 |
CN110438747B (zh) * | 2019-07-12 | 2021-07-20 | 合肥美的洗衣机有限公司 | 衣物的识别方法、装置和衣物处理装置 |
Also Published As
Publication number | Publication date |
---|---|
ES2132474T3 (es) | 1999-08-16 |
DE69508510D1 (de) | 1999-04-29 |
JP3681444B2 (ja) | 2005-08-10 |
EP0704567B1 (de) | 1999-03-24 |
ITPN940057A1 (it) | 1996-03-28 |
JPH08112487A (ja) | 1996-05-07 |
DE69508510T2 (de) | 1999-09-23 |
IT1267586B1 (it) | 1997-02-07 |
ITPN940057A0 (it) | 1994-09-28 |
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