EP0028067A1 - Machine à laver avec indicateur d'engorgement de drainage - Google Patents
Machine à laver avec indicateur d'engorgement de drainage Download PDFInfo
- Publication number
- EP0028067A1 EP0028067A1 EP80303186A EP80303186A EP0028067A1 EP 0028067 A1 EP0028067 A1 EP 0028067A1 EP 80303186 A EP80303186 A EP 80303186A EP 80303186 A EP80303186 A EP 80303186A EP 0028067 A1 EP0028067 A1 EP 0028067A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- washing machine
- blocked
- outlet
- machine according
- drain
- 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.)
- Withdrawn
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
- 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
- D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps
-
- 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
- D06F39/081—Safety arrangements for preventing water damage
- D06F39/082—Safety arrangements for preventing water damage detecting faulty draining operations, e.g. filter blockage, faulty pump
-
- 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
- D06F39/087—Water level measuring or regulating devices
-
- 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
- D06F39/10—Filtering 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid 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
- D06F2105/58—Indications or alarms to the control system or to the user
Definitions
- the present invention relates to washing machines.
- the present invention we avoid the above problem of blockage of the chamber outlet by monitoring the water level during a draining operation and use this to determine whether the filter is in need of cleaning. If the water does not drain to a particular level in a given time, it can be taken that the filter is blocked. Of course, slow drainage may also be due to a faulty pump or a blockage elsewhere in the machine but checking the filter will at least eliminate that as the source of the difficulty.
- the present invention is characterised by a device, operative during a draining step, to monitor the water level sensor to provide a signal indicating that the outlet is blocked.
- This signal may be used, for example, to operate an indicator such as a lamp mounted on the fascia of the machine to alert the user to the need to check the filter.
- the operation of the lamp or whatever other indicator is used, may be immediate or it may provide the "check filter" signal at the end of the complete operating cycle of the machine. This latter will be satisfactory where progressive blockages are expected.
- a timer is activated at the same time as the drain pump during the period in which proper drainage or otherwise is to be detected and the level sensor is subsequently monitored. If the level sensor does not indicate that the level has dropped below the operating point of the sensor before the timer times out, this is taken as indicating improper drainage and the "check filter" indicator is activated, either immediately or at the end of the machine cycle.
- an automatic washing machine 1 comprises a casing 2 defining a wash chamber in which is mounted a horizontal cylindrical wash tub 3 connected to an appropriate drive (not shown) for the various operations of the machine such as wash, spin, etc. Clothes or other articles to be washed are placed in the wash tub via an access door 4.
- an electronic water valve 5 Associated with the washing chain within the casing 2 are an electronic water valve 5 and a drain pump 6 to fill and drain the chamber, respectively.
- a filter 7 which prevents material which might jam the impellor of the drain pump 6 from reaching it. Water from the drain pump is pumped via a pipe 8 to an external drain 9.
- the operation of the machine is controlled by a controller 10 which may comprise a microprocessor or a more conventional electromagnetic arrangement and this controller controls, inter alia, the drive motor of the wash tub, the water valve 5 and the drain pump 6.
- the controller is suitably arranged so that the user can select the appropriate one of a number of programmes according to the articles to be washed.
- the drain pump 6 is operated to drain the water from the wash chamber and then the water valve 5 opened to refill the wash chamber for a subsequent wash for rinse.
- the drain pump is operated to drain the wash chamber and the water valve 5 subsequently held closed during the spin operation or operations.
- a pressure switch arrangement 11 Water levels within the wash chamber are monitored by the controller by means of a pressure switch arrangement 11. Essentially, this comprises a closed housing in which is located a pressure-responsive diaphragm which controls closure of three sets of contacts 12, 13 and 14. One side of the diaphragm is communicated via a tube 16 with an air bell 17 which is open to the interior of the wash chamber. As the water level changes, the pressure in the wash chamber increases or decreases as appropriate, so the pressure difference acting on the diaphragm changes causes the contacts 12, 13 and 14 to open or close.
- the contact 12 is arranged to open when the level of water in the wash chamber has increased to a given minimum level while contacts 13 and 1L 1 close, respectively, when the wash chamber is half full and full. There is some hysteresis between the switching level for increasing and decreasing water levels so that, for example, the contacts 13 and 14 2 open when the water level has decreased to 3 and 3 full respectively.
- the switch 12 is used by the controller 10 to indicate when a desired minimum level of water is in the wash chamber and, in view of the hysteresis involved in its switching, is also taken to indicate during draining that the wash chamber is empty.
- the switches 13 and 14 are used by the controller 10 to indicate that the wash chamber is half and completely full respectively during filling to control the operation of the water valve 5.
- the machine operates in a conventional manner except as will be described below.
- a "pump-out" signal is applied to controller 10 to energise the drain pump G. This signal also starts a timer 18 within the controller 10. During this period controller 10 monitors the switch 12 and if the latter does not close during the timing period of the timer 18, this indicates that the filter is blocked and a register 19 is set. At the end of the programme, the controller checks the content of the register 19 and, if set, illuminates a warning light 20 which indicates that the filter needs to be removed by the user and cleaned.
- the controller may alternatively illuminate the lamp immediately or abort the remainder of the programme and continue pumping out past the low level switch operating point, for example continuing for a predetermined time.
- the controller 10 could operate to start the timer 18 during each drain period.
- the "pump-out" signal may be generated by the controller itself, in software in the case of a microprocessor or by an associated, separate programmer.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Centrifugal Separators (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7931600 | 1979-09-12 | ||
GB7931600 | 1979-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0028067A1 true EP0028067A1 (fr) | 1981-05-06 |
Family
ID=10507772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80303186A Withdrawn EP0028067A1 (fr) | 1979-09-12 | 1980-09-10 | Machine à laver avec indicateur d'engorgement de drainage |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0028067A1 (fr) |
JP (1) | JPS5695098A (fr) |
AU (1) | AU6218080A (fr) |
DK (1) | DK386580A (fr) |
ES (1) | ES8105807A1 (fr) |
FI (1) | FI802852A (fr) |
NO (1) | NO802707L (fr) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0173823A2 (fr) * | 1984-08-22 | 1986-03-12 | Bosch-Siemens HausgerÀ¤te GmbH | Dispositif de montage pour faire le plein et le remplissage commandés des réservoirs de liquides |
EP0245870A1 (fr) * | 1986-05-16 | 1987-11-19 | INDUSTRIE ZANUSSI S.p.A. | Dispositif de contrôle de filtre pour un appareil électroménager |
EP0247995A1 (fr) * | 1986-05-27 | 1987-12-02 | AUSTRIA Antriebstechnik G. Bauknecht Aktiengesellschaft | Procédé et dispositif pour surveiller le fonctionnement d'une machine à laver |
EP0580563A1 (fr) * | 1992-07-22 | 1994-01-26 | SMEG S.p.A. | Dispositif de sécurité pour machines à laver la vaisselles, notamment pour détecter une grande consommation d'eau |
EP0807707A2 (fr) * | 1996-05-14 | 1997-11-19 | ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. | Machine à laver le linge avec dispositif de surveillance du filtre |
WO1999029953A1 (fr) * | 1997-12-08 | 1999-06-17 | Samsung Electronics Co., Ltd. | Lave-linge dote d'un dispositif destine a introduire de l'eau en jets dans un tambour rotatif |
EP1096052A2 (fr) * | 1999-10-28 | 2001-05-02 | Electrolux Zanussi S.p.A. | Procédé pour surveiller le filtre à peluche dans une machine à laver |
SG85072A1 (en) * | 1992-08-03 | 2001-12-19 | Sharp Kk | Single-tub washing machine |
EP1862582A2 (fr) * | 2006-05-30 | 2007-12-05 | BSH Bosch und Siemens Hausgeräte GmbH | Procédé pour faire fonctionner une machine à laver |
US7984628B2 (en) * | 2003-04-22 | 2011-07-26 | Sharp Kabushiki Kaisha | Washing machine capable of detecting leakage at water feed unit |
EP2426246A1 (fr) * | 2010-09-01 | 2012-03-07 | Miele & Cie. KG | Procédé de fonctionnement d'un lave-linge, dispositif d'écoulement et lave-linge |
US20130079934A1 (en) * | 2011-09-27 | 2013-03-28 | Ip Holdings Llc | Computer implemented method for controlling ebb flow watering systems |
DE102012111505A1 (de) | 2012-11-28 | 2014-05-28 | Miele & Cie. Kg | Verfahren zum Betreiben einer Wasch- oder Geschirrspülmaschine und Wasch- oder Geschirrspülmaschine zur Durchführung des Verfahrens |
DE102008045086B4 (de) | 2007-08-31 | 2019-03-07 | Lg Electronics Inc. | Geschirrspülmaschine |
CN109629187A (zh) * | 2018-12-11 | 2019-04-16 | 青岛海尔洗衣机有限公司 | 洗衣机排水控制方法 |
CN110195312A (zh) * | 2018-02-24 | 2019-09-03 | 无锡小天鹅电器有限公司 | 洗衣机、洗涤控制方法、洗涤控制装置和存储介质 |
WO2020151556A1 (fr) * | 2019-01-25 | 2020-07-30 | 青岛海尔洗衣机有限公司 | Procédé de commande d'évacuation d'eau pour machine à laver, et machine à laver |
GB2582296A (en) * | 2019-03-13 | 2020-09-23 | Centrica Plc | System for detecting drainage flow obstructions in washing appliances |
CN113180570A (zh) * | 2021-03-28 | 2021-07-30 | 杭州舟关信息科技有限公司 | 一种洗碗机排水孔自动清洁装置 |
CN114146987A (zh) * | 2021-11-30 | 2022-03-08 | 广州发展电力科技有限公司 | 一种风力发电机转子接地处理方法、系统及计算机设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6811374U (de) * | 1968-12-12 | 1969-08-11 | Siemens Elektrogeraete Gmbh | Wasch- oder geschirrspuelmaschine mit einer vorrichtung zum abpumpen der wasch- oder spuelfluessigkeit |
US3545481A (en) * | 1967-11-03 | 1970-12-08 | Angelo R Fratalia | Liquid level control device |
DE2631344A1 (de) * | 1976-07-13 | 1978-01-19 | Philips Patentverwaltung | Vorrichtung zur anzeige der verschmutzung der pumpe einer waschmaschine oder waescheschleuder |
DE2818286A1 (de) * | 1977-08-18 | 1979-10-31 | Bauknecht Gmbh G | Verfahren und anordnung zur funktionsablaufsueberwachung |
-
1980
- 1980-09-10 EP EP80303186A patent/EP0028067A1/fr not_active Withdrawn
- 1980-09-10 AU AU62180/80A patent/AU6218080A/en not_active Abandoned
- 1980-09-11 NO NO802707A patent/NO802707L/no unknown
- 1980-09-11 JP JP12661480A patent/JPS5695098A/ja active Pending
- 1980-09-11 DK DK386580A patent/DK386580A/da unknown
- 1980-09-11 ES ES494959A patent/ES8105807A1/es not_active Expired
- 1980-09-11 FI FI802852A patent/FI802852A/fi not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3545481A (en) * | 1967-11-03 | 1970-12-08 | Angelo R Fratalia | Liquid level control device |
DE6811374U (de) * | 1968-12-12 | 1969-08-11 | Siemens Elektrogeraete Gmbh | Wasch- oder geschirrspuelmaschine mit einer vorrichtung zum abpumpen der wasch- oder spuelfluessigkeit |
DE2631344A1 (de) * | 1976-07-13 | 1978-01-19 | Philips Patentverwaltung | Vorrichtung zur anzeige der verschmutzung der pumpe einer waschmaschine oder waescheschleuder |
DE2818286A1 (de) * | 1977-08-18 | 1979-10-31 | Bauknecht Gmbh G | Verfahren und anordnung zur funktionsablaufsueberwachung |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0173823A2 (fr) * | 1984-08-22 | 1986-03-12 | Bosch-Siemens HausgerÀ¤te GmbH | Dispositif de montage pour faire le plein et le remplissage commandés des réservoirs de liquides |
EP0173823A3 (en) * | 1984-08-22 | 1986-09-17 | Bosch-Siemens Hausgerate Gmbh | Circuit arrangement for controlled filling up and refilling of containers with liquids |
US4729495A (en) * | 1984-08-22 | 1988-03-08 | The Coco-Cola Company | Circuit configuration for the controlled filling and refilling of containers with liquids |
EP0245870A1 (fr) * | 1986-05-16 | 1987-11-19 | INDUSTRIE ZANUSSI S.p.A. | Dispositif de contrôle de filtre pour un appareil électroménager |
EP0247995A1 (fr) * | 1986-05-27 | 1987-12-02 | AUSTRIA Antriebstechnik G. Bauknecht Aktiengesellschaft | Procédé et dispositif pour surveiller le fonctionnement d'une machine à laver |
EP0580563A1 (fr) * | 1992-07-22 | 1994-01-26 | SMEG S.p.A. | Dispositif de sécurité pour machines à laver la vaisselles, notamment pour détecter une grande consommation d'eau |
SG85072A1 (en) * | 1992-08-03 | 2001-12-19 | Sharp Kk | Single-tub washing machine |
EP0807707A2 (fr) * | 1996-05-14 | 1997-11-19 | ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. | Machine à laver le linge avec dispositif de surveillance du filtre |
EP0807707A3 (fr) * | 1996-05-14 | 1998-09-16 | Electrolux Zanussi S.p.A. | Machine à laver le linge avec dispositif de surveillance du filtre |
WO1999029953A1 (fr) * | 1997-12-08 | 1999-06-17 | Samsung Electronics Co., Ltd. | Lave-linge dote d'un dispositif destine a introduire de l'eau en jets dans un tambour rotatif |
EP1096052A2 (fr) * | 1999-10-28 | 2001-05-02 | Electrolux Zanussi S.p.A. | Procédé pour surveiller le filtre à peluche dans une machine à laver |
EP1096052A3 (fr) * | 1999-10-28 | 2001-07-04 | Electrolux Zanussi S.p.A. | Procédé pour surveiller le filtre à peluche dans une machine à laver |
US7984628B2 (en) * | 2003-04-22 | 2011-07-26 | Sharp Kabushiki Kaisha | Washing machine capable of detecting leakage at water feed unit |
EP1862582A2 (fr) * | 2006-05-30 | 2007-12-05 | BSH Bosch und Siemens Hausgeräte GmbH | Procédé pour faire fonctionner une machine à laver |
EP1862582A3 (fr) * | 2006-05-30 | 2008-06-11 | BSH Bosch und Siemens Hausgeräte GmbH | Procédé pour faire fonctionner une machine à laver |
DE102008045086B4 (de) | 2007-08-31 | 2019-03-07 | Lg Electronics Inc. | Geschirrspülmaschine |
EP2426246A1 (fr) * | 2010-09-01 | 2012-03-07 | Miele & Cie. KG | Procédé de fonctionnement d'un lave-linge, dispositif d'écoulement et lave-linge |
US20130079934A1 (en) * | 2011-09-27 | 2013-03-28 | Ip Holdings Llc | Computer implemented method for controlling ebb flow watering systems |
US8725301B2 (en) * | 2011-09-27 | 2014-05-13 | Ip Holdings, Llc | Computer implemented method for controlling ebb flow watering systems |
US9901044B2 (en) | 2011-09-27 | 2018-02-27 | Ip Holdings, Llc | Ebb and flow watering system |
DE102012111505A1 (de) | 2012-11-28 | 2014-05-28 | Miele & Cie. Kg | Verfahren zum Betreiben einer Wasch- oder Geschirrspülmaschine und Wasch- oder Geschirrspülmaschine zur Durchführung des Verfahrens |
CN110195312A (zh) * | 2018-02-24 | 2019-09-03 | 无锡小天鹅电器有限公司 | 洗衣机、洗涤控制方法、洗涤控制装置和存储介质 |
CN109629187A (zh) * | 2018-12-11 | 2019-04-16 | 青岛海尔洗衣机有限公司 | 洗衣机排水控制方法 |
WO2020151556A1 (fr) * | 2019-01-25 | 2020-07-30 | 青岛海尔洗衣机有限公司 | Procédé de commande d'évacuation d'eau pour machine à laver, et machine à laver |
GB2582296A (en) * | 2019-03-13 | 2020-09-23 | Centrica Plc | System for detecting drainage flow obstructions in washing appliances |
GB2582296B (en) * | 2019-03-13 | 2021-10-13 | Centrica Plc | System for detecting drainage flow obstructions in washing appliances |
US11634853B2 (en) | 2019-03-13 | 2023-04-25 | Centrica Plc | System for detecting drainage flow obstructions in washing appliances |
CN113180570A (zh) * | 2021-03-28 | 2021-07-30 | 杭州舟关信息科技有限公司 | 一种洗碗机排水孔自动清洁装置 |
CN114146987A (zh) * | 2021-11-30 | 2022-03-08 | 广州发展电力科技有限公司 | 一种风力发电机转子接地处理方法、系统及计算机设备 |
CN114146987B (zh) * | 2021-11-30 | 2022-11-29 | 广州发展电力科技有限公司 | 一种风力发电机转子接地处理方法、系统及计算机设备 |
Also Published As
Publication number | Publication date |
---|---|
ES494959A0 (es) | 1981-06-01 |
JPS5695098A (en) | 1981-08-01 |
AU6218080A (en) | 1981-03-26 |
ES8105807A1 (es) | 1981-06-01 |
DK386580A (da) | 1981-03-13 |
FI802852A (fi) | 1981-03-13 |
NO802707L (no) | 1981-03-13 |
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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 |
Designated state(s): AT BE CH DE FR IT LU NL SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: KENWOOD MANUFACTURING COMPANY LIMITED |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
17P | Request for examination filed |
Effective date: 19811110 |
|
18W | Application withdrawn |
Withdrawal date: 19820424 |
|
R17P | Request for examination filed (corrected) |
Effective date: 19811110 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: TOTTERDELL, ANTHONY CHARLES |