EP2009165A1 - Betriebszyklus für die Entleerungspumpe einer Haushaltswaschmaschine - Google Patents

Betriebszyklus für die Entleerungspumpe einer Haushaltswaschmaschine Download PDF

Info

Publication number
EP2009165A1
EP2009165A1 EP07425397A EP07425397A EP2009165A1 EP 2009165 A1 EP2009165 A1 EP 2009165A1 EP 07425397 A EP07425397 A EP 07425397A EP 07425397 A EP07425397 A EP 07425397A EP 2009165 A1 EP2009165 A1 EP 2009165A1
Authority
EP
European Patent Office
Prior art keywords
drain pump
operating cycle
pump
check
cycle
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Withdrawn
Application number
EP07425397A
Other languages
English (en)
French (fr)
Inventor
Lucio Gastaldelli
Marco Molinari
Mauro Tosi
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.)
Bonferraro SpA
Original Assignee
Bonferraro SpA
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 Bonferraro SpA filed Critical Bonferraro SpA
Priority to EP07425397A priority Critical patent/EP2009165A1/de
Publication of EP2009165A1 publication Critical patent/EP2009165A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0031—Water discharge phases
    • 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
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge 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
    • 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
    • D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/09—Water level
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction
    • 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
    • D06F2105/08—Draining of washing liquids

Definitions

  • the present invention relates to household washing appliances, such as dishwashers and washing machines, and in particular to a household appliance in which the drain pump operates according to a particular cycle.
  • water drain pumps used in household washing appliances are conventionally operated with a cycle that provides the operation of the pump for a preset time calculated on the basis of the amount of water to be drained and of the pump flow rate.
  • pumps are not seldom subject to cavitation problems, i.e. they stop operating properly when inside the pump impeller there are air bubbles that trigger a phenomenon due to which the pump, though electrically operating, can no longer mechanically evacuate the water.
  • the obj ect of the present invention is to provide an operating cycle for the drain pump which overcomes said drawbacks.
  • This object is achieved by means of a cycle in which the pump operation is controlled not only on the basis of the calculated drain time but also on the basis of the level of the water to be drained actually detected, and possibly provides an intermittent activation to prevent the air that sets in the pump body and therefore between the impeller blades from causing the cavitation problem.
  • the main advantage of the cycle according to the present invention is that it offers the possibility of locating the pump at positions within the appliance that are apparently unsuitable for the correct operation of the pump, so as to achieve the maximum flexibility in the arrangement of the pipings and to reduce the manufacturing costs.
  • a further advantage of this cycle stems from the fact that its implementation does not require any additional component with respect to those already usually present in the appliance.
  • a machine sump MS connected through a pipe to the drain pump DP, from which a further pipe branches out to the drain.
  • the water level in sump MS is detected by a pressure switch PS, that is conventionally employed to check the amount of water introduced in the machine during the loading phase, which is connected to a control unit CU which in turn controls the drain pump DP.
  • the drain pump is activated by the control unit that detects the water level in the sump through the pressure switch, and it is operated for a preset period of time which in the absence of cavitation problems is sufficient to empty the sump down to the required minimum level.
  • a check is performed whether said level has been reached and in the affirmative the drain pump is stopped and the cycle ends.
  • the control unit temporarily interrupts the operation of the drain pump, indicatively for a duration between 1 and 15 seconds, to allow the liquid to oscillate within the pump and thus move the air bubble into a position where it can be evacuated.
  • the duration of the step of temporary stop of the drain pump may be increased and possibly divided into two or more steps, i.e. there may be provided two or more steps of stopping/restarting the pump prior to returning to cycle start in order to further facilitate the evacuation of the air bubble.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
EP07425397A 2007-06-28 2007-06-28 Betriebszyklus für die Entleerungspumpe einer Haushaltswaschmaschine Withdrawn EP2009165A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07425397A EP2009165A1 (de) 2007-06-28 2007-06-28 Betriebszyklus für die Entleerungspumpe einer Haushaltswaschmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425397A EP2009165A1 (de) 2007-06-28 2007-06-28 Betriebszyklus für die Entleerungspumpe einer Haushaltswaschmaschine

Publications (1)

Publication Number Publication Date
EP2009165A1 true EP2009165A1 (de) 2008-12-31

Family

ID=38776224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07425397A Withdrawn EP2009165A1 (de) 2007-06-28 2007-06-28 Betriebszyklus für die Entleerungspumpe einer Haushaltswaschmaschine

Country Status (1)

Country Link
EP (1) EP2009165A1 (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102260984A (zh) * 2011-07-25 2011-11-30 海尔集团公司 洗衣机控制方法及其洗衣机
US20120042907A1 (en) * 2010-08-20 2012-02-23 Bsh Bosch Und Siemens Hausgerate Gmbh Dishwasher with an improved pump-off sequence
CN102535095A (zh) * 2012-01-19 2012-07-04 松下家电研究开发（杭州）有限公司 一种洗衣机排水过程的控制方法
EP2471993A1 (de) * 2009-08-24 2012-07-04 Kabushiki Kaisha Toshiba Trommelwaschmaschine
US20130291896A1 (en) * 2012-05-07 2013-11-07 General Electric Company Dishwasher appliance with features for determining a drain time interval
EP2596734A3 (de) * 2011-11-28 2016-05-11 BSH Hausgeräte GmbH Haushaltsgerät und Steuerungsverfahren für ein Haushaltsgerät
CN105887455A (zh) * 2016-05-19 2016-08-24 无锡小天鹅股份有限公司 洗干一体机的排水控制方法和洗干一体机
CN105926236A (zh) * 2016-05-19 2016-09-07 无锡小天鹅股份有限公司 洗衣机的脱水控制方法和洗衣机
DE102016201446B3 (de) * 2016-02-01 2017-02-09 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Pumpenansteuerung
EP3254597A1 (de) * 2016-06-10 2017-12-13 LG Electronics Inc. Verfahren zur steuerung der wasserversorgung eines geschirrspülers
EP2420175A3 (de) * 2010-08-20 2017-12-27 BSH Hausgeräte GmbH Geschirrspülmaschine mit einem manuell anpassbaren Spülprogramm
WO2021077535A1 (zh) * 2019-10-21 2021-04-29 无锡小天鹅电器有限公司 衣物处置装置的脱水控制方法、装置及存储介质
WO2021148132A1 (en) * 2020-01-24 2021-07-29 Electrolux Appliances Aktiebolag Washing appliance, method of detecting operational error, and control arrangement
CN113235281A (zh) * 2021-05-27 2021-08-10 无锡小天鹅电器有限公司 衣物处理装置及其排水控制方法及装置、存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168388A (en) * 1984-12-15 1986-06-18 Licentia Gmbh Program control apparatus for a washing machine
DE10017243A1 (de) * 2000-04-06 2001-10-11 Bsh Bosch Siemens Hausgeraete Verfahren zum Betreiben einer Geschirrspülmaschine
DE20214721U1 (de) * 2002-09-24 2002-12-05 Henkler Sylvia Schleuder-Laugenpumpensteuerung
EP1283292A2 (de) * 2001-08-10 2003-02-12 Electrolux Home Products Corporation N.V. Verfahren zum Steuern der Trommeldrehzahl einer Wäschewaschmaschine während des Schleudergangs
DE10233278A1 (de) * 2002-07-23 2004-02-19 Whirlpool Corp., Benton Harbor Wasch- oder Spülmaschine
EP1862582A2 (de) * 2006-05-30 2007-12-05 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben einer Waschmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168388A (en) * 1984-12-15 1986-06-18 Licentia Gmbh Program control apparatus for a washing machine
DE10017243A1 (de) * 2000-04-06 2001-10-11 Bsh Bosch Siemens Hausgeraete Verfahren zum Betreiben einer Geschirrspülmaschine
EP1283292A2 (de) * 2001-08-10 2003-02-12 Electrolux Home Products Corporation N.V. Verfahren zum Steuern der Trommeldrehzahl einer Wäschewaschmaschine während des Schleudergangs
DE10233278A1 (de) * 2002-07-23 2004-02-19 Whirlpool Corp., Benton Harbor Wasch- oder Spülmaschine
DE20214721U1 (de) * 2002-09-24 2002-12-05 Henkler Sylvia Schleuder-Laugenpumpensteuerung
EP1862582A2 (de) * 2006-05-30 2007-12-05 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben einer Waschmaschine

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2471993A1 (de) * 2009-08-24 2012-07-04 Kabushiki Kaisha Toshiba Trommelwaschmaschine
EP2471993A4 (de) * 2009-08-24 2013-03-13 Toshiba Kk Trommelwaschmaschine
US9155442B2 (en) * 2010-08-20 2015-10-13 Bsh Hausgeraete Gmbh Dishwasher with an improved pump-off sequence
US20120042907A1 (en) * 2010-08-20 2012-02-23 Bsh Bosch Und Siemens Hausgerate Gmbh Dishwasher with an improved pump-off sequence
EP2420175A3 (de) * 2010-08-20 2017-12-27 BSH Hausgeräte GmbH Geschirrspülmaschine mit einem manuell anpassbaren Spülprogramm
EP2420175B1 (de) 2010-08-20 2020-10-07 BSH Hausgeräte GmbH Geschirrspülmaschine mit einem manuell anpassbaren Spülprogramm
EP2420174A3 (de) * 2010-08-20 2017-11-15 BSH Hausgeräte GmbH Geschirrspülmaschine mit einer verbesserten Abpumpsequenz
CN102260984B (zh) * 2011-07-25 2016-01-13 佛山市顺德海尔电器有限公司 洗衣机控制方法及其洗衣机
CN102260984A (zh) * 2011-07-25 2011-11-30 海尔集团公司 洗衣机控制方法及其洗衣机
EP2596734A3 (de) * 2011-11-28 2016-05-11 BSH Hausgeräte GmbH Haushaltsgerät und Steuerungsverfahren für ein Haushaltsgerät
US9554687B2 (en) 2011-11-28 2017-01-31 BSH Hausgeräte GmbH Household appliance and a controlling method for such a household appliance
CN102535095A (zh) * 2012-01-19 2012-07-04 松下家电研究开发（杭州）有限公司 一种洗衣机排水过程的控制方法
US20130291896A1 (en) * 2012-05-07 2013-11-07 General Electric Company Dishwasher appliance with features for determining a drain time interval
DE102016201446B3 (de) * 2016-02-01 2017-02-09 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Pumpenansteuerung
CN108603323A (zh) * 2016-02-01 2018-09-28 Bsh家用电器有限公司 具有泵驱控装置的洗涤物护理器具
CN105926236A (zh) * 2016-05-19 2016-09-07 无锡小天鹅股份有限公司 洗衣机的脱水控制方法和洗衣机
CN105887455A (zh) * 2016-05-19 2016-08-24 无锡小天鹅股份有限公司 洗干一体机的排水控制方法和洗干一体机
KR20170139804A (ko) * 2016-06-10 2017-12-20 엘지전자 주식회사 식기 세척기의 제어방법
US20170354306A1 (en) * 2016-06-10 2017-12-14 Lg Electronics Inc. Method for controlling water supply of dishwasher
EP3254597A1 (de) * 2016-06-10 2017-12-13 LG Electronics Inc. Verfahren zur steuerung der wasserversorgung eines geschirrspülers
WO2021077535A1 (zh) * 2019-10-21 2021-04-29 无锡小天鹅电器有限公司 衣物处置装置的脱水控制方法、装置及存储介质
WO2021148132A1 (en) * 2020-01-24 2021-07-29 Electrolux Appliances Aktiebolag Washing appliance, method of detecting operational error, and control arrangement
CN113235281A (zh) * 2021-05-27 2021-08-10 无锡小天鹅电器有限公司 衣物处理装置及其排水控制方法及装置、存储介质

Similar Documents

Publication Publication Date Title
EP2009165A1 (de) Betriebszyklus für die Entleerungspumpe einer Haushaltswaschmaschine
US10178936B2 (en) System and associated method for preventing overfilling in a dishwasher
US9192280B2 (en) Method and system for detecting and removing a clogging condition of a filter in a dishwasher
CN106455901B (zh) 操作洗碗机的方法以及洗碗机
US8702874B2 (en) Method and system for removing a clog from a dishwasher
EP2283760A1 (de) Waschvorrichtung wie ein Geschirrspüler oder eine Waschmaschine und Betriebsverfahren für solch eine Waschvorrichtung
KR20080096551A (ko) 공기 조화기
US8691021B2 (en) Water-bearing household appliance
CN105926236A (zh) 洗衣机的脱水控制方法和洗衣机
EP2993262B1 (de) Verfahren zum Waschen von Wäsche in einer Wäschewaschmaschine
EP2941165B1 (de) Verfahren zur steuerung der wasserbefüllung eines wasserführenden elektrischen haushaltsgeräts
EP2772175A1 (de) Geschirrspülmaschine und Steuerungsverfahren dafür
EP2151518A3 (de) Trommelwaschmaschine
US20170055800A1 (en) Household appliance and a controlling method for such a household appliance
WO2015078513A1 (en) Dishwasher and method for collecting washing liquid in a dishwasher
US20120009074A1 (en) Water-conducting household appliance, particularly a dishwasher
US20230363578A1 (en) Inline cavitation reduction for a beverage appliance
CN108368664B (zh) 用于运行家用器具的方法和家用器具
KR102367065B1 (ko) 배수장치 및 이를 갖춘 식기 세척기
JP6020245B2 (ja) 食器洗い機
US20160058263A1 (en) Dishwasher appliances and methods for operating appliances
WO2018103954A1 (en) A dishwasher comprising a tank
JP4636621B2 (ja) 食器洗い機
EP3495547A1 (de) Pumpe für eine waschmaschine, waschmaschine und verfahren
JP2016096948A (ja) 食器洗浄機

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090701