EP0596302A1 - Washing machine with improved temperature regulation - Google Patents

Washing machine with improved temperature regulation Download PDF

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Publication number
EP0596302A1
EP0596302A1 EP93116725A EP93116725A EP0596302A1 EP 0596302 A1 EP0596302 A1 EP 0596302A1 EP 93116725 A EP93116725 A EP 93116725A EP 93116725 A EP93116725 A EP 93116725A EP 0596302 A1 EP0596302 A1 EP 0596302A1
Authority
EP
European Patent Office
Prior art keywords
cycle
control unit
program control
washing machine
machine according
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Withdrawn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
EP93116725A
Other languages
German (de)
English (en)
French (fr)
Inventor
Maurizio Mori
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.)
Electrolux Zanussi Elettrodomestici SpA
Original Assignee
Electrolux Zanussi Elettrodomestici SpA
Zanussi Elettrodomestici 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 Electrolux Zanussi Elettrodomestici SpA, Zanussi Elettrodomestici SpA filed Critical Electrolux Zanussi Elettrodomestici SpA
Publication of EP0596302A1 publication Critical patent/EP0596302A1/en
Withdrawn legal-status Critical Current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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/12—Washing temperature
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/14—Time settings
    • 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
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • 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
    • D06F2105/56—Remaining operation time; Remaining operational cycles

Definitions

  • the invention relates to an improved type, particularly for domestic use, of a laundering or dishwashing machine provided with particular electric circuitry which, in association with timer of a specific type, permits various temperatures and various durations to be selected for individual operating phases without necessitating respective thermostats.
  • thermogradual system for regulating the temperature of the laundering liquid bath, and operable to attain one or several temperatures by energizing the heater element over one or several defined periods of time, by a suitable construction and arrangement of the electric circuitry and the program control unit.
  • this solution does not permit to accurately attain the optimum temperatures for a determined cycle, inasmuch as the final temperature of the bath depends not only on the time the heater element is energized and the rated output of the heater element, but also on the initial temperature of the laundering liquid, which is unknown and may vary within rather wide limits.
  • thermogradual operation it would therefore be desirable, and is in fact the object of the present invention, to provide a washing machine in which the advantages of the thermogradual operation are enhanced by the possibility of selecting, amongst a number of predetermined durations, the desired duration of certain phases of the cycle, and amongst a number of predetermined temperatures, the optimum temperature for any particular type of laundry.
  • this object should be attained without the necessity of a nearly totally new construction of the machine, so as to keep the production cost low and to not aggravate the complexity of the circuitry of the laundry washer as a whole.
  • Appliances of this kind employ a single program control unit provided with two selector controls in the form of rotatable discs, a first disc acting directly on the control unit for the selection in the conventional manner of the desired laundering cycle, and a second disc acting on determined mechanic components contained in the program control unit and operable to vary in a continuous manner the rotary speed of the cam disc stack during certain phases of the operating cycle.
  • control unit uses the same cams as employed for controlling the various phases of the laundering cycle, with the difference that these same cams now control the opening and closing of associated contacts at a different and regul-atable rhythm, permitting them to be employed for controlling the phases of the drying cycle known to require a different timing.
  • the invention is thus characterized by the use of these types of program control units provided with two selector controls, with the difference that the second selector control, rather than being employed for selecting the functions of the drying cycle, is used in the laundering mode, specifically for the purpose of varying in a discrete manner, i.e. in determined steps, the rotary speed of the cam disc stack for certain phases of the cycle, and thus the duration of the respective phases.
  • the disc 1 of the main selector control 2 of the program control unit and the disc 3 of the auxiliary selector control 4 operable to vary the duration of the various phases of the selected program.
  • the selector controls each comprise a rotatable shaft acting on a respective gear 5, 6, the two gears being interconnected by a third gear 7 meshing with both of them.
  • the temperature of 90° may be assigned to a so-called “regular” cycle, to a "long” cycle, or to a “short” cycle.
  • the temperature T 2 may assume different values, for instance the value of 60° or 90°, depending on the position to which the auxiliary temperature selector control 4 has been brought, the temperture T in specie indicating the temperature of the liquid in the tub during the various phases.
  • the complete laundering cycle is composed of four distinct phases designated by A, B, C and D on the time scale, the phase A representing the interval during which a detergent is mixed with cold water, B representing the phase during which the laundering bath is heated, C representing the laundering phase at substantially constant temperature, and the phase D representing a succession of rinsing steps.
  • the individual phases are each composed of a number of time elements corresponding to the intervals during which the cam disc stack dwells at corresponding incremental positions.
  • phase A comprises only one time increment 1
  • phase B is composed of increments 2 to 7
  • phase C is composed of increments 8 to 10.
  • the rinsing phase D is not illustrated in detail, since it is not relevant in the context of the present invention.
  • the invention provides that the various time increments are of variable duration, the attached Table A showing the complete succession of time increments for each cycle of a selected length, for each temperature, and for each phase.
  • Table B shows the overall duration of the individual phases A, B and C as determined from Table A in accordance with the type (length) of the selected cycle.
  • the corresponding time intervals for a cycle at a selected temperature of 60° may be similarly derived from Table A.
  • Any laundry washing machine or dishwasher may of course be designed with circuitry outlays and arrangements different from what has been described without thereby going beyond the scope of protection of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP93116725A 1992-10-29 1993-10-15 Washing machine with improved temperature regulation Withdrawn EP0596302A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN920081A IT1259233B (it) 1992-10-29 1992-10-29 Macchina per il lavaggio con regolazione di temperatura perfezionata.
ITPN920081 1992-10-29

Publications (1)

Publication Number Publication Date
EP0596302A1 true EP0596302A1 (en) 1994-05-11

Family

ID=11394720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116725A Withdrawn EP0596302A1 (en) 1992-10-29 1993-10-15 Washing machine with improved temperature regulation

Country Status (2)

Country Link
EP (1) EP0596302A1 (it)
IT (1) IT1259233B (it)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722008A2 (en) * 1995-01-05 1996-07-17 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Improvement in the washing programmes of clothes washing or dishwashing machines
DE19651346A1 (de) * 1996-12-10 1998-06-25 Bosch Siemens Hausgeraete Geschirrspülmaschine mit einer Steuereinrichtung
DE19651347A1 (de) * 1996-12-10 1998-06-25 Bosch Siemens Hausgeraete Verfahren zum Betreiben einer Geschirrspülmaschine
FR2806103A1 (fr) * 2000-03-10 2001-09-14 Aeg Hausgeraete Gmbh Machine a laver a commander par microprocesseur
KR100424314B1 (ko) * 2002-01-09 2004-03-25 엘지전자 주식회사 가전기기 표시부 배열구조
DE102005062481A1 (de) * 2005-12-27 2007-07-05 BSH Bosch und Siemens Hausgeräte GmbH Reinigungsprogramm für eine Geschirrspülmaschine mit verkürzter Laufzeit bei konstanter Reinigungsleistung
WO2010057827A1 (en) * 2008-11-18 2010-05-27 Arcelik Anonim Sirketi A household appliance with controlled amount of energy consumption

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1277592A (fr) * 1960-01-15 1961-12-01 English Electric Co Ltd Machine à laver électrique
FR78005E (fr) * 1960-07-01 1962-05-26 Thomson Houston Comp Francaise Perfectionnements aux machines à laver
FR2283977A1 (fr) * 1974-09-06 1976-04-02 Bosch Siemens Hausgeraete Machine a laver a tambour et traitant le linge en fonction de sa nature et de son degre d'encrassement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1277592A (fr) * 1960-01-15 1961-12-01 English Electric Co Ltd Machine à laver électrique
FR78005E (fr) * 1960-07-01 1962-05-26 Thomson Houston Comp Francaise Perfectionnements aux machines à laver
FR2283977A1 (fr) * 1974-09-06 1976-04-02 Bosch Siemens Hausgeraete Machine a laver a tambour et traitant le linge en fonction de sa nature et de son degre d'encrassement

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722008A2 (en) * 1995-01-05 1996-07-17 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Improvement in the washing programmes of clothes washing or dishwashing machines
EP0722008A3 (en) * 1995-01-05 1997-03-26 Electrolux Zanussi Elettrodome Washing programs in laundry washing machines or in dishwashers
DE19651346C2 (de) * 1996-12-10 2003-01-30 Bsh Bosch Siemens Hausgeraete Geschirrspülmaschine mit einer Steuereinrichtung
DE19651347A1 (de) * 1996-12-10 1998-06-25 Bosch Siemens Hausgeraete Verfahren zum Betreiben einer Geschirrspülmaschine
DE19651347C2 (de) * 1996-12-10 2002-11-14 Bsh Bosch Siemens Hausgeraete Verfahren zum Betreiben einer Geschirrspülmaschine
DE19651346A1 (de) * 1996-12-10 1998-06-25 Bosch Siemens Hausgeraete Geschirrspülmaschine mit einer Steuereinrichtung
FR2806103A1 (fr) * 2000-03-10 2001-09-14 Aeg Hausgeraete Gmbh Machine a laver a commander par microprocesseur
KR100424314B1 (ko) * 2002-01-09 2004-03-25 엘지전자 주식회사 가전기기 표시부 배열구조
DE102005062481A1 (de) * 2005-12-27 2007-07-05 BSH Bosch und Siemens Hausgeräte GmbH Reinigungsprogramm für eine Geschirrspülmaschine mit verkürzter Laufzeit bei konstanter Reinigungsleistung
US9060663B2 (en) 2005-12-27 2015-06-23 Bsh Bosch Und Siemens Hausgeraete Gmbh Washing programme for a dishwasher having a shorter cycle with a constant cleaning efficiency
WO2010057827A1 (en) * 2008-11-18 2010-05-27 Arcelik Anonim Sirketi A household appliance with controlled amount of energy consumption
US20110283216A1 (en) * 2008-11-18 2011-11-17 Cagatay Buyuktopcu Household Appliance with Controlled Amount of Energy Consumption
CN102216514B (zh) * 2008-11-18 2013-06-19 阿塞里克股份有限公司 具有受控的能量消耗量的家用电器
KR101333192B1 (ko) * 2008-11-18 2013-11-26 아세릭 에이. 에스 제어된 에너지 소비량을 갖는 가전 제품
US9528214B2 (en) 2008-11-18 2016-12-27 Arcelik Anonim Sirketi Household appliance with controlled amount of energy consumption

Also Published As

Publication number Publication date
ITPN920081A0 (it) 1992-10-29
IT1259233B (it) 1996-03-11
ITPN920081A1 (it) 1994-04-29

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