EP0352499A2 - Heizungsvorrichtung für eine Wasch- und/oder Trocknungsmachine für Wäsche - Google Patents

Heizungsvorrichtung für eine Wasch- und/oder Trocknungsmachine für Wäsche Download PDF

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Publication number
EP0352499A2
EP0352499A2 EP89111969A EP89111969A EP0352499A2 EP 0352499 A2 EP0352499 A2 EP 0352499A2 EP 89111969 A EP89111969 A EP 89111969A EP 89111969 A EP89111969 A EP 89111969A EP 0352499 A2 EP0352499 A2 EP 0352499A2
Authority
EP
European Patent Office
Prior art keywords
plate
washing
laundry
heating device
machine
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.)
Ceased
Application number
EP89111969A
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English (en)
French (fr)
Other versions
EP0352499A3 (de
Inventor
Piero Durazzani
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.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi 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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Publication of EP0352499A2 publication Critical patent/EP0352499A2/de
Publication of EP0352499A3 publication Critical patent/EP0352499A3/de
Ceased 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
    • H05B3/262—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an insulated metal plate

Definitions

  • the present invention relates to a heating device of a simple type to be used in washing and/or drying machines for laundry to provide for effi­cient heating of the washing liquid or the drying air for the laundry in the machine.
  • conventional washing and/or drying machines for laundry are provided with one or more elements for heating the washing solution or the drying air for the laundry, which are generally realized in the form of electrical resistors of the metal-clad type.
  • Such electrical resistors are in particular provided with one or more tubular branches of compact dimensions which are fixed to a flange and project therefrom at a short length to allow for connection of the cor­responding electric supply lines.
  • the resistors thus constituted are furthermore mounted in the ma­chine in question through corresponding openings and through the inter­mediary of sealing gaskets.
  • the object of the present invention is therefore to overcome the above-described disadvantages and limits by a heating device for washing and/or drying machines for laundry that is designed so as to provide for efficient and quick heating of the washing liquid or drying air of the machine, and also has elevated heating powers and compact dimensions.
  • a heating device for washing and/or drying machines for laundry, charac­ terized in that it comprises at least one plate made of electrically insu­lating material, preferably of a curved parallelepiped shape, and heating means consisting of electrically conductive material applied to at least one surface of the plate according to a predetermined pattern, said plate being applicable in removable fashion within the vessel of the machine and being designed so to allow for connection to the power supply net­work of the terminals of the heating means.
  • the present heating device com­prises substantially a plate 4 of parallelepiped shape and curved with a bending radius so as to fit inside the vessel (not shown) of a washing machine or drying machine of the conventional type.
  • the plate is further­more preferably realized in steel or another suitable metal material, ade­quately enameled so as to be electrically insulating, and can also be real­ized in electrically insulating material of a different type such as ceram­ic, glass-ceramic or the like.
  • the heating device in question also comprising strictlyes heating means 5 consisting of electrically conductive material applied to at least one outer surface of plate 4 so as to form a continuous elec­trical resistor adapted to effect the heating of the washing liquid or dry­ing air, respectively, in the case of a washing machine or drying machine or combined machine for washing and drying laundry.
  • the electrical resistor is in particular obtained using preferably a conductive mass consisting of electrically conductive metal powders, such as powdered boron, cuprous oxide, cupric oxide, cobalt or nickel oxide, and of glass frit mixed together with variable percentages of the single components in accordance with the desired resistivity, and subsequently subjected to heat treatments in the conventional way.
  • electrically conductive metal powders such as powdered boron, cuprous oxide, cupric oxide, cobalt or nickel oxide, and of glass frit mixed together with variable percentages of the single components in accordance with the desired resistivity, and subsequently subjected to heat treatments in the conventional way.
  • This conductive mass is applied to the surface of plate 4 preferably by the silk screen process or in any other way known per se, thereby realizing one or more conductive tracks with a predetermined pattern.
  • the resistive track is realized in a wavy shape and extends practically over the entire surface of plate 4, and terminals 6 and 7 of the track are situated in correspondence with parallelepiped pro­ jections 8 and 9 extending from lateral edge 10 of the plate, the termi­nals furthermore being equipped with corresponding plug clamps 11 and 12 or similar confections to allow for connection of the terminals with elec­tric supply lines 13 and 14 of the machine.
  • Electrical resistor 5 may also be realized in a different way, for ex­ample it may consist of conductive metal material applied to the surface of plate 4 by different manufacturing technology, for example by the "thick film” technique, without thereby going beyond the scope of the invention.
  • Fig. 2 shows the present heating device used within washing vessel 15 of a washing machine to heat the washing liquid for the laundry which is introduced into the vessel
  • plate 4 designed as described above is mounted in correspondence with bottom wall 16 of the vessel, and expediently spaced therefrom.
  • the mounting of plate 4 is in particular performed by inserting projections 8 and 9 of the plate through corresponding openings 17, in the vessel, through the intermediary of gaskets 19 for hermetic sealing, and by suit­able fixing means known per se and adapted to lock the plate in position in such a way that the projections extend partially outside the vessel to allow for connection of electric supply lines 13 and 14 of the machine with corresponding plug clamps 11 and 12 of the projections and thus with electrical resistor 5.
  • Fig. 3 shows the present heating device used inside vessel 15 of a combined washing and drying machine for laundry to heat the drying air for the laundry which is produced by a fan 21 connected to the upper part of the vessel.
  • plate 4 is mounted against the upper wall of vessel 15 expediently spaced therefrom and from drum 22 of the ma­chine, and this mounting is performed in the same ways as described above.
  • plate 4 and resistor 5 can also be real­ized in forms other than those described without thereby going beyond the scope of the invention.
  • the heating device designed in this way thus makes it possible to obtain elevated heat radi­ating powers even with relatively low electrical powers, and with compact dimensions of the plate, thereby permitting a homogeneous distribution of the radiant heat in the washing liquid or the drying air to be heated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP89111969A 1988-07-25 1989-06-30 Heizungsvorrichtung für eine Wasch- und/oder Trocknungsmachine für Wäsche Ceased EP0352499A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8845750A IT1225119B (it) 1988-07-25 1988-07-25 Dispositivo riscaldante per macchine lavatrici e/o asciugatricidi biancheria
IT4575088 1988-07-25

Publications (2)

Publication Number Publication Date
EP0352499A2 true EP0352499A2 (de) 1990-01-31
EP0352499A3 EP0352499A3 (de) 1990-07-18

Family

ID=11258048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111969A Ceased EP0352499A3 (de) 1988-07-25 1989-06-30 Heizungsvorrichtung für eine Wasch- und/oder Trocknungsmachine für Wäsche

Country Status (2)

Country Link
EP (1) EP0352499A3 (de)
IT (1) IT1225119B (de)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994018807A1 (en) * 1993-02-15 1994-08-18 Strix Limited Immersion heaters
EP0890669A2 (de) * 1997-07-11 1999-01-13 BSH Bosch und Siemens Hausgeräte GmbH Elektriches Wasch- und/oder Trockengerät mit elektrischem Heizelement
DE19749958A1 (de) * 1997-11-03 1999-05-06 Miele & Cie Waschmaschine mit einem Rohrheizkörper
WO2002035885A1 (de) * 2000-10-27 2002-05-02 BSH Bosch und Siemens Hausgeräte GmbH Elektrischer heizkörper
EP1342827A1 (de) * 2002-03-07 2003-09-10 BSH Bosch und Siemens Hausgeräte GmbH Elektrisch beheizbares Haushaltgerät
WO2004042132A2 (en) * 2002-11-07 2004-05-21 Irca S.P.A Conduit with improved electric heating element and clothes drying machine provided with such a conduit
EP1532919A1 (de) * 2003-11-24 2005-05-25 Indesit Company s.p.a. Vorrichtung und Verfahren zum Heizen der Arbeitsflüssigkeit in einer Waschmaschine
EP1538255A1 (de) * 2003-12-02 2005-06-08 DBK David + Baader GmbH Abdeckung für einen Wäschetrockner und Verfahren zu dessen Zusammenbau
EP1674028A2 (de) * 1991-12-20 2006-06-28 Fisher & Paykel Appliances Ltd. Geschirrspülmaschine mit einer Dickschicht-Heizplatte
WO2007074115A1 (en) * 2005-12-29 2007-07-05 Arcelik Anonim Sirketi A washing machine
EP1852536A1 (de) * 2005-02-24 2007-11-07 Sharp Kabushiki Kaisha Waschtrockner
US7425688B2 (en) 2004-05-07 2008-09-16 Dbk David + Baader Gmbh Heating assembly for a tumble dryer
EP2060670A1 (de) * 2007-11-14 2009-05-20 BSH Bosch und Siemens Hausgeräte GmbH Bauteil für ein Flüssigkeit führendes Gerät und Haushaltgerät zur Pflege von Wäschestücken mit einem derartigen Bauteil
WO2009068238A1 (de) * 2007-11-30 2009-06-04 E.G.O. Elektro-Gerätebau GmbH Verfahren zum betrieb einer waschmaschine mit einer heizeinrichtung
WO2012019854A1 (fr) * 2010-08-11 2012-02-16 Valeo Systemes Thermiques Bloc de chauffe pour radiateur electrique de chauffage
WO2014170210A1 (de) * 2013-04-19 2014-10-23 BSH Bosch und Siemens Hausgeräte GmbH Flächenheizeinrichtung zum aufheizen von wasser in einem laugenbehälter, waschmaschine und verfahren zum herstellen einer flächenheizeinrichtung
WO2016192332A1 (zh) * 2015-06-02 2016-12-08 青岛海尔滚筒洗衣机有限公司 一种具有蒸汽洗涤功能的洗衣机及控制方法
EP3573425A1 (de) * 2018-05-25 2019-11-27 E.G.O. ELEKTRO-GERÄTEBAU GmbH Verfahren zur herstellung einer heizeinrichtung und damit hergestellte heizeinrichtung
US10690391B2 (en) 2013-03-15 2020-06-23 Whirlpool Corporation Appliance using heated glass panels
DE102020103787A1 (de) 2020-02-13 2021-08-19 Miele & Cie. Kg Trockner
EP4093151A1 (de) * 2021-05-17 2022-11-23 Heraeus Nexensos GmbH Flexibler heizer mit steckverbindern

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB843904A (en) * 1958-12-10 1960-08-10 Therm O Lab Corp Improvements in and relating to electrical heating elements
DE3340313A1 (de) * 1983-11-08 1985-05-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Haushalt-waeschetrockner
EP0201967A1 (de) * 1985-05-09 1986-11-20 Ferro Techniek B.V. Heizvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB843904A (en) * 1958-12-10 1960-08-10 Therm O Lab Corp Improvements in and relating to electrical heating elements
DE3340313A1 (de) * 1983-11-08 1985-05-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Haushalt-waeschetrockner
EP0201967A1 (de) * 1985-05-09 1986-11-20 Ferro Techniek B.V. Heizvorrichtung

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1674028A3 (de) * 1991-12-20 2006-07-12 Fisher & Paykel Appliances Ltd. Geschirrspülmaschine mit einer Dickschicht-Heizplatte
EP1674028A2 (de) * 1991-12-20 2006-06-28 Fisher & Paykel Appliances Ltd. Geschirrspülmaschine mit einer Dickschicht-Heizplatte
GB2290210A (en) * 1993-02-15 1995-12-13 Strix Ltd Immersion heaters
GB2290210B (en) * 1993-02-15 1996-11-06 Strix Ltd Immersion heaters
AU680234B2 (en) * 1993-02-15 1997-07-24 Strix Limited Immersion heaters
US5793929A (en) * 1993-02-15 1998-08-11 Strix Limited Immersion heaters with heating elements in the form of printed circuit tracks
US5946448A (en) * 1993-02-15 1999-08-31 Strix Limited Methods of assembling immersion heaters with heating elements in the form of printed circuit tracks
WO1994018807A1 (en) * 1993-02-15 1994-08-18 Strix Limited Immersion heaters
EP0890669A2 (de) * 1997-07-11 1999-01-13 BSH Bosch und Siemens Hausgeräte GmbH Elektriches Wasch- und/oder Trockengerät mit elektrischem Heizelement
EP0890669A3 (de) * 1997-07-11 1999-06-02 BSH Bosch und Siemens Hausgeräte GmbH Elektriches Wasch- und/oder Trockengerät mit elektrischem Heizelement
DE19749958B4 (de) * 1997-11-03 2004-04-15 Miele & Cie. Kg Waschmaschine mit einem Rohrheizkörper
DE19749958A1 (de) * 1997-11-03 1999-05-06 Miele & Cie Waschmaschine mit einem Rohrheizkörper
WO2002035885A1 (de) * 2000-10-27 2002-05-02 BSH Bosch und Siemens Hausgeräte GmbH Elektrischer heizkörper
DE10209975A1 (de) * 2002-03-07 2003-09-25 Bsh Bosch Siemens Hausgeraete Elektrisch beheizbare Waschmaschine
EP1342827A1 (de) * 2002-03-07 2003-09-10 BSH Bosch und Siemens Hausgeräte GmbH Elektrisch beheizbares Haushaltgerät
WO2004042132A3 (en) * 2002-11-07 2004-06-10 Irca Spa Conduit with improved electric heating element and clothes drying machine provided with such a conduit
WO2004042132A2 (en) * 2002-11-07 2004-05-21 Irca S.P.A Conduit with improved electric heating element and clothes drying machine provided with such a conduit
EP1532919A1 (de) * 2003-11-24 2005-05-25 Indesit Company s.p.a. Vorrichtung und Verfahren zum Heizen der Arbeitsflüssigkeit in einer Waschmaschine
EP1538255A1 (de) * 2003-12-02 2005-06-08 DBK David + Baader GmbH Abdeckung für einen Wäschetrockner und Verfahren zu dessen Zusammenbau
US8371040B2 (en) 2003-12-02 2013-02-12 Dbk David + Baader Gmbh Cover for a clothes dryer and assembling method thereof
US7425688B2 (en) 2004-05-07 2008-09-16 Dbk David + Baader Gmbh Heating assembly for a tumble dryer
EP1852536A4 (de) * 2005-02-24 2012-08-08 Sharp Kk Waschtrockner
EP1852536A1 (de) * 2005-02-24 2007-11-07 Sharp Kabushiki Kaisha Waschtrockner
WO2007074115A1 (en) * 2005-12-29 2007-07-05 Arcelik Anonim Sirketi A washing machine
EP2060670A1 (de) * 2007-11-14 2009-05-20 BSH Bosch und Siemens Hausgeräte GmbH Bauteil für ein Flüssigkeit führendes Gerät und Haushaltgerät zur Pflege von Wäschestücken mit einem derartigen Bauteil
CN101932765B (zh) * 2007-11-30 2012-08-15 E.G.O.电气设备制造股份有限公司 用于使具有加热装置的洗衣机运行的方法
JP2011504774A (ja) * 2007-11-30 2011-02-17 エーゲーオー エレクトロ・ゲレーテバウ ゲーエムベーハー 加熱ユニットを有する洗濯機を動作させるための方法
US7941884B2 (en) 2007-11-30 2011-05-17 E.G.O. Elektro-Geraetebau Gmbh Method for operating a washing machine having a heating unit
DE102007058833A1 (de) * 2007-11-30 2009-06-10 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung für eine Waschmaschine, Waschmaschine mit einer Heizeinrichtung sowie Verfahren zum Betrieb einer Heizeinrichtung
WO2009068238A1 (de) * 2007-11-30 2009-06-04 E.G.O. Elektro-Gerätebau GmbH Verfahren zum betrieb einer waschmaschine mit einer heizeinrichtung
WO2012019854A1 (fr) * 2010-08-11 2012-02-16 Valeo Systemes Thermiques Bloc de chauffe pour radiateur electrique de chauffage
FR2963866A1 (fr) * 2010-08-11 2012-02-17 Valeo Systemes Thermiques Bloc de chauffe pour radiateur electrique de chauffage
US10690391B2 (en) 2013-03-15 2020-06-23 Whirlpool Corporation Appliance using heated glass panels
WO2014170210A1 (de) * 2013-04-19 2014-10-23 BSH Bosch und Siemens Hausgeräte GmbH Flächenheizeinrichtung zum aufheizen von wasser in einem laugenbehälter, waschmaschine und verfahren zum herstellen einer flächenheizeinrichtung
WO2016192332A1 (zh) * 2015-06-02 2016-12-08 青岛海尔滚筒洗衣机有限公司 一种具有蒸汽洗涤功能的洗衣机及控制方法
EP3573425A1 (de) * 2018-05-25 2019-11-27 E.G.O. ELEKTRO-GERÄTEBAU GmbH Verfahren zur herstellung einer heizeinrichtung und damit hergestellte heizeinrichtung
DE102020103787A1 (de) 2020-02-13 2021-08-19 Miele & Cie. Kg Trockner
EP4093151A1 (de) * 2021-05-17 2022-11-23 Heraeus Nexensos GmbH Flexibler heizer mit steckverbindern
WO2022243024A1 (de) * 2021-05-17 2022-11-24 Heraeus Nexensos Gmbh Flexibles heizelement mit steckverbindern

Also Published As

Publication number Publication date
IT1225119B (it) 1990-11-02
IT8845750A0 (it) 1988-07-25
EP0352499A3 (de) 1990-07-18

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