EP0906984A1 - Heating element for household electrical appliances - Google Patents

Heating element for household electrical appliances Download PDF

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Publication number
EP0906984A1
EP0906984A1 EP98117655A EP98117655A EP0906984A1 EP 0906984 A1 EP0906984 A1 EP 0906984A1 EP 98117655 A EP98117655 A EP 98117655A EP 98117655 A EP98117655 A EP 98117655A EP 0906984 A1 EP0906984 A1 EP 0906984A1
Authority
EP
European Patent Office
Prior art keywords
heating element
plate
household electrical
electrical appliances
channel
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Withdrawn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
EP98117655A
Other languages
German (de)
English (en)
French (fr)
Inventor
Duilio C/O I.R.C.A. S.P.A. Capraro
Roberto C/O I.R.C.A. S.P.A. Colombo
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.)
IRCA SpA Industria Resistenze Corazzate e Affini
Original Assignee
IRCA SpA Industria Resistenze Corazzate e Affini
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 IRCA SpA Industria Resistenze Corazzate e Affini filed Critical IRCA SpA Industria Resistenze Corazzate e Affini
Publication of EP0906984A1 publication Critical patent/EP0906984A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • A47L15/4285—Water-heater arrangements

Definitions

  • This invention relates to a heating element for household electrical appliances.
  • the operating cycle comprises a wash stage with previously heated water
  • this heating is achieved by an armoured resistance element housed in the lower part of the appliance.
  • the water is circulated through a suitable user circuit to be heated to the correct temperature.
  • the resistance element is mounted on the base of the wash tub and is supported by support elements.
  • the resistance element is positioned to project between the tub and the rotary drum.
  • a heating element comprising a spiral-wound armoured resistor with its turns embedded in a tube partly projecting from its inner surface lapped by the water, the tube being provided with two couplings for its connection to a water feed circuit, these being positioned outside the wash tub.
  • both types of heating element have the drawback of difficulty of replacement and insufficient protection against possible overheating of the element, as the sensor are generally in contact with the surface of the tub and not with the actual heating element.
  • the heating of the invention consists substantially of a steel disc 2 bent as a step along its circumferential edge, to form an annular portion 4.
  • a substantially flat aluminium member 6 constructed by pressing, and comprising a channel of U cross-section which extends as a curve.
  • an armoured resistance element 8 of aluminium construction housing internally a spiral resistor 9 separated from the aluminium sheath by dielectric material, for example magnesium dioxide.
  • the member 6 is bonded to the disc 2 by placing the steel disc in contact with a parallelepiped aluminium block, heating both and then subjecting them to the action of a press which deforms the aluminium block and at the same time bonds it to the disc.
  • the resistance element 8 is then pressed into the U-shaped channel 7 and consequently remains securely fixed to it.
  • the heating element assembled in this manner is fitted to the base 10 of the household electrical appliance 11 in which there has previously been provided a hole 12 of diameter corresponding to the diameter of the central part of the disc, and is then fixed to said base, for example by screws 13, after interposing an O-ring 14 for sealing purpose between the base and the annular rim 4.
  • Control sensors 16 can be advantageously housed in the space defined by the loop formed by the channel.
  • the heating element consists of a disc to which a resistive track is sandwiched between two layers of dielectric paste.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Resistance Heating (AREA)
  • Cookers (AREA)
EP98117655A 1997-10-01 1998-09-17 Heating element for household electrical appliances Withdrawn EP0906984A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97VE000042A IT1297492B1 (it) 1997-10-01 1997-10-01 Elemento scaldante per apparecchi elettrodomestici.
ITVE970042 1997-10-01

Publications (1)

Publication Number Publication Date
EP0906984A1 true EP0906984A1 (en) 1999-04-07

Family

ID=11424309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117655A Withdrawn EP0906984A1 (en) 1997-10-01 1998-09-17 Heating element for household electrical appliances

Country Status (2)

Country Link
EP (1) EP0906984A1 (it)
IT (1) IT1297492B1 (it)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1177758A2 (en) * 2000-07-31 2002-02-06 CANDY S.p.A. Unit for heating water in a dishwasher machine
WO2003102290A1 (de) * 2002-05-29 2003-12-11 Aweco Appliance Systems Gmbh & Co. Kg Haushaltsmaschine
DE102004003952B4 (de) * 2003-01-24 2006-10-05 Eichenauer Heizelemente Gmbh & Co. Kg Heizeinrichtung zur Beheizung von elektrischen Haushaltsgeräten
DE102006014785B3 (de) * 2006-03-29 2007-03-08 Miele & Cie. Kg Laugenbehälter mit plattenförmiger Heizeinrichtung
WO2009101081A1 (en) * 2008-02-12 2009-08-20 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Electric heating element
WO2011121395A1 (en) * 2010-04-01 2011-10-06 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Beverage dispensing machine
EP2987446A1 (en) * 2014-08-22 2016-02-24 LG Electronics Inc. Dishwasher

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1898429U (de) * 1964-05-05 1964-08-13 Constructa Werke G M B H Elektrische heizung, insbesondere fuer eine trommelwaschmaschine.
FR2534438A1 (fr) * 1982-10-12 1984-04-13 Bosch Siemens Hausgeraete Chauffage electrique pour lave-vaisselle
DE9100476U1 (de) * 1991-01-16 1991-04-04 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Reinigungsmaschinen-Beheizung
DE4104450A1 (de) * 1991-02-14 1992-08-20 Manfred Stoll Verfahren und einrichtung zum waschen von textilien in einem waschvollautomaten nach dem doppeltrommelprinzip und recyclingbehaelter zum speichern von flotten
EP0539917A1 (de) * 1991-10-28 1993-05-05 BOSCH-SIEMENS HAUSGERÄTE GmbH Trommelwasch- oder Geschirrspülmaschine mit einem Laugenbehälter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1898429U (de) * 1964-05-05 1964-08-13 Constructa Werke G M B H Elektrische heizung, insbesondere fuer eine trommelwaschmaschine.
FR2534438A1 (fr) * 1982-10-12 1984-04-13 Bosch Siemens Hausgeraete Chauffage electrique pour lave-vaisselle
DE9100476U1 (de) * 1991-01-16 1991-04-04 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Reinigungsmaschinen-Beheizung
DE4104450A1 (de) * 1991-02-14 1992-08-20 Manfred Stoll Verfahren und einrichtung zum waschen von textilien in einem waschvollautomaten nach dem doppeltrommelprinzip und recyclingbehaelter zum speichern von flotten
EP0539917A1 (de) * 1991-10-28 1993-05-05 BOSCH-SIEMENS HAUSGERÄTE GmbH Trommelwasch- oder Geschirrspülmaschine mit einem Laugenbehälter

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1177758A2 (en) * 2000-07-31 2002-02-06 CANDY S.p.A. Unit for heating water in a dishwasher machine
EP1177758A3 (en) * 2000-07-31 2002-10-30 CANDY S.p.A. Unit for heating water in a dishwasher machine
WO2003102290A1 (de) * 2002-05-29 2003-12-11 Aweco Appliance Systems Gmbh & Co. Kg Haushaltsmaschine
US7455065B2 (en) 2002-05-29 2008-11-25 Aweco Appliance Systems Gmbh & Co. Kg Household appliance
DE102004003952B4 (de) * 2003-01-24 2006-10-05 Eichenauer Heizelemente Gmbh & Co. Kg Heizeinrichtung zur Beheizung von elektrischen Haushaltsgeräten
DE102006014785B3 (de) * 2006-03-29 2007-03-08 Miele & Cie. Kg Laugenbehälter mit plattenförmiger Heizeinrichtung
EP1840258A1 (de) 2006-03-29 2007-10-03 MIELE & CIE. KG Laugenbehälter mit plattenförminger Heizeinrichtung
WO2009101081A1 (en) * 2008-02-12 2009-08-20 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Electric heating element
WO2011121395A1 (en) * 2010-04-01 2011-10-06 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Beverage dispensing machine
US9526372B2 (en) 2010-04-01 2016-12-27 I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini Beverage dispensing machine
EP2987446A1 (en) * 2014-08-22 2016-02-24 LG Electronics Inc. Dishwasher
US10258218B2 (en) 2014-08-22 2019-04-16 Lg Electronics Inc. Dishwasher

Also Published As

Publication number Publication date
IT1297492B1 (it) 1999-12-17
ITVE970042A1 (it) 1999-04-01
ITVE970042A0 (it) 1997-10-01

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