EP0903999B1 - Verfahren zum heizen von wasser und luft in einem waschgang, insbesonderefür geschirrspülmaschinen, widerstandselement und geschirrspülmaschinezur durchfürung dieses verfahrens. - Google Patents

Verfahren zum heizen von wasser und luft in einem waschgang, insbesonderefür geschirrspülmaschinen, widerstandselement und geschirrspülmaschinezur durchfürung dieses verfahrens. Download PDF

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Publication number
EP0903999B1
EP0903999B1 EP97923842A EP97923842A EP0903999B1 EP 0903999 B1 EP0903999 B1 EP 0903999B1 EP 97923842 A EP97923842 A EP 97923842A EP 97923842 A EP97923842 A EP 97923842A EP 0903999 B1 EP0903999 B1 EP 0903999B1
Authority
EP
European Patent Office
Prior art keywords
machine
heating
wall
heating element
resistance element
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.)
Revoked
Application number
EP97923842A
Other languages
English (en)
French (fr)
Other versions
EP0903999A1 (de
Inventor
Roberto Colombo
Duilio Capraro
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11424184&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0903999(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by IRCA SpA Industria Resistenze Corazzate e Affini filed Critical IRCA SpA Industria Resistenze Corazzate e Affini
Publication of EP0903999A1 publication Critical patent/EP0903999A1/de
Application granted granted Critical
Publication of EP0903999B1 publication Critical patent/EP0903999B1/de
Anticipated expiration legal-status Critical
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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
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements

Definitions

  • This invention relates to a method for heating water and air in a washing cycle, and air during the drying cycle, and a machine implementing the method.
  • the water is circulated by an appropriate spray circuit to be raised to the correct temperature by contact with the resistance element.
  • a traditional armoured resistance element visible on the appliance base is used.
  • the water is heated by passing it through a steel or plastic tube provided internally with a resistance element.
  • FR-A-2.534.438 which discloses all of the features of the first part of claim 1, relates to a heating element for a dishwasher machine consisting of a plate applied to a hole provided in the bottom of the machine. To the outer surface of the plate a heating element is applied.
  • US-A-1.983.836 relates to a washing machine in which an electrical heating unit is provided mounted outside and adjacent the surface of the machine.
  • the invention foresees a machine as described in claim 4.
  • a box casing 3 defining a substantially parallelepiped compartment 4 is applied to the outside of the base 1 which is thermoconducting of a dishwasher 2.
  • a reflector 5 preferably of aluminium construction and supporting ceramic supports 6 for two heating elements formed from superposed resistive wires 7,7' adsorbing different powers.
  • Each resistance wire 7,7' is connected to a thermostat 8 positioned in contact with the base 1.
  • the heating element is used in the same manner as traditional resistance elements for dishwashers.
  • the lower resistance element 7 of greater absorbed power (1800-2000 W) is activated to, when hot, irradiate the base 1 of the dishwasher 2, so heating the water contained in it at the predetermined temperature.
  • the upper resistance element 7' (of 50-200 W absorbed power) is activated for a certain time period to cause the moisture contained within the dishwasher to condense and achieve drying of the crockery contained in it.
  • the invention has been described with reference to a bare-wire resistance element, but the method can also be implemented with armoured resistance elements, halogen lamps, quartz tubes with an inner resistive wire, and any other resistance element able to radiate heat.
  • the resistance consists of a cylindrical body 9, closed at the upper part, made of ceramic fibres, covered by a metal layer 10, and housing a resistance wire 11.
  • the body 5 is housed in a box casing 3.
  • This embodiment presents the further advantage of not requiring the operating of the resistance during drying since the same heat is used accumulated by the body 9 during the heating of the water.
  • the resistance element has been shown placed under the bottom of the dishwasher but it is also possible to place the resistence element outside a thermoconductive wall of the dishwsher which during the wash stage is lapped by the sprayed water.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Resistance Heating (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Detergent Compositions (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Claims (11)

  1. Verfahren zum Heizen von Wasser und Luft während des Waschgangs und der Luft während des Trockengangs in Geschirrspülmaschinen und Waschmaschinen, indem von außen eine wärmeleitende Wand der Maschine geheizt wird, gekennzeichnet durch kontaktlose Strahlungsbeheizung.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die kontaktlose Strahlungsbeheizung durch wenigstens ein Widerstandselement durchgeführt wird, das außerhalb der Wand der Maschine angeordnet ist.
  3. Verfahren nach Anspruch 2, gekennzeichnet durch die Verwendung zweier Widerstandselemente, die unterschiedliche Leistung absorbieren und alle außerhalb der Wand der Maschine angeordnet sind.
  4. Geschirrspül- oder Waschmaschine zur Durchführung des in den Ansprüchen 1 bis 3 beanspruchten Verfahrens, dadurch gekennzeichnet, dass sie ein Strahlungsheizelement in Form eines Widerstandes (7, 7') aufweist, der außerhalb einer wärmeleitenden Wand (1) der Geschirrspül- oder Waschmaschine angeordnet ist, wobei der Widerstand nicht mit der Wand in Berührung ist.
  5. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass das Heizelement aus einem Widerstandsdraht besteht.
  6. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass das Heizelement aus einem armierten Widerstandselement besteht.
  7. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass das Widerstandselement aus einer Halogenlampe besteht.
  8. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass das Widerstandselement aus einem Quarz/Keramik-Rohr besteht.
  9. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass das Widerstandselement innerhalb eines Aluminiumreflektors (5) angeordnet ist, dessen reflektierende Oberfläche auf die wärmeleitende Wand der Maschine gerichtet ist.
  10. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass das Heizelement innerhalb eines oben offenen Gehäuses (3) untergebracht ist, das auf der Maschinengrundplatte befestigt ist.
  11. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass das Heizelement aus einem im unteren Bereich geschlossen zylindrischen Körper (9) besteht, der aus wärmeisolierendem Material gefertigt ist und einen Widerstandsdraht (11) aufnimmt.
EP97923842A 1996-05-10 1997-05-02 Verfahren zum heizen von wasser und luft in einem waschgang, insbesonderefür geschirrspülmaschinen, widerstandselement und geschirrspülmaschinezur durchfürung dieses verfahrens. Revoked EP0903999B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITVE960018 1996-05-10
IT96VE000018A IT1294981B1 (it) 1996-05-10 1996-05-10 Procedimento per riscaldare l'acqua e l'aria in un ciclo di lavaggio particolarmente per lavastoviglie e resistenza per effettuare il
PCT/EP1997/002259 WO1997042866A1 (en) 1996-05-10 1997-05-02 Method for heating water and air in a wash cycle, particularly for dishwashers, resistance element to carry out the method and dishwasher implementing the method

Publications (2)

Publication Number Publication Date
EP0903999A1 EP0903999A1 (de) 1999-03-31
EP0903999B1 true EP0903999B1 (de) 2001-10-17

Family

ID=11424184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97923842A Revoked EP0903999B1 (de) 1996-05-10 1997-05-02 Verfahren zum heizen von wasser und luft in einem waschgang, insbesonderefür geschirrspülmaschinen, widerstandselement und geschirrspülmaschinezur durchfürung dieses verfahrens.

Country Status (7)

Country Link
EP (1) EP0903999B1 (de)
AT (1) ATE206894T1 (de)
AU (1) AU2951897A (de)
DE (1) DE69707445T2 (de)
ES (1) ES2163771T3 (de)
IT (1) IT1294981B1 (de)
WO (1) WO1997042866A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1318290B1 (it) * 2000-07-31 2003-07-28 Candy Spa Apparato per il riscaldamento di acqua in una macchina lavastoviglie.
ITTO20070939A1 (it) * 2007-12-24 2009-06-25 Elbi Int Spa Dispositivo riscaldatore di fluidi per una macchina lavatrice, in particolare una macchina lavastoviglie

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1983836A (en) * 1933-09-29 1934-12-11 Anna F Bergquist Washing machine
US3098922A (en) * 1962-03-21 1963-07-23 John J Paxton Domestic smoothing iron
DE8228655U1 (de) * 1982-10-12 1987-04-23 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Elektrische Heizung für Geschirrspülmaschinen

Also Published As

Publication number Publication date
ITVE960018A1 (it) 1997-11-10
ATE206894T1 (de) 2001-11-15
AU2951897A (en) 1997-12-05
IT1294981B1 (it) 1999-04-27
DE69707445D1 (de) 2001-11-22
ITVE960018A0 (it) 1996-05-10
ES2163771T3 (es) 2002-02-01
EP0903999A1 (de) 1999-03-31
DE69707445T2 (de) 2002-06-27
WO1997042866A1 (en) 1997-11-20

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