WO1993026138A1 - Panneau chauffant electrique et procede de fabrication d'un tel corps de chauffe - Google Patents

Panneau chauffant electrique et procede de fabrication d'un tel corps de chauffe Download PDF

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Publication number
WO1993026138A1
WO1993026138A1 PCT/AT1993/000100 AT9300100W WO9326138A1 WO 1993026138 A1 WO1993026138 A1 WO 1993026138A1 AT 9300100 W AT9300100 W AT 9300100W WO 9326138 A1 WO9326138 A1 WO 9326138A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
temperature
electric panel
resistant
electrical
Prior art date
Application number
PCT/AT1993/000100
Other languages
German (de)
English (en)
Inventor
Heinz Zorn
David Macher
Original Assignee
Heinz Zorn
David Macher
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 Heinz Zorn, David Macher filed Critical Heinz Zorn
Publication of WO1993026138A1 publication Critical patent/WO1993026138A1/fr

Links

Classifications

    • 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • 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
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the invention relates to an electrical panel radiator in which at least one electrical resistor is arranged on a temperature-resistant carrier material and is connected to electrical connections, and to a method for producing such a panel radiator.
  • Electric radiators have already become known, in particular, as heating plates for heating food, with electrical resistance material, for example resistance wire, mostly being fixed to a carrier in the form of spiral windings or in the form of conductor tracks.
  • electrical resistance material for example resistance wire
  • a correspondingly temperature-resistant, for example ceramic, material was usually chosen as the carrier.
  • a further disadvantage of conventional electrical panel radiators is the fact that the fixing of resistance wires, in particular spirals or conductor tracks, to a carrier material cannot take place continuously over the entire length of the resistor wire or the heating conductor, as a result of which insulating air pockets between the carrier - material and conductor tracks had to be accepted.
  • electrical conductive lacquers instead of such resistance wires in the form of heating spirals or in the case of surface heating elements using resistance tracks, it has already been proposed to use electrical conductive lacquers.
  • electrical conductive lacquers are only temperature-resistant to a limited extent, and their relatively low mechanical resistance and strength also depend to a large extent on temperature.
  • the invention now aims to provide an electric panel radiator of the type mentioned at the outset, with which any geometries of a panel radiator can be easily realized, whereby an extremely wear-resistant and stable surface of the radiator is created, which has a constant and homogeneous temperature distribution having.
  • the invention aims to provide a manufacturing method with which such a surface heating element can be manufactured in a particularly simple manner.
  • the electrical panel radiator of the type mentioned at the outset essentially consists in the electrical resistance being designed as a spray coating which extends over the surface of a carrier body.
  • a spray coating which for example as flame spraying or
  • Plasma spraying is known, allows a homogeneous
  • the resistance value of the resisted material being entire layer can be influenced.
  • the resistance value and the measure of being able to adapt the layer thickness to the respective requirements and in particular the respective choice of material heating elements of the desired performance can be achieved on any geometries, since the thickness or thickness of the layer of the resistance material to be sprayed on the performance of the heating element can be influenced directly.
  • An essential advantage of the spray coating is that a homogeneous power consumption over the surface and thus a homogeneous temperature release over the surface can be achieved if the spray coating is deposited in a correspondingly homogeneous manner and with a constant thickness.
  • the electrical panel radiator is advantageously designed such that the coated surface or its development has an essentially rectangular outline and has a contact strip on two mutually parallel edges, which is connected to the connections, the contact strips in a particularly simple manner by a corresponding increase in the layer thickness can be formed at the edges of the spray layer in the contact area. If the contact strips are provided on two mutually parallel edges, a homogeneous temperature distribution over the surface is ensured.
  • the carrier can be designed in the form of a plate, in which case, of course, a development of the surface with an essentially rectangular outline can also be formed by the jacket of a correspondingly large tube.
  • the process according to the invention for the production of such an electrical panel radiator is essentially characterized in that a metallic coating of resistance or heating conductor material is deposited on a temperature-resistant support by means of an arc spraying process.
  • a metallic coating of resistance or heating conductor material is deposited on a temperature-resistant support by means of an arc spraying process.
  • the use of the arc spraying method such as flame spraying or plasma spraying, possible a particularly simple influence on the thickness of the layers to be deposited and thus a particularly good influence on the desired output of the heating element.
  • the full-surface design of the heating element with sprayed-on resistance material made possible by this coating technique by means of an arc spraying process, furthermore enables optimal heat transfer and minimal losses during the transition to the medium to be heated.
  • the arc spraying method also enables contacting for the purpose of forming the electrical connections by correspondingly increasing the coating thickness in the contact area, the use of the arc spraying method making it possible to use any resistance materials which could be used in other applications due to their mechanical strength values would be unsuitable.
  • the resistance material can be made much less thick and the material used less, and above all, the possibility is created to design panel radiators in such a way that they are even operated in a voltage range that is permissible for direct contact.
  • the correspondingly permissible resistance values for achieving a certain performance can be achieved more with a relatively low coating, the method preferably being carried out in such a way that the metallic coating has a thickness of 0.05 up to 0.2 mm is applied.
  • the metallic coating has a thickness of 0.05 up to 0.2 mm is applied.
  • Resistance wire alloys or heat conductor alloys are used, ceramic materials and / or temperature-resistant plastics preferably being used as carriers.
  • Tungsten, tungsten-rhenium, molybdenum, molybdenum-rhenium, Alsynchrom, Kanthai, Megapyr, Cekas, Densimet, Nickelin, Constantan, Rheotan or Rhodium are preferred as the material for the metallic coating their respective specific resistances can be deposited in such a way that the thickness of the coating means that resistance values below 10 ⁇ , in particular below 5 ⁇ , are set between the connections, as this appears to be particularly advantageous, in particular for low-voltage heaters.

Landscapes

  • Resistance Heating (AREA)

Abstract

Panneau chauffant électrique, dans lequel au moins une résistance électrique disposée sur un substrat résistant à la température est reliée à des raccordements électriques, la résistance électrique se présentant sous la forme d'un revêtement appliqué par pulvérisation s'étendant sur toute la surface d'un support. Dans le procédé de fabrication d'un panneau chauffant électrique, on procède de telle sorte qu'un revêtement métallique résistif ou conducteur de la chaleur soit déposé par pulvérisation à l'arc sur un substrat résistant à la température.
PCT/AT1993/000100 1992-06-12 1993-06-14 Panneau chauffant electrique et procede de fabrication d'un tel corps de chauffe WO1993026138A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1213/92 1992-06-12
AT121392 1992-06-12

Publications (1)

Publication Number Publication Date
WO1993026138A1 true WO1993026138A1 (fr) 1993-12-23

Family

ID=3509069

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1993/000100 WO1993026138A1 (fr) 1992-06-12 1993-06-14 Panneau chauffant electrique et procede de fabrication d'un tel corps de chauffe

Country Status (1)

Country Link
WO (1) WO1993026138A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996042184A1 (fr) * 1995-06-08 1996-12-27 Deeman Product Development Limited Elements de chauffage electriques
GB2357299A (en) * 1999-12-14 2001-06-20 Ceramaspeed Ltd Insulation component
DE10320379A1 (de) * 2003-05-06 2004-12-02 Leoni Ag Elektrisch beheizbares Element und Verfahren zum Herstellen eines elektrisch beheizbaren Elements
EP2278851A1 (fr) 2009-07-24 2011-01-26 THERM-IC Products GmbH Nfg. & Co. KG Plaque de verre pouvant être chauffée électriquement, son procédé de fabrication et fenêtre

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB342300A (en) * 1929-10-28 1931-01-28 Hotpoint Electric Appliance Co Improvements in and relating to electric heating units
GB386742A (en) * 1931-11-11 1933-01-26 Leonard John Fowler Improvements in connection with electrical heating apparatus and in the method of constructing the same
US3425864A (en) * 1965-07-21 1969-02-04 Templeton Coal Co Method for making electric resistance heaters
DE1924202A1 (de) * 1969-05-12 1970-11-19 Annawerk Keramische Betr E Gmb Flaechenfoermige,elektrische Heizvorrichtung
DE2719174A1 (de) * 1977-04-29 1978-11-02 Licentia Gmbh Heizbarer spiegel, insbesondere aussenspiegel fuer kraftfahrzeuge
DE3202239A1 (de) * 1982-01-25 1983-08-04 Vereinigte Glaswerke Gmbh, 5100 Aachen Spiegel
EP0302589A1 (fr) * 1987-06-27 1989-02-08 Jeffery Boardman Procédé pour fabriquer des éléments de chauffage électriques et éléments de chauffage électriques fabriqués d'après ce procédé

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB342300A (en) * 1929-10-28 1931-01-28 Hotpoint Electric Appliance Co Improvements in and relating to electric heating units
GB386742A (en) * 1931-11-11 1933-01-26 Leonard John Fowler Improvements in connection with electrical heating apparatus and in the method of constructing the same
US3425864A (en) * 1965-07-21 1969-02-04 Templeton Coal Co Method for making electric resistance heaters
DE1924202A1 (de) * 1969-05-12 1970-11-19 Annawerk Keramische Betr E Gmb Flaechenfoermige,elektrische Heizvorrichtung
DE2719174A1 (de) * 1977-04-29 1978-11-02 Licentia Gmbh Heizbarer spiegel, insbesondere aussenspiegel fuer kraftfahrzeuge
DE3202239A1 (de) * 1982-01-25 1983-08-04 Vereinigte Glaswerke Gmbh, 5100 Aachen Spiegel
EP0302589A1 (fr) * 1987-06-27 1989-02-08 Jeffery Boardman Procédé pour fabriquer des éléments de chauffage électriques et éléments de chauffage électriques fabriqués d'après ce procédé

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996042184A1 (fr) * 1995-06-08 1996-12-27 Deeman Product Development Limited Elements de chauffage electriques
US5889261A (en) * 1995-06-08 1999-03-30 Deeman Product Development Limited Electrical heating elements
GB2357299A (en) * 1999-12-14 2001-06-20 Ceramaspeed Ltd Insulation component
DE10320379A1 (de) * 2003-05-06 2004-12-02 Leoni Ag Elektrisch beheizbares Element und Verfahren zum Herstellen eines elektrisch beheizbaren Elements
EP2278851A1 (fr) 2009-07-24 2011-01-26 THERM-IC Products GmbH Nfg. & Co. KG Plaque de verre pouvant être chauffée électriquement, son procédé de fabrication et fenêtre

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