EP2034797B1 - Ensemble de chauffage à résistance électrique - Google Patents

Ensemble de chauffage à résistance électrique Download PDF

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Publication number
EP2034797B1
EP2034797B1 EP20080163921 EP08163921A EP2034797B1 EP 2034797 B1 EP2034797 B1 EP 2034797B1 EP 20080163921 EP20080163921 EP 20080163921 EP 08163921 A EP08163921 A EP 08163921A EP 2034797 B1 EP2034797 B1 EP 2034797B1
Authority
EP
European Patent Office
Prior art keywords
resistance
wire
micanite
subassembly
ceramic body
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.)
Not-in-force
Application number
EP20080163921
Other languages
German (de)
English (en)
Other versions
EP2034797A3 (fr
EP2034797A2 (fr
Inventor
Levente Vargha
Nicolae-Horia Calburean
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.)
Scel-Co Sa
Original Assignee
Scel-Co Sa
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 Scel-Co Sa filed Critical Scel-Co Sa
Priority to PL08163921T priority Critical patent/PL2034797T3/pl
Publication of EP2034797A2 publication Critical patent/EP2034797A2/fr
Publication of EP2034797A3 publication Critical patent/EP2034797A3/fr
Application granted granted Critical
Publication of EP2034797B1 publication Critical patent/EP2034797B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H05B3/20—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
    • H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
    • H05B3/283—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material the insulating material being an inorganic material, e.g. ceramic

Definitions

  • the invention relates to an electrical resistance heating assembly for average temperatures, designed to function at temperatures of maximum 500 degrees Celsius, resistance that is used in thermo techniques.
  • thermo-insulating layer The electric resistances known so far have the disadvantage of the heat loss due to the only thermo-insulating layer, they are fragile, have a higher thermic inertia, which implies a higher energy consumption, have a high sensitivity to humidity, there is a possibility that the wire breaks because of electric shocks, since the insulation material can move, there is the risk of the apparition of corrugations due to distortions from the heat when the coverage area of the heating element is not sufficiently thick.
  • the technical problem solved by the invention consists in the supplementary insulation of the conductive parts and the protection against the electric shocks and eliminates the disadvantages mentioned above by constructing an electric resistance heating which functions at temperatures of maximum 500 degrees Celsius, which comprises a ceramic body made of no hydroscopic material, 0% porosity, inside which a resistance sub -assembly is placed between two micanite plates, where the resistance subassembly itself comprises a first first micanite support which has a KANTHAL D wire wrapped around itself and a second micanite support, the ends of the wire being insulated by the two micanite plates, the charging of the electric resistance being done through two electrical, flexible cables having a double thermo resistant insulation, the connection to the ends of the Khanthal being done in such a way that the non insulated ends are fasten between the two micanite plates, the ceramic body having its ends filled with a thermo- resistant adhesive.
  • the electric resistance heating according to the invention which operates at temperatures of maximum 500 degrees Celsius comprises a ceramic body 1 of rectangular shape, which has applied in its longitudinal section an almost rectangular cut a, where the ceramic body is made of no hydroscopic material, 0% porosity, for example -cordierite. Inside the cut a, the resistance subassembly is mounted between two micanite plates 2.
  • the resistance subassembly a comprises a first support 3 of rectangular shape made of micanite. On the lateral surfaces, lengthwise, the support 3 has applied on it some ditches b of 0,5 mm depth on which a resistance wire, preferably, a Kanthal D wire 4 is wrapped around. On the ends of the support 3 are applied some apertures c through which the wire 4 crosses and a d aperture for each.
  • a second support 5 made of micanite is disposed, through the apertures c of which the Kanthal D wire 4 is also introduced, to mechanically fasten the supports.
  • the two supports 3 and 5 are next to each other and mounted between two micanite 2 insulating plates, the assembly being solidarized by capsules 6 which penetrate the apertures d.
  • the ends of the wire 4 are fastened by the two crimps 7 and are insulated by the two micanite plates 2 in between which the subassembly A is positioned.
  • the charging of the electrical resistance is done through two electrical, flexible cables 8 which are insulated with double thermo resistant insulation.
  • the ends of the ceramic body 1 are filled with a temperature resistant silicon adhesive 10.
  • the electrical resistance according to the invention is a class II device, where the protection against the electric shocks is secured not only by the basic insulation achieved by the two micanite plates but also through the ceramic body 1, made of cordierite, a no hydroscopic material and the temperature resistant adhesive 10 which insures the double protection of the device.
  • the Kanthal D wire 4 is an internationally accepted as a standard descriptive term which has acquired a precise meaning.
  • the Kanthal D wire 4 concerns a specific class of resistance wires produced by the company "KanthalTM" (Address: Kanthal, Box 502, SE-734 27 Hallstahammar, Sweden, phone : +46 220 210 00; telefax: +46 220 163 50; e-mail: info@kanthal.com ; web-page: www.kanthal.com) and described on page 21 of the Kanthal Handbook entitled “Resistance Heating Alloys and Systems for Industrial Furnaces” (for more details, see web-page: http://hitempproducts.thomasnet.com/Asset/The-Kanthal-Furnace-Mini-Handbook---Metric-version-.pdf ) as mentioned below: KANTHAL D Wire and strip.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Resistance Heating (AREA)

Claims (2)

  1. Ensemble du chauffage a résistance électrique, comprenant un corps céramique (1) et un sous-ensemble de résistance (A), dans lequel te sub-ensemble de résistance (A) est fabriqué dans un fil de section circulaire isolés au température, et les ouvertures libres du corps céramique (1) étant remplis d'un adhésif, caractérisé en ce que, en vue d'assurer le bon fonctionnement à des températures maximum de 500 degrés Celsius, le corps céramique (1) a une forme rectangulaire et est réalisée d'une matériau non hygroscopique avec 0% porosité, avec ses extrémités remplie d'un adhésif thermo-résistant (10), et l'ensemble de résistance (A) est fixé entre deux plaques de micanite (2) et monté à l'intérieur d'une ouverture rectangulaire (a) qui est coupé à l'intérieur du corps céramique (1), le sous-ensemble de résistance (A) comprenant un premier support de micanite (3) et un second support de micanite (5), le premier support de micanite (3) comportent un fil de résistance (4) enroulé autour de lui et les extrémités non isolé du fil (4) étant isolé par les deux plaques de micanite (2) entre lesquels le sous-ensemble (A) est affiché, la charge de la résistance électrique étant effectuée au moyen de deux câbles électriques flexibles (8) avec une double isolation thermique (9).
  2. Ensemble du chauffage a résistance électrique selon la revendication 1, caractérisé en ce que le fil de résistance (4) est un fil Kanthal (4).
EP20080163921 2007-09-10 2008-09-09 Ensemble de chauffage à résistance électrique Not-in-force EP2034797B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08163921T PL2034797T3 (pl) 2007-09-10 2008-09-09 Zespół grzejny opornika elektrycznego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ROA200700637A RO123467B1 (ro) 2007-09-10 2007-09-10 Rezistenţă electrică de încălzire

Publications (3)

Publication Number Publication Date
EP2034797A2 EP2034797A2 (fr) 2009-03-11
EP2034797A3 EP2034797A3 (fr) 2012-06-27
EP2034797B1 true EP2034797B1 (fr) 2015-05-06

Family

ID=40220030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080163921 Not-in-force EP2034797B1 (fr) 2007-09-10 2008-09-09 Ensemble de chauffage à résistance électrique

Country Status (6)

Country Link
EP (1) EP2034797B1 (fr)
CN (1) CN101389162A (fr)
ES (1) ES2549118T3 (fr)
HU (1) HUE027049T2 (fr)
PL (1) PL2034797T3 (fr)
RO (1) RO123467B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1398179B1 (it) 2010-01-26 2013-02-14 Mottola Sistema radiante per trasferimento e accumulo del calore medianti elementi ottenuti dal reciclo di inerti.
CN102446605B (zh) * 2010-10-11 2013-09-11 上海克拉电子有限公司 一种扁平铝合金外壳电阻器
CN104039030B (zh) * 2014-06-04 2017-02-08 中山市德信道行五金电器有限公司 一种发热圈
DE202018101634U1 (de) 2018-03-23 2018-04-03 Türk & Hillinger GmbH Vorrichtung zur Umwandlung von elektrischer Energie in Wärme und elektrische Heizvorrichtung mit einer solchen Vorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO81149B1 (ro) * 1982-04-02 1984-01-30 Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Electrotehnica REZISTENTA ELECTRICA DE îNCALZIRE DE TEMPERATURI MEDII
RO85804B1 (ro) * 1983-11-04 1984-11-30 Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Electrotehnica REZISTENTA ELECTRICA DE îNCALZIRE DE TEMPERATURI MEDII SI PROCEDEU DE REALIZARE A EI

Also Published As

Publication number Publication date
ES2549118T3 (es) 2015-10-23
RO123467B1 (ro) 2012-07-30
EP2034797A3 (fr) 2012-06-27
HUE027049T2 (hu) 2016-08-29
CN101389162A (zh) 2009-03-18
PL2034797T3 (pl) 2015-10-30
EP2034797A2 (fr) 2009-03-11

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