EP1081986B1 - Elément chauffant tubulaire possédant une protection NTC/PTC - Google Patents

Elément chauffant tubulaire possédant une protection NTC/PTC Download PDF

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Publication number
EP1081986B1
EP1081986B1 EP00118875A EP00118875A EP1081986B1 EP 1081986 B1 EP1081986 B1 EP 1081986B1 EP 00118875 A EP00118875 A EP 00118875A EP 00118875 A EP00118875 A EP 00118875A EP 1081986 B1 EP1081986 B1 EP 1081986B1
Authority
EP
European Patent Office
Prior art keywords
heating element
casing tube
heating
tubular
sleeve
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.)
Expired - Lifetime
Application number
EP00118875A
Other languages
German (de)
English (en)
Other versions
EP1081986A3 (fr
EP1081986A2 (fr
Inventor
Gerald Muckenschnabel
Georg Stadler
Gerold Zinner
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.)
Bleckmann GmbH and Co KG
Original Assignee
Bleckmann GmbH and Co KG
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 Bleckmann GmbH and Co KG filed Critical Bleckmann GmbH and Co KG
Publication of EP1081986A2 publication Critical patent/EP1081986A2/fr
Publication of EP1081986A3 publication Critical patent/EP1081986A3/fr
Application granted granted Critical
Publication of EP1081986B1 publication Critical patent/EP1081986B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0275—Heating of spaces, e.g. rooms, wardrobes
    • H05B1/0283—For heating of fluids, e.g. water heaters
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating 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
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters
    • 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
    • H05B2203/019—Heaters using heating elements having a negative temperature coefficient
    • 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
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient
    • 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
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • the vat Due to the need to use both the tubular heater and various Temperature monitoring elements inside the tub of the washing machine the vat has a number of openings. Apart from the associated increased manufacturing costs these breakthroughs are well sealed, which in turn increases the cost the washing machine increased. In addition, by attaching the Temperature monitoring elements require additional assembly effort.
  • a Heating element in the form of a heating wire coil 14, which consists of a Current flow heating resistance wire material is made.
  • the heating wire coil 14 is in an electrically insulating but thermally conductive material 16 embedded, such as magnesium oxide. This insulating material 16 is preferably before the tubular heater 10 is fully assembled compacted.
  • the filament 14 is at both ends 14a with a connecting element in Form of a connecting pin 18 electrically and thermally connected.
  • the Terminal bolt 18 has a first section 18a that leads to the filament 14 points and the conically tapering in the direction of the filament 14 Tip is formed.
  • the largest diameter of this first section 18a corresponds essentially to the inside diameter of the heating wire coil 14.
  • the NTC element 28b which is designed in the form of a ball or a pill, and possibly already can be covered with an electrical insulation layer is over two separate connecting lines 28d with a fuse and not shown Monitoring or measuring circuit connected.
  • the two connecting lines 28d are from the end facing the heating wire coil 14 from the sleeve 28a led out and with corresponding further elements of the security and Monitoring circuit connected.
  • the fuse and monitoring circuit is formed separately from the heating circuit. It can be used as a resistance measuring circuit or be designed as a measuring circuit that detects the current drop or the voltage change across the NTC element 28b due to its change in resistance measures.

Landscapes

  • Resistance Heating (AREA)
  • Thermistors And Varistors (AREA)
  • Control Of Resistance Heating (AREA)
  • Fuses (AREA)

Claims (13)

  1. Elément chauffant tubulaire pour le chauffage de fluides, avec au moins un tube-enveloppe (12), avec au moins un élément chauffant (14) qui est noyé dans un matériau (16) électriquement isolant à l'intérieur du tube-enveloppe (12), avec des éléments de connexion (18) qui sont disposés dans l'extrémité (12a) du tube-enveloppe (12) et par l'intermédiaire desquels l'élément chauffant (14) est connecté à une source de courant électrique, et avec au moins un élément de protection (28b) qui est disposé à l'intérieur de l'extrémité (12a) du tube-enveloppe, est en contact de conduction de la chaleur avec l'élément chauffant (14) et est un élément dont la résistance électrique varie en fonction de la température de l'élément chauffant (14) faisant partie intégrante d'un circuit de mesure indépendant du circuit de chauffage, à l'aide duquel la variation de résistance de l'élément de protection (28) peut être mesurée,
    caractérisé par le fait que l'élément de protection (28b) est noyé à l'intérieur d'un matériau (28c) électriquement isolant, mais conducteur de la chaleur, à l'intérieur d'un manchon (28a), le manchon (28a) étant relié à un élément de connexion (18) par l'intermédiaire d'une pièce tubulaire (22).
  2. Elément chauffant tubulaire selon la revendication 1, caractérisé par le fait que l'enveloppe du manchon (28a) est en un matériau suffisamment bon conducteur de la chaleur.
  3. Elément chauffant tubulaire selon la revendication 1 ou 2, caractérisé par le fait que l'enveloppe du manchon (28a) fait partie de la connexion de l'élément chauffant à la source de courant de chauffage.
  4. Elément chauffant tubulaire selon une des revendications 1 à 3, caractérisé par le fait que l'élément de connexion est une tige de connexion (18) sur l'extrémité (18b) tournée vers l'extrémité de tube enveloppe (12a) de laquelle est emmanchée la pièce tubulaire (22), dans l'extrémité également tournée vers l'extrémité de tube enveloppe (12a) de laquelle est inséré le manchon (28a).
  5. Elément chauffant tubulaire pour le chauffage de fluides, avec au moins un tube-enveloppe (12), avec au moins un élément chauffant (14) qui est noyé dans un matériau (16) électriquement isolant à l'intérieur du tube-enveloppe (12), avec des éléments de connexion (18) qui sont disposés dans l'extrémité (12a) du tube-enveloppe (12) et par l'intermédiaire desquels l'élément chauffant (14) est connecté à une source de courant électrique, et avec au moins un élément de protection (28b) qui est disposé à l'intérieur de l'extrémité (12a) du tube-enveloppe, est en contact de conduction de la chaleur avec l'élément chauffant (14) et est un élément dont la résistance électrique varie en fonction de la température de l'élément chauffant (14), faisant partie intégrante d'un circuit de mesure indépendant du circuit de chauffage, à l'aide duquel la variation de résistance de l'élément de protection (28) peut être mesurée,
    caractérisé par le fait que l'élément de connexion (18) dans l'extrémité tournée vers l'extrémité (12a) frontale du tube-enveloppe (12) présente une cavité (18c) ouverte vers l'extérieur, dans laquelle l'élément de protection (28b) est logé en étant isolé électriquement mais en assurant la conduction de la chaleur avec l'élément de connexion (18).
  6. Elément chauffant tubulaire selon la revendication 5, caractérisé par le fait que l'élément de protection (28b) est monté dans la cavité (18c) de l'élément connexion (18) au moyen d'une masse moulée de résine (28c) électriquement isolante mais conductrice de la chaleur.
  7. Elément chauffant tubulaire selon la revendication 5, caractérisé par le fait que l'élément de protection (28b) est monté dans la cavité (18c) de l'élément connexion (18) au moyen d'un manchon (28c) électriquement isolant mais conducteur de la chaleur.
  8. Elément chauffant tubulaire selon une des revendications 5 à 7, caractérisé par le fait que l'élément de connexion est une tige de connexion (18).
  9. Elément chauffant tubulaire selon une des revendications 1 à 8, caractérisé par le fait que le circuit de mesure est un circuit de mesure de résistance.
  10. Elément chauffant tubulaire selon une des revendications 1 à 8, caractérisé par le fait que le circuit de mesure est un circuit de mesure de la chute de courant.
  11. Elément chauffant tubulaire selon une des revendications 1 à 8, caractérisé par le fait que le circuit de mesure est un circuit de mesure de la variation de tension.
  12. Elément chauffant tubulaire selon une des revendications 1 à 11, caractérisé par le fait que l'élément de protection est un élément à coefficient de température positif (CPT).
  13. Elément chauffant tubulaire selon une des revendications 1 à 11, caractérisé par le fait que l'élément de protection est un élément à coefficient de température négatif (CTN) (28b).
EP00118875A 1999-09-02 2000-08-31 Elément chauffant tubulaire possédant une protection NTC/PTC Expired - Lifetime EP1081986B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19941901A DE19941901A1 (de) 1999-09-02 1999-09-02 Rohrheizkörper mit NTC/PTC-Absicherung
DE19941901 1999-09-02

Publications (3)

Publication Number Publication Date
EP1081986A2 EP1081986A2 (fr) 2001-03-07
EP1081986A3 EP1081986A3 (fr) 2002-05-29
EP1081986B1 true EP1081986B1 (fr) 2004-09-01

Family

ID=7920589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118875A Expired - Lifetime EP1081986B1 (fr) 1999-09-02 2000-08-31 Elément chauffant tubulaire possédant une protection NTC/PTC

Country Status (4)

Country Link
EP (1) EP1081986B1 (fr)
AT (1) ATE275319T1 (fr)
DE (2) DE19941901A1 (fr)
ES (1) ES2226677T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937492C2 (de) 1999-08-07 2001-08-23 Mfh Hyperthermiesysteme Gmbh Magnetfeldapplikator zur Aufheizung von magnetischen oder magnetisierbaren Substanzen oder Festkörpern in biologischem Gewebe
DE10118922C1 (de) 2001-04-18 2003-04-30 Martin Hess Verfahren zur Sicherung und Regelung einer elektrischen, explosionsgeschützten Heizung und Vorrichtung zur Durchführung des Verfahrens
ITVI20030248A1 (it) * 2003-12-09 2005-06-10 Luigi Borelli Gruppo riscaldante per elementi radianti a fluido diatermico
ITVE20050024A1 (it) * 2005-04-15 2006-10-16 I R C A S P A Ind Resiste Nze Resistenza elettrica corazzata.
DE602006013658D1 (de) 2005-09-19 2010-05-27 Koninkl Philips Electronics Nv Vorrichtung zur herstellung eines getränks mit wasserkocher
DE102014221497A1 (de) * 2014-10-23 2016-04-28 Sandvik Materials Technology Deutschland Gmbh Vorrichtung und Verfahren zum Kühlen eines Fluids
CN105352186A (zh) * 2015-10-09 2016-02-24 芜湖恒美电热器具有限公司 一种加热器以及制造加热器的通电干烧搪瓷工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8423034U1 (de) * 1984-08-02 1985-01-03 Elpag Ag Chur, Chur Rohrheizkoerper
DE3843127C2 (de) * 1988-12-22 1995-04-20 Eltra Gmbh & Co Kg Leicht & Tr Heizkörper
DE4014753A1 (de) * 1990-05-08 1991-11-14 Elpag Ag Chur Rohrheizkoerper mit sicherung
DE4344341A1 (de) * 1993-12-23 1995-07-06 Elpag Ag Chur Rohrheizkörper mit Überlastsicherung und Temperaturfühler

Also Published As

Publication number Publication date
ES2226677T3 (es) 2005-04-01
EP1081986A3 (fr) 2002-05-29
EP1081986A2 (fr) 2001-03-07
DE50007598D1 (de) 2004-10-07
DE19941901A1 (de) 2001-03-29
ATE275319T1 (de) 2004-09-15

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