EP0010275A1 - Elément chauffant tubulaire - Google Patents

Elément chauffant tubulaire Download PDF

Info

Publication number
EP0010275A1
EP0010275A1 EP79103944A EP79103944A EP0010275A1 EP 0010275 A1 EP0010275 A1 EP 0010275A1 EP 79103944 A EP79103944 A EP 79103944A EP 79103944 A EP79103944 A EP 79103944A EP 0010275 A1 EP0010275 A1 EP 0010275A1
Authority
EP
European Patent Office
Prior art keywords
insulating
bead
heating element
tubular
insulating material
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.)
Granted
Application number
EP79103944A
Other languages
German (de)
English (en)
Other versions
EP0010275B1 (fr
Inventor
Uwe Neumann
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.)
ELPAG AG CHUR
Original Assignee
ELPAG AG CHUR
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=6052145&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0010275(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ELPAG AG CHUR filed Critical ELPAG AG CHUR
Priority to AT79103944T priority Critical patent/ATE82T1/de
Publication of EP0010275A1 publication Critical patent/EP0010275A1/fr
Application granted granted Critical
Publication of EP0010275B1 publication Critical patent/EP0010275B1/fr
Expired 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
    • 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

Definitions

  • the invention relates to a tubular heater, in which a heating coil is embedded in insulating material in a jacket tube made of deformable metal, which is connected at the connection ends to connection bolts and in which the connection bolts are passed through insulating beads inserted into the ends of the jacket tube.
  • a tubular heating element of the type mentioned at the outset is known, in which the insulating beads are glued into the inner wall of the tubular casing end by means of an adhesive. In this way it is prevented that moisture can get inside the tubular heating element and the insulating effect of the insulating material is reduced.
  • this known tubular heating element has the disadvantage that, due to the use of an adhesive, there is only a limited temperature resistance of the tubular heating element.
  • a tubular heater end seal is also known, in which the seal is made by means of a temperature-resistant glaze. With such a glaze seal, however, there is a risk that it will tear as a result of large temperature fluctuations and consequently an un sufficient sealing against moisture.
  • the insulation effect can be reduced by a residual moisture remaining in the interior of the tubular heating element during manufacture, since the residual moisture cannot escape from the tubular heating element due to the moisture-tight seal.
  • the object is achieved according to the invention by the combination of a mechanical holder provided for the insulating bead, which is formed by the tubular heating element itself, and an insulating material impregnated with a silicone oil or the like in a manner known per se.
  • a further advantageous embodiment of the invention can be seen in the fact that the mechanical holder is formed by pinching or constricting the casing tube.
  • the tubular heating element on the one hand, has a very high temperature resistance of about 600 ° C due to the mechanical holder and, on the other hand, is no longer exposed to any impairment of its insulation effect by moisture.
  • the production is extremely easy to carry out, since it is no longer necessary to glue or pour in an end seal.
  • an electric tubular heater has a jacket tube 1, in which there is a heating coil 3 embedded in insulating material 2 soaked in silicone oil.
  • a connecting pin 4 is provided, which can be connected to an electrical power source, not shown.
  • the connecting bolt 4 also has a part with a larger diameter and a part with a smaller diameter.
  • the bolt part with a larger diameter is embedded in the insulating material 2 and electrically connected to the heating coil 3, while the subsequent bolt part with a small diameter runs a bit in the casing tube 1 and then protrudes from the tubular heating element for connection to a power source.
  • the Gerschn ⁇ ttsprung of the connecting bolt 4 is thus in one plane with the insulating material.
  • an insulating bead 5 with a corresponding through hole is pushed in part over the small-diameter bolt part until the cross-sectional jump of the connecting bolt 4.
  • the graduated insulating bead 5 has approximately the same outer diameter as that on the side facing the insulating material 2 Insulation material.
  • a locking ring 6 is pushed onto the connecting pin 4 following the insulating bead.
  • the connecting bolt 4 is pressed off when the insulating bead 5 is firmly pushed on in the vicinity of the securing ring 6.
  • the locking ring 6 is pressed in the direction of the inside of the tubular heater and thus the insulating bead is pressed against the insulating material.
  • connection bolt 4 attains a certain strength with respect to the casing tube 1
  • the exemplary embodiment shown in FIG. 2 differs from the one mentioned above only in that a triangular bead 8 is used instead of a round bead 5.

Landscapes

  • Resistance Heating (AREA)
EP79103944A 1978-10-13 1979-10-12 Elément chauffant tubulaire Expired EP0010275B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103944T ATE82T1 (de) 1978-10-13 1979-10-12 Rohrheizkoerper.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2844714 1978-10-13
DE19782844714 DE2844714A1 (de) 1978-10-13 1978-10-13 Endenabdichtung fuer einen elektrischen rohrheizkoerper

Publications (2)

Publication Number Publication Date
EP0010275A1 true EP0010275A1 (fr) 1980-04-30
EP0010275B1 EP0010275B1 (fr) 1981-06-10

Family

ID=6052145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103944A Expired EP0010275B1 (fr) 1978-10-13 1979-10-12 Elément chauffant tubulaire

Country Status (3)

Country Link
EP (1) EP0010275B1 (fr)
AT (1) ATE82T1 (fr)
DE (2) DE7830574U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086465A1 (fr) * 1982-02-12 1983-08-24 Elpag Ag Chur Corps de chauffe tubulaire muni d'un coupe-circuit de surcharge
EP0157182A1 (fr) * 1984-03-01 1985-10-09 Elpag Ag Chur Corps de chauffe tubulaire
EP0858084A1 (fr) * 1997-02-07 1998-08-12 I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini Procédé de fabrication d'éléments de résistance armés et élément de résistance obtenu par ce procédé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8910145U1 (fr) * 1989-08-24 1989-10-05 Fritz Eichenauer Gmbh & Co. Kg Fabrik Elektr. Spezialartikel, 6744 Kandel, De

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046102A (en) * 1931-07-30 1936-06-30 Gen Electric Electric terminal connection
FR803095A (fr) * 1935-09-20 1936-09-22 Perfectionnements aux appareils électrothermiques
DE1615424A1 (de) * 1967-12-19 1970-06-04 Siemens Elektrogeraete Gmbh Elektrischer Rohrheizkoerper
DE2410451A1 (de) * 1974-03-05 1975-09-11 Eichenauer Fa Fritz Feuchtigkeitsdichter abschluss fuer elektrische rohrheizkoerper
DE2531529A1 (de) * 1975-07-15 1977-02-24 Stiebel Eltron Gmbh & Co Kg Elektrischer rohrheizkoerper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046102A (en) * 1931-07-30 1936-06-30 Gen Electric Electric terminal connection
FR803095A (fr) * 1935-09-20 1936-09-22 Perfectionnements aux appareils électrothermiques
DE1615424A1 (de) * 1967-12-19 1970-06-04 Siemens Elektrogeraete Gmbh Elektrischer Rohrheizkoerper
DE2410451A1 (de) * 1974-03-05 1975-09-11 Eichenauer Fa Fritz Feuchtigkeitsdichter abschluss fuer elektrische rohrheizkoerper
DE2531529A1 (de) * 1975-07-15 1977-02-24 Stiebel Eltron Gmbh & Co Kg Elektrischer rohrheizkoerper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086465A1 (fr) * 1982-02-12 1983-08-24 Elpag Ag Chur Corps de chauffe tubulaire muni d'un coupe-circuit de surcharge
EP0157182A1 (fr) * 1984-03-01 1985-10-09 Elpag Ag Chur Corps de chauffe tubulaire
EP0858084A1 (fr) * 1997-02-07 1998-08-12 I.R.C.A. S.p.a. Industria Resistenze Corazzate e Affini Procédé de fabrication d'éléments de résistance armés et élément de résistance obtenu par ce procédé

Also Published As

Publication number Publication date
DE2844714A1 (de) 1980-04-24
DE7830574U1 (de) 1983-07-28
EP0010275B1 (fr) 1981-06-10
ATE82T1 (de) 1981-06-15

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