DE873880C - Electric heating cable - Google Patents

Electric heating cable

Info

Publication number
DE873880C
DE873880C DES22157A DES0022157A DE873880C DE 873880 C DE873880 C DE 873880C DE S22157 A DES22157 A DE S22157A DE S0022157 A DES0022157 A DE S0022157A DE 873880 C DE873880 C DE 873880C
Authority
DE
Germany
Prior art keywords
heating cable
metallic protective
electric heating
protective jacket
heat
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
Application number
DES22157A
Other languages
German (de)
Inventor
Heinrich Gburek
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DES22157A priority Critical patent/DE873880C/en
Application granted granted Critical
Publication of DE873880C publication Critical patent/DE873880C/en
Expired legal-status Critical Current

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
    • H05B3/40—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
    • H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
    • 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
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables

Landscapes

  • Resistance Heating (AREA)

Description

Es sind elektr-ische Kabel bekannt, bei denen der Leiter aus einem Widerstandsdraht besteht, welcher mit einer wärmebeständigen Isoliewngversehen ist. Auf :diese Isolierung ist -eine metallische Schutzhülle aufgebracht, welche beispielsweise ein Blei-,oder Aluminiummantel sein kann. Derartige Kabel können so,- :hoch °belastet wenden, da.ß sie beim Stromdurchgang :warm werden; sie finden daher als Heizkörper bzw: Heizkabel Verwendung, und zwar Überall dort, wo der Einbauanderer elektrischer Heizkörper mit Schwierigkeiten verbunden ist. Bei diesen: bekannten Heizkabieln war jedoch die metallische Schutzhülle' wie bei normalen Kabeln. glatt aufgebracht, so :daß sie Beine Zylinderform aufwies, wodurch die Oberfläche verhältnismäßig klein und dementsprechend die Wärmeabgabe sehr schlecht War.There are electrical cables known in which the conductor consists of a Resistance wire is made, which is provided with a heat-resistant insulation. On: this insulation is applied a metallic protective cover, which for example can be a lead or aluminum jacket. Such cables can be -: highly loaded turn so that when the current passes through, they: get warm; therefore find them as radiators or: Use of heating cables, namely wherever the installation of other electrical Radiator is fraught with difficulties. With these: well-known Heizkabieln However, the metallic protective sheath was like normal cables. applied smoothly, so: that it had legs in the shape of a cylinder, making the surface area relatively small and accordingly the heat output was very poor.

Gemäß der Erfindung wird. dieser Nachteil dadurch ver ieden.,,daß der metäl:lischreSchutzmantel"desHei:zkahels leine die Wärmeaustauschfläche vergrölBernde Form aufweist, das beispielsweise durch Anbringen von Rippen, Kanten od. dgl. erfolgen kann. Vorteilhafterweise kann auch !der Querschnitt des metallischen Schutzmantels in Form eines Dreiecks, eines Quadmats, Vielecks, Sterns io,d..dgl. ausgebildet siein. Die Fxfindüng ist nicht auf die genannten Formen beschränkt, sondern t !alle Ausbildungen, welche eine Vergrößerung der Kabüloberläche bringen. 1n -den Fij. i bis 5 sind Ausführungsbeispicle eines Heizkabels ;gemäß :der Erfindung schematisch im Querschnitt !dargestellt.According to the invention. this disadvantage is avoided. ,, that the metal: lischre protective jacket "desHei: zkahels leine enlarges the heat exchange surface Has shape, for example by attaching ribs, edges or the like can. Advantageously, the cross section of the metallic protective jacket in the form of a triangle, a square, polygon, star io, d..dgl. educated you in. Finding is not restricted to the forms mentioned, but rather all of them Training that brings an increase in the cabin area. 1n -den Fij. 1 to 5 are exemplary embodiments of a heating cable, according to: the invention schematically shown in cross section!

Der Heizleiter i ist mit einer wärmebeständigen Isolierung z !umgeben, auf welche ein metallischer Schutzmantel 3 mit quadratischem Querschnitt , aufgebracht ist.The heating conductor i is surrounded by a heat-resistant insulation z! on which a metallic protective jacket 3 with a square cross-section is applied is.

Fig. z zeigt seinen metallischen Schutzmantel; der einen Querschnitt aufweist, welcher lein vorn Kreisbögen gebildetes Viereck darstellt. Die Fig.3 bis 5 zeigen eine -Ausbildung finit sternförmigem Querschnitt des metallischen Schutzmantels, wodurch Rippen gebildet werden, welche den Wärmeaustausch besonders begünstigen.Fig. Z shows its metallic protective sheath; the one cross section has, which represents a square formed in front of circular arcs. The Fig. 3 to 5 show a configuration with a finite star-shaped cross section of the metallic protective jacket, whereby ribs are formed, which particularly favor heat exchange.

Claims (2)

PATENTANSPRÜCHE: i. Elektrisches Heizkabel; bei dem der Heizleiter xniteiner wärmebeständigen Isolierung und einem metallischen Schutzmantel versehen ist, dadurch gekennzeichnet; daß der metallische Schutzmantel seine !die Wärmeaustauschfiäche vergrößernde Farin, z. B. Rippen, Kanten iad. dgl., aufweist. , PATENT CLAIMS: i. Electric heating cable; where the heating conductor xnit a heat-resistant insulation and a metallic protective jacket is characterized; that the metallic protective jacket is its heat exchange surface magnifying farin, e.g. B. ribs, edges iad. Like., Has. , 2. Elektrisches Heizkabel nach Anspruch i, dadurch gekennzeichnet, daß !der Durchmesser des metallischen Schutzmantels in Form eines Dreiecks; Quadrats, Vielecks, Sterns @od. dgl. ausgebildet ist.2. Electrical Heating cable according to claim i, characterized in that! The diameter of the metallic Protective sheath in the shape of a triangle; Squares, polygons, stars @od. Like. Trained is.
DES22157A 1951-03-04 1951-03-04 Electric heating cable Expired DE873880C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES22157A DE873880C (en) 1951-03-04 1951-03-04 Electric heating cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES22157A DE873880C (en) 1951-03-04 1951-03-04 Electric heating cable

Publications (1)

Publication Number Publication Date
DE873880C true DE873880C (en) 1953-04-20

Family

ID=7476800

Family Applications (1)

Application Number Title Priority Date Filing Date
DES22157A Expired DE873880C (en) 1951-03-04 1951-03-04 Electric heating cable

Country Status (1)

Country Link
DE (1) DE873880C (en)

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