CH110708A - Method of manufacturing electric radiators. - Google Patents

Method of manufacturing electric radiators.

Info

Publication number
CH110708A
CH110708A CH110708DA CH110708A CH 110708 A CH110708 A CH 110708A CH 110708D A CH110708D A CH 110708DA CH 110708 A CH110708 A CH 110708A
Authority
CH
Switzerland
Prior art keywords
manufacturing electric
electric radiators
radiators
grooves
hollow body
Prior art date
Application number
Other languages
German (de)
Inventor
Elektrobeheizung G M B H
Original Assignee
Elektrobeheizung G M B H
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 Elektrobeheizung G M B H filed Critical Elektrobeheizung G M B H
Publication of CH110708A publication Critical patent/CH110708A/en

Links

Description

  

  Verfahren zur Herstellung     elektrischer    Heizkörper.    Bei     keramischen    Heizkörpern werden die  Heizdrähte     unter    hohem Druck in die elek  trische     Isolationsmasse        eingepresst.    Dieses  Verfahren ist bei Heizkörpern in der Form  von Hohlkörpern, wie Röhren und dergleichen  nicht möglich, da die gegenüber denn     Gesamt-          volumen    kleinen     Einfüllöffrrungen    dieses nicht  zulassen.

   Man hat bereits vorgeschlagen,     Heiz-          widerstände    in Hohlkörpern dadurch herzu  stellen, dass die um den Heizdraht herum  eingeführte lose Isolationsmasse durch Unter  werfen des     ganzen    Widerstandskörpers einem       Zugprozess    unter     Querschnittsverringerung    des  Ganzen und Längenausdehnung zusammen  gedrückt wurde, wobei jedoch die wärme  abgebende Oberfläche     kleiner    wurde und     rnan     niemals vorher genau die endgültige Länge  des     Heizwiderstandes    bestimmen konnte.  



  Gemäss der     Erfin.lung    soll dieser Mangel  dadurch behoben werden, dass eine in einem  Hohlkörper den Heizleiter umgebende lose       Isolationsmasse    durch Eindrücken von Nuten  vorn aussen nach innen zusammengedrückt  wird.    In der beiliegenden Zeichnung ist ein  nach dem Verfahren hergestellter Heizkörper  in den     Fig.    1 und 2 dargestellt und zwar  zeigt       Fig.    1 den Heizkörper vor der Druck  behandlung, und       Fig.    2 den gleichen Körper nach der  Druckbehandlung.  



  Der Heizleiter a liegt in dem     Isolations-          rnaterial    b eingebettet im Zentrum des Hohl  körpers c. Wie aus der     Fig.    2 ersichtlich,  ist in den Hohlkörper     c    eine beliebige Anzahl  von Rillen oder Nuten von aussen nach innen  z. B. eingedrückt oder eingewalzt, wodurch  der Querschnitt des Gesamtwiderstandes zwar  verringert und die keramische Isolationsmasse  zusammengedrückt wird, wobei jedoch die  wärmeabgebende Oberfläche des Hohlkörpers  die gleiche ist und auch die Länge des  Heizwiderstandes unverändert bleibt. Die  Form der z. B.     eingepressten    oder einge  walzten Rillen. oder Nuten ist eine be  liebige.



  Method of manufacturing electric radiators. In ceramic radiators, the heating wires are pressed into the electrical insulation compound under high pressure. This method is not possible with radiators in the form of hollow bodies, such as tubes and the like, since the filling openings, which are small compared to the total volume, do not allow this.

   It has already been proposed to manufacture heating resistors in hollow bodies by compressing the loose insulation mass introduced around the heating wire by subjecting the entire resistance body to a tensile process, reducing the cross section of the whole and expanding its length, but the heat-emitting surface became smaller and rnan could never exactly determine the final length of the heating resistor beforehand.



  According to the invention, this deficiency is to be remedied by compressing a loose insulation compound which surrounds the heating conductor in a hollow body by pressing grooves inwards at the front outside. In the accompanying drawing, a heater manufactured by the method is shown in FIGS. 1 and 2, namely Fig. 1 shows the heater before the pressure treatment, and Fig. 2 shows the same body after the pressure treatment.



  The heating conductor a is embedded in the insulation material b in the center of the hollow body c. As can be seen from Fig. 2, any number of grooves or grooves from the outside to the inside z in the hollow body c. B. pressed or rolled, whereby the cross-section of the total resistance is reduced and the ceramic insulation is compressed, but the heat-emitting surface of the hollow body is the same and the length of the heating resistor remains unchanged. The shape of the z. B. pressed or rolled grooves. or grooves is arbitrary.

 

Claims (1)

PATENTANSPRUCH: Zierfahren zur Herstellung elektrischer Heizkörper mit in keramische Isolationsmasse eingebetteten Widerständen, dadurch gekenn zeichnet, dass eine in einem Hohlkörper den Heizleiter umgebende lose Isolationsmasse durch Eindrücken von Nuten von aussen nach innen zusammengedrückt wird. PATENT CLAIM: Decorative process for the production of electrical heating elements with resistors embedded in ceramic insulation material, characterized in that a loose insulation material surrounding the heating conductor in a hollow body is compressed by pressing grooves from the outside inwards.
CH110708D 1923-07-13 1924-07-11 Method of manufacturing electric radiators. CH110708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE110708X 1923-07-13

Publications (1)

Publication Number Publication Date
CH110708A true CH110708A (en) 1925-07-01

Family

ID=5652239

Family Applications (1)

Application Number Title Priority Date Filing Date
CH110708D CH110708A (en) 1923-07-13 1924-07-11 Method of manufacturing electric radiators.

Country Status (1)

Country Link
CH (1) CH110708A (en)

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