AT106406B - Resistor made of double metal that responds to the effect of heat. - Google Patents

Resistor made of double metal that responds to the effect of heat.

Info

Publication number
AT106406B
AT106406B AT106406DA AT106406B AT 106406 B AT106406 B AT 106406B AT 106406D A AT106406D A AT 106406DA AT 106406 B AT106406 B AT 106406B
Authority
AT
Austria
Prior art keywords
heat
double metal
responds
effect
resistor made
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Schuckertwerke Gmbh
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 Schuckertwerke Gmbh filed Critical Siemens Schuckertwerke Gmbh
Application granted granted Critical
Publication of AT106406B publication Critical patent/AT106406B/en

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Position Input By Displaying (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Auf   Wärmewirkung   ansprechender Widerstand aus   Doppehnetall.   



   Zur Auslösung   von Schaltvorgängen   zur Kontaktgabe oder als Anzeigevorrichtung   u.   dgl. verwendet man vielfach auf   Wäl1l1ewirkung ansprechende   Widerstände in Form von Drähten oder Bändern, die bei der Erwärmung durch den elektrischen Strom ihre Form ändern. Insbesondere hat man Doppelmetall hiefür verwendet, wobei das eine Metall eine grössere   Ausdehnungsziffer   hat als das andere, so dass 
 EMI1.1 
 Ausschlag zu erhalten, muss man den Widerstandskörper im allgemeinen ziemlich lange machen. Da er auf seiner ganzen Länge vom Strom   durehflossen   wird, so ist sein Widerstand gross und damit wächst auch sein Eigenverbrauch. 



   Nach der Erfindung wird der Eigenverbrauch vermindert und doch ein   hinreichend     grosser   Aus-   sehlag   erzielt, indem nur ein Teil des Widerstandes als Strombahn benutzt und durch den Strom   unmittelbar   erwärmt wird, während die Wärme auf den andern Teil durch Leitung von dem geheizten Teil übertragen wird. 



   Auf der Zeichnung sind einige Ausführungsformen eines derartigen Widerstandes aus Doppelmetall schematisch dargestellt. Fig. 1 zeigt ein Band aus Doppelmetall, dessen Anschlussenden in gleicher Höhe liegen, Fig. 2 eine Anordnung mit Anschlüssen in verschiedenen Höhen, in Fig. 3 ist der Widerstand im 
 EMI1.2 
 sind in einigen Beispielen der Deutlichkeit halber verschieden stark gezeichnet. 



   1 ist ein Metall mit einer grossen   Ausdehnungsziffer,   beispielsweise Kupfer, und 2 ein Metall mit 
 EMI1.3 




   <Desc / Clms Page number 1>
 



  Resistance made of double metal that responds to the effect of heat.



   To trigger switching operations for making contact or as a display device u. The like. Resistors responding to the rolling effect are often used in the form of wires or strips, which change their shape when heated by the electric current. In particular, double metal has been used for this, with one metal having a larger expansion coefficient than the other, so that
 EMI1.1
 To get a rash, you generally have to make the resistor body quite long. Since the current flows through it over its entire length, its resistance is great and thus its own consumption also increases.



   According to the invention, self-consumption is reduced and a sufficiently large failure rate is achieved by using only part of the resistor as a current path and being directly heated by the current, while the heat is transferred to the other part by conduction from the heated part.



   Some embodiments of such a resistor made of double metal are shown schematically in the drawing. Fig. 1 shows a strip of double metal, the connection ends of which are at the same height, Fig. 2 shows an arrangement with connections at different heights, in Fig. 3 the resistance is in
 EMI1.2
 are drawn with different strengths in some examples for the sake of clarity.



   1 is a metal with a large expansion coefficient, for example copper, and 2 is a metal with
 EMI1.3


 

Claims (1)

PATENT-ANSPRUCH : Auf Wärmewirkung ansprechender Widerstand aus Doppelmetall, dadurch gekennzeichnet, dass nur ein Teil des Doppelmetalls als Strombahn benutzt und durch den Strom erwärmt wird, während die Wärme auf den andern Teil durch Leitung von dem geheizten Teil übertragen wird. EMI2.1 PATENT CLAIM: Resistor made of double metal which responds to the effect of heat, characterized in that only part of the double metal is used as a current path and is heated by the current, while the heat is transferred to the other part by conduction from the heated part. EMI2.1
AT106406D 1925-04-01 1926-03-18 Resistor made of double metal that responds to the effect of heat. AT106406B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE106406X 1925-04-01

Publications (1)

Publication Number Publication Date
AT106406B true AT106406B (en) 1927-05-10

Family

ID=5650658

Family Applications (1)

Application Number Title Priority Date Filing Date
AT106406D AT106406B (en) 1925-04-01 1926-03-18 Resistor made of double metal that responds to the effect of heat.

Country Status (1)

Country Link
AT (1) AT106406B (en)

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