DE857559C - Iron core embedded in cast resin or the like - Google Patents

Iron core embedded in cast resin or the like

Info

Publication number
DE857559C
DE857559C DES21084A DES0021084A DE857559C DE 857559 C DE857559 C DE 857559C DE S21084 A DES21084 A DE S21084A DE S0021084 A DES0021084 A DE S0021084A DE 857559 C DE857559 C DE 857559C
Authority
DE
Germany
Prior art keywords
iron core
cast resin
core embedded
plastic foam
elastic plastic
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
DES21084A
Other languages
German (de)
Inventor
Hans Dipl-Ing Dr Edler
Wilhelm Dipl-Ing Gebhardt
Georg Stauber
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 DES21084A priority Critical patent/DE857559C/en
Application granted granted Critical
Publication of DE857559C publication Critical patent/DE857559C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Insulating Of Coils (AREA)

Description

Wird beispielsweise bei Meßwandlern ein aus hochwertigem Eisen bestehender Eisenkern zusammen mit der Wicklung in erhärtendes Gießharz od..dgl. eingegossen, dann gehen meist die guten Eigenschaften des Eisenkerns verloren, weil das Gießharz beim Erhärten schrumpft und dadurch den Kern mechanisch beansprucht.If, for example, a transducer is made of high quality iron Iron core together with the winding in hardening resin or the like. poured, then the good properties of the iron core are usually lost because the casting resin shrinks as it hardens, thereby stressing the core mechanically.

Die Erfindung beseitigt diesen . Mangel. Erfindungsgemäß ist der Eisenkern mit einer Hülle aus elastischem Kunststoffschaum, vorzugsweise so feiner Bläschenstruktur umgeben, daß sich die Bläschen dielektrisch nicht störend bemerkbar machen.The invention eliminates this. Defect. The iron core is according to the invention with a cover made of elastic plastic foam, preferably such a fine bubble structure surround that the bubbles do not make dielectrically disturbing noticeable.

Die Erfindung wird an Hand des in der Zeichnung dargestellten Beispiels näher erläutert.The invention is based on the example shown in the drawing explained in more detail.

Der Eisenkern r ist mit einem Band 2 aus elastischem Kunststoffschaum umwickelt. 3 ist die Sekundärwicklung des i,n der Zeichnung dargestellten Einleiterwandlers. Das Ganze ist in Gießharz eingegossen, das einen die Wicklung und den Eisenkern umschließenden Isolierkörper 4 bildet. Durch einen Mittelkanal 5 dieses Körpers ist ein Primärkörper 6 hindurchgeführt.The iron core r is attached to a band 2 made of elastic plastic foam wrapped around. 3 is the secondary winding of the single-phase converter shown in the drawing. The whole thing is cast in resin, one is the winding and the iron core enclosing insulating body 4 forms. Through a central channel 5 of this body a primary body 6 is passed through.

Claims (2)

PATENTANSPRÜCHE: i. In Gießharz od. dgl. eingebetteter Eisenkern, dadurch gekennzeichnet, daß der Eisenkern (i) eine Hülle (2) aus elastischem Kunststoffschaum, vorzugsweise so feiner Bläschenstruktur hat, daß die Bläschc n sich dielektrisch nicht störend bemerkbar machen. PATENT CLAIMS: i. Iron core embedded in cast resin or the like, characterized in that the iron core (i) has a shell (2) made of elastic plastic foam, preferably has such a fine bubble structure that the bubbles are dielectric not noticeable in a disturbing way. 2. Eisenkern nach Anspruch i, dadurch gekennzeichnet, daß der Eisenkern (i) mit einem Band aus elastischem Kunststoffschaum umwickelt ist.2. iron core according to claim i, characterized in that that the iron core (i) is wrapped with a band of elastic plastic foam is.
DES21084A 1950-12-01 1950-12-01 Iron core embedded in cast resin or the like Expired DE857559C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES21084A DE857559C (en) 1950-12-01 1950-12-01 Iron core embedded in cast resin or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES21084A DE857559C (en) 1950-12-01 1950-12-01 Iron core embedded in cast resin or the like

Publications (1)

Publication Number Publication Date
DE857559C true DE857559C (en) 1952-12-01

Family

ID=7476309

Family Applications (1)

Application Number Title Priority Date Filing Date
DES21084A Expired DE857559C (en) 1950-12-01 1950-12-01 Iron core embedded in cast resin or the like

Country Status (1)

Country Link
DE (1) DE857559C (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1032576B (en) * 1955-08-13 1958-06-19 Jenaer Glaswerk Schott & Gen Viscometers, especially capillary viscometers
DE1055146B (en) * 1953-10-31 1959-04-16 Vacuumschmelze Ag Process for protecting objects made of magnetizable materials against mechanical deformation
DE1093476B (en) * 1956-01-07 1960-11-24 Hans Ritz Dr Ing Bushing, rail or cable conversion current transformers
DE1130024B (en) * 1957-11-15 1962-05-24 Siemens Ag Attachment of metal fittings to ceramic insulators
DE1182366B (en) * 1956-02-04 1964-11-26 Siemens Ag An electrical device with a magnetic core and coil windings embedded in a hardening mass
DE1240262B (en) * 1959-06-30 1967-05-11 Licentia Gmbh Protective cover for objects to be embedded in cast resin
DE1279157B (en) * 1959-09-17 1968-10-03 Ncr Co Electrical component with embedded sensitive components
DE1283356B (en) * 1964-12-03 1968-11-21 Licentia Gmbh Method for wedging the winding support bodies on the core legs of transformers, converters and reactors
EP0137867A1 (en) * 1983-10-17 1985-04-24 Wilhelm Sedlbauer GmbH Fixing device for wound toroidal cores

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055146B (en) * 1953-10-31 1959-04-16 Vacuumschmelze Ag Process for protecting objects made of magnetizable materials against mechanical deformation
DE1032576B (en) * 1955-08-13 1958-06-19 Jenaer Glaswerk Schott & Gen Viscometers, especially capillary viscometers
DE1093476B (en) * 1956-01-07 1960-11-24 Hans Ritz Dr Ing Bushing, rail or cable conversion current transformers
DE1182366B (en) * 1956-02-04 1964-11-26 Siemens Ag An electrical device with a magnetic core and coil windings embedded in a hardening mass
DE1130024B (en) * 1957-11-15 1962-05-24 Siemens Ag Attachment of metal fittings to ceramic insulators
DE1240262B (en) * 1959-06-30 1967-05-11 Licentia Gmbh Protective cover for objects to be embedded in cast resin
DE1279157B (en) * 1959-09-17 1968-10-03 Ncr Co Electrical component with embedded sensitive components
DE1283356B (en) * 1964-12-03 1968-11-21 Licentia Gmbh Method for wedging the winding support bodies on the core legs of transformers, converters and reactors
EP0137867A1 (en) * 1983-10-17 1985-04-24 Wilhelm Sedlbauer GmbH Fixing device for wound toroidal cores

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