EP0448974A1 - Bobine pour un transformateur - Google Patents

Bobine pour un transformateur Download PDF

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Publication number
EP0448974A1
EP0448974A1 EP91102854A EP91102854A EP0448974A1 EP 0448974 A1 EP0448974 A1 EP 0448974A1 EP 91102854 A EP91102854 A EP 91102854A EP 91102854 A EP91102854 A EP 91102854A EP 0448974 A1 EP0448974 A1 EP 0448974A1
Authority
EP
European Patent Office
Prior art keywords
coil
winding
layer
transformer
former
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.)
Withdrawn
Application number
EP91102854A
Other languages
German (de)
English (en)
Inventor
Helmut Kerber
Manfred Abel
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
Publication of EP0448974A1 publication Critical patent/EP0448974A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers

Definitions

  • the invention relates to a coil with a winding and a coil body, in particular for a microwave transformer.
  • the invention has for its object to be able to manufacture the coil more cost-effectively.
  • the guiding forms ensure that the innermost layer of turns can be wound onto the bobbin in a defined manner. This is necessary to precisely define the position of the transfer point at which the direction of rotation changes.
  • the coil according to Figures 1 and 2 consists of a coil body 1 and a winding 2.
  • the coil body has a central opening 3 for receiving a magnetic core, not shown, of a transformer.
  • Such magnetic cores consist of thin ferrite sheets stacked on top of one another, which have a central and two outer legs.
  • the opening 3 serves z. B. to accommodate the middle leg.
  • the winding is designed as a layer winding. This means that the winding direction changes after each layer, so that the turns in the individual layers have the same pitch and are placed in the grooves of the layers below. As a result, the winding space can be reduced so that the side legs of the ferrite sheets can be arranged closer together. This enables the magnetic core to be downsized and expensive ferrite material to be saved. However, it is also possible to increase the number of layers of the winding 2 and to reduce the cross section of the magnetic core.
  • the coil former 1 is designed as a thin-walled rectangular tube which has two flanges 4 on its end faces. According to FIGS. 3 and 4, guide shapes 6 in the manner of wavy notches 7 are formed along the longitudinal edges 5 of the rectangular tube. Their pitch corresponds to the diameter of a coil wire 8 of the winding 2 and is guided with its innermost position in the notches 7. This ensures that the position of the last turn on the coil body and thus the deflection point of the coil wire 8 are precisely defined. This exact determination of the deflection point is a prerequisite for the fact that the next layer of the coil wire 8 can be moved exactly into the grooves of the layer below.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP91102854A 1990-03-28 1991-02-26 Bobine pour un transformateur Withdrawn EP0448974A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9003622U DE9003622U1 (fr) 1990-03-28 1990-03-28
DE9003622U 1990-03-28

Publications (1)

Publication Number Publication Date
EP0448974A1 true EP0448974A1 (fr) 1991-10-02

Family

ID=6852422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102854A Withdrawn EP0448974A1 (fr) 1990-03-28 1991-02-26 Bobine pour un transformateur

Country Status (2)

Country Link
EP (1) EP0448974A1 (fr)
DE (1) DE9003622U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004097864A2 (fr) * 2003-04-29 2004-11-11 Inventive Holdings Llc Dispositif a enroulement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146168A1 (de) * 1981-11-21 1983-06-23 Neosid Pemetzrieder Gmbh & Co Kg, 5884 Halver Induktives bauelement, insbesondere spule fuer hohe und sehr hohe frequenzen sowie verfahren zur herstellung eines solchen bauelementes
US4808959A (en) * 1988-03-31 1989-02-28 Magnatek Universal Manufacturing Electrical coil with tap transferring to end-layer position

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146168A1 (de) * 1981-11-21 1983-06-23 Neosid Pemetzrieder Gmbh & Co Kg, 5884 Halver Induktives bauelement, insbesondere spule fuer hohe und sehr hohe frequenzen sowie verfahren zur herstellung eines solchen bauelementes
US4808959A (en) * 1988-03-31 1989-02-28 Magnatek Universal Manufacturing Electrical coil with tap transferring to end-layer position

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004097864A2 (fr) * 2003-04-29 2004-11-11 Inventive Holdings Llc Dispositif a enroulement
WO2004097864A3 (fr) * 2003-04-29 2005-06-23 Inventive Holdings Llc Dispositif a enroulement

Also Published As

Publication number Publication date
DE9003622U1 (fr) 1990-06-07

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