EP1385180A1 - Feuille isolante pliée et son utilisation - Google Patents

Feuille isolante pliée et son utilisation Download PDF

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Publication number
EP1385180A1
EP1385180A1 EP03012878A EP03012878A EP1385180A1 EP 1385180 A1 EP1385180 A1 EP 1385180A1 EP 03012878 A EP03012878 A EP 03012878A EP 03012878 A EP03012878 A EP 03012878A EP 1385180 A1 EP1385180 A1 EP 1385180A1
Authority
EP
European Patent Office
Prior art keywords
insulating film
objects
folded
transformer
winding
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Withdrawn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
EP03012878A
Other languages
German (de)
English (en)
Inventor
Frank Clasen
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.)
Block Transformatoren Elektronik GmbH
Original Assignee
Block Transformatoren Elektronik 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 Block Transformatoren Elektronik GmbH filed Critical Block Transformatoren Elektronik GmbH
Publication of EP1385180A1 publication Critical patent/EP1385180A1/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Withdrawn legal-status Critical Current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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures

Definitions

  • bobbins For the insulation of the input and output windings of a transformer with Single-chamber bobbins are made of single or multi-layer insulating foils. For compliance with the prescribed air and creepage distances between the There are different solutions for both windings. For example feathered insulating film used on the edge at regular intervals are slotted. This ensures that the insulating film on the edge Insert into the bobbin over the first winding of the transformer can bend the wall of the coil body upwards.
  • the object of the present invention is therefore to provide an insulating film create, with which specified air and creepage distances are reliably maintained can and the easy handling and installation in one device between the two objects to be isolated.
  • the invention lies also based on the task of a corresponding device in which this Foil is used, and to indicate the use of such an insulating film.
  • This task is based on the insulating film mentioned above solved that the overlap areas each over the entire perpendicular to the Folding direction extending width of the insulating film.
  • the invention is based on the knowledge that such Fold the insulating film in a central area above the first one to be insulated Object has more insulating material than would be required in principle that this material, however, in the marginal areas or corners and kinks has the fundamental advantage that it can fan out there. Thereby can also meet the required air and air pressure in such critical areas Creepage distances can be observed without additional handling steps or measures must be taken as with the known insulating films. In there are therefore no slits in the edge areas of the insulating film would have to be covered in some way. In addition, one can handle such insulating film easily and between those to be insulated Attach objects. Such an attachment can also be done in a simple manner done automatically.
  • the insulating film must of course be made of an electrically insulating Be made of material whose thickness is basically arbitrary.
  • the production of the insulating film from polyester is particularly simple.
  • the insulating film according to the invention can either be produced in a universal size and then toward appropriate use in a two device insulating objects can be cut, or it can be different wide insulating foils are manufactured and offered.
  • the Insulating film, as provided in the embodiment of the device according to claim 9 is, a width that extends over at least a crease area of one of the objects slightly extends, the width of the insulating film or the size of the beyond the buckling area according to the length of the air and creepage distances to be observed.
  • the insulating film according to the invention is preferably used in a device at least one of the objects to be insulated is a wire or Foil winding is, for example, compared to an electrically conductive Insulate the winding body.
  • a wire or Foil winding is, for example, compared to an electrically conductive Insulate the winding body.
  • the insulating film according to the invention can advantageously be used in a transformer a single-chamber or two-chamber bobbin or a coil become. Basically, however, the insulating film according to the invention is everywhere can be used where two objects, at least temporarily a different one Have voltage potential, must be electrically isolated from each other and where Clearances and creepage distances must be observed.
  • FIG. 2 An application of the feathered insulating film 1 in a transformer is shown in FIG. 2 shown.
  • the insulating film 1 serves to isolate a first one Transformer winding 5 on a bobbin 4 in the example shown is already wound up. Before a second transformer winding (not shown) is wound over it on the bobbin 4, the insulating film 1 over the first winding applied flat and the winding 5 completely covering.
  • the Insulating film 1 is deliberately wider than the distance between the two side walls 9 of the bobbin 4, so that the slotted edge areas 2 of the Insulating film 1 a little on the side walls 9 of the bobbin 4 upwards Bend.
  • the slots 3 have the advantage that in buckling areas 6 or corners 7, the insulating film 1 is placed tightly on the first transformer winding 5 can be, since the slots 3 pull apart.
  • FIG Fig. 3 An embodiment of a folded insulating film 10 according to the invention is shown in FIG Fig. 3 shown.
  • a side view of the folded insulating film 10 according to the invention is shown in Fig. 4.
  • the insulating film 10 has a zigzag fold, which in the example shown is designed such that the insulating film has three everywhere Has layers on top of each other, the folding at regular intervals is listed.
  • FIG. 6 shows a coil former 14 which, like the coil former 4 shown in FIG. 2 is designed to accommodate two windings of a single-chamber transformer.
  • the bobbin 14 has two side walls 15, which by means of a Cube-shaped center piece 16 are connected, via which the windings be applied.
  • Critical points for the isolation of the two Transformer windings against each other are the corners and kinks 17, 18 which particularly towards compliance with the specified air and creepage distances pay attention.
  • the inventive Insulating film 10 is placed centrally over the first transformer winding 19. Since the insulating film 10 is wider than the distance between the two side walls 15 of the bobbin 14 - the width of the insulating film 10 is preferably such chosen that they the distance between the two side walls 15 plus at least the corresponds to the required creepage distance - fold the edges 13 of the insulating film 10 the side walls 15 upwards.
  • the insulating film according to the invention thus ensures simple handling Compliance with specified air and creepage distances, even in critical areas.
  • the insulating film according to the invention is not only as shown Example, for single-chamber transformers to isolate the two Transformer windings can be used from one another, but wherever one first item, e.g. a wire winding, opposite a second object, e.g. a winding body that is to be electrically insulated. This is for example at Two-chamber transformers, coils or electric motors are the case.
  • the insulating film according to the invention does not necessarily have the zigzag shape shown Have a fold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Insulating Bodies (AREA)
EP03012878A 2002-07-23 2003-06-06 Feuille isolante pliée et son utilisation Withdrawn EP1385180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10233334 2002-07-23
DE10233334A DE10233334B3 (de) 2002-07-23 2002-07-23 Gefaltete Isolierfolie und deren Verwendung

Publications (1)

Publication Number Publication Date
EP1385180A1 true EP1385180A1 (fr) 2004-01-28

Family

ID=29796508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03012878A Withdrawn EP1385180A1 (fr) 2002-07-23 2003-06-06 Feuille isolante pliée et son utilisation

Country Status (2)

Country Link
EP (1) EP1385180A1 (fr)
DE (1) DE10233334B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017093096A1 (fr) * 2015-12-02 2017-06-08 Itacoil S.R.L. Bande isolante pour composants électriques

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH97956A (de) * 1921-09-09 1923-02-16 Oerlikon Maschf Verfahren zur Herstellung von Isolierkörpern für elektrische Vorrichtungen in Öl.
DE1258939B (de) * 1963-01-07 1968-01-18 Licentia Gmbh Isolierbahn zur Herstellung raeumlich verformbarer Isolierungen
DE3533037C1 (de) * 1985-09-17 1986-12-18 Robert 7321 Albershausen Schönfeld In die Lagerflüssigkeits-Zuleitung zur Lagertasche einer hydrostatischen Lagerung oder Führung einschaltbarer Regler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5838220A (en) * 1997-07-16 1998-11-17 Toroids International Hong Kong Ltd Toroidal transformer with space saving insulation and method for insulating a winding of a toroidal transformer
DE20002754U1 (de) * 2000-02-16 2000-04-20 Fagor, S. Coop, Mondragon, Guipuzcoa Isolierung eines Transformators für Mikrowellengeräte

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH97956A (de) * 1921-09-09 1923-02-16 Oerlikon Maschf Verfahren zur Herstellung von Isolierkörpern für elektrische Vorrichtungen in Öl.
DE1258939B (de) * 1963-01-07 1968-01-18 Licentia Gmbh Isolierbahn zur Herstellung raeumlich verformbarer Isolierungen
DE3533037C1 (de) * 1985-09-17 1986-12-18 Robert 7321 Albershausen Schönfeld In die Lagerflüssigkeits-Zuleitung zur Lagertasche einer hydrostatischen Lagerung oder Führung einschaltbarer Regler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017093096A1 (fr) * 2015-12-02 2017-06-08 Itacoil S.R.L. Bande isolante pour composants électriques

Also Published As

Publication number Publication date
DE10233334B3 (de) 2004-02-26

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