EP0122546A1 - Flyback transformer - Google Patents

Flyback transformer Download PDF

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Publication number
EP0122546A1
EP0122546A1 EP84103760A EP84103760A EP0122546A1 EP 0122546 A1 EP0122546 A1 EP 0122546A1 EP 84103760 A EP84103760 A EP 84103760A EP 84103760 A EP84103760 A EP 84103760A EP 0122546 A1 EP0122546 A1 EP 0122546A1
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EP
European Patent Office
Prior art keywords
winding
foil
wire
taps
serves
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.)
Granted
Application number
EP84103760A
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German (de)
French (fr)
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EP0122546B1 (en
Inventor
Gerard Rilly
Erich Weisser
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.)
Deutsche Thomson Brandt GmbH
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Deutsche Thomson Brandt GmbH
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Filing date
Publication date
Application filed by Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Publication of EP0122546A1 publication Critical patent/EP0122546A1/en
Application granted granted Critical
Publication of EP0122546B1 publication Critical patent/EP0122546B1/en
Expired legal-status Critical Current

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    • 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
    • H01F38/42—Flyback transformers

Definitions

  • the innovation is based on a line transformer. with a winding made of a metallic foil and a plastic foil in between serving as insulation, the winding taps consisting of electrically conductive molded parts inserted transversely to the winding or welded onto the metal foil and projecting beyond the edges of the foil.
  • So-called diode split line transformers which consist of a first winding which carries the primary winding and the secondary windings and which have a second winding from which the high voltage is taken.
  • the high-voltage winding consists of several winding chambers into which the high-voltage winding is distributed. The individual winding sections in the chambers are connected in series via diodes.
  • the high-voltage winding is embedded in a synthetic resin to achieve sufficient high-voltage strength.
  • a sufficiently large coupling between the coils is necessary, i. H. the winding space is very limited in such transformers for the first-mentioned winding. Since the primary winding of the first winding has a relatively high number of turns, this primary winding using film technology takes up too much winding space.
  • the innovation is therefore based on the task of finding a space-saving winding technique for a diode split transformer. This task is solved by the measure indicated in the label of the protection claim.
  • FIG. 1 denotes the winding body of the first winding, on which the secondary winding, consisting of metal foils 2 and insulating intermediate layers 3, is arranged in a known winding technique.
  • metallic molded parts 4 are welded transversely to the film direction, the ends of which protrude beyond the film edges.
  • a primary winding consisting of copper wire turns 5 is wound on this foil winding.
  • the winding body 6 for the high-voltage winding can be pushed over this winding.
  • a molded part 7 is inserted in an insulating film layer 8, embedded between the two windings 3 and 5, which protrudes from both ends of the winding.
  • the section of the molded part 7 opposite the connection side 9 is connected to the wire end 10 of the winding 5, so that both ends 9, 10 of this winding lie on a side common to the other connections.

Abstract

1. A line transformer having a winding of a metallic foil (2) and an interposed plastic film (3) serving as insulation, wherein the winding taps consist of electrically conducting shaped parts (4) which are inserted transversely to the winding or welded onto the metal foil (2) and project beyond the edges of the foil, characterized in that the part of the winding consisting of the metallic (2) serves, with its taps, as a secondary winding and that the primary winding (5) of the line transformer consists of wire turns and that a further electrically conducting shaped part (7), which projects beyond the winding at both ends, is introduced in the axial direction of the winding between the foil winding (2) and the wire winding (5) with the inclusion of an insulation sheet (8), and that the one extremity (9) of the further shaped part (7) serves as an electrical connection for the end (11) of the wire of the primary (5), which end is connected, in an electrically conducting manner, to the further shaped part (7) at the end opposite to the electrical connection (9).

Description

Die Neuerung geht aus von einem Zeilentransormator . mit einem Wickel aus einer metallischen Folie und dazwischen liegender als Isolation dienender Kunststoffolie, wobei die Wicklungsabgriffe aus quer zur Wicklung eingelegten oder auf die Metallfolie aufgeschweißten über die Folienränder hinausragenden elektrisch leitenden Formteilen bestehen.The innovation is based on a line transformer. with a winding made of a metallic foil and a plastic foil in between serving as insulation, the winding taps consisting of electrically conductive molded parts inserted transversely to the winding or welded onto the metal foil and projecting beyond the edges of the foil.

Zur Vereinfachung und Verbilligung der Herstellung eines Wickels für einen Zeilentransformator ist es bekannt, den Wickel mit Hilfe einer metallischen Folie herzustellen, wobei als Isolation eine Kunststoffolieneinlage dient. Die einzelnen elektrischen Abgriffe der Wicklung werden durch quer zur Wicklung eingelegte und eingewickelte oder auch auf die metallische Folie aufgeschweißte Drähte oder Formteile hergestellt, die den Folienrand überragen (DE-AS 26 12 465). Dadurch wird ein erheblich geringerer .Wickelraum benötigt als mit Drahtwicklungen.To simplify and reduce the cost of producing a winding for a line transformer, it is known to produce the winding with the aid of a metallic foil, a plastic foil insert serving as insulation. The individual electrical taps of the winding are produced by wires or molded parts which are inserted and wrapped transversely to the winding or which are also welded onto the metallic foil and which project beyond the edge of the foil (DE-AS 26 12 465). As a result, a significantly smaller winding space is required than with wire windings.

Es sind sogenannte Dioden-Split-Zeilentransformatoren bekannt, die aus einem ersten Wickel bestehen, der die Primärwicklung und die Sekundärwicklungen trägt und die einen zweiten Wickel besitzen, dem die Hochspannung entnommen wird. Der Hochspannungswickel besteht aus mehreren Wickelkammern, in welche die Hochspannungswicklung verteilt wird. Die einzelnen Wicklungsabschnitte in den Kammern sind über Dioden in Serie geschaltet. Die Hochspannungswicklung wird in einem Kunstharz eingebettet zur Erzielung einer ausreichenden Hochspannungsfestigkeit. Es ist dabei eine genügend große Kopplung zwischen den Wickeln notwendig, d. h. der Wickelraum ist bei derartigen Transformatoren für den erst genannten Wickel sehr begrenzt. Da die Primärwicklung des ersten Wickels eine relativ hohe Windungszahl besitzt nimmt diese Primärwicklung in Folientechnik zuviel Wickelraum in Anspruch.So-called diode split line transformers are known which consist of a first winding which carries the primary winding and the secondary windings and which have a second winding from which the high voltage is taken. The high-voltage winding consists of several winding chambers into which the high-voltage winding is distributed. The individual winding sections in the chambers are connected in series via diodes. The high-voltage winding is embedded in a synthetic resin to achieve sufficient high-voltage strength. A sufficiently large coupling between the coils is necessary, i. H. the winding space is very limited in such transformers for the first-mentioned winding. Since the primary winding of the first winding has a relatively high number of turns, this primary winding using film technology takes up too much winding space.

Aufgabe und LösungTask and solution

Der Neuerung liegt deshalb die Aufgabe zugrunde, eine möglichst platzsparende Wickeltechnik für einen Dioden-Split-Transformator zu finden. Diese Aufgabe wird durch die im Kennzeichen des Schutzanspruchs angegebene Maßnahme gelöst.The innovation is therefore based on the task of finding a space-saving winding technique for a diode split transformer. This task is solved by the measure indicated in the label of the protection claim.

Nachstehend soll die Neuerung an einem Ausführungsbeispiel mit Hilfe der Zeichnung näher erläutert werden.The innovation of an exemplary embodiment will be explained in more detail below with the aid of the drawing.

Mit 1 ist der Wickelkörper des ersten Wickels bezeichnet, auf welchem in bekannter Wickeltechnik die Sekundärwicklung, bestehend aus Metallfolien 2 und isolierenden Zwischenlagen 3 angeordnet ist. An denjenigen Stellen der Wicklung, an denen Abgriffe herausgeführt werden, sind metallische Formteile 4 quer zur Folienrichtung angeschweißt, deren Enden über die Folienränder hinausragen. Auf diese Folienwicklung ist eine Primärwicklung, bestehend aus Kupferdrahtwindungen 5 gewickelt. Über diesen Wickel kann der Wickelkörper 6 für die Hochspannungswicklung geschoben werden. Neuerungsgemäß wird nun zwecks Rückführung des Drahtendes 11 der Wicklung 5 ein Formteil 7 in einer Isolierfolienschicht 8, zwischen den beiden Wicklungen 3 und 5 eingebettet, eingefügt, welches an beiden Kopfenden der Wicklung herausragt. Das der AnschluBseite 9 entgegengesetzte Teilstück des Formteils 7 wird mit dem DrahtEnde 10 der Wicklung 5 verbunden, so daß beide Enden 9, 10 dieser Wicklung auf einer mit den anderen AnschlüBen gemeinsamen Seite liegen. Auf diese Weise ergibt sich eine einfache Rückführung, die nicht aufträgt und somit Platz spart, da ein in den Wickel einbezogenes zusätzliches Formteil den Durchmesser eines Wickels nicht vergrößert wie z.B. eine Rückführung des Drahtendes ausserhalb der Wicklung.1 denotes the winding body of the first winding, on which the secondary winding, consisting of metal foils 2 and insulating intermediate layers 3, is arranged in a known winding technique. At those points of the winding at which taps are led out, metallic molded parts 4 are welded transversely to the film direction, the ends of which protrude beyond the film edges. A primary winding consisting of copper wire turns 5 is wound on this foil winding. The winding body 6 for the high-voltage winding can be pushed over this winding. According to the innovation, for the purpose of returning the wire end 11 of the winding 5, a molded part 7 is inserted in an insulating film layer 8, embedded between the two windings 3 and 5, which protrudes from both ends of the winding. The section of the molded part 7 opposite the connection side 9 is connected to the wire end 10 of the winding 5, so that both ends 9, 10 of this winding lie on a side common to the other connections. This results in a simple return, which is not bulky and thus saves space, since an additional molded part included in the winding does not increase the diameter of a winding, e.g. a return of the wire end outside the winding.

Claims (1)

Zeilentransformator mit einem Wickel aus einer metallischen Folie und dazwischen liegender zur Isolation dienender Kunststoffolie, wobei die Wicklungsabgriffe aus quer zur Wicklung eingelegten oder auf die Metallfolie aufgeschweißten über die Folienränder hinausragenden elektrisch leitenden Formteilen bestehen, dadurch gekennzeichnet, daß der aus der Folie (2) bestehende Teil der Wicklung mit seinen Anzapfungen als Sekundärwicklung dient und daß die Primärwicklung (5) des Zeilentransformators aus Drahtwindungen besteht und daß zwischen dem Folienwickel und dem Drahtwickel unter Einschluß einer Isolierfolie (8) in Achsrichtung des Wickels ein elektrisch leitendes Formteil (7) eingefügt ist, welches den Wickel an beiden Stirnseiten überragt und daß das eine Ende (9) des Formteils (7) als elektrischer Anschluß für das Drahtende (11) der Primärwicklung (5) dient, welches an der dem elektrischen Anschluß (9) gegenüberliegenden Seite mit dem Formteil (7) elektrisch leitend verbunden ist.Line transformer with a winding made of a metallic foil and a plastic foil in between for insulation, the winding taps being made of electrically conductive molded parts inserted transversely to the winding or welded onto the metal foil and protruding beyond the foil edges, characterized in that the one consisting of the foil (2) Part of the winding with its taps serves as a secondary winding and that the primary winding (5) of the line transformer consists of wire windings and that an electrically conductive molded part (7) is inserted between the film winding and the wire winding including an insulating film (8) in the axial direction of the winding, which projects beyond the winding on both end faces and that one end (9) of the molded part (7) serves as an electrical connection for the wire end (11) of the primary winding (5), which on the side opposite the electrical connection (9) with the molded part (7) is electrically connected.
EP19840103760 1983-04-08 1984-04-05 Flyback transformer Expired EP0122546B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838310270 DE8310270U1 (en) 1983-04-08 1983-04-08 LINE TRANSFORMER
DE8310270U 1983-04-08

Publications (2)

Publication Number Publication Date
EP0122546A1 true EP0122546A1 (en) 1984-10-24
EP0122546B1 EP0122546B1 (en) 1986-10-08

Family

ID=6752031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840103760 Expired EP0122546B1 (en) 1983-04-08 1984-04-05 Flyback transformer

Country Status (2)

Country Link
EP (1) EP0122546B1 (en)
DE (1) DE8310270U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106653315A (en) * 2016-12-21 2017-05-10 山东华信电气股份有限公司 Sleeve current mutual inductor winded by copper foil mylar polyester belts

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069705B (en) * 1959-11-26
FR2266274A1 (en) * 1974-03-28 1975-10-24 Videon Sa Very high voltage transformer - has winding of conductive and insulating layers around a tube with ferrite core
EP0047497A1 (en) * 1980-09-10 1982-03-17 Blaupunkt-Werke GmbH Transformer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069705B (en) * 1959-11-26
FR2266274A1 (en) * 1974-03-28 1975-10-24 Videon Sa Very high voltage transformer - has winding of conductive and insulating layers around a tube with ferrite core
EP0047497A1 (en) * 1980-09-10 1982-03-17 Blaupunkt-Werke GmbH Transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106653315A (en) * 2016-12-21 2017-05-10 山东华信电气股份有限公司 Sleeve current mutual inductor winded by copper foil mylar polyester belts

Also Published As

Publication number Publication date
DE8310270U1 (en) 1983-12-15
EP0122546B1 (en) 1986-10-08

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