EP0047497A1 - Transformateur - Google Patents

Transformateur Download PDF

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Publication number
EP0047497A1
EP0047497A1 EP19810106887 EP81106887A EP0047497A1 EP 0047497 A1 EP0047497 A1 EP 0047497A1 EP 19810106887 EP19810106887 EP 19810106887 EP 81106887 A EP81106887 A EP 81106887A EP 0047497 A1 EP0047497 A1 EP 0047497A1
Authority
EP
European Patent Office
Prior art keywords
windings
winding
electrically conductive
transformer
primary 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Withdrawn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
EP19810106887
Other languages
German (de)
English (en)
Inventor
Karl Heinz Ing.(Grad.) Black
Klaus Ing.(Grad.) Fischer
Karl-Hans Schmadel
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke 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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of EP0047497A1 publication Critical patent/EP0047497A1/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Withdrawn legal-status Critical Current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
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • 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
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

Definitions

  • the invention relates to a transformer for generating high voltage in television sets with a primary winding and with secondary windings arranged concentrically to the primary winding in the axial direction and connected to one another via diodes.
  • Transformers of this type have the disadvantage that complex winding processes are required for their manufacture and that a complicatedly constructed bobbin is required as a support for the windings.
  • a simple winding construction, while avoiding additional intermediate insulation layers, can be achieved according to an advantageous further development of the invention in that the electrically conductive foils forming the windings consist of metal-coated, electrically insulating plastic foils.
  • the internal resistance of the high-voltage source formed by the transformer can be significantly reduced in that the winding widths of the electrically conductive foils are dimensioned such that the secondary windings are harmonic to the lines frequency are matched and also reduce in that the number of turns of the electrically conductive foils forming the secondary windings are dimensioned such that the secondary windings are tuned to harmonics of the line frequency.
  • the internal resistance of the high-voltage source formed by the transformer can additionally be reduced in that the primary winding is formed by at least one winding made of electrically conductive film, the magnetic coupling between the primary winding and the secondary windings being able to be improved thereby that the primary winding is divided into interconnected partial windings, each of the partial windings is formed by a winding of electrically conductive foil, the partial windings are arranged next to one another in the axial direction, and each secondary winding is assigned a partial winding of the primary winding.
  • a simple construction of such a transformer which at the same time ensures high operational reliability of the transformer, consists, according to an advantageous development of the invention, in that the diodes are connected via metal strips to the ends of the windings which form the secondary windings and are made of electrically conductive foil.
  • the strips can be attached to the diode connections, for example, by spot or ultrasonic welding and on the metal layer of the electrically conductive film of the secondary winding by gluing with a conductive adhesive or with the aid of ultrasonic welding.
  • transformers according to the invention have a low internal resistance with a simple construction as a high voltage source.
  • transformers according to the invention are very reliable since there are no corona discharge faults.
  • complex measures for insulation can be dispensed with in the case of transformers according to the invention.
  • the figure shows a section in the axial direction containing the center line through a transformer according to the invention.
  • Figure 2 shows such a transformer in a side view.
  • the windings which form the secondary windings of the transformer according to the invention and are made of electrically conductive film.
  • the windings made of electrically conductive foil, which form the secondary windings 1, 2 and 3, consist of the insulating plastic foils 4, 5 and 6 coated with metal. 7, 8 and 9 show the metal layers, which consist for example of aluminum and are vapor-deposited onto the plastic foils.
  • the plastic films 4, 5 and 6 are not coated with metal for better electrical insulation in the edge areas.
  • the secondary windings are connected to one another via the diodes 10, 11 and 12. This is indicated in FIG. 1 and is explained in more detail in FIG. 2.
  • the secondary windings are wound on a coil former 13, which can also be dispensed with in order to achieve an inexpensive construction.
  • the primary winding of the transformer also consists of a winding 14 made of plastic film 15 coated with metal 16.
  • the primary winding 14 is also wound on a coil former 17.
  • the core of the transformer arranged in the coil former 17 is not shown in the figures.
  • the primary winding consists of a single winding.
  • the transformer according to the invention shown in FIG. 2 of the type shown in FIG. 1 has windings 1, 2 and 3 made of plastic films 4, 5 and 6 coated with metal 7, 8 and 9 as secondary windings.
  • the windings 1, 2 and 3 are connected to one another via the diodes 10, 11 and 12.
  • the connections of the diodes 10, 11 and 12 are connected to the windings 1, 2 and 3 via metal strips 18, 19, 20, 21 and 22.
  • the metal strips 18, 19, 20, 21 and 22 can be connected, for example by welding, to the connections of the diodes 10, 11 and 12, while the metal strips 18, 19, 20, 21 and 22 with the metal layers 7, 8 and 9 of the :
  • Windings 1, 2 and 3 are connected in an electrically conductive manner, for example using a conductive adhesive or by ultrasonic welding.
  • the external wiring of the transformer can also be made using appropriate metal strips.
  • the secondary windings By dimensioning the secondary windings according to the invention, these can be tuned to approximately harmonics of the line frequency, so that the high-voltage source formed by the transformer has a low internal resistance.
  • Transformers according to the invention of the type illustrated in FIGS. 1 and 2 are cast with a hot or cold-curing synthetic resin compound after completion of the winding structure and the external wiring with diodes and possibly further components, so that a compact high-voltage unit for color television and black and white television sets results supplies the anode voltage for the picture tubes and possibly other switching stages of the television sets.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP19810106887 1980-09-10 1981-09-03 Transformateur Withdrawn EP0047497A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3033979 1980-09-10
DE19803033979 DE3033979A1 (de) 1980-09-10 1980-09-10 Transformator

Publications (1)

Publication Number Publication Date
EP0047497A1 true EP0047497A1 (fr) 1982-03-17

Family

ID=6111535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810106887 Withdrawn EP0047497A1 (fr) 1980-09-10 1981-09-03 Transformateur

Country Status (2)

Country Link
EP (1) EP0047497A1 (fr)
DE (1) DE3033979A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122546A1 (fr) * 1983-04-08 1984-10-24 Deutsche Thomson-Brandt GmbH Transformateur de balayage horizontal
GB2163908A (en) * 1984-09-01 1986-03-05 Marconi Co Ltd A transformer
US4689593A (en) * 1984-09-01 1987-08-25 The Marconi Company Limited Transformer with balanced transmission lines
EP0286980A1 (fr) * 1987-04-14 1988-10-19 Zanussi Elettromeccanica S.p.A. Transformateur de haute tension
WO1992010906A1 (fr) * 1990-12-10 1992-06-25 Deutsche Thomson-Brandt Gmbh Transformateur h.t. pour postes recepteurs de television
US5576681A (en) * 1990-12-10 1996-11-19 Deutsche Thomson-Brandt Gmbh High voltage transformer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551259B1 (fr) * 1983-08-25 1985-11-08 Siemens Sa Transformateur haute tension
DE4142522A1 (de) * 1991-12-21 1993-06-24 Thomson Brandt Gmbh Verfahren zum wickeln eines hochspannungstransformators fuer einen fernsehempfaenger

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069705B (fr) * 1959-11-26
DE1256687B (de) * 1965-11-03 1967-12-21 Telefunken Patent Zeilenablenktransformator mit Hochspannungswicklung
DE1908824A1 (de) * 1969-02-21 1970-09-10 Siemens Ag Mehrlagige elektrische Spule
DE2351130A1 (de) * 1973-10-10 1975-05-07 Hitachi Ltd Ruecklauftransformator
DE2504355A1 (de) * 1974-02-04 1975-08-14 Hitachi Ltd Elektronenstrahlroehren-hochspannungsgenerator
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
DE2612465B1 (de) * 1976-03-24 1977-06-08 Nordmende Zeilentransformator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069705B (fr) * 1959-11-26
DE1256687B (de) * 1965-11-03 1967-12-21 Telefunken Patent Zeilenablenktransformator mit Hochspannungswicklung
DE1908824A1 (de) * 1969-02-21 1970-09-10 Siemens Ag Mehrlagige elektrische Spule
DE2351130A1 (de) * 1973-10-10 1975-05-07 Hitachi Ltd Ruecklauftransformator
DE2504355A1 (de) * 1974-02-04 1975-08-14 Hitachi Ltd Elektronenstrahlroehren-hochspannungsgenerator
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
DE2612465B1 (de) * 1976-03-24 1977-06-08 Nordmende Zeilentransformator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122546A1 (fr) * 1983-04-08 1984-10-24 Deutsche Thomson-Brandt GmbH Transformateur de balayage horizontal
GB2163908A (en) * 1984-09-01 1986-03-05 Marconi Co Ltd A transformer
US4689593A (en) * 1984-09-01 1987-08-25 The Marconi Company Limited Transformer with balanced transmission lines
EP0286980A1 (fr) * 1987-04-14 1988-10-19 Zanussi Elettromeccanica S.p.A. Transformateur de haute tension
WO1992010906A1 (fr) * 1990-12-10 1992-06-25 Deutsche Thomson-Brandt Gmbh Transformateur h.t. pour postes recepteurs de television
TR25836A (tr) * 1990-12-10 1993-09-01 Thomson Brandt Gmbh BIR TELEVIZYON ALICISI ICIN YüKSEK VOLTAJ
US5576681A (en) * 1990-12-10 1996-11-19 Deutsche Thomson-Brandt Gmbh High voltage transformer

Also Published As

Publication number Publication date
DE3033979A1 (de) 1982-04-22

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR IT

17P Request for examination filed

Effective date: 19820916

ITF It: translation for a ep patent filed
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860402

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHMADEL, KARL-HANS

Inventor name: FISCHER, KLAUS, ING.(GRAD.)

Inventor name: BLACK, KARL HEINZ, ING.(GRAD.)