EP0269074B1 - Transformateur de lignes - Google Patents

Transformateur de lignes Download PDF

Info

Publication number
EP0269074B1
EP0269074B1 EP87117337A EP87117337A EP0269074B1 EP 0269074 B1 EP0269074 B1 EP 0269074B1 EP 87117337 A EP87117337 A EP 87117337A EP 87117337 A EP87117337 A EP 87117337A EP 0269074 B1 EP0269074 B1 EP 0269074B1
Authority
EP
European Patent Office
Prior art keywords
insulating housing
adjuster
adjuster arrangement
arrangement
voltage
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 - Lifetime
Application number
EP87117337A
Other languages
German (de)
English (en)
Other versions
EP0269074A1 (fr
Inventor
Erich Dr. Kettner
Heinz Lehner
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.)
Nokia Deutschland GmbH
Original Assignee
Nokia Deutschland 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 Nokia Deutschland GmbH filed Critical Nokia Deutschland GmbH
Publication of EP0269074A1 publication Critical patent/EP0269074A1/fr
Application granted granted Critical
Publication of EP0269074B1 publication Critical patent/EP0269074B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H01F2038/423—Flyback transformers with adjusting potentiometers

Definitions

  • the invention relates to a line transformer for television sets according to the preamble of claim 1.
  • Such a line transformer is known from EP-B1-66 804.
  • the contact parts of the adjuster arrangement consist of solder lugs attached to a substrate carrying the adjuster, from which printed conductor tracks lead to the adjuster.
  • the solder lugs are connected to the high voltage winding or the zero potential. The distance between the solder lugs determines the maximum high voltage that can be applied to the adjuster arrangement. This then results in the maximum adjustable focus voltage for the picture tube of the television set.
  • the invention has for its object a line transformer with an adjuster arrangement with a higher dielectric strength and to specify while maintaining the technically very simple sliding seat connection of adjuster arrangement and insulating material housing.
  • the line transformer shown in Fig. 1 has an insulating housing 1, in which a winding 2 is shown, which is the primary winding and the low-voltage secondary windings.
  • the windings of the high-voltage secondary winding are wound on a coil former 3, which has a number of winding chambers.
  • the diodes 4 connected between the partial windings of the high-voltage secondary winding are arranged on the circumference of the coil former 3.
  • the insulating housing 1 has a partition 5, on the sides of which sliding seat guides 6 are arranged.
  • the adjuster assembly 7 is inserted into these sliding seat guides.
  • the adjuster arrangement 7 is a cuboid box in which the adjusters, consisting of variable and fixed resistors, are arranged for setting a focus and grid 2 voltage. In addition, the lines 8 for the set and to be discharged soannungen are attached to it.
  • the adjuster arrangement 7 has Contact parts 9, which connect the high-voltage winding and the zero potential by means of soldered wires 13 and 14 respectively. It can be seen that the contact parts 9, when the adjuster arrangement 7 is in its intended location, protrude through narrow slots in the insulating housing 1.
  • the hook 10 connected to the adjuster arrangement can also be seen, which engages behind the lug 11 after the adjuster arrangement has been inserted and holds the adjuster arrangement in place.
  • a line 15 is connected to the diode 4 connected to the last partial winding of the high-voltage winding, with which the generated high voltage is applied to the picture tube of the television set.
  • the insulating material housing is closed at this point by a grommet 16 pushed over the line 15.
  • the insulating housing 1 is filled with a self-curing synthetic resin in order to increase the dielectric strength.
  • the line transformer also has a ferrite core 12.
  • the substrate 17 for example made of ceramic, has two semicircular resistance tracks 18, 19, a straight resistance track 20 and two conductor tracks 21, 22. There are also two wipers 23 and 24, to which the lines 8 are connected.
  • the semicircular resistance tracks 18, 19 with the associated wipers 23 and 24 represent the adjusters of the adjuster arrangement.
  • the conductor track 21 connects the resistance track 18 to a soldering lug serving as contact part 9, which is connected to the ground potential becomes.
  • the conductor track 22 connects the resistance track 19 to an insulated wire 25, which runs along the substrate 17 and to which the high-voltage winding is connected.
  • the part of the insulated wire 25 projecting beyond the end of the substrate 17 carrying the contact part 9 is stripped at its end.
  • the insulated wire also has such a high stiffness that its stripped end, like the soldering lug of the contact part 9, can be pushed through the narrow slots in the insulating material housing 1 when the adjuster arrangement 7 is inserted into the sliding seat guide 6 of the line transformer.
  • the insulation of the wire 5 extends into the interior of the insulating material housing.
  • This configuration of the adjuster arrangement 7 achieves a very high dielectric strength without creating a complicated structure.
  • the simple assembly of the adjuster arrangement with the line transformer is also retained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Details Of Television Scanning (AREA)
  • Housings And Mounting Of Transformers (AREA)

Claims (1)

  1. Transformateur de lignes pour téléviseurs, comprenant au moins un enroulement primaire et un enroulement secondaire disposés dans un boîtier isolant et scellés avec une résine synthétique et un dispositif d'ajustage logé dans un boîtier et relié électriquement avec un enroulement secondaire servant d'enroulement haute tension et disposé sur le boîtier isolant, le boîtier isolant contenant une paroi de séparation entre son espace intérieur et le dispositif d'ajustage et le dispositif d'ajustage étant équipé sur une extrémité de pièces de contact faisant saillie, lors de l'introduction du dispositif d'ajustage dans les guidages de l'ajustage appuyé du boîtier isolant dans l'espace intérieur du boîtier isolant à travers des fentes se trouvant sur le fond du boîtier isolant,
    caractérisé en ce que
    la pièce de contact à relier avec l'enroulement haute tension consiste en un fil isolé (25)
    - qui relie l'enroulement haute tension directement avec le dispositif d'ajustage (19, 24) pour une tension de focalisation,
    - dont l'isolation va jusqu'à l'espace intérieur du boîtier isolant (1) et
    - qui possède une rigidité tellement grande qu'il peut, lors de l'introduction du dispositif d'ajustage, être glissé à travers une fente dans le fond du boîtier isolant (1).
EP87117337A 1986-11-28 1987-11-25 Transformateur de lignes Expired - Lifetime EP0269074B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3640732 1986-11-28
DE19863640732 DE3640732A1 (de) 1986-11-28 1986-11-28 Zeilentransformator

Publications (2)

Publication Number Publication Date
EP0269074A1 EP0269074A1 (fr) 1988-06-01
EP0269074B1 true EP0269074B1 (fr) 1992-09-30

Family

ID=6315026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117337A Expired - Lifetime EP0269074B1 (fr) 1986-11-28 1987-11-25 Transformateur de lignes

Country Status (3)

Country Link
EP (1) EP0269074B1 (fr)
JP (1) JPS63190314A (fr)
DE (2) DE3640732A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821113A1 (de) * 1988-06-23 1989-12-28 Grundig Emv Schaltnetzteil mit kombinierter horizontalendstufenschaltung in bildwiedergabegeraeten
DE9201994U1 (de) * 1992-02-17 1992-05-14 Nokia (Deutschland) GmbH, 7530 Pforzheim Zeilentransformator für Fernsehgeräte
DE19626730A1 (de) * 1996-07-03 1998-01-08 Thomson Brandt Gmbh Hochspannungstransformator für einen Fernsehempfänger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5820517B2 (ja) * 1976-04-24 1983-04-23 富士通株式会社 サンプリング制御方式
JPS5938027Y2 (ja) * 1979-05-02 1984-10-22 株式会社日立製作所 フライバツクトランス
JPS585322B2 (ja) * 1979-09-27 1983-01-31 東京工機株式会社 アスフアルトプラントの排風装置
JPS5820517U (ja) * 1981-07-31 1983-02-08 三洋電機株式会社 高圧可変抵抗器付フライバツクトランス
JPS585322U (ja) * 1981-06-30 1983-01-13 三洋電機株式会社 高圧可変抵抗器付フライバツクトランス
CA1188819A (fr) * 1981-06-30 1985-06-11 Sanyo Electric Co., Ltd. Transformateur de sortie horizontale

Also Published As

Publication number Publication date
JPS63190314A (ja) 1988-08-05
EP0269074A1 (fr) 1988-06-01
DE3640732A1 (de) 1988-06-09
DE3782005D1 (de) 1992-11-05
JPH0522367B2 (fr) 1993-03-29

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