EP0066804B1 - Zeilentransformator für Fernsehgeräte - Google Patents

Zeilentransformator für Fernsehgeräte Download PDF

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Publication number
EP0066804B1
EP0066804B1 EP82104681A EP82104681A EP0066804B1 EP 0066804 B1 EP0066804 B1 EP 0066804B1 EP 82104681 A EP82104681 A EP 82104681A EP 82104681 A EP82104681 A EP 82104681A EP 0066804 B1 EP0066804 B1 EP 0066804B1
Authority
EP
European Patent Office
Prior art keywords
insulating material
casing
adjuster arrangement
windings
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.)
Expired
Application number
EP82104681A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0066804A2 (de
EP0066804A3 (en
Inventor
Karlheinz Fraunhofer
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
Alcatel SEL AG
Standard Elektrik Lorenz AG
International Standard Electric Corp
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 Alcatel SEL AG, Standard Elektrik Lorenz AG, International Standard Electric Corp filed Critical Alcatel SEL AG
Publication of EP0066804A2 publication Critical patent/EP0066804A2/de
Publication of EP0066804A3 publication Critical patent/EP0066804A3/de
Application granted granted Critical
Publication of EP0066804B1 publication Critical patent/EP0066804B1/de
Expired 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 application relates to a line transformer for television sets, consisting of at least one primary and at least one secondary winding, at least one of which is arranged in an insulating housing and potted with a self-curing synthetic resin, which is housed in a housing and is electrically connected to the high-voltage winding (s) ) connected and arranged in a sliding seat guide of the insulating housing adjuster arrangement.
  • Line transformers in which the windings are arranged in an insulating housing and potted with a self-curing synthetic resin, are known from DE-OS 23 51 130.
  • the known line transformers of this type still have some significant disadvantages.
  • the insulating material housing has a corresponding opening at the point at which the parallelepiped-shaped adjuster arrangement is fastened by means of the sliding seat guide.
  • This has the disadvantage that the inside of the setting arrangement comes into direct contact with the casting resin when the transformer windings are cast. For this reason, this side of the adjuster arrangement must be carefully sealed so that no casting resin gets into the adjuster arrangement.
  • the electrical components in the adjuster arrangement experience an increased thermal load during casting.
  • at least two outgoing lines of the adjuster arrangement must be provided with additional seals, because they are partly in the space filled with casting resin.
  • Another disadvantage is that two further lines of the adjuster arrangement, which represent the connection to the windings, are located on the side of the adjuster arrangement facing the interior of the insulating material housing. This leads to difficulties in the assembly of the line transformer in such a way that the adjuster arrangement and windings must be connected to one another, for example soldered, before they are inserted together into the insulating housing. This makes it difficult to insert these components.
  • a line transformer for television sets is known, in which a corresponding opening in the housing is covered by an adjuster arrangement - called a resistance block there.
  • the result of this is that the inside of the resistance block comes into direct contact with the synthetic resin and the resistors experience an increased thermal load during casting, in particular because they are arranged on an aluminum plate.
  • the resistance block must be carefully fitted into the housing or it must be sealed carefully.
  • the invention has for its object to provide a line transformer with an insulating housing designed in such a way that the sealing of the interior, the adjuster arrangement and the lines leading from it to the outside as well as the thermal stress on the adjuster arrangement is eliminated.
  • the insulating material housing has a partition between the interior to be cast in the winding (s) to be cast and the adjuster arrangement, which is part of the wall of the insulating material housing.
  • the invention has the advantage that the same insulating material housing can be used both for line transformers with and without adjuster arrangement. If the insulating housing is used for line transformers with adjuster arrangement, then it is no longer necessary to seal the interior of the adjuster arrangement and the lines leading from it to the outside. In addition, the possible thermal stress on the adjuster arrangement is greatly reduced because there is a ventilated space between the partition and the adjuster arrangement.
  • the winding (s) of the line transformer can now be inserted into the insulating material housing independently of the adjuster arrangement and can then be connected to the adjuster arrangement in a simple manner.
  • Fig. 1 shows the electrical circuit diagram of a line transformer, which has a primary winding and a plurality of secondary windings. Some of the secondary windings supply auxiliary voltages with a relatively low voltage. In addition, a secondary winding providing a high voltage is provided, which is divided into several partial windings, between which diodes are connected in each case.
  • This circuit structure makes it clear that it is the circuit diagram of a diode split high-voltage transformer. It can also be seen from FIG. 1 that a voltage is tapped from a partial winding of the secondary winding generating the high voltage and adjustable voltages are generated by means of one or more adjustable resistors, for example the focusing voltage Ufo and the screen grid voltage Ug 2.
  • Fig. 2 shows the windings of the high voltage transformer, which are nested and then inserted into the insulating housing 1.
  • the winding 2 is the primary winding and the low-voltage secondary windings.
  • 3 denotes the bobbin having a number of winding chambers, on which the windings of the high-voltage secondary winding are wound.
  • the diodes 4 connected between the partial windings of the high-voltage secondary windings are arranged on the circumference of the coil former 3.
  • the insulating material housing 1 has the partition 5 on its side facing the viewer in FIG. 1.
  • the sliding seat guides 6 are arranged on two sides of the partition 5, into which the adjuster arrangement 7 (FIG. 3) is inserted.
  • the adjuster arrangement 7 is a cuboid box in which the variable and fixed resistors are arranged according to the circuit in FIG. 1.
  • the lines 8 for the voltages to be dissipated are attached to it.
  • the connections for connecting the adjuster arrangement to the windings of the high-voltage winding are routed to the contact parts 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)
  • Details Of Television Scanning (AREA)
EP82104681A 1981-06-06 1982-05-28 Zeilentransformator für Fernsehgeräte Expired EP0066804B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3122588 1981-06-06
DE19813122588 DE3122588A1 (de) 1981-06-06 1981-06-06 Zeilentransformator fuer fernsehgeraete

Publications (3)

Publication Number Publication Date
EP0066804A2 EP0066804A2 (de) 1982-12-15
EP0066804A3 EP0066804A3 (en) 1983-05-25
EP0066804B1 true EP0066804B1 (de) 1985-10-16

Family

ID=6134121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104681A Expired EP0066804B1 (de) 1981-06-06 1982-05-28 Zeilentransformator für Fernsehgeräte

Country Status (5)

Country Link
EP (1) EP0066804B1 (ja)
JP (2) JPS5840809A (ja)
DE (2) DE3122588A1 (ja)
ES (1) ES8304742A1 (ja)
FI (1) FI70340C (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1188819A (en) * 1981-06-30 1985-06-11 Sanyo Electric Co., Ltd. Flyback transformer
DE3311775C1 (de) * 1983-03-31 1984-06-20 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Transformator fuer die Ablenkung von Elektronenstrahlen
DE3334904C1 (de) * 1983-09-27 1984-06-20 Murata Manufacturing Co., Ltd., Nagaokakyo, Kyoto Zeilenendtransformator mit eingebautem variablem Hochspannungswiderstand
JPS6374083U (ja) * 1986-10-31 1988-05-17
DE3902219A1 (de) * 1989-01-26 1990-08-02 Electronic Werke Deutschland Kammer-spulenkoerper fuer den hochspannungstransformator eines fernsehempfaengers
DE3921096A1 (de) * 1989-06-28 1991-01-03 Grundig Emv Diodensplit-transformator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7416455A (nl) * 1973-12-19 1975-06-23 Indesit Hoogspanningsinrichting.
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

Also Published As

Publication number Publication date
FI70340C (fi) 1986-09-15
DE3122588A1 (de) 1983-04-14
JPS5840809A (ja) 1983-03-09
ES512827A0 (es) 1983-03-01
ES8304742A1 (es) 1983-03-01
EP0066804A2 (de) 1982-12-15
FI821966A0 (fi) 1982-06-02
EP0066804A3 (en) 1983-05-25
FI70340B (fi) 1986-02-28
JPS602812U (ja) 1985-01-10
DE3266905D1 (en) 1985-11-21

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