EP0324084B1 - Transformateur à haute tension pour appareil de télévision - Google Patents

Transformateur à haute tension pour appareil de télévision Download PDF

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Publication number
EP0324084B1
EP0324084B1 EP88119532A EP88119532A EP0324084B1 EP 0324084 B1 EP0324084 B1 EP 0324084B1 EP 88119532 A EP88119532 A EP 88119532A EP 88119532 A EP88119532 A EP 88119532A EP 0324084 B1 EP0324084 B1 EP 0324084B1
Authority
EP
European Patent Office
Prior art keywords
extension
sleeve
voltage
integrally moulded
voltage transformer
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
EP88119532A
Other languages
German (de)
English (en)
Other versions
EP0324084A2 (fr
EP0324084A3 (en
Inventor
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 EP0324084A2 publication Critical patent/EP0324084A2/fr
Publication of EP0324084A3 publication Critical patent/EP0324084A3/de
Application granted granted Critical
Publication of EP0324084B1 publication Critical patent/EP0324084B1/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

Definitions

  • High-voltage transformer for television sets consisting of at least one primary and at least one secondary winding, which are arranged in an insulating material housing, and at least one connecting cable which is in electrical contact with a connection of the secondary winding.
  • Such a high-voltage transformer is known (EP-B-66804).
  • the cable ends for example the high-voltage cable and the cable for the focusing voltage, which are electrically conductively connected to the corresponding connections of the secondary winding are firmly connected, for example soldered, to these connections.
  • the invention is therefore based on the technical problem of creating a high-voltage transformer for televisions on which the connecting cables for the high direct voltages are detachable, but are nevertheless fastened in a tensile manner, in which good contact with the connections inside the high-voltage transformer is ensured and the one possible has low overall height.
  • the primary winding 2 and the secondary windings of the high-voltage transformer are arranged in the insulating housing 1.
  • the secondary windings are accommodated in chambers of the coil former 3, and diodes 4 are arranged between the secondary windings accommodated in the chambers.
  • the pin 5 is the high voltage connection.
  • the tip of the connecting pin 5 ends in a plug 6 made of conductive rubber, which is arranged at the lowest point of the tubular extension 7.
  • the core 8 of the high-voltage cable 9 is also immersed in the plug 6.
  • connection cable 10 to the high-voltage transformer and arranged in the recess 20 of the insulating housing 1; this connection cable can be, for example, the cable with which the focusing voltage is led from the high-voltage transformer to the television chassis.
  • the electrically conductive connection is established in that the corresponding tap on the secondary processing is guided with the connecting pin 11 in the plug 12 made of conductive rubber, in which the core 13 of the connecting cable 10 is also immersed.
  • the extension 7 of the insulating material housing 1 has - at least in the upper part - an inside diameter that decreases from top to bottom.
  • a radially inwardly directed clamping lug 14 is integrally formed on the inner wall of the extension 7. Since these components of the high-voltage transformer will generally be plastic injection-molded parts, the integrally molded parts have already been produced during the production of the plastic injection-molded parts.
  • the eyelet 15 On the outside of the extension 7, the eyelet 15 has also been integrally formed.
  • the sleeve 16 has a tab 17 extending into the interior of the extension 7.
  • the hook 18 is integrally formed on the lower end of the sleeve 16 and engages behind the eyelet 15.
  • the sleeve 16 is provided with the integrally molded bracket 19.
  • the high-voltage cable 9 is installed in the following way: After the sleeve 16 has been plugged onto the end of the high-voltage cable 9, on which the core 8 has been exposed, this end of the high-voltage cable is pushed into the extension 7 up to the plug 6. Then the sleeve 16 is pushed onto the extension 7. The tab 17 is pushed between the inner surface of the extension 7 and the surface of the high-voltage cable 9. As a result, the end of the high-voltage cable 9 is clamped on the one hand in the extension 7 and, on the other hand, the clamping lug 14 penetrates into the insulation of the high-voltage cable 9. This creates a form-fitting attachment of the high-voltage cable. The position of the sleeve 16 is secured in that the hook 18 is locked behind the eyelet 15.
  • the contact is made with the connecting cable 10 in the recess 20 with the same means as with the high-voltage cable 9.
  • the strain relief of the connecting cable 10 takes place in that it is clamped on the clamp 19.
  • the solution according to the invention brings an improvement in several respects. It simplifies the assembly of the connection cables. Pushing the cable ends into the intended location is possible without hindrance. Only one component is required to attach two or more cables. With the new high-voltage transformer, the required safety values can be maintained even with a lower overall height.
  • the length of insulation required for the high-voltage connection of the new high-voltage transformer is set by the length of the sleeve 16.
  • the new high-voltage transformer has a lower overall height in the manufacture of the television set chassis than in the final state, which makes handling the television chassis easier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Claims (4)

  1. Transformateur haute tension pour postes récepteurs de télévision, comprenant au moins un enroulement du secteur primaire et un enroulement secondaire, disposés dans un logement (1) en matière isolante, et au moins un câble haute tension (9) en contact électrique avec un raccord de l'enroulement secondaire, le logement (1) en matière isolante étant muni d'une rallonge tubulaire monobloc (7) avec un oeillet (15) façonné et une douille (16) enfichable sur la rallonge (7) étant prévue, cette douille disposant d'un crochet (18) formé d'une pièce avec la douille et concourant fermement avec l'oeillet (15) et une attache (17) faisant saillie dans le compartiment de la rallonge prévu à la réception du câble haute tension (9) étant pratiqué à demeure sur la douille,
    caractérisé en ce que
    le crochet (18) concourant avec l'oeillet (15) est façonné sur l'extrémité inférieure de la douille (16) dirigée vers le logement en matière isolante (1) et
    que la longueur d'isolation nécessaire du raccord haute tension respectif est réglée uniquement par la longueur de la douille (16).
  2. Transformateur haute tension selon la revendication 1,
    caractérisé en ce que
    - un tenon de serrage (14) est pratiqué à demeure sur la rallonge (7), ce tenon faisant saillie dans le compartiment de la rallonge (7) prévu à la réception du câble haute tension (9) et qui s'enfonce dans l'isolation du câble haute tension (9), si la rallonge (7) et la douille (16) sont combinées.
  3. Transformateur haute tension selon les revendications 1 et 2,
    caractérisé en ce que
    une cavité tubulaire (20) pratiquée d'une pièce sur le logement en matière isolante (1) est prévue sur ce dernier et sur la douille (16) une agrafe (19) y pratiquée à demeure.
  4. Transformateur haute tension selon les revendications 1 à 3,
    caractérisé en ce que
    le diamètre intérieur de la rallonge tubulaire (7), de la cavité tubulaire (20) et de la douille (16) diminue de l'extérieur vers l'intérieur.
EP88119532A 1988-01-11 1988-11-24 Transformateur à haute tension pour appareil de télévision Expired - Lifetime EP0324084B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3800477A DE3800477A1 (de) 1988-01-11 1988-01-11 Hochspannungstransformator fuer fernsehgeraete
DE3800477 1988-01-11

Publications (3)

Publication Number Publication Date
EP0324084A2 EP0324084A2 (fr) 1989-07-19
EP0324084A3 EP0324084A3 (en) 1990-06-27
EP0324084B1 true EP0324084B1 (fr) 1994-01-19

Family

ID=6345038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119532A Expired - Lifetime EP0324084B1 (fr) 1988-01-11 1988-11-24 Transformateur à haute tension pour appareil de télévision

Country Status (2)

Country Link
EP (1) EP0324084B1 (fr)
DE (2) DE3800477A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9001351A (nl) * 1990-06-14 1992-01-02 Philips Nv Inrichting met een van een afdichting voorzien aansluitorgaan voor een hoogspanningskabel.
DE4232090C1 (de) * 1992-09-25 1994-04-07 Loewe Opta Gmbh Transformator zur Erzeugung einer Hochspannung für eine Bildröhre in einem Monitor oder einem Fernsehempfangsgerät
DE4412291A1 (de) * 1994-04-09 1995-10-12 Nokia Deutschland Gmbh Zugentlastung
FR2726686B1 (fr) * 1994-11-07 1996-12-20 Thomson Television Components Transformateur haute tension a redressement fractionne avec diodes regroupees
JP3412317B2 (ja) * 1995-02-27 2003-06-03 株式会社村田製作所 フライバックトランス
JPH08236376A (ja) * 1995-02-28 1996-09-13 Murata Mfg Co Ltd フライバックトランス
DE19609656C1 (de) * 1996-03-12 1997-07-24 Acer Peripherals Inc Klammervorrichtung für Ausgangsleitungen eines Horizontal-Ablenktransformators
US6552641B1 (en) 1999-07-27 2003-04-22 Thomson Licensing S.A. Transformer, especially for powering cathode ray tubes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591794B1 (fr) * 1985-12-13 1989-01-13 Orega Electro Mecanique Transformateur haute tension sans cables de sortie haute tension et a bloc potentiometrique amovible, en particulier pour un tube cathodique trichrome

Also Published As

Publication number Publication date
DE3887311D1 (de) 1994-03-03
EP0324084A2 (fr) 1989-07-19
EP0324084A3 (en) 1990-06-27
DE3800477A1 (de) 1989-07-20

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