EP0133676A1 - Fiche à haute tension pour un tube d'images - Google Patents

Fiche à haute tension pour un tube d'images Download PDF

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Publication number
EP0133676A1
EP0133676A1 EP84108942A EP84108942A EP0133676A1 EP 0133676 A1 EP0133676 A1 EP 0133676A1 EP 84108942 A EP84108942 A EP 84108942A EP 84108942 A EP84108942 A EP 84108942A EP 0133676 A1 EP0133676 A1 EP 0133676A1
Authority
EP
European Patent Office
Prior art keywords
claw
cap
voltage
voltage cable
picture tube
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
EP84108942A
Other languages
German (de)
English (en)
Other versions
EP0133676B1 (fr
Inventor
Rudolf Deragisch
Harald Mayer
Dieter Rybarczik
Walter Baumann
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.)
Roederstein Spezialfabriken fur Bauelemente Der E
Original Assignee
ROEDERSTEIN KONDENSATOREN
Roederstein Spezialfabriken fur Bauelemente Der Elektronik und Kondensatoren Der Starkstromtechnik GmbH
Ernst Roederstein Spezialfabrik fuer Kondensatoren 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 ROEDERSTEIN KONDENSATOREN, Roederstein Spezialfabriken fur Bauelemente Der Elektronik und Kondensatoren Der Starkstromtechnik GmbH, Ernst Roederstein Spezialfabrik fuer Kondensatoren GmbH filed Critical ROEDERSTEIN KONDENSATOREN
Publication of EP0133676A1 publication Critical patent/EP0133676A1/fr
Application granted granted Critical
Publication of EP0133676B1 publication Critical patent/EP0133676B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/92—Means forming part of the tube for the purpose of providing electrical connection to it
    • H01J29/925—High voltage anode feedthrough connectors for display tubes

Definitions

  • the invention relates to a high-voltage connector for a picture tube, in which a plug claw connected to the line of the high-voltage cable is surrounded by an elastic protective cap made of a silicone rubber material, which can be snugly pressed against the picture tube by the engagement of the plug claw in the contact socket of the picture tube and has an insertion socket through which the high-voltage cable runs moisture-proof.
  • Such a high-voltage connector for the anode connection of a picture tube is known (DE-U-82 05 618).
  • the use of highly elastic silicone rubber material for the protective cap and a plug claw which is hooked to the contact socket of the picture tube leads to the protective cap being pulled tightly against the convexly curved picture tube wall by the hooked plug claw and with part of the inner surface of the cap adjacent to the edge of the cap the picture tube hugs. This is to prevent the ingress of dust and moisture with the result of high voltage flashovers.
  • the outer surface of the picture tube wall is roughened, so that with the known embodiments of the protective cap it does not always lie tightly against the picture tube wall and therefore high voltage flashovers can still occur due to the penetration of moisture and dust.
  • the contact pressure with which the protective cap is pulled from the plug claw over as large a part of the inner surface of the cap against the picture tube wall as possible must be as great as possible in the known high-voltage plug. But then there is a considerable pulling force on the plug claw, s o that the connector claw must be well anchored in the protective cap and there is a risk that the connection between the connector claw and the line of the high-voltage cable is loaded. Therefore, in the known high-voltage connector, the connector claw is fixed in a mounting plate embedded in the silicone rubber material, on which the connection end of the cable and other existing electrical components, such as a protective resistor, are mounted with strain relief.
  • the mounting plate with the electrical components is overmolded with the silicone rubber in one operation, while simultaneously forming the protective cap and its insertion socket.
  • the presence of the mounting plate leads to a more bulky design of the high-voltage connector, the material expenditure for the relatively expensive silicone rubber material is high.
  • the contact pressure of the protective cap is to be large in order to achieve the largest possible, tight fit against the picture tube wall, the force required for this must be transmitted via the protective cap wall to its outer edge.
  • the higher the contact pressure the higher the stiffness of the protective cap wall.
  • a correspondingly stiffer protective cap leads to an increase in the wall thickness of the cap wall, which in turn requires a higher amount of material. It is also known to stiffen the protective cap wall by means of radially running inner and outer ribs (DE-A-28 17 105).
  • the invention solves the problem of designing a high-voltage connector of the type mentioned at the outset in such a way that a high-voltage-resistant pressing of the protective cap against the picture tube wall is achieved with a low material outlay for the silicone rubber material.
  • a sealing lip protrudes from the free edge of the protective cap, from which a flat annular groove is delimited on the inside of the protective cap edge.
  • the formation of the flat annular groove, which is several times larger than the depth, on the inside of the cap edge creates a free space following the area of the cap inner surface clinging to the picture tube wall.
  • this fitting area of the protective cap is effectively separated from the peripheral edge of the protective cap with regard to the capillary action, which can occur in the presence of moisture for reasons mentioned above.
  • the sealing lip serves, on the one hand, to maintain this free stretch by supporting the sealing lip on the picture tube wall and, on the other hand, to protect this free stretch against the entry of dust and moisture and therefore to prevent moisture from entering the conforming area of the protective cap.
  • the formation of the free path thus ultimately at least reduces the risk of electric breakdowns.
  • the contact pressure with which the protective cap is pressed against the picture tube in the fitting area and therefore the wall thickness of the cap can be reduced, thereby reducing the material expenditure for the silicone rubber material.
  • the tensile force required for pressing the high-voltage connector against the picture tube wall, which acts on the connector claw is reduced, as a result of which the connector claw can be firmly anchored in the silicone rubber material without the space-consuming mounting plate in the high-voltage connector, and the material expenditure for this Lower silicone rubber material further.
  • annular collar covering the annular groove is formed on the outside of the protective cap edge, so that this part of the cap wall, which is weakened by the formation of the annular groove on the inside, is reinforced by the formation of the annular collar to the outside and prevents the free path from falling.
  • the plug claw In order to improve the anchoring of the plug claw in the cap base, it is preferred to support the plug claw with a shank part of its claw shaft extending in an angle to the cap axis in or on the cap material against the claw end. In this way, a good anchoring of the plug claw can be achieved while still requiring little material for the silicone rubber material.
  • the claw shaft is preferably approximately U-shaped and, with its U-leg leading to the connection end of the line of the high-voltage cable, runs along the side of the high-voltage cable facing away from the cap edge.
  • the high-voltage plug according to the invention can be designed as a composite casting, in which the cable end and the claw shaft are completely embedded in the silicone material.
  • the cable end and the already to the line of the high tensioning is - voltage cable attached plug claw with simultaneous formation of the protective cap and the inlet branch is insert molded in one operation with the silicone rubber material or cast around. In this embodiment, this ensures at the same time good anchoring of the plug claw in the silicone rubber material, the moisture-tight contact of the inlet connector wall with the high-voltage cable and its good strain relief.
  • the protective cap with the insertion socket can also be manufactured separately using the injection molding process and can only be equipped with the plug claw and the cable at a later date.
  • a ring is recessed in the cap material around the plug claw, which is partially delimited on the side of the high-voltage cable facing the cap edge by a web or extension consisting of the cap material, on which the end of the high-voltage cable and the one at an acute angle to the cap axis extending shaft part of the claw shaft are supported.
  • this cavity is filled with a fast-curing one-component silicone rubber potting material for fixing the plug claw, sealing the cable end against the interior of the cap and forming the strain relief for the cable.
  • an additional improvement in the anchoring of the plug claw is achieved in that the connecting end of the claw shaft connected to the line of the high-voltage cable is supported against the claw end against a projection made of the cap material and projecting into the cavity.
  • an inner collar resting on the circumference of the high-voltage cable can be formed at the free end of the inlet connector, whereas over the rest Part of the socket inner surface between the same and the high-voltage cable an annular gap is formed, which opens into the cavity, so that the annular gap is filled with the silicone rubber potting material by filling the cavity, through which the inlet connector is tightly connected to the high-voltage cable.
  • the invention can achieve a considerable reduction in weight and the silicone rubber material requirement with good anchorage of the plug claw, good strain relief of the high-voltage cable, good sealing of the interior of the cap against the high-voltage cable and largely high-voltage-proof sealing of the high-voltage connection on the picture tube.
  • the high-voltage connector from FIGS. 1 and 3 each have a protective cap 5 around a connector claw 4 with a lateral insertion socket 6 for the high-voltage cable 3, on the line 2 of which the connector claw 4 is soldered to the connecting end 15 of its claw shaft 10, 11.
  • the protective cap 5, with its insertion piece 6, is made of a silicone rubber material and, in the embodiments shown, is made of a two-component liquid silicone rubber in an injection molding process.
  • the cap jacket 21 of the protective cap 5 runs in a conical shape with an opening angle of approximately 120 ° in the embodiment from FIG. 1, and with an opening angle of approximately 95 ° in the embodiment from FIG. 3.
  • a flat annular groove 8 is formed which is several times larger than depth.
  • the continuous along the circumferential edge of the cap shell 21 is covered on the outside of the cap shell 21 by an annular collar 9 and on the free cap edge of an axially Cap protruding sealing lip 7 limited.
  • the plug claw 4 is anchored with its claw shaft 10, 11 together with the end of the high-voltage cable 3 in the material-reinforced cap base 19 against the tensile force acting on the plug claw 4 in the installed position.
  • a ring 12 is recessed around the plug claw 4 in the extension of the interior of the cable insertion 6 in the cap base 19, which is made of the cap material towards the inside of the cap by a web 13 which is offset from the axis of the protective cap 5 to the insertion 6 is bridged.
  • the high-voltage cable 3 protruding into the cavity beyond the web 13 lies on and on or in the web is the claw shaft 10, 11 of the plug claw 4 with a shaft part 10 extending at an acute angle in the range of 45 ° to the cap axis thereof Supported side inside the cap.
  • the connector claw 4 is bent from a U-shaped bracket, the bracket legs of which form the claw shaft 10, 11 and, with their hook-shaped angled free ends, the claw end of the connector claw.
  • the claw shaft 10, 11 is approximately U-shaped.
  • the shaft part 10 which is positioned at an angle to the cap axis and is supported on the web 13, runs away from the free cable end and from the cap axis and then merges into the U-leg 11 via a curved part 20 the side of the high-voltage cable 3 facing away from the edge of the cap runs to its free end and ends there in the U-apex of the U-shaped bracket in a transverse arch piece, from which the connecting end 15 of the claw shaft 10, 11 is formed.
  • the projecting line 2 of the high-voltage cable 3 is inserted into this crossbow piece and soldered there.
  • two slots are formed in the web 13 from the edge thereof in the direction of the insertion nozzle 6, into which the two bow legs of the connector claw 4 already soldered to the line 2 of the high-voltage cable 3 in the latter Insert into the cavity 12 of the protective cap 5 until they rest with their shaft part 10 which runs at an acute angle to the cap axis to support it on the web 13 on the slot base and the plug claw 4 is brought into the position shown in FIG. 1.
  • the cavity 12 is filled after the insertion of the plug claw 4 to fix the claw shank 10, 11 with a fast-curing one-component silicone rubber potting material 14, which also causes the complete sealing of the cable end and the interior of the insertion 6 against the inside of the cap.
  • a fast-curing one-component silicone rubber potting material 14 which also causes the complete sealing of the cable end and the interior of the insertion 6 against the inside of the cap.
  • an inner collar 17 is formed, which rests elastically on the circumference of the high-voltage cable 3 and an annular gap 18 between the remaining part of the inside of the inlet connector 6 and the high-voltage cable 3 closes to the outside.
  • This annular gap 18 opens into the cavity 12 of the connector claw and, like this, is filled with silicone rubber potting material injected through a through hole 23 in the web 13.
  • a projection 16 protruding into it is formed, on which the connection end 15 of the claw shaft rests.

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  • Connector Housings Or Holding Contact Members (AREA)
EP84108942A 1983-08-03 1984-07-27 Fiche à haute tension pour un tube d'images Expired EP0133676B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3328033 1983-08-03
DE3328033A DE3328033C2 (de) 1983-08-03 1983-08-03 Hochspannungsstecker für eine Bildröhre

Publications (2)

Publication Number Publication Date
EP0133676A1 true EP0133676A1 (fr) 1985-03-06
EP0133676B1 EP0133676B1 (fr) 1988-01-13

Family

ID=6205678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108942A Expired EP0133676B1 (fr) 1983-08-03 1984-07-27 Fiche à haute tension pour un tube d'images

Country Status (2)

Country Link
EP (1) EP0133676B1 (fr)
DE (2) DE3328033C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279019A2 (fr) * 1987-02-13 1988-08-24 Roederstein Spezialfabriken für Bauelemente der Elektronik und Kondensatoren der Starkstromtechnik GmbH Pièce détachée pour haute tension, en particulier connecteur de tube image à haute tension
FR2751581A1 (fr) * 1996-07-26 1998-01-30 Connectic Metallo Procede de surmoulage d'une piece en silicone sur un element allonge et dispositif de connexion haute tension obtenu par ce procede

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720273A (en) * 1986-05-06 1988-01-19 Thole Thomas V Connector assembly for anode socket of cathode ray tube
US4801276A (en) * 1986-05-06 1989-01-31 Thole Thomas V Connector assembly for anode socket of cathode ray tube

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120029B (de) * 1960-11-11 1961-12-21 Rudolf Beilschmidt Verfahren zur Herstellung eines Bildroehren-Hochspannungssteckers und Vorrichtung zur Durchfuehrung dieses Verfahrens
DE1965088A1 (de) * 1968-12-27 1970-07-09 Sony Corp Farbbildroehre
DE2008516A1 (de) * 1970-02-24 1971-09-09 Beilschmidt R Schnee schleuder-Flügelrad
DE2402241A1 (de) * 1974-01-17 1975-07-24 Roederstein Kondensatoren Anschlusstecker fuer ein elektrisches kabel, insbesondere fuer ein hochspannungskabel
DE2507546A1 (de) * 1975-02-21 1976-09-02 Klar & Beilschmidt Fabrik Bildroehren-hochspannungsstecker
DE2817105A1 (de) * 1977-04-19 1978-11-30 Blasius Ind Anschlussanordnung fuer eine anodenkapsel einer kathodenstrahlroehre
DE2809186A1 (de) * 1978-03-03 1979-09-13 Huengerle Kg Elektro App Fab Glockenfoermige saug-schutzkappe fuer elektrische steckverbindungen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7147195U (de) * 1971-12-15 1972-03-30 Keune & Lauber Ohg Hochspannungsfester stecker fuer bildroehren
DE7512611U (de) * 1975-04-19 1975-08-21 Keune & Lauber Ohg Bildröhren-Hochspannungsstecker
DE8205618U1 (de) * 1982-03-01 1982-07-29 Keune & Lauber GmbH, 5920 Bad Berleburg Bildröhren-Hochspannungsstecker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120029B (de) * 1960-11-11 1961-12-21 Rudolf Beilschmidt Verfahren zur Herstellung eines Bildroehren-Hochspannungssteckers und Vorrichtung zur Durchfuehrung dieses Verfahrens
DE1965088A1 (de) * 1968-12-27 1970-07-09 Sony Corp Farbbildroehre
DE2008516A1 (de) * 1970-02-24 1971-09-09 Beilschmidt R Schnee schleuder-Flügelrad
DE2402241A1 (de) * 1974-01-17 1975-07-24 Roederstein Kondensatoren Anschlusstecker fuer ein elektrisches kabel, insbesondere fuer ein hochspannungskabel
DE2507546A1 (de) * 1975-02-21 1976-09-02 Klar & Beilschmidt Fabrik Bildroehren-hochspannungsstecker
DE2817105A1 (de) * 1977-04-19 1978-11-30 Blasius Ind Anschlussanordnung fuer eine anodenkapsel einer kathodenstrahlroehre
DE2809186A1 (de) * 1978-03-03 1979-09-13 Huengerle Kg Elektro App Fab Glockenfoermige saug-schutzkappe fuer elektrische steckverbindungen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279019A2 (fr) * 1987-02-13 1988-08-24 Roederstein Spezialfabriken für Bauelemente der Elektronik und Kondensatoren der Starkstromtechnik GmbH Pièce détachée pour haute tension, en particulier connecteur de tube image à haute tension
EP0279019A3 (en) * 1987-02-13 1989-02-22 Roederstein Spezialfabriken Fur Bauelemente Der Elektronik Und Kondensatoren Der Starkstromtechnik Gmbh High tension comportant part, in particular camera tube high tension comportant part, in particular camera tube high tension connector high tension connector
FR2751581A1 (fr) * 1996-07-26 1998-01-30 Connectic Metallo Procede de surmoulage d'une piece en silicone sur un element allonge et dispositif de connexion haute tension obtenu par ce procede
EP0822049A1 (fr) * 1996-07-26 1998-02-04 Connectic Metallo Procédé de surmoulage d'une pièce en silicone sur un élément allongé et dispositif de connexion haute tension obtenu par ce procédé

Also Published As

Publication number Publication date
DE3468779D1 (en) 1988-02-18
DE3328033C2 (de) 1985-07-25
DE3328033A1 (de) 1985-02-14
EP0133676B1 (fr) 1988-01-13

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