EP0133676B1 - High-voltage plug for a picture tube - Google Patents

High-voltage plug for a picture tube Download PDF

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Publication number
EP0133676B1
EP0133676B1 EP84108942A EP84108942A EP0133676B1 EP 0133676 B1 EP0133676 B1 EP 0133676B1 EP 84108942 A EP84108942 A EP 84108942A EP 84108942 A EP84108942 A EP 84108942A EP 0133676 B1 EP0133676 B1 EP 0133676B1
Authority
EP
European Patent Office
Prior art keywords
high voltage
claw
cap
plug
voltage cable
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
EP84108942A
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German (de)
French (fr)
Other versions
EP0133676A1 (en
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
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Application filed by ROEDERSTEIN KONDENSATOREN, Roederstein Spezialfabriken fur Bauelemente Der Elektronik und Kondensatoren Der Starkstromtechnik GmbH filed Critical ROEDERSTEIN KONDENSATOREN
Publication of EP0133676A1 publication Critical patent/EP0133676A1/en
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Publication of EP0133676B1 publication Critical patent/EP0133676B1/en
Expired legal-status Critical Current

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    • 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. Then, however, a considerable tensile force acts on the plug claw, so that the plug claw must be well anchored in the protective cap and there is a risk that the connection between the plug claw and the line of the high-voltage cable is loaded. Therefore, in the known high-voltage connector, the plug claw is fixed in a mounting plate embedded in the silicone rubber material, on which the connecting end of the cable and other existing electrical components, such as, for. B. a protective resistor are mounted 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 high in order to achieve the largest possible and most snug 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 route is ultimately the At least the risk of electrical breakdown is reduced.
  • 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 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 end of the cable and the connector claw already connected to the line of the high-voltage cable are overmolded or cast in one operation with the silicone rubber material, while simultaneously forming the protective cap and its insertion piece. 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 insertion pipe 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 cavity is cut out 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 acute angle to the cap axis extending shaft part of the claw shaft are supported. After the claw and the cable end have been introduced, 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 protruding into the cavity.
  • an inner collar which lies against 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 nevertheless significantly reduce the weight and the silicone rubber material requirement good anchoring of the connector 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 claw 5 with a lateral insertion connector 6 for the high-voltage cable 3 around a connector claw 4, on the line 2 of which the connector claw 4 is soldered to the connection end 15 of its claw shank 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 conically 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 annular groove 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 is delimited on the free cap edge by a sealing lip 7 projecting axially from the cap.
  • 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.
  • its 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 after the insertion of the Plug claw 4 for fixing the claw shaft 10, 11 filled with a quick-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.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Description

Die Erfindung betrifft einen Hochspannungsstecker für eine Bildröhre, bei welchem eine an die Leitung des Hochspannungskabels angeschlossene Steckerkralle von einer elastischen Schutzkappe aus einem Silikonkautschukmaterial umgeben ist, die durch den Eingriff der Steckerkralle in die Kontaktbuchse der Bildröhre flächig gegen die Bildröhre anschmiegbar ist und einen Einführstutzen aufweist, durch welchen das Hochspannungskabel feuchtigkeitsdicht hindurchverläuft.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.

Ein derartiger Hochspannungsstecker für den Anodenanschluß einer Bildröhre ist bekannt (DE-U-82 05 618). Die Verwendung von hochelastischem Silikonkautschukmaterial für die Schutzkappe und einer Steckerkralle, die mit der Kontaktbuchse der Bildröhre verhakt wird, führt dazu, daß die Schutzkappe von der verhakten Steckerkralle eng gegen die konvexgewölbte Bildröhrenwand gezogen wird und mit einem Teil der an den Kappenrand angrenzenden Kappeninnenfläche sich an die Bildröhrenwand anschmiegt. Hierdurch soll das Eindringen von Staub und Feuchtigkeit mit der Folge von Hochspannungsüberschlägen verhindert werden. Jedoch ist die äußere Oberfläche der Bildröhrenwand aufgerauht, so daß mit den bekannten Ausführungsformen der Schutzkappe diese nicht stets zuverlässig dicht an der Bildröhrenwand anliegt und daher durch Eindringen von Feuchtigkeit und Staub Hochspannungsüberschläge weiterhin auftreten können. Durch die Rauhigkeit der Bildröhrenwand werden nämlich zwischen dieser und der Kappeninnenfläche enge Hohlräume und Spalte ausgebildet, wodurch bei vorhandener Feuchtigkeit eine Kapillarwirkung auftreten kann, unter welcher die Feuchtigkeit in den zentralen Innenbereich der Schutzkappe gesaugt werden kann. Dies kann zu elektrischen Durchschlägen führen.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. However, 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. Because of the roughness of the picture tube wall, narrow cavities and gaps are formed between it and the inner surface of the cap, which, if moisture is present, can cause a capillary effect under which the moisture can be sucked into the central inner region of the protective cap. This can lead to electrical breakdown.

Um diesen Effekt wenigstens abzuschwächen, muß bei dem bekannten Hochspannungsstecker die Anpreßkraft, mit welcher die Schutzkappe von der Steckerkralle über einen möglichst großen Teil der Kappeninnenfläche hin gegen die Bildröhrenwand gezogen wird, möglichst groß sein. Dann aber wirkt auf die Steckerkralle eine beträchtliche Zugkraft, so daß die Steckerkralle in der Schutzkappe gut verankert sein muß und Gefahr besteht, daß die Anschiußverbindung zwischen der Steckerkralle und der Leitung des Hochspannungskabels belastet wird. Daher ist bei dem bekannten Hochspannungsstecker die Steckerkralle in einer in das Silikonkautschukmaterial eingebetteten Montageplatte festgelegt, auf welcher das Anschlußende des Kabels und sonstige vorhandenen elektrischen Bauteile, wie z. B. ein Schutzwiderstand, zugentlastet aufmontiert sind. Die Montageplatte mit den elektrischen Bauteilen wird unter gleichzeitiger Ausbildung der Schutzkappe und ihres Einführstutzens mit dem Silikonkautschuk in einem Arbeitsgang umspritzt. Da jedoch das Vorhandensein der Montageplatte zu einer wuchtigeren Ausführung des Hochspannungssteckers führt, ist der Materialaufwand für das verhältnismäßig kostenaufwendige Silikonkautschukmaterial hoch.To at least alleviate this effect, 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. Then, however, a considerable tensile force acts on the plug claw, so that the plug claw must be well anchored in the protective cap and there is a risk that the connection between the plug claw and the line of the high-voltage cable is loaded. Therefore, in the known high-voltage connector, the plug claw is fixed in a mounting plate embedded in the silicone rubber material, on which the connecting end of the cable and other existing electrical components, such as, for. B. a protective resistor are mounted 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. However, since 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.

Wenn außerdem der Anpreßdruck der Schutzkappe groß sein soll, um deren möglichst großflächiges und enges Anschmiegen gegen die Bildröhrenwand zu erreichen, muß die hierzu erforderliche Kraft über die Schutzkappenwand bis zu deren Außenrand übertragen werden. Je höher der Anpreßdruck sein soll, umso höher muß die Steifigkeit der Schutzkappenwand sein. Eine entsprechend steifere Schutzkappe führt aber zur Vergrößerung der Wandstärke der Kappenwand, was seinerseits einen höheren Materialaufwand bedingt. Es ist auch bekannt, die Schutzkappenwand mittels radial verlaufender Innen- und Außenrippen zu versteifen (DE-A-28 17 105). Bei diesem bekannten Hochspannungsstecker mit einer Schutzkappe aus Silikonkautschukmaterial ist an der Innenseite der Schutzkappe zwischen demjenigen an den Schutzkappenrand angrenzenden ringförmigen Kappenabschnitt, welcher gegen die Bildröhrenwand angeschmiegt werden soll, und der Steckerkralle eine im Querschnitt kreisabschnittsförmige flache Ringnut ausgebildet, die von den Innenrippen durchkreuzt wird.If, in addition, the contact pressure of the protective cap is to be high in order to achieve the largest possible and most snug 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, however, 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). In this known high-voltage plug with a protective cap made of silicone rubber material, on the inside of the protective cap between the ring-shaped cap section adjoining the protective cap edge, which is to be nestled against the picture tube wall, and the plug claw, a flat annular groove with a circular cross-section is formed, which is crossed by the inner ribs.

Durch die Erfindung wird die Aufgabe gelöst, einen Hochspannungsstecker der eingangs erwähnten Art so auszubilden, daß ein hochspannungsfestes Andrücken der Schutzkappe gegen die Bildröhrenwand bei gleichwohl geringem Materialaufwand für das Silikonkautschukmaterial erzielt wird.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.

Dies wird gemäß der Erfindung dadurch erreicht, daß am freien Rand der Schutzkappe eine Dichtlippe vorsteht, von der eine flache Ringnut an der Innenseite des Schutzkappenrandes begrenzt ist.This is achieved according to the invention in that 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.

Durch die Ausbildung der flachen, eine mehrfach größere Weite als Tiefe aufweisenden Ringnut an der Innenseite des Kappenrandes entsteht im Anschluß an den sich an die Bildröhrenwand anschmiegenden Bereich der Kappeninnenfläche eine Freistrecke. Durch diese Freistrecke wird dieser Anschmiegbereich der Schutzkappe hinsichtlich der Kapillarwirkung, die in ihm aus eingangs erwähnten Gründen beim Vorhandensein von Feuchtigkeit auftreten kann, wirkungsmäßig vom Umfangsrand der Schutzkappe getrennt. Die Dichtlippe dient einerseits dazu, diese Freistrecke durch die Abstützung der Dichtlippe an der Bildröhrenwand aufrechtzuerhalten und andererseits dazu, diese Freistrecke gegen Staub- und Feuchtigkeitseintritt zu schützen und daher den Feuchtigkeitszutritt zu dem Anschmiegbereich der Schutzkappe zu verhindern. Durch die Ausbildung der Freistrecke ist somit letztlich die Gefahr elektrischer Durchschläge wenigstens vermindert.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. As a result of this free stretch, 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 route is ultimately the At least the risk of electrical breakdown is reduced.

Als Folge können der Anpreßdruck, mit welchem die Schutzkappe in dem Anschmiegbereich gegen die Bildröhre gedrückt wird, und daher die Wandstärke der Kappe verringert werden, wodurch der Materialaufwand für das Silikonkautschukmaterial reduziert wird. Durch die Verringerung des Anpreßdruckes wird auch die für das Anpressen des Hochspannungssteckers gegen die Bildröhrenwand erforderliche Zugkraft reduziert, die auf die Steckerkralle wirkt, wodurch es gelingt, eine gute Verankerung der Steckerkralle im Silikonkautschukmaterial ohne raumaufwendige Montageplatte in dem Hochspannungsstecker zu erreichen und den Materialaufwand für das Silikonkautschukmaterial weiter zu senken.As a result, 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. By reducing the contact pressure, 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.

Vorzugsweise ist an der Außenseite des Schutzkappenrandes ein die Ringnut überdeckender Ringbund ausgebildet, so daß dieser Teil der Kappenwand, der durch die Ausbildung der Ringnut an der Innenseite geschwächt ist, durch die Ausbildung des Ringbundes nach außen verstärkt ist und ein Einfallen der Freistrecke verhindert ist.Preferably, an 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.

Es ist an sich bekannt, an der Innenseite des Kappenrandes der Schutzkappe eines Bildröhren-Hochspannungssteckers einen durchgehenden Ringraum auszubilden (DE-A-28 09 186). Dies wird dadurch erreicht, daß an der Innenseite der Kappe ein vorstehender Ringbund vorgesehen ist. Daher ist es nicht möglich, die Kappe mit ihrer Innenfläche über einen größeren Bereich hin gegen die Bildröhrenwand anzuschmiegen, weil dies von dem Ringbund verhindert wird. Deshalb ist der beim Aufsetzen des bekannten Hochspannungssteckers auf die Bildröhre gebildete Ringraum nicht mit der erfindungsgemäß vorgesehenen Freistrecke als Umgrenzung desjenigen Innenflächenbereichs der Schutzkappe vergleichbar, mit welchem diese gegen die Bildröhrenwand angeschmiegt wird.It is known per se to form a continuous annular space on the inside of the cap edge of the protective cap of a picture tube high-voltage connector (DE-A - 28 09 186). This is achieved in that a projecting ring collar is provided on the inside of the cap. It is therefore not possible to nestle the inner surface of the cap against the picture tube wall over a larger area, because this is prevented by the ring collar. Therefore, the annular space formed when the known high-voltage plug is placed on the picture tube cannot be compared with the free path provided according to the invention as the boundary of the inner surface area of the protective cap with which it is nestled against the picture tube wall.

Zur Verbesserung der Verankerung der Steckerkralle in dem Kappenboden wird es bevorzugt, die Steckerkralle mit einem im Winkel zu der Kappenachse verlaufenden Schaftteil ihres Krallenschaftes in oder an dem Kappenmaterial gegen das Krallenende hin abzustützen. Hierdurch kann eine gute Verankerung der Steckerkralle bei gleichwohl geringem Materialaufwand für das Silikonkautschukmaterial erzielt werden. Aus den gleichen Gründen ist der Krallenschaft bevorzugt annähernd U-förmig ausgebildet und verläuft mit seinem zu dem Anschlußende der Leitung des Hochspannungskabels führenden U-Schenkel an der dem Kappenrand abgewendeten Seite des Hochspannungskabels entlang.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 at 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. For the same reasons, 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.

Der erfindungsgemäße Hochspannungsstecker kann als Verbundgußteil ausgebildet sein, bei dem das Kabelende und der Krallenschaft vollständig in das Silikonmaterial eingebettet sind. Bei dieser Ausführungsform wird das Kabelende und die bereits an die Leitung des Hochspannungskabels angeschlossene Steckerkralle unter gleichzeitiger Ausbildung der Schutzkappe und deren Einführstutzens in einem Arbeitsgang mit dem Silikonkautschukmaterial umspritzt oder umgossen. Dadurch sind bei dieser Ausführungsform gleichzeitig eine gute Verankerung der Steckerkralle in dem Silikonkautschukmaterial, das feuchtigkeitsdichte Anliegen der Einführstutzenwand an dem Hochspannungskabel und dessen gute Zugentlastung gewährleistet.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. In this embodiment, the end of the cable and the connector claw already connected to the line of the high-voltage cable are overmolded or cast in one operation with the silicone rubber material, while simultaneously forming the protective cap and its insertion piece. 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 insertion pipe wall with the high-voltage cable and its good strain relief.

Die Schutzkappe mit dem Einführstutzen kann jedoch auch gesondert im Spritzgießverfahren hergestellt werden und erst nachträglich mit der Steckerkralle und dem Kabel ausgestattet werden. Bei dieser Ausführungsform wird es bevorzugt, daß rings der Steckerkralle in dem Kappenmaterial ein Hohlraum ausgespart ist, der an der dem Kappenrand zugewendeten Seite des Hochspannungskabels von einem aus dem Kappenmaterial bestehenden Steg oder Ansatz teilweise begrenzt ist, an dem das Ende des Hochspannungskabels und der im spitzen Winkel zu der Kappenachse verlaufende Schaftteil des Krallenschaftes abgestützt sind. Dieser Hohlraum wird nach dem Einbringen der Kralle und des Kabelendes mit einem schnellhärtenden Einkomponenten-Silikonkautschuk-Vergußmaterial zur Fixierung der Steckerkralle, Abdichtung des Kabelendes gegen den Kappeninnenraum hin und Ausbildung der Zugentlastung des Kabels ausgefüllt.However, 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. In this embodiment, it is preferred that a cavity is cut out 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 acute angle to the cap axis extending shaft part of the claw shaft are supported. After the claw and the cable end have been introduced, 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.

In Weiterbildung dieser Ausführungsform wird eine zusätzliche Verbesserung der Verankerung des Steckerkralle dadurch erreicht, daß das mit der Leitung des Hochspannungskabels verbundene Anschlußende des Krallenschaftes gegen das Krallenende hin an einem in den Hohlraum vorstehenden Vorsprung aus dem Kappenmaterial abgestützt ist.In a further development of this embodiment, 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 protruding into the cavity.

Zur weiteren Verbesserung der Feuchtigkeitsdichtung zwischen der Einführstutzenwand und dem Kabel bei der Ausführungsform, bei welcher die vorgefertigte Schutzkappe nachträglich mit der Steckerkralle und dem Kabel ausgestattet wird, kann am freien Ende des Einführstutzens ein am Umfang des Hochspannungskabels anliegender Innenbund ausgebildet sein, wohingegen über den restlichen Teil der Stutzeninnenfläche hin zwischen derselben und dem Hochspannungskabel ein Ringspalt ausgebildet ist, der in den Hohlraum mündet, so daß durch das Füllen des Hohlraumes auch der Ringspalt mit dem Silikonkautschuk-Vergußmaterial ausgefüllt wird, durch welches der Einführstutzen mit dem Hochspannungskabel dicht verbunden wird.In order to further improve the moisture seal between the inlet connector wall and the cable in the embodiment in which the prefabricated protective cap is subsequently equipped with the plug claw and the cable, an inner collar which lies against 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.

Durch die Erfindung kann gegenüber herkömmlichen Hochspannungssteckern eine erhebliche Reduzierung des Gewichtes und des Silikonkautschukmaterialbedarfs bei gleichwohl guter Verankerung der Steckerkralle, guter Zugentlastung des Hochspannungskabels, guter Abdichtung des Kappeninnenraums gegen das Hochspannungskabel hin und weitgehend hochspannungsfester Abdichtung des Hochspannungsanschlusses an der Bildröhre erreicht werden.Compared to conventional high-voltage plugs, the invention can nevertheless significantly reduce the weight and the silicone rubber material requirement good anchoring of the connector 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.

Die Erfindung wird anhand von bevorzugten Ausführungsformen erläutert, die in ihren Einzelheiten aus der Zeichnung ersichtlich sind. In der Zeichnung zeigt:

  • Fig. 1 eine erste Ausführungsform eines Hochspannungssteckers gemäß der Erfindung im Schnitt,
  • Fig. 2 den Hochspannungsstecker aus Fig. 1 in der Einbaulage an der Bildröhre im Schnitt,
  • Fig. 3 eine zweite Ausführungsform eines erfindungsgemäßen Hochspannungssteckers im Schnitt und
  • Fig. 4 den Hochspannungsstecker aus Fig. 3 im Schnitt in seiner Einbaulage an der Bildröhre.
The invention is explained on the basis of preferred embodiments, the details of which can be seen from the drawing. The drawing shows:
  • 1 shows a first embodiment of a high-voltage connector according to the invention in section,
  • 2 shows the high-voltage plug from FIG. 1 in the installed position on the picture tube in section,
  • Fig. 3 shows a second embodiment of a high-voltage connector according to the invention in section and
  • Fig. 4 shows the high-voltage connector of Fig. 3 in section in its installed position on the picture tube.

Die Hochspannungsstecker aus den Fig. 1 und 3 weisen jeweils rings einer Steckerkralle 4 eine Schutzkappe 5 mit seitlichem Einführstutzen 6 für das Hochspannungskabel 3 auf, an dessen Leitung 2 die Steckerkralle 4 mit dem Anschlußende 15 ihres Krallenschaftes 10, 11 angelötet ist.The high-voltage connector from FIGS. 1 and 3 each have a protective claw 5 with a lateral insertion connector 6 for the high-voltage cable 3 around a connector claw 4, on the line 2 of which the connector claw 4 is soldered to the connection end 15 of its claw shank 10, 11.

Die Schutzkappe 5 besteht mit ihrem Einführstutzen 6 aus einem Silikonkautschukmaterial und ist bei den gezeigten Ausführungsformen aus einem Zweikomponenten-Flüssigkeitssilikonkautschuk im Spritzgießverfahren hergestellt.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.

Der Kappenmantel 21 der Schutzkappe 5 verläuft kegelförmig mit einem Öffnungswinkel von etwa 120° bei der Ausführungsform aus Fig. 1, und mit einem Öffnungswinkel von etwa 95° bei der Ausführungsform aus Fig. 3.The cap jacket 21 of the protective cap 5 runs conically 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.

Wie aus den Fig. 1 und 3 ersichtlich, ist an dem an den freien Kappenrand angrenzenden Endabschnitt des Kappenmantels 21 an deren Innenseite eine flache Ringnut 8 mehrfach größerer Weite denn Tiefe ausgebildet. Die entlang des Umfangsrandes des Kappenmantels 21 durchgehende Ringnut ist an der Außenseite des Kappenmantels 21 von einem Ringbund 9 überdeckt und am freien Kappenrand von einer axial der Kappe vorstehenden Dichtlippe 7 begrenzt.As can be seen from FIGS. 1 and 3, on the inside of the end section of the cap jacket 21 which adjoins the free edge of the cap, a flat annular groove 8 is formed which is several times larger than depth. The continuous annular groove 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 is delimited on the free cap edge by a sealing lip 7 projecting axially from the cap.

Dadurch entsteht, wie aus den Fig. 2 und 4 ersichtlich, in der Einbaulage des Hochspannungssteckers, in welcher die Steckerkralle 4 mit der Kontaktbuchse 22 der Bildröhre 1 verhakt ist, rings des unter dem Zug der Steckerkralle 4 gegen die Bildröhre 1 angeschmiegten glattflächigen Bereichs des Kappenmantels 21 eine von der Ringnut 8 ausgebildete Freistrecke, durch welche Hochspannungsüberschläge vermindert sind, obwohl die Außenfläche der Bildröhre 1 aufgerauht ist und daher dort ein zuverlässig dichtes Anliegen des Kappenmantels 21 nicht immer gewährleistet ist. Die Dichtlippe bewirkt einerseits, daß diese aus der Ringnut 8 gebildete Freistrecke aufrechterhalten bleibt und dient andererseits als linienförmig aufliegende Dichtung zur Verhinderung des Staub- und Feuchtigkeitseintrittes. Der Ringbund 9 trägt dazu bei, daß der durch die Ausbildung der Ringnut 8 an der Innenseite geschwächte Rand des Kappenmantels 21 nicht einfällt und dadurch die Ausbildung der Freistrecke in der Einbaulage des Hochspannungssteckers verhindert.This results, as can be seen from FIGS. 2 and 4, in the installed position of the high-voltage plug, in which the plug claw 4 is hooked with the contact socket 22 of the picture tube 1, around the smooth-surface area of the picture tube 1 which is nestled under the pull of the plug claw 4 Cap jacket 21 a free path formed by the annular groove 8, through which high voltage flashovers are reduced, although the outer surface of the picture tube 1 is roughened and therefore a reliably tight fit of the cap jacket 21 is not always guaranteed. The sealing lip on the one hand ensures that this free path formed from the annular groove 8 is maintained and on the other hand serves as a linear seal to prevent the entry of dust and moisture. The annular collar 9 contributes to the fact that the edge of the cap jacket 21 weakened by the formation of the annular groove 8 on the inside does not collapse and thereby prevents the formation of the free path in the installed position of the high-voltage plug.

Die Steckerkralle 4 ist mit ihrem Krallenschaft 10, 11 zusammen mit dem Ende des Hochspannungskabels 3 im materialverstärkten Kappenboden 19 gegen die auf die Steckerkralle 4 in der Einbaulage wirkende Zugkraft entlastet verankert. Hierzu ist rings der Steckerkralle 4 in Verlängerung des Innenraumes des Kabeleinführstutzens 6 im Kappenboden 19 ein Hohlraum 12 ausgespart, der zum Kappeninneren hin von einem Steg 13, der aus der Achse der Schutzkappe 5 heraus zu dem Einführstutzen 6 hin versetzt angeordnet ist, aus dem Kappenmaterial überbrückt ist. Auf dem Steg liegt das in den Hohlraum über den Steg 13 hinausragende Hochspannungskabel 3 auf und an oder in dem Steg ist der Krallenschaft 10, 11 der Steckerkralle 4 mit einem im spitzen Winkel im Bereich von 45° zur Kappenachse verlaufenden Schaftteil 10 an dessen zu dem Kappeninneren hinweisenden Seite abgestützt.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. For this purpose, 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. On the web, 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.

Die Steckerkralle 4 ist aus einem U-förmigen Bügel gebogen, dessen Bügelschenkel den Krallenschaft 10, 11 und mit ihren hakenförmig abgewinkelten freien Enden das Krallenende der Steckerkralle ausbilden. In der in der Zeichnung gezeigten Seitenansicht der Steckerkralle 4 ist deren Krallenschaft 10, 11 annähernd U-förmig ausgebildet. Von dem hakenförmigen Krallenende der Steckerkralle 4 aus verläuft der im Winkel zu der Kappenachse angestellte, auf dem Steg 13 abgestützte Schaftteil 10 von dem freien Kabelende und von der Kappenachse weg und geht dann über einen Bogenteil 20 in den U-Schenkel 11 über, der an der dem Kappenrand abgewendeten Seite des Hochspannungskabels 3 zu dessen freien Ende hin verläuft und dort im U-Scheitel des U-förmigen Bügels in einem Querbogenstück endet, von welchem das Anschlußende 15 des Krallenschaftes 10, 11 ausgebildet ist. In dieses Querbogenstück ist die vorstehende Leitung 2 des Hochspannungskabels 3 eingelegt und dort verlötet.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. In the side view of the plug claw 4 shown in the drawing, its claw shaft 10, 11 is approximately U-shaped. From the hook-shaped claw end of the plug claw 4, 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.

Bei der Ausführungsform aus Fig. 1 sind in dem Steg 13 zwei von dessen Rand in Richtung zu dem Einführstutzen 6 hin verlaufende Schlitze ausgebildet (nicht gezeigt), in welche die beiden Bügelschenkel der mit der Leitung 2 des Hochspannungskabels 3 bereits verlöteten Steckerkralle 4 bei deren Einsetzen in den Hohlraum 12 der Schutzkappe 5 eingefädelt werden, bis sie mit ihrem im spitzen Winkel zu der Kappenachse verlaufenden Schaftteil 10 zu dessen Abstützung an dem Steg 13 am Schlitzgrund anliegen und die Steckerkralle 4 in die aus Fig. 1 ersichtliche Lage gebracht ist.In the embodiment from FIG. 1, two slots (not shown) 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.

Der Hohlraum 12 wird nach dem Einsetzen der Steckerkralle 4 zur Fixierung des Krallenschaftes 10, 11 mit einem schnellhärtenden Einkomponenten-Silikonkautschuk-Vergußmaterial 14 ausgefüllt, durch welches außerdem die vollständige Abdichtung des Kabelendes und des Innenraums des Einführstutzens 6 gegen das Kappeninnere hin bewirkt ist. Bei der Ausführungsform aus Fig. 1 ist zur zusätzlichen Verbesserung der Abdichtung des Hochspannungskabels am freien Ende des Einführstutzens 6 ein Innenbund 17 ausgebildet, der elastisch am Umfang des Hochspannungskabels 3 anliegt und einen Ringspalt 18 zwischen dem restliche Teil der Innenseite des Einführstutzens 6 und dem Hochsparnungskabel 3 nach außen hin abschließt. Dieser Ringspalt 18 mündet in den Hohlraum 12 rings der Steckerkralle und ist wie dieser mit durch ein Durchgangsloch 23 in dem Steg 13 eingespritztem Silikonkautschuk-Vergußmaterial ausgefüllt.The cavity 12 is after the insertion of the Plug claw 4 for fixing the claw shaft 10, 11 filled with a quick-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. In the embodiment from FIG. 1, to further improve the sealing of the high-voltage cable at the free end of the inlet connector 6, 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.

Zur zusätzlichen Abstützung der Steckerkralle 4 ist bei der Ausführungsform aus Fig. 1 an der dem Einführstutzen 6 abgewendeten Seite des Hohlraums 12 ein in diesen hineinragender Vorsprung 16 ausgebildet, auf welchem das Anschlußende 15 des Krallenschaftes abgestützt aufliegt.For additional support of the plug claw 4, in the embodiment from FIG. 1, on the side of the cavity 12 facing away from the insertion port 6, a projection 16 protruding into it is formed, on which the connection end 15 of the claw shaft rests.

Claims (8)

1. High voltage plug for a picture tube (1), at which a plug claw (4) connected to the lead (2) of a high voltage cable (3) is surrounded by a flexible protective cap (5) from silicone caoutchouc material, which protective cap can be areally joined closely against the picture tube (1) by engaging the plug claw (4) into the contact bush (22) of the picture tube (1), and it has an entrance stud (6) through which the high voltage cable (3) extends in a moisture-tight manner, characaterized in that there is a sealing lip (7) protruding at the free edge of the protective cap (5) and a flat ring groove (8) is bordered by the sealing lip (7) at the inside of the edge of the protective cap.
2. High voltage plug according to claim 1, characterized in that a ring bulge (9) overlapping the ring groove (8) is arranged at the outside of the edge of the protective cap.
3.High voltage plug according to claim 1 or 2, characterized in that the plug claw (4) is supported in or on the cap material towards the claw end with a shaft part (10) of the claw shaft (10,11) of the plug claw running in an angle to the cap axis.
4. High voltage plug according to claim 3 characterized in the formation as joint casting part at which the cable end and the claw shaft (10, 11) are completely embedded in the silicone caoutchouc material.
5. High voltage cable according to claim 3 or 4 characterized in that the claw shaft (10, 11) is formed nearly U-shaped and it runs with its U-Ieg (11) leading to the connection end of the lead (2) of the high voltage cable (3) along the side of the high voltage cable (3) opposite the cap edge.
6. High voltage plug according to claim 3, characterized in that a hollow space (12) is recessed around the plug claw (4) in the cap material, this hollow space (12) is bordered by a web (13) or extension consisting of the cap material at the side of the high voltage cable (3) adjacent to the cap edge, at the web or extension (13) the end of the high voltage cable (3) and the shaft part (10) of the claw shaft running in an acute angle to the cap axis are supported, and that the hollow space (12) is filled with silicone caoutchouc casting material (14).
7. High voltage plug according to claims 5 and 6, characterized in that the claw shaft's (10, 11) connection end (15) connected with the lead (2) of the high voltage cable (3) is supported against the claw end to a protection (16) made from the cap material, protruding in the hollow space (12).
8. High voltage plug according to claim 6 or 7, characterized in that at the free end of the entrance stud (6) an inside collar (17) contacting the peripheral surface of the high voltage cable (3), is formed and a ring gap (18) is formed along the other part of the stud inside surface between this inside surface and the high voltage cable (3), this ring gap (18) opens into the hollow space (12) and is filled with silicone caoutchouc casting material (14).
EP84108942A 1983-08-03 1984-07-27 High-voltage plug for a picture tube Expired EP0133676B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3328033 1983-08-03
DE3328033A DE3328033C2 (en) 1983-08-03 1983-08-03 High voltage plug for a picture tube

Publications (2)

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

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ID=6205678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108942A Expired EP0133676B1 (en) 1983-08-03 1984-07-27 High-voltage plug for a picture tube

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EP (1) EP0133676B1 (en)
DE (2) DE3328033C2 (en)

Families Citing this family (4)

* 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
DE8702252U1 (en) * 1987-02-13 1987-06-25 Roederstein Spezialfabriken für Bauelemente der Elektronik und Kondensatoren der Starkstromtechnik GmbH, 8300 Landshut High voltage component
FR2751581B1 (en) * 1996-07-26 1998-10-09 Connectic Metallo METHOD FOR OVER-MOLDING A SILICONE PART ON AN ELONGATED ELEMENT AND HIGH-VOLTAGE CONNECTION DEVICE OBTAINED BY THIS PROCESS

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120029B (en) * 1960-11-11 1961-12-21 Rudolf Beilschmidt Process for the production of a picture tube high-voltage connector and device for carrying out this process
GB1246740A (en) * 1968-12-27 1971-09-15 Sony Corp Color picture tube
DE2008516A1 (en) * 1970-02-24 1971-09-09 Beilschmidt R Snow sling impeller
DE7147195U (en) * 1971-12-15 1972-03-30 Keune & Lauber Ohg HIGH VOLTAGE-PROOF CONNECTOR FOR TUBES
DE2402241C3 (en) * 1974-01-17 1978-06-22 Ernst Roederstein Spezialfabrik Fuer Kondensatoren Gmbh, 8300 Landshut Connector for an electrical cable, in particular for high-voltage cables
DE2507546A1 (en) * 1975-02-21 1976-09-02 Klar & Beilschmidt Fabrik Picture tube high voltage plug - has suction pad made of elastic insulating material fitted with contact pin in its centre
DE7512611U (en) * 1975-04-19 1975-08-21 Keune & Lauber Ohg Picture tube high voltage connector
DE2858073C2 (en) * 1977-04-19 1985-12-12 Blasius Industries Inc., Clifton, N.J. High-voltage plug with insulating protective cap for cathode ray tubes
DE2809186A1 (en) * 1978-03-03 1979-09-13 Huengerle Kg Elektro App Fab Bell-shaped protective cap HV plug connector - has protruding, peripheral ring on cap inner wall forming several suction chambers on application
DE8205618U1 (en) * 1982-03-01 1982-07-29 Keune & Lauber GmbH, 5920 Bad Berleburg Picture tube high voltage connector

Also Published As

Publication number Publication date
DE3468779D1 (en) 1988-02-18
DE3328033C2 (en) 1985-07-25
DE3328033A1 (en) 1985-02-14
EP0133676A1 (en) 1985-03-06

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