EP0028946B1 - Connector for a cathode ray tube - Google Patents

Connector for a cathode ray tube Download PDF

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Publication number
EP0028946B1
EP0028946B1 EP19800401115 EP80401115A EP0028946B1 EP 0028946 B1 EP0028946 B1 EP 0028946B1 EP 19800401115 EP19800401115 EP 19800401115 EP 80401115 A EP80401115 A EP 80401115A EP 0028946 B1 EP0028946 B1 EP 0028946B1
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EP
European Patent Office
Prior art keywords
connector
discharger
forming
tube
housings
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
EP19800401115
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German (de)
French (fr)
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EP0028946A2 (en
EP0028946A3 (en
Inventor
Daniel Cassan
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.)
Francaise Metallo SA Ste
Francaise Metallo Ste SA
Original Assignee
Francaise Metallo SA Ste
Francaise Metallo Ste SA
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 Francaise Metallo SA Ste, Francaise Metallo Ste SA filed Critical Francaise Metallo SA Ste
Publication of EP0028946A2 publication Critical patent/EP0028946A2/en
Publication of EP0028946A3 publication Critical patent/EP0028946A3/en
Application granted granted Critical
Publication of EP0028946B1 publication Critical patent/EP0028946B1/en
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/08—Overvoltage arresters using spark gaps structurally associated with protected apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/945—Holders with built-in electrical component

Definitions

  • the present invention relates to a connector for cathode ray tube, mainly intended for color television receivers.
  • This type of connector is intended to ensure respectively the electrical connections between the different circuits connected to the printed circuit board and the elements included in the tube, cathodes for red, blue, green functions, grids 1 and 2, filaments 1 and 2.
  • the connector is constituted by a molded insulating part, in the general shape of a ring, inside which are arranged, insulated from each other by longitudinal grooves, or in cells, the conductive parts provided for be in contact with the tube pins.
  • the protection sought is obtained by means of spark gaps independent of the ring or provided directly in or on the printed circuit concerned.
  • the connector is constituted by a part forming a housing, in which are included both the contact parts and their corresponding spark gaps, suitably insulated and arranged so as to provide the required connections and the desired protection.
  • a connector is described in document DE-A-27 27 230.
  • the subject of the present invention is a connector with incorporated spark gaps constituting an improvement made to the connectors of the first type mentioned above, and the manufacture of which is simplified, the cost reduced and the bulk reduced compared to the connectors of the second type indicated above.
  • a belt is provided on the outer wall of the ring constituting the connector, including housings open at their two ends and intended to receive the different spark gaps and their common mass.
  • spark gaps can be of the type obtained by molding a continuous strip of a suitable conductive material, suitably perforated from which they are then mechanically and simultaneously detached. The necessary spacing, depending on the voltage, is made for each spark gap by cutting, simultaneously eliminating unnecessary parts of the strip.
  • the ring can also be provided at its periphery with a boss forming a housing provided for receiving the pin of the focusing grid G3 as well as the contact means intended to connect the latter to the corresponding supply circuit, this arrangement being possible when the pin of the grid G3 is sufficiently distant from the other nearest pins.
  • the reference 1 designates the body of the connector made of molded insulating material, generally in the form of an oblong ring, inside which the conductive parts are arranged in contact with the pins of the cathode-ray tube. These parts, known in themselves, are shown in FIG. 2.
  • Reference 2 designates a part molded around the ring and which includes the housing provided for the different spark gaps.
  • these are constituted in the following manner: the metal strip 3 integral with the different parts 4 connects to the ground the spark gaps proper constituted respectively by the free ends opposite the parts 4 and 5 (visible in FIG. 3 ) kept at the very short distance required by the overmolded insulating part 6.
  • the opposite end of the parts 5 is provided to penetrate the printed circuit connection board, through a hole provided for this purpose, and jointly with a contact piece ensuring the electrical connection with the corresponding pin of the cathode ray tube.
  • the reference 7 designates ribs which the part 2 is provided to form the different housings of the spark gaps.
  • Reference 8 designates an eccentric part of the ring intended to house a part corresponding eccentric of the base of the tube, the latter itself constituting housing for the focus connector.
  • the reference 9 designates an additional polarizing means of the ring relative to the base of the tube, further having the function of ensuring perfect isolation of the contact parts which are contiguous to it.
  • the reference 10 designates means for attaching the connector to the printed circuit connection card.
  • These attachment means in the form of a double harpoon, constitute a polarizing means intended to avoid any error during the positioning on the printed card.
  • they ensure the good behavior of the connector on the printed card during the soldering operation in the bath, or later, in the event of disassembly of the printed card with respect to the tube.
  • the means 10 are arranged on the eccentric part 8 of the ring 1, but they could of course be arranged at other points.
  • FIG. 3 represents an enlarged view, in profile, of the arrangement of a contact and of the associated spark gap forming part of the set of spark gaps set up simultaneously in their respective housings where they are held by snap-fastening.
  • the shapes adopted for the overmolded parts 6 surrounding the spark gaps are provided so that after fitting the spark gap, a sufficient seal is obtained to protect from the penetration of dust and, to a certain extent, runoff, without however, prevent the evacuation of the ozone released by the operation of the spark gap, for which small side vents are provided 11.
  • FIG. 3 represents in isolation, in section, in enlarged detail view, a contact part. and its associated spark gap.
  • Each piece 6 of insulating material molded onto the corresponding conductive part 4 forms in 6a and 6b respectively two projections relative to the housing which is intended for it in the belt 2 secured to the connector 1.
  • the installation is carried out by simultaneously inserting, in the direction of the arrow, the assembly constituted by the spark gaps.
  • the projection 6b forces the passage and comes to occupy the position shown in the figure.
  • each spark gap is immobilized in its housing where it is held in position, while the projection 6a forms a stop stop. It is obvious that one thus obtains by snap-in positioning and absolute maintenance in position.
  • the shape of the insulating parts 6 is designed to match those of the outer wall of the tube support connector 1 and that of the inner wall of the belt, respectively, the latter also having a slight taper in order to seal the surfaces in contact.
  • a connector is thus obtained making it possible to ensure all the connections required for such a tube, with maximum security.
  • FIGS. 4 and 5 the elements identical to those of FIGS. 1 and 3 have the same references as on the latter.
  • the reference 12 designates a contact means for one of the pins and its associated spark gap.
  • a perforated boss 21 in which is held in place a contact means such as a blade, penetrating through the end 22, while the pin connected to the grid G3 of the tube is inserted into this boss by the end 23.
  • the part 23 mechanically guides and in one direction the pin of the grid G3 in reaction with the force of application of the blade contact connecting the latter to the supply circuit.
  • the means of connection of the grid G3 to the supply circuit can either be a blade contact connected to the latter via a conductor with high insulation, with interposition of spark gap and independent resistors, as well as spark gap and resistance type connector incorporated.

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  • Prevention Of Electric Corrosion (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Description

La présente invention concerne un connecteur pour tube cathodique, principalement prévu pour les récepteurs de télévision en couleurs.The present invention relates to a connector for cathode ray tube, mainly intended for color television receivers.

Ce type de connecteur est destiné à assurer respectivement les liaisons électriques entre les différents circuits reliés à la carte imprimée et les éléments inclus dans le tube, cathodes pour fonctions rouge, bleue, verte, grilles 1 et 2, filaments 1 et 2.This type of connector is intended to ensure respectively the electrical connections between the different circuits connected to the printed circuit board and the elements included in the tube, cathodes for red, blue, green functions, grids 1 and 2, filaments 1 and 2.

On sait que les éléments précités inclus dans le tube doivent être protégés contre les surtensions. A cet effet, on adjoint à ces connecteurs des éclateurs indépendants ou intégrés, dont la décharge en cas de surtension assure la protection requise.It is known that the aforementioned elements included in the tube must be protected against overvoltages. To this end, independent or integrated spark gaps are added to these connectors, the discharge of which in the event of an overvoltage provides the required protection.

Il existe actuellement plusieurs types de connecteurs pour tubes cathodiques. On citera parmi ceux-ci deux types représentant deux techniques différentes.There are currently several types of connectors for cathode ray tubes. Among these are two types representing two different techniques.

Suivant le premier type, le connecteur est constitué par une pièce isolante moulée, en forme générale de bague, à l'intérieur de laquelle sont disposées, isolées les unes des autres par des cannelures longitudinales, ou dans des alvéoles, les piéces conductrices prévues pour être au contact des broches du tube. Dans ce cas, la protection recherchée est obtenue au moyen d'éclateurs indépendants de la bague ou prévus directement dans ou sur le circuit imprimé concerné.According to the first type, the connector is constituted by a molded insulating part, in the general shape of a ring, inside which are arranged, insulated from each other by longitudinal grooves, or in cells, the conductive parts provided for be in contact with the tube pins. In this case, the protection sought is obtained by means of spark gaps independent of the ring or provided directly in or on the printed circuit concerned.

Suivant un autre type, le connecteur est constitué par une pièce formant boîtier, dans lequel sont inclus à la fois les pièces de contact et leurs éclateurs correspondants, convenablement isolés et disposés de manière à assurer les liaisons requises et la protection recherchée. Un tel connecteur est décrit dans le document DE-A-27 27 230.According to another type, the connector is constituted by a part forming a housing, in which are included both the contact parts and their corresponding spark gaps, suitably insulated and arranged so as to provide the required connections and the desired protection. Such a connector is described in document DE-A-27 27 230.

La fabrication d'un tel connecteur est complexe; le montage des éclateurs à l'intérieur du boîtier est délicat, de plus le coût en est élevé et l'encombrement relativement important.The manufacture of such a connector is complex; mounting the spark gaps inside the housing is delicate, the cost is high and the size relatively large.

La présente invention a pour objet un connecteur à éclateurs incorporés constituant un perfectionnement apporté aux connecteurs du premier type précité, et dont la fabrication est simplifiée, le coût diminué et l'encombrement réduit par rapport aux connecteurs du second type indiqué ci-dessus.The subject of the present invention is a connector with incorporated spark gaps constituting an improvement made to the connectors of the first type mentioned above, and the manufacture of which is simplified, the cost reduced and the bulk reduced compared to the connectors of the second type indicated above.

A cet effet, sur la paroi extérieure de la bague constituant le connecteur est prévue une ceinture incluant des logements ouverts à leurs deux extrémités et destinés à recevoir les différents éclateurs et leur masse commune.To this end, a belt is provided on the outer wall of the ring constituting the connector, including housings open at their two ends and intended to receive the different spark gaps and their common mass.

Ces éclateurs peuvent être du type obtenu par surmoulage d'une bande continue d'un matériau conducteur approprié, convenablement ajourée dont ils sont ensuite détachés mécaniquement et simultanément. L'écartement nécessaire, fonction de la tension, est réalisé pour chaque éclateur par découpe, avec simultanément élimination des parties inutiles de la bande.These spark gaps can be of the type obtained by molding a continuous strip of a suitable conductive material, suitably perforated from which they are then mechanically and simultaneously detached. The necessary spacing, depending on the voltage, is made for each spark gap by cutting, simultaneously eliminating unnecessary parts of the strip.

Suivant une variante avantageuse, la bague peut en outre être pourvue à sa périphérie d'un bossage formant logement prévu pour recevoir la broche de la grille de focalisation G3 ainsi que le moyen contact destiné à relier cette dernière au circuit d'alimentation correspondant, cette disposition étant possible lorsque la broche de la grille G3 est suffisamment distante des autres broches les plus proches.According to an advantageous variant, the ring can also be provided at its periphery with a boss forming a housing provided for receiving the pin of the focusing grid G3 as well as the contact means intended to connect the latter to the corresponding supply circuit, this arrangement being possible when the pin of the grid G3 is sufficiently distant from the other nearest pins.

On décrira ci-après une forme de réalisation d'un connecteur suivant l'invention en se référant au dessin annexé donné à titre indicatif, dans lequel:

  • La figure 1 représente schématiquement en perspective un connecteur selon l'invention,
  • La figure 2 représente vu de dessous l'ensemble du connecteur avec pièces de contact et éclateurs associés,
  • La figure 3 représente de profil, en vue agrandie, la disposition d'une pièce de contact et de son éclateur associé,
  • Les figures 4 et 5 représentent respectivement en élévation coupe et en plan une variante suivant laquelle une disposition particulière est prévue pour le logement et la connexion de la broche reliée à la grille de focalisation G3.
An embodiment of a connector according to the invention will be described below with reference to the appended drawing given for information, in which:
  • FIG. 1 diagrammatically shows in perspective a connector according to the invention,
  • FIG. 2 represents seen from below the whole of the connector with associated contact parts and spark gaps,
  • FIG. 3 shows in profile, in enlarged view, the arrangement of a contact part and its associated spark gap,
  • Figures 4 and 5 show respectively in sectional elevation and in plan a variant according to which a particular provision is provided for the housing and the connection of the pin connected to the focusing grid G3.

Sur la figure 1, la référence 1 désigne le corps du connecteur en matière isolante moulée, en forme générale de bague oblongue, à l'intérieur de laquelle sont disposées les pièces conductrices au contact des broches du tube cathodique. Ces pièces connues en elles- mêmes sont représentées figure 2.In FIG. 1, the reference 1 designates the body of the connector made of molded insulating material, generally in the form of an oblong ring, inside which the conductive parts are arranged in contact with the pins of the cathode-ray tube. These parts, known in themselves, are shown in FIG. 2.

La référence 2 désigne une partie venue de moulage ceinturant la bague et qui inclut les logements prévus pour les différents éclateurs. Dans cet exemple, ceux-ci sont constitués de la manière suivante: la bande métallique 3 solidaire des différentes parties 4 relie à la masse les éclateurs proprement dits constitués respectivement par les extrémités libres en regard des parties 4 et 5 (visibles sur la figure 3) maintenues à la très faible distance requise par la pièce isolante surmoulée 6. L'extrémité opposée des parties 5 est prévue pour pénétrer dans la carte imprimée de liaison aux circuits, par un trou prévu à cet effet, et conjointement avec une pièce de contact assurant la liaison électrique avec la broche correspondante du tube cathodique.Reference 2 designates a part molded around the ring and which includes the housing provided for the different spark gaps. In this example, these are constituted in the following manner: the metal strip 3 integral with the different parts 4 connects to the ground the spark gaps proper constituted respectively by the free ends opposite the parts 4 and 5 (visible in FIG. 3 ) kept at the very short distance required by the overmolded insulating part 6. The opposite end of the parts 5 is provided to penetrate the printed circuit connection board, through a hole provided for this purpose, and jointly with a contact piece ensuring the electrical connection with the corresponding pin of the cathode ray tube.

La référence 7 désigne des nervures dont la pièce 2 est pourvue pour former les différentes logements des éclateurs.The reference 7 designates ribs which the part 2 is provided to form the different housings of the spark gaps.

La représentation donnée sur la figure est bien entendu schématique, l'espace libre entre les pièces 6 et les nervures 7 étant évidemment, dans la pratique, réduit de manière à permettre la mise en place requise mais sans jeu.The representation given in the figure is of course schematic, the free space between the parts 6 and the ribs 7 being obviously, in practice, reduced so as to allow the required positioning but without play.

La référence 8 designe une partie excentrée de la bague prévue pour loger une partie correspondante excentrée du culot du tube, cette dernière constituant elle-même logement pour le connecteur de focus.Reference 8 designates an eccentric part of the ring intended to house a part corresponding eccentric of the base of the tube, the latter itself constituting housing for the focus connector.

La référence 9 désigne un moyen détrompeur supplémentaire de la bague par rapport au culot du tube, ayant en outre pour fonction d'assurer l'isolement parfait des pièces de contact qui lui sont contigües.The reference 9 designates an additional polarizing means of the ring relative to the base of the tube, further having the function of ensuring perfect isolation of the contact parts which are contiguous to it.

La référence 10 désigne des moyens d'accrochage du connecteur sur la carte imprimée de liaison aux circuits. Ces moyens d'accrochage, en forme de double harpon, constituent un moyen détrompeur destiné à éviter toute erreur lors de la mise en place sur la carte imprimée. En outre, ils assurent la bonne tenue du connecteur sur la carte imprimée lors de l'opération de soudure au bain, ou ultérieurement, en cas de démontage de la carte imprimée par rapport au tube.The reference 10 designates means for attaching the connector to the printed circuit connection card. These attachment means, in the form of a double harpoon, constitute a polarizing means intended to avoid any error during the positioning on the printed card. In addition, they ensure the good behavior of the connector on the printed card during the soldering operation in the bath, or later, in the event of disassembly of the printed card with respect to the tube.

Dans l'exemple représenté les moyens 10 sont disposés sur la partie excentrée 8 de la bague 1, mais ils pourraient bien entendu être disposés en d'autres points.In the example shown the means 10 are arranged on the eccentric part 8 of the ring 1, but they could of course be arranged at other points.

La figure 3 représente un vue agrandie, de profil, de la disposition d'un contact et de l'éclateur associé faisant partie de l'ensemble des éclateurs mis en place simultanément dans leurs logements respectifs où ils sont maintenus par encliquetage.FIG. 3 represents an enlarged view, in profile, of the arrangement of a contact and of the associated spark gap forming part of the set of spark gaps set up simultaneously in their respective housings where they are held by snap-fastening.

Par glissement des extrémités de chacune des parties 5 des éclateurs respectivement le long des extrémités des piéces de contact correspondantes (comme représenté sur la figure 3), on obtient une superposition de ces pièces deux à deux suffisante pour que lors de la mise en place dans les trous prévus à cet effet dans la carte imprimée, la solidarisation par soudure des dites pièces avec la carte puisse être effectuée en une seule opération.By sliding the ends of each of the parts 5 of the spark gaps respectively along the ends of the corresponding contact parts (as shown in FIG. 3), one obtains a superposition of these parts two by two sufficient so that during the positioning in the holes provided for this purpose in the printed card, the joining by welding of said parts with the card can be carried out in a single operation.

Les formes adoptées pour les parties surmoulées 6 entourant les éclateurs sont prévues de telle sorte qu'après mise en place de l'éclateur on obtienne une étanchéité suffisante pour protéger de la pénétration de la poussière et, dans une certaine mesure, du ruissellement, sans toutefois empêcher l'évacuation de l'ozone dégagé par le fonctionnement de l'éclateur, pour laquelle sont prévues de petites ouies latérales 11.The shapes adopted for the overmolded parts 6 surrounding the spark gaps are provided so that after fitting the spark gap, a sufficient seal is obtained to protect from the penetration of dust and, to a certain extent, runoff, without however, prevent the evacuation of the ozone released by the operation of the spark gap, for which small side vents are provided 11.

Pour décrire avec précision comment sont obtenus la mise en place et le maintien en position de l'ensemble des éclateurs, il convient de se référer à la figure 3, laquelle représente isolément, en coupe, en vue agrandie de détail, un pièce de contact et son éclateur associé.To describe precisely how the installation and holding in position of the spark gap assembly are obtained, reference should be made to FIG. 3, which represents in isolation, in section, in enlarged detail view, a contact part. and its associated spark gap.

Chaque pièce 6 en matière isolante surmoulée sur la partie conductrice correspondante 4 forme en 6a et en 6b respectivement deux saillies relativement au logement qui lui est destiné dans la ceinture 2 solidaire du connecteur 1.Each piece 6 of insulating material molded onto the corresponding conductive part 4 forms in 6a and 6b respectively two projections relative to the housing which is intended for it in the belt 2 secured to the connector 1.

La mise en place s'effectue en insérant simultanément, dans le sens de la flèche, l'ensemble constitué par les éclateurs. Pour chacun de ces derniers, au moment de l'insertion, la saillie 6b force le passage et vient occuper la position représentée sur la figure. Dans ces conditions, une fois mis en place, chaque éclateur est immobilisé dans son logement où il est maintenu en position, tandis que la saillie 6a forme butée d'arrêt. Il est évident qu'on obtient ainsi par encliquetage une mise en place et un maintien absolu en position.The installation is carried out by simultaneously inserting, in the direction of the arrow, the assembly constituted by the spark gaps. For each of these, at the time of insertion, the projection 6b forces the passage and comes to occupy the position shown in the figure. Under these conditions, once in place, each spark gap is immobilized in its housing where it is held in position, while the projection 6a forms a stop stop. It is obvious that one thus obtains by snap-in positioning and absolute maintenance in position.

On notera d'autre part que la forme des pièces isolantes 6 est prévue pour épouser respectivement celles de la paroi extérieure du connecteur support de tube 1 et celle de la paroi intérieure de la ceinture, cette dernière présentant en outre un légère conicité afin d'assurer l'étancheité des surfaces en contact.On the other hand, it will be noted that the shape of the insulating parts 6 is designed to match those of the outer wall of the tube support connector 1 and that of the inner wall of the belt, respectively, the latter also having a slight taper in order to seal the surfaces in contact.

On décrira maintenant la variante prévue pour le logement de la grille G3 illustrée par les figures 4 et 5.We will now describe the variant provided for housing the grid G3 illustrated in FIGS. 4 and 5.

Suivant cette variante, il est possible d'inclure également dans le connecteur le moyen de connexion de la grille G3 au circuit d'alimentation correspondant lorsque la broche reliée à cette dernière est suffisamment distante des autres broches les plus proches, comme c'est le cas par exemple pour certains culots de tubes.According to this variant, it is possible to also include in the connector the means of connection of the grid G3 to the corresponding supply circuit when the pin connected to the latter is sufficiently distant from the other nearest pins, as is the case for example for certain tube caps.

On obtient ainsi un connecteur permettant d'assurer toutes les connexions requises pour un tel tube, avec le maximum de sécurité.A connector is thus obtained making it possible to ensure all the connections required for such a tube, with maximum security.

Sur les figures 4 et 5, les éléments identiques à ceux des figures 1 et 3 portent les mêmes références que sur ces dernières.In FIGS. 4 and 5, the elements identical to those of FIGS. 1 and 3 have the same references as on the latter.

Sur la figure 4, la référence 12 désigne un moyen de contact pour l'une des broches et son éclateur associé.In FIG. 4, the reference 12 designates a contact means for one of the pins and its associated spark gap.

A la périphérie du connecteur 20 en matière isolante est prévu un bossage perforé 21 dans lequel est maintenu en place un moyen de contact tel qu'à lame, pénétrant par l'extrémité 22, tandis que la broche reliée à la grille G3 du tube est insérée dans ce bossage par l'extrémité 23. La partie 23 guide mécaniquement et dans un sens la broche de la grille G3 en réaction avec la force d'application du contact à lame reliant celle-ci au circuit d'alimentation.At the periphery of the connector 20 made of insulating material is provided a perforated boss 21 in which is held in place a contact means such as a blade, penetrating through the end 22, while the pin connected to the grid G3 of the tube is inserted into this boss by the end 23. The part 23 mechanically guides and in one direction the pin of the grid G3 in reaction with the force of application of the blade contact connecting the latter to the supply circuit.

Le moyen de connexion de la grille G3 au circuit d'alimentation peut aussi bien être un contact à lame relié à celui-ci par l'intermédiaire d'un conducteur à haut isolement, avec interposition d'éclateur et résistante indépendants, qu'un connecteur du type à éclateur et résistance incorporés.The means of connection of the grid G3 to the supply circuit can either be a blade contact connected to the latter via a conductor with high insulation, with interposition of spark gap and independent resistors, as well as spark gap and resistance type connector incorporated.

Claims (3)

1. Connector for a cathode ray tube of small dimensions, adapted to receive contact pins of said tube for ensuring electrical connections thereof with corresponding circuits connected to a printed circuit, of the type including mid voltage safety discharger means arranged circularly around the tube connector axis and constituted by aplurality of plate-shaped conductor means (4, 5) each being respectively provided with an insulating element (6) forming discharger housing means, one electrode (5) thereof being connected to one of the connector contacts, in turn connected to the corresponding pin of the tube, the other electrode being integral with a common strip (3) connected to earth, said connector being generally ringshaped (1) and provided with an integral peripheral protrusion in the form of a belt (2) including housings each adapted to receive an insulating element (6) forming discharger housing means, the ends of said conductor means (4, 5) and corresponding insulating element (6) forming discharger housing means being arranged in a same plan parallel to that of the tube connector, characterised in that said housings are open at both ends so that the conductor means the ends of which (4, 5) form discharger electrodes are arranged on both sides of said belt, and that each insulating element (6) forming discharger housing means is provided, on its face opposite to the centre of the connector, with two protrusions, one (6b), after being snapped through, forming a position locking tooth, the other (6a) forming a position stop abutment so as to permit installation by simply presenting said discharger means and snapping down into said housings, no permanent strain appearing on the length of said conductor means as they are snapped down into said housings, so that installation can be performed automatically by a machine in a single step.
2. Connector as claimed in claim 1, characterised in that the longitudinal wall of the connector is provided, on the side of the face contacting the circuit connecting printed card, with a catching means, as in the form of a double hook, said means constituting both a set-mark and securing means into said printed card.
3. Connector as claimed in claim 1, characterised in that the periphery of the ring includes, besides the belting part thereof, in which are provided housings each adapted to receive respectively a mid voltage discharger means, a boss forming tubular housing for the pin connected to the focusing grid G3, contact means like a plate, connected to the high voltage power supply, being provided to fit into said housing through the end opposite the one through which penetrates said pin connected to said focusing grid, said boss being adapted in its upper part so as to receive and mechanically guide the pin, in reaction with the setting strength of said contact means introduced through the lower part.
EP19800401115 1979-11-08 1980-07-28 Connector for a cathode ray tube Expired EP0028946B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7927614A FR2469811B2 (en) 1979-11-08 1979-11-08 CONNECTOR FOR CATHODE RAY TUBE
FR7927614 1979-11-08

Publications (3)

Publication Number Publication Date
EP0028946A2 EP0028946A2 (en) 1981-05-20
EP0028946A3 EP0028946A3 (en) 1981-05-27
EP0028946B1 true EP0028946B1 (en) 1983-08-31

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EP19800401115 Expired EP0028946B1 (en) 1979-11-08 1980-07-28 Connector for a cathode ray tube

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EP (1) EP0028946B1 (en)
DE (1) DE3064700D1 (en)
FR (1) FR2469811B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136975U (en) * 1984-08-08 1986-03-07 星電器製造株式会社 cathode ray tube socket
GB8701558D0 (en) * 1987-01-24 1987-02-25 Pressac Ltd Printed circuit connector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1422153A (en) * 1972-02-04 1976-01-21 Carr Fastener Co Ltd Electrical connector sockets
JPS5314104Y2 (en) * 1972-04-19 1978-04-15
JPS5722714Y2 (en) * 1976-06-18 1982-05-17
US4076366A (en) * 1977-05-18 1978-02-28 Rca Corporation High voltage electron tube base with separate dielectric fill-hole
US4156161A (en) * 1977-08-11 1979-05-22 Industrial Electronic Hardware Corp. Tube socket with dual spark gap protection

Also Published As

Publication number Publication date
EP0028946A2 (en) 1981-05-20
DE3064700D1 (en) 1983-10-06
FR2469811B2 (en) 1985-06-14
EP0028946A3 (en) 1981-05-27
FR2469811A2 (en) 1981-05-22

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