FR2514556A1 - Electrical fuse cartridge for subscriber telephone unit - has moulded insulating box with two flared metal ferrules forming collar centring and retaining fuse wire - Google Patents
Electrical fuse cartridge for subscriber telephone unit - has moulded insulating box with two flared metal ferrules forming collar centring and retaining fuse wire Download PDFInfo
- Publication number
- FR2514556A1 FR2514556A1 FR8119178A FR8119178A FR2514556A1 FR 2514556 A1 FR2514556 A1 FR 2514556A1 FR 8119178 A FR8119178 A FR 8119178A FR 8119178 A FR8119178 A FR 8119178A FR 2514556 A1 FR2514556 A1 FR 2514556A1
- Authority
- FR
- France
- Prior art keywords
- fuse
- box
- centring
- retaining
- insulating box
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/02—Manufacture of fuses
- H01H2069/027—Manufacture of fuses using ultrasonic techniques
Landscapes
- Fuses (AREA)
Abstract
Description
La présente invention concerne des perfectionnements apportés aux fusibles utilisés notamment, dans les télécommunications et plus particulièrement, aux fusibles prévus sur les lignes des boîtes d'entrée de postes d'abonnés au téléphone. The present invention relates to improvements made to fuses used in particular in telecommunications and more particularly to fuses provided on the lines of input boxes of telephone subscriber stations.
On sait que ces fusibles sont constitués par un boîtier de forme parallélépipédique, en matière isolante, qui contient l'élément fusible. De ce boîtier font saillie des embouts servant de connection de sortie du fusible. We know that these fuses are constituted by a box of parallelepiped shape, in insulating material, which contains the fuse element. From this housing protruding end pieces serve as an outlet connection for the fuse.
Les perfectionnements apportés par l'invention permettent de réaliser un positionnement parfait et une mise à longueur exacte de ces embouts. Ils permettent également, de satisfaire les conditions techniques sévères que doivent remplir les fusibles, notamment au point de vue de leur résistance aux sollicitations mécaniques auxquelles ils peuvent etre soumis lors de leur mise en place -en particulier dans les boîtes d'entrée des postes d'abonnés-. The improvements made by the invention make it possible to achieve perfect positioning and exact lengthening of these end pieces. They also make it possible to satisfy the severe technical conditions which the fuses must fulfill, in particular from the point of view of their resistance to mechanical stresses to which they may be subjected during their installation - in particular in the input boxes of the substations. 'subscribers-.
Conformément à l'invention, les embouts, tubulaires, avantageusement obtenus à partir de tubes de laiton nickelé, sont, à l'une de leurs extrémités, évasés et cet évasement vient se loger dans une rainure du boîtier prévue à cet effet. According to the invention, the tubular ends, advantageously obtained from nickel-plated brass tubes, are, at one of their ends, flared and this flare is housed in a groove in the housing provided for this purpose.
Egalement suivant l'invention, l'élément fusible découpé au préalable, est enfilé à travers les deux embouts avec un léger dépassement à l'intérieur de l'embout, ce dépassement servant ensuite à obstruer l'extrémité de chaque embout, par tout moyen adequat et avantageusement par soudure. Also according to the invention, the fuse element cut beforehand, is threaded through the two end pieces with a slight protrusion inside the end piece, this protrusion then serving to obstruct the end of each end piece, by any means adequate and advantageously by welding.
Les divers caractéristiques et avantages de l'invention ressortiront de la description qui va suivre, d'une de ses formes possibles de réalisation, donnée uniquement à titre d'exemple non limitatif. The various characteristics and advantages of the invention will emerge from the description which follows, of one of its possible embodiments, given solely by way of nonlimiting example.
Au cours de cette description, on se réfère au dessin ci-joint qui montre
- Figure 1 partie en vue extérieure et partie en coupe longitudinale, un fusible suivant l'invention,
- Figure 2 une coupe suivant Il-Il de la figure 1,
- Figure 3 une vue en plan par dessus du boîtier dont le couvercle est partiellement arraché.During this description, reference is made to the attached drawing which shows
- Figure 1 part in external view and part in longitudinal section, a fuse according to the invention,
- Figure 2 a section along Il-Il of Figure 1,
- Figure 3 a plan view from above of the housing, the cover is partially torn off.
Comme connu, le fusible est constitué par un boîtier a de forme parallélépipédique, en une matière isolante moulée, fermé par un couvercle al. Dans ce boîtier, est introduit, d'une façon qui sera décrite plus loin, le fil b par exemple en étain, constituant l'élément fusible. Ce fusible passe en vue de sa connection, dans deux embouts c coaxiaux au corps du boîtier, et faisant saillie d'une certaine quantité hors du boîtier. As known, the fuse consists of a housing a of parallelepiped shape, in a molded insulating material, closed by a cover al. In this case, is introduced, in a manner which will be described later, the wire b, for example tin, constituting the fuse element. This fuse passes in view of its connection, in two nozzles c coaxial with the body of the case, and projecting a certain amount out of the case.
Conformément à l'invention, ces embouts sont tubulaires -obtenus par exemple, à partir de tubes en laiton nickelé-, et l'une de leurs extrémités est évasée de façon à former une collerette cl. Cette collerette est, conformément à l'invention, reçue dans une rainure d, ménagée, à cet effet, dans le corps du boîtier. According to the invention, these end pieces are tubular - obtained for example, from nickel-plated brass tubes -, and one of their ends is flared so as to form a flange cl. This collar is, in accordance with the invention, received in a groove d, formed, for this purpose, in the body of the housing.
Au montage, la collerette cl de chacun des embouts tubulaires est placée dans la rainure d lui servant de logement. Ces dispositions suivant l'invention assurent le centrage exacte des embouts ainsi que leur cote exacte en longueur. During assembly, the flange cl of each of the tubular end pieces is placed in the groove d serving as a housing. These arrangements according to the invention ensure the exact centering of the end pieces as well as their exact length dimension.
Le couvercle est alors mis en position sur le boîtier et centré par emboîtement sur ce dernier, puis rendu solidaire du boîtier par tout moyen quelconque convenable, avantageusement au moyen de soudures par ultra-sons, ce qui assure l'étanchéité du fusible et maintient en place les embouts. The cover is then placed in position on the box and centered by interlocking on the latter, then made integral with the box by any suitable means, advantageously by means of ultrasonic welds, which ensures the sealing of the fuse and maintains in place the end caps.
Quant à l'élément fusible b, par exemple un fil d'étain, il est découpé au préalable suivant une longueur telle que, une fois en place, il fasse légèrement saillie dans les embouts comme on le voit en b sur la fiqure 1. Une fois découpé,-le fil est, en fin d'opération de montage, enfilé à travers les embouts et ses extrémités, se trouvant, grâce à la longueur qui lui est donnée, à proximité de celles des embouts, sont soudées, par exemple à l'étain, en e (figure 1) sur ces embouts. As for the fuse element b, for example a tin wire, it is cut beforehand along a length such that, once in place, it protrudes slightly in the end pieces as seen in b on FIG. 1. Once cut, the wire is, at the end of the mounting operation, threaded through the end caps and its ends, being, thanks to the length given to it, close to those of the end caps, are welded, for example tin, e (Figure 1) on these tips.
Grâce à ces dispositions suivant l'invention, on réalise une obturation complète des embouts. En définitive, on obtient un fusible compact, étanche, susceptible de résister aux sollicitations- et contraintes mécaniques auxquelles il peut être soumis sans déformation appréciable. Thanks to these arrangements according to the invention, a complete sealing of the end pieces is carried out. Ultimately, a compact, waterproof fuse is obtained, capable of withstanding the stresses and mechanical stresses to which it can be subjected without appreciable deformation.
Bien entendu, l'invention n'est en aucune-façon limitée à la forme de réalisation décrite et représentée, mais peut donner lieu à de nombreuses variantes, touchant notamment les matériaux adoptés pour la constitution des divers éléments du fusible, les moyens et la nature des soudures, sans pour autant que ce faisant, on sorte de son cadre. Of course, the invention is in no way limited to the embodiment described and shown, but can give rise to many variants, affecting in particular the materials adopted for the constitution of the various elements of the fuse, the means and the nature of the welds, without thereby doing so, leaving the framework.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8119178A FR2514556A1 (en) | 1981-10-12 | 1981-10-12 | Electrical fuse cartridge for subscriber telephone unit - has moulded insulating box with two flared metal ferrules forming collar centring and retaining fuse wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8119178A FR2514556A1 (en) | 1981-10-12 | 1981-10-12 | Electrical fuse cartridge for subscriber telephone unit - has moulded insulating box with two flared metal ferrules forming collar centring and retaining fuse wire |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2514556A1 true FR2514556A1 (en) | 1983-04-15 |
FR2514556B1 FR2514556B1 (en) | 1984-09-14 |
Family
ID=9262963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8119178A Granted FR2514556A1 (en) | 1981-10-12 | 1981-10-12 | Electrical fuse cartridge for subscriber telephone unit - has moulded insulating box with two flared metal ferrules forming collar centring and retaining fuse wire |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2514556A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9005916U1 (en) * | 1990-05-25 | 1991-09-26 | Doduco Gmbh + Co Dr. Eugen Duerrwaechter, 7530 Pforzheim, De |
-
1981
- 1981-10-12 FR FR8119178A patent/FR2514556A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9005916U1 (en) * | 1990-05-25 | 1991-09-26 | Doduco Gmbh + Co Dr. Eugen Duerrwaechter, 7530 Pforzheim, De | |
DE4116983A1 (en) * | 1990-05-25 | 1991-11-28 | Duerrwaechter E Dr Doduco | Electric fuse for vehicle current cable - has elongate housing enclosing terminal clamps fitted to opposite ends of current cable |
Also Published As
Publication number | Publication date |
---|---|
FR2514556B1 (en) | 1984-09-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0944101B1 (en) | Bus-bar device and electrical feed-through | |
FR2514556A1 (en) | Electrical fuse cartridge for subscriber telephone unit - has moulded insulating box with two flared metal ferrules forming collar centring and retaining fuse wire | |
FR2488163A1 (en) | COIL FOR THE GENERALIZED IMPLEMENTATION OF THE MAGNETO FORMING METHOD, AND METHODS AND MEANS FOR MANUFACTURING THE REEL | |
FR2733366A1 (en) | DEVICE FOR RECOVERING CABLES SHIELD | |
JPH07254349A (en) | Improved delay fuse | |
CH679815A5 (en) | ||
FR2513445A1 (en) | ELECTRICAL CONNECTOR FOR A CABLE COMPRISING A TRACTION DISCHARGE CABLE | |
EP0258133B1 (en) | Device for connecting an antenna, in particular a motor vehicle antenna, to its associated coaxial cable | |
EP0090881B1 (en) | Tie to hold an electrical cable in the upper groove of a rigid insulator | |
EP0932173B1 (en) | Mobile contact element for a HT circuit breaker, and expandable | |
FR2688933A1 (en) | ASSEMBLY OF A MAGNETIC TORE WITH A COIL. | |
FR2697671A1 (en) | Elongate tubular discharge lamp e.g. for neon advertising sign - includes contact wire passing through sealed end of tube and being folded to make contact with metal ferrule surrounding tube end | |
EP0751024A1 (en) | Method for producing filler pipes for fuel tanks | |
FR2639142A1 (en) | Device for connecting electric coils | |
FR2465334A1 (en) | Elbowed coaxial plug for HF line - has walls of shell bent over to cover connection with insulation between shell and pin | |
EP0683556B1 (en) | Piece of electrical connection of a protective sleeve to an end of a semiconductive screen of an electrical cable | |
CA1046352A (en) | Joint for envelope of cacuum type electrical device | |
FR2466112A1 (en) | Coaxial HF cable connector assembly - has outer tubular contact to which cable outer conductor, flared into rosette shape, is brazed | |
FR2585412A1 (en) | Ignition coil casing for an internal combustion engine | |
EP0048698A1 (en) | Watertight watch case | |
FR2494495A1 (en) | APPARATUS CIRCUIT CARTRIDGE AND METHOD FOR MANUFACTURING THE SAME | |
EP0874431A1 (en) | Angled electrica plug | |
EP0268502A1 (en) | Ignition distributor cap comprising at least a hook-shaped cable connection | |
FR2574216A1 (en) | Screening electrode for transformer step switch | |
FR2466902A1 (en) | Filter assembly with electrical terminal on cylindrical mounting - has tubular member connected to ground plate by component with one end in filter and other in potting material to develop rigidity |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |