EP0751540B1 - Bobbin for transformer and transformer having such a bobbin - Google Patents

Bobbin for transformer and transformer having such a bobbin Download PDF

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Publication number
EP0751540B1
EP0751540B1 EP19960401415 EP96401415A EP0751540B1 EP 0751540 B1 EP0751540 B1 EP 0751540B1 EP 19960401415 EP19960401415 EP 19960401415 EP 96401415 A EP96401415 A EP 96401415A EP 0751540 B1 EP0751540 B1 EP 0751540B1
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EP
European Patent Office
Prior art keywords
terminal
body according
connecting means
leg portion
terminal connector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19960401415
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German (de)
French (fr)
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EP0751540A1 (en
Inventor
Valérie Deconinck
André Demeules
Claude Durame
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.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SA
Legrand SNC
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Publication date
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Publication of EP0751540A1 publication Critical patent/EP0751540A1/en
Application granted granted Critical
Publication of EP0751540B1 publication Critical patent/EP0751540B1/en
Anticipated expiration legal-status Critical
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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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads

Definitions

  • the present invention relates generally transformers.
  • connection terminals In practice, two types of connection must be provided by these connection terminals.
  • the terminal block pads do not are initially only equipped with simple lugs, for example "FASTON” type lugs, comprising exclusively means internal connection.
  • terminal blocks suitable for internal connection and external connection only are reported on the carcass only after the winding of the wires electric, so as not to interfere with this winding.
  • the studs of terminals are integrated from the outset into the carcass, but the in place of lugs can only be made after winding electric wires.
  • the carcass carries connection terminals whose lug combines, in one piece, by itself connecting means external to internal connection means.
  • this terminal is largely protruding from the carcass, to the detriment of the overall size.
  • the present invention generally has for subject a provision to avoid these drawbacks.
  • a carcass for transformer of the kind comprising terminal blocks each suitable for establishing a terminal connection, with, engaged with at least one of these studs terminal block, for the constitution of such a terminal connection, a terminal, which comprises connection means internal, for the connection of an electric wire wound on its gutter, which combines, in one piece, with these means of internal connection, external connection means, for direct connection, by itself, of a conductor specific to the transformer service, characterized in that, in the general shape of an inverted U, the terminal presents a first jamb, by which it is force-fitted into a recess provided for this purpose in hollow on the terminal block that it equips, at the back of it, a middle part, which extends over this terminal block, and thanks to which intervene its external connection means, and a second leg, which is attached to the terminal block, and which includes its internal connection means.
  • the carcass according to the invention is equipped from the outset, and without its bulk being appreciably modified, of pods clean at the same time internal connection of wound wires and connection external of the transformer at its user.
  • the present invention also relates to all transformer whose carcass is thus equipped from the outset lugs suitable for both its internal connection and its external connection.
  • the carcass 10 is intended for the constitution of a transformer 11 comprising, overall, on the one hand, at least two electric wires 12A, 12B wound on this carcass 10, for the achievement of his primary and secondary, and, on the other hand, a magnetic circuit 13.
  • a channel 14 that is to say a tubular part, which is intended to receive, by winding, the electrical wires 12A, 12B, and which is specific to the engagement of the central jamb, not individualized in the figures, of the magnetic circuit 13, and, on the other hand, at the ends of this gutter 14, for the confinement of the electric wires 12A, 12B wound on it, two cheeks 15,
  • the section transverse of the channel 14 is generally rectangular.
  • the cheeks 15 themselves have a generally rectangular outline.
  • terminal blocks 16A, 16B each specific to the establishment a connection terminal 17A, 17B.
  • terminal blocks 16A, 16B are arranged in at least one row.
  • they are arranged in two rows, which intervene, each respectively, facing each other, at the ends of the channel 14, one of these rows comprising the studs 16A terminal block for internal and external connections of the primary of transformer 11, the other comprising the pads of 16B terminal block for internal and external connections of his secondary.
  • the terminal blocks 16A, 16B make projection on a console 18 which locally extends the gutter 14 beyond the corresponding cheek 15.
  • the 16A terminal blocks, 16B are separated two by two by slots 20 intended for the passage of the ends of the electric wire 12A, 12B corresponding.
  • each row two slots 20 are paired, being separated from each other by a partition 21.
  • One of the slots 20 thus paired is associated with the terminal block terminal 16A, 16B, while the other is associated with the terminal block stud 16A, 16B adjacent.
  • This provision which is part of the invention, allows both to avoid that the electric wire to which can match the terminal block stud 16A, 16B of the bank concerned does not passes outside the carcass at the risk of deviating from the core of the assembly and raise insulation issues, and, at the same time, that it does not pass in the same slot 20 as that in which is likely to pass the electric wire to which the adjacent terminal block 16A, 16B can correspond, again, at the risk of raising an insulation problem between the two electric wires then concerned.
  • the pairing of two slots 20 can also advantageously serve as foolproof.
  • terminal block stud 16A, 16B it also allows to visually isolate one of these terminal block studs 16A, 16B, in this case the terminal block stud 16A, Shore 16B, and, if desired, this terminal block 16A, shore 16B can be used to establish a terminal particular connection 17A, 17B, for example of a terminal ground connection 17A, 17B.
  • the terminal blocks 16A, 16B of the two rows are globally similar to each other, and they each have a overall external outline, generally parallelepiped, in all flush on the same level on their upper surface, and being each affected by a notch 19 to their part lower.
  • terminal blocks corresponding to the electric wire 12A wound first are terminal blocks corresponding to the electric wire 12A wound first.
  • the bottom of the slots 20 extends obliquely, away from the console 18 as it moves away from channel 14.
  • the studs of terminal block 16A, 16B are five in number for each row.
  • connection terminal 17A, 17B But it goes without saying that others are also likely to be fitted with such a connection terminal 17A, 17B.
  • connection terminal, 17B For the constitution of a 17A connection terminal, 17B, it is implemented, in engagement with the terminal block 16A, 16B corresponding, a terminal 24A, 24B comprising, according to arrangements described in more detail later, internal connection means 25A, 25B, for connection corresponding electrical wire 12A, 12B.
  • this terminal 24A, 24B combines, in one piece, to these internal connection means 25A, 25B, external connection means 26, for the direct connection, by itself, of an electrical conductor 27A, 27B specific to the transformer 11 service, such as shown schematically in broken lines in Figure 12, and, in form general of inverted U, it overall caps the stud terminal block 16A, 16B concerned.
  • This terminal 24A, 24B thus has a first leg 28, by which, in practice, it is force-fitted into a recess 29 provided for this purpose, hollow, pocket-like, on the terminal block 16A, 16B which it equips, at the rear of this one, a middle part 30, which extends over this stud terminal block 16A, 16B, and thanks to which the external connection means 26, and a second leg 32, which is backed by terminal block 16A, 16B, and which includes the internal connection means 25A, 25B.
  • the first leg 28 has a width less than that of the middle part 30.
  • the second jamb 32 has, overall, a height greater than that of first leg 28, and it comprises, successively, counting of the middle part 30, two sections, namely, a first section 32 ′, which, of height substantially equal to that of the first leg 28, extends over the entire width of the part median 30, and which is generally straight, and a second 32 "section, which is less wide than the previous one, gradually deviates from it, forming at its end a return 33 generally directed towards the outside.
  • these latching means comprise an elastically tab deformable 34, which, coming in one piece from the second leg 32, and, more precisely, of the section 32 ′ of this second leg 32, in favor of a punctured 35 thereof, extends obliquely towards the middle part 30, on the internal face of the leg 32, and which is caught on a shoulder 34 'provided for this purpose on the associated terminal block 16A, 16B.
  • connection means internal 25A of a 24A terminal are for example constituted by a simple pin specific to the winding of such an electric wire 12A, as shown in dashed lines in FIG. 7.
  • connection means 25A extend then generally longitudinally with respect to the second leg 32 of terminal 24A, towards the middle part 30 of it.
  • the internal connection means 25B of the terminal 24B can by example consist of a simple hook specific to the pinching of such an electric wire 12B, as shown in Figure 11.
  • connection means 25B extend then generally transversely to the second leg 32 of terminal 24B, and originally to facilitate the installation of the electric wire 12B, the hook which they form is widely open in V, as shown in Figure 10.
  • the external connection means 26 of a terminal 24A, 24B have, indifferently, on the part median 30 of such a terminal 24A, 24B, whether it is a 24A terminal associated with 16A terminal blocks or whether a terminal 24B associated with the terminal block studs 16B, a hole tapped 36, extended in practice by means of a thread 37, on the lower surface of this middle part 30, for the reception of a screw 38 suitable for tightening the conductor electric 27A, 27B to be connected.
  • they also include a clamping plate 39, which, intended to be inserted under the screw head 38, is perforated with a hole 40 for passage of the barrel of this one.
  • the studs terminal block 16A, 16B have recesses on their upper face a recess 42.
  • the terminals 24A, 24B are placed on the carcass 10 even before the electrical wires 12A are wound, 12B on channel 14 thereof, their anchoring on this carcass 10 allowing them to resist centrifugal force to which they are subjected during this winding.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)

Description

La présente invention concerne d'une manière générale les transformateurs.The present invention relates generally transformers.

Elle vise plus particulièrement ceux de ces transformateurs qui comportent une carcasse en matière isolante, et, plus précisément, en matière synthétique, sur la partie tubulaire, communément appelée caniveau, de laquelle sont bobinés les fils constituant le primaire et le secondaire, et des plots de bornier, qui sont portés par cette carcasse, à l'une au moins des extrémités de celle-ci, et qui sont propres chacun à l'établissement d'une borne de connexion.It targets more particularly those of these transformers with a carcass of material insulating, and more specifically, of synthetic material, on the tubular part, commonly called gutter, of which the primary and secondary wires are wound, and terminal blocks, which are carried by this carcass, at at least one of the ends thereof, and which are each suitable for the establishment of a connection terminal.

En pratique, deux types de raccordement doivent être assurés par ces bornes de connexion.In practice, two types of connection must be provided by these connection terminals.

Il y a tout d'abord un raccordement interne, pour le raccordement, en atelier, des fils électriques bobinés sur le caniveau de la carcasse.First there is an internal connection, for the connection, in the workshop, of the electric wires wound on the carcass gutter.

Il y a, ensuite, un raccordement externe, effectué in situ, par l'utilisateur du transformateur, pour le raccordement des conducteurs électriques nécessaires à la desserte de ce transformateur.Then there is an external connection, made in situ, by the transformer user, for the connection electrical conductors required to service this transformer.

Dans certaines réalisations, les plots de bornier ne sont initialement équipés que de simples cosses, par exemple de cosses de type "FASTON", comportant exclusivement des moyens de raccordement interne.In some embodiments, the terminal block pads do not are initially only equipped with simple lugs, for example "FASTON" type lugs, comprising exclusively means internal connection.

Il faut donc, après le bobinage des fils électriques et leur raccordement à ces cosses, procéder à une opération de reprise particulière, qui consiste à rapporter, sur les plots de bornier, des blocs de connexion, qui, venant en prise, chacun respectivement, avec ces cosses, comportent, eux, les moyens de raccordement externe nécessaires.It is therefore necessary, after the winding of the electric wires and their connection to these terminals, carry out an operation of particular recovery, which consists in reporting, on the studs terminal block, connection blocks, which, coming into engagement, each respectively, with these lugs, have them external connection means required.

Dans d'autres réalisations, des plots de bornier propres au raccordement interne et au raccordement externe ne sont rapportés sur la carcasse qu'après le bobinage des fils électriques, pour ne pas gêner ce bobinage.In other embodiments, terminal blocks suitable for internal connection and external connection only are reported on the carcass only after the winding of the wires electric, so as not to interfere with this winding.

Il faut donc, comme précédemment, procéder à une opération de reprise particulière après ce bobinage, pour assurer le raccordement interne des fils bobinés. It is therefore necessary, as previously, to carry out a particular recovery operation after this winding, to ensure the internal connection of the wound wires.

Dans d'autres réalisations, encore, les plots de bornier sont intégrés dès l'origine à la carcasse, mais la mise en place de cosses ne peut y être faite qu'après le bobinage des fils électriques.In other embodiments, again, the studs of terminals are integrated from the outset into the carcass, but the in place of lugs can only be made after winding electric wires.

Il est donc là aussi nécessaire, après ce bobinage, de procéder à une opération de reprise particulière, pour le raccordement interne des fils bobinés.It is therefore there also necessary, after this winding, to carry out a specific takeover operation, for the internal connection of wound wires.

Dans la demande de brevet allemand No 3 312 513, la carcasse porte des bornes de connexion dont la cosse associe, d'un seul tenant, par elle-même des moyens de raccordement externe à des moyens de raccordement interne.In German Patent Application No. 3,312,513, the carcass carries connection terminals whose lug combines, in one piece, by itself connecting means external to internal connection means.

Mais, en forme générale de L, cette cosse fait largement saillie sur la carcasse, au détriment de l'encombrement de l'ensemble.But, in general L shape, this terminal is largely protruding from the carcass, to the detriment of the overall size.

La présente invention a d'une manière générale pour objet une disposition permettant d'éviter ces inconvénients.The present invention generally has for subject a provision to avoid these drawbacks.

De manière plus précise, elle a tout d'abord pour objet une carcasse pour transformateur du genre comportant des plots de bornier propres chacun à l'établissement d'une borne de connexion, avec, en prise avec l'un au moins de ces plots de bornier, pour la constitution d'une telle borne de connexion, une cosse, qui comporte des moyens de raccordement interne, pour le raccordement d'un fil électrique bobiné sur son caniveau, qui associe, d'un seul tenant, à ces moyens de raccordement interne, des moyens de raccordement externe, pour le raccordement direct, par elle-même, d'un conducteur électrique propre à la desserte du transformateur, caractérisée en ce que, en forme générale de U renversé, la cosse présente un premier jambage, par lequel elle est emmanchée à force dans un logement prévu à cet effet en creux sur le plot de bornier qu'elle équipe, à l'arrière de celui-ci, une partie médiane, qui s'étend sur ce plot de bornier, et à la faveur de laquelle interviennent ses moyens de raccordement externe, et un deuxième jambage, qui est adossé au plot de bornier, et qui comporte ses moyens de raccordement interne.More precisely, it has first of all for subject a carcass for transformer of the kind comprising terminal blocks each suitable for establishing a terminal connection, with, engaged with at least one of these studs terminal block, for the constitution of such a terminal connection, a terminal, which comprises connection means internal, for the connection of an electric wire wound on its gutter, which combines, in one piece, with these means of internal connection, external connection means, for direct connection, by itself, of a conductor specific to the transformer service, characterized in that, in the general shape of an inverted U, the terminal presents a first jamb, by which it is force-fitted into a recess provided for this purpose in hollow on the terminal block that it equips, at the back of it, a middle part, which extends over this terminal block, and thanks to which intervene its external connection means, and a second leg, which is attached to the terminal block, and which includes its internal connection means.

Autrement dit, la carcasse suivant l'invention est équipée dès l'origine, et sans que son encombrement en soit sensiblement modifié, de cosses propres à la fois au raccordement interne des fils bobinés et au raccordement externe du transformateur chez l'utilisateur de celui-ci.In other words, the carcass according to the invention is equipped from the outset, and without its bulk being appreciably modified, of pods clean at the same time internal connection of wound wires and connection external of the transformer at its user.

Ainsi, dès le bobinage, il est possible de procéder en continu au raccordement interne des fils bobinés, sans qu'une quelconque opération de reprise ultérieure soit nécessaire, soit pour assurer ce raccordement interne, soit pour mettre en place de quelconques composants nécessaires au raccordement externe ultérieur.Thus, from the winding, it is possible to proceed by continuous at the internal connection of the wound wires, without a any subsequent recovery operation is necessary, either to ensure this internal connection, or to place any components necessary for connection subsequent external.

La présente invention a encore pour objet tout transformateur dont la carcasse est ainsi équipée dès l'origine de cosses propres à la fois à son raccordement interne et à son raccordement externe.The present invention also relates to all transformer whose carcass is thus equipped from the outset lugs suitable for both its internal connection and its external connection.

Les objets de l'invention, leurs caractéristiques et leurs avantages, ressortiront d'ailleurs de la description qui va suivre, à titre d'exemple, en référence aux dessins schématiques annexés sur lesquels :

  • la figure 1 est une vue en perspective d'une carcasse pour transformateur suivant l'invention, vue d'un premier côté, suivant la flèche I de la figure 2, et avec, en éclaté, l'une des bornes de connexion dont elle est susceptible d'être équipée ;
  • la figure 2 est une autre vue en perspective de cette carcasse, vue du côté opposé au précédent, suivant la flèche II de la figure 1 ;
  • la figure 3 en est, à échelle supérieure, une vue partielle en coupe longitudinale, suivant la ligne III-III de la figure 1, avec, en éclaté, une vue en coupe longitudinale de la cosse que comporte suivant l'invention une borne de connexion ;
  • la figure 4 est une vue partielle en coupe longitudinale analogue à celle de la figure 3, cosse en place ;
  • la figure 5 est une autre vue partielle en coupe longitudinale de la carcasse suivant l'invention, suivant la ligne V-V de la figure 1 ;
  • la figure 6 est une vue en perspective de la cosse représentée en coupe longitudinale sur les figures 3 et 4, vue de l'arrière ;
  • la figure 7 est une vue en perspective de cette cosse, vue de l'avant ;
  • les figures 8, 9 sont des vues en perspective qui, analogues, chacune respectivement, aux figures 6, 7, se rapportent à une autre cosse ;
  • la figure 10 est, à échelle supérieure, une vue partielle en coupe transversale de cette autre cosse suivant la ligne X-X de la figure 9, avant sertissage d'un fil bobiné ;
  • la figure 11 est une vue partielle en coupe transversale analogue à celle de la figure 10, après ce sertissage ;
  • la figure 12 est une vue de côté d'un transformateur comportant une carcasse suivant l'invention, cette vue de côté correspondant, pour cette dernière, à la flèche XII de la figure 1.
    • The objects of the invention, their characteristics and their advantages will appear from the description which follows, by way of example, with reference to the appended schematic drawings in which:
  • Figure 1 is a perspective view of a transformer carcass according to the invention, seen from a first side, along arrow I in Figure 2, and with, in exploded view, one of the connection terminals of which it is likely to be equipped;
  • Figure 2 is another perspective view of this carcass, seen from the side opposite to the previous one, along arrow II of Figure 1;
  • Figure 3 is a larger scale, a partial view in longitudinal section along the line III-III of Figure 1, with, in exploded view, a longitudinal sectional view of the terminal that comprises according to the invention a terminal connection;
  • Figure 4 is a partial view in longitudinal section similar to that of Figure 3, terminal in place;
  • Figure 5 is another partial view in longitudinal section of the carcass according to the invention, along the line VV of Figure 1;
  • Figure 6 is a perspective view of the terminal shown in longitudinal section in Figures 3 and 4, viewed from the rear;
  • Figure 7 is a perspective view of this terminal, viewed from the front;
  • Figures 8, 9 are perspective views which, analogously, each respectively, in Figures 6, 7, relate to another terminal;
  • Figure 10 is, on a larger scale, a partial cross-sectional view of this other terminal along line XX of Figure 9, before crimping of a wound wire;
  • Figure 11 is a partial cross-sectional view similar to that of Figure 10, after this crimping;
  • FIG. 12 is a side view of a transformer comprising a carcass according to the invention, this side view corresponding, for the latter, to arrow XII of FIG. 1.

    • Tel qu'illustré sur ces figures, la carcasse 10 suivant l'invention est destinée à la constitution d'un transformateur 11 comportant, globalement, d'une part, au moins deux fils électriques 12A, 12B bobinés sur cette carcasse 10, pour la réalisation de son primaire et de son secondaire, et, d'autre part, un circuit magnétique 13.As illustrated in these figures, the carcass 10 according to the invention is intended for the constitution of a transformer 11 comprising, overall, on the one hand, at least two electric wires 12A, 12B wound on this carcass 10, for the achievement of his primary and secondary, and, on the other hand, a magnetic circuit 13.

    La carcasse 10, qui est réalisée en matière isolante, et, plus précisément, en matière synthétique, par exemple par moulage, comporte, elle-même, globalement, et d'un seul tenant, d'une part, un caniveau 14, c'est-à-dire une pièce tubulaire, qui est destiné à recevoir, par bobinage, les fils électriques 12A, 12B, et qui est propre à l'engagement du jambage central, non individualisé sur les figures, du circuit magnétique 13, et, d'autre part, aux extrémités de ce caniveau 14, pour le confinement des fils électriques 12A, 12B bobinés sur celui-ci, deux joues 15, qui, parallèles entre elles, sont perpendiculaires aux génératrices du caniveau 14.The carcass 10, which is made of insulating material, and, more specifically, in synthetic material, for example by molding, comprises, itself, globally, and in one piece, on the one hand, a channel 14, that is to say a tubular part, which is intended to receive, by winding, the electrical wires 12A, 12B, and which is specific to the engagement of the central jamb, not individualized in the figures, of the magnetic circuit 13, and, on the other hand, at the ends of this gutter 14, for the confinement of the electric wires 12A, 12B wound on it, two cheeks 15, which, parallel to each other, are perpendicular to the generators of the gutter 14.

    Dans la forme de réalisation représentée, la section transversale du caniveau 14 est globalement rectangulaire.In the embodiment shown, the section transverse of the channel 14 is generally rectangular.

    A l'image de cette section transversale, les joues 15 ont elles-mêmes un contour globalement rectangulaire. Like this cross section, the cheeks 15 themselves have a generally rectangular outline.

    D'un seul tenant avec la carcasse 10 sont prévus des plots de bornier 16A, 16B propres chacun à l'établissement d'une borne de connexion 17A, 17B.In one piece with the carcass 10 are provided terminal blocks 16A, 16B each specific to the establishment a connection terminal 17A, 17B.

    En pratique, ces plots de bornier 16A, 16B sont disposés suivant au moins une rangée.In practice, these terminal blocks 16A, 16B are arranged in at least one row.

    Dans la forme de réalisation représentée, ils sont disposés suivant deux rangées, qui interviennent, chacune respectivement, en regard l'une de l'autre, aux extrémités du caniveau 14, l'une de ces rangées comportant les plots de bornier 16A destinés aux raccordements interne et externe du primaire du transformateur 11, l'autre comportant les plots de bornier 16B destinés aux raccordements interne et externe de son secondaire.In the embodiment shown, they are arranged in two rows, which intervene, each respectively, facing each other, at the ends of the channel 14, one of these rows comprising the studs 16A terminal block for internal and external connections of the primary of transformer 11, the other comprising the pads of 16B terminal block for internal and external connections of his secondary.

    Pour chaque rangée, les plots de bornier 16A, 16B font saillie sur une console 18 qui prolonge localement le caniveau 14 au-delà de la joue 15 correspondante.For each row, the terminal blocks 16A, 16B make projection on a console 18 which locally extends the gutter 14 beyond the corresponding cheek 15.

    Au sein de chaque rangée, les plots de bornier 16A, 16B sont séparés deux à deux par des fentes 20 destinées au passage des extrémités du fil électrique 12A, 12B correspondant.Within each row, the 16A terminal blocks, 16B are separated two by two by slots 20 intended for the passage of the ends of the electric wire 12A, 12B corresponding.

    A l'une des extrémités de chacune des rangées, deux fentes 20 sont jumelées, en étant séparées l'une de l'autre par une cloison 21.At one end of each row, two slots 20 are paired, being separated from each other by a partition 21.

    L'une des fentes 20 ainsi jumelées est associée au plot de bornier 16A, 16B de rive, tandis que l'autre est associée au plot de bornier 16A, 16B adjacent.One of the slots 20 thus paired is associated with the terminal block terminal 16A, 16B, while the other is associated with the terminal block stud 16A, 16B adjacent.

    Cette disposition, qui relève de l'invention, permet à la fois d'éviter que le fil électrique auquel peut correspondre le plot de bornier 16A, 16B de rive concerné ne passe à l'extérieur de la carcasse au risque de s'écarter du noyau de l'ensemble et de soulever des problèmes d'isolation, et, à la fois, qu'il ne passe dans la même fente 20 que celle dans laquelle est susceptible de passer le fil électrique auquel peut correspondre le plot de bornier 16A, 16B adjacent, au risque, là encore, de soulever un problème d'isolation entre les deux fils électriques alors concernés. This provision, which is part of the invention, allows both to avoid that the electric wire to which can match the terminal block stud 16A, 16B of the bank concerned does not passes outside the carcass at the risk of deviating from the core of the assembly and raise insulation issues, and, at the same time, that it does not pass in the same slot 20 as that in which is likely to pass the electric wire to which the adjacent terminal block 16A, 16B can correspond, again, at the risk of raising an insulation problem between the two electric wires then concerned.

    Par la dissymétrie qu'il engendre dans l'alignement des plots de bornier 16A, 16B de chaque rangée, le jumelage de deux fentes 20 peut également avantageusement servir de détrompage.By the asymmetry it generates in alignment terminal blocks 16A, 16B in each row, the pairing of two slots 20 can also advantageously serve as foolproof.

    Il permet également d'isoler visuellement l'un de ces plots de bornier 16A, 16B, en l'espèce le plot de bornier 16A, 16B de rive, et, si désiré, ce plot de bornier 16A, 16B de rive peut être mis à profit pour l'établissement d'une borne de connexion 17A, 17B particulière, par exemple d'une borne de connexion 17A, 17B de masse.It also allows to visually isolate one of these terminal block studs 16A, 16B, in this case the terminal block stud 16A, Shore 16B, and, if desired, this terminal block 16A, shore 16B can be used to establish a terminal particular connection 17A, 17B, for example of a terminal ground connection 17A, 17B.

    Les plots de bornier 16A, 16B des deux rangées sont globalement semblables entre eux, et ils présentent chacun un contour extérieur hors tout globalement parallélépipédique, en affleurant tous à un même niveau à leur surface supérieure, et en étant chacun affectés par une échancrure 19 à leur partie inférieure.The terminal blocks 16A, 16B of the two rows are globally similar to each other, and they each have a overall external outline, generally parallelepiped, in all flush on the same level on their upper surface, and being each affected by a notch 19 to their part lower.

    Mais, suivant l'invention, certains au moins d'entre eux sont flanqués latéralement, d'un côté, en bordure de la fente 20 qui leur est associée, par une cloison 22 qui s'étend jusqu'au fond de cette fente 20.But, according to the invention, at least some of they are flanked laterally, on one side, bordering the slot 20 associated with them, by a partition 22 which extends to the bottom of this slot 20.

    Dans la forme de réalisation représentée, seuls les plots de bornier 16A d'une des rangées sont ainsi chacun flanqués latéralement par une cloison 22.In the embodiment shown, only the terminal blocks 16A of one of the rows are thus each laterally flanked by a partition 22.

    Il s'agit en pratique des plots de bornier correspondants au fil électrique 12A bobiné le premier.In practice, these are terminal blocks corresponding to the electric wire 12A wound first.

    Dans la forme de réalisation représentée, et ainsi qu'il est mieux visible pour l'une d'elles sur la figure 5, le fond des fentes 20 s'étend en oblique, en s'écartant de la console 18 au fur et à mesure qu'il s'éloigne du caniveau 14.In the embodiment shown, and so that it is better visible for one of them in FIG. 5, the bottom of the slots 20 extends obliquely, away from the console 18 as it moves away from channel 14.

    Dans les formes de réalisation représentées, les plots de bornier 16A, 16B sont au nombre de cinq pour chaque rangée.In the embodiments shown, the studs of terminal block 16A, 16B are five in number for each row.

    Mais il va de soi que ce nombre ne doit pas être considéré comme limitatif de l'invention.But it goes without saying that this number should not be considered to be limiting of the invention.

    Sur les figures 1 et 2, et pour ne pas surcharger celles-ci, seul l'un des plots de bornier 16A, 16B de chaque rangée a été représenté équipé d'une borne de connexion 17A, 17B. In Figures 1 and 2, and so as not to overload these, only one of the terminal blocks 16A, 16B of each row has been shown equipped with a connection terminal 17A, 17B.

    Mais il va de soi que d'autres sont également susceptibles d'être équipés d'une telle borne de connexion 17A, 17B.But it goes without saying that others are also likely to be fitted with such a connection terminal 17A, 17B.

    Pour la constitution d'une borne de connexion 17A, 17B, il est mis en oeuvre, en prise avec le plot de bornier 16A, 16B correspondant, une cosse 24A, 24B comportant, suivant des dispositions décrites plus en détail ultérieurement, des moyens de raccordement interne 25A, 25B, pour le raccordement du fil électrique 12A, 12B correspondant.For the constitution of a 17A connection terminal, 17B, it is implemented, in engagement with the terminal block 16A, 16B corresponding, a terminal 24A, 24B comprising, according to arrangements described in more detail later, internal connection means 25A, 25B, for connection corresponding electrical wire 12A, 12B.

    Suivant l'invention, cette cosse 24A, 24B associe, d'un seul tenant, à ces moyens de raccordement interne 25A, 25B, des moyens de raccordement externe 26, pour le raccordement direct, par elle-même, d'un conducteur électrique 27A, 27B propre à la desserte du transformateur 11, tel que schématisé en traits interrompus sur la figure 12, et, en forme générale de U renversé, elle coiffe globalement le plot de bornier 16A, 16B concerné.According to the invention, this terminal 24A, 24B combines, in one piece, to these internal connection means 25A, 25B, external connection means 26, for the direct connection, by itself, of an electrical conductor 27A, 27B specific to the transformer 11 service, such as shown schematically in broken lines in Figure 12, and, in form general of inverted U, it overall caps the stud terminal block 16A, 16B concerned.

    Cette cosse 24A, 24B présente ainsi un premier jambage 28, par lequel, en pratique, elle est emmanchée à force dans un logement 29 prévu à cet effet, en creux, en forme de poche, sur le plot de bornier 16A, 16B qu'elle équipe, à l'arrière de celui-ci, une partie médiane 30, qui s'étend sur ce plot de bornier 16A, 16B, et à la faveur de laquelle interviennent les moyens de raccordement externe 26, et un deuxième jambage 32, qui est adossé au plot de bornier 16A, 16B, et qui comporte les moyens de raccordement interne 25A, 25B.This terminal 24A, 24B thus has a first leg 28, by which, in practice, it is force-fitted into a recess 29 provided for this purpose, hollow, pocket-like, on the terminal block 16A, 16B which it equips, at the rear of this one, a middle part 30, which extends over this stud terminal block 16A, 16B, and thanks to which the external connection means 26, and a second leg 32, which is backed by terminal block 16A, 16B, and which includes the internal connection means 25A, 25B.

    En pratique, dans la forme de réalisation représentée, le premier jambage 28 a une largeur moindre que celle de la partie médiane 30.In practice, in the embodiment shown, the first leg 28 has a width less than that of the middle part 30.

    Pour son ancrage dans le logement 29 dans lequel il est emmanché, il est cranté.For its anchoring in the housing 29 in which it is fitted, it is notched.

    Dans la forme de réalisation représentée, il présente, latéralement, sur chacune de ses tranches, au moins un cran dissymétrique 31, à la manière d'un harpon.In the embodiment shown, it presents, laterally, on each of its slices, at least one notch asymmetrical 31, like a harpoon.

    En pratique, plusieurs crans dissymétriques 31 sont échelonnés en hauteur sur chacune de ces tranches. In practice, several asymmetrical notches 31 are staggered in height on each of these sections.

    Dans la forme de réalisation représentée, le deuxième jambage 32 a, globalement, une hauteur supérieure à celle du premier jambage 28, et il comporte, successivement, à compter de la partie médiane 30, deux tronçons, à savoir, un premier tronçon 32', qui, de hauteur sensiblement égale à celle du premier jambage 28, s'étend sur toute la largeur de la partie médiane 30, et qui est globalement droit, et un deuxième tronçon 32", qui, de largeur moindre que celle du précédent, s'écarte progressivement de celui-ci, en formant à son extrémité un retour 33 globalement dirigé vers l'extérieur.In the embodiment shown, the second jamb 32 has, overall, a height greater than that of first leg 28, and it comprises, successively, counting of the middle part 30, two sections, namely, a first section 32 ′, which, of height substantially equal to that of the first leg 28, extends over the entire width of the part median 30, and which is generally straight, and a second 32 "section, which is less wide than the previous one, gradually deviates from it, forming at its end a return 33 generally directed towards the outside.

    Les moyens de raccordement interne 25A, 25B interviennent à l'extrémité de ce retour 33.Internal connection means 25A, 25B intervene at the end of this return 33.

    Préférentiellement, et tel que représenté, pour l'arc-boutement de la cosse 24A, 24B sur le plot de bornier 16A, 16B qu'elle équipe, il est prévu des moyens d'encliquetage entre son deuxième jambage 32 et ce plot de bornier 16A, 16B, en sus de l'emmanchement du premier jambage 28.Preferably, and as shown, for the bracing of the terminal 24A, 24B on the terminal block 16A, 16B that it equips, there are provided snap-in means between its second leg 32 and this terminal block stud 16A, 16B, in addition of the fitting of the first leg 28.

    En pratique, dans la forme de réalisation représentée, ces moyens d'encliquetage comportent une patte élastiquement déformable 34, qui, venue d'un seul tenant du deuxième jambage 32, et, plus précisément, du tronçon 32' de ce deuxième jambage 32, à la faveur d'un crevé 35 de celui-ci, s'étend en oblique vers la partie médiane 30, sur la face interne du jambage 32, et qui vient se prendre sur un épaulement 34' prévu à cet effet sur le plot de bornier 16A, 16B associé.In practice, in the embodiment shown, these latching means comprise an elastically tab deformable 34, which, coming in one piece from the second leg 32, and, more precisely, of the section 32 ′ of this second leg 32, in favor of a punctured 35 thereof, extends obliquely towards the middle part 30, on the internal face of the leg 32, and which is caught on a shoulder 34 'provided for this purpose on the associated terminal block 16A, 16B.

    Lorsque le fil électrique à bobiner est un fil relativement fin, et donc souple, et cela est le cas pour le fil électrique 12A du primaire du transformateur 11 dans la forme de réalisation représentée, les moyens de raccordement interne 25A d'une cosse 24A sont par exemple constitués par un simple picot propre à l'enroulement d'un tel fil électrique 12A, tel que schématisé en traits interrompus sur la figure 7.When the electric wire to be wound is a wire relatively thin, and therefore flexible, and this is the case for the electrical wire 12A from the transformer primary 11 in the illustrated embodiment, the connection means internal 25A of a 24A terminal are for example constituted by a simple pin specific to the winding of such an electric wire 12A, as shown in dashed lines in FIG. 7.

    Ces moyens de raccordement interne 25A s'étendent alors globalement longitudinalement par rapport au deuxième jambage 32 de la cosse 24A, en direction de la partie médiane 30 de celle-ci. These internal connection means 25A extend then generally longitudinally with respect to the second leg 32 of terminal 24A, towards the middle part 30 of it.

    Lorsque le fil électrique à bobiner est un fil relativement épais, et donc relativement rigide, et cela est le cas pour le fil électrique 12B du secondaire du transformateur 11 dans la forme de réalisation représentée, les moyens de raccordement interne 25B de la cosse 24B peuvent par exemple être constitués par un simple crochet propre au pincement d'un tel fil électrique 12B, tel que représenté sur la figure 11.When the electric wire to be wound is a wire relatively thick, and therefore relatively rigid, and this is the case for secondary school electrical wire 12B transformer 11 in the embodiment shown, the internal connection means 25B of the terminal 24B can by example consist of a simple hook specific to the pinching of such an electric wire 12B, as shown in Figure 11.

    Ces moyens de raccordement interne 25B s'étendent alors globalement transversalement par rapport au deuxième jambage 32 de la cosse 24B, et, à l'origine, pour faciliter la mise en place du fil électrique 12B, le crochet qu'ils forment est largement ouvert en V, tel que représenté sur la figure 10.These internal connection means 25B extend then generally transversely to the second leg 32 of terminal 24B, and originally to facilitate the installation of the electric wire 12B, the hook which they form is widely open in V, as shown in Figure 10.

    Conjointement, les moyens de raccordement externe 26 d'une cosse 24A, 24B comportent, indifféremment, sur la partie médiane 30 d'une telle cosse 24A, 24B, qu'il s'agisse d'une cosse 24A associée aux plots de bornier 16A ou qu'il s'agisse d'une cosse 24B associée aux plots de bornier 16B, un trou taraudé 36, prolongé en pratique à la faveur d'un soyage 37, sur la surface inférieure de cette partie médiane 30, pour la réception d'une vis 38 propre au serrage du conducteur électrique 27A, 27B à raccorder.Together, the external connection means 26 of a terminal 24A, 24B have, indifferently, on the part median 30 of such a terminal 24A, 24B, whether it is a 24A terminal associated with 16A terminal blocks or whether a terminal 24B associated with the terminal block studs 16B, a hole tapped 36, extended in practice by means of a thread 37, on the lower surface of this middle part 30, for the reception of a screw 38 suitable for tightening the conductor electric 27A, 27B to be connected.

    Préférentiellement, et c'est le cas dans la forme de réalisation représentée, ils comportent, en outre, une plaquette de serrage 39, qui, destinée à être insérée sous la tête de la vis 38, est ajourée d'un perçage 40 pour le passage du fût de celle-ci.Preferably, and this is the case in the form of shown embodiment, they also include a clamping plate 39, which, intended to be inserted under the screw head 38, is perforated with a hole 40 for passage of the barrel of this one.

    Pour le débattement d'une telle vis 38, les plots de bornier 16A, 16B présentent en creux sur leur face supérieure un évidement 42.For the movement of such a screw 38, the studs terminal block 16A, 16B have recesses on their upper face a recess 42.

    Il s'agit, en pratique, d'un évidement borgne.In practice, this is a blind recess.

    Les cosses 24A, 24B sont mises en place sur la carcasse 10 avant même le bobinage des fils électriques 12A, 12B sur le caniveau 14 de celle-ci, leur ancrage sur cette carcasse 10 leur permettant de résister à la force centrifuge à laquelle elles sont soumises lors de ce bobinage. The terminals 24A, 24B are placed on the carcass 10 even before the electrical wires 12A are wound, 12B on channel 14 thereof, their anchoring on this carcass 10 allowing them to resist centrifugal force to which they are subjected during this winding.

    Au terme du bobinage de chacun des fils électriques 12A, 12B, et en continuité avec ce bobinage, il est procédé au raccordement interne de ces fils électriques 12A, 12B.At the end of the winding of each of the electrical wires 12A, 12B, and in continuity with this winding, the internal connection of these electrical wires 12A, 12B.

    Pour le fil électrique 12A, qui est en pratique bobiné le premier, ce raccordement interne se fait, comme indiqué précédemment, par enroulement, ou "wrapping", après contournement de la cloison 22 correspondante, tel que représenté sur la figure 12.For 12A electrical wire, which is in practice wound the first, this internal connection is made, as indicated previously, by winding, or "wrapping", after bypassing the corresponding partition 22, such as shown in figure 12.

    Pour le fil électrique 12B, et comme également indiqué précédemment, il se fait par pincement, tel que représenté sur la figure 12.For the electric wire 12B, and as also indicated previously, it is done by pinching, as shown on Figure 12.

    Dans l'un et l'autre cas, l'enroulement, ou le pincement, est suivi ultérieurement d'un soudage.In either case, the winding, or the pinching, is subsequently followed by welding.

    Il est procédé, ensuite, à la mise en place des plaquettes de serrage 39 et des vis 38, pour le complètement du transformateur 11.It is then proceeded to the establishment of clamping plates 39 and screws 38, for complete of transformer 11.

    Bien entendu, la présente invention ne se limite pas à la forme de réalisation décrite et représentée, mais englobe toute variante d'exécution dans les limites des revendications.Of course, the present invention is not limited to the embodiment described and shown, but encompasses any variant within the limits of the claims.

    Claims (15)

    1. A body for a transformer, of the kind comprising terminal blocks (16A, 16B) which are each suited to establishing a connecting terminal (17A, 17B) with, in engagement with one at least of said terminal blocks (16A, 16B), for constituting such a connecting terminal (17A, 17B), a terminal connector (24A, 24B) which comprises internal connecting means (25A, 25B) for connecting an electric wire (12A, 12B) which is wound on its tubular body portion (14) and which associates in one piece with said internal connecting means (25A, 25B) external connecting means (26) for the direct connection by itself of an electrical conductor (27A, 27B) for serving the corresponding transformer (11), characterised in that, in the general shape of an inverted U, the terminal connector (24A, 24B) has a first leg portion (28) by which it is fitted with a force fit in a housing (29) provided for that purpose in recessed relationship in the terminal block (16A, 16B) to which it is fitted, to the rear thereof, a central portion (30) which extends over said terminal block (16A, 16B) and by virtue of which its external connecting means (26) come into effect, and a second leg portion (32) which is disposed in backing relationship with the terminal block (16A. 16B) and which comprises its internal connecting means (25A, 25B).
    2. A body according to claim 1 characterised in that the internal connecting means (25A) of a terminal connector (24A) are formed by a simple pointed portion suitable for winding of the electric wire (12A) to be connected.
    3. A body according to claim 1 characterised in that the internal connecting means (25B) of a terminal connector (24B) are formed by a simple hook suitable for gripping the electric wire (12A) to be connected.
    4. A body according to any one of claims 1 to 3 characterised in that the external connecting means (26) of a terminal connector (24A, 24B) comprise a screwthreaded hole (36) for receiving a screw (38) for clamping the electrical conductor (27A, 27B) to be connected.
    5. A body according to claim 4 characterised in that the external connecting means (26) of a terminal connector (24A, 24B) also comprise a clamping plate (39).
    6. A body according to any one of claims 1 to 5 characterised in that the internal connecting means (25A, 25B) of a terminal connector (24A, 24B) are operatively disposed at the end of a return part (33) of its second leg portion (32) which is generally directed outwardly.
    7. A body according to claim 6 characterised in that, involving a pointed portion, the internal connecting means (25A) of a terminal connector (24A) extend generally longitudinally with respect to its second leg portion (32) in the direction of its central portion (30).
    8. A body according to claim 6 characterised in that, involving a hook, the internal connecting means (25B) of a terminal connector (24B) extend generally transversely with respect to its second leg portion (32).
    9. A body according to any one of claims 1 to 8 characterised in that the second leg portion (32) of a terminal connector (24A, 24B) is generally of a greater height than the height of its first leg portion (28).
    10. A body according to any one of claims 1 to 9 characterised in that, for anchorage thereof in the housing (29) into which it is fitted, the first leg portion (28) of a terminal connector (24A, 24B) is notched.
    11. A body according to any one of claims 1 to 10 characterised in that, for support of a terminal connector (24A, 24B) on the terminal block (16A, 16B) to which it is fitted, there are provided latching means (34, 34') between its second leg portion (32) and said terminal block (16A, 16B).
    12. A body according to any one of claims 1 to 11 characterised in that, the terminal blocks (16A, 16B) being disposed in at least one row, being separated two by two by slots (20), some at least thereof are laterally flanked by a partition (22) which extends to the bottom of the corresponding slot (20).
    13. A body according to claim 12 characterised in that, the terminal blocks (16A, 16B) being disposed in two rows which are each respectively arranged at the ends of the tubular portion (14), only the terminal blocks (16A) of one of said rows are laterally flanked by a partition (22).
    14. A body according to any one of claims 1 to 13 characterised in that, the terminal blocks (16A, 16B) being disposed in at least one row, being separated two by two by slots (20), two slots (20) are twinned at one of the ends of such a row.
    15. A transformer, on to the body (10) of which are wound at least two electric wires (12A, 12B), characterised in that the body is in accordance with any one of claims 1 to 14.
    EP19960401415 1995-06-30 1996-06-26 Bobbin for transformer and transformer having such a bobbin Expired - Lifetime EP0751540B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9507898 1995-06-30
    FR9507898A FR2736199B1 (en) 1995-06-30 1995-06-30 CARCASS FOR TRANSFORMER, AND TRANSFORMER COMPRISING SUCH A CARCASS

    Publications (2)

    Publication Number Publication Date
    EP0751540A1 EP0751540A1 (en) 1997-01-02
    EP0751540B1 true EP0751540B1 (en) 2000-04-12

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    EP19960401415 Expired - Lifetime EP0751540B1 (en) 1995-06-30 1996-06-26 Bobbin for transformer and transformer having such a bobbin

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    EP (1) EP0751540B1 (en)
    DE (1) DE69607682T2 (en)
    FR (1) FR2736199B1 (en)

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    EP1713097A1 (en) 2005-04-11 2006-10-18 Murr-Elektronik Gesellschaft mit beschränkter Haftung Terminal for a transformer bobbin

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    AU740436B2 (en) * 1997-03-25 2001-11-01 Atco Controls Pty. Ltd. A transformer
    FR2871287B1 (en) * 2004-06-04 2007-02-09 Schneider Electric Ind Sas SIMPLIFIED TERMINAL TRANSFORMER
    CN104684293B (en) 2013-11-26 2017-10-27 台达电子企业管理（上海）有限公司 Electronic installation, shell and coiling tub
    CN104682457B (en) 2013-11-26 2017-08-29 台达电子企业管理（上海）有限公司 The charging device of electronic installation and automobile
    CN104682722B (en) 2013-11-26 2018-01-26 台达电子企业管理（上海）有限公司 Power supply change-over device and its assemble method

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    DE2148534A1 (en) * 1971-09-29 1973-04-05 Plathner Ernst Transformatoren CONNECTION FLAG FOR TRANSFORMERS, REACTORS OD. DGL
    US3800172A (en) * 1972-11-10 1974-03-26 Oster J Mfg Co Hair clipper having blade illumination and field wire strain relief
    US4040700A (en) * 1976-02-24 1977-08-09 Amerace Corporation Electrical terminating device
    DE3148902A1 (en) * 1981-12-10 1983-06-23 Standard Elektrik Lorenz Ag, 7000 Stuttgart Coil former suitable for automatons
    DE3312513A1 (en) * 1982-11-05 1984-10-11 Gebrüder Frei GmbH & Co KG, 7470 Albstadt Transformer
    DE3910750C3 (en) * 1989-04-03 2002-11-07 Norbert Weiner Connection device for an electronic component

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    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1713097A1 (en) 2005-04-11 2006-10-18 Murr-Elektronik Gesellschaft mit beschränkter Haftung Terminal for a transformer bobbin

    Also Published As

    Publication number Publication date
    FR2736199B1 (en) 1997-09-05
    DE69607682D1 (en) 2000-05-18
    FR2736199A1 (en) 1997-01-03
    EP0751540A1 (en) 1997-01-02
    DE69607682T2 (en) 2000-08-10

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