EP0353136A1 - Transformer frame and transformer having such a frame - Google Patents

Transformer frame and transformer having such a frame Download PDF

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Publication number
EP0353136A1
EP0353136A1 EP89402091A EP89402091A EP0353136A1 EP 0353136 A1 EP0353136 A1 EP 0353136A1 EP 89402091 A EP89402091 A EP 89402091A EP 89402091 A EP89402091 A EP 89402091A EP 0353136 A1 EP0353136 A1 EP 0353136A1
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EP
European Patent Office
Prior art keywords
carcass
housing
flanges
carcass according
tubular body
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.)
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Application number
EP89402091A
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German (de)
French (fr)
Inventor
Jean Louis Chauveau
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Legrand Deri SA
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Legrand Deri SA
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Publication date
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Publication of EP0353136A1 publication Critical patent/EP0353136A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps

Definitions

  • the present invention relates generally to transformers, and it relates more particularly to those in which it is used, for at least one of the coils, for example that of the primary, a carcass comprising a tubular body, suitable for to receive, externally, such a coil, and to be traversed, internally, by the corresponding magnetic circuit, with, at each of the ends of this tubular body, for buttressing said coil, a flange.
  • the present invention relates to the case where, in the case of a leakage transformer, there must also be involved, between the primary and the secondary, branch circuits, or shunts, which, each formed of a stack sheet metal strips, are intended to short-circuit part of the magnetic flux.
  • Such leakage transformers find their application in particular for serving discharge lamps, the holding voltage of which is different from that of ignition.
  • the sheet metal plates constituting these derivative circuits are assembled in packages by an adhesive joint or an adhesive tape, and, inserted in the manner of shims in the magnetic circuit, the corresponding packages are isolated from the latter by other shims, paper or any other insulating material.
  • transformers thus produced do not lend themselves to mechanization of their assembly, to the detriment of their cost.
  • the present invention generally relates to a transformer carcass capable, on the contrary, of allowing, if desired, such mechanization, and also leading to other advantages; it also relates to a transformer implementing such a carcass.
  • the carcass for transformer according to the invention is of the type comprising a tubular body, suitable for receiving, externally, a coil, and for being traversed, internally, by a magnetic circuit, with, at each of the ends of said tubular body, for countering said coil, a flange, and it is generally characterized in that at least one of the flanges that it comprises has at least one housing suitable for receiving a branch circuit.
  • this branch circuit is prevented from being the object of any displacement, which guarantees the durability of the initial adjustments.
  • At the bottom of the housing thus implemented projects at least one pin, for force engagement thereon, of the branch circuit concerned.
  • the transformer 10 which, in the embodiment illustrated in Figure 1, is attached to a support 11, comprises, engaged on the middle leg, not visible in this FIG. 1, of a magnetic circuit 12 moreover forming a frame around the assembly and constituted in the usual way of a stack of sheets, on the one hand, a primary coil 13, and, on the other hand, at least one secondary coil 14.
  • two secondary coils 14, each arranged respectively on either side of the primary coil 13, are provided.
  • the primary coil 13 is established on a carcass 15.
  • the carcass 15 itself comprises a tubular body 16, of generally quadrangular cross section, clean to receive, externally, the coil 13 concerned, and to be traversed, internally, by the associated magnetic circuit 12, and, more precisely, by the median leg thereof, with, at each end of this tubular body 16, to butt the coil 13, a flange 18.
  • the tubular body 16 has, internally, projecting, two tongues 19, for proper maintenance of the magnetic circuit 12.
  • At least one of the flanges 18 has at least one housing 20 suitable for receiving a branch circuit 21.
  • this branch circuit 21 is constituted by a stack of sheet metal strips 22, which, all similar, have a quadrangular contour, and, in practice, rectangular.
  • each of the flanges 18 of the carcass 15 has, on its face opposite to the other, two housings 20, which, arranged parallel to each other, each extend respectively on either side of the corresponding outlet of the tubular body 16, and each of which is suitable for receiving a branch circuit 21.
  • These housings 20, all identical, have a generally quadrangular contour, like the branch circuits 21.
  • each of them is delimited by wall elements 24 established from place to place along its contour.
  • these are square wall elements which, established at the corners of the corresponding contour, extend substantially perpendicular to the flange 18 concerned.
  • these wall elements 24 directly border the corresponding edges of the flanges 18.
  • the wall elements 24 delimiting the housings 20 thus provided on the flanges 18 extend generally perpendicular to these flanges 18, so that these housings 20 are advantageously freely open perpendicular to these flanges 18, which facilitates the installation of branch circuits therein 21.
  • each of these housings 20 projects, perpendicular to this bottom, and therefore to the corresponding flange 18, at least one pin 27, for engagement, by force, on it, of the derivative circuit 21 concerned, the sheet metal strips 22 constituting this derivative circuit 21 each having themselves, in correspondence, a bore 28 specific to their engagement on such a pin 27.
  • this pin 27 has a cruciform section, and, at their free end, the arms which constitute it are each assigned a chamfer 30, to facilitate the engagement, on it, of the branch circuit 21.
  • this commitment can be made, unitarily, for the whole of such a branch circuit 21, or, lamella by lamella, for the various lamellae 22 constituting it.
  • each housing 20 has only one pin 27, its wall elements 24 advantageously oppose any rotation of the branch circuit 21 around such a pin 27, and thus prevent this derivative circuit 21 inadvertently coming into contact with the magnetic circuit 12.
  • the spaces separating one from the other these wall elements 24 facilitate the subsequent coating of the assembly in resin, by allowing penetration of this resin into the housing 20, and therefore coating of the branch circuit. 21 corresponding to perfect the holding thereof and to prevent it from vibrating.
  • At least one of the flanges 18 of the carcass 15, and in practice each of these, has, projecting, at least one boss 32, which, perpendicular to these flanges 18, and therefore parallel to the axis of the tubular body 16 extends slightly beyond the corresponding housings 20.
  • each flange 18 each arranged respectively on either side of the corresponding outlet of the tubular body 16, on two opposite edges of this outlet, between the corresponding housings 20, two bosses 32.
  • each of them is constituted, on the one hand, by an extension 33 which has, in its median part, a flange 34 bordering the corresponding edge of the outlet of the tubular body 16, in alignment with the corresponding wall thereof , and, on the other hand, a cheek 35 connecting, at right angles, in the manner of a stiffening rib, this rim 34 and this extension 33 to the flange 18 concerned, parallel to the previous cheeks 25.
  • bosses 32 advantageously make it possible to always maintain the derivative circuits 21 at the same distance from these coils.
  • At least one of the flanges 18 of the carcass 15, and in practice each of these, has at least one lug 37, the bore 38 of which opens out laterally.
  • the flanges 18 each have, in correspondence with one another, two ears 37, which, each disposed respectively at the ends of the same edge of such a flange 18, are formed by lateral extensions thereof.
  • the holes 38 of these ears 37 extend back to back.
  • the ears 37 thus provided on the carcass 15 according to the invention are suitable for the passage of the wires necessary for the wiring of the coils 14, and, by removing these wires both from the coil 13 and from the magnetic circuit 12, they allow use naked threads for their constitution.

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

Abstract

The frame concerned is of the kind comprising a tubular body (16) suitable to receive, externally, a coil, and to be crossed, internally, by a magnetic circuit, with, at each of the ends of this tubular body (16) in order to buttress the said coil, a flange (18). According to the invention, one at least of these flanges (18) has at least one housing (20) suitable to receive a branched circuit (21). Application to leakage-flux transformers. <IMAGE>

Description

La présente invention concerne d'une manière générale les transformateurs, et elle vise plus particulièrement ceux dans lesquels il est mis en oeuvre, pour l'une au moins des bobines, par exemple celle du primaire, une carcasse comportant un corps tubulaire, propre à recevoir, extérieurement, une telle bobine, et à être traversé, intérieurement, par le circuit magnétique correspondant, avec, à chacune des extrémités de ce corps tubulaire, pour contrebuter ladite bobine, un flasque.The present invention relates generally to transformers, and it relates more particularly to those in which it is used, for at least one of the coils, for example that of the primary, a carcass comprising a tubular body, suitable for to receive, externally, such a coil, and to be traversed, internally, by the corresponding magnetic circuit, with, at each of the ends of this tubular body, for buttressing said coil, a flange.

Plus précisément, encore, la présente invention concerne le cas où, s'agissant d'un transformateur à fuite, doivent en outre intervenir, entre le primaire et le secondaire, des circuits dérivatifs, ou shunts, qui, formés chacun d'un empilage de lamelles de tôle, sont destinés à court-circuiter une partie du flux magnétique.More precisely, again, the present invention relates to the case where, in the case of a leakage transformer, there must also be involved, between the primary and the secondary, branch circuits, or shunts, which, each formed of a stack sheet metal strips, are intended to short-circuit part of the magnetic flux.

De tels transformateurs à fuite trouvent notamment leur application pour la desserte de lampes à décharge, dont la tension de maintien est différente de celle d'amorçage.Such leakage transformers find their application in particular for serving discharge lamps, the holding voltage of which is different from that of ignition.

Le problème, en l'espèce, tient à l'implantation et au maintien des circuits dérivatifs.The problem here is the establishment and maintenance of branch circuits.

En effet, tout en intervenant dans le circuit magnétique, ils ne doivent pas avoir de contact avec celui-ci.Indeed, while intervening in the magnetic circuit, they must not have contact with it.

A défaut, il en résulterait de manière intempestive une modification des réglages initialement effectués.Otherwise, it would inadvertently result in a modification of the settings initially made.

Le plus souvent, à ce jour, les lamelles de tôle constitutives de ces circuits dérivatifs sont rassemblées en paquets par un joint de colle ou un ruban adhésif, et, insérés à la manière de cales dans le circuit magnétique, les paquets correspondants sont isolés de ce dernier par d'autres cales, en papier ou en une autre quelconque matière isolante.Most often, to date, the sheet metal plates constituting these derivative circuits are assembled in packages by an adhesive joint or an adhesive tape, and, inserted in the manner of shims in the magnetic circuit, the corresponding packages are isolated from the latter by other shims, paper or any other insulating material.

Les transformateurs ainsi réalisés se prêtent mal à une mécanisation de leur montage, au détriment de leur coût.The transformers thus produced do not lend themselves to mechanization of their assembly, to the detriment of their cost.

La présente invention a d'une manière générale pour objet une carcasse pour transformateur susceptible, au contraire, de permettre, si désiré, une telle mécanisation, et conduisant en outre à d'autres avantages ; elle a encore pour objet un transformateur mettant en oeuvre une telle carcasse.The present invention generally relates to a transformer carcass capable, on the contrary, of allowing, if desired, such mechanization, and also leading to other advantages; it also relates to a transformer implementing such a carcass.

La carcasse pour transformateur suivant l'invention est du genre comportant un corps tubulaire, propre à recevoir, extérieurement, une bobine, et à être traversé, intérieurement, par un circuit magnétique, avec, à chacune des extrémités dudit corps tubulaire, pour contrebuter ladite bobine, un flasque, et elle est d'une manière générale caractérisée en ce que l'un au moins des flasques qu'elle comporte présente au moins un logement propre à la réception d'un circuit dérivatif.The carcass for transformer according to the invention is of the type comprising a tubular body, suitable for receiving, externally, a coil, and for being traversed, internally, by a magnetic circuit, with, at each of the ends of said tubular body, for countering said coil, a flange, and it is generally characterized in that at least one of the flanges that it comprises has at least one housing suitable for receiving a branch circuit.

Ainsi confiné par un tel logement, ce circuit dérivatif est empêché d'être l'objet d'un quelconque déplacement, ce qui garantit la pérennité des réglages initiaux.Thus confined by such a housing, this branch circuit is prevented from being the object of any displacement, which guarantees the durability of the initial adjustments.

De préférence, sur le fond du logement ainsi mis en oeuvre fait saillie au moins un pion, pour engagement à force, sur celui-ci, du circuit dérivatif concerné.Preferably, at the bottom of the housing thus implemented projects at least one pin, for force engagement thereon, of the branch circuit concerned.

Le maintien de ce circuit dérivatif résulte ainsi avantageusement des seules caractéristiques structurelles de la carcasse pour transformateur suivant l'invention, à l'exclusion de tout autre accessoire.Maintaining this branch circuit thus advantageously results from the only structural characteristics of the carcass for transformer according to the invention, to the exclusion of any other accessory.

Outre l'économie qui en résulte, il est avantageusement possible de mécaniser la mise en place d'un circuit dérivatif dans son logement, soit unitairement, soit lamelle par lamelle, et il est également avantageusement possible de mécaniser les opérations ensuite nécessaires pour la mise en place des autres constituants du transformateur concerné, sans que, au cours des manipulations correspondantes, il y ait un quelconque risque de voir ce circuit dérivatif faire intempestivement obstruction, en raison d'un quelconque déplacement.In addition to the resulting economy, it is advantageously possible to mechanize the installation of a branch circuit in its housing, either individually or lamella by lamella, and it is also advantageously possible to mechanize the operations then necessary for the implementation in place of the other constituents of the transformer concerned, without, during the corresponding manipulations, there is any risk of seeing this branch circuit inadvertently obstruct, due to any displacement.

Les caractéristiques et avantages de l'invention 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'un transformateur suivant l'invention ;
  • la figure 2 est, à échelle supérieure, et avec un arrachement local, une vue en perspective de la carcasse mise en oeuvre dans ce transformateur ;
  • la figure 3 est, à échelle différente, une vue en élévation, suivant la flèche III de la figure 2, de cette carcasse ;
  • la figure 4 en est une vue en plan, suivant la flèche IV de la figure 3 ;
  • la figure 5 en est une vue en coupe axiale, suivant la ligne brisée V-V de la figure 3 ;
  • la figure 6 reprend, à échelle supérieure, le détail de la figure 5 repéré par un encart VI sur cette figure 5.
The characteristics and advantages of the invention will become apparent 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 according to the invention;
  • Figure 2 is, on a larger scale, and with a local cutaway, a perspective view of the carcass used in this transformer;
  • Figure 3 is, on a different scale, an elevational view, along arrow III of Figure 2, of this carcass;
  • Figure 4 is a plan view, along arrow IV of Figure 3;
  • Figure 5 is an axial sectional view along the broken line VV of Figure 3;
  • FIG. 6 shows, on a larger scale, the detail of FIG. 5 identified by an insert VI in this FIG. 5.

Tel qu'illustré sur ces figures, et de manière connue en soi, le transformateur 10 suivant l'invention, qui, dans la forme de mise en oeuvre illustrée à la figure 1, est rapporté sur un support 11, comporte, engagées sur le jambage médian, non visible sur cette figure 1, d'un circuit magnétique 12 formant par ailleurs un cadre autour de l'ensemble et constitué de manière usuelle d'un empilage de tôles, d'une part, une bobine primaire 13, et, d'autre part, au moins une bobine secondaire 14.As illustrated in these figures, and in a manner known per se, the transformer 10 according to the invention, which, in the embodiment illustrated in Figure 1, is attached to a support 11, comprises, engaged on the middle leg, not visible in this FIG. 1, of a magnetic circuit 12 moreover forming a frame around the assembly and constituted in the usual way of a stack of sheets, on the one hand, a primary coil 13, and, on the other hand, at least one secondary coil 14.

Dans la forme de réalisation représentée, deux bobines secondaires 14, disposées chacune respectivement de part et d'autre de la bobine primaire 13, sont prévues.In the embodiment shown, two secondary coils 14, each arranged respectively on either side of the primary coil 13, are provided.

Mais, au moins dans certains cas, il peut y en avoir qu'une seule.But, at least in some cases, there can be only one.

Tandis que les deux bobines secondaires 14 ici mises en oeuvre sont, par exemple, établies chacune sur un caniveau, la bobine primaire 13 est établie sur une carcasse 15.While the two secondary coils 14 used here are, for example, each established on a channel, the primary coil 13 is established on a carcass 15.

Ainsi qu'il est mieux visible sur les figures 2 à 6, sur lesquelles elle est representée isolément, et de manière également connue en soi, la carcasse 15 comporte, elle-même, un corps tubulaire 16, de section transversale globalement quadrangulaire, propre à recevoir, extérieurement, la bobine 13 concernée, et à être traversé, intérieurement, par le circuit magnétique 12 associé, et, plus précisément, par le jambage médian de celui-ci, avec, à chacune des extrémités de ce corps tubulaire 16, pour contrebuter la bobine 13, un flasque 18.As is better visible in Figures 2 to 6, in which it is shown in isolation, and in a manner also known per se, the carcass 15 itself comprises a tubular body 16, of generally quadrangular cross section, clean to receive, externally, the coil 13 concerned, and to be traversed, internally, by the associated magnetic circuit 12, and, more precisely, by the median leg thereof, with, at each end of this tubular body 16, to butt the coil 13, a flange 18.

Dans la forme de réalisation représentée, le corps tubulaire 16 présente, intérieurement, en saillie, deux languettes 19, pour un maintien convenable du circuit magnétique 12.In the embodiment shown, the tubular body 16 has, internally, projecting, two tongues 19, for proper maintenance of the magnetic circuit 12.

Suivant l'invention, l'un au moins des flasques 18 présente au moins un logement 20 propre à la réception d'un circuit dérivatif 21.According to the invention, at least one of the flanges 18 has at least one housing 20 suitable for receiving a branch circuit 21.

De manière connue en soi, ce circuit dérivatif 21 est constitué par un empilage de lamelles de tôle 22, qui, toutes semblables, ont un contour quadrangulaire, et, en pratique, rectangulaire.In a manner known per se, this branch circuit 21 is constituted by a stack of sheet metal strips 22, which, all similar, have a quadrangular contour, and, in practice, rectangular.

Dans la forme de réalisation représentée, quatre circuits dérivatifs 21 sont ainsi à mettre en oeuvre.In the embodiment shown, four branch circuits 21 are thus to be implemented.

Pour ce faire, et suivant l'invention, chacun des flasques 18 de la carcasse 15 présente, sur sa face opposée à l'autre, deux logements 20, qui, disposés parallèlement l'un à l'autre, s'étendent chacun respectivement de part et d'autre du débouché correspondant du corps tubulaire 16, et dont chacun est propre à recevoir un circuit dérivatif 21.To do this, and according to the invention, each of the flanges 18 of the carcass 15 has, on its face opposite to the other, two housings 20, which, arranged parallel to each other, each extend respectively on either side of the corresponding outlet of the tubular body 16, and each of which is suitable for receiving a branch circuit 21.

Ces logements 20, tous identiques, sont de contour globalement quadrangulaire, à l'image des circuits dérivatifs 21.These housings 20, all identical, have a generally quadrangular contour, like the branch circuits 21.

Dans la forme de réalisation représentée, chacun d'eux est délimité par des éléments de paroi 24 établis de place en place le long de son contour.In the embodiment shown, each of them is delimited by wall elements 24 established from place to place along its contour.

Il s'agit, en pratique, d'éléments de paroi en équerre, qui, établis aux angles du contour correspondant, s'étendent sensiblement perpendiculairement au flasque 18 concerné.In practice, these are square wall elements which, established at the corners of the corresponding contour, extend substantially perpendicular to the flange 18 concerned.

Dans le sens de l'allongement des logements 20, ces éléments de paroi 24 bordent directement les bords correspondants des flasques 18.In the direction of the elongation of the housings 20, these wall elements 24 directly border the corresponding edges of the flanges 18.

Dans le sens perpendiculaire à ce sens d'allongement, ils sont au contraire établis en retrait par rapport aux bords correspondants des flasques 18, en étant raccordés à ceux-ci par des joues 25 formant nervures de raidissement.In the direction perpendicular to this direction of elongation, they are, on the contrary, set back with respect to the corresponding edges of the flanges 18, by being connected to these by cheeks 25 forming stiffening ribs.

Quoi qu'il en soit, les éléments de paroi 24 délimitant les logements 20 ainsi prévus sur les flasques 18 s'étendent globalement perpendiculairement à ces flasques 18, en sorte que ces logements 20 sont avantageusement librement ouverts perpendiculairement à ces flasques 18, ce qui y facilite la mise en place des circuits dérivatifs 21.Anyway, the wall elements 24 delimiting the housings 20 thus provided on the flanges 18 extend generally perpendicular to these flanges 18, so that these housings 20 are advantageously freely open perpendicular to these flanges 18, which facilitates the installation of branch circuits therein 21.

De préférence, et tel que représenté sur le fond de chacun de ces logements 20, fait saillie, perpendiculairement à ce fond, et donc au flasque 18 correspondant, au moins un pion 27, pour engagement, à force, sur celui-ci, du circuit dérivatif 21 concerné, les lamelles de tôle 22 constitutives de ce circuit dérivatif 21 présentant elles-mêmes chacune, en correspondance, un perçage 28 propre à leur engagement sur un tel pion 27.Preferably, and as shown on the bottom of each of these housings 20, projects, perpendicular to this bottom, and therefore to the corresponding flange 18, at least one pin 27, for engagement, by force, on it, of the derivative circuit 21 concerned, the sheet metal strips 22 constituting this derivative circuit 21 each having themselves, in correspondence, a bore 28 specific to their engagement on such a pin 27.

Dans la forme de réalisation représentée, un seul pion 27 est ainsi mis en oeuvre.In the embodiment shown, a single pin 27 is thus used.

En pratique, ce pion 27 a une section cruciforme, et, à leur extrémité libre, les bras qui le constituent sont chacun affectés d'un chanfrein 30, pour faciliter l'engagement, sur lui, du circuit dérivatif 21.In practice, this pin 27 has a cruciform section, and, at their free end, the arms which constitute it are each assigned a chamfer 30, to facilitate the engagement, on it, of the branch circuit 21.

Ainsi qu'il est aisé de le comprendre, cet engagement peut se faire, unitairement, pour l'ensemble d'un tel circuit dérivatif 21, ou, lamelle par lamelle, pour les diverses lamelles 22 constitutives de celui-ci.As is easy to understand, this commitment can be made, unitarily, for the whole of such a branch circuit 21, or, lamella by lamella, for the various lamellae 22 constituting it.

Ainsi qu'il est aisé, également, de le comprendre, lorsque, comme en l'espèce, chaque logement 20 ne comporte qu'un seul pion 27, ses éléments de paroi 24 s'opposent avantageusement à toute rotation du circuit dérivatif 21 autour d'un tel pion 27, et évitent ainsi que ce circuit dérivatif 21 vienne intempestivement au contact du circuit magnétique 12.As it is easy, also, to understand it, when, as in this case, each housing 20 has only one pin 27, its wall elements 24 advantageously oppose any rotation of the branch circuit 21 around such a pin 27, and thus prevent this derivative circuit 21 inadvertently coming into contact with the magnetic circuit 12.

Les espaces séparant par ailleurs l'un de l'autre ces éléments de paroi 24 facilitent l'enrobage ultérieur de l'ensemble dans de la résine, en autorisant une pénétration de cette résine dans le logement 20, et donc un enrobage du circuit dérivatif 21 correspondant de nature à parfaire la tenue de celui-ci et à l'empêcher de vibrer.The spaces separating one from the other these wall elements 24 facilitate the subsequent coating of the assembly in resin, by allowing penetration of this resin into the housing 20, and therefore coating of the branch circuit. 21 corresponding to perfect the holding thereof and to prevent it from vibrating.

Par ailleurs, l'un au moins des flasques 18 de la carcasse 15, et en pratique chacun de ceux-ci, présente, en saillie, au moins un bossage 32, qui, perpendiculairement à ces flasques 18, et, donc, parallèlement à l'axe du corps tubulaire 16, s'étend légèrement au-delà des logements 20 correspondants.Furthermore, at least one of the flanges 18 of the carcass 15, and in practice each of these, has, projecting, at least one boss 32, which, perpendicular to these flanges 18, and therefore parallel to the axis of the tubular body 16 extends slightly beyond the corresponding housings 20.

En pratique, il y a ainsi, pour chaque flasque 18, disposés chacun respectivement de part et d'autre du débouché correspondant du corps tubulaire 16, sur deux bords opposés de ce débouché, entre les logements 20 correspondants, deux bossages 32.In practice, there are thus, for each flange 18, each arranged respectively on either side of the corresponding outlet of the tubular body 16, on two opposite edges of this outlet, between the corresponding housings 20, two bosses 32.

Chacun d'eux est constitué, d'une part, par un prolongement 33 que présente, dans sa partie médiane, un rebord 34 bordant le bord correspondant du débouché du corps tubulaire 16, dans l'alignement de la paroi correspondante de celui-ci, et, d'autre part, une joue 35 reliant, en équerre, à la manière d'une nervure de raidissement, ce rebord 34 et ce prolongement 33 au flasque 18 concerné, parallèlement aux joues 25 précédentes.Each of them is constituted, on the one hand, by an extension 33 which has, in its median part, a flange 34 bordering the corresponding edge of the outlet of the tubular body 16, in alignment with the corresponding wall thereof , and, on the other hand, a cheek 35 connecting, at right angles, in the manner of a stiffening rib, this rim 34 and this extension 33 to the flange 18 concerned, parallel to the previous cheeks 25.

La saillie H que fait sur chaque flasque 18 le bossage 32 ainsi porté par celui-ci est supérieure à celle H′ que font corollairement sur ce flasque 18 les éléments de paroi 24 constitutifs des logements 20 correspondants.The projection H made on each flange 18 by the boss 32 thus carried by the latter is greater than that H ′ which corollary to this flange 18 are the wall elements 24 constituting the corresponding housings 20.

Ainsi qu'il est aisé de le comprendre, destinés à coopérer en butée avec les bobines secondaires 14, ces bossages 32 permettent avantageusement de maintenir toujours à la même distance de ces bobines 14 les circuits dérivatifs 21.As is easy to understand, intended to cooperate in abutment with the secondary coils 14, these bosses 32 advantageously make it possible to always maintain the derivative circuits 21 at the same distance from these coils.

Enfin, dans la forme de réalisation représentée, l'un au moins des flasques 18 de la carcasse 15, et en pratique chacun de ceux-ci, présente au moins une oreille 37 dont le perçage 38 débouche latéralement.Finally, in the embodiment shown, at least one of the flanges 18 of the carcass 15, and in practice each of these, has at least one lug 37, the bore 38 of which opens out laterally.

En pratique, dans cette forme de réalisation, les flasques 18 présentent chacun, en correspondance l'un avec l'autre, deux oreilles 37, qui, disposées chacune respectivement aux extrémités d'un même bord d'un tel flasque 18, sont formées par des prolongements latéraux de celui-ci.In practice, in this embodiment, the flanges 18 each have, in correspondence with one another, two ears 37, which, each disposed respectively at the ends of the same edge of such a flange 18, are formed by lateral extensions thereof.

Les perçages 38 de ces oreilles 37 s'étendent dos à dos.The holes 38 of these ears 37 extend back to back.

En outre, elles sont reliées chacune par une nervure de raidissement 40 à l'élément de paroi 24 proche du logement 20 correspondant.In addition, they are each connected by a stiffening rib 40 to the wall element 24 near the corresponding housing 20.

De manière avantageuse, les oreilles 37 ainsi prévues sur la carcasse 15 suivant l'invention sont propres au passage des fils nécessaires au câblage des bobines 14, et, en écartant ces fils tant de la bobine 13 que du circuit magnétique 12, elles permettent d'utiliser, pour leur constitution, des fils nus.Advantageously, the ears 37 thus provided on the carcass 15 according to the invention are suitable for the passage of the wires necessary for the wiring of the coils 14, and, by removing these wires both from the coil 13 and from the magnetic circuit 12, they allow use naked threads for their constitution.

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

Claims (13)

1. Carcasse pour transformateur, du genre comportant un corps tubulaire (16), propre à recevoir, extérieurement, une bobine (13), et à être traversé, intérieurement, par un circuit magnétique (12), avec, à chacune des extrémités dudit corps tubulaire (16), pour contrebuter ladite bobine (13), un flasque (18), caractérisée en ce que l'un au moins des flasques qu'elle comporte présente au moins un logement (20) propre à la réception d'un circuit dérivatif (21).1. Carcass for transformer, of the type comprising a tubular body (16), adapted to receive, externally, a coil (13), and to be traversed, internally, by a magnetic circuit (12), with, at each end of said tubular body (16), for abutting said coil (13), a flange (18), characterized in that at least one of the flanges that it comprises has at least one housing (20) suitable for receiving a derivative circuit (21). 2. Carcasse suivant la revendication 1, caractérisé en ce que ledit logement (20) est de contour globalement quadrangulaire.2. Carcass according to claim 1, characterized in that said housing (20) is of generally quadrangular contour. 3. Carcasse suivant l'une quelconque des revendications 1, 2, caractérisée en ce que ledit logement (20) est délimité par des éléments de paroi (24) établis de place en place le long de son contour.3. Carcass according to any one of claims 1, 2, characterized in that said housing (20) is delimited by wall elements (24) established from place to place along its contour. 4. Carcasse suivant les revendications 2, 3, prises conjointement, caractérisée en ce que ledit logement (20) est délimité par des éléments de paroi en équerre (24) établis aux angles de son contour.4. Carcass according to claims 2, 3, taken together, characterized in that said housing (20) is delimited by square wall elements (24) established at the corners of its outline. 5. Carcasse suivant l'une quelconque des revendications 1 à 4, caractérisée en ce que ledit logement (20) est librement ouvert perpendiculairement au flasque (18).5. Carcass according to any one of claims 1 to 4, characterized in that said housing (20) is freely open perpendicular to the flange (18). 6. Carcasse suivant l'une quelconque des revendications 1 à 4, caractérisée en ce que, sur le fond dudit logement (20) fait saillie au moins un pion (27), pour engagement à force, sur celui-ci, du circuit dérivatif (21) concerné.6. Carcass according to any one of claims 1 to 4, characterized in that, on the bottom of said housing (20) protrudes at least one pin (27), for force engagement, thereon, of the branch circuit (21) concerned. 7. Carcasse suivant la revendication 6, caractérisé en ce que, sur le fond dudit logement (20) ne fait saillie qu'un seul pion (27).7. Carcass according to claim 6, characterized in that, on the bottom of said housing (20) protrudes only one pin (27). 8. Carcasse suivant l'une quelconque des revendications 6, 7, caractérisée en ce que ledit pion (27) a une section cruciforme.8. Carcass according to any one of claims 6, 7, characterized in that said pin (27) has a cruciform section. 9. Carcasse suivant l'une quelconque des revendications 1 à 8, caractérisée en ce que chacun de ses flasques (18) présente deux logements (20), qui, disposés parallèlement l'un à l'autre, s'étendent chacun respectivement de part et d'autre du débouché correspondant du corps tubulaire (16), et dont chacun est propre à recevoir un circuit dérivatif (21).9. Carcass according to any one of claims 1 to 8, characterized in that each of its flanges (18) has two housings (20), which, arranged parallel to each other, each extend respectively on either side of the corresponding outlet of the tubular body (16), and each of which is suitable for receive a branch circuit (21). 10. Carcasse suivant l'une quelconque des revendications 1 à 9, caractérisée en ce que l'un au moins de ses flasques (18) présente, en saillie, au moins un bossage (32), qui, parallèlement à l'axe du corps tubulaire (16), s'étend légèrement au-delà du ou des logements (20) correspondants.10. Carcass according to any one of claims 1 to 9, characterized in that at least one of its flanges (18) has, projecting, at least one boss (32), which, parallel to the axis of the tubular body (16), extends slightly beyond the corresponding housing (s) (20). 11. Carcasse suivant l'une quelconque des revendications 1 à 10, caractérisée en ce que l'un au moins de ses flasques (18) présente au moins une oreille (37) dont le perçage (38) débouche latéralement.11. Carcass according to any one of claims 1 to 10, characterized in that at least one of its flanges (18) has at least one lug (37) whose bore (38) opens laterally. 12. Carcasse suivant la revendication 11, caractérisée en ce que chacun de ses flasques (18) présente deux oreilles (37) disposées chacune respectivement aux extrémités d'un même bord d'un tel flasque (18).12. Carcass according to claim 11, characterized in that each of its flanges (18) has two ears (37) each disposed respectively at the ends of the same edge of such a flange (18). 13. Transformateur du genre comportant une carcasse (15), caractérisé en ce que ladite carcasse (15) est conforme à l'une quelconque des revendications 1 à 12.13. A transformer of the kind comprising a carcass (15), characterized in that said carcass (15) conforms to any one of claims 1 to 12.
EP89402091A 1988-07-25 1989-07-24 Transformer frame and transformer having such a frame Withdrawn EP0353136A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810020A FR2634583B1 (en) 1988-07-25 1988-07-25 CARCASS FOR TRANSFORMER, AND TRANSFORMER COMPRISING SUCH A CARCASS
FR8810020 1988-07-25

Publications (1)

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EP0353136A1 true EP0353136A1 (en) 1990-01-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402091A Withdrawn EP0353136A1 (en) 1988-07-25 1989-07-24 Transformer frame and transformer having such a frame

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EP (1) EP0353136A1 (en)
FR (1) FR2634583B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146860A (en) * 1977-07-25 1979-03-27 Universal Manufacturing Corporation Electrical coil assembly
DE8633338U1 (en) * 1986-12-12 1987-02-12 May & Christe Gmbh, Transformatorenwerke, 6370 Oberursel Leakage field transformer for supplying magnetrons

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100712A (en) * 1980-12-15 1982-06-23 Tokyo Electric Co Ltd Electromagnetic device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146860A (en) * 1977-07-25 1979-03-27 Universal Manufacturing Corporation Electrical coil assembly
DE8633338U1 (en) * 1986-12-12 1987-02-12 May & Christe Gmbh, Transformatorenwerke, 6370 Oberursel Leakage field transformer for supplying magnetrons

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 185 (E-132)(1063) 21 septembre 1982, & JP-A-57 100712 (TOKYO DENKI K.K.) 23 juin 1982, *

Also Published As

Publication number Publication date
FR2634583B1 (en) 1995-03-31
FR2634583A1 (en) 1990-01-26

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