EP1042768B1 - Planar transformer winding - Google Patents
Planar transformer winding Download PDFInfo
- Publication number
- EP1042768B1 EP1042768B1 EP98963613A EP98963613A EP1042768B1 EP 1042768 B1 EP1042768 B1 EP 1042768B1 EP 98963613 A EP98963613 A EP 98963613A EP 98963613 A EP98963613 A EP 98963613A EP 1042768 B1 EP1042768 B1 EP 1042768B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- turns
- primary
- windings
- conductive
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
Definitions
- the present invention relates to a transformer winding planar with at least one primary winding and at least one secondary winding, and more particularly such a winding of the type whose primary and secondary windings include turns produced in the form of conductive tracks formed on the faces of a flat insulating support or several planar insulating supports stacked and interconnected, as necessary, by conductive holes passing through flat insulating supports.
- a transformer winding in planar technology, consists of at least two portions of tracks conductive carried out on different faces of one or more supports insulating planes stacked so as to be able to present terminals of connection arranged on the periphery of the transformer, this in order to facilitate the electrical connection of the transformer.
- the portions of tracks conductors of the same winding follow spirals of the same direction and are electrically connected to each other to ensure continuity of the winding, by the inner ends of their spirals and, as of need, by some of the outer ends of their spirals at by means of conductive holes passing through the insulating support or supports.
- the conductive tracks of the windings primary and secondary of a transformer are nested on the supports insulating planes so that we find when moving from the outside towards the center of a transformer, on any of the insulating supports plans, alternating primary and secondary turns.
- the present invention aims to overcome these drawbacks.
- the invention relates to a transformer winding planar with at least one primary winding and at least one secondary winding with turns made in the form of tracks conductive formed on the faces of an insulating support and connected between them by means of conductive holes drilled in the insulating support, characterized by the fact that the portions of the primary windings and secondary carried by the same face of the insulating support are grouped by winding, in two distinct nested areas, of shapes one of the zones grouping side by side coils or portions of turns of the primary winding and the other zone grouping side by side turns or portions of turns of the secondary winding.
- a transformer produced according to the invention can therefore comprise less than layers of supports, even if it generally comprises several, and by therefore be less expensive and less bulky.
- each portion winding forms a turn which extends over approximately 360 °.
- This arrangement has the advantage of being simple, since it leads easily to full turns when two winding portions are electrically connected to each other by a conductive hole joining the inner ends of their turns.
- At least one of the windings is formed on each side of the support of a plurality of winding portions joined successively from one face to the other of the support in series by conductive holes.
- the turns of each winding have shapes such that they provide for overlapping recesses in which pass the conductive holes of the other winding.
- the present invention also relates to a multiple winding for planar transformer, comprising a plurality of windings such as described above arranged one above the other on a plurality of assembled supports, primary and secondary windings respectively of said coils being electrically connected to each other other.
- Said windings can then be connected either in series or in parallel.
- Figure 1 shows two identical elementary windings 1 and 2 united in a multiple winding.
- Each of the windings is formed by a nested primary winding and a secondary winding, each being partially produced on each of the upper and lower faces, of the support on which this elementary winding is formed.
- the primary winding for example, is formed of a first section conductor 3 extending approximately 360 ° around the winding axis, for form a first turn on the upper face of the support, and a second conductive section 4 also extending approximately 360 ° around the axis of the winding, to form a second turn on the underside of the support.
- the secondary winding is formed of a first conductive section 5 extending approximately 360 ° around the axis of the winding, to form a first turn on the upper face of the support, and a second conductive section 6 also extending approximately over 360 ° around the winding axis, to form a second turn on the face support.
- each winding has only one turn per side, this means that each turn of each winding passes between the ends of the turn of the other winding formed on the same face of the support.
- each turn has a free end which will be described below the connection.
- each turn of each winding is located, on one side of the support, facing the other end of the turn of the same winding, on the other side of the support.
- These opposite ends are connected by conductive holes 7 ( Figure 2) to ensure continuity of each winding from one of its free ends to the other.
- each winding has shapes such that they spare 8 overlapping recesses.
- the conductive holes of the other winding pass through these indentations, which ensures recovery optimal primary and secondary windings, and therefore good magnetic performance.
- the free ends of the primary winding are connected to two connecting conductors 9 and 10 (here, double), perpendicular to the plane of the support and arranged side by side.
- the free ends of the secondary winding are connected to two connecting conductors similar 11 and 12 (one of which, here, is double).
- the connecting conductors of the primary and secondary are carried out in a known manner in the form of conductive holes, when assembling the superimposed supports.
- Figure 4 shows however a multiple winding, primary or secondary, where three elementary windings are connected in series on four conductive holes 13a-13d.
- the arrangement of Figure 4 does not differ not otherwise than that of FIG. 1 and will therefore not be described further in detail.
- the first turn 22a extends over the upper face of the support from the conductive hole 21c, outside the winding, up to inside the winding.
- the winding then continues through a hole conductor 23a, where it passes through the support.
- the second turn 22b extends so on the underside of the support, from the conductive hole 23a to another conductive hole 23b, near the conductive hole 21c.
- the third turn 22c extends again to the upper face, inside of the turn 22a, from the conductive hole 23b to the conductive hole 23c at near the conductive hole 23a.
- the winding thus continues in series by the turn 22d, the conductive hole 23d, the turn 22e, the conductive hole 23e, and the turn 22f, connected to the conductive hole 21d.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Description
La présente invention concerne un bobinage pour transformateur planar comportant au moins un enroulement primaire et au moins un enroulement secondaire, et plus particulièrement un tel bobinage du type dont les enroulements primaire et secondaire comportent des spires réalisées sous la forme de pistes conductrices formées sur les faces d'un support isolant plan ou de plusieurs supports isolants plans empilés et raccordées entre elles, en tant que de besoin, par des trous conducteurs passant au travers des supports isolants plans.The present invention relates to a transformer winding planar with at least one primary winding and at least one secondary winding, and more particularly such a winding of the type whose primary and secondary windings include turns produced in the form of conductive tracks formed on the faces of a flat insulating support or several planar insulating supports stacked and interconnected, as necessary, by conductive holes passing through flat insulating supports.
En technologie planar, un enroulement de transformateur, qu'il soit primaire ou secondaire, est constitué par au moins deux portions de pistes conductrices réalisées sur des faces différentes d'un ou plusieurs supports isolants plans empilés de manière à pouvoir présenter des bornes de connexion disposées sur la périphérie du transformateur, cela afin de faciliter le raccordement électrique du transformateur. Les portions de pistes conductrices d'un même enroulement suivent des spirales de même sens et sont raccordées électriquement entre elles pour assurer la continuité de l'enroulement, par les extrémités intérieurs de leurs spirales et, en tant que de besoin, par certaines des extrémités extérieures de leurs spirales au moyen de trous conducteurs passant au travers du ou des supports isolants.In planar technology, a transformer winding, whether primary or secondary, consists of at least two portions of tracks conductive carried out on different faces of one or more supports insulating planes stacked so as to be able to present terminals of connection arranged on the periphery of the transformer, this in order to facilitate the electrical connection of the transformer. The portions of tracks conductors of the same winding follow spirals of the same direction and are electrically connected to each other to ensure continuity of the winding, by the inner ends of their spirals and, as of need, by some of the outer ends of their spirals at by means of conductive holes passing through the insulating support or supports.
Selon la pratique actuelle, les pistes conductrices des enroulements primaire et secondaire d'un transformateur sont imbriquées sur les supports isolants plans de sorte que l'on trouve, lorsque l'on se déplace de l'extérieur vers le centre d'un transformateur, sur l'un quelconque des supports isolants plans, une alternance de spires primaires et secondaires.According to current practice, the conductive tracks of the windings primary and secondary of a transformer are nested on the supports insulating planes so that we find when moving from the outside towards the center of a transformer, on any of the insulating supports plans, alternating primary and secondary turns.
Bien que donnant généralement satisfaction, cette solution présente certains inconvénients.Although generally satisfactory, this solution presents some disadvantages.
En premier lieu, lorsque l'on veut avoir des nombres de tours différents au primaire et au secondaire d'un transformateur planar, ce qui est relativement fréquent, il est nécessaire de réaliser d'abord, sur un ou plusieurs supports isolants plans empilés, des enroulements primaire et secondaire avec un même nombre de tours correspondant au plus petit des nombres de tours requis. Puis de terminer l'enroulement ayant le plus grand nombre de tours par des spires complémentaires tracées sur un ou plusieurs autres supports isolants plans. Cela peut conduire à l'utilisation d'un nombre élevé de supports isolants plans empilés alors qu'il importe de réduire le plus possible le nombre de supports isolants plans empilés pour des facilités de réalisation.First, when you want to have numbers of turns different in the primary and secondary of a planar transformer, which is relatively frequent, it is necessary to carry out first, on one or several stacked flat insulating supports, primary windings and secondary with the same number of turns corresponding to the smallest of number of turns required. Then finish the winding with the largest number of turns by complementary turns drawn on one or more other flat insulating supports. This can lead to the use of a number high level of insulating supports stacked when it is important to reduce the most possible the number of flat insulating supports stacked for ease of production.
Par ailleurs, comme les spires des enroulements primaire et secondaire sont alternées à la surface des supports isolants plans, il est nécessaire de prévoir entre elles un écartement pormettant d'assurer l'isolement électrique voulu entre les primaire et secondaire du transformateur. Comme les contraintes d'isolement électrique entre primaire et secondaire d'un transformateur sont souvent importantes, il en résulte généralement, un écartement non négligeable entre chacune des spires primaires et secondaires tracées alternativement sur la surface d'un même support isolant plan. Cet écartement interspire réduit la densité des spires, donc le nombre de spires qu'il est possible de loger sur une surface donnée de support isolant plan. Outre le fait qu'il limite les possibilités de réduire l'encombrement du transformateur, il diminue le couplage magnétique ce qui entraíne une augmentation des fuites magnétiques. Il en résulte un transformateur moins efficace que ce que l'on pourrait espérer, notamment en ce qui concerne le rendement.Furthermore, as the turns of the primary windings and secondary are alternated on the surface of the flat insulating supports, it is necessary to provide a spacing between them to ensure the desired electrical isolation between the primary and secondary of the transformer. As the electrical insulation constraints between primary and secondary of a transformer are often important, this results generally, a significant gap between each of the turns primary and secondary alternately drawn on the surface of the same flat insulating support. This interspire spacing reduces the density of the turns, so the number of turns that can be accommodated on a given surface of insulating plane support. Besides the fact that it limits the possibilities of reducing the size of the transformer, it reduces the magnetic coupling which leads to an increase in magnetic leaks. This results in a transformer less efficient than one might hope, especially regarding performance.
La présente invention vise à pallier ces inconvénients.The present invention aims to overcome these drawbacks.
A cet effet, l'invention a pour objet un bobinage pour transformateur planar comportant au moins un enroulement primaire et au moins un enroulement secondaire avec des spires réalisées sous la forme de pistes conductrices formées sur les faces d'un support isolant et raccordées entre elles au moyen de trous conducteurs percés dans le support isolant, caractérisé par le fait que les portions des enroulements primaire et secondaire portées par une même face du support isolant sont regroupées par enroulement, selon deux zones distinctes imbriquées, de formes spiralées, l'une des zones regroupant côte à côte des spires ou portions de spires de l'enroulement primaire et l'autre zone regroupant côte à côte des spires ou portions de spires de l'enroulement secondaire.To this end, the invention relates to a transformer winding planar with at least one primary winding and at least one secondary winding with turns made in the form of tracks conductive formed on the faces of an insulating support and connected between them by means of conductive holes drilled in the insulating support, characterized by the fact that the portions of the primary windings and secondary carried by the same face of the insulating support are grouped by winding, in two distinct nested areas, of shapes one of the zones grouping side by side coils or portions of turns of the primary winding and the other zone grouping side by side turns or portions of turns of the secondary winding.
Une telle structure, bien que complexe du point de vue géométrique, ne présente pas plus de difficultés, technologiquement, à être réalisée que celle de l'art antérieur.Such a structure, although geometrically complex, is no more technologically difficult to perform than that of the prior art.
En revanche, elle permet de réaliser sur les deux faces d'un même support isolant plan, un bobinage entier, comprenant des enroulements primaire et secondaire ayant des nombres de tours différents. Un transformateur réalisé selon l'invention peut donc comprendre moins de couches de supports, même s'il en comporte généralement plusieurs, et par conséquent être moins coûteux et moins volumineux.On the other hand, it makes it possible to carry out on the two faces of the same planar insulating support, a whole winding, comprising windings primary and secondary with different number of turns. A transformer produced according to the invention can therefore comprise less than layers of supports, even if it generally comprises several, and by therefore be less expensive and less bulky.
Elle permet en outre de rapprocher les spires au sein d'une même zone sur une face de support isolant plan car celles-ci appartiennent à un même enroulement primaire ou secondaire pour lequel les exigences d'isolement interspire sont toujours bien moindres que les exigences d'isolement entre enroulements primaire et secondaire. Cela permet d'améliorer la compacité du transformateur et donc de limiter ses pertes magnétiques.It also makes it possible to bring together the turns within the same area on a plane insulating support face because these belong to a same primary or secondary winding for which the requirements of interspire isolation are always much less than the requirements insulation between primary and secondary windings. This allows improve the compactness of the transformer and therefore limit its losses magnetic.
Dans un mode de réalisation particulier de l'invention, chaque portion d'enroulement forme une spire qui s'étend sur environ 360°.In a particular embodiment of the invention, each portion winding forms a turn which extends over approximately 360 °.
Cet agencement présente l'avantage d'être simple, puisqu'il conduit facilement à des spires complètes lorsque deux portions d'enroulement sont raccordées électriquement entre elles par un trou conducteur réunissant les extrémités intérieures de leurs spires.This arrangement has the advantage of being simple, since it leads easily to full turns when two winding portions are electrically connected to each other by a conductive hole joining the inner ends of their turns.
Egalement dans un mode de réalisation particulier, l'un au moins des enroulements est formé sur chaque face du support d'une pluralité de portions d'enroulements réunies successivement d'une face à l'autre du support en série par des trous conducteurs.Also in a particular embodiment, at least one of the windings is formed on each side of the support of a plurality of winding portions joined successively from one face to the other of the support in series by conductive holes.
On verra ci-après que cet agencement, lui aussi complexe géométriquement, permet de disposer de nombreuses spires de l'enroulement primaire (respectivement secondaire) en vis-à-vis de l'enroulement secondaire (respectivement primaire).We will see below that this arrangement, also complex geometrically, allows to have many turns of the primary winding (respectively secondary) opposite the secondary winding (respectively primary).
Avantageusement, les spires de chaque enroulement ont des formes telles qu'elles ménagent des renfoncements superposés dans lesquelles passent les trous conducteurs de l'autre enroulement.Advantageously, the turns of each winding have shapes such that they provide for overlapping recesses in which pass the conductive holes of the other winding.
Il est possible avec une telle disposition de superposer au mieux les enroulements primaire et secondaire, et d'améliorer ainsi les performances magnétiques du transformateur.It is possible with such an arrangement to best superimpose the primary and secondary windings, and thus improve performance transformer magnets.
La présente invention a également pour objet un bobinage multiple pour transformateur planar, comportant une pluralité de bobinages tels que décrits ci-dessus disposés les uns au-dessus des autres sur une pluralité de supports assemblés, les enroulements primaire et secondaire respectivement desdits bobinages étant électriquement reliés les uns aux autres. The present invention also relates to a multiple winding for planar transformer, comprising a plurality of windings such as described above arranged one above the other on a plurality of assembled supports, primary and secondary windings respectively of said coils being electrically connected to each other other.
Lesdits enroulements peuvent alors être reliés soit en série, soit en parallèle.Said windings can then be connected either in series or in parallel.
On peut en outre prévoir plusieurs primaires et/ou plusieurs secondaires.It is also possible to provide several primaries and / or several secondary.
On décrira maintenant, à titre d'exemple non limitatif, un mode de réalisation particulier de l'invention, en référence aux dessins schématiques annexés dans lesquels:
- la figure 1 est une vue en perspective d'un bobinage de transformateur selon l'invention;
- les figures 2 et 3 illustrent, respectivement en perspective et en vue de dessus, une portion d'enroulement selon l'invention;
- la figure 4 illustre un autre mode de réalisation d'un bobinage selon l'invention, un seul enroulement étant représenté; et
- la figure 5 est une vue en perspective d'un autre mode de réalisation de l'invention.
- Figure 1 is a perspective view of a transformer winding according to the invention;
- Figures 2 and 3 illustrate, respectively in perspective and in top view, a winding portion according to the invention;
- FIG. 4 illustrates another embodiment of a winding according to the invention, a single winding being shown; and
- Figure 5 is a perspective view of another embodiment of the invention.
On notera en premier lieu, que ne sont pas représentés aux dessins les supports isolants sur lesquels sont rapportées les pistes conductrices dont l'agencement fait l'objet de la présente invention. Ces supports sont en effet parfaitement connus en eux-mêmes, ainsi que la façon de les superposer, et de former sur leurs faces des pistes conductrices, par exemple par impression d'encre conductrice ou apport de feuille métallique.It will first be noted that the drawings are not shown the insulating supports on which the conductive tracks are attached the arrangement of which is the subject of the present invention. These supports are in effect perfectly known in themselves, as well as how to superimpose, and form conductive tracks on their faces, by for example by printing conductive ink or adding metallic foil.
La figure 1 montre deux bobinages élémentaires 1 et 2 identiques réunis en un bobinage multiple. Chacun des bobinages est formé d'un enroulement primaire et d'un enroulement secondaire imbriqués, chacun étant partiellement réalisé sur chacune des faces, supérieure et inférieure, du support sur lequel est formée ce bobinage élémentaire.Figure 1 shows two identical elementary windings 1 and 2 united in a multiple winding. Each of the windings is formed by a nested primary winding and a secondary winding, each being partially produced on each of the upper and lower faces, of the support on which this elementary winding is formed.
L'enroulement primaire, par exemple, est formé d'un premier tronçon conducteur 3 s'étendant environ sur 360° autour de l'axe du bobinage, pour former une première spire à la face supérieure du support, et d'un deuxième tronçon conducteur 4 s'étendant également environ sur 360° autour de l'axe du bobinage, pour former une deuxième spire à la face inférieure du support. De la même manière, l'enroulement secondaire est formé d'un premier tronçon conducteur 5 s'étendant environ sur 360° autour de l'axe du bobinage, pour former une première spire à la face supérieure du support, et d'un deuxième tronçon conducteur 6 s'étendant également environ sur 360° autour de l'axe du bobinage, pour former une deuxième spire à la face inférieure du support.The primary winding, for example, is formed of a first section conductor 3 extending approximately 360 ° around the winding axis, for form a first turn on the upper face of the support, and a second conductive section 4 also extending approximately 360 ° around the axis of the winding, to form a second turn on the underside of the support. In the same way, the secondary winding is formed of a first conductive section 5 extending approximately 360 ° around the axis of the winding, to form a first turn on the upper face of the support, and a second conductive section 6 also extending approximately over 360 ° around the winding axis, to form a second turn on the face support.
Les différents tronçons précités, et donc les spires qui en résultent, ne sont pas circulaires mais sensiblement hélicoïdaux, de sorte que les premières spires de chaque enroulement sont imbriquées à la face supérieure du support, de même que les deuxièmes spires à sa face inférieure. Dans le cas présent ou chaque enroulement ne comporte qu'une spire par face, ceci signifie que chaque spire de chaque enroulement passe entre les extrémités de la spire de l'autre enroulement formée sur la même face du support.The various aforementioned sections, and therefore the resulting turns, do not are not circular but substantially helical, so that the first turns of each winding are nested on the face upper of the support, as well as the second turns on its face lower. In the present case where each winding has only one turn per side, this means that each turn of each winding passes between the ends of the turn of the other winding formed on the same face of the support.
Par ailleurs, chaque spire possède une extrémité libre dont on décrira ci-après la connexion.Furthermore, each turn has a free end which will be described below the connection.
L'autre extrémité de chaque spire de chaque enroulement se trouve, sur une face du support, en vis-à-vis de l'autre extrémité de la spire du même enroulement, sur l'autre face du support. Ces extrémités en vis-à-vis sont reliées par des trous conducteurs 7 (figure 2) pour assurer la continuité électrique de chaque enroulement d'une de ses extrémités libres à l'autre.The other end of each turn of each winding is located, on one side of the support, facing the other end of the turn of the same winding, on the other side of the support. These opposite ends are connected by conductive holes 7 (Figure 2) to ensure continuity of each winding from one of its free ends to the other.
On observera, et plus particulièrement à la figure 3, que les spires de chaque enroulement ont des formes telles qu'elles ménagent des renfoncements 8 superposés. Les trous conducteurs de l'autre enroulement passent dans ces renfoncements, ce qui permet d'assurer un recouvrement optimal des enroulements primaire et secondaire, et donc de bonnes performances du point de vue magnétique.It will be observed, and more particularly in FIG. 3, that the turns of each winding have shapes such that they spare 8 overlapping recesses. The conductive holes of the other winding pass through these indentations, which ensures recovery optimal primary and secondary windings, and therefore good magnetic performance.
Les extrémités libres de l'enroulement primaire sont reliées à deux conducteurs de liaison 9 et 10 (ici, doubles), perpendiculaires au plan du support et disposés côte à côte. De même, les extrémités libres de l'enroulement secondaire sont reliées à deux conducteurs de liaison similaires 11 et 12 (dont l'un, ici, est double). Les conducteurs de liaison du primaire et du secondaire sont réalisés de façon connue sous la forme de trous conducteurs, lors de l'assemblage des supports superposés.The free ends of the primary winding are connected to two connecting conductors 9 and 10 (here, double), perpendicular to the plane of the support and arranged side by side. Likewise, the free ends of the secondary winding are connected to two connecting conductors similar 11 and 12 (one of which, here, is double). The connecting conductors of the primary and secondary are carried out in a known manner in the form of conductive holes, when assembling the superimposed supports.
Les enroulements primaires d'une part, et les enroulements
secondaires d'autre part, des bobinages 1 et 2 sont ici connectés en
parallèle. La figure 4 montre toutefois un enroulement multiple, primaire ou
secondaire, où trois enroulements élémentaires sont connectés en série sur
quatre trous conducteurs 13a-13d. L'agencement de la figure 4 ne diffère
pas autrement de celui de la figure 1 et ne sera donc pas décrit plus en
détail.The primary windings on the one hand, and the windings
secondary on the other hand, coils 1 and 2 are here connected in
parallel. Figure 4 shows however a multiple winding, primary or
secondary, where three elementary windings are connected in series on
four
On aura remarqué que tous les tronçons conducteurs représentés jusqu'à présent aux dessins sont dédoublés. Il s'agit là d'une disposition connue liée au fait que le courant n'est pas uniformément réparti sur un conducteur donné en allant de l'axe de la spire vers l'extérieur. Chaque enroulement est donc divisé en deux conducteurs, chacun de ces conducteurs passant à l'intérieur sur une des faces du support et à l'extérieur sur l'autre face, ce qui permet d'optimiser les résistances en alternatif en forçant un même courant dans les deux branches.We will have noticed that all the conductive sections represented so far the drawings are split. This is a provision known related to the fact that the current is not uniformly distributed over a given conductor going from the axis of the coil to the outside. Each winding is therefore divided into two conductors, each of these conductors passing inside on one side of the support and outside on the other side, which optimizes the AC resistances by forcing the same current in both branches.
On se référera maintenant à la figure 5 (dans laquelle un seul des
enroulements est dédoublé comme décrit au paragraphe précédent).
L'enroulement primaire (par exemple) 20 et les connexions des
enroulements aux trous conducteurs 21a-21d sont identiques à ceux de la
figure 1. On ne décrira donc que l'enroulement secondaire 22.We will now refer to Figure 5 (in which only one of the
windings is split as described in the previous paragraph).
The primary winding (for example) 20 and the connections of the
windings at the
Celui-ci est formé de six tronçons hélicoïdaux s'étendant chacun sur
sensiblement 360°, formant ainsi six spires, trois sur une face du support et
trois sur l'autre face. La première spire 22a s'étend sur la face supérieure du
support depuis le trou conducteur 21c, à l'extérieur du bobinage, jusque vers
l'intérieur du bobinage. L'enroulement se poursuit alors par un trou
conducteur 23a, où il traverse le support. La deuxième spire 22b s'étend
donc sur la face inférieure du support, depuis le trou conducteur 23a jusqu'à
un autre trou conducteur 23b, à proximité du trou conducteur 21c. La
troisième spire 22c s'étend de nouveau à la face supérieure, à l'intérieur de
la spire 22a, du trou conducteur 23b jusqu'au trou conducteur 23c à
proximité du trou conducteur 23a. L'enroulement se poursuit ainsi en série
par la spire 22d, le trou conducteur 23d, la spire 22e, le trou conducteur 23e,
et la spire 22f, raccordée au trou conducteur 21d.This consists of six helical sections, each extending over
substantially 360 °, thus forming six turns, three on one side of the support and
three on the other side. The
On observe que les trois spires 22a, 22c et 22e de l'enroulement
secondaire 22 portées par la face supérieure du support, sont disposées
côte à côte dans une même zone réservée pour ainsi dire à l'enroulement
secondaire 22. Cette zone en forme de spirale, est imbriquée avec une autre
zone également en forme de spirale, qui est elle, réservée à la spire
dédoublée 20b de l'enroulement primaire 20. On retrouve également, sur
l'autre face du support, cette même disposition des spires en deux zones en
forme de spirales imbriquées, réservées l'une aux spires de l'enroulement
primaire et l'autre aux spires de l'enroulement secondaire. Cette disposition
permet, comme on vient de le voir, de réaliser des enroulements primaire et
secondaire avec des nombres de spires différents, ici un enroulement
primaire avec une spire dédoublée et un enroulement secondaire avec six
spires simples en n'employant qu'un support à deux faces. Elle permet
également une meilleure utilisation du cuivre par le fait que les distances
d'isolement à respecter au sein de chaque zone sont moindres du fait qu'il
s'agit uniquement d'un isolement interspire au sein d'un même enroulement.We observe that the three
Le bobinage qui vient d'être décrit relativement à la figure 5, peut évidemment être associé à d'autres en parallèle ou en série, comme aux figures 1 ou 4 respectivement.The winding which has just been described relative to FIG. 5, can obviously be associated with others in parallel or in series, as with Figures 1 or 4 respectively.
Claims (8)
- Coil for planar transformer comprising at least one primary winding and at least one secondary winding, of the type whose primary winding (3, 4; 20a, 20b) and secondary winding (5, 6; 22a-22f) comprise turns made in the form of conductive tracks formed on the faces of an insulating support and connected together by means of conductive ' holes (7,23a-23e) drilled in the insulating support, characterized in that the portions of the primary and secondary windings (20a resp. 22a, 22c, 22e; 20b resp. 22b, 22d, 22f) carried by one and the same face of the insulating support are grouped together on a per-winding basis, according to two separate nested zones, of spiral shape, one of the zones grouping together, side by side, turns or portions of turns (20a or 20b) of the primary winding and the other zone grouping together, side by side, turns or portions of turns (22a, 22c, 22e or 22b, 22d, 22f) of the secondary winding.
- Coil according to Claim 1, characterized in that each winding portion carried by a face of the insulating support forms a turn which extends over approximately 360°.
- Coil according to any one of Claims 1 and 2, characterized in that one at least of the windings (22a-22f) is formed on each face of the support of a plurality of winding portions joined successively from one face to the other of the support, in series by the said conductive holes (23a-23e).
- Coil according to Claim 1, characterized in that the turns of each winding have shapes such that they create superposed indentations (8) through which the conductive holes of the other winding pass.
- Multiple coil for planar transformer, characterized in that it comprises a plurality of coils (1, 2) according to any one of Claims 1 to 4, arranged one above another on a plurality of assembled supports and connected together electrically within one and the same primary or secondary winding by conducting holes drilled through the assembled supports.
- Coil according to Claim 5, characterized in that the said windings are linked in series.
- Coil according to Claim 5, characterized in that the said windings are linked in parallel.
- Coil according to any one of Claims 5 to 7, characterized in that it comprises at least several primary coils or several secondary coils.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9716347A FR2772973B1 (en) | 1997-12-23 | 1997-12-23 | WINDING FOR PLANAR TRANSFORMER |
FR9716347 | 1997-12-23 | ||
PCT/FR1998/002853 WO1999034379A1 (en) | 1997-12-23 | 1998-12-23 | Planar transformer winding |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1042768A1 EP1042768A1 (en) | 2000-10-11 |
EP1042768B1 true EP1042768B1 (en) | 2002-11-20 |
Family
ID=9514993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98963613A Expired - Lifetime EP1042768B1 (en) | 1997-12-23 | 1998-12-23 | Planar transformer winding |
Country Status (6)
Country | Link |
---|---|
US (1) | US6606022B1 (en) |
EP (1) | EP1042768B1 (en) |
CA (1) | CA2315894A1 (en) |
DE (1) | DE69809595T2 (en) |
FR (1) | FR2772973B1 (en) |
WO (1) | WO1999034379A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2784498B1 (en) | 1999-11-30 | 2001-10-12 | Ugimag Sa | PROCESS FOR PRODUCING FERRITE-TYPE MAGNETS |
DE10147474C1 (en) * | 2001-09-26 | 2003-04-24 | Siemens Ag | Macro multilayer coil for use as magnetic resonance tomography gradient coil, has elements connected by electrically conducting pieces to form coil, stabilized with insulating pieces |
FR2834143B1 (en) | 2001-12-20 | 2004-02-27 | Thales Sa | SYNCHRONOUS SWITCHING SERIES CHOPPER |
FR2839381B1 (en) | 2002-05-03 | 2004-07-02 | Thales Sa | UNIT MAGNETIC COUPLER AND CUT-OUT POWER SUPPLY |
US6894593B2 (en) * | 2003-02-12 | 2005-05-17 | Moog Inc. | Torque motor |
FR2860352B1 (en) * | 2003-09-29 | 2006-02-24 | Thales Sa | SYSTEM FOR BALANCING AN ENERGY STORAGE DEVICE |
FR2861918B1 (en) * | 2003-11-04 | 2006-02-03 | Thales Sa | CELLULAR INVERTER WITH REDUCED RATE OF SWITCHING DISTORTIONS |
FR2870403B1 (en) * | 2004-05-11 | 2007-09-14 | Thales Sa | AC / DC CONVERTER WITH LOW ANHARMONIC CURRENTS |
JP4371929B2 (en) * | 2004-07-08 | 2009-11-25 | スミダコーポレーション株式会社 | Magnetic element |
JP2006086460A (en) * | 2004-09-17 | 2006-03-30 | Alps Electric Co Ltd | Coupling coil |
US7167074B2 (en) * | 2005-01-12 | 2007-01-23 | Medtronic, Inc. | Integrated planar flyback transformer |
US7486167B2 (en) * | 2005-08-24 | 2009-02-03 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Cross-coupled inductor pair formed in an integrated circuit |
FR2900513B1 (en) * | 2006-04-26 | 2010-05-21 | Thales Sa | PERFECTED ISOLATED POWER TRANSFER DEVICE |
EP1916677A1 (en) * | 2006-10-25 | 2008-04-30 | Laird Technologies AB | Transformer and method of making a transformer |
FR2916570A1 (en) * | 2007-05-23 | 2008-11-28 | St Microelectronics Sa | INDUCTIVE PLANE STRUCTURE |
GB2480176A (en) * | 2009-01-28 | 2011-11-09 | Eaton Ind Co | High frequency power transformer and method of forming |
US8674799B2 (en) * | 2010-06-10 | 2014-03-18 | General Electric Company | Transformer assembly for a magnetic resonance imaging system |
US9384883B2 (en) | 2014-01-14 | 2016-07-05 | Qualcomm Incorporated | Nested through glass via transformer |
US9620278B2 (en) | 2014-02-19 | 2017-04-11 | General Electric Company | System and method for reducing partial discharge in high voltage planar transformers |
GB2529635A (en) * | 2014-08-26 | 2016-03-02 | Univ College Cork Nat Univ Ie | Centre-tapped transformer |
DE102018218782A1 (en) * | 2018-11-05 | 2020-05-07 | Zf Friedrichshafen Ag | PCB transformer |
CN111933410B (en) * | 2020-08-03 | 2021-08-31 | 上海交通大学 | Multi-module multi-winding high-frequency transformer assembly and system with ventilation cooling structure |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2230587B2 (en) * | 1972-06-22 | 1980-04-03 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Transformer or choke coil with plate shaped former - has coil winding on one former side and only plane conductive tracks on other one and has through contacting between sides |
DE3888185D1 (en) * | 1988-11-28 | 1994-04-07 | Siemens Ag | Line transformer. |
US5610433A (en) * | 1995-03-13 | 1997-03-11 | National Semiconductor Corporation | Multi-turn, multi-level IC inductor with crossovers |
EP0689214B1 (en) * | 1994-06-21 | 1999-09-22 | Sumitomo Special Metals Co., Ltd. | Process of producing a multi-layered printed-coil substrate |
EP0698896B1 (en) * | 1994-08-24 | 1998-05-13 | Yokogawa Electric Corporation | Printed coil |
JPH09102425A (en) * | 1995-10-04 | 1997-04-15 | Yokogawa Electric Corp | Laminated molded coil transformer |
FR2773013B1 (en) | 1997-12-23 | 2000-03-03 | Sextant Avionique | METHOD FOR CONTROLLING A CONTINUOUS-CONTINUOUS VOLTAGE CONVERTER WITH INDUCTIVE STORAGE |
-
1997
- 1997-12-23 FR FR9716347A patent/FR2772973B1/en not_active Expired - Fee Related
-
1998
- 1998-12-23 CA CA002315894A patent/CA2315894A1/en not_active Abandoned
- 1998-12-23 WO PCT/FR1998/002853 patent/WO1999034379A1/en active IP Right Grant
- 1998-12-23 DE DE69809595T patent/DE69809595T2/en not_active Expired - Lifetime
- 1998-12-23 US US09/581,223 patent/US6606022B1/en not_active Expired - Lifetime
- 1998-12-23 EP EP98963613A patent/EP1042768B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1999034379A1 (en) | 1999-07-08 |
EP1042768A1 (en) | 2000-10-11 |
DE69809595D1 (en) | 2003-01-02 |
CA2315894A1 (en) | 1999-07-08 |
FR2772973A1 (en) | 1999-06-25 |
DE69809595T2 (en) | 2003-09-18 |
FR2772973B1 (en) | 2000-06-30 |
US6606022B1 (en) | 2003-08-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1042768B1 (en) | Planar transformer winding | |
CA2186640C (en) | Stator core conductor section for a polyphase dynamo-electric machine | |
FR2844646A1 (en) | Car high voltage electrical rotating machine having part conductor inside stator notch/part outside and grouped so that end notch conductors phase follow along stator centre circumference. | |
CH660542A5 (en) | ELECTRIC MOTOR. | |
FR2808936A1 (en) | Stator for three-phase electric induction motor includes cylindrical structure with slots at cylinder end for three phase windings | |
FR2690289A1 (en) | Roebel bar for an improved half-coil configuration for a stator. | |
WO2014049218A2 (en) | Electrical connection assembly for brushless motor and system comprising such an assembly | |
EP3729607B1 (en) | Stator for electrical rotating machine | |
WO2007010038A1 (en) | Electrical contact between high or medium voltage apparatuses that is capable of swiveling | |
EP3682531A1 (en) | Connection system for an electrical machine | |
FR2539246A1 (en) | DECOUPLING CAPACITOR AND METHOD OF MANUFACTURING THE SAME | |
FR2862818A1 (en) | Stator for dynamoelectric machine e.g. electrical alternator, has stator winding including conductors that define air flow paths that extend via loop segments, between phases of segments, as well as between layers of segments | |
FR2755303A1 (en) | SHIELDED MAGNETIC FIELD ANTENNA IN A PRINTED CIRCUIT | |
FR2566969A1 (en) | ELECTRIC CONTACT ELEMENT OF A CONNECTOR AND METHOD FOR MANUFACTURING THE SAME | |
WO2021038168A1 (en) | Machine with toroidal winding | |
EP1953775A1 (en) | Multi-level inductance | |
FR2816459A1 (en) | STATOR OF A ROTARY ELECTRIC MACHINE | |
FR2667451A1 (en) | Contact element | |
WO1987005148A1 (en) | High voltage transformer | |
EP0794545B1 (en) | Vacuum switch or circuit breaker | |
FR3075503B1 (en) | STATOR FOR ROTATING ELECTRIC MACHINE | |
FR2830994A1 (en) | Winding for rotary electrical machine and stator using the winding, uses windings with tapered rectangular cross section for easier fitting into stator slots | |
CH363710A (en) | Rotating electric machine with discoidal elements | |
EP1351372A1 (en) | Inductive angle sensor of the synchro resolver type | |
FR2837993A1 (en) | Stator ring for motor or generator includes support cylinder with inwardly projecting teeth each carring coils |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20000623 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE CH DE FR GB IE LI NL SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THALES AVIONICS S.A. |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20020301 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE FR GB IE LI NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20021120 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20021120 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: FRENCH |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021231 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021231 |
|
REF | Corresponds to: |
Ref document number: 69809595 Country of ref document: DE Date of ref document: 20030102 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030220 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20030304 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D Ref document number: 1042768E Country of ref document: IE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20030821 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20070222 Year of fee payment: 9 |
|
BERE | Be: lapsed |
Owner name: S.A. *THALES AVIONICS Effective date: 20071231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20071231 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20091223 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20091217 Year of fee payment: 12 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20101223 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69809595 Country of ref document: DE Effective date: 20110701 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101223 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110701 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 18 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20151123 Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170102 |