EP0761009B1 - Procedes et dispositif pour le bobinage d'un noyau toro dal ferme pour des transformateurs et des bobines de self de puissance elevee - Google Patents

Procedes et dispositif pour le bobinage d'un noyau toro dal ferme pour des transformateurs et des bobines de self de puissance elevee Download PDF

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Publication number
EP0761009B1
EP0761009B1 EP94930197A EP94930197A EP0761009B1 EP 0761009 B1 EP0761009 B1 EP 0761009B1 EP 94930197 A EP94930197 A EP 94930197A EP 94930197 A EP94930197 A EP 94930197A EP 0761009 B1 EP0761009 B1 EP 0761009B1
Authority
EP
European Patent Office
Prior art keywords
winding
ring core
guide
ring
windings
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
EP94930197A
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German (de)
English (en)
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EP0761009A1 (fr
Inventor
Volker Hanser
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.)
Hpt Hanser Transformatoren GmbH
Original Assignee
HANSER VOLKER HPT HANSER TRANSFORMATOREN GmbH
HANSER Volker
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Application filed by HANSER VOLKER HPT HANSER TRANSFORMATOREN GmbH, HANSER Volker filed Critical HANSER VOLKER HPT HANSER TRANSFORMATOREN GmbH
Publication of EP0761009A1 publication Critical patent/EP0761009A1/fr
Application granted granted Critical
Publication of EP0761009B1 publication Critical patent/EP0761009B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores

Definitions

  • the invention relates to a method and an apparatus for winding a closed toroid for transformers and chokes with high power.
  • toroidal cores For transformers with a higher output up to 120 KVA, for example, only in Special cases toroidal cores and in particular mostly toroidal cores with separation points used, which are wrapped in elaborate manual work. The necessary here Conductor cross sections require so much effort when winding that Transformers of even greater performance cannot be realized with toroidal cores. Of the In terms of electrotechnics, however, toroidal cores would be at high power, for example in MVA area is particularly desirable for power distribution networks because the much lower losses and the other known benefits of using Toroidal transformers would have a particularly advantageous effect here and thus there would be great economic benefits.
  • the windings usually consist of Tapes that are very wide for the necessary conductor cross sections so that the thickness of the Conductor can be reduced so far that the band-shaped conductor is still around the core can be wrapped and bent. Due to the annular geometry of the Toroidal cores in toroidal core transformers can be broad, for example one meter wide, do not use tapes anymore, because with the given Radius of curvature the winding have a correspondingly large distance from the core would or no longer to the core because of the limited, inner Passage cross section, fits.
  • the object of the present invention is to provide a method and a winding device for to create closed toroidal cores, which also enables transformers of very high performance for example for distribution networks.
  • the effort for this should be comparatively small.
  • a first winding segment is applied to a toroidal radial section, with several layers of a conductor and an intermediate insulation by several revolving winding rollers on the Ringkem radial section be applied.
  • this can be used Process the respective winding either be wound in one operation or but it is also possible to cross the conductor cross-section to several windings distribute and apply these windings one after the other.
  • the winding or partial winding to be applied in one winding operation is first applied to the winding roll and then at the same time Unwinding the electrical conductor around the ring and passed through the ring opening.
  • the size of the winding roll with the winding material on it is determined according to the internal cross section of the toroid used.
  • Toroidal transformers are also made in a modular manner from several smaller basic units become, which results in particular for the transport and assembly on site.
  • a further development of the method according to the invention provides that windings around the toroidal core are wound so that an air gap, further ring core is preferably arranged concentrically in the first ring core and that both ring cores are then wound with common windings. In this way, a transformer can be wound simultaneously with an integrated choke.
  • the device according to the invention for carrying out the method provides that it one guide encompassing the ring leg to be wound and several along this guide through the toroid transportable, unwindable winding roll with Has winding material, that is, with a conductor or with intermediate insulation, and that the guide has a separating point for gripping around the ring leg and thus in the form of pliers can be opened and closed.
  • the Guide of the winding machine For winding a closed toroid, the Guide of the winding machine first opened like pliers and then grips after Close a ring core section from one side, the winding rollers then run along this guide, while at the same time one after the other on the winding roll wound electrical conductors and the intermediate insulation from the respective winding roll unwound and wound on the toroid.
  • a winding device 1 shown in Fig. 1 is used for winding closed Toroidal cores 2 for transformers or chokes.
  • this Winding device toroidal cores 2 are wound by high-power transformers, whose output is above 120 KVA, for example.
  • the windings to be applied have considerable conductor cross sections, which are only are difficult to handle when wrapping.
  • the winding device 1 essentially has a guide 3 revolving winding rolls 4.
  • the guide 3 encompasses, as can be clearly seen in FIG. 1, the Toroidal core leg 5, which in the exemplary embodiment consists of wound electrical sheet 6 consists.
  • the guide 3 is formed like pliers and has a separation point 7 and another separation point, not visible here, or a swivel joint opposite the Separation point 7. The guide 3 can thus be opened and around Toroidal legs 5 are placed around.
  • the winding rollers 4,4a run in the direction of the arrow Pf 1 ⁇ m.
  • the in the direction of rotation Front winding roller 4 carries the electrical intended for the winding to be applied Conductor 8 while on a subsequent winding roll 4a insulation material 26 for the Layer insulation is wound up.
  • the winding rollers 4, 4a circulate along the Guide 3, the material located on the winding rolls is unwound and in layers on the toroidal leg 5 in the segment provided wound up.
  • the entire length of one winding required electrical conductor usually does not fit on a winding roll 4 or the winding roll 4 thus wound then not through the inner opening 9 of the toroidal core 2 fits, as can be seen in FIG. 3, several winding segments 10 am Circumference of the toroidal core 2 applied distributed. For each of these partial windings, one sufficient amount of winding material to be applied to the winding roll 4.
  • the Sub-windings or winding segments 10 are then interconnected, so that the undervoltage winding and possibly also the high voltage winding several partial windings is formed.
  • the division of the high and low voltage windings with respect to the arrangement of the individual winding segments 10 can be provided practically as desired. For example, there is the possibility of high and low voltage windings alternately in segments next to each other or in groups assign. As a result, the degree of coupling can be varied within wide limits.
  • the annular guide 3 here has two concentrically spaced-apart guide rails 11, 11a, between which a revolving, connected to a drive means of transport 12 is guided (Fig. 2).
  • Transport means 12 can serve a circulating chain or a belt or the like at which coupling points 13 for winding rolls are located.
  • the winding rolls have winding bodies 14 which are rotatable an axis 15 are mounted.
  • the transport means 12 Ax At the end facing the transport means 12 Axis designed as a coupling part and can thus at the coupling points 13 of the Transport means 12 preferably engage non-rotatably.
  • a fastening screw 16 is provided to secure the plug connection.
  • the winding body 14 is rotatably mounted on the axis 15 and it is preferably one adjustable braking device 17 is provided with which the winding body during unwinding of the electrical conductor can be braked. With the braking device 17 is thus the winding tension and thus the strength of the winding to be applied can be controlled.
  • the fastening end of the axis 15 engaging in the transport means 12 is on this a roller bearing 18 engaging between the guide rails 11, 11a is also provided.
  • the toroidal core 2 is a holding device 20 for the toroidal core 2 to be wound indicated, by means of which the toroidal core 2 is held and possibly also rotated can.
  • the toroidal core 2 in Rotated circumferential direction and then another winding can be applied. It exists but also the possibility that the relative rotary movement between the toroid and Winding device 1 is carried out by the winding device itself by this in The circumferential direction of the toroidal core 2 can be positioned.
  • the end of the band-shaped electrical conductor 8 is one in the band plane lying, oblique crease line 21 folded, so that the end is then angled to the rest Conductor 8, preferably at right angles.
  • This angled, folded end can then, as shown in Fig. 10, be halved in width by folding over. This can are repeated until a compact connection end 22 is formed, the is mechanically stable and is more adjacent with the connection ends also formed in this way Windings can be connected using pressing, welding or soldering technology. This therefore considerably simplifies the interconnection of the individual partial windings.
  • the transformer produced by the method according to the invention can also be used be equipped with an integrated throttle.
  • an integrated throttle for this purpose, as described above, first a Part of the windings or the winding segments 10 applied to the toroidal core 2. Then another toroidal core 2a or 2b (compare FIGS. 4 and 5), the are provided with air gaps 23, assigned to the partially wound toroidal core 2 and it both ring cores are then wrapped together with further windings
  • Fig. 6 shows a step ring core 2c shown in section, through the unwanted Gaps between the winding core and winding can be avoided.
  • the course of the provided decoupling layers 19 can also be clearly seen here.
  • Cooling channels 25 are supplied with a cooling medium.
  • Fig. 7 shows an embodiment in which the intermediate layer 24 made of elastic Material and thus forms the decoupling layer 19 at the same time.
  • Fig. 8 shows one another embodiment where the cooling channels 25 in one of the Decoupling layer 19 separate intermediate layer 24 are housed.
  • the decoupling layer on the radial and axial sides of the toroidal core can be designed differently in order to influence the magnetic properties of the core due to different pressurization to reach.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Insulating Of Coils (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Transformers For Measuring Instruments (AREA)

Claims (10)

  1. Procédé pour le bobinage d'un noyau toroïdal fermé pour des transformateurs et des bobines de self à grande puissance, avec un ou plusieurs conducteurs électriques, selon lequel le conducteur (8) prévu pour un enroulement ou un enroulement partiel est apposé sur une bobine (4) passant, conjointement avec le matériau bobiné, à travers l'ouverture (9) du noyau toroïdal, et cette bobine est ensuite dirigée autour du noyau toroïdal (2, 2a, 2b, 2c) et à travers l'ouverture intérieure (9), l'enroulement étant alors rebobiné de la bobine (4) sur le noyau toroïdal, caractérisé en ce qu'un premier segment d'enroulement (10) est apposé sur un tronçon radial du noyau toroïdal, plusieurs couches d'un conducteur (8) et d'une isolation intermédiaire (26) étant, lors de la réalisation du segment d'enroulement (10), apposées par plusieurs bobines circulantes (4, 4a) sur le tronçon radial du noyau toroïdal, et en ce qu'ensuite, afin d'apposer un autre segment d'enroulement sur un autre tronçon radial du noyau toroïdal, le noyau toroïdal et le dispositif de bobinage sont tournés l'un par rapport à l'autre, à la suite de quoi l'on entreprend le bobinage du noyau toroïdal avec un autre enroulement.
  2. Procédé selon la revendication 1, caractérisé en ce qu'en présence notamment de plusieurs enroulements ou enroulements partiels constitués de conducteurs plats enroulés, les extrémités de ces enroulements sont pliées selon une ligne d'inflexion oblique (21) située dans le plan du conducteur plat, et l'extrémité pliée est repliée ou roulée une ou plusieurs fois en une extrémité de raccordement (22).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que des enroulements sont bobinés autour du noyau toroïdal (2), en ce qu'ensuite un autre noyau toroïdal (2a, 2b) pourvu d'entrefers (23) est disposé de préférence concentriquement autour du premier noyau toroïdal (2), et en ce que les deux noyaux toroïdaux (2, 2a, 2b) sont ensuite bobinés avec des enroulements communs.
  4. Dispositif pour le bobinage de noyaux toroïdaux fermés avec des conducteurs électriques comme matériau bobiné pour la fabrication de transformateurs et de bobines de self à grande puissance, notamment pour la mise en oeuvre du procédé selon une des revendications 1 à 3, comprenant un guide (3) s'engageant autour d'une branche (5) de noyau toroïdal, et une bobine (4), chargée de matériau bobiné, qui peut être déplacée à travers l'espace intérieur du noyau, caractérisé en ce que le guide, afin de s'engager autour de la branche (5) de noyau toroïdal, présente un point de séparation (7) et peut être ouvert et fermé à la manière d'une pince, et en ce qu'il présente plusieurs bobines (4, 4a), qui sont respectivement chargées d'un conducteur (8) ou d'une isolation intermédiaire (26), les bobines (4, 4a) pouvant, à l'aide de moyens de transport, lorsque le guide (3) est fermé, être déplacées successivement à travers le noyau toroïdal le long du guide (3).
  5. Dispositif selon la revendication 4, caractérisé en ce que le guide (3) est réalisé de forme annulaire et présente des points d'accouplement (13) pour recevoir, de préférence, plusieurs bobines (4, 4a).
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que le guide (3) présente des rails de guidage (11, 11a) fixes en position de service, et en ce que les bobines (4, 4a) peuvent être accouplées à des moyens de transport (12) qui sont guidés le long des rails.
  7. Dispositif selon la revendication 6, caractérisé en ce que les rails de guidage (11, 11a) sont disposés concentriquement et parallèlement entre eux, et en ce qu'un moyen de transport circulant (12) est prévu entre eux, de préférence une chaíne, une courroie ou un élément de traction analogue, sur lequel se trouve des points d'accouplement (13) pour l'installation de bobines (4, 4a).
  8. Dispositif selon une des revendications 4 à 7, caractérisé en ce que les bobines présentent un corps de bobine (14) monté à rotation sur un axe (15), en ce que l'axe (15) est réalisé à une extrémité sous forme d'élément d'accouplement pour l'assemblage avec le moyen de transport (12) ou analogue, et au moins un palier, notamment un palier à roulement (18), est disposé sur cet élément d'accouplement et coopère avec le guide (3).
  9. Dispositif selon une des revendications 4 à 8, caractérisé en ce que des dispositifs de freinage (17), de préférence réglables, sont prévus sur les bobines (4, 4a) pour le réglage du couple de rotation.
  10. Dispositif selon une des revendications 4 à 9, caractérisé en ce qu'un dispositif de positionnement est prévu pour le noyau toroïdal (2) à bobiner et/ou pour le dispositif de bobinage (1), afin d'apposer des enroulements en différents endroits de la périphérie du noyau toroïdal.
EP94930197A 1993-11-03 1994-10-20 Procedes et dispositif pour le bobinage d'un noyau toro dal ferme pour des transformateurs et des bobines de self de puissance elevee Expired - Lifetime EP0761009B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4337436 1993-11-03
DE4337436 1993-11-03
PCT/EP1994/003447 WO1995012887A1 (fr) 1993-11-03 1994-10-20 Procedes et dispositif pour le bobinage d'un noyau toroïdal ferme pour des transformateurs et des bobines de self de puissance elevee

Publications (2)

Publication Number Publication Date
EP0761009A1 EP0761009A1 (fr) 1997-03-12
EP0761009B1 true EP0761009B1 (fr) 1998-05-13

Family

ID=6501650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94930197A Expired - Lifetime EP0761009B1 (fr) 1993-11-03 1994-10-20 Procedes et dispositif pour le bobinage d'un noyau toro dal ferme pour des transformateurs et des bobines de self de puissance elevee

Country Status (6)

Country Link
EP (1) EP0761009B1 (fr)
AT (1) ATE166180T1 (fr)
AU (1) AU7938794A (fr)
DE (1) DE59405966D1 (fr)
ES (1) ES2116622T3 (fr)
WO (1) WO1995012887A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2531339B1 (fr) 2010-02-04 2016-08-24 Protension IP Assets B.V. Dispositif et procédé de production d'un produit composite renforcé par des fibres

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006040074A1 (fr) 2004-10-07 2006-04-20 Volker Werner Hanser Transformateur a noyau toroidal
DE102005062485A1 (de) * 2005-01-10 2006-09-07 Beotechnic Gmbh Vorrichtung und Verfahren zum Bewickeln eines geschlossenen Ringkerns
DE102007026042A1 (de) 2007-06-04 2008-12-11 Abb Ag Verfahren und Vorrichtung zum Herstellen eines Ringkerntransformators
CN104900396B (zh) * 2015-03-09 2017-01-18 廊坊英博电气有限公司 一种用于大型磁环电感自动绕线机的旋转绕线支架组
CN104900395B (zh) * 2015-03-09 2017-01-25 廊坊英博电气有限公司 一种大型磁环电感自动绕线机及绕线方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228719B (de) * 1958-04-17 1966-11-17 Karl Heinz Ramm Vorrichtung zum Bewickeln von ringfoermigen Koerpern, z. B. Ringkernen, mit Draht od. dgl.
US3669365A (en) * 1969-01-27 1972-06-13 Joseph A Loturco Toroidal coil winding machine
JPS5750414A (en) * 1980-09-12 1982-03-24 Toshiba Corp Manufacturing device for current transformer
JPH0241852Y2 (fr) * 1985-03-20 1990-11-08
EP0205871B1 (fr) * 1985-06-07 1989-05-03 Siemens Aktiengesellschaft Dispositif de bobinage pour bobines à noyau annulaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2531339B1 (fr) 2010-02-04 2016-08-24 Protension IP Assets B.V. Dispositif et procédé de production d'un produit composite renforcé par des fibres

Also Published As

Publication number Publication date
ES2116622T3 (es) 1998-07-16
WO1995012887A1 (fr) 1995-05-11
ATE166180T1 (de) 1998-05-15
DE59405966D1 (de) 1998-06-18
AU7938794A (en) 1995-05-23
EP0761009A1 (fr) 1997-03-12

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