EP0761009B1 - Verfahren und vorrichtung zum bewickeln eines geschlossenen ringkerns für transformatoren und drosseln hoher leistungen - Google Patents
Verfahren und vorrichtung zum bewickeln eines geschlossenen ringkerns für transformatoren und drosseln hoher leistungen Download PDFInfo
- 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
Links
- 238000004804 winding Methods 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims description 18
- 239000004020 conductor Substances 0.000 claims abstract description 27
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Transformers For Measuring Instruments (AREA)
- Insulating Of Coils (AREA)
Description
- Fig. 1
- eine Seitenansicht einer Wickelmaschine beim Bewickeln eines Ringkernes,
- Fig. 2
- eine Detaildarstellung einer Wickelrolle,
- Fig. 3
- eine Aufsicht eines teilweise bewickelten Ringkernes,
- Fig. 4 und 5
- Aufsichten von Ringkernen mit Luftspalt,
- Fig. 6
- eine Querschnitt eines Ringkernes mit Querschnittabstufungen,
- Fig. 7 und 8
- unterschiedliche Ausführungsformen von auf dem Ringkern befindlichen Entkoppelschichten
- Fig. 9 bis 11
- Wickelleiterenden in unterschiedlichen Formungsphasen.
Claims (10)
- Verfahren zum Bewickeln eines geschlossenen Ringkernes für Transformatoren und Drosseln hoher Leistung, mit einer oder mehreren elektrischen Leitern, bei welchem Verfahren der für eine Wicklung oder eine Teilwicklung vorgesehene Leiter (8) auf eine zusammen mit dem Wickelgut durch die Ringkernöffnung (9) hindurchpassende Wickelrolle (4) aufgebracht und diese Wickelrolle anschliessend um den Ringkern (2, 2a, 2b, 2c) und durch die Innenöffnung (9) hindurchgeführt und dabei die Wicklung von der Wickelrolle (4) auf den Ringkern umgewickelt wird, dadurch gekennzeichnet, dass auf einen Ringkern-Radialabschnitt ein erstes Wicklungssegment (10) aufgebracht wird, wobei bei der Erstellung des Wicklungssegments (10) mehrere Lagen eines Leiters (8) und einer Zwischenisolierung (26) durch mehrere umlaufende Wickelrollen (4, 4a) auf den Ringkern-Radialabschnitt aufgebracht werden, und dass anschliessend zum Aufbringen eines weiteren Wicklungssegments an einem anderen Ringkern-Radialabschnitt der Ringkern und die Wickelvorrichtung relativ zueinander verdreht werden und dann das Umwickeln des Ringkerns mit einer weiteren Wicklung vorgenommen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass insbesondere bei mehreren aus elektrischen Bandleitern gewickelten Wicklungen oder Teilwicklungen deren Enden um eine in der Bandebene liegende, schräge Knicklinie (21) gefaltet und das gefaltete Ende ein- oder mehrfach zu einem Anschlussende (22) zusammengefaltet oder gerollt wird.
- Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass Wicklungen um den Ringkern (2) gewickelt werden, dass anschliessend ein mit Luftspalten (23) versehener, weiterer Ringkern (2a, 2b) bei dem ersten Ringkern (2) vorzugsweise konzentrisch angeordnet wird und dass anschliessend beide Ringkerne (2, 2a, 2b) mit gemeinsamen Wicklungen bewickelt werden.
- Vorrichtung zum Bewickeln von geschlossenen Ringkernen mit elektrischen Leitern als Wickelgut zur Herstellung von Transformatoren und Drosseln hoher Leistung, insbesondere zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 3, mit einer einen Ringkern-Schenkel (5) umgreifenden Führung (3) und einer durch den Ringinnenraum hindurch bewegbaren, mit Wickelgut beladenen Wickelrolle (4), dadurch gekennzeichnet, dass die Führung zum Umgreifen des Ringkern-Schenkels (5) eine Trennstelle (7) aufweist und zangenförmig öffen- und schliessbar ist, und dass sie mehrere Wickelrollen (4,4a) aufweist, die mit einem Leiter (8) bzw. mit einer Zwischenisolierung (26) beladen sind, wobei die Wickelrollen (4,4a) bei geschlossener Führung (3) mit Hilfe von Transportmitteln nacheinander entlang der Führung (3) durch den Ringkern hindurch bewegbar sind.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Führung (3) ringförmig ausgebildet ist und Kupplungsstellen (13) zur Aufnahme vorzugsweise mehrerer Wickelrollen (4, 4a) aufweist.
- Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Führung (3) in Betriebsstellung feststehende Führungsschienen (11, 11a) aufweist und dass die Wickelrollen (4, 4a) an Transportmittel (12), die entlang der Führungsschienen geführt sind, ankuppelbar sind.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Führungsschienen (11, 11a) konzentrisch und parallel nebeneinander angeordnet sind und dass dazwischen ein umlaufendes Transportmittel (12), vorzugsweise eine Kette, ein Riemen oder ein derartiges Zugelement vorgesehen ist, an dem sich Kupplungsstellen (13) zum Anbringen von Wickelrollen (4, 4a) befinden.
- Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Wickelrollen einen auf einer Achse (15) drehbar gelagerten Wickelkörper (14) aufweisen, dass die Achse (15) an einem Ende als Kupplungsteil zum Verbinden mit dem Transportmittel (12) oder dergleichen ausgebildet ist und bei diesem Kupplungsteil wenigstens ein Lager, insbesondere eine Wälzlager (18) angeordnet ist, das mit der Führung (3) zusammenwirkt.
- Vorrichtung nach einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, dass bei den Wickelrollen (4, 4a) vorzugsweise einstellbare Bremsvorrichtungen (17) zur Drehmomenteinstellung vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 4 bis 9, dadurch gekennzeichnet, dass eine Positioniervorrichtung für den zu bewickelnden Ringkern (2) und/oder die Wickelvorrichtung (1) vorgesehen ist, zum Aufbringen von Wicklungen an unterschiedlichen Umfangsstellen des Ringkerns.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4337436 | 1993-11-03 | ||
| DE4337436 | 1993-11-03 | ||
| PCT/EP1994/003447 WO1995012887A1 (de) | 1993-11-03 | 1994-10-20 | Verfahren und vorrichtung zum bewickeln eines geschlossenen ringkerns für transformatoren und drosseln hoher leistungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0761009A1 EP0761009A1 (de) | 1997-03-12 |
| EP0761009B1 true EP0761009B1 (de) | 1998-05-13 |
Family
ID=6501650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94930197A Expired - Lifetime EP0761009B1 (de) | 1993-11-03 | 1994-10-20 | Verfahren und vorrichtung zum bewickeln eines geschlossenen ringkerns für transformatoren und drosseln hoher leistungen |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0761009B1 (de) |
| AT (1) | ATE166180T1 (de) |
| AU (1) | AU7938794A (de) |
| DE (1) | DE59405966D1 (de) |
| ES (1) | ES2116622T3 (de) |
| WO (1) | WO1995012887A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2531339B1 (de) | 2010-02-04 | 2016-08-24 | Protension IP Assets B.V. | Vorrichtung und verfahren zur herstellung eines faserverbundprodukts |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA012993B1 (ru) | 2004-10-07 | 2010-02-26 | Фолькер Вернер Ханзер | Способ и устройство для изготовления трансформатора с тороидальными сердечниками |
| 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 |
| 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 |
| 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 |
Family Cites Families (5)
| 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 (de) * | 1985-03-20 | 1990-11-08 | ||
| ATE42861T1 (de) * | 1985-06-07 | 1989-05-15 | Siemens Ag | Ringkernspulen-wickelvorrichtung. |
-
1994
- 1994-10-20 AU AU79387/94A patent/AU7938794A/en not_active Abandoned
- 1994-10-20 EP EP94930197A patent/EP0761009B1/de not_active Expired - Lifetime
- 1994-10-20 ES ES94930197T patent/ES2116622T3/es not_active Expired - Lifetime
- 1994-10-20 AT AT94930197T patent/ATE166180T1/de not_active IP Right Cessation
- 1994-10-20 WO PCT/EP1994/003447 patent/WO1995012887A1/de not_active Ceased
- 1994-10-20 DE DE59405966T patent/DE59405966D1/de not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2531339B1 (de) | 2010-02-04 | 2016-08-24 | Protension IP Assets B.V. | Vorrichtung und verfahren zur herstellung eines faserverbundprodukts |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0761009A1 (de) | 1997-03-12 |
| ES2116622T3 (es) | 1998-07-16 |
| WO1995012887A1 (de) | 1995-05-11 |
| AU7938794A (en) | 1995-05-23 |
| ATE166180T1 (de) | 1998-05-15 |
| DE59405966D1 (de) | 1998-06-18 |
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