EP1085537A2 - Planartransformator und Verfahren zur Herstellung seiner Wicklung sowie eine kompakte elektrische Vorrichtung mit einem solchen Planartransformator - Google Patents
Planartransformator und Verfahren zur Herstellung seiner Wicklung sowie eine kompakte elektrische Vorrichtung mit einem solchen Planartransformator Download PDFInfo
- Publication number
- EP1085537A2 EP1085537A2 EP00119213A EP00119213A EP1085537A2 EP 1085537 A2 EP1085537 A2 EP 1085537A2 EP 00119213 A EP00119213 A EP 00119213A EP 00119213 A EP00119213 A EP 00119213A EP 1085537 A2 EP1085537 A2 EP 1085537A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical
- folded
- transformer
- compact
- conductor
- 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.)
- Withdrawn
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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
- H01F27/2847—Sheets; Strips
-
- 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
-
- 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
- H01F41/061—Winding flat conductive wires or sheets
- H01F41/063—Winding flat conductive wires or sheets with insulation
-
- 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
- H01F27/2847—Sheets; Strips
- H01F2027/2861—Coil formed by folding a blank
Definitions
- the invention relates to a planar transformer and a method for Manufacturing the winding of the planar transformer and a compact electrical device with such a planar transformer according to the respective preambles of claims 1, 6 and 10.
- the invention has for its object a planar transformer indicate which one with any number of turns simple and is inexpensive to manufacture.
- the object is achieved in that the primary and the secondary winding each from a folded, a non-circular Cross-section, electrical conductor exists.
- the advantage of the invention is that the winding is not as before by stacking windings with subsequent connection of the individual parts, but by folding a finite one electrical conductor. The process of connecting individual sheets to form a closed winding.
- the winding is either manufactured from Metal strips (rolled goods) or from specially shaped sheet metal stampings.
- the use of metal straps creates a winding which spread apart due to the elastic properties of the metal, which prevents electrical contacting of the individual windings becomes.
- Shaped sheet metal stampings make it particularly easy Realize tapping.
- At least one is parallel to the electrical conductor Insulating layer available, which in one operation with the electrical Ladder is folded.
- Such an insulating layer has the advantage that in addition to the electrical insulation immediately a mechanically stable bond between several winding layers is created.
- the insulating layer is self-adhesive to fix the electrical conductor educated.
- transformer arrangements in which special emphasis is placed on a extremely good coupling, there are at least two metal strips arranged together on an insulating layer and are simultaneously folded. Through the intimate nesting of at least two at the same time applied turns improves the coupling among the Turns again.
- the two windings can be on both sides of the Insulation layer, but alternatively also on one of the surface of the insulation layer spaced apart.
- the loose end of the metal strip is formed electrical conductor by a first predetermined distance predetermined first angle folded in one direction and then after a second predetermined distance by a second predetermined Angle in the opposite direction to the given one Folded towards. This process is repeated until one desired number of turns is reached.
- the electrical conductor is at a predetermined angle alternately in a given direction or in the given direction Folded in the opposite direction.
- a compact electrical Device in particular a switching power supply proposed, with a Transformer for matching different electrical voltages between an electrical circuit and one with a reference voltage connectable contacting device, at least one primary winding of the transformer with the contacting device and at least a secondary winding of the transformer with the electrical circuit are connected via first electrical connections, the primary and the secondary winding has at least part of the transformer core encloses.
- the primary and the secondary winding each made from a folded electrical conductor, which one has non-circular cross-section.
- the primary and the secondary winding and / or are advantageously first electrical connections and / or the contacting device in a support body made of insulating material is arranged, and the electrical circuit is arranged on a carrier element via a second electrical connection with at least a first one electrical connection of the carrier body connected.
- the advantage of the invention is that the individual components Plugs, power supply / distribution and the transformer windings or the transformer core together in a compact unit are arranged.
- Such an electronic block contains all the necessary ones electrical traces, either by temporary spacers or real insulation layers or layers kept isolated from each other and then overmolded with plastic.
- the work steps will hereby improve the electrical Insulation properties achieved.
- this is Compact electronics shockproof and vibration-insensitive, which in particular is advantageous for use in motor vehicles.
- At least one contact pin is on the plane Carrier element for connecting the electrical circuit with at least a first electrical connection of the carrier body, which is electrically connected to the at least one conductor track Opening protrudes.
- This arrangement of the rigid pin makes the electrical connection between the electrical circuit and the electrically conductive parts of the carrier body simply by plugging the carrier body onto the Contact pin realized, which at the same time creates a mechanical lock is achieved.
- This second electrical connection is particularly easy to establish, when the contact pin for making the electrical connection in the opening of the carrier body is pressed. So not only the electrical, but also a permanent mechanical connection produce which is insensitive to vibrations.
- the first electrical connections are particularly easy produce if they are formed as sheet metal parts. With the help of such stacked stamped and bent sheet metal, which the electrical Form conductor tracks in the carrier body, the carrier body can be easily manufacture as an injection molded part.
- Angled ends of the sheet metal parts are advantageously made of Carrier body for forming the electrical connections of the plug device led out.
- the body of the contacting device is through formed the support body.
- the compact electrical block can be molded in the same plastic design such that the carrier body is part of a housing, which covers the carrier element carrying the electrical circuit.
- the carrier body is a middle part of the housing with a gasket molded on one side to rest on the support element formed, the housing middle part with a flat cover is closed, which also has a molded seal, which rests on the middle part of the housing.
- the carrier element is made of metal, preferably made of aluminum, and is also used for cooling the power components of the electronic circuit.
- the carrier element is a substrate which is made of copper sheet welded onto heat-conducting ceramic (Direct Copper Bonding) exists. Due to the very good heat conduction of this material are high performance of the power transistors enables.
- the Transformer core is constructed in two parts, with a first E-like Core element rests on the carrier element, the three of which are perpendicular to the Carrier element pioneering webs through corresponding transformer openings grab the support body and a second flat or E-like trained core element covers the webs and magnetically connects with each other, with the primary and secondary winding rotating are arranged between the webs.
- the transformer By resting the first core element on the as a heat sink trained carrier element is the transformer with high performance operable and can have a high efficiency.
- the transformer works reliably with those in modern motor vehicles occurring high currents and can be easily cooled.
- a switching power supply is shown as it is used to adapt different voltage levels in numerous electrical devices Used.
- a carrier body 1 made of plastic includes several superimposed conductor tracks 2, which as Stamped bending sheets are formed.
- the conductor tracks 2 are like this arranged within the plastic carrier body 1 that the plastic between the conductor tracks 2 has an insulating effect.
- the Carrier body 1 windings 3a, 3b which are a primary and a secondary winding form a planar transformer.
- the primary 3a and the secondary winding 3b is formed by at least one turn.
- Some conductor tracks 2 are bent out of the plastic carrier body 1 led out, the ends of which form connector pins 4 and the plastic carrier body 1 at the same time by one in an injection molding process made molding forms the plug body 5.
- the plastic body 1 has metallized and with the Conductor tracks 2 connected contact openings 6 and 7, in which Contact pins 12 engage on an aluminum support element 8 are arranged.
- a ceramic circuit board 9 is on the carrier element 8 attached, which has copper tracks 10.
- the ceramic circuit board 9 is glued to the aluminum body 8, for example.
- the copper tracks 10 establish an electrical connection between the also the printed circuit board 9 arranged power components 11 and Contact pin 12. Furthermore, that is on the aluminum support member 8 Lower part 13 of a planar transformer core arranged.
- the Pins 12 of the aluminum plate 8 in the contact openings 6 and 7 respectively of the carrier body 1 introduced. This takes place in a press-in process, that is, the diameter of the contact openings 6 and 7 is less than the thickness of the contact pins 12, so that after pressing in the contact pins a both secure mechanical and electrical connection of the contact pin 12 with the windings of the primary and secondary coils 3a, 3b of the transformer and with the conductor tracks 2.
- the windings 3a, 3b are in the Lower part 13 of the transformer core open at the top.
- the bottom part 13 has three webs pointing in the direction of the plastic body 1 13a, 13b, 13, c, with the winding 3a, 3b in the spaces 26, 27 of these webs 13a, 13b, 13c is arranged ( Figure 3).
- Figure 3 After touchdown of the plastic carrier body 1 on the circuit board 8 is the upper part 14 of the transformer core placed on the plastic body 1. Consequently after connecting the reference voltage to the plug device 4, 5 voltage transformed by the so-called planar transformer transferred to the power components 11 via the contact pins 12.
- Control and regulating electronics 25 as a component on the substrate 9 be arranged.
- Another is for use in the motor vehicle Plug device 28 is provided, via which this electronics via the CAN bus communicates with other control units.
- FIG. 2 shows an embodiment of the compact electronics that is particularly favorable in terms of production technology.
- a seal 20, which rests on the aluminum plate 8, is arranged all around on the collar 19.
- the edge of the cover 22 also carries a seal 23 on which the plastic carrier body 1 rests. Possible sealing problems when connecting to the base plate are avoided by the molded sealing lip.
- a device for producing an electrical conductor 15 folded winding package 18 is shown in Figure 4.
- One on a gimbaled roller 16 arranged copper tape 15 guided over a folding and separating device 17.
- the folding and separating device 17 folds the copper tape by 180 ° in such a way that it Degree from the actual direction of extension of the copper strip 15 is deflected so that after four folds a rectangle-like Winding arises.
- the folded end of the electrical conductor 15 lies supposedly on the surface of the metal strip 15.
- a roller conveyor counter is used to determine the length of the sections to be moved intended.
- Figure 6 shows a copper tape roll 16 and a roll, which one Insulator or a double-sided tape leads.
- Roll 24 with the double-sided tape 28 is arranged behind the roller 16 with the copper tape. If the double-sided adhesive tape 29 passes the copper roll, the electrical one Conductor 15 automatically on the self-adhesive surface of the double-sided tape 29 attached and the resulting band 30 is also in folded the way already described.
- FIG. 7 Preferred embodiments of the folding for the device according to Figures 5 and 6 are shown in Figure 7. It must always be ensured that when folding insulator on insulator and electrical conductor on electrical conductor to prevent insulation in the wrong place.
- the conductor 15 is simply folded in the simplest manner alternating by 90 ° or - 90 °. With multiple folding it happens for stacking several folds. With a more comfortable one Embodiment according to example B is a double kink when folding the fold, in such a way that the resulting kinks are offset, which achieves a good packing density.
- FIG. 8 shows a stamped and bent part 31 with a shaped center tap 32 shown. The folded edges 33 are also indicated. At this stamped and bent part 31 is simply three electrical connections realize. The electrical connections are with a and c and the Center tap marked with b.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
- Figur 1
- erste Ausführungsform des erfindungsgemäßen Kompaktelektrikblocks
- Figur 2
- zweite Ausführungsform des erfindungsgemäßen Kompaktelektrikblocks
- Figur 3
- Transformatorkern
- Figur 4
- erste Ausführungsform zur Herstellung einer gefalteten Wicklung
- Figur 5
- zweite Ausführungsform zur Herstellung einer gefalteten Wicklung
- Figur 6
- dritte Ausführungsform zur Herstellung einer gefalteten Wicklung
- Figur 7
- gefaltete Wicklung
- Figur 8
- Stanzblechteil zur Herstellung einer gefalteten Wicklung
Auch der Rand der Abdeckung 22 trägt eine Dichtung 23, auf welcher der Kunststoffträgerkörper 1 aufliegt. Somit werden mögliche Dichtigkeitsprobleme beim Anschluß an die Grundplatte durch die angespritzte Dichtlippe umgangen.
Claims (20)
- Planartransformator, bestehend aus mindestens einer Primärwicklung und mindestens einer Sekundärwicklung und einem Transformatorkern, dadurch gekennzeichnet, daß die Primär- und die Sekundärwicklung (3a, 3b) jeweils aus einem gefalteten, einen unrunden Querschnitt aufweisenden elektrischen Leiter (15) bestehen.
- Planartransformator nach Anspruch 1, dadurch gekennzeichnet, daß der elektrische Leiter (15) als Metallband (16) oder als Blechformteil (31) ausgebildet ist.
- Planartransformator nach Anspruch 2, dadurch gekennzeichnet, daß parallel zum elektrischen Leiter (15) mindestens eine Isolierlage (24) vorhanden ist, welche in einem Arbeitsgang mit dem elektrischen Leiter (15) faltbar ist.
- Planartransformator nach Anspruch 3, dadurch gekennzeichnet, daß die Isolierlage (24) zur Fixierung des Leiters (15) selbstklebend ausgebildet ist.
- Planartransformator nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß mindestens zwei Metallbänder gleichzeitig gefaltet werden, die gemeinsam auf der Isolierlage (24) angeordnet sind.
- Verfahren zur Herstellung einer Wicklung, insbesondere für einen Planartransformator, bestehend aus einem elektrischen Leiter, dadurch gekennzeichnet, daß der elektrische Leiter (15) in vorgegebenen Abständen gefaltet wird.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß das lose Ende des elektrischen Leiters (15) in einem ersten vorgegebenen Abstand um einen vorgegebenen ersten Winkel in eine vorgegebene Richtung gefaltet wird und nach einem zweiten vorgegebenen Abstand um einen zweiten vorgegebenen Winkel in der der vorgegebenen Richtung entgegengesetzten Richtung gefaltet wird.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß der elektrische Leiter (15) abwechselnd um einen vorgegebenen Winkel in eine vorgegebene Richtung bzw. in dieser vorgegebenen Richtung entgegengesetzte Richtung gefaltet wird.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß der elektrische Leiter (15) in gleichmäßigen Abständen immer in derselben Richtung um den vorgegebenen Winkel gefaltet wird, wobei der Leiter nach jeder Faltung um 180 ° gedreht wird.
- Kompakte elektrische Vorrichtung, insbesondere Schaltnetzteil, mit einem Transformator zur Angleichung verschiedener elektrischer Spannungen zwischen einer elektrischen Schaltung und einer, mit einer Bezugsspannung verbindbaren Kontaktiereinrichtung, wobei wenigstens eine Primärwicklung des Transformators mit der Kontaktiereinrichtung und wenigstens eine Sekundärwicklung des Transformators mit der elektrischen Schaltung über erste elektrische Verbindungen verbunden sind, wobei die Primär- und die Sekundärwicklung wenigsten einen Teil eines Transformatorkerns umschließen, dadurch gekennzeichnet, daß die Primär- und die Sekundärwicklung (3a, 3b) jeweils aus einem gefalteten elektrischen Leiter (15) bestehen, welcher einen unrunden Querschnitt aufweist.
- Kompakte elektrische Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Primär- und die Sekundärwicklung (3a, 3b) und/oder die ersten elektrischen Verbindungen (2) und/oder der Kontaktiereinrichtung (4, 5) in einem aus isolierendem Material bestehenden Trägerkörper (1) zumindest teilweise angeordnet sind, und die auf einem Trägerelement (8) angeordnete elektrische Schaltung (11) über eine elektrische zweite Verbindung mit mindestens einer ersten elektrischen Verbindung (2) des Trägerkörpers (1) verbunden ist.
- Kompakte elektrische Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß mindestens ein Kontaktstift (12) auf dem ebenen Trägerelement (8) zur Verbindung der elektrischen Schaltung (11) mit wenigstens einer ersten elektrischen Verbindung (2) des Trägerkörpers (1) angeordnet ist, welcher in eine mit der wenigstens einen ersten elektrischen Verbindung (2) elektrisch verbundenen Öffnung (6, 7) hineinragt.
- Kompakte elektrische Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der Kontaktstift (12) in die Öffnung (6, 7) des Trägerkörpers (1) zur Herstellung der elektrischen Verbindung eingepresst ist.
- Kompakte elektrische Vorrichtung nach einem der vorhergehenden Ansprüche 10 bis 13, dadurch gekennzeichnet, daß die ersten elektrischen Verbindungen (2) als Blechformteile ausgebildet sind.
- Kompakte elektrische Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß die Blechformteile (2) aus dem Trägerkörper (1) zur Bildung der elektrischen Anschlüsse (4) der Kontaktiereinrichtung (4,5) hinausgeführt sind, wobei der Körper (5) der Kontaktiereinrichtung (4, 5) durch den Trägerkörper (1) gebildet ist.
- Kompakte elektrische Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß der Trägerkörper (1) Bestandteil eines Gehäuses ist, welches das die elektronische Schaltung (11) tragende Trägerelement (8) abdeckt.
- Kompakte elektrische Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß der Trägerkörper (1) als Gehäusemittelteil (19) mit einer einseitig angespritzten Dichtung (20) zur Auflage auf dem Trägerelement (8) ausgebildet ist, wobei das Gehäusemittelteil (19) mit einer planen Abdeckung (22) verschlossen ist, die ebenfalls eine angespritzte Dichtung (23) aufweist, die auf dem Gehäusemittelteil aufliegt.
- Kompakte elektrische Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß das Trägerelement (8) aus Metall, vorzugsweise Aluminium besteht und gleichzeitig zur Kühlung für die Leistungsbauelemente (11) der elektrischen Schaltung dient.
- Kompakte elektrische Vorrichtung nach Anspruch 18, dadurch gekennzeichnet, daß das Trägerelement (8) ein Substrat (9) trägt, welches aus auf wärmeleitender Keramik aufgebrachtem Kupfer (10) besteht.
- Kompakte elektrische Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß der Transformatorkern (13,14) zweiteilig ausgebildet ist, wobei ein erstes, E-ähnliches Kernelement (13) auf dem Trägerelement (8) aufliegt, dessen drei senkrecht vom Trägerelement (8) wegweisenden Stege (13a, 13b, 13c) durch entsprechende Transformatoröffnungen des Trägerkörpers (1) greifen und ein zweites, eben oder E-ähnlich ausgebildetes Kernelement (14) die Stege (13a, 13b, 13c) magnetisch miteinander verbindet, wobei die Primär- und Sekundärwicklung (3a, 3b) umlaufend zwischen den Stegen (13a, 13b, 13c) angeordnet sind.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944072 | 1999-09-14 | ||
DE19944072 | 1999-09-14 | ||
DE10039890A DE10039890A1 (de) | 1999-09-14 | 2000-08-16 | Planartransformator und Verfahren zur Herstellung seiner Wicklung sowie eine kompakte elektrische Vorrichtung mit einem solchen Planartransformator |
DE10039890 | 2000-08-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1085537A2 true EP1085537A2 (de) | 2001-03-21 |
EP1085537A3 EP1085537A3 (de) | 2001-04-11 |
Family
ID=26006706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00119213A Withdrawn EP1085537A3 (de) | 1999-09-14 | 2000-09-06 | Planartransformator und Verfahren zur Herstellung seiner Wicklung sowie eine kompakte elektrische Vorrichtung mit einem solchen Planartransformator |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1085537A3 (de) |
JP (1) | JP2001126933A (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2251959A1 (de) * | 2009-05-15 | 2010-11-17 | Electric Drive Technology AG | Elektrische Spulengruppe und Verfahren zur Herstellung einer derartigen Spulengruppe |
EP2863402A1 (de) * | 2013-10-18 | 2015-04-22 | ABB Technology AG | Bandwicklung für Hochspannungstransformatoren |
US9620278B2 (en) | 2014-02-19 | 2017-04-11 | General Electric Company | System and method for reducing partial discharge in high voltage planar transformers |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011009433A (ja) * | 2009-06-25 | 2011-01-13 | Fuji Electric Systems Co Ltd | エッジワイズ巻き磁気部品 |
CN102403419B (zh) * | 2011-11-09 | 2013-08-21 | 东莞勤上光电股份有限公司 | 一种大功率led散热结构的制作工艺 |
CN103077808B (zh) * | 2013-02-01 | 2014-03-05 | 明珠电气有限公司 | 一种用于核电站的1e级干式变压器 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5274904A (en) * | 1991-08-07 | 1994-01-04 | Grumman Aerospace Corporation | Guideway coil of laminated foil construction for magnetically levitated transportation system |
EP0601791A1 (de) * | 1992-12-11 | 1994-06-15 | AT&T Corp. | Oberflächenmontiertes magnetisches Leistungselement und Verfahren zu dessen Herstellung |
GB2294593A (en) * | 1994-10-26 | 1996-05-01 | Whitaker Corp | Electrical winding and method of making the same |
EP0735551A1 (de) * | 1995-03-29 | 1996-10-02 | Valeo Electronique | Transformatoreinrichtung, insbesondere für eine Versorgungseinrichtung von Entladungslampen in Kraftfahrzeugen |
EP0741396A1 (de) * | 1995-05-04 | 1996-11-06 | AT&T IPM Corp. | Magnetische Leistungsvorrichtung mit drahtlose Leiterplattenanschluss und ihr Herstellungsverfahren |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5936411B2 (ja) * | 1980-01-31 | 1984-09-04 | 株式会社明電舎 | 箔巻線の製造装置 |
-
2000
- 2000-09-06 EP EP00119213A patent/EP1085537A3/de not_active Withdrawn
- 2000-09-13 JP JP2000278530A patent/JP2001126933A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5274904A (en) * | 1991-08-07 | 1994-01-04 | Grumman Aerospace Corporation | Guideway coil of laminated foil construction for magnetically levitated transportation system |
EP0601791A1 (de) * | 1992-12-11 | 1994-06-15 | AT&T Corp. | Oberflächenmontiertes magnetisches Leistungselement und Verfahren zu dessen Herstellung |
GB2294593A (en) * | 1994-10-26 | 1996-05-01 | Whitaker Corp | Electrical winding and method of making the same |
EP0735551A1 (de) * | 1995-03-29 | 1996-10-02 | Valeo Electronique | Transformatoreinrichtung, insbesondere für eine Versorgungseinrichtung von Entladungslampen in Kraftfahrzeugen |
EP0741396A1 (de) * | 1995-05-04 | 1996-11-06 | AT&T IPM Corp. | Magnetische Leistungsvorrichtung mit drahtlose Leiterplattenanschluss und ihr Herstellungsverfahren |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 005, no. 181 (E-083), 20. November 1981 (1981-11-20) & JP 56 108224 A (MEIDENSHA ELECTRIC MFG CO LTD), 27. August 1981 (1981-08-27) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2251959A1 (de) * | 2009-05-15 | 2010-11-17 | Electric Drive Technology AG | Elektrische Spulengruppe und Verfahren zur Herstellung einer derartigen Spulengruppe |
WO2010130318A1 (en) * | 2009-05-15 | 2010-11-18 | Electric Drive Technology Ag | Group of electrical coils and method for producing such group of coils |
EP2863402A1 (de) * | 2013-10-18 | 2015-04-22 | ABB Technology AG | Bandwicklung für Hochspannungstransformatoren |
US9620278B2 (en) | 2014-02-19 | 2017-04-11 | General Electric Company | System and method for reducing partial discharge in high voltage planar transformers |
US10236113B2 (en) | 2014-02-19 | 2019-03-19 | General Electric Company | System and method for reducing partial discharge in high voltage planar transformers |
Also Published As
Publication number | Publication date |
---|---|
EP1085537A3 (de) | 2001-04-11 |
JP2001126933A (ja) | 2001-05-11 |
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