EP0522475A1 - Elément inductif et son procédé de fabrication - Google Patents

Elément inductif et son procédé de fabrication Download PDF

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Publication number
EP0522475A1
EP0522475A1 EP92111382A EP92111382A EP0522475A1 EP 0522475 A1 EP0522475 A1 EP 0522475A1 EP 92111382 A EP92111382 A EP 92111382A EP 92111382 A EP92111382 A EP 92111382A EP 0522475 A1 EP0522475 A1 EP 0522475A1
Authority
EP
European Patent Office
Prior art keywords
layers
windings
insulating material
winding
inductive component
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.)
Granted
Application number
EP92111382A
Other languages
German (de)
English (en)
Other versions
EP0522475B1 (fr
Inventor
Jürgen Pilniak
Hermann Struck
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0522475A1 publication Critical patent/EP0522475A1/fr
Application granted granted Critical
Publication of EP0522475B1 publication Critical patent/EP0522475B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • 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
    • H01F41/12—Insulating of windings
    • H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil

Definitions

  • the invention relates to an inductive component with at least two windings and a method for producing such a component.
  • Inductive components are, for example, transformers, transformers, converters or choke coils.
  • inductive components can be manufactured according to the prior art in that enamel-insulated round copper wires or insulated flat copper strips are wound on bobbins as winding carriers.
  • insulation foils are co-wound or, for example, multi-chamber bobbins are used. In some cases, additional full resin casting or impregnation is required.
  • the known inductive components have a relatively large volume and require a large amount of material.
  • the manufacture requires complicated winding machines or labor-intensive manufacturing processes.
  • the invention is therefore based on the object of specifying improved inductive components or an improved production method for such components.
  • an inductive component in particular a transformer with at least two windings, each of which can have one or more windings, all windings being arranged in a common winding package which is designed as a multilayer stack arrangement.
  • Insulating material layers and structured metal layers are alternately stacked on top of one another as windings and permanently connected, for example by the action of temperature and pressure during manufacture, to form the winding package. Electrical connections between structured metal layers to be contacted are made by means of metallic connecting pins.
  • the inductive components according to the invention are notable for a particularly small size and for saving material, since, for example, no separate coil former is required.
  • the electrical insulation requirements can take up less space be met.
  • the inductive components can be produced inexpensively and have advantageous technical data, in particular a large main inductance, a low power loss and thus also a good efficiency.
  • FIG. 1 a shows the front view and FIG. 1 b shows the side view of a transformer 1 according to the invention.
  • the transformer 1 contains a core 2 and a winding package 3 with connections 4, which correspond to the connections shown in FIG. 2 with 4.11, 4.13, 4.21, 4.22 and 4.23 are specified.
  • Fig. 1a holes 5 can also be seen, in which connecting pins 6 (see Fig. 5f) are inserted.
  • FIGS. 1a and 1b shows the electrical circuit diagram of the transformer 1 shown in FIGS. 1a and 1b.
  • the transformer 1 has two primary windings 7a and 7b and two secondary windings 8a and 8b.
  • the transformer 1 can have further windings, for example for auxiliary voltages contain.
  • the primary windings 7a and 7b are connected in series with the aid of a bridge 13, which is realized by means of connecting pins 6 in the upper row of bores 5 in FIG. 1a, as by comparison with Figures 5a and 5b can be understood.
  • the secondary windings 8a and 8b are electrically connected in series, but a metal part 11 and connecting pins 6 shown in FIG. 5e are used to implement a secondary-side connection point 14, which is led out as connection 4.22.
  • Fig. 3 the layered structure of the winding package 3 according to the invention is shown schematically for the embodiment shown in the remaining figures.
  • the following are stacked on top of one another: a first insulating material layer 9, the second primary winding 7b, a further insulating layer 9, the second secondary winding 8b, an insulating layer 9, the first secondary winding 8a, an insulating layer 9, the first primary winding 7a, an insulating layer 9, a metal part ( see FIG. 5e) for establishing the connection on the secondary side to the winding ends 14.1 and 14.2 via (not shown in FIG. 3) connecting pins 6 and an upper insulating layer 9.
  • the insulating material layers 9, of the individual levels are dimensioned with regard to their thickness in accordance with the respective insulation requirements.
  • the layers of insulating material are somewhat larger than the metal layers 11, so that baking of the insulating layers 9 in a manufacturing step in which deformation of the insulating material layers or melting of the resin contained therein is brought about by the action of temperature and pressure, also in an edge region 10 and in Spaces between the structured Metal layers 11 a closed electrically insulating layer is reached.
  • the meltable resin hardens on cooling and creates a permanent connection between the layers of the winding package.
  • the insulating material layers 9 can be designed as multi-layer glass fiber mats or plates, the respective insulation requirements being met by choosing an appropriate number of layers. For example, a smaller number of layers may be sufficient to insulate several secondary windings from one another than to insulate between primary and secondary windings.
  • insulating material layers 9 such as, for example, ceramic plates, which can be connected to structured copper foils, for example, in the direct connection method.
  • FIG. 4 shows the winding package 3 of the transformer shown in FIG. 1.
  • FIGS. 5a to 5f show the metal parts of the winding package 3.
  • FIGS. 5a to 5d show structured metal layers 11 which are designed, for example, as 0.5 mm thick copper sheets.
  • the structuring into flat, for example 5 or 8 mm wide, spiral turns of a coil can be achieved by punching, etching or other methods. Molded external connections 4.11, 4.13, 4.21 and 4.23 are produced at the same time.
  • To produce the primary winding with connections 4.11 and 4.13 two partial windings 7a and 7b, each with three turns, are used.
  • the winding ends 13.1 and 13.2 inside the spirals are interconnected to produce the bridge 13 shown in FIG. 2.
  • the two partial windings 7a and 7b are placed one above the other with the interposition of an insulating material layer 9, as shown in FIG. 6.
  • the partial windings 7a and 7b are of identical design, but are superimposed in a mirror-image relationship to one another, so that the winding ends 13.1 and 13.2 lie one above the other and can be connected to one another by means of connecting pins 6, in order to implement the bridge 13
  • the secondary windings 8a and 8b are designed and placed one above the other, but the bridge 14 is realized by connecting the winding ends 14.1 and 14.2 to the metal piece shown in FIG. 5e, again using connecting pins 6, one of which is shown in FIG. 5f is shown.
  • the arrangement of the piece of metal shown in Fig. 5e, which is also terminal 4.22, is indicated in Fig. 1 with dashed lines.
  • connection pins 6 Square pins made of a copper alloy are provided as connecting pins 6, which are dimensioned in relation to the bores 5 in such a way that cold welding occurs when the pins are pressed into the bores 5. It goes without saying that the pins can also have a different shape and that the electrical and mechanical connection can also be produced in a different way.
  • FIG. 7 shows a preferred embodiment of the insulating material layer 9, namely as a glass fiber fabric mat or plate which contains a meltable resin.
  • a cutout 15 is kept free for the core 2 in the insulating material layer 9.
EP92111382A 1991-07-10 1992-07-04 Elément inductif et son procédé de fabrication Expired - Lifetime EP0522475B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122796A DE4122796A1 (de) 1991-07-10 1991-07-10 Induktives bauelement und verfahren zu seiner herstellung
DE4122796 1991-07-10

Publications (2)

Publication Number Publication Date
EP0522475A1 true EP0522475A1 (fr) 1993-01-13
EP0522475B1 EP0522475B1 (fr) 1996-05-22

Family

ID=6435813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111382A Expired - Lifetime EP0522475B1 (fr) 1991-07-10 1992-07-04 Elément inductif et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP0522475B1 (fr)
AT (1) ATE138493T1 (fr)
DE (2) DE4122796A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608127A1 (fr) * 1993-01-22 1994-07-27 AT&T Corp. Système d'isolation pour enroulements magnétiques avec des conducteurs plats empilés
DE4422827A1 (de) * 1993-06-29 1995-01-12 Yokogawa Electric Corp Geschichtete vergossene Wicklung und Verfahren zu ihrer Herstellung
EP0671800A1 (fr) * 1993-09-29 1995-09-13 Nippondenso Co., Ltd. Bobine de champ pour moteur
DE19542357A1 (de) * 1995-10-24 1997-04-30 Abb Patent Gmbh Schaltungsanordnung für einen AC/DC-Konverter mit Potentialtrennung und induktives Bauelement zur Verwendung in einer solchen Schaltungsanordnung
EP0771063A1 (fr) 1995-10-24 1997-05-02 ABBPATENT GmbH Disposition de circuit pour convertiseur AC-DC avec isolation galvanique et composant inductif pour utilisation dans un tel circuit
WO1998041998A1 (fr) * 1997-03-19 1998-09-24 George Nachev Nachev Enroulements de transformateurs et bande conductrice profilee correspondante
EP1041587A1 (fr) * 1999-03-31 2000-10-04 Siemens Aktiengesellschaft Transformateur, convertisseur ou inductance avec bobines en disque et procédé de fabrication d'un tel composant
EP1085535A1 (fr) * 1999-09-20 2001-03-21 Epcos Ag Transformateur planaire
WO2004013876A1 (fr) * 2002-07-26 2004-02-12 Philips Intellectual Property & Standards Gmbh Dispositif comprenant un agencement de circuit comportant un element inducteur
CN107578898A (zh) * 2017-09-29 2018-01-12 东翔电子（东莞）有限公司 一种内置多层电路的变压器骨架及其制备方法
EP3340260A1 (fr) * 2016-12-22 2018-06-27 AT & S Austria Technologie & Systemtechnik Aktiengesellschaft Inducteur constitué d'un matériau support de composant comprenant des structures de plaques électroconductrices
US20220068544A1 (en) * 2020-08-31 2022-03-03 Transon Co., Ltd. Primary coil assembly for transformer and transformer including the same
WO2022200418A1 (fr) * 2021-03-26 2022-09-29 Siemens Mobility GmbH Dispositif de connexion électrique doté d'un piège planaire
WO2023079470A1 (fr) * 2021-11-03 2023-05-11 Leonardo Busi Inducteur plan dans l'air, en particulier pour circuits de puissance radiofréquence

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476898A1 (fr) * 1980-02-22 1981-08-28 Mini Informatiq System Ste Eur Bobinage electromagnetique comportant des elements discrets et dispositif d'alimentation electrique comportant de tels bobinages
US4410585A (en) * 1981-03-02 1983-10-18 General Electric Company Layer insulation for use in high-voltage electrical equipment
EP0435461B1 (fr) * 1989-12-29 1995-01-18 AT&T Corp. Composant magnétique de faible profil ayant plusieurs enroulements à couches

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE28947C (de) * L. gaulard und J. D. GlBBS in London Neuerungen an Induktoren zur Erzeugung sekundärer Ströme von verschiedener Stärke für die Vertheilung der elektrischen Kraft
DE2260492A1 (de) * 1972-12-11 1974-06-12 Wilfried Strauss Elektrischer transformator mit gedruckter anordnung
JPS52103633A (en) * 1976-02-27 1977-08-31 Nippon Telegr & Teleph Corp <Ntt> High frequency transformer for use of big current
DE8226746U1 (de) * 1982-09-23 1983-04-14 Schwär, Gerhard, 2070 Ahrensburg Transformator
FR2615319B1 (fr) * 1987-05-15 1989-07-07 Bull Sa Transformateur a fort couplage adapte a un circuit d'alimentation a decoupage et circuit d'alimentation a decoupage comportant un tel transformateur
US5072324A (en) * 1990-01-11 1991-12-10 Magnex Corporation Thin film transducer/transformer assembly
JP2531897B2 (ja) * 1991-05-15 1996-09-04 インターナショナル・ビジネス・マシーンズ・コーポレイション 平面変圧器
CN2091488U (zh) * 1991-05-31 1991-12-25 黄必大 印刷电路式变压器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2476898A1 (fr) * 1980-02-22 1981-08-28 Mini Informatiq System Ste Eur Bobinage electromagnetique comportant des elements discrets et dispositif d'alimentation electrique comportant de tels bobinages
US4410585A (en) * 1981-03-02 1983-10-18 General Electric Company Layer insulation for use in high-voltage electrical equipment
EP0435461B1 (fr) * 1989-12-29 1995-01-18 AT&T Corp. Composant magnétique de faible profil ayant plusieurs enroulements à couches

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608127A1 (fr) * 1993-01-22 1994-07-27 AT&T Corp. Système d'isolation pour enroulements magnétiques avec des conducteurs plats empilés
DE4422827A1 (de) * 1993-06-29 1995-01-12 Yokogawa Electric Corp Geschichtete vergossene Wicklung und Verfahren zu ihrer Herstellung
EP0671800A1 (fr) * 1993-09-29 1995-09-13 Nippondenso Co., Ltd. Bobine de champ pour moteur
EP0671800A4 (fr) * 1993-09-29 1996-07-24 Nippon Denso Co Bobine de champ pour moteur.
US6076251A (en) * 1993-09-29 2000-06-20 Nippondenso Co., Ltd. Method of manufacturing a field coil for motors
DE19542357A1 (de) * 1995-10-24 1997-04-30 Abb Patent Gmbh Schaltungsanordnung für einen AC/DC-Konverter mit Potentialtrennung und induktives Bauelement zur Verwendung in einer solchen Schaltungsanordnung
EP0771063A1 (fr) 1995-10-24 1997-05-02 ABBPATENT GmbH Disposition de circuit pour convertiseur AC-DC avec isolation galvanique et composant inductif pour utilisation dans un tel circuit
WO1998041998A1 (fr) * 1997-03-19 1998-09-24 George Nachev Nachev Enroulements de transformateurs et bande conductrice profilee correspondante
EP1041587A1 (fr) * 1999-03-31 2000-10-04 Siemens Aktiengesellschaft Transformateur, convertisseur ou inductance avec bobines en disque et procédé de fabrication d'un tel composant
EP1085535A1 (fr) * 1999-09-20 2001-03-21 Epcos Ag Transformateur planaire
WO2004013876A1 (fr) * 2002-07-26 2004-02-12 Philips Intellectual Property & Standards Gmbh Dispositif comprenant un agencement de circuit comportant un element inducteur
EP3340260A1 (fr) * 2016-12-22 2018-06-27 AT & S Austria Technologie & Systemtechnik Aktiengesellschaft Inducteur constitué d'un matériau support de composant comprenant des structures de plaques électroconductrices
CN108231365A (zh) * 2016-12-22 2018-06-29 奥特斯奥地利科技与系统技术有限公司 包括导电板结构的由器件载体材料制成的电感器
US10861636B2 (en) 2016-12-22 2020-12-08 At&S Austria Technologie & Systemtechnik Aktiengesellschaft Inductor made of component carrier material comprising electrically conductive plate structures
CN108231365B (zh) * 2016-12-22 2021-05-11 奥特斯奥地利科技与系统技术有限公司 包括导电板结构的由器件载体材料制成的电感器
EP3944271A1 (fr) * 2016-12-22 2022-01-26 AT & S Austria Technologie & Systemtechnik Aktiengesellschaft Inducteur constitué d'un matériau support de composant comprenant des structures de plaques électroconductrices
CN107578898A (zh) * 2017-09-29 2018-01-12 东翔电子（东莞）有限公司 一种内置多层电路的变压器骨架及其制备方法
US20220068544A1 (en) * 2020-08-31 2022-03-03 Transon Co., Ltd. Primary coil assembly for transformer and transformer including the same
US11901109B2 (en) * 2020-08-31 2024-02-13 Transon Co., Ltd. Primary coil assembly for transformer and transformer including the same
WO2022200418A1 (fr) * 2021-03-26 2022-09-29 Siemens Mobility GmbH Dispositif de connexion électrique doté d'un piège planaire
WO2023079470A1 (fr) * 2021-11-03 2023-05-11 Leonardo Busi Inducteur plan dans l'air, en particulier pour circuits de puissance radiofréquence

Also Published As

Publication number Publication date
DE59206342D1 (de) 1996-06-27
EP0522475B1 (fr) 1996-05-22
DE4122796A1 (de) 1993-01-21
ATE138493T1 (de) 1996-06-15

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