EP0175069B1 - Fabrication d'un élément inductif muni d'un noyau toroidal bobiné - Google Patents

Fabrication d'un élément inductif muni d'un noyau toroidal bobiné Download PDF

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Publication number
EP0175069B1
EP0175069B1 EP85107897A EP85107897A EP0175069B1 EP 0175069 B1 EP0175069 B1 EP 0175069B1 EP 85107897 A EP85107897 A EP 85107897A EP 85107897 A EP85107897 A EP 85107897A EP 0175069 B1 EP0175069 B1 EP 0175069B1
Authority
EP
European Patent Office
Prior art keywords
container
wound core
pins
toroidal
toroidal strip
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
Application number
EP85107897A
Other languages
German (de)
English (en)
Other versions
EP0175069A1 (fr
Inventor
Johannes Dipl.-Ing. Hoeflich
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.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
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 Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Priority to AT85107897T priority Critical patent/ATE38581T1/de
Publication of EP0175069A1 publication Critical patent/EP0175069A1/fr
Application granted granted Critical
Publication of EP0175069B1 publication Critical patent/EP0175069B1/fr
Expired 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
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/062—Toroidal core with turns of coil around it
    • 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
    • H01F2027/2814—Printed windings with only part of the coil or of the winding in the printed circuit board, e.g. the remaining coil or winding sections can be made of wires or sheets

Definitions

  • the invention relates to a method for producing an inductive component with a toroidal core, which is inserted into a container made of insulating material, so that the toroidal core is enclosed by the container on one end face and - at least partially - on the inside and outside, and with at least one winding surrounding the toroidal core, which winding is formed from electrical conductors bent in a U-shape.
  • Toroidal tape cores for inductive components usually consist of coiled soft magnetic tapes. They are generally wound into an annular ring; however, oval and approximately rectangular embodiments are also possible for certain applications. With such toroidal tape cores there is an essential advantage that there is practically no air gap in the magnetic circuit, since there are no joints between core halves or core parts compared to cutting tape cores. Particularly in connection with high-quality soft magnetic materials, such components can achieve good magnetic couplings between the applied windings with small dimensions or - in the case of use as a choke - a high inductance with small dimensions can be achieved.
  • toroidal cores with not too many turns if the turns are composed of individual conductor pieces which are put together through the toroidal core and the ends of which are then used to complete the turns. be connected to each other.
  • the conductor pieces can also be introduced into insulating material parts or insulating material carriers, the insulating material carrier being expediently designed in the form of a ring and pushed over the ring band core.
  • the ends of the individual conductor pieces can be connected directly to one another or lead out to the wiring points of a switch plate.
  • JP-A-58 215 005 describes an inductive component in which U-shaped pins are introduced into an insulating body which is shaped in such a way that it fixes them. After inserting its toroidal core into the insulating body and placing a cover made of insulating material, the ends of the U-shaped pins are also connected to one another to complete the coil.
  • the object of the present invention is to provide a method of this type for producing an inductive component which at the same time ensures non-tensioning support for the toroidal core and allows the winding and fixing of a winding even more economically than the known methods mentioned.
  • FIG. 1 to 4 show an exemplary embodiment of the component according to the invention
  • FIG. 5 shows an example of a particularly advantageous way of connecting the pins.
  • Fig. 1 shows the container 1 with molded or pressed pins 3, as it looks before the use of the toroidal core 7. As can be easily seen, the pins 3 are still stretched in this state of manufacture and have not yet reached their final U-shape.
  • the toroidal core 7 (FIG. 2) is then inserted into the recess 2 in the container 1 and the longer parts of the pins 3 which protrude upward in FIG. 1 with the ends 4 are turned radially outwards and then bent down.
  • a hood 9 shown in Fig. 3 the height of which is adapted to the container, so that the ends 4 are fixed in their bent position in grooves 10, which are z. B. at the corners of the container 1.
  • Fig. 3 also shows that spacers 11 are located below the upper side of the hood 9. In the exemplary embodiment, these consist of segment-like projections and fix the ring band core 7 in the recess 2. In addition, the spacers 11 have the task of preventing contact between the ring band core 7 and the pins 3, which are each passed between two adjacent spacers 11.
  • Fig. 4 shows the finished inductive component after assembly and before putting on the hood 9. Again, the ends 4 and 6 of the pins 3 protrude on one side from the container 1 and can be easily wired there.
  • FIG. 5 shows a top view of a printed circuit board 12, contains the applied conductor tracks 13.
  • the printed circuit board 12 has holes 14 for pushing through the pins 3 of the component shown in FIG. 4 and, in addition to the illustrated conductor tracks 13, can contain any number of other conductor tracks and further inductive capacitive and electronic components.
  • Fig. 5 the connections of the fully wired component for a turn with A1 and E1 and for a winding with five turns with A5 and E5 are designated.
  • the necessary additional wiring of the turns that are open on the inside does not result in any noteworthy additional expenditure for series production, since the pins can be soldered to the printed circuit boards in one operation together with all the inserted components on the printed circuit board 12, and additional printed circuit boards are required Not significantly increase the manufacturing costs of a circuit board.
  • the arrangement according to the invention allows a ring band core to be inserted into the recess (2) in a simple manner.
  • the ring band core is held loosely in this recess and is nevertheless secured against deformation. In the case of crystalline magnetic materials, this ensures that the core windings are not braced against one another, which B. would affect the permeability.
  • the arrangement is particularly advantageous when winding toroidal tape cores from amorphous tapes.
  • the amorphous tape is held so securely in the recess that no fastening of the tape ends is required to hold the winding together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Claims (6)

1. Procédé de fabrication d'un élément inductif comportant un noyau toroïdal (7) qui est introduit dans une cuve (1) en matériau isolant, de sorte que le noyau toroïdal est entouré par la cuve sur un côté frontal et au moins partiellement sur les côtés intérieur et extérieur, et est formé d'au moins un bobinage entourant le noyau toroïdal enroulé qui est formé de pistes électriques recourbées. en forme de U, caractérisé en ce que pour la fabrication du bobinage, on introduit ou on coule dans la cuve (1) des broches séparées, droites, après l'introduction du noyau (7) dans la cuve (1) pour les recourber en forme de U sur les noyaux toroïdaux (7), et en ce que les broches recourbées en forme de U (3) sont fixées par des emboîtements d'un capot (9) dans des gorges (10), qui se trouvent à l'extérieur de la cuve (1).
2. Procédé selon la revendication 1, caractérisé en ce que le capot (9) possède des entretoises (11) en-dessous de son couvercle supérieur, qui fait saillie dans l'évidement (1), le capot étant mis en place, et avec cela maintiennent le noyau toroïdal (7) écarté des broches (3) et le fixe ainsi.
3. Procédé selon la revendication 1, caractérisé en ce que les broches en forme de U sont disposées parallèlement entre elles.
4. Procédé selon la revendication 1, caractérisé en'ce qu'il est prévu un noyau (7) toroïdal bobiné ovale ou à angles à peu près droits.
5. Procédé selon la revendication 1, caractérisé en ce que les longueurs et la position des extrémités (4, 6) des broches (3) sont adaptées à la position d'alésages (14) dans une plaquette de circuit imprimé (12), de sorte que la connexion des extrémités (4, 6) soit obtenue par des pistes conductrices (13) sur la plaquette de circuit imprimé (12).
6. Procédé selon la revendication 1, caractérisé en ce que dans la cavité (2) est prévu un noyau toroïdal bobiné en matériau amorphe.
EP85107897A 1984-09-20 1985-06-26 Fabrication d'un élément inductif muni d'un noyau toroidal bobiné Expired EP0175069B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85107897T ATE38581T1 (de) 1984-09-20 1985-06-26 Verfahren zur herstellung eines induktiven bauelements mit einem bewickelten ringbandkern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3434497 1984-09-20
DE19843434497 DE3434497A1 (de) 1984-09-20 1984-09-20 Induktives bauelement mit einem bewickelten ringbandkern

Publications (2)

Publication Number Publication Date
EP0175069A1 EP0175069A1 (fr) 1986-03-26
EP0175069B1 true EP0175069B1 (fr) 1988-11-09

Family

ID=6245866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107897A Expired EP0175069B1 (fr) 1984-09-20 1985-06-26 Fabrication d'un élément inductif muni d'un noyau toroidal bobiné

Country Status (3)

Country Link
EP (1) EP0175069B1 (fr)
AT (1) ATE38581T1 (fr)
DE (2) DE3434497A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777465A (en) * 1986-04-28 1988-10-11 Burr-Brown Corporation Square toroid transformer for hybrid integrated circuit
IT1222910B (it) * 1987-10-14 1990-09-12 Bassani Spa Metodo di avvolgimento delle spire dell'avvolgimento di una bobina con nucleo toroidale e bobina ottenuta con tale metodo
FI893511A (fi) * 1988-07-21 1990-01-22 Siemens Ag Induktiv komponent, saerskilt transformator drosselspole.
US4975671A (en) * 1988-08-31 1990-12-04 Apple Computer, Inc. Transformer for use with surface mounting technology
CH679710A5 (fr) * 1989-05-30 1992-03-31 Lem Liaisons Electron Mec
JPH06290972A (ja) * 1993-03-31 1994-10-18 Mitsubishi Electric Corp 金属プリント基板上で製作するリアクトル及びそのリアクトルを使用したインバータ装置
DE19615921A1 (de) * 1996-04-22 1997-10-23 Vacuumschmelze Gmbh Induktives Bauelement in flacher Bauform
JP2000516400A (ja) * 1996-08-19 2000-12-05 バクームシユメルツエ、ゲゼルシヤフト、ミツト、ベシユレンクテル、ハフツング インタフェース変成器
DE69803014T2 (de) * 1997-07-25 2002-07-04 Tokin Corp., Sendai Magnetischer Fühler mit einer auf den Spulenkörper aufgebrachten lineare Dünnschichtleiterabschnitte aufweisenden Erregerspule mit darauf gewickelter Detektorspule
DE10013206B4 (de) * 2000-03-17 2015-02-12 Tridonic Gmbh & Co Kg Transformator
WO2005069318A1 (fr) * 2004-01-13 2005-07-28 Delta Energy Systems (Switzerland) Ag Element magnetique
EP1744332A1 (fr) * 2005-07-11 2007-01-17 Hirschmann Electronics GmbH Translateur à haute fréquence fabriqué automatiquement
DE102008062870A1 (de) * 2008-12-17 2010-07-01 Würth Elektronik eiSos Gmbh & Co. KG Induktionsbauteil
DE102008054939A1 (de) 2008-12-18 2010-07-01 Vacuumschmelze Gmbh & Co. Kg Stromkompensierte Drossel und Verfahren zur Herstellung einer Stromkompensierten Drossel
DE102011118288B4 (de) * 2011-11-10 2022-05-12 Tdk Electronics Ag Transformator mit einer Kappe zum Abdecken eines induktiven Bauelements
CN109219247A (zh) * 2015-03-04 2019-01-15 江苏理工学院 电感回路导体与电路板的连接结构
DE102016210746A1 (de) 2016-06-16 2017-12-21 Vacuumschmelze Gmbh & Co. Kg Induktives Bauelement, stromkompensierte Drossel und Verfahren zum Herstellen eines induktiven Bauelements

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB771701A (en) * 1955-01-07 1957-04-03 Murphy Radio Ltd Inductance coils
DE1278006B (de) * 1964-02-24 1968-09-19 Siemens Ag Herstellverfahren fuer Ringkern- oder Rohrkernwicklungen und mit diesem Verfahren hergestellte Wicklungen
DE1245495B (de) * 1964-07-20 1967-07-27 Siemens Ag Verfahren zum Herstellen von Spulen mit einem Magnetkern
US3443257A (en) * 1967-06-08 1969-05-06 Gen Electric Mounted toroidal electrical component
NL178373C (nl) * 1977-06-06 1986-03-03 Philips Nv Transformator.
DE3016067A1 (de) * 1980-04-25 1981-10-29 Siemens AG, 1000 Berlin und 8000 München Hybridschaltung und verfahren zu deren herstellung

Also Published As

Publication number Publication date
EP0175069A1 (fr) 1986-03-26
DE3434497A1 (de) 1986-03-20
ATE38581T1 (de) 1988-11-15
DE3566187D1 (en) 1988-12-15

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