EP1105893B1 - Procede pour la fabrication de composants inductifs - Google Patents

Procede pour la fabrication de composants inductifs Download PDF

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Publication number
EP1105893B1
EP1105893B1 EP99952348A EP99952348A EP1105893B1 EP 1105893 B1 EP1105893 B1 EP 1105893B1 EP 99952348 A EP99952348 A EP 99952348A EP 99952348 A EP99952348 A EP 99952348A EP 1105893 B1 EP1105893 B1 EP 1105893B1
Authority
EP
European Patent Office
Prior art keywords
mould
melt adhesive
winding
inductive components
magnetic core
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
EP99952348A
Other languages
German (de)
English (en)
Other versions
EP1105893A1 (fr
Inventor
Harald Hundt
Klemens Trabold
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
Publication of EP1105893A1 publication Critical patent/EP1105893A1/fr
Application granted granted Critical
Publication of EP1105893B1 publication Critical patent/EP1105893B1/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
    • H01F41/005—Impregnating or encapsulating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling

Definitions

  • the invention relates to a method for producing inductive Components, in particular current transformers for electricity meters.
  • a cable run through a hole in the housing wall requires an additional seal and thus also one greater effort, which is economically disadvantageous.
  • Object of the present invention is therefore a new Manufacturing method for inductive components, in particular for Current transformers, specify in which the above problems be largely avoided.
  • the molds used are usually made of aluminum or an aluminum alloy that is substantially less expensive are considered to be the injection molds required for the housing used in the prior art.
  • These shapes can also be compared to the prior art significantly shorter time-to-market, because the shapes are much easier. This happens quick and easy changes of customized Embodiments of the inductive components.
  • Hot melt adhesive composition under a pressure of 0 to 20 bar, preferably from about 10 to 20 bar, being used as melt adhesive mass a polyamide-based thermoplastic hot melt adhesive is provided is.
  • This is in particular one non-porous polyamide-based hotmelt adhesive.
  • the usage This polyamide hot melt adhesives opens up significantly better ways of recycling inductive components, because with the inductive components only a single Plastic is used.
  • the terminals of the winding or the terminals of the windings before inserting the magnetic core into the mold from the mold in a well-defined way led out.
  • connections while cables are provided.
  • the lead out of these cables takes place directly via grooves in the form, with an exit through the special process is prevented by hot melt adhesive composition.
  • toroidal cores of metallic Alloys in particular toroidal cores of amorphous or nanocrystalline alloys.
  • amorphous or nanocrystalline alloys results over the previously used crystalline Alloys or ferrite cores a significant volume reduction as well as much better technical characteristics of the inductive components of the type mentioned.
  • the advantage and the properties of these amorphous or nanocrystalline Alloys are described, for example, in EP 0 271 657 B1 described in detail.
  • the secondary winding 3 consists mostly of some 100 to some 1000 turns.
  • the secondary winding 3 of this Current transformer 1 consists of relatively thin wire, d. H. the wire has a thickness of 0.05 to 0.25 mm.
  • the ends the secondary winding 3 shown here are as two-wire Litz 5 executed so that the current transformer 1 on a circuit board (not shown) can be connected.
  • the magnetic core 2 of the current transformer 1 shown here is a Ring band core made of an amorphous alloy.
  • the ring band core with the secondary winding 3 was on the Low-pressure Schmelzgußhabilit according to the invention produced.
  • a mold made of an aluminum alloy was provided (Not shown).
  • the ring band core loaded with the secondary winding 3 thereon, wherein the secondary winding 3, the ends as a two-wire strand 5 are executed, is led out of the mold.
  • Form was closed and in the mold was melted thermoplastic melt adhesive composition based on polyamide introduced a pressure of about 15 bar. This creates around the magnetic core 2 a casting enclosing this 4.
  • the cast body 4 In the area the opening of the ring band core, the cast body 4 a through opening 5, through which the primary winding (not shown) of the current transformer 1 can be performed.
  • the mold was cooled in a defined manner. After cooling the Mold was opened the mold and the molded-on current transformer 1 was taken. After removal of the cast-iron current transformer 1, the gate was removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Insulating Of Coils (AREA)
  • Soft Magnetic Materials (AREA)

Claims (9)

  1. Procédé pour la fabrication de composants inductifs (1) présentant les étapes suivantes :
    1. préparation d'un moule métallique,
    2. introduction dans le moule du noyau magnétique (2) comportant au moins un enroulement (3),
    3. fermeture du moule,
    4. remplissage du moule par une masse d'adhésif fusible thermoplastique (4) fondu,
    5. refroidissement défini du moule,
    6. ouverture du moule et extraction du composant inductif.
  2. Procédé selon la revendication 1,
    dans lequel
    le moule est en aluminium ou en alliage d'aluminium
  3. Procédé selon la revendication 1 ou 2,
    dans lequel
    le remplissage par la masse d'adhésif fusible fondu s'effectue sous une pression de 10 à 20 bar.
  4. Procédé selon une des revendications 1 à 3,
    dans lequel
    il est prévu comme masse d'adhésif fusible un adhésif thermoplastique à base de polyamide.
  5. Procédé selon une des revendications 1 à 4,
    dans lequel
    les raccords de l'enroulement sont sortis du moule avant introduction du noyau magnétique.
  6. Procédé selon les revendications 1 à 4,
    dans lequel
    les raccords de l'enroulement sont placés dans des trous borgnes du moule.
  7. Procédé selon les revendications 1 à 6,
    dans lequel
    on utilise comme noyau magnétique, un noyau annulaire en alliage métallique.
  8. Procédé selon la revendication 7,
    dans lequel
    on utilise comme noyau annulaire, un noyau à bandes annulaires en un alliage amorphe ou nanocristallin.
  9. Procédé selon les revendications 1 à 8,
    dans lequel
    il est prévu un capteur d'intensité comme composant inductif.
EP99952348A 1998-08-10 1999-08-10 Procede pour la fabrication de composants inductifs Expired - Lifetime EP1105893B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19836146A DE19836146A1 (de) 1998-08-10 1998-08-10 Verfahren zum Herstellen von induktiven Bauelementen
DE19836146 1998-08-10
PCT/DE1999/002493 WO2000010180A1 (fr) 1998-08-10 1999-08-10 Procede pour la fabrication de composants inductifs

Publications (2)

Publication Number Publication Date
EP1105893A1 EP1105893A1 (fr) 2001-06-13
EP1105893B1 true EP1105893B1 (fr) 2005-04-20

Family

ID=7877055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99952348A Expired - Lifetime EP1105893B1 (fr) 1998-08-10 1999-08-10 Procede pour la fabrication de composants inductifs

Country Status (5)

Country Link
US (2) US6663815B1 (fr)
EP (1) EP1105893B1 (fr)
JP (1) JP2002524840A (fr)
DE (2) DE19836146A1 (fr)
WO (1) WO2000010180A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014072062A1 (fr) 2012-11-12 2014-05-15 Premo, Sl Dispositif capteur de courant de cms et ses utilisations

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10024824A1 (de) * 2000-05-19 2001-11-29 Vacuumschmelze Gmbh Induktives Bauelement und Verfahren zu seiner Herstellung
WO2004088681A2 (fr) 2003-04-02 2004-10-14 Vacuumschmelze Gmbh & Co. Kg Noyau magnetique, procede de realisation associe, utilisation d'un noyau magnetique de ce type notamment dans des transformateurs de courant et dans des bobines de choc a compensation de courant, alliages et bandes pour realiser un tel noyau magnetique
DE102006028389A1 (de) * 2006-06-19 2007-12-27 Vacuumschmelze Gmbh & Co. Kg Magnetkern und Verfahren zu seiner Herstellung
DE102007034925A1 (de) * 2007-07-24 2009-01-29 Vacuumschmelze Gmbh & Co. Kg Verfahren zur Herstellung von Magnetkernen, Magnetkern und induktives Bauelement mit einem Magnetkern

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242958A1 (de) * 1972-08-29 1974-03-14 Siemens Ag Stromwandler mit in einem giessharzkoerper eingebetteter primaerwicklungsanordnung
US4210859A (en) * 1978-04-18 1980-07-01 Technion Research & Development Foundation Ltd. Inductive device having orthogonal windings
JPS56112710A (en) * 1980-02-12 1981-09-05 Toshiba Corp Manufacture of molded transformer
JPS57122506A (en) * 1980-12-26 1982-07-30 Mitsubishi Electric Corp Simplified molding method for through current transformer
KR930005345B1 (ko) * 1986-10-23 1993-06-17 후지덴기 가부시기가이샤 소형모터의 고정자 하우징과 회전자
US4910861A (en) * 1988-10-07 1990-03-27 Emerson Electric Co. Method of manufacturing retention structure for electric motor rotor magnets
JP2597678B2 (ja) * 1988-10-20 1997-04-09 松下電工株式会社 電流トランス
DE4015752A1 (de) * 1990-05-16 1991-11-21 Basf Lacke & Farben In amidischen loesungsmitteln geloeste schmelzklebelacke fuer hochtemperaturbestaendige beschichtungen
JP2884742B2 (ja) 1990-08-23 1999-04-19 タカタ株式会社 加速度センサの製作方法
US5331730A (en) 1992-09-03 1994-07-26 Siemens Automotive L.P. Method of making a coil molded into a magnetic stator
US5589808A (en) * 1993-07-28 1996-12-31 Cooper Industries, Inc. Encapsulated transformer
DE4426138C2 (de) * 1994-07-22 1998-04-23 Siemens Ag Gießform für eine Transformatorspule mit Kontrollmöglichkeit des Vergusses
FR2723248B1 (fr) 1994-07-29 1996-09-20 Seb Sa Procede de realisation d'un inducteur
JP3374356B2 (ja) 1995-05-26 2003-02-04 出光石油化学株式会社 発泡成形体の製造方法及び発泡成形体
GB2307661B (en) 1995-11-30 1998-04-29 Honda Lock Mfg Co Ltd Electromagnetic sensor and moulding die used for manufacturing the same
DE19746605A1 (de) * 1996-10-28 1998-06-10 Papst Motoren Gmbh & Co Kg Verfahren zum Isolieren des Stators eines elektronisch kommutierten Gleichstrommotors
US6103157A (en) 1997-07-02 2000-08-15 Ciba Specialty Chemicals Corp. Process for impregnating electrical coils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014072062A1 (fr) 2012-11-12 2014-05-15 Premo, Sl Dispositif capteur de courant de cms et ses utilisations

Also Published As

Publication number Publication date
US6663815B1 (en) 2003-12-16
JP2002524840A (ja) 2002-08-06
DE59911952D1 (de) 2005-05-25
USRE41269E1 (en) 2010-04-27
DE19836146A1 (de) 2000-02-24
EP1105893A1 (fr) 2001-06-13
WO2000010180A1 (fr) 2000-02-24

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