EP1016105A1 - Procede et dispositif de fabrication de paquets formes de lames de toles pour noyaux magnetiques - Google Patents

Procede et dispositif de fabrication de paquets formes de lames de toles pour noyaux magnetiques

Info

Publication number
EP1016105A1
EP1016105A1 EP98955324A EP98955324A EP1016105A1 EP 1016105 A1 EP1016105 A1 EP 1016105A1 EP 98955324 A EP98955324 A EP 98955324A EP 98955324 A EP98955324 A EP 98955324A EP 1016105 A1 EP1016105 A1 EP 1016105A1
Authority
EP
European Patent Office
Prior art keywords
lamellae
warts
package
depressions
lamella
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
EP98955324A
Other languages
German (de)
English (en)
Other versions
EP1016105B1 (fr
Inventor
Kurt Emmerich
Alois Hangg
Herbert Hein
Markus Widrig
Jörg Lüscher
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
Faes AG
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 Faes AG, Vacuumschmelze GmbH and Co KG filed Critical Faes AG
Publication of EP1016105A1 publication Critical patent/EP1016105A1/fr
Application granted granted Critical
Publication of EP1016105B1 publication Critical patent/EP1016105B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • 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
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y10T29/49078—Laminated
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5136—Separate tool stations for selective or successive operation on work
    • Y10T29/5137—Separate tool stations for selective or successive operation on work including assembling or disassembling station
    • Y10T29/5138—Separate tool stations for selective or successive operation on work including assembling or disassembling station and means to machine work part to fit cooperating work part
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5136—Separate tool stations for selective or successive operation on work
    • Y10T29/5137—Separate tool stations for selective or successive operation on work including assembling or disassembling station
    • Y10T29/5143—Separate tool stations for selective or successive operation on work including assembling or disassembling station and means to machine product

Definitions

  • the invention relates to a method for producing packages for magnetic cores, so-called laminated cores, consisting of linked laminations.
  • lamellae are punched out of a strip and provided on one side with depressions and on the other side with elevations which match and oppose the depressions.
  • These surveys are in the form of at least two circular warts at the
  • Sheet packs of this type are used, among other things, in various electromagnetic apparatuses, such as, for. B. chokes,
  • laminated cores in magnetic circuits has been state of the art for many years and serves to reduce eddy currents, which, for. B. in transformers to increase the losses or in solenoid valves to extend the switching times.
  • toroidal cores are used, which, however, have the disadvantage compared to the laminated cores that the coils required for actuation must be pushed on before the magnetic circuit is closed.
  • the use of laminated cores in various cases has so far not been optimized. In many applications it is desirable to keep the cutouts for the laminated cores to be inserted round or oval.
  • this is achieved by a method for producing packages for magnetic cores consisting of linked sheet metal lamellae, in which lamellae are punched out of a band and provided on one side with depressions and on the other side with elevations which correspond to and oppose the depressions, the elevations in In the form of at least two circular warts are pressed into the recesses when each package is assembled, with one lamella per package, which serves as a separation lamella, instead of the recesses being drilled into cylindrical holes into which the warts of the adjacent lamella engage.
  • lamellae are punched out of the band, which have a different outer contour, and linked together to form a package which at least partially has a round iron cross section.
  • the laminated core accordingly has stepped edges. This measure makes it possible to produce laminated cores which are adapted to a round shape with their outer contour and whose iron cross-section corresponds to more than 95% of the ideal circular shape.
  • lamellae which have a different width are punched out of the band. These slats of different widths are then linked to form a package that has an almost circular iron cross-section.
  • E-shaped lamellae are punched out of the band, the outer and / or middle legs of which have different widths.
  • middle legs can be produced whose iron cross section corresponds almost to the ideal circular shape. This makes it possible to push circular coils onto the middle leg.
  • the resulting laminated cores can in turn be adapted to the circular or oval installation requirements.
  • a very large amount of work can be achieved with just a single device if the depressions and the warts of each lamella are flow-stamped by means of stamps under the simultaneous counteracting action of counter-punches, the wart diameter being larger than that of the corresponding depression and the wart height being smaller than the depth of the ent - Talking recess, which has reached at least 50% of the slat thickness, are formed.
  • the indentations and the warts are preferably flow-stamped further by the punches for at most 10 ms after the counter punches have reached their end position.
  • the wart diameter is formed by at most 20 ⁇ m larger than that of the corresponding depression and the wart height by at most 0.1 mm smaller than the depth of the corresponding depression.
  • the slats can be pre-embossed or pre-punched at the desired locations of the depressions and the warts.
  • the device according to the invention for carrying out the method is characterized in that at least two stamps and two counter-stamps height-adjustable in the matrix are provided in the embossing station of the depressions and the warts, that each counter-stamp is provided with a collar for fixing its end position on the base of the matrix , and that brake elements are installed in the cutting station of the finished lamella below the matrix, which run transverse to the counter-punch axes and provide the required resistance when connecting the individual finished lamellae to one another. Are in the cutting station
  • Cutting punches that can be moved apart or moved back into each other in defined steps. This setting of the cutting punches to different widths of the slats to be cut is typically done automatically by an actuator.
  • lamellae 1 are punched out of a punching tape and stacked on top of one another in a follow-on tool with a plurality of workstations in order to form packages.
  • identical lamellae 1 are provided in the following tool on one side with depressions 2 and on the other side with warts 3 which match and oppose the depressions 2.
  • warts 3 which match and oppose the depressions 2.
  • one lamella, which serves as a separating lamella 1 ' is provided with cylindrical holes 4 instead of depressions.
  • the warts 3 of the adjacent lamellae then engage in these holes 4. This is shown schematically in FIG. 1.
  • Figure 2 shows a separation lamella 1 'in cross section.
  • the cutting punches are motorized to the width of the next sheet.
  • This next lamella 2 has approximately 50% of the width of the coil core.
  • the slats 3 to 11 are analogously tied with increasing width.
  • the lateral " cutting punches are then moved together again successively, so that the package shown in FIG. 3 and FIG. 4 can be removed as a finished part from the progressive tool.
  • cylindrical coil cores were produced from 0.5 mm thick grain-oriented iron silicon, which varied in diameter from 5 mm to 20 mm.
  • FIG. 5 shows an EK core 20 with a rectangular iron cross section according to the prior art.
  • EK cores are used in actuators for diesel injection valves.
  • the task here was to manufacture an EK core that can be screwed in in a limited construction volume and can achieve a high level of force.
  • the EK core 20 shown in FIG. 5 has only inadequate results since the area utilization of the round outer contour 21 for the iron cross section is only 31%.
  • the round EK core 30 shown in FIG. 6 was adapted to the round outer contour 31 using the method according to the invention.
  • the design of the progressive composite tool was carried out in the same way as for the manufacture of the cylindrical coil cores shown in FIGS. 3 and 4 by moving the cutting punches.
  • the round EK core 30 of the following invention shown in FIG. 6 has a significantly higher surface utilization in comparison to the EK core 20 from FIG. 5. A 20% higher use of space was achieved.
  • the laminated cores were in turn made of iron silicon and compared with laminated cores according to the prior art. An increase in the force level of the magnetic circuit of 20% was achieved in the actuator for a diesel injector.
  • FIG. 7 shows an EK core 40 according to the present invention with an opening in the middle leg, as can be found in DE-U 2951 4508.
  • the subject of DE-U 2951 4508 is hereby expressly incorporated (“incorporated by reference”).
  • a recess 43 is provided in the middle for the central lamellae 41, 42, so that in use a central guide for a valve rod ( In this application, too, the force level could be increased by 19% compared to a comparable laminated core with a rectangular iron cross-section .
  • the EK core 40 shown in turn consists of grain-oriented iron silicon.
  • FIG. 8 shows a laminated core 50 adapted to the round shape, in which a 44% larger iron cross-sectional area is achieved in comparison to the laminated core from FIG. 6 with a rectangular iron cross section.
  • a corresponding laminated core 50 in an installation space of 20 mm made of lamellae made of 1 mm thick iron silicon achieved a force of 78 N instead of 54 N in comparison to a laminated core 40 with a rectangular iron cross section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Electromagnets (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

L'invention concerne un procédé de fabrication permettant d'obtenir, suivant une méthode dite d'assemblage de paquets par estampage, des paquets de tôles à section du fer circulaire ou ovale. A cet effet, des lames sont estampées à partir d'une bande et sont munies d'un côté, d'évidements et, de l'autre côté, de bossages coopérant avec les évidements et opposés à ceux-ci, les bossages étant compressés dans les évidements sous forme d'au moins deux boutons circulaires, lors de l'assemblage de chaque paquet. Pour une lame par paquet, servant de lame de séparation, on perce, à la place des évidements, des trous cylindriques dans lesquels s'engagent les boutons des lames voisines. L'invention est caractérisée en ce qu'à partir de la bande, on estampe des lames présentant des profils extérieurs différents, en particulier des largeurs différentes, et en ce qu'on relie ces lames entre elles de manière à former un paquet présentant au moins partiellement une section de fer circulaire. Le paquet de tôles présente des bords étagés.
EP98955324A 1997-09-19 1998-09-14 Procede et dispositif de fabrication de paquets formes de lames de toles pour noyaux magnetiques Expired - Lifetime EP1016105B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19741364 1997-09-19
DE19741364A DE19741364C2 (de) 1997-09-19 1997-09-19 Verfahren und Vorrichtung zur Herstellung von aus Blechlamellen bestehenden Paketen für Magnetkerne
PCT/DE1998/002723 WO1999016092A1 (fr) 1997-09-19 1998-09-14 Procede et dispositif de fabrication de paquets formes de lames de toles pour noyaux magnetiques

Publications (2)

Publication Number Publication Date
EP1016105A1 true EP1016105A1 (fr) 2000-07-05
EP1016105B1 EP1016105B1 (fr) 2007-07-04

Family

ID=7842937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98955324A Expired - Lifetime EP1016105B1 (fr) 1997-09-19 1998-09-14 Procede et dispositif de fabrication de paquets formes de lames de toles pour noyaux magnetiques

Country Status (8)

Country Link
US (1) US6588093B1 (fr)
EP (1) EP1016105B1 (fr)
JP (1) JP2001517867A (fr)
KR (1) KR100367941B1 (fr)
CA (1) CA2303898C (fr)
DE (2) DE19741364C2 (fr)
HU (1) HUP0003508A3 (fr)
WO (1) WO1999016092A1 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6636137B1 (en) 1996-06-05 2003-10-21 L.H. Carbide Corporation Ignition coil assembly
US6163949A (en) * 1996-06-05 2000-12-26 L.H. Carbide Corporation Method for manufacturing long, slender lamina stack from nonuniform laminae
DE10032506A1 (de) * 2000-07-05 2002-01-17 Kienle & Spiess Stanz & Druck Verfahren zur Herstellung von Massivkernen aus Lamellen
DE10134056B8 (de) * 2001-07-13 2014-05-28 Vacuumschmelze Gmbh & Co. Kg Verfahren zur Herstellung von nanokristallinen Magnetkernen sowie Vorrichtung zur Durchführung des Verfahrens
EP1288976A1 (fr) * 2001-08-30 2003-03-05 Eldor Corporation S.p.A. Noyau ferromagnétique, en particulier pour transformateurs ou similaires, et son procédé de fabrication
DE10161488B4 (de) * 2001-12-14 2007-10-18 Roos & Kübler GmbH & Co. KG Verfahren und Vorrichtung zur Herstellung von Blechpaketen
DE10200775C1 (de) 2002-01-10 2003-08-14 Karl Bausch Gmbh & Co Kg Dr Verfahren zum Fertigen von aus Blechlamellen bestehenden Paketen für Magnetkerne
JP3975941B2 (ja) * 2003-02-21 2007-09-12 株式会社ジェイテクト 電磁駆動装置
DE102005034486A1 (de) * 2005-07-20 2007-02-01 Vacuumschmelze Gmbh & Co. Kg Verfahren zur Herstellung eines weichmagnetischen Kerns für Generatoren sowie Generator mit einem derartigen Kern
EP1918407B1 (fr) * 2006-10-30 2008-12-24 Vacuumschmelze GmbH & Co. KG Alliage légèrement magnétique à base de fer et de cobalt ainsi que son procédé de fabrication
US8012270B2 (en) * 2007-07-27 2011-09-06 Vacuumschmelze Gmbh & Co. Kg Soft magnetic iron/cobalt/chromium-based alloy and process for manufacturing it
US9057115B2 (en) * 2007-07-27 2015-06-16 Vacuumschmelze Gmbh & Co. Kg Soft magnetic iron-cobalt-based alloy and process for manufacturing it
JPWO2010109515A1 (ja) * 2009-03-23 2012-09-20 株式会社ハーモニック・ドライブ・システムズ 分割コア式のモータステータ
DE102009051271A1 (de) * 2009-10-29 2011-05-19 Eaton Industries Gmbh Montagehilfe zum Stanzpaketieren
CN101707136B (zh) * 2009-11-09 2011-12-21 常山科升电力设备有限公司 电抗器铁芯饼制作方法
US8209850B2 (en) * 2010-03-25 2012-07-03 Tempel Steel Company Method for manufacturing pencil cores
DE102012203542B4 (de) 2012-03-07 2016-06-23 Zf Friedrichshafen Ag Verstellbares Dämpfventil
DE102014011474A1 (de) * 2014-07-30 2016-02-04 Kienle + Spiess Gmbh Lamellenpaket sowie Verfahren zu dessen Herstellung
CN107369533A (zh) * 2016-05-13 2017-11-21 上海置信电气非晶有限公司 一种用于提高硅钢叠铁芯填充系数的铁芯结构
CN106024323A (zh) * 2016-06-29 2016-10-12 无锡康柏斯机械科技有限公司 一种电动汽车专用配电变压器
DE102017223839A1 (de) * 2017-12-28 2019-07-04 Siemens Aktiengesellschaft Magnetkern mit Rückschlussschenkel
DE102019203898A1 (de) * 2018-04-04 2019-10-10 Zf Friedrichshafen Ag Verstellbare Dämpfventileinrichtung
DE102020105732A1 (de) * 2020-03-04 2021-09-09 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zur Kennzeichnung eines Bauteils durch Aufbringen einer auslesbaren Identifizierungsinformation

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242747B (de) * 1964-01-23 1967-06-22 Licentia Gmbh Gestufter lamellierter Eisenkern
CH484501A (de) * 1967-12-29 1970-01-15 Leuenberger H Verfahren zur Herstellung eines Blechpaketes
DE1948771B2 (de) * 1969-09-26 1972-02-10 Pschenitschnyj, Gennadij I, Tsche tscheljuk, Jacow S , Grjasew, Iwan I, Saporoschje (Sowjetunion) Vorrichtung fuer das schichten pressen und anbringen der spannbandagen bei lamellierten eisenkernen von leistungs transformatoren
DE2530309C3 (de) * 1975-07-08 1979-01-25 Waldemar Von 5340 Bad Honnef Lewin Vorrichtung zur Durchführung eines programmgesteuerten Herstellungsverfahrens von Schichtkernen für Transformatoren
CH598682A5 (fr) * 1976-06-16 1978-05-12 Bbc Brown Boveri & Cie
DE2815359A1 (de) * 1978-04-10 1979-10-18 Licentia Gmbh Lamellenpaket, das aus mehreren enggeschichteten blechen besteht
DE3135684A1 (de) * 1981-09-09 1983-03-24 E. Blum GmbH & Co, 7143 Vaihingen Einteiliges kernblech mit mindestens einem fenster fuer transformatoren, drosselspulen, konstanthalter oder dergleichen, sowie verfahren und werkzeug zu seiner herstellung
DE3227681A1 (de) * 1982-07-24 1984-02-02 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum herstellen eines lamellenpaketes fuer anker elektrischer maschinen
DE8208150U1 (de) * 1982-03-23 1983-09-01 Robert Bosch Gmbh, 7000 Stuttgart Elektrische wicklung mit einem eisenkern aus geschichteten blechlamellen
JPS5914622A (ja) * 1982-07-16 1984-01-25 Fuji Electric Co Ltd 電気機器用積層鉄心
DE3366094D1 (en) * 1983-08-12 1986-10-16 Essa Maschf Sa Method of and device for manufacturing packets made of sheet plates for magnetic cores of electric machines
JPS60226107A (ja) * 1984-04-25 1985-11-11 Japan Servo Co Ltd 電機の積層鉄芯
IT1198971B (it) * 1984-11-30 1988-12-21 Elena In Legnaioli Giuli Impianto per il montaggio di nuclei magnetici per trasformatori elettrici ed altro
DE3500530A1 (de) 1985-01-09 1986-07-10 Binder Magnete GmbH, 7730 Villingen-Schwenningen Vorrichtung zur elektromagnetischen steuerung von hubventilen
DE3535573A1 (de) * 1985-10-03 1987-04-09 Heliowatt Werke Verfahren zur herstellung lamellierter kerne aus gestanzten blechen
GB2206453B (en) * 1987-06-22 1992-01-02 Linton & Hirst Ltd Pack of laminations and forming projections and depressions
US5075150A (en) * 1987-06-22 1991-12-24 Linton And Hirst Pack of laminations with projections and depressions in torsionally flexible contact
US4897916A (en) * 1988-08-29 1990-02-06 Coils, Inc. Method for making a tranformer core assembly
GB2226459B (en) * 1988-12-23 1993-10-20 Linton & Hirst Ltd Packs of laminations and method and apparatus for forming them
ITGE940022A1 (it) * 1994-03-08 1995-09-08 Tranceria Ligure S R L Metodo rapido,economico e senza sfrido di preparazione di nuclei di trasformatori.
JP3165000B2 (ja) * 1995-04-21 2001-05-14 株式会社日立製作所 内燃機関用点火装置
DE29514508U1 (de) 1995-09-09 1995-11-02 Vacuumschmelze Gmbh, 63450 Hanau Blechpaket für Magnetkerne zum Einsatz in induktiven Bauelementen mit einer Längsöffnung
JPH09213543A (ja) * 1996-01-29 1997-08-15 Aisan Ind Co Ltd 内燃機関用点火コイル

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9916092A1 *

Also Published As

Publication number Publication date
HUP0003508A3 (en) 2001-06-28
DE19741364A1 (de) 1999-04-22
DE59814052D1 (de) 2007-08-16
DE19741364C2 (de) 2000-05-25
EP1016105B1 (fr) 2007-07-04
KR20010024147A (ko) 2001-03-26
HUP0003508A2 (hu) 2001-02-28
CA2303898C (fr) 2003-07-08
CA2303898A1 (fr) 1999-04-01
KR100367941B1 (ko) 2003-01-14
WO1999016092A1 (fr) 1999-04-01
JP2001517867A (ja) 2001-10-09
US6588093B1 (en) 2003-07-08

Similar Documents

Publication Publication Date Title
DE19741364C2 (de) Verfahren und Vorrichtung zur Herstellung von aus Blechlamellen bestehenden Paketen für Magnetkerne
EP0762444B1 (fr) Paquet de tôles pour noyaux magnétiques dans des composants inductifs à ouverture longitudinale
EP0100871B1 (fr) Procédé de production d'un paquet de tôle, notamment pour l'induit de machines et appareils électriques
DE3018552C2 (fr)
EP0133858A1 (fr) Procédé et dispositif pour fabriquer des paquets composés de lames de tôle pour des noyaux magnétiques de machines électriques
EP3503134B1 (fr) Dispositif de retenue un noyau compact magnétique doux de transformateur et transformateur
DE4201448A1 (de) Tauchanker-magnetanordnung
EP0024319B1 (fr) Procédé de fabrication de tôles de noyau en E et de tôles de culasse en I d'une bobine d'induction ou d'un transformateur, en particulier pour des lampes à décharge gazeuse
WO2018215434A1 (fr) Bande d'espacement, développement de transformateur et transformateur ainsi que procédé servant à fabriquer une bande d'espacement
EP2320441A1 (fr) Aide au montage pour paquets de tôles de découpe
AT1045U1 (de) Spulenkörper und verfahren zu dessen herstellung für einen transformator
DE102015208870A1 (de) Verfahren zur Herstellung eines Blechpakets
EP3741032B1 (fr) Procédé d'assemblage d'éléments de tôle à des paquets de tôle
DE1929566A1 (de) Transformatorkern und Verfahren zu seiner Herstellung
EP3738133B1 (fr) Noyau pour un transformateur
DE19645098C2 (de) Drossel und Verfahren zu deren Herstellung
EP2780918A1 (fr) Composant inductif
DE2652171A1 (de) Vorschaltgeraet u.dgl. mit e- und i-foermigen kernblechen
DE102004012436B4 (de) Kernblech für induktives Bauelement
WO2005091477A1 (fr) Paquet de toles statoriques pour un train a sustentation magnetique
EP0580131A2 (fr) Procédé de fabrication d'une réactance ou d'un transformateur avec des tôles de noyau en forme de E constituées de deux tôles en forme de U
CH679961A5 (fr)
DE102008004555B4 (de) Kernblechsatz für induktive Bauelemente
DE2946980A1 (de) Verfahren und blechzuschnitte zum herstellen von elektromagnetischen kernen aus m-schnitt-blechen
DE7838947U1 (de) Folgewerkzeug mit einer trennstation zur herstellung von aus einem blechstreifen abzutrennenden kernblechen mit mindestens einem fenster, z.b. fuer transformatoren, drosselspulen, konstanthalter o.dgl.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000317

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VACUUMSCHMELZE GMBH

17Q First examination report despatched

Effective date: 20050502

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59814052

Country of ref document: DE

Date of ref document: 20070816

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070803

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: R. A. EGLI & CO. PATENTANWAELTE

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080407

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20100923

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101027

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20110926

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20110923

Year of fee payment: 14

Ref country code: FR

Payment date: 20111005

Year of fee payment: 14

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120914

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130531

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59814052

Country of ref document: DE

Effective date: 20130403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120930

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130403

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120930

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121001

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120914