EP1959459A2 - Procédé de fabrication d'un noyau toroïdal - Google Patents

Procédé de fabrication d'un noyau toroïdal Download PDF

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Publication number
EP1959459A2
EP1959459A2 EP08010495A EP08010495A EP1959459A2 EP 1959459 A2 EP1959459 A2 EP 1959459A2 EP 08010495 A EP08010495 A EP 08010495A EP 08010495 A EP08010495 A EP 08010495A EP 1959459 A2 EP1959459 A2 EP 1959459A2
Authority
EP
European Patent Office
Prior art keywords
core
conductive material
width
toroidal
magnetically conductive
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
EP08010495A
Other languages
German (de)
English (en)
Other versions
EP1959459B1 (fr
EP1959459A3 (fr
Inventor
Volker Werner Hanser
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE102004048793A external-priority patent/DE102004048793B3/de
Application filed by Individual filed Critical Individual
Publication of EP1959459A2 publication Critical patent/EP1959459A2/fr
Publication of EP1959459A3 publication Critical patent/EP1959459A3/fr
Application granted granted Critical
Publication of EP1959459B1 publication Critical patent/EP1959459B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16—Toroidal transformers
    • 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
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • 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
    • 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
    • H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
    • 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
    • H01F41/09—Winding machines having two or more work holders or formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12—Two-phase, three-phase or polyphase transformers
    • 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 has for its object to build a multi-stage closed ring core high strength, in particular for a distribution transformer, which is electrically insulated to the outside, and to realize a rational production process.
  • the high strength of the ring cores with a weight of 100 kg to over 2000 kg, is necessary so that the thin transformer sheets remain dimensionally stable, on the one hand during further processing, and later in continuous operation.
  • the electrical insulation is required so that the transformer winding has a sufficient dielectric strength with respect to the core.
  • the achievement of this task is that a thin magnetically conductive Material is wound into a multi-stage closed toroidal transformer core, between the magnetically conductive material is an adhesive which mutually isolated (to avoid eddy currents) and solidifies the toroidal core and the electrical insulation against the low voltage winding with spacers or spacers made of electrically non-conductive material is obtained.
  • the toroidal transformer core can be completely cast with an electrically non-conductive casting resin high strength.
  • a further embodiment provides that the electrical insulation (core for undervoltage winding) is realized by at least three spacer rings or in each case three spacers per turn, which are fixedly mounted in the steps of the toroidal core. Subsequently, the toroidal core is coated with a varnish for insulation and protection against corrosion.
  • the toroidal core winding method is a support frame for holding the devices, for each width of the magnetically conductive material at least one supply roll device, a drive and braking device, with a guide device, a cutting device and a Klebsprühervorraum, for each width of the magnetically conductive material at least one take-up device with a drive and brake device, as well as a common guide rail needed.
  • the winding process begins at a narrow, too wide and too narrow again.
  • the winding height is monitored by a remote measuring device.
  • the winding process for the corresponding width is terminated, the magnetically conductive material is severed and supplied to the guide rail of the next width.
  • the magnetically conductive material is sprayed with adhesive. In this way, a closed stage ring core is formed, which has adhesive for insulating the magnetically conductive material and has sufficient strength for further processing.
  • For each width of the magnetically conductive material with the exception of the widest material, there must be two supply rolls, including all devices, and two take-up devices, including all devices, corresponding to the number of stages of the toroidal core. In the steady state, all stock roll units and all take-up units are in operation simultaneously.
  • the advantage of the toroidal core technology is that it allows toroidal distribution transformers to be realized in the highest power range, which are extremely low-loss and only about 50% of the operating costs of conventional distribution transformers in casting resin technology.
  • the toroidal distribution transformer refinances in a few years and, in addition, a significant amount of primary energy, for the conservation of resources and the environment, can be saved.
  • a transformer in particular a spiral undervoltage winding high cross-section and their manufacture, a multi-stage closed toroidal transformer high stability, of magnetically conductive and mutually insulated material, electrically insulated for undervoltage winding, and its manufacturing process, preferably a support frame with at least 3 supply roll devices, each with a braking device, with at least 2 different widths of magnetically conductive material, at least three adhesive spraying devices, and at least three winding devices with a drive system, at least three guide devices, a guide rail, and a cutting device is provided.
  • each supply roll device as well as each take-up device is equipped with a drive and brake device.
  • a transformer is provided, wherein for each width of the magnetically conductive material, with the exception of the widest material, two winding devices, each with a drive and braking device are provided.
  • a transformer wherein the magnetic material has been pretreated with an insulating layer.
  • a transformer wherein the closed toroidal transformer core is wound in multiple stages with a thin magnetically conductive material which is pre-treated with adhesive or sprayed with adhesive during the winding process.
  • a transformer is provided, wherein at least three spacer rings or three spacers per turn, are firmly mounted in the steps of the toroidal core.
  • a transformer is provided, the toroidal core being coated with a varnish for insulation and for protection against corrosion.
  • a transformer is provided wherein the toroidal transformer core is encased in a high strength cast resin.
  • a transformer wherein the magnetically conductive material has an amorphous structure.
  • FIG. 1 is a generally designated with 101 polyphase transformer having three stacked axially in the axial direction of ring cores 102.
  • adjacent ring cores 102 carry phase windings of different phases, wherein the phase windings are respectively applied to the ring cores 102 annularly enclosing coil bobbins 103.
  • bobbin 103 may be alternately arranged with primary and secondary windings next to each other or one above the other. It is also possible for primary and secondary windings to be applied together to a bobbin 103.
  • the ring cores 102 are arranged in a holding device 104 which has outer and inner guide rails 105a, 105b for forming a receiving region for the toroidal cores 102.
  • the guide rails 105a, 105b each exist of insulating material, so that the ring cores 102 and the phase windings on the bobbin 103 of the ring cores 102 are laterally outwardly insulated.
  • the holding device 104 has on its underside a bottom part 107, which likewise consists of insulating material.
  • insulating support elements 108 are provided for the lower ring core 102.
  • a plurality of spaced bearing elements 108 may be provided, or it is a continuous ring as a support element 108 is provided.
  • Spacers 109 are respectively provided between the individual ring cores 102 with which the ring cores 102 or the coil cores 103 respectively assigned to the toroidal cores 102 are fixed relative to one another in their position.
  • Insulating support elements 108 are again provided above the upper ring core 102, on which a cover part 110 rests and the toroidal cores 102 are also insulated on the upper side towards the outside.
  • the Indian FIG. 1 shown polyphase transformer 101 is formed as a three-phase transformer.
  • the connection points of the individual phase windings of the toroidal cores 102 or of the spool bodies 103, which are not illustrated in more detail, are each offset by 120 ° relative to one another.
  • the phase windings are thereby mechanically offset from one another by an angle which corresponds to the electrical phase shift or the electrical phase angle between the voltage signals of these phase windings.
  • the ring cores 102 are formed with their respective bobbins 103 like a module.
  • the affected toroidal core can be exchanged for a replacement module or the defective module is electrically disconnected and a replacement module is provisionally connected to the polyphase transformer 101.
  • a replacement module is provisionally connected to the polyphase transformer 101.
  • FIGS. 2 and 3 show a closed ring core 301, which is designed with five stages 302, 303, 304, 305 and 306.
  • the steps are preferred so that an approximately round cross-section is formed.
  • the steps consist of thin sheets, which are preferably sprayed with adhesive, for insulation and strength. So that a circular cross-section is formed, an insulation towards the outside and the high strength, the toroidal core is encapsulated with a casting resin 307. Another advantage of this casting resin is that no sharp edges can damage the windings of the transformer.
  • Sheet width of supply roll 402 is the same.
  • B1 100 mm Sheet height 0.23 mm
  • B2 100 mm + x (Magnetic steel sheet)
  • B3 100 mm + x1
  • B4 100 mm + x
  • B5 100 mm
  • the first sheet width of 100 mm is fed via the guide device 403 of the winding device 406 and fixed.
  • the winding process begins and at the same time the sheet is sprayed with the adhesive device 404 with adhesive.
  • the drive and braking device By means of the drive and braking device, a uniform train is achieved on the sheet to be wound.
  • the wound sheet height is compared with the target value and stopped the winding when reaching the default. Subsequently, the sheet is cut and fixed by the cutting device 405.
  • the take-up device 406 of the second sheet width (B2) is now fed.
  • the first sheet width is fed to a further take-up device.
  • five toroidal transformer cores are wound simultaneously.
EP08010495A 2004-10-07 2005-10-06 Procédé de fabrication d'un noyau toroïdal Not-in-force EP1959459B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004048793A DE102004048793B3 (de) 2004-10-07 2004-10-07 Ringkern-Transformator
DE102005041975 2005-09-03
EP05799949A EP1797573B1 (fr) 2004-10-07 2005-10-06 Transformateur a noyau toroidal

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP05799949A Division EP1797573B1 (fr) 2004-10-07 2005-10-06 Transformateur a noyau toroidal
EP05799949.2 Division 2005-10-06

Publications (3)

Publication Number Publication Date
EP1959459A2 true EP1959459A2 (fr) 2008-08-20
EP1959459A3 EP1959459A3 (fr) 2008-09-03
EP1959459B1 EP1959459B1 (fr) 2012-04-18

Family

ID=35509325

Family Applications (3)

Application Number Title Priority Date Filing Date
EP05799949A Not-in-force EP1797573B1 (fr) 2004-10-07 2005-10-06 Transformateur a noyau toroidal
EP08010495A Not-in-force EP1959459B1 (fr) 2004-10-07 2005-10-06 Procédé de fabrication d'un noyau toroïdal
EP08010496A Not-in-force EP1959460B1 (fr) 2004-10-07 2005-10-06 Procédé de fabrication d'un transformateur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05799949A Not-in-force EP1797573B1 (fr) 2004-10-07 2005-10-06 Transformateur a noyau toroidal

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08010496A Not-in-force EP1959460B1 (fr) 2004-10-07 2005-10-06 Procédé de fabrication d'un transformateur

Country Status (24)

Country Link
US (1) US20080007378A1 (fr)
EP (3) EP1797573B1 (fr)
JP (1) JP2008516433A (fr)
KR (1) KR20070102987A (fr)
CN (1) CN101036204A (fr)
AP (1) AP2125A (fr)
AT (3) ATE424030T1 (fr)
AU (1) AU2005293857B2 (fr)
BR (1) BRPI0516543A (fr)
CA (1) CA2583262A1 (fr)
CY (1) CY1109446T1 (fr)
DE (1) DE502005006711D1 (fr)
DK (1) DK1797573T3 (fr)
EA (3) EA012992B1 (fr)
EG (1) EG24744A (fr)
ES (1) ES2321638T3 (fr)
MA (1) MA29002B1 (fr)
MX (1) MX2007004125A (fr)
PL (1) PL1797573T3 (fr)
PT (1) PT1797573E (fr)
SI (1) SI1797573T1 (fr)
TN (1) TNSN07129A1 (fr)
WO (1) WO2006040074A1 (fr)
ZA (1) ZA200702353B (fr)

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US20080061915A1 (en) * 2006-09-11 2008-03-13 Rodney Godbey Dry-type transformer with shielded core/coil assembly and method of manufacturing the same
FR2907591B1 (fr) 2006-10-20 2009-01-16 Centre Nat Rech Scient Procede d'alimentation d'un coupleur magnetique et dispositif d'alimentation d'un dipole electrique.
US7834736B1 (en) 2009-07-31 2010-11-16 Abb Technology Ag Dry type pole-mounted transformer
US9257412B2 (en) * 2012-09-12 2016-02-09 Taiwan Semiconductor Manufacturing Company, Ltd. Stress reduction apparatus
CN103050273B (zh) * 2012-12-27 2015-12-09 吴江变压器有限公司 三相椭圆形线圈用的压具
CN106029112B (zh) * 2014-02-19 2020-07-24 利乐拉瓦尔集团及财务有限公司 灭菌装置和电子束发射器
CN103971921A (zh) * 2014-05-19 2014-08-06 苏州上电科电气设备有限公司 一种变压器绕线机夹具
RU168099U1 (ru) * 2016-06-16 2017-01-18 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") Трансформатор преобразовательный трехфазный многообмоточный с замкнутой системой воздушного охлаждения
MX2019015008A (es) 2017-06-13 2020-02-26 Radyne Corp Ensamble de autotransformador portatil toroidal.
WO2019232373A1 (fr) 2018-05-31 2019-12-05 Hubbell Incorporated Transformateur toroïdal triphasé
DE102018118551A1 (de) * 2018-07-31 2020-02-06 Tdk Electronics Ag Verfahren zur Herstellung eines induktiven Bauelements und induktives Bauelement

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE1016377B (de) 1954-12-27 1957-09-26 Licentia Gmbh Kreisfoermiger Bandringkern mit abgestuftem Kernquerschnitt
US3465273A (en) 1967-12-14 1969-09-02 Hunterdon Transformer Co Toroidal inductor
WO1995012887A1 (fr) 1993-11-03 1995-05-11 Ciba Geigy Ag Procedes et dispositif pour le bobinage d'un noyau toroïdal ferme pour des transformateurs et des bobines de self de puissance elevee

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US2452733A (en) * 1946-10-08 1948-11-02 Western Electric Co Winding machine
US2832012A (en) * 1954-02-11 1958-04-22 Honeywell Regulator Co Magnetic amplifier structure
US3043000A (en) * 1958-04-24 1962-07-10 Mc Graw Edison Co Method of forming a conductive coil on a closed magnetic core
US3089074A (en) * 1960-03-18 1963-05-07 Superior Electric Co Adjustable voltage rectifier
FR1333285A (fr) * 1962-09-04 1963-07-26 A R L Etablissements Augier So Nouveau mode de fabrication des noyaux magnétiques et enroulements de transformateurs
US3274526A (en) * 1963-07-17 1966-09-20 High Voltage Engineering Corp Insulating core transformers
US3461952A (en) * 1967-10-09 1969-08-19 Robert M Decker Apparatus and method for dissipating heat from a heat source
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US4542362A (en) * 1982-02-19 1985-09-17 Societe Nouvelle Transfix Electrical transformers with improved insulation and coolant guiding
FR2561033B1 (fr) * 1984-03-06 1988-11-10 Beisser Jean Claude Transformateur et son procede de fabrication
US4765861A (en) * 1985-02-06 1988-08-23 Kuhlman Corporation Apparatus and method for winding a toroidal magnetic core onto a bobbin for a toroidal transformer
US4771957A (en) * 1985-02-06 1988-09-20 Kuhlman Corporation Apparatus and method for fabricating a low voltage winding for a toroidal transformer
US4592133A (en) * 1985-03-28 1986-06-03 Westinghouse Electric Corp. Method of constructing an electrical transformer
NL9002753A (nl) * 1990-12-14 1992-07-01 Philips Nv Inductieve inrichting met een ringvormige kern.
DE69110273T2 (de) * 1991-04-26 1996-01-25 Ibm Koaxiale schwingungsdämpfende Anordnung eines Ringkerntransformators.
EP0557549B1 (fr) * 1992-02-26 1995-08-30 HANSER, Volker Transformateur à noyau annulaire
JP2571032Y2 (ja) * 1992-08-24 1998-05-13 株式会社前川製作所 三相平衡摺動変圧器
AU7854894A (en) * 1993-10-20 1995-05-08 Volker Hanser Power transformer
TW445468B (en) * 2000-06-08 2001-07-11 Darfon Electronics Corp Transformer bobbin

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016377B (de) 1954-12-27 1957-09-26 Licentia Gmbh Kreisfoermiger Bandringkern mit abgestuftem Kernquerschnitt
US3465273A (en) 1967-12-14 1969-09-02 Hunterdon Transformer Co Toroidal inductor
WO1995012887A1 (fr) 1993-11-03 1995-05-11 Ciba Geigy Ag Procedes et dispositif pour le bobinage d'un noyau toroïdal ferme pour des transformateurs et des bobines de self de puissance elevee

Also Published As

Publication number Publication date
MX2007004125A (es) 2007-08-02
EP1959459B1 (fr) 2012-04-18
ES2321638T3 (es) 2009-06-09
CN101036204A (zh) 2007-09-12
EP1797573B1 (fr) 2009-02-25
MA29002B1 (fr) 2007-11-01
DE502005006711D1 (de) 2009-04-09
EA012992B1 (ru) 2010-02-26
EP1959460A3 (fr) 2008-10-01
US20080007378A1 (en) 2008-01-10
ATE554488T1 (de) 2012-05-15
EG24744A (en) 2010-07-18
EA012993B1 (ru) 2010-02-26
BRPI0516543A (pt) 2008-09-09
PT1797573E (pt) 2009-05-21
TNSN07129A1 (en) 2008-11-21
AU2005293857A1 (en) 2006-04-20
ATE424030T1 (de) 2009-03-15
SI1797573T1 (sl) 2009-08-31
EP1797573A1 (fr) 2007-06-20
AU2005293857B2 (en) 2009-10-01
WO2006040074A1 (fr) 2006-04-20
EA012485B1 (ru) 2009-10-30
ZA200702353B (en) 2008-04-30
ATE554489T1 (de) 2012-05-15
AP2125A (en) 2010-05-17
KR20070102987A (ko) 2007-10-22
JP2008516433A (ja) 2008-05-15
EP1959460B1 (fr) 2012-04-18
EP1959459A3 (fr) 2008-09-03
EA200900170A1 (ru) 2009-06-30
EA200700561A1 (ru) 2007-10-26
AP2007003983A0 (en) 2007-06-30
CY1109446T1 (el) 2014-08-13
EP1959460A2 (fr) 2008-08-20
PL1797573T3 (pl) 2009-07-31
CA2583262A1 (fr) 2006-04-20
EA200900169A1 (ru) 2009-06-30
DK1797573T3 (da) 2009-06-02

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