EP1735800A1 - Enroulement d'un transformateur ou d'une bobine et son procede de production - Google Patents

Enroulement d'un transformateur ou d'une bobine et son procede de production

Info

Publication number
EP1735800A1
EP1735800A1 EP05715902A EP05715902A EP1735800A1 EP 1735800 A1 EP1735800 A1 EP 1735800A1 EP 05715902 A EP05715902 A EP 05715902A EP 05715902 A EP05715902 A EP 05715902A EP 1735800 A1 EP1735800 A1 EP 1735800A1
Authority
EP
European Patent Office
Prior art keywords
winding
conductor
insulating material
material layer
turns
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.)
Withdrawn
Application number
EP05715902A
Other languages
German (de)
English (en)
Inventor
Benjamin Weber
Christian GRÜTTNER
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 Technology AG
Original Assignee
ABB Technology AG
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 Technology AG filed Critical ABB Technology AG
Publication of EP1735800A1 publication Critical patent/EP1735800A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01F27/323—Insulation between winding turns, between winding layers
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/327—Encapsulating or impregnating
    • H01F2027/328—Dry-type transformer with encapsulated foil winding, e.g. windings coaxially arranged on core legs with spacers for cooling and with three phases
    • 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
    • H01F27/2823—Wires
    • 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
    • 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
    • H01F41/122—Insulating between turns or between winding layers

Definitions

  • the invention relates to a winding for a transformer or a coil according to the preamble of claim 1.
  • the invention further relates to a method for producing a winding according to the invention.
  • Windings for transformers or coils are usually made from a ribbon-shaped electrical conductor. Such a conductor is wound into turns around a winding axis during the production of the winding. In order to ensure electrical insulation of the individual turns from one another, an insulating material is interposed between radially adjacent turns.
  • the conductor and a separate strip-shaped insulating material are each upgraded to one unwinding device of a winding machine, which means that corresponding setup times are required.
  • the insulation material must therefore be significantly wider, for example 20 mm, than the conductor.
  • a winding for a transformer or a coil with the features mentioned in claim 1. Accordingly, a winding according to the invention is characterized in that a band-shaped electrical conductor, which is wound to form windings around a winding axis, is permanently connected to at least one insulating material layer on at least one broad side.
  • the layer of insulating material which is already connected to the conductor during the manufacture of the winding, ensures the electrical insulation of radially adjacent turns from one another. This prevents errors caused by the conductor slipping relative to the insulating material layer during winding. There are also no other technical measures necessary to avoid slipping. The manufacture of a winding is thus considerably simplified.
  • radially adjacent turns are wound to avoid axial misalignment with one another, that is, all turns lie completely one above the other. This further simplifies the manufacture of the winding and reduces the extent of the winding in the axial direction.
  • connection of the conductor to the insulating material layer on the broad side is advantageously carried out over the entire surface.
  • a full-area connection reduces the risk of tearing or partial detachment of the insulating material layer from the conductor, which exists in particular during the winding process.
  • a partial connection of the conductor to the insulating material layer by means of adhesive points or by strip-shaped gluing is also conceivable.
  • the conductor is permanently connected to an insulating material layer on both broad sides. Two radially adjacent turns of the conductor are then separated in the winding by two layers of insulating material lying one above the other. If an insulating material layer is defective, for example has a hole or a crack, there is still another insulating material layer which ensures the insulation of the turns.
  • the turns are advantageously designed such that the conductor with its transverse direction, which is located in its broad side, and perpendicular to its longitudinal direction stands, is arranged parallel to the winding axis. This gives the winding a particularly compact and space-saving design.
  • the width of the insulating material layer corresponds approximately to the width of the conductor. This means that the insulating material layer is advantageously only as wide as the conductor itself. This results in a saving in insulating material.
  • the object is also achieved according to the invention by a method for producing a winding for a transformer or a coil with the features mentioned in claim 13.
  • a band-shaped winding material is wound around a winding axis while avoiding axial misalignment.
  • the winding material has a band-shaped electrical conductor which is permanently connected to at least one insulating material layer on at least one broad side.
  • the winding material is produced before the windings are wound, in that the conductor is permanently connected to the insulating material layer on one broad side. It is particularly advantageous if the conductor is connected to the insulation material layer over the entire surface. This minimizes the risk that the insulating material layer will partially detach from the conductor during winding.
  • the winding material is produced by connecting the conductor on both broad sides, each with an insulating material layer. When winding the turns, two layers of insulating material lying one above the other then lie between two radially adjacent turns of the conductor. Such a winding tape ensures adequate insulation of radially adjacent turns from one another, even if one of the layers of insulating material is partially defective.
  • the at least one insulating material layer of the winding material is additionally non-detachably connected to the radially adjacent turn.
  • the insulating material layer with the broad side, which faces away from the conductor, is connected to the broad side of the winding material of the respective radially adjacent turn.
  • winding material has only one insulating material layer, this insulating material layer of one turn is connected to the conductor of the adjacent turn. If the winding material has an insulating material layer on both broad sides of the conductor, an insulating material layer of one turn is connected to an insulating material layer of the adjacent turn. Such an additional connection of the turns to one another advantageously increases the mechanical strength of the winding.
  • the additional connection is carried out, for example, as an adhesive bond, in that an additional adhesive layer is applied to the insulating material layer before or during the winding process.
  • an adhesive is already contained in the insulating material layer.
  • the insulating material layer can be in a solid but uncured state during the production of the winding material. After the windings have been wound, the bonding then takes place in a separate curing process, which is carried out, for example, by heating the winding. Other thermal or chemical processes which allow the insulation material layer to be connected to the conductor or two insulation material layers to be connected to one another can also be used.
  • FIG. 1 shows a cross section through a winding material with an insulating material layer
  • FIG. 2 shows a cross section through a winding material with two layers of insulating material
  • FIG. 3 shows a longitudinal section through a winding
  • Fig. 4 is a plan view of an end face of a winding.
  • the winding material 11 has a band-shaped electrical conductor 10 and an insulating material layer 12 which is permanently connected to the conductor 10 on a first broad side 101 thereof.
  • the first broad side 101 of the conductor 10 runs perpendicular to the image plane.
  • a first narrow side 103, a second narrow side 104 and a second broad side 102 of the conductor are also visible in the illustration shown.
  • transverse direction 17 which is perpendicular to the longitudinal direction of the conductor 10.
  • the transverse direction 17 is the line of intersection from the broad side 101 of the conductor 10 and the image plane.
  • the ratio of the length of a broad side to the length of a narrow side is approximately 20: 1 up to 1,000: 1, preferably 500: 1.
  • other ratios of the lengths of broad side and narrow side are also conceivable and within the scope of the inventive concept.
  • the conductor 10 consists of a conductive material, for example copper, aluminum or an alloy with at least one of these materials. Epoxy resin or polyester imide, among others, are suitable as the material for the insulating material layer 12.
  • the insulating material layer 12 is applied to the conductor 10, for example, by spray coating or powder coating. It is also conceivable that the insulating material layer 12 is connected to the conductor 10 with the interposition of an adhesive layer, not shown here.
  • the width of the conductor 10 is approximately 300 mm to 1,400 mm, preferably 1,000. mm.
  • the thickness of the conductor 10 is approximately 0.5 mm to 3 mm. This results in a typical conductor cross section of up to 4,200 mm2. Other widths and / or thicknesses of the conductor 10 are also conceivable.
  • a continuous insulating material layer 2 is provided, which completely covers the broad side 101 of the conductor 10.
  • a continuous insulating material layer 12 a plurality of insulating material layers lying next to one another are provided, each of which covers a partial region of the broad side 101.
  • FIG. 2 shows a cross section perpendicular to the longitudinal direction through a second winding material 13. This representation is also not to scale.
  • the reference numerals from FIG. 1 are adopted insofar as they relate to features identical to FIG. 1.
  • the second winding material 13 also has the conductor 10, which on its two broad sides 101, 102 is permanently connected to an insulating material layer 12, 14.
  • FIG. 3 shows a longitudinal section through a winding along a winding axis 16. This representation is also not to scale.
  • the winding has a plurality of turns 20 made of a winding material, which are wound around a hollow cylinder 18.
  • the winding material has a band-shaped electrical conductor and an insulating material layer or two insulating material layers, the conductor and the insulating material layers not being shown in this illustration.
  • the winding axis 16 coincides with the longitudinal axis of the hollow cylinder 18.
  • a ferromagnetic core (not shown here) can be inserted into the hollow cylinder 18.
  • a further transverse direction 19 of the conductor of the winding material which is defined as in FIG. 1 and which is shown in one of the windings 20, runs parallel to the winding axis 16.
  • the windings 20 are superimposed on one another, avoiding an axial offset along the winding axis 16, whereby radially adjacent turns almost completely overlap.
  • Such a winding can be used, for example, in a power transformer for energy transmission with a nominal power of approximately 50 kVA to 10 MVA.
  • the winding can also be used in a transformer of higher or lower power.
  • use as undervoltage winding with a nominal voltage of approximately 1 kV to 30 kV or higher is provided.
  • use at a lower voltage of approximately 0.4 kV to 1 kV is also conceivable.
  • FIG. 4 shows a top view of an end face 30 of a winding, which is part of a coil. This representation is also not to scale.
  • the windings are wound around a ferromagnetic core 22 ′, which in this example has a square cross section.
  • the winding axis of the turns coincides with the central axis 23 of the core 22.
  • the windings are firmly connected to the core 22 in the illustration shown.
  • the core 22 can be displaced along its central axis 23.
  • the inductance of the coil can be changed by continuously or stepwise inserting the core 22 into the turns, or by moving the core 22 out of the turns.
  • connection element is attached to a radially inner conductor end 26 of the winding. Furthermore, a second connection element, also not shown, is attached to a radially outer conductor end 28.
  • the coil can be connected to a circuit by means of said connection elements.
  • Cover insulation on the end face 30 of the winding ensures the insulation of the narrow sides of the conductor (not shown here) located there.
  • Cover insulation on the outer surface 24 of the winding insulates the radially outer turn from the outside.
  • Insulation material layer second winding material second insulation material layer

Abstract

L'invention concerne un enroulement d'un transformateur ou d'une bobine. Cet enroulement est constitué d'un matériau (11) comprenant un conducteur électrique (10) en forme de bande attaché de manière amovible et au moins sur un côté plat (101) à au moins une couche de matière isolante (12). On enroule le matériau (11) de l'enroulement autour d'un axe d'enroulement (16) en évitant tout décalage axial pour former les spires (20). L'invention concerne également le procédé de production de cet enroulement.
EP05715902A 2004-04-01 2005-03-10 Enroulement d'un transformateur ou d'une bobine et son procede de production Withdrawn EP1735800A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004016197A DE102004016197A1 (de) 2004-04-01 2004-04-01 Wicklung für einen Transformator oder eine Spule und Verfahren zur Herstellung
PCT/EP2005/002520 WO2005098881A1 (fr) 2004-04-01 2005-03-10 Enroulement d'un transformateur ou d'une bobine et son procede de production

Publications (1)

Publication Number Publication Date
EP1735800A1 true EP1735800A1 (fr) 2006-12-27

Family

ID=34961610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715902A Withdrawn EP1735800A1 (fr) 2004-04-01 2005-03-10 Enroulement d'un transformateur ou d'une bobine et son procede de production

Country Status (6)

Country Link
US (1) US7477126B2 (fr)
EP (1) EP1735800A1 (fr)
CN (1) CN1961390A (fr)
BR (1) BRPI0509556A (fr)
DE (1) DE102004016197A1 (fr)
WO (1) WO2005098881A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102214511A (zh) * 2010-04-08 2011-10-12 和泰科技(吴江)有限公司 变压器二次侧铜板圈制作方法及其产品
DE102010030956A1 (de) * 2010-07-05 2012-01-05 Continental Automotive Gmbh Bondbändchen mit Isolierschicht
TWI475579B (zh) * 2012-12-14 2015-03-01 Ghing Hsin Dien 線圈
JP6352791B2 (ja) * 2014-12-11 2018-07-04 Ckd株式会社 コイル用シート、コイル、及びコイルの製造方法
DE102016200461A1 (de) * 2016-01-15 2017-07-20 Siemens Aktiengesellschaft Vertikale Wicklungsanordnung
DE102016200477A1 (de) * 2016-01-15 2017-07-20 Siemens Aktiengesellschaft Wicklungsanordnung mit festen Wicklungsabschnitten
DE202018105660U1 (de) * 2018-10-02 2020-01-07 Alanod Gmbh & Co. Kg Elektroisoliertes elektrisches Leitungsband, insbesondere für Elektromotoren und Transformatoren

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DE1819904U (de) * 1959-03-20 1960-10-20 Schaltbau Gmbh Mehrlagige elektrische spule.
GB981385A (en) * 1963-01-16 1965-01-27 British Insulated Callenders Improvements in or relating to insulated electric conductors and coils wound therefrom
US3410738A (en) * 1965-01-18 1968-11-12 Westinghouse Electric Corp Method of making coils of electrical conductors
US3528852A (en) * 1965-10-27 1970-09-15 Anaconda Wire & Cable Co Dual-coated electrical conductor
DE6750037U (de) * 1968-07-30 1969-01-02 Felten & Guilleaume Ag Isolierter elektrischer bandleiter, insbesondere lackisolierter bandleiter
DE1816127B1 (de) * 1968-12-20 1970-03-12 Matsushita Electric Ind Co Ltd Selbstbindender,oberflaechenisolierter Folienleiter
US3891955A (en) * 1974-05-07 1975-06-24 Westinghouse Electric Corp Electrical inductive apparatus
DE2949739C2 (de) * 1979-12-11 1986-01-23 Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut Transformator
GB8318612D0 (en) * 1983-07-08 1983-08-10 Raychem Ltd Wire and cable
US4860446A (en) 1988-02-16 1989-08-29 Medtronic, Inc. Medical electrical lead and method of manufacture
DE4007614A1 (de) * 1989-03-10 1990-09-13 Toko Inc Induktives element
WO1991010239A1 (fr) * 1989-12-28 1991-07-11 Sumitomo Electric Industries, Ltd. Procede de fabrication d'isolant inorganique
JP2530778Y2 (ja) 1991-05-16 1997-03-26 日本ビクター株式会社 電機子用リボンコイル
DE69323194T2 (de) * 1992-05-14 1999-09-02 Usa Metals Corp Bandförmiger leiter für transformatoren
JP2000058350A (ja) * 1998-08-10 2000-02-25 Sumitomo Wiring Syst Ltd コイル及び内燃機関用点火コイル
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Title
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Also Published As

Publication number Publication date
DE102004016197A1 (de) 2005-10-20
CN1961390A (zh) 2007-05-09
WO2005098881A1 (fr) 2005-10-20
US7477126B2 (en) 2009-01-13
BRPI0509556A (pt) 2007-09-18
US20070132532A1 (en) 2007-06-14

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