WO2013020859A1 - Enroulement et procédé de fabrication d'un enroulement à canal de refroidissement - Google Patents

Enroulement et procédé de fabrication d'un enroulement à canal de refroidissement Download PDF

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Publication number
WO2013020859A1
WO2013020859A1 PCT/EP2012/064958 EP2012064958W WO2013020859A1 WO 2013020859 A1 WO2013020859 A1 WO 2013020859A1 EP 2012064958 W EP2012064958 W EP 2012064958W WO 2013020859 A1 WO2013020859 A1 WO 2013020859A1
Authority
WO
WIPO (PCT)
Prior art keywords
winding
tubes
producing
layers
cooling channel
Prior art date
Application number
PCT/EP2012/064958
Other languages
German (de)
English (en)
Inventor
Rudolf Hanov
Matthias Müller
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2013020859A1 publication Critical patent/WO2013020859A1/fr

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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
    • H01F27/322—Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid
    • 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
    • H01F27/2876—Cooling
    • 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
    • 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
    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling

Definitions

  • the invention relates to a winding according to the preamble of patent claim 8 and a method for producing a winding for an electrical component, in particular a transformer according to the preamble of patent claim 1.
  • Windings are often used as transformer coils.
  • a conductive foil of, for example, copper or aluminum is alternately wound with an insulating film or an insulated wire with an electrically conductive core on a usually circular winding body or a winding template in layers.
  • a synthetic resin such as an epoxy resin
  • the casting resin is solidified.
  • a coil thus produced is good ge ⁇ protects against environmental influences such as dust or moisture.
  • the casting resin is a relatively poor conductor of heat. In order to ensure a good heat dissipation also from the inside of the molded winding, cooling channels can serve.
  • a transformer with a winding is known in which elliptical tubes are inserted between the individual layers during the winding process of the winding at a distance from each other, which form cooling channels after casting with cast resin.
  • the present invention is based on the object of specifying a method for producing a winding provided with cooling channels, which is particularly simple and inexpensive to implement.
  • the object of the invention is a winding for an electrical construction. Specify part whose locations show the smallest possible deviation from the desired shape.
  • the invention provides a method for producing a winding in which a band or wire-shaped conductor material is wound around a longitudinal axis in a plurality of layers and between two layers parallel to the longitudinal axis extending tubes are wrapped.
  • the woundauermate ⁇ rial and the wrapped tubes are cast with a synthetic resin and cured the resin.
  • treadmill is intended that at least two adjacent parallel, forming a cooling channel, pipes prior to wrapping with ⁇ are movably connected to each other.
  • Such a cooling channel is easy to produce by connecting two or more simple tubes, for example, with ribbons together.
  • Such a cooling channel can be easily inserted between the individual layers during winding of the winding and wound up with. Due to the mutually movable pipes, this cooling channel fits snugly against the different, from inside to outside, larger winding radii. As a result, the smallest possible deviation of the winding from the desired shape is achieved.
  • multiple pipes can easily be connected together in locations with higher cooling requirements, thus providing a larger volume of coolant.
  • the cooling channels can be provided as nanowi ⁇ ckelte mat many connected pipes and each cut to the appropriate number of interconnected pipes and wrapped in the winding.
  • the cooling channels can also be prepared as pre-assembled as two, three, four or more interconnected pipes and then only have to be inserted when winding the winding between the layers.
  • the tubes are fixed relative to one another with respect to a displacement in the longitudinal direction. This ensures that the ends of the tubes have a uniform distance from the end face of the winding and can not move against each other in the longitudinal direction, which greatly simplifies the wrapping in the individual layers.
  • adjacent tubes in each case may also be fixed in relation to their radial distance. Since ⁇ is given by a uniform spacing of the tubes and thus a uniform distribution of the cooling effect, which has an advantageous effect on the heat distribution in the winding.
  • the adjacent pipes can be verbun ⁇ through we ⁇ iquess a separate connecting element to each other. A connecting element thus always connects exactly two adjacent tubes. A particularly high Fle ⁇ bility of the connection is ensured.
  • a the tubes at least partially encircling band can be especially beneficial as a connecting element used ⁇ the.
  • the band can be attached to both tubes.
  • the tubes are simultaneously fixed in the longitudinal direction against each other. This connection is particularly easy to manufacture and is particularly flexible.
  • the tubes are made of an electrically insulating, mechanically stable material.
  • Mechanically stable means, in particular, that the tubes are so stable that they do not collapse during casting due to the static pressure of the casting compound. As a result, the electrical insulation between the layers of the winding is ensured, and a compression and thus a diameter reduction of the tubes during wrapping is avoided.
  • connecting elements made of an electrically insulating material and at least partially made of a fiber-reinforced, in particular a glass fiber reinforced plastic. This configuration advantageously ensures the insulation between the layers of the winding and achieves a high mechanical stability of the connection.
  • the winding is cast with an elekt ⁇ driven insulating plastic, in particular a synthetic resin. Often an epoxy resin is used for this purpose. As a result, the winding is particularly well protected against environmental influences.
  • the pipes are surrounded with.
  • the tubes of the cooling ⁇ channels can be closed before the casting at their ends so that no synthetic resin can penetrate into the tubes, this closure is removed after potting, so that the tubes provide through holes in the insulating plastic.
  • a particularly advantageous embodiment consists in that the tubes consist of a material that is electrically and thermally compatible with the electrically insulating plastic.
  • Electrically compatible herein means in particular that the di ⁇ electrical properties, in particular the dielectric constant of insulating plastic tubes and have similar values.
  • Thermally compatible means that insbesonde ⁇ re are the thermal expansion coefficients of the materials of insulating plastic and tubes so close together that temperature changes do not result in cracks between these materials.
  • a winding for an electrical component in particular a Transforma ⁇ gate, at least one wound in several layers about a longitudinal axis band or wire-shaped conductor material with we ⁇ least one parallel to Longitudinal axis between two of these layers extending cooling channel.
  • the at least one cooling channel has a plurality of parallel running, adjacent tubes, which conform to the respective radia ⁇ len course of the successive layers.
  • FIG. 2 shows a detail enlargement from FIG. 1 with winding layers shown visibly
  • FIG. 3 shows a cooling channel with four interconnected
  • FIG. 4 shows a cooling channel with two interconnected
  • FIG. 1 can be seen a winding 1 prepared by the inventive method already in with a casting resin ⁇ 20-cast.
  • the winding 1 here forms a circular hollow cylinder, alternatively, an oval shape would be possible, at the end faces of the openings of wrapped at the ends of the cooling channels 10, 11 are visible.
  • the cooling channels 10, 11 run parallel to a
  • FIG. 1 shows the detail A of the figure 1 in an enlarged view. Here, individual layers 32 of the winding 1 are shown visibly, although they would actually be covered by the casting resin 20.
  • the layers 32 each consist of a strip-shaped conductive material 30, such as a foil of an electrically conductive material such as copper or aluminum, and a band-shaped, electrically insulating insulation 31, instead of the band-shaped conductor material 30 could ⁇ te also a wire-shaped, with an insulating layer used, conductive material can be used.
  • a reinforcing layer not shown here can be wound as a further layer of the sheet with a ⁇ about from a fiber-reinforced plastic.
  • the first of the layers 32 is aufk- aufk- on a winding core, not shown here, usually a circular hollow cylinder adoptedwi-. Thereupon further layers 32 can either be wound directly on one another or at a distance. After one or more layers 32 wound in this way, a cooling channel 10 made of two tubes 40 movably connected to one another is inserted. At regular intervals, further cooling channels 10, 11 follow. The number of tubes in the cooling channels may vary, depending on the requirement for cooling.
  • FIGS. 3 and 4 such a cooling channel 12 or 10 is shown in each case.
  • the cooling channel 12 consists of four
  • the cooling channel 10 consists of two tubes 40 connected to one another.
  • the tubes 40 are connected to one another by band-like connecting elements 41, 42.
  • a connecting member 42 connects all four tubes 40 which is alternately performed with respect to the front and back on the on ⁇ view of Figure 3.
  • a second connecting element 41 as well, only on the other side of the tube 40, so that the tubes 40 are connected to each other in a mat-like manner by the connecting elements 41, 42.
  • you can too more or fewer than four tubes 40 are connected together in this way.
  • two tubes 40 are connected to one another by two connecting elements 41.
  • the connecting elements 41 are placed around the same tube side of the two tubes 40.
  • the connecting element 41 can also be continued on the rear side of the tubes 40 or a second connecting element can be mounted on the rear side of the tubes 40.
  • Cooling channel made of three tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

L'invention concerne un enroulement (1) ainsi qu'un procédé de fabrication d'un enroulement (1). Des tuyaux (40) s'étendant parallèlement à un axe longitudinal (13) sont introduits entre deux couches (32) d'un matériau conducteur en forme de bande ou de fil enroulé autour de l'axe longitudinal (13) et l'enroulement (1) est enrobé d'une résine synthétique (20). Les tuyaux insérés (40) forment ainsi des canaux de refroidissement. Selon l'invention, au moins deux tuyaux (40) s'étendant parallèlement l'un à côté de l'autre et formant un canal de refroidissement (10, 11, 12) sont reliés mobiles l'un à l'autre avant l'enroulement. Les canaux de refroidissement (10, 11, 12) à enrouler s'adaptent ainsi de manière optimale au rayon des couches environnantes (32).
PCT/EP2012/064958 2011-08-11 2012-07-31 Enroulement et procédé de fabrication d'un enroulement à canal de refroidissement WO2013020859A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011080827A DE102011080827A1 (de) 2011-08-11 2011-08-11 Wicklung und Verfahren zur Herstellung einer Wicklung mit Kühlkanal
DE102011080827.2 2011-08-11

Publications (1)

Publication Number Publication Date
WO2013020859A1 true WO2013020859A1 (fr) 2013-02-14

Family

ID=46603959

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/064958 WO2013020859A1 (fr) 2011-08-11 2012-07-31 Enroulement et procédé de fabrication d'un enroulement à canal de refroidissement

Country Status (2)

Country Link
DE (1) DE102011080827A1 (fr)
WO (1) WO2013020859A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112005620A (zh) * 2018-04-25 2020-11-27 西门子股份公司 底板及用于制造该底板的方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2883399T3 (es) 2014-11-10 2021-12-07 Siemens Energy Global Gmbh & Co Kg Conductos de enfriamiento para devanado de transformadores
CN107895637A (zh) * 2017-06-30 2018-04-10 广东合新材料研究院有限公司 一种电磁线圈液冷系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6368530B1 (en) * 1999-12-16 2002-04-09 Square D Company Method of forming cooling ducts in cast resin coils
DE60209574T2 (de) 2001-12-21 2006-08-24 Abb Technology Ag Kühlkanal für in kunstharz vergossene transformatorspule
US20110063062A1 (en) * 2009-09-11 2011-03-17 Abb Technology Ag Disc wound transformer with improved cooling

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195084A (en) * 1962-05-23 1965-07-13 Westinghouse Electric Corp Electrical apparatus having foil wound windings and metallic duct formers
DE1980288U (de) * 1966-07-26 1968-03-07 Licentia Gmbh In giessharz vergossene wicklung von transformatoren und drosselspulen.
US3692637A (en) * 1969-11-24 1972-09-19 Carl Helmut Dederra Method of fabricating a hollow structure having cooling channels
US4541171A (en) * 1984-04-27 1985-09-17 Westinghouse Electric Corp. Method of making an electrical transformer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6368530B1 (en) * 1999-12-16 2002-04-09 Square D Company Method of forming cooling ducts in cast resin coils
DE60209574T2 (de) 2001-12-21 2006-08-24 Abb Technology Ag Kühlkanal für in kunstharz vergossene transformatorspule
US20110063062A1 (en) * 2009-09-11 2011-03-17 Abb Technology Ag Disc wound transformer with improved cooling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112005620A (zh) * 2018-04-25 2020-11-27 西门子股份公司 底板及用于制造该底板的方法
CN112005620B (zh) * 2018-04-25 2022-06-03 西门子股份公司 底板及用于制造该底板的方法
US11528799B2 (en) 2018-04-25 2022-12-13 Siemens Aktiengesellschaft Backplane and method for producing same

Also Published As

Publication number Publication date
DE102011080827A1 (de) 2013-02-14

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