EP1625602B1 - Wicklung für einen transformator und verfahren zur herstellung - Google Patents

Wicklung für einen transformator und verfahren zur herstellung Download PDF

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Publication number
EP1625602B1
EP1625602B1 EP20040742746 EP04742746A EP1625602B1 EP 1625602 B1 EP1625602 B1 EP 1625602B1 EP 20040742746 EP20040742746 EP 20040742746 EP 04742746 A EP04742746 A EP 04742746A EP 1625602 B1 EP1625602 B1 EP 1625602B1
Authority
EP
European Patent Office
Prior art keywords
outs
cut
winding
machining
series
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20040742746
Other languages
English (en)
French (fr)
Other versions
EP1625602A2 (de
Inventor
Jean-Marc Scherrer
Jean-Paul Scherrer
Jean-Claude Beisser
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Individual
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Individual
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Publication of EP1625602A2 publication Critical patent/EP1625602A2/de
Application granted granted Critical
Publication of EP1625602B1 publication Critical patent/EP1625602B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • 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
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/025—Constructional details of transformers or reactors with tapping on coil or windings
    • 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
    • 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
    • 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
    • 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
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core
    • 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
    • Y10T83/00—Cutting
    • Y10T83/263—With means to apply transient nonpropellant fluent material to tool or work

Definitions

  • the present invention relates to a winding for electrical transformer and in particular a low voltage and high intensity secondary winding for it and a method of manufacturing such a winding.
  • transformers capable of delivering large intensity values are often difficult because of the need to wind, especially at the secondary level, large diameter wires. Moreover, in such transformers, it is particularly difficult to arrange on these windings points, such as midpoints, for establishing an output in communication with a given number of turns thus making it possible to take variable output voltages. It is also known that transformers of this type, probably because of the difficulties mentioned above, are of a particularly high cost.
  • the object of the present invention is to remedy the various aforementioned drawbacks by having a transformer winding, and in particular a low-voltage and high-intensity secondary winding, which is machined in the mass of a tubular element and which is easy to implement, and therefore a relatively moderate manufacturing cost, and which, moreover, has voltage sampling sockets arranged on a number of turns almost any, thus allowing the user to have a voltage, in particular output, totally adaptable according to its needs.
  • the present invention thus relates to a winding, in particular for an electrical transformer, consisting of a cylindrical tubular metal element of polygonal cross section, hollowed so as to form a helix, comprising a series of cuts (3a, 3c, 3d) substantially parallel to each other on all of its sides (1a, 1c, 1d), with the exception of one last side (1b), and cutouts (3b) in the last side to ensure the junction of the cutouts opening into the sides adjacent to the latter side, so that these cuts are in continuity with each other and constitute a groove (2) unique helicoidal shape, characterized in that at least one of the sides of the cylindrical tubular element has grooves which extend along a generatrix thereof, which are open on the outside and which have a cross section T-shaped, each of these grooves being adapted to receive means for fixing an electrical connection lug.
  • the cross section of the tubular element will preferably be square, rectangular or triangular.
  • machining of the cuts will be performed by means of a rotary machining disc.
  • This secondary winding 1 consists of a cylindrical tubular element with rectangle-shaped cross-section, thus comprising four main faces 1a, 1b, 1c, 1d.
  • This tubular element is hollowed out with a slit 2, of substantially helical shape, which crosses its thickness from one side to the other and which extends over its entire periphery from its top to its base.
  • This slot 2 is in fact made of a series of rectilinear and parallel windows 3a, 3b, 3c, 3d which are machined from one of the four faces, namely here from the face 1d. As shown on the Figures 1 to 5 , the windows 3a, 3c and 3d are transverse and are machined in a single series of passes using a rotary machining disc 4 from the face 1d as shown in FIGS.
  • This embodiment is particularly interesting in that it can be executed in a very easy, fast and repetitive manner by numerically controlled machines which, for example, will make all transverse parallel grooves from the face 1d of the tube. then, after turning it over and a slight inclination ⁇ , will make the grooves 3b inclined at an angle ⁇ relative to the transverse axis xx '.
  • the cross section of the winding can be easily controlled by adjusting the thickness e of the wall of the element. tubular 1, and also on the value of the pitch P thereof.
  • a mid-point on such a winding can easily be arranged, for example as shown in figure 1 a simple threaded hole 10 in an inter-slot space on which it will be easy to come fix, by suitable screwing means an output terminal, on a wire.
  • the user can thus select, between this output terminal and a reference terminal X, a virtually any secondary voltage between 0 and the output voltage provided for the transformer.
  • the tubular element consists of a profiled element whose cross section, which appears clearly on the figure 7 , is of square shape, two opposite sides of the profiled element 1 having grooves 5 extending along a generatrix of the profile, which are open on the outside and have a T-shaped cross section.
  • Each of these grooves 5 is thus adapted to receive the head 6 of a screw 7 allowing by means of a nut 9 to ensure the attachment of an electrical connection lug 11 on which is welded a conductor wire 13.
  • the transformer may consist of a first external primary winding 15, and a second primary winding 15 'which is arranged inside the secondary winding 1, which are connected, in a conventional manner, by a circuit 17.
  • the secondary winding 1 of this transformer is made by machining of a type such as that described with regard to the figure 1 .
  • the present embodiment is particularly interesting in that it allows the user to have, between a terminal X taken as reference of the secondary and a second terminal Y, a voltage proportional to the number of turns existing between these two terminals.
  • the T-shaped grooves 5 make it possible to arrange the connection means of the Y terminal in an almost arbitrary area of the two opposite faces 1a and 1b.
  • the cross section of the tubular element may be of any shape. It can thus, as represented on the figure 9 , be of triangular cross section or polygonal cross section, and this according to the specific uses desired by the user.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Coil Winding Methods And Apparatuses (AREA)

Claims (4)

  1. Wicklung, insbesondere für elektrischen Transformator, gebildet aus einem rohrförmigen zylindrischen Metallelement (1) von polygonalem Querschnitt, das derart eingeschnitten ist, dass eine Helix gebildet wird, die eine Abfolge von Ausschnitten (3a, 3c, 3d) aufweist, die im Wesentlichen zueinander parallel sind, auf der Gesamtheit ihrer Seiten (1a, 1c, 1d) mit Ausnahme von einer letzten Seite (1b), und Ausschnitte (3b) in der letzten Seite, um die Ausschnitte zu verbinden, die in die zu dieser letzten Seite benachbarten Seiten einmünden, so dass diese Ausschnitte miteinander zusammenhängend sind und eine einzige Nut (2) helixartiger Form bilden, wobei die Wicklung dadurch gekennzeichnet ist, dass mindestens eine der Seiten des rohrförmigen zylindrischen Elementes (1) Nuten (5) aufweist, die sich entlang einer Erzeugenden von diesem erstrecken, die nach außen hin offen sind und die einen T-förmigen Querschnitt aufweisen, wobei jede dieser Nuten geeignet ist, Befestigungseinrichtungen eines elektrischen Anschlussschuhs aufzunehmen.
  2. Wicklung nach Anspruch 1, dadurch gekennzeichnet, dass der Querschnitt des rohrförmigen Elementes quadratisch, rechteckig oder dreieckig ist.
  3. Verfahren zur Herstellung einer Wicklung (1) nach Anspruch 1, insbesondere für elektrischen Transformator, ausgehend von einem rohrförmigen zylindrischen Metallelement von polygonalem Querschnitt, dadurch gekennzeichnet, dass es folgende Schritte umfasst:
    - maschinelles Fertigen, bei einer ersten Abfolge von Arbeitsgängen, einer Reihe von Ausschnitten (3a, 3c, 3d), die im Wesentlichen zueinander parallel sind, durch die Gesamtheit der Seiten (1a, 1c, 1d) des rohrförmigen Elementes hindurch mit Ausnahme einer letzten Seite (1b),
    - maschinelles Fertigen, bei einer zweiten Abfolge von Arbeitsgängen, von Ausschnitten (3b) in der letzten Seite (1b), um die Ausschnitte zu verbinden, die in die zu dieser Seite benachbarten Seiten einmünden, so dass diese Ausschnitte miteinander zusammenhängend sind und eine einzige Nut (2) helixartiger Form bilden.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die maschinelle Fertigung der Ausschnitte mittels einer rotierenden Zerspanungsscheibe (4) erfolgt.
EP20040742746 2003-05-16 2004-05-14 Wicklung für einen transformator und verfahren zur herstellung Expired - Lifetime EP1625602B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0305917A FR2854982B1 (fr) 2003-05-16 2003-05-16 Enroulement pour transformateur et son procede de fabrication
PCT/FR2004/001198 WO2004105063A2 (fr) 2003-05-16 2004-05-14 Enroulement pour transformateur et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP1625602A2 EP1625602A2 (de) 2006-02-15
EP1625602B1 true EP1625602B1 (de) 2009-03-18

Family

ID=33306421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040742746 Expired - Lifetime EP1625602B1 (de) 2003-05-16 2004-05-14 Wicklung für einen transformator und verfahren zur herstellung

Country Status (6)

Country Link
US (1) US7836580B2 (de)
EP (1) EP1625602B1 (de)
AT (1) ATE426238T1 (de)
DE (1) DE602004020067D1 (de)
FR (1) FR2854982B1 (de)
WO (1) WO2004105063A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4479788B2 (ja) * 2007-12-20 2010-06-09 株式会社デンソー コイル成形方法およびコイル成形用金型
USD675498S1 (en) 2010-06-18 2013-02-05 Master Lock Company Llc Ratchet
JP5592554B1 (ja) 2013-12-18 2014-09-17 武延 本郷 冷間圧接装置、コイル製造装置、コイルおよびその製造方法
CN117543908A (zh) * 2013-12-18 2024-02-09 株式会社阿斯特 线圈制造装置和线圈

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE414841C (de) * 1921-11-20 1925-06-13 Edmund Schroeder Transformator fuer elektrische Schweiss- und Erwaermungsmaschinen
US3466743A (en) 1965-07-02 1969-09-16 Gen Electric Spiral coil comprising a tubular blank with parallel,rectilinear cuts therein
US3656378A (en) 1970-12-17 1972-04-18 Ariel R Davis Method of manufacture
US3731243A (en) * 1971-12-08 1973-05-01 A Davis Inductive winding
JPS6356904A (ja) * 1986-08-25 1988-03-11 ザ　ス−ペリオア　エレクトリツク　カンパニ− 誘導装置
FR2656951A1 (fr) 1990-01-05 1991-07-12 Scherrer Fernand Transformateur de type torique.
US5488761A (en) * 1994-07-28 1996-02-06 Leone; Ronald P. Flexible shaft and method for manufacturing same

Also Published As

Publication number Publication date
US7836580B2 (en) 2010-11-23
WO2004105063A2 (fr) 2004-12-02
DE602004020067D1 (de) 2009-04-30
EP1625602A2 (de) 2006-02-15
ATE426238T1 (de) 2009-04-15
WO2004105063A3 (fr) 2005-04-07
FR2854982B1 (fr) 2007-05-18
US20070171021A1 (en) 2007-07-26
FR2854982A1 (fr) 2004-11-19

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