EP1625602A2 - Wicklung für einen transformator und verfahren zur herstellung - Google Patents
Wicklung für einen transformator und verfahren zur herstellungInfo
- Publication number
- EP1625602A2 EP1625602A2 EP04742746A EP04742746A EP1625602A2 EP 1625602 A2 EP1625602 A2 EP 1625602A2 EP 04742746 A EP04742746 A EP 04742746A EP 04742746 A EP04742746 A EP 04742746A EP 1625602 A2 EP1625602 A2 EP 1625602A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- winding
- machining
- tubular element
- 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.)
- Granted
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
- H01F27/2847—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 an electrical transformer and in particular a low voltage and high current secondary winding for the latter as well as a method of manufacturing such a winding.
- transformers capable of delivering large intensity values is often difficult because of the need to wind, particularly at the secondary level, wires of large diameter. Furthermore, in such transformers, it is particularly difficult to have points on these windings, such as midpoints, making it possible to establish an output in communication with a determined number of turns, thus making it possible to take variable output voltages.
- transformers of this type probably due to the difficulties mentioned above, are of a particularly high cost price.
- the object of the present invention is to remedy the various aforementioned drawbacks by presenting a winding for a transformer, and in particular a low voltage and high current secondary winding, which is machined in the mass of a tubular element and which is easy to implement, and therefore of a relatively moderate manufacturing cost, and which, moreover, has voltage sampling sockets arranged on an almost arbitrary number of turns, thus allowing the user to have a voltage, in particular an output, totally adaptable according to his needs.
- the subject of the present invention is therefore a method of manufacturing a winding, in particular for an electrical transformer, from a cylindrical tubular metallic element of polygonal cross section, characterized in that it comprises the steps consisting in:
- the machining of the cuts will be carried out by means of a rotary machining disc.
- the present invention also relates to a winding, in particular for an electrical transformer, consisting of a cylindrical tubular metallic element of polygonal cross section, hollowed out so as to form a helix, 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 'exterior and which have a T-shaped cross section, 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.
- Figure 1 is a perspective view of an exemplary embodiment of a winding of a transformer according to the invention.
- Figure 2 is a vertical sectional view of the tubular member and the rotary tool during the first machining pass.
- FIG. 3 is a top view of the tubular element and of the machining tool shown in FIG. 2.
- Figure 4 is a vertical sectional view of the tubular member and the rotary tool during the second machining pass.
- FIG. 5 is a top view of the tubular element and of the machining tool shown in FIG. 4.
- FIG. 6 is a schematic front view of an example of a transformer equipped with a winding according to the invention.
- FIG. 7 is a top view of the transformer shown in FIG. 6.
- FIG. 8 is a side view of the transformer shown in FIGS. 6 and 7.
- FIG 9 is a perspective view of an alternative embodiment of the present invention.
- a winding 1 according to the invention intended to constitute in particular the secondary of a transformer.
- This secondary winding 1 consists of a cylindrical tubular element with a straight section in the shape of a rectangle, thus comprising four main faces la, lb, le, ld.
- This tubular element is hollowed out of a slot 2, of substantially helical shape, which passes through its thickness right through and which extends over its entire periphery from its top to its base.
- This slot 2 is in fact made up 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 ld.
- 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 ld as shown in FIGS. 2 and 3, while the windows 3b are produced during a second series of passes through the face 1b and are inclined at an angle ⁇ with respect to their transverse axis xx ', so that they liaise with the grooves corresponding 3a and 3c of the faces 1a and 1c which are adjacent to them so as to form a substantially helical slot 2, and that, when one turns around the tubular element 1, starting for example from an angle A thereof ci and passing through respective angles B, C and D, we arrive at point A ', located under point A, at a distance from it equal to the sum of the interfering space, or not P, separating the different slots, and of the width e of the slot 2.
- a helical slot produced in the profiled element 1 is therefore ultimately obtained.
- This embodiment is particularly advantageous in that it can be executed very easily, quickly and repetitively by numerically controlled machines which, for example, will produce all of the parallel transverse grooves from the face ld of the tube. , then, after reversing the latter 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 varying the thickness e of the wall of the element. tubular 1, and also on the value of the pitch P thereof.
- the present invention is also particularly advantageous in that it makes it possible to easily have a midpoint on such a winding by making, for example as shown in FIG. 1, a simple threaded hole 10 in an inter-slot space on which it it will be easy to fix an output terminal by suitable screwing means on a conductive wire. The user can thus select, between this output terminal and a reference terminal X, an almost any secondary voltage between 0 and the output voltage provided for the transformer.
- FIG. 6 a particularly interesting variant of the invention in which the tubular element consists of a profiled element whose cross section, which appears clearly in Figure 7, is square, two sides opposite of the profiled element 1 having grooves 5 extending along a generatrix of the profile, which are open to the outside and have a T-shaped cross section.
- Each of these grooves 5 is thus able to receive the head 6 a screw 7 allowing by means of a nut 9 to secure the fixing of an electrical connection lug 11 on which a conductive wire 13 is welded.
- first external primary winding 15, and a second primary winding 15 ' which is arranged inside the secondary winding 1, which are connected to each other, in a conventional manner, by a magnetic circuit 17.
- the secondary winding 1 of this transformer is produced by machining of a type such as that described with reference to FIG. 1.
- the present embodiment is particularly advantageous in that it allows the user to have, between a terminal X taken as the secondary reference and a second terminal Y, of a voltage proportional to the number of turns existing between these two terminals.
- the grooves 5 in T indeed make it possible to arrange the connection means of the terminal Y in an almost arbitrary zone of the two opposite faces 1a and 1b.
- the cross section of the tubular element can be of any shape. It can thus, as shown in FIG. 9, be of triangular cross section or else of polygonal cross section, and this according to the specific uses desired by the user.
- a first series of passes machining n ⁇ 1 sides will be produced. These passes can preferably be transverse to the tubular element and then a second series of passes on the remaining side whose inclination ⁇ will make it possible to join slots on the adjacent sides so as to form a helical machining.
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)
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 true EP1625602A2 (de) | 2006-02-15 |
EP1625602B1 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)
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)
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 |
-
2003
- 2003-05-16 FR FR0305917A patent/FR2854982B1/fr not_active Expired - Lifetime
-
2004
- 2004-05-14 WO PCT/FR2004/001198 patent/WO2004105063A2/fr active Application Filing
- 2004-05-14 DE DE200460020067 patent/DE602004020067D1/de not_active Expired - Fee Related
- 2004-05-14 US US10/553,658 patent/US7836580B2/en not_active Expired - Fee Related
- 2004-05-14 EP EP20040742746 patent/EP1625602B1/de not_active Expired - Lifetime
- 2004-05-14 AT AT04742746T patent/ATE426238T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2004105063A2 * |
Also Published As
Publication number | Publication date |
---|---|
US7836580B2 (en) | 2010-11-23 |
WO2004105063A2 (fr) | 2004-12-02 |
EP1625602B1 (de) | 2009-03-18 |
DE602004020067D1 (de) | 2009-04-30 |
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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