EP0836205A1 - Wickelverfahren für Windungen in radialen Schichten - Google Patents

Wickelverfahren für Windungen in radialen Schichten Download PDF

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Publication number
EP0836205A1
EP0836205A1 EP97410112A EP97410112A EP0836205A1 EP 0836205 A1 EP0836205 A1 EP 0836205A1 EP 97410112 A EP97410112 A EP 97410112A EP 97410112 A EP97410112 A EP 97410112A EP 0836205 A1 EP0836205 A1 EP 0836205A1
Authority
EP
European Patent Office
Prior art keywords
layer
core
winding
crown
rollers
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
EP97410112A
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English (en)
French (fr)
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EP0836205B1 (de
Inventor
Aimé Paucher
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Individual
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Individual
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Publication date
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Publication of EP0836205A1 publication Critical patent/EP0836205A1/de
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    • 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
    • H01F41/082—Devices for guiding or positioning the winding material on the former
    • H01F41/084—Devices for guiding or positioning the winding material on the former for forming pancake coils

Definitions

  • the present invention relates to the production of a electric coil whose layers of turns are radial and alternately wound from the inside to the outside and from outside to inside.
  • An object of the present invention is to provide a method of winding such radial layer coils, which is particularly simple to implement.
  • Another object of the present invention is to provide such a process which allows, using a single device, make coils of variable internal and external diameters.
  • the process includes the steps of forming around a core the layer with an internal diameter greater than diameter of the core, and to exert a traction on the internal whorl to tighten the layer on the core.
  • the layer is formed by exerting an axial pressure on the turns during their winding.
  • the method further comprises the steps of winding directly around the core the next layer from the inside outward by pressing on the exposed side of this layer; to axially offset the layers by the thickness of two layers; maintain the last layer on the periphery providing a support plan for a new layer; and to realize the new layer wound from the outside to the inside.
  • the present invention also relates to an apparatus for implementing the above-mentioned method, comprising a crown radial surrounding the nucleus and defining with it a space winding a current layer; radial rollers extending to the core and urged towards the upper face of the crown; radial wedges movable between a position in contact with the core and a retracted position, these shims being shifted down from the top of the crown of a distance between a layer thickness and two layer thicknesses; and means for lifting the crown compared to the core of two layer thicknesses.
  • the crown has retractable platforms associated with rollers to allow the rollers to lower.
  • the apparatus includes a wire feeder for supplying the turns during winding at one of the rollers, the debtor being capable of selectively exerting traction or axial pressure on the wire.
  • the rollers are conical, their largest diameter being side of the nucleus.
  • the rollers are fixed and the whole of the crown, shims and the nucleus is rotating.
  • An essential aspect of the winding process according to the invention lies in the production of the wound layers of outside to inside.
  • the inner diameter of the layer is inevitably larger than the diameter of the nucleus of the future coil. So, we pull the last turn, that is to say the inner coil, to tighten the whole of the layer on the core, this core can be of section and any diameter.
  • Figures 1 and 2A show a top view and a partial side view in section of an embodiment winding apparatus for carrying out the method according to the invention.
  • the core 10 of the future coil is arranged substantially in the center of a radial crown 12.
  • the space between the core 10 and this crown 12 is intended to receive a layer 14 during winding.
  • the internal diameter of the crown therefore determines the maximum external diameter of the coil.
  • the upper face of layer 14 is held in place by radial rollers 16 (of which only three are shown) which are biased towards the upper face of the crown 12 and come into contact with the core 10. These rollers 16 slide axially in order to be able to modify the diameter of the core 10.
  • the winding wire 14-1 comes tangentially from below one of the rollers 16. To facilitate the introduction of wire 14-1, we can provide an area without rollers in front of the roller which receives the wire.
  • the underside of layer 14 is held in place by radial wedges 18 regularly distributed around the core 10 below the crown 12.
  • Each of these wedges 18 is movable between a position of contact with the core 10 and a position retracted where the inner end of the wedge is located substantially at the level of the internal diameter of the crown 12. The stroke of these shims 18 and of the rollers 16 determines the minimum core diameter 10.
  • the assembly of the crown 12, the core 10, and the shims 18 is likely to be rotated about the axis of the core while the rollers 16 are fixed.
  • the rollers 16 are preferably conical, the most large diameter being on the side of the core 10.
  • the rollers 16 are then tilted to provide a horizontal plane to maintain the wound layer 14. As a result, the contact zone between each roller 16 and the core 10 is reduced to a point, which reduces friction.
  • the crown 12 includes platforms 20 which can be brought into correspondence with the rollers 16 by a rotation of the crown 12. These platforms 20 are retractable down to allow the rollers 16 to lower to reach the plane of the holds 18.
  • the wire 14-1 is rectangular or square. We would prefer such a choice, because it facilitates the adjustment of the device according to the section of the wire.
  • the distance between the rollers 16 and the shims 18 can then be freely adjusted between once and twice the wire height. It is thus possible, with a single adjustment, to wind wires varying in height from single or double.
  • the height of the shims 18 must be adjusted so that the distance separating them rollers 16 is substantially equal to the diameter of the wire, this to prevent the turns of the same layer from overlapping.
  • Figures 1 and 2A illustrate a first step in winding of a first layer from the outside to the inside.
  • the rollers 16 are in contact with the upper face of the crown 12 and the shims 18 are supported on the core 10.
  • the crown 12 (as well as the shims 18 and the core 10) is set clockwise rotation, for example.
  • a debtor, no shown, provides wire 14-1 with some axial pressure P in the direction of rotation of the crown 12. This pressure P is chosen so that the turns being wound have tends to move away from the nucleus 10.
  • the first turn has tendency to press against the internal diameter of the crown 12 and each subsequent turn tends, as is shown, to be pressed inside the previous turn.
  • the layer that we just wound normally has a diameter internal greater than the diameter of the nucleus.
  • the next step, illustrated in Figure 2B, is to pull T on wire 14-1 until the layer which has just been wound up tightens on the core 10.
  • This traction T is preferably exerted by stopping the crown 12 and operating the debtor in reverse. According to one variant, traction T could be obtained by braking the debtor while the crown 12 continues to rotate.
  • the crown 12 performs, if necessary if necessary, a fraction of a turn to bring platforms 20 into correspondence with the rollers 16. So the platforms 20 are lowered while the wedges 18 are retracted. In practical, the layers we just wound are so tight on core 10 that they cannot slide down under the force of the rollers 16. Furthermore, this sliding is not desirable because it could damage the insulation of the turns interior.
  • the crown 12 is offset relative to the core 10 the height of two layers, as shown. For this, the crown 12 is lifted, for example, by a jack with position adjustable by digital control. Alternatively, the core 10 could be lowered, which would however disadvantage of doubling the overall height of the device the fact that the core 10 should move to one side and the other from crown 12.
  • the shims 18 are slid towards the core 10 and the platforms 20 are then lifted to their initial position.
  • the internal ends of the shims 18 come abut against the outer coil of the last wound layer and maintain this layer which would otherwise tend to unfold.
  • the device is then ready to repeat the step illustrated in Figure 2A to wind a new layer of outside to inside.
  • Each layer can be made to a diameter different. This possibility has the advantage of allowing the creation of intermediate output terminals for which the total number of turns is not a multiple of the number of turns nominal layers.
  • the thickness of the shims 18 is chosen to be less than the thickness of the layers. So the holds can still reach the outside diameter of this layer at the Figure 2F.
  • the crown 12 is continuous, that is to say devoid of retractable wedges 20.
  • a set of pressers is provided which press on the new layer wound in the defined space between the rollers 16, the core 10, and the internal diameter of the crown 12. These pressers descend at the same time as the rollers and continue to descend when rollers 16 abut on the upper face of the crown 12, to bring the last layer wound at the level of the radial shims 18 in FIG. 2E.
  • the translational displacements of the various elements of the apparatus, except of the core 10, are ensured by jacks tires, for example.
  • the rotation can be ensured by a DC motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coil Winding Methods And Apparatuses (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Particle Accelerators (AREA)
EP97410112A 1996-10-08 1997-10-08 Wickelverfahren für Windungen in radialen Schichten Expired - Lifetime EP0836205B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9612414 1996-10-08
FR9612414A FR2754380B1 (fr) 1996-10-08 1996-10-08 Procede de bobinage de spires en couches radiales
US08/944,129 US5931405A (en) 1996-10-08 1997-10-06 Method for achieving windings in radial layers

Publications (2)

Publication Number Publication Date
EP0836205A1 true EP0836205A1 (de) 1998-04-15
EP0836205B1 EP0836205B1 (de) 2002-02-13

Family

ID=26233035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97410112A Expired - Lifetime EP0836205B1 (de) 1996-10-08 1997-10-08 Wickelverfahren für Windungen in radialen Schichten

Country Status (11)

Country Link
US (1) US5931405A (de)
EP (1) EP0836205B1 (de)
JP (1) JPH10116747A (de)
CN (1) CN1129152C (de)
AU (1) AU728385B2 (de)
BR (1) BR9704989A (de)
CA (1) CA2217544A1 (de)
DE (1) DE69710406T2 (de)
ES (1) ES2173410T3 (de)
FR (1) FR2754380B1 (de)
NO (1) NO974575L (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5490186B2 (ja) * 2012-05-31 2014-05-14 株式会社エス・エッチ・ティ コイルの巻線方法及び変圧器
CN112141806A (zh) * 2020-09-30 2020-12-29 格力大松（宿迁）生活电器有限公司 用于将漆包线缠入绕线盘上的工具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE601053C (de) * 1930-08-14 1934-08-07 Siemens & Halske Akt Ges Verfahren zum fortlaufenden Wickeln von fuer elektrische Einrichtungen bestimmten Spulen aus Scheibenwicklungen, die wechselweise von innen nach aussen und von aussen nac innen gewickelt werden
DE1239016B (de) * 1964-04-22 1967-04-20 Licentia Gmbh Vorrichtung zur Herstellung von Zylinderwicklungen fuer Transformatoren u. dgl.
FR2160276A1 (de) * 1971-11-17 1973-06-29 Zaporozh Transformator
DE2759253A1 (de) * 1977-12-31 1979-07-12 Bbc Brown Boveri & Cie Wickelvorrichtung fuer transformatorwicklung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1813994A (en) * 1927-11-19 1931-07-14 Westinghouse Electric & Mfg Co Winding and method of constructing the same
DE1231197B (de) * 1961-07-25 1966-12-29 Schloemann Ag Verfahren und Vorrichtung zum Umformen eines, beispielsweise aus einem Kaltwalzwerk kommenden, festgewickelten Bandbundes aus magnetisierbarem Stahlband in ein geoeffnetes Bandbund mit distanzierten Windungen
US3640112A (en) * 1969-05-12 1972-02-08 Republic Steel Corp Coiling method and apparatus
NL169367C (nl) * 1970-12-09 1982-07-01 Lode S Instr N V Werkwijze en inrichting voor het bepalen van de coagulatietijd van bloed.
US3750719A (en) * 1971-10-15 1973-08-07 L Goldman Device for winding continuous winding with interlay sections
NL8802882A (nl) * 1988-11-22 1990-06-18 Smit Transformatoren Bv Van axiale kanalen voorziene, als schijvenwikkeling uitgevoerde transformatorwikkeling.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE601053C (de) * 1930-08-14 1934-08-07 Siemens & Halske Akt Ges Verfahren zum fortlaufenden Wickeln von fuer elektrische Einrichtungen bestimmten Spulen aus Scheibenwicklungen, die wechselweise von innen nach aussen und von aussen nac innen gewickelt werden
DE1239016B (de) * 1964-04-22 1967-04-20 Licentia Gmbh Vorrichtung zur Herstellung von Zylinderwicklungen fuer Transformatoren u. dgl.
FR2160276A1 (de) * 1971-11-17 1973-06-29 Zaporozh Transformator
DE2759253A1 (de) * 1977-12-31 1979-07-12 Bbc Brown Boveri & Cie Wickelvorrichtung fuer transformatorwicklung

Also Published As

Publication number Publication date
NO974575D0 (no) 1997-10-03
FR2754380B1 (fr) 1998-12-18
BR9704989A (pt) 1999-01-19
DE69710406D1 (de) 2002-03-21
DE69710406T2 (de) 2002-10-10
CA2217544A1 (en) 1998-04-08
ES2173410T3 (es) 2002-10-16
NO974575L (no) 1998-04-14
CN1182945A (zh) 1998-05-27
CN1129152C (zh) 2003-11-26
FR2754380A1 (fr) 1998-04-10
JPH10116747A (ja) 1998-05-06
AU3995697A (en) 1998-04-23
US5931405A (en) 1999-08-03
AU728385B2 (en) 2001-01-11
EP0836205B1 (de) 2002-02-13

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