EP0053644A1 - Verfahren zur Herstellung einer Wicklung um einen Kern einer Drosselspule oder eines Transformators und nach diesem Verfahren hergestellte Wicklungsstirnen - Google Patents

Verfahren zur Herstellung einer Wicklung um einen Kern einer Drosselspule oder eines Transformators und nach diesem Verfahren hergestellte Wicklungsstirnen Download PDF

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Publication number
EP0053644A1
EP0053644A1 EP80401779A EP80401779A EP0053644A1 EP 0053644 A1 EP0053644 A1 EP 0053644A1 EP 80401779 A EP80401779 A EP 80401779A EP 80401779 A EP80401779 A EP 80401779A EP 0053644 A1 EP0053644 A1 EP 0053644A1
Authority
EP
European Patent Office
Prior art keywords
mandrel
flaps
winding
flanges
coil
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Withdrawn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
EP80401779A
Other languages
English (en)
French (fr)
Inventor
Gérard Haroux
Marc Dujardin
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.)
Sa Clarel
Original Assignee
Sa Clarel
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 Sa Clarel filed Critical Sa Clarel
Priority to EP80401779A priority Critical patent/EP0053644A1/de
Priority to FI813955A priority patent/FI813955A7/fi
Publication of EP0053644A1 publication Critical patent/EP0053644A1/de
Withdrawn legal-status Critical Current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
    • 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
    • H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
    • 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
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings

Definitions

  • the subject of the present invention is a method of manufacturing a winding around a choke or transformer core, for example a ballast choke for fluorescent lamps, in which the winding is wound on a mandrel corresponding to the core. on which he is then put on.
  • a choke or transformer core for example a ballast choke for fluorescent lamps
  • the invention also relates to coil heads adapted to this method.
  • the object of the invention is to provide a process adaptable to the manufacture of choke cores or transformers of a predetermined section, but of different length from series to series. Another object of the invention is to facilitate automatic operations during manufacture.
  • the method according to the invention is characterized in that there is on each longitudinal face of the mandrel a foldable insulating sheet, suitably cut, in that one applies to the end faces of the mandrel coil heads bordered by flanges and whose base is extended by foldable panels along a predetermined distance, the longitudinal faces of the mandrel, in that a part of the insulating sheets is wedged below the said foldable panels, in that the winding wire is wound on the bases and foldable sides of the coil heads, which has the effect of tightening the sides against the mandrel and in that the edges of the insulating sheets are folded over the finished winding.
  • Figure 1 of the drawing shows, in perspective, a coil head and Figure 2 a winding of a partially cut laminated iron core.
  • a mandrel (not shown) having the dimensions of part 1 of a core intended to support the winding is covered on each of its two longitudinal sides with an insulating sheet, for example of composite paper of a median rectangle 2 invisible in FIG. 2 of the drawing. approximately the dimension of the longitudinal face of part 1 of the laminated iron core.
  • each insulating sheet is p Rolon - gen e by a trapezoidal part 3 and a rectangular portion 4 more Longer than rectangle 2, for example the length of the longest side of the trapezoidal part 3 and less wide than rectangle 2.
  • each coil head comprises a base 5. flanked by flanges 6.
  • the base 5 is extended on either side of the section of part 1 of the core by foldable sections 7 which run along and cover the middle rectangles 2 of the insulating sheets .
  • the foldable sides 7 are not perpendicular to the base 5 but include with this base obtuse angles a little larger than right angles which facilitates the insertion of the coil heads on the mandrel lined with insulating sheets and ensures a wedging of the rectangles 2 of the insulating sheets under the sides 7 against the mandrel, not shown.
  • the flanges 6 have indentations 8 and / or 9 in order to allow a slight arching of the base 5 or a folding of the sides 7 relative to the base 5 when, during the winding action, les_pans 7 are applied to the longitudinal faces of the mandrel under the effect of the pressure of the wires It to wind it.
  • the jamming of the insulating sheets under the folding panels 7 is reinforced since the angle between the longitudinal faces of the mandrel and the panels 7 becomes practically zero.
  • notches 8 In place of two notches 8 in the middle of the base 5 as shown in the drawing, four notches 9 can be provided, for example at the places of the edges between the base 5 and the sides 7.
  • the number of notches can be chosen as desired depending on the stiffness of the material forming the spool head in order to obtain the desired result which is to tighten the folding planes 7 on the longitudinal faces of the mandrel lined with insulating sheets when the wire 11 is wound on the spool heads .
  • ribs 12 and 13 are supported on extensions 14 of the base 5.
  • the ribs 13 are arranged obliquely, in order to allow the wrapping of the winding and coil heads by the trapezoidal parts 3 of the insulating sheets. Thanks to these trapezoidal parts 3, which run along the inclined ribs 13, there is everywhere provided a path of sufficient length between the wires Il of the winding and the iron core, either along the surface of the coil head, or along the surface of the insulating sheet.
  • the folding sides 7 can be very thin and allow deformations to ensure the folding down on the longitudinal faces of the mandrel following the force undergone during the winding of the wires 11. In the latter case it is not necessary to provide indentations and thinning (8.9; 8 ', 9').

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Of Transformers For General Uses (AREA)
EP80401779A 1980-12-10 1980-12-10 Verfahren zur Herstellung einer Wicklung um einen Kern einer Drosselspule oder eines Transformators und nach diesem Verfahren hergestellte Wicklungsstirnen Withdrawn EP0053644A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP80401779A EP0053644A1 (de) 1980-12-10 1980-12-10 Verfahren zur Herstellung einer Wicklung um einen Kern einer Drosselspule oder eines Transformators und nach diesem Verfahren hergestellte Wicklungsstirnen
FI813955A FI813955A7 (fi) 1980-12-10 1981-12-09 Menetelmä, jolla itseinduktiokelan tai muuntajan sydämen ympärille valmistetaan käämitys, sekä tässä menetelmmenetelmässä käytettävät käämityspäät.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80401779A EP0053644A1 (de) 1980-12-10 1980-12-10 Verfahren zur Herstellung einer Wicklung um einen Kern einer Drosselspule oder eines Transformators und nach diesem Verfahren hergestellte Wicklungsstirnen

Publications (1)

Publication Number Publication Date
EP0053644A1 true EP0053644A1 (de) 1982-06-16

Family

ID=8187410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401779A Withdrawn EP0053644A1 (de) 1980-12-10 1980-12-10 Verfahren zur Herstellung einer Wicklung um einen Kern einer Drosselspule oder eines Transformators und nach diesem Verfahren hergestellte Wicklungsstirnen

Country Status (2)

Country Link
EP (1) EP0053644A1 (de)
FI (1) FI813955A7 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438636A3 (en) * 1990-01-26 1992-10-28 Musashino Tuko Co., Ltd. Double insulated transformer of the coaxial type and method of assembling the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425155A (en) * 1946-04-16 1947-08-05 Gen Electric Coil support
US2511174A (en) * 1948-04-20 1950-06-13 Gerald L Osborne Coil bobbin
FR2123271A1 (de) * 1971-01-30 1972-09-08 Weimer Norbert
DE2119042A1 (de) * 1971-04-20 1972-10-26 Graupner, Doerks & Co, Spezialfabrik für Transformatoren, Drahtwiderstände u. Spulen, 8771 Wiesthal Spulenkörper für Transformatoren, Übertrager und dergleichen mit mehreren angeformten Schutzklappen an den Flanschen
FR2147032A1 (de) * 1971-07-29 1973-03-09 Tamura Seisakusho Kk
FR2246040A1 (en) * 1973-10-01 1975-04-25 Siemens Ag Inductance ballast coil for discharge lamps - core consists of two sets of stacked plates

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425155A (en) * 1946-04-16 1947-08-05 Gen Electric Coil support
US2511174A (en) * 1948-04-20 1950-06-13 Gerald L Osborne Coil bobbin
FR2123271A1 (de) * 1971-01-30 1972-09-08 Weimer Norbert
DE2119042A1 (de) * 1971-04-20 1972-10-26 Graupner, Doerks & Co, Spezialfabrik für Transformatoren, Drahtwiderstände u. Spulen, 8771 Wiesthal Spulenkörper für Transformatoren, Übertrager und dergleichen mit mehreren angeformten Schutzklappen an den Flanschen
FR2147032A1 (de) * 1971-07-29 1973-03-09 Tamura Seisakusho Kk
FR2246040A1 (en) * 1973-10-01 1975-04-25 Siemens Ag Inductance ballast coil for discharge lamps - core consists of two sets of stacked plates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438636A3 (en) * 1990-01-26 1992-10-28 Musashino Tuko Co., Ltd. Double insulated transformer of the coaxial type and method of assembling the same

Also Published As

Publication number Publication date
FI813955L (fi) 1982-06-11
FI813955A7 (fi) 1982-06-11

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811020

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850702

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HAROUX, GERARD

Inventor name: DUJARDIN, MARC