EP3038119A1 - Procédé d'enroulement et dispositif d'enroulement associé - Google Patents

Procédé d'enroulement et dispositif d'enroulement associé Download PDF

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Publication number
EP3038119A1
EP3038119A1 EP14004356.3A EP14004356A EP3038119A1 EP 3038119 A1 EP3038119 A1 EP 3038119A1 EP 14004356 A EP14004356 A EP 14004356A EP 3038119 A1 EP3038119 A1 EP 3038119A1
Authority
EP
European Patent Office
Prior art keywords
winding
strand
temperature
outlet nozzle
wire
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Withdrawn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
EP14004356.3A
Other languages
German (de)
English (en)
Inventor
Johannes Zerbe
Christian Dinca
Alexander Kreim
Jürgen HAGEDORN
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.)
Aumann GmbH
Original Assignee
Aumann GmbH
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 Aumann GmbH filed Critical Aumann GmbH
Priority to EP14004356.3A priority Critical patent/EP3038119A1/fr
Publication of EP3038119A1 publication Critical patent/EP3038119A1/fr
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a winding method according to the preamble of claim 1 and a winding device therefor.
  • the bulges can - as in EP 2 309 626 A1 proposed - be reduced in that by means of a preform element on the winding body supplied wire on the side facing away from the winding body exerts a force which counteracts the wire against the expected bulge bulge "Pre-bends", so that the wire as a result rests smoothly against the winding body.
  • Another possibility is to increase the wire tension during winding, so that the filling factor can be increased and the bulges can be reduced.
  • the wire draw limits are already set because the wire has a finite cross-section and just for small cross-sections of the wire easily tends to tear, if you increase the wire draw.
  • the present invention seeks to provide a winding method of the type mentioned and a suitable winding device for this, with which reduce the required Drahtzug and also increase the fill factor and can reduce the bulges in non-circular cross-section wound bodies.
  • the basic idea of the invention is the strand-like material - eg a metal wire or a strand-shaped metal Hollow body - to heat immediately before winding the bobbin. Due to the thermal expansion of the winding material this lengthens, depending on the amount of heat supplied. The winding material is wound in the heated state around the winding body. Any bulges disappear when cooling the winding material on the winding body, since the winding material contracts again on cooling.
  • the heated wire has a lower mechanical strength, so that smaller, especially in non-round bobbins, the corner radius. In addition, the bending stress in heated strand-shaped goods is smaller than in cold.
  • the heated material in particular the heated metallic wire
  • the heated metallic wire can be transformed with respect to a winding material at room temperature due to the heating with substantially less resistance.
  • the bulge in the middle of the winding for example on the long side of a tooth coil, thus becomes smaller with the same wire pull, whereby a reduction of approximately 20% can be achieved. This effect thus also increases the electrical fill factor.
  • Verbackspulen can be produced faster by the method according to the invention.
  • Verbackspulen are usually self-supporting coils without bobbin.
  • a coil is first wound and then electrically baked.
  • the method according to the invention it is possible to heat the baked enamel of the wire during winding. This was possible according to conventional technology only with thin wires (with diameters of about 0.3 mm), which are heated during winding by a hot air stream, so as to obtain a self-supporting coil.
  • the method according to the invention is no longer limited in the choice of wire diameter.
  • the degree of heating depends on the desired thermal expansion of the winding material. Preferably, this is heated so that the temperature of the strand-shaped Guts at the outlet of the outlet nozzle below the melting temperature of the material of the strand-like Guts is at least 50 ° C, preferably at least 120 ° C, is.
  • the stranded material e.g. inductively by means of an induction loop and / or by hot gas and / or by energization.
  • the location of the heating is arbitrary, as long as it is ensured that the winding material has a temperature immediately before winding, which is measurably above the ambient temperature. It is also possible to assist or to maintain the heating that the outlet nozzle is heated.
  • the bobbin is non-circular, and has at least one edge, wherein preferably bobbins are used with at least sectionally approximately rectangular cross-section.
  • the winding device has a feed device for rope-shaped material with the outlet nozzle for supplying a strand-like material to be wound onto the winding body and a winding body receptacle for receiving the wound body to be wound.
  • the receptacle and the outlet nozzle are designed to be movable relative to each other, so that the winding process can be completed.
  • the winding device further comprises a heating means, which, for example, an induction loop and / or a current-energizing energizing device and / or a hot gas device and which preferably in the feed direction of the strand-like Guts arranged at least in front of the outlet nozzle and adapted to heat the guided in the outlet nozzle strand-like material to a predetermined temperature.
  • a heating means which, for example, an induction loop and / or a current-energizing energizing device and / or a hot gas device and which preferably in the feed direction of the strand-like Guts arranged at least in front of the outlet nozzle and adapted to heat the guided in the outlet nozzle strand-like material to a predetermined temperature.
  • the temperature is controlled in the process according to the invention via a temperature adjusting device.
  • the temperature adjustment device adjusts or regulates the temperature of the strand-shaped material to a predetermined desired value.
  • the winding device preferably has a temperature detection device for measuring the temperature of the strand-shaped material. This continuously detects the temperature of the strand-shaped material, which is taken from the temperature setting as the actual value and compared with a target value. The temperature adjusting device then calculates a manipulated variable from this comparison and possibly changes the setting of the heating means in order to set the predetermined setpoint temperature.
  • Wickerlvorettivocardium shown as an example 100 has a receptacle (not shown) for mounting the bobbin 2. From a Drahtauslassdüse a strand-shaped winding material 1 (hereinafter not limited to wire) in a feed direction Z through an outlet nozzle 103 and wound in the feed direction Z behind the outlet nozzle 103 onto the winding body 2 by relatively moving the nozzle 103 and the winding body receptacle.
  • a strand-shaped winding material 1 hereinafter not limited to wire
  • a heating means 102 is provided, which in the example shown is designed as an induction loop 102.
  • the induction loop is electrically powered by a feeder 105 and generates a magnetic field.
  • the wire 1 passes through this magnetic field and is thereby heated and the heated portion 1 'of the wire is wound onto the winding body.
  • the induction loop is a tube which is flowed through by a fluid, in particular water, for cooling.
  • the induced in the wire 1, 1 'temperature is adjusted to a desired value.
  • This setpoint is specified by the user, depending on the material properties of the wire or winding material and the desired fill factor.
  • the actual temperature is detected by a measuring device 104. This is provided in the example shown approximately at the height of the induction loop 102, but may just as well be positioned approximately at the outlet of the outlet nozzle 103 to detect the actual temperature immediately before winding the heated wire 1 'on the winding body 2.
  • a manipulated variable is determined, which then, if appropriate, the energization of the induction loop 102 or, in general, the amount of energy transmitted by the heating means adapts accordingly and adjusts the temperature of the wire to the specified setpoint.
EP14004356.3A 2014-12-22 2014-12-22 Procédé d'enroulement et dispositif d'enroulement associé Withdrawn EP3038119A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14004356.3A EP3038119A1 (fr) 2014-12-22 2014-12-22 Procédé d'enroulement et dispositif d'enroulement associé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14004356.3A EP3038119A1 (fr) 2014-12-22 2014-12-22 Procédé d'enroulement et dispositif d'enroulement associé

Publications (1)

Publication Number Publication Date
EP3038119A1 true EP3038119A1 (fr) 2016-06-29

Family

ID=52231794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14004356.3A Withdrawn EP3038119A1 (fr) 2014-12-22 2014-12-22 Procédé d'enroulement et dispositif d'enroulement associé

Country Status (1)

Country Link
EP (1) EP3038119A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1489676A (fr) * 1966-08-18 1967-07-21 Licentia Gmbh Procédé de fabrication d'enroulements de machines électriques
FR2013949A1 (fr) * 1968-07-30 1970-04-10 Licentia Gmbh
DE4331621C1 (de) * 1993-09-17 1994-10-20 Grundig Emv Verfahren und Vorrichtung zur Erzeugung von Innenwicklungen in einer Innennut eines ringförmigen Körpers, insb. eines Drehübertragers
US5584438A (en) * 1991-11-15 1996-12-17 Firma Asta Elektrodraht Gmbh Process and device for producing a transformer winding
WO2004049546A1 (fr) * 2002-11-25 2004-06-10 Kabushiki Kaisha Yaskawa Denki Bobine a noyau a air plat et procede de fabrication de celle-ci
EP1555735A1 (fr) * 2002-10-22 2005-07-20 Mitsubishi Denki Kabushiki Kaisha Rotor pour machine dynamo-electrique
EP2309626A1 (fr) 2009-10-12 2011-04-13 Aumann GMBH Procédé d'enroulement, notamment pour enrouler de bobines électriques
US20130223476A1 (en) * 2012-02-28 2013-08-29 Sikora Ag Methods and devices for measuring the temperature of a strand-like material

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1489676A (fr) * 1966-08-18 1967-07-21 Licentia Gmbh Procédé de fabrication d'enroulements de machines électriques
FR2013949A1 (fr) * 1968-07-30 1970-04-10 Licentia Gmbh
US5584438A (en) * 1991-11-15 1996-12-17 Firma Asta Elektrodraht Gmbh Process and device for producing a transformer winding
DE4331621C1 (de) * 1993-09-17 1994-10-20 Grundig Emv Verfahren und Vorrichtung zur Erzeugung von Innenwicklungen in einer Innennut eines ringförmigen Körpers, insb. eines Drehübertragers
EP1555735A1 (fr) * 2002-10-22 2005-07-20 Mitsubishi Denki Kabushiki Kaisha Rotor pour machine dynamo-electrique
WO2004049546A1 (fr) * 2002-11-25 2004-06-10 Kabushiki Kaisha Yaskawa Denki Bobine a noyau a air plat et procede de fabrication de celle-ci
EP2309626A1 (fr) 2009-10-12 2011-04-13 Aumann GMBH Procédé d'enroulement, notamment pour enrouler de bobines électriques
US20130223476A1 (en) * 2012-02-28 2013-08-29 Sikora Ag Methods and devices for measuring the temperature of a strand-like material

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