EP2179493A2 - Procédé et dispositif de fabrication d'un enroulement électrique - Google Patents

Procédé et dispositif de fabrication d'un enroulement électrique

Info

Publication number
EP2179493A2
EP2179493A2 EP08774319A EP08774319A EP2179493A2 EP 2179493 A2 EP2179493 A2 EP 2179493A2 EP 08774319 A EP08774319 A EP 08774319A EP 08774319 A EP08774319 A EP 08774319A EP 2179493 A2 EP2179493 A2 EP 2179493A2
Authority
EP
European Patent Office
Prior art keywords
winding
template
translation tool
wire
turns
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Withdrawn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
EP08774319A
Other languages
German (de)
English (en)
Inventor
Stefan Ossenkopp
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2179493A2 publication Critical patent/EP2179493A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines
    • H02K15/043—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings prior to their mounting into the machines winding flat conductive wires or sheets
    • H02K15/0431—Concentrated windings

Definitions

  • the invention is based on a method and a device for producing an electrical winding for an electrical machine according to the preamble of the independent claims.
  • the winding device has a flyer arm, by means of which the winding wire is wound around the stationary rotor.
  • a flyer winding method it is disadvantageous that twisting of the winding wire occurs, whereby the groove filling factor of the electric machine can only be increased to a limited extent. For example, if separate individual coils are wound for a stator by means of flyer wrapping, the twists of the winding wire lead to jamming of the coils in the feed process into the slots of the stator.
  • the inventive method and apparatus according to the invention with the features of the independent claims have the advantage that by the crossing-free winding of the winding wire on a winding template and the automated stripping on a translation tool of the feed process of the turns into the grooves of a Stators or rotor is significantly improved. Due to the parallel arrangement of the individual windings without twists of the winding wire can hereby achieve a very high Nutyoglliety for the stator or the rotor. Due to the automated approach of the winding template against a stop of the translation tool previously wound coils can be placed very accurately and quickly on the translation tool, the individual winding wires are arranged approximately parallel to each other.
  • the winding coils can be wound on the winding template by the winding template rotates while the wire guide moves the winding wire slowly along an axis transverse to the rotational movement of the winding template.
  • the winding wires without twists and crossovers can be arranged parallel to each other on the winding template.
  • the translation tool rotates synchronously during the Bewickeins the winding template with its rotational movement. This prevents that wound on the translation tool winding coil wound up again, or the winding wire is twisted, or sheared off.
  • the synchronous co-movement of the translation tool can be realized for example by an eccentric movement of the translation tool, such that the connecting wire between the winding coil mounted on the translation tool and the winding coil currently to be wound on the winding template undergoes the least possible movement stress.
  • An eccentric movement can be realized for example by means of a mechanical coupling gear between the winding template and the translation tool.
  • the relative movement between the translation tool and the wound template to be wound by means of an X-Y slide can be realized, on which the translation tool moves so that the connecting wire between the translation tool and the rotating winding template as possible undergoes no relative movement.
  • X-Y movement can be synchronized electronically with the rotational movement of the winding template, for example by means of electronically synchronized servo drives.
  • the winding wire is wound clean and parallel to the winding template, it is particularly favorable to fix the winding wire on the winding template and in particular to clamp the winding wire in the wire winder while the turns are pushed onto the translation tool.
  • the winding method according to the invention is particularly suitable for drawing a winding phase with a plurality of winding coils in the slots of the electrical machine, while advantageously several winding coils can be arranged on the translation tool that all winding coils are positioned by a single retraction movement in the correct grooves.
  • the individual winding coils can also be wound in opposite directions of rotation on the winding template.
  • the winding wire is clamped in the wire guide during the movement of the winding. As a result, the parallel wire windings are maintained in parallel.
  • the device according to the invention for producing an electrical winding is particularly suitable for carrying out the described production method according to the invention.
  • the winding template and the translation tool is advantageously automatically performed against each other, so that the turns can be pushed directly along the axial direction of the winding template on the corresponding receptacles of the translation tool.
  • This automatic stripping of the turns is ensured that they are arranged without twisting and without crossing on the recordings of the translation tool, in order then to be able to be drawn with the least possible friction in the grooves of the electric machine can.
  • the device has a synchronization between the rotational movement of the winding template and the co-movement of the translation tool. For a small number of turns this may be omitted if necessary.
  • a mechanically coupled gear, or an electronically synchronized adjustment is arranged, which moves the translation tool in a plane perpendicular to the axis of rotation of the winding template accordingly. This movement of the translation tool is designed for example as an eccentric movement, which prevents twisting and / or breaking off of the connecting wire between two winding coils.
  • the translation tool has an integrated collection tool that the turns moves directly into the grooves of the stator or rotor without further reaction.
  • FIG. 1 shows a longitudinal section through a winding device according to the invention
  • FIGS. 3 to 6 show different method steps of the winding method according to the invention.
  • Figure 1 is a device for automatically winding an electrical
  • the Winding template 16 preferably has an oval or circular circumference, wherein the axis of rotation 18 preferably extends through the center thereof.
  • the device 10 has a wire guide 44 through which one or more winding wires 46 are guided out of a reservoir 45.
  • the wire winder 44 is arranged stationary in the exemplary embodiment, wherein the wire runs from the wire winder to the rotatably arranged winding template 16. At the beginning of the winding of the turns 48 on the winding template, the winding wire 46 on the winding template 16 by means of a Clamping device 50 clamped.
  • a translation tool 20 is arranged, which can perform a synchronized to the rotational movement of the winding template 16 relative movement.
  • the translation tool 20 is mounted for example on a rotation axis 22, such that the
  • Translation tool 20 can perform an eccentric movement.
  • the approximately circular translation tool 20 is not in its center, but mounted eccentrically.
  • the axis of rotation of the winding template is located here over the Abstreifposition eccentric to the translation tool.
  • the synchronization takes place in this embodiment via a mechanical coupling gear 24 that transmits the rotational movement of the winding template 16 via the frame 26 to the axis of rotation 22.
  • the translation tool 20 has a plurality of receptacles 28 which are positioned approximately concentric with the winding template 16.
  • different receptacles 28 can be arranged axially opposite to the winding template 16.
  • the receptacle 28 is formed, for example, by a plurality of fixing pins 30 in order to receive corresponding winding coils 32.
  • Translation tool 20 a rotational movement about the rotation axis 22 of such that the point 36 moves on the dashed line shown 37.
  • Winding coil 32 and a newly wound on the winding template 16 winding coil 33 minimized so that a twisting of the winding wire 40 or a shearing thereof is reliably prevented.
  • the translation tool 20 can be rotated on a second axis of rotation 23 about the center 21 to the different shots 28 coaxial opposite to the winding template 16 to position.
  • the winding template 16 is moved axially against the translation tool 20 until the winding template 16 and a receptacle 28 of the translation tool 20 axially touching each other.
  • the winding coil 33 is pushed by a scraper 42 on the receptacle 28 by the scraper 42 in Figure 1, the winding coil 33 axially pushes down.
  • the scraper 42 is adjusted axially, for example by means of a servo drive.
  • FIG. 3 shows the winding method in which a plurality of winding wires 46 are wound on the winding template 16.
  • the uninterrupted windings 48 form a winding coil 32, which is connected to the already stored in the translation tool 20 winding coil 32 through the connecting wire 40.
  • Connecting wire 40 are fixed to the winding template 16 by means of the clamping device 50, after which the winding wires 46 are wound onto the winding template 16 by the rotation of the winding template 16.
  • the translation tool 20 performs a rotational movement about the winding template 16, such that the
  • Bonding wire 40 is mechanically stressed as little as possible.
  • the center point 21 of the translation tool moves approximately with the circumferential line 17 of the winding template.
  • the winding template 16 has an axial distance 52 to the receptacle 28 to allow rotation of the winding template 16.
  • FIG. 4 all of the winding coils 32 of a winding phase 34 have been wound up and already pushed onto the translation tool 20 in a coherent manner.
  • the arrangement of the winding coils 32 on the receptacles 28 corresponds to the electrical design of a stator 60 or rotor of the electrical
  • Each winding coil 32 is wound around two adjacent fixing pins 30 near the center 21 and around an outer fixing pin 30 on the outer periphery of the translation tool 20.
  • a draw-in tool 54 is shown, which is formed separately from the translation tool 20.
  • the Receivers 28 of the translation tool 20 is applied axially to the insertion tool 54 and the winding coils 32 are pushed axially onto the insertion tool 54.
  • the translation tool 20, for example moves axially against the insertion tool 54, that the fixing pins 30 engage in the insertion tool 54.
  • the insertion tool 54 equipped with the winding coils 32 is inserted into the stator 60 of the electric machine 12 in such a way that the winding coils 32 are inserted into corresponding slots 62 of the stator.
  • the grooves 62 are previously lined in the exemplary embodiment with an insulating member 64 so that in addition to an insulating varnish 66 of the winding wire 46, an additional insulating layer is mounted between the winding coils 32 and the stator 60.
  • the translation tool 20 is also part of the Einziehtechnikmaschines 54, wherein the
  • Winding coils 32 on the translation tool 20 and the winding coil 33 is not affected mechanically on the winding template 16.
  • the translation tool 20 and retracting tool 54 may be implemented as separate or combined assemblies.
  • either the winding template 16 axially against a stop of the translation tool 20, or the translation tool 20 are axially displaced against a stop of the winding template 16 to strip the windings 48.
  • the winding method according to the invention is used for the production of a stator 60 of an electric motor 12, which serves for example for adjusting moving parts in the motor vehicle.
  • a stator with a high slot fill factor is suitable for a brushlessly commutated electric motor, as used, for example, for electric power steering systems or blowers in motor vehicles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Procédé et dispositif de fabrication d'un enroulement (14) pour une machine électrique (12) avec les étapes suivantes : enroulement sans croisement de plusieurs spires (48) d'un fil d'enroulement (46) sur un gabarit d'enroulement (16) par un mouvement de rotation entre un guide-fil (44) recevant le fil d'enroulement (46) et le gabarit d'enroulement (16) ; décalage en opposition axiale du gabarit d'enroulement (16) et d'un outil de transmission (20) perpendiculaire au mouvement de rotation ; retrait des spires (48) du gabarit d'enroulement (16) sur l'outil de transmission (20) ; prise des spires (48) dans la direction axiale dans les rainures (62) d'un rotor ou d'un stator (60) de la machine électrique (12).
EP08774319A 2007-08-14 2008-06-26 Procédé et dispositif de fabrication d'un enroulement électrique Withdrawn EP2179493A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007038429A DE102007038429A1 (de) 2007-08-14 2007-08-14 Verfahren und Vorrichtung zur Herstellung einer elektrischen Wicklung
PCT/EP2008/058133 WO2009021769A2 (fr) 2007-08-14 2008-06-26 Procédé et dispositif de fabrication d'un enroulement électrique

Publications (1)

Publication Number Publication Date
EP2179493A2 true EP2179493A2 (fr) 2010-04-28

Family

ID=40266171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08774319A Withdrawn EP2179493A2 (fr) 2007-08-14 2008-06-26 Procédé et dispositif de fabrication d'un enroulement électrique

Country Status (3)

Country Link
EP (1) EP2179493A2 (fr)
DE (1) DE102007038429A1 (fr)
WO (1) WO2009021769A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6203785B2 (ja) * 2015-06-25 2017-09-27 ファナック株式会社 ８の字状の連結コイルを有する電動機とその製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024219A1 (de) * 1980-06-27 1982-01-21 Balzer & Droell Gmbh Vorrichtung zum wickeln von spulen fuer elektrische maschinen
JPS60152260A (ja) * 1984-01-17 1985-08-10 Mitsubishi Electric Corp コイル巻線機
US5232026A (en) * 1991-07-19 1993-08-03 Statomat Spezialmaschinen Gmbh Method and apparatus for the winding of electric machine coils comprising parallel wires
EP0574841A1 (fr) * 1992-06-15 1993-12-22 ELMOTEC GmbH Procédé et dispositif pour fabriquer des bobinages de stators ou de rotors de machines électriques au moyen de fils parallèles
US6349895B1 (en) 1998-11-20 2002-02-26 Axis Usa, Inc. Changeable flyer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009021769A2 *

Also Published As

Publication number Publication date
WO2009021769A2 (fr) 2009-02-19
WO2009021769A3 (fr) 2009-04-02
DE102007038429A1 (de) 2009-02-19

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