EP1552593A1 - Enrouleuse et procede pour produire un enroulement - Google Patents

Enrouleuse et procede pour produire un enroulement

Info

Publication number
EP1552593A1
EP1552593A1 EP03770909A EP03770909A EP1552593A1 EP 1552593 A1 EP1552593 A1 EP 1552593A1 EP 03770909 A EP03770909 A EP 03770909A EP 03770909 A EP03770909 A EP 03770909A EP 1552593 A1 EP1552593 A1 EP 1552593A1
Authority
EP
European Patent Office
Prior art keywords
winding
coil
template
wire
winding template
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Withdrawn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
EP03770909A
Other languages
German (de)
English (en)
Inventor
Wolfgang Stroebel
Roland Kirschner
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 EP1552593A1 publication Critical patent/EP1552593A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings
    • H02K15/0442—Loop windings
    • H02K15/045—Form wound coils
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings
    • H02K15/0442—Loop windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings
    • H02K15/0478—Wave windings, undulated windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings
    • H02K15/0478—Wave windings, undulated windings
    • H02K15/0485—Wave windings, undulated windings manufactured by shaping an annular winding
    • 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
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49012—Rotor
    • 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

Definitions

  • the invention relates to a winding machine and a method for producing a winding according to the features of the independent claims.
  • a wire is wound in more or less loops around a winding carrier or a coil. After the predetermined number of windings, the winding wire is cut, the individual coil is removed and usually mounted on a stator tooth provided for this purpose. If this has been done, for example, for a multi-pole stator, for example with 36 individual coils, a total of 72 wire ends of the individual coils are to be connected in the desired manner. Not only is the outlay for producing the individual coils large, but the outlay on connection for producing the desired connection of the stator winding is also disproportionately high.
  • a winding machine is provided with a carrier device for winding a winding for an electrical machine, which has at least one group of a winding template and an adjacent deflection element, and wherein the winding template and the adjacent deflection element are displaceable relative to one another
  • a carrier device for winding a winding for an electrical machine which has at least one group of a winding template and an adjacent deflection element, and wherein the winding template and the adjacent deflection element are displaceable relative to one another
  • a last winding template is connected to a series of groups, this enables a coil or winding which has a first or a last coil or winding at its respective ends. Since the same partial voltage is usually generated in each coil, the wire start and the wire end of an entire phase winding lie on one side.
  • the circuit effort for the individual phases, e.g. with a delta connection or a star connection and also with a rectifier is low.
  • the carrier device can be rotated about an axis of rotation.
  • This rotatability enables a particularly effective winding of an entire phase, since the energy input is lower compared to an alternative device.
  • An alternative device would consist of the rotatability of the wire storage and the wire feed. However, the latter would have to rotate by a significantly larger radius, so that the load on these components would be significantly greater. The use of energy would also be increased.
  • the winding template can be set in such a way that the axis of rotation lies within the winding template to be wrapped. This enables economical winding of the individual windings or coils around the respective winding template with an approximately uniform wire conveying speed once during the wire feed or during the wire routing as well as on the winding jaw itself.
  • the winding template has a rim at a free end. If one initially assumes a relatively simple prismatic shape of a winding template, this board represents a protrusion at the free end. If this prismatic body of the winding template is wound, and if such a winding template is displaced in its axial position, this could be due to the interrelationships of the wire with other winding templates or deflection elements cause the wire to slide off the winding template to be moved. This is to be avoided in any case in order to obtain a proper winding process.
  • stator and its winding or their winding heads have a structure that is as uniform as possible in order to avoid asymmetries and thus keep cooling and flow differences as small as possible, for example. This was also accompanied by flow noises, which are also undesirable. For this reason it is envisaged that when the wire is wound around a winding template, a regular orderly build-up of an individual coil is achieved at an early stage.
  • at least one separating element is provided on the winding sides of the winding template, so that when a multiple wire is wound, the at least two wires finally come to lie on one another.
  • Such separating elements are, for example, that when using rectangular wires, that is to say wires whose cross-section corresponds approximately to a rectangle and whose winding or bending around the jaw sides occurs with the greatest possible bending resistance, an unwanted displacement of the deflection sides of a wire section must be avoided , Such a deflection or overturning of such a deflection wire has the result that the winding heads lead to an undesirably large radial structure with regard to their position in an electrical machine.
  • the winding machine has at least two stepped systems, each for at least one wire, in order to gradate the coil width within a coil.
  • the coil width here is the extension of a coil in the direction of the later axial direction of the electrical machine.
  • the stepped system achieves at least two wire sections which are located in different positions due to their axial extension and can be accommodated in the winding head in a space-saving manner. A winding head is kept small in its radial extent.
  • the at least one winding template consists of at least two mutually adjustable winding jaws.
  • a free board at the end of a winding template or separating elements can be adjusted so that this does not represent an obstacle to the removal of the winding from the winding template or templates.
  • either both winding jaws can be adjustable relative to each other or only one.
  • the winding process it is desirable that the winding process without Vibration problems of different types occur, so that the at least one wire can be fed via a wire guide that avoids such vibration problems.
  • the wire guide can be adjusted to a winding jaw in accordance with a winding progress.
  • This adjustment includes both an adjustment of the wire guide to a non-adjustable support element and an adjustment of the support element to the non-adjustable wire guide.
  • a method for producing a winding from at least one coil is provided, at least one wire being windable around a winding template, so that there is at least one wire arrangement with at least one first coil side, at least one first deflection side and at least one second coil side, wherein a winding template for wrapping is shifted from one level.
  • this method enables all-round accessibility of an individual winding template and, on the other hand, a winding can be produced by means of a tool which has several coils.
  • the measures listed in the following subclaims make advantageous developments of the method for producing a winding possible. After winding the coil, the winding template with the coil is pushed back into the plane, so that subsequent winding templates can be freely wound. In order to connect the individual coils in one piece, it is provided to wind the at least one wire after winding the first coil around an adjacent deflection element in order to produce a coil connector in a second direction of rotation.
  • FIG. 1 show exemplary embodiments of a winding machine according to the invention and a method for producing a winding.
  • FIG. 1 shows a schematic illustration of the winding machine in a side view
  • FIG. 2 shows the winding machine in an end view according to FIG. 1
  • Figure 3 shows a carrier device of the winding machine in a starting position in a
  • FIGS. 4A, 4B and 4C show different exemplary embodiments of a winding template 29,
  • FIG. 5 shows the carrier device in the first working position in a side view
  • FIG. 6 shows the carrier device in the first working position in a top view
  • FIG. 7 shows the carrier device in the first deflection position in a plan view
  • Figure 8 shows the carrier device after winding a first deflecting element in a
  • FIG. 9 shows the carrier device in a second working position, that is to say in the position in which the second coil is wound
  • Figure 11 shows the carrier device after winding a completely simple one
  • FIG. 12A and FIG. 12B a coil on a winding template in two side views
  • Figure 13 is a single coil with offset winding head
  • FIG. 15 a section of a winding template with double wire.
  • FIG. 1 shows a winding machine 20 with a carrier device 23 for winding a winding for an electrical machine.
  • the carrier device 23 is slidably fastened in a holder 26.
  • Both winding templates 29 and deflection elements 31 are fastened on the carrier device 23.
  • a first winding template 29.1 and a first adjacent deflection element 31.1 form a first group 34, which is at least necessary for the machine to function. In principle, the number of groups 34 is not restricted.
  • the winding template 29.1 and the adjacent deflecting element 31.1 can be moved relative to one another, as will be explained in more detail in the following figures.
  • Each winding template 29 is displaceable to a deflection element 31.
  • the carrier device 23 is rotatable about an axis of rotation 36.
  • the holder 26 is driven via a shaft 38, thereby dragging the carrier device 23 with it.
  • the axis of rotation 36 is displaceable in relation to the carrier device 23. In the specific exemplary embodiment, this means that the carrier device 23 can be displaced in the holder 26, so that the rotational axis 36, which is fixed per se, is displaced relative to the carrier device. In the illustration shown, the axis of rotation 36 is within the first winding template 29.1.
  • FIG. 2 shows the winding machine 20 known from FIG. 1 in a front view according to FIG. 1. At least one wire 41 can be fed to the winding machine 20 via a wire guide 40.
  • FIG. 3 shows a schematic view of an arrangement of three groups 34, each with a winding template 29 and a deflecting element 31.
  • the three groups in the example form a row, which is followed by a last winding template 29.4.
  • the winding template 29 and the deflection elements 31 are seated on the carrier device 23, which is shown in section here.
  • FIG. 4A shows a first exemplary embodiment of a winding template 29.
  • the winding template 29 consists of two winding jaws 45, which are seated on a jaw holder 48 and to which a wire end 42 (wire start) is fastened.
  • This embodiment of the winding template 29, or the winding jaws 45 shown there, have a rim 54 at a free end 51. The function of this board will be explained later.
  • the winding jaws 45 and thus the winding template 29 have at least one separating element 58 on their jaw sides 56.
  • the separating elements serve to be able to wind the wire (s) 41 at certain positions, for example to prevent the twisting of rectangular wires around themselves or in the direction of the wire, or in the case of a double round wire, that is to say, to avoid misalignment with one another when two round wires are wound at the same time See also FIG. 15. If a wire 41 has been wound around such a winding template 29, the individual wire windings 62 are located in grooves 60 arranged between the separating elements 58. Finally, the individual wire windings or fully wound coils of the individual winding templates 29 To be able to remove, it is necessary to remove the winding jaws 45 to move relative to each other. In this case, this means that the winding jaws 45 must be moved towards one another.
  • the separating elements 58 are so short or the grooves 60 are so shallow that the wire windings 62 emerge from the grooves 60 and finally leave them by simply pushing the winding jaws 45 towards one another, as is indicated by the double arrow.
  • the wire windings 62 have such a high inherent stability that their position hardly changes apart from the known elastic portion. After the winding jaws 45 have been pushed together and the wire end 42 has been released, a winding can be removed from its winding template 29.
  • FIG. 4B shows a further exemplary embodiment of a winding template 29 which is based on the example shown in FIG. 4A.
  • the known winding jaws 45 are present, which rest on the jaw holder 48.
  • the known separating elements 58 and grooves 60 are also provided on the cheek sides 56.
  • the winding template 29, however, has at least two stepped systems, each for at least one wire 41, in order to be able to gradate a coil width within a coil. These at least two graded systems are each formed by a groove base 65.
  • FIG. 4C shows a somewhat simpler exemplary embodiment of a winding template 29.
  • the winding template in turn consists of two winding jaws 45, each having a rim 54 at its free end 51.
  • the wire is wound around the winding template 29 without separating elements 58 or grooves 60.
  • simple round wire 41 for example, this can be done without any further requirements for the design of the winding.
  • the flange 54 is also necessary here in order to prevent the winding from slipping down unintentionally from the winding template 29.
  • the method for producing a winding from at least one coil is described below. In this context, further details of the machine are explained.
  • the winding template 29.1 is lifted or shifted out of a plane formed together with the further winding templates 29 and the deflection elements 31, see also FIG. 5.
  • the first The winding template 29.1 is located at the position of the axis of rotation 36.
  • the winding template 29.1 is displaced out of the plane so far that the lowermost groove 60 is above the remaining deflection elements 31 or winding templates 29.
  • the entire carrier device 23 already known from FIG. 1 with the holder 26 is rotated about the axis 36 by means of the shaft 38, the wire guide 40 being at least not rotated.
  • the wire is wound around the first winding template 29.1, so that there is at least one wire arrangement with at least one first coil side 68, at least one first deflection side 69 and at least one second coil side 68, see also FIG. 6.
  • the first winding template 29 or 29.1 is wrapped in a first direction of rotation to produce a first coil.
  • a first coil connector 70 is wound around the deflection element 31.1.
  • the second coil side 68 or its extension in the direction of the wire guide 40 is wound around the deflection element 31.1 by rotating it in a second direction opposite to the first, see also FIG. 7.
  • the axis of rotation 36 is wound on the deflection element 31.1. adjusted by moving the carrier device 23 in the holder 26.
  • the first winding template 29.1 is pushed back into the plane, see also FIG. 8.
  • the second winding template 29.2 - like the first winding template 29.1 - is shifted out of the plane, so that this winding template 29 can also be freely wrapped, see also FIG. 9.
  • the second winding template 29.2 is wound with a second coil, see above that in turn a first coil side 68, a first deflection side 69 and at least a second coil side 68 abuts or is wound around the winding template 29.2.
  • This wrapping process too the second winding template takes place in the first direction of rotation, here again the axis of rotation 36 is set to the second winding template 29.2, see also FIG. 10.
  • the winding template 29 and deflection elements 31 are wound in an analogous manner up to the last winding template 29.4 See also FIG. 11.
  • the winding shown in FIG. 11 is finished with the winding of the second coil side 68, so that the wire 41 can be cut.
  • the winding can then be removed from the winding templates 29 after the end of the winding process.
  • the winding template 29, as also shown in FIGS. 5 to 11, is equipped with a flange 54, the winding itself cannot simply be pulled down from the winding templates or deflection elements 31.
  • the undercuts between the ribs 54 and the wires 41 mean that at least one of the two winding jaws 45 of a winding template 29 is adjusted in order to remove the winding. By adjusting the winding jaws 45, they are located entirely within a winding, so that undercuts are eliminated and removal is easy.
  • the wire 41 is to be wound backwards but along the other side of the winding template 29 or the deflection element 31.
  • the processes described can be easily modified to produce a simple loop winding.
  • the first step as shown in FIG. 6, continues to wind the wire around the first winding template 29.1, whereby after the second coil side 68 is not immediately wound around the deflection element 1, but instead, for example five turns, a simple coil is completed around the winding template 29.1 see also FIG. 12A and FIG. 12B. Only then, as already described for FIG. 6, is a coil connector 70 produced by means of the deflecting element 31.1.
  • a single winding template 29 is wound around the desired number of turns, until a last second coil side 68 is wound on the last winding template 29 or 29.4 and the wire is then cut analogously to FIG. 11.
  • a single winding template 29 does not necessarily have to be pushed back into the plane to produce a coil connector 70. If or only a few windings are provided around a winding template 29, the distance from the upper side of a deflection element 31 is not too great, so that the wire between two coils would not be too long either. However, the larger or thicker a coil around a winding template 29, the more necessary it is to first push the winding template 29 with the coil back into the plane before winding around a deflection element 31. In order to remove a simple loop winding with several turns around a winding template 29, it is also necessary to adjust the winding jaws 45 to remove the winding from the winding machine.
  • the winding template 29 with the shoulders shown in FIG. 4B leads to a coil with an offset winding head 74, see also FIG. 13.
  • This offset winding head has the advantage that the deflection sides 69 can assume different positions, see also FIG. 14.
  • a section 77 of an electrical machine is shown in detail.
  • the axial offset of the deflection sides 69 makes it possible to reduce the radial extension of the winding head, which is related to the axis of rotation of a rotor of the electrical machine, and instead to enlarge it in the axial direction.
  • the radial direction is indicated by an arrow and the letter r
  • the axial direction is also identified by an arrow with the letter a.
  • the axially outer deflection sides 69 are bent in such a way that they are at least partially at the same radial height as the deflection sides 69 of the winding head arranged further inside.
  • winding template 29 and the deflection elements 31 are adjacent. Adjacent here means that a deflection element 31 follows after each winding template 29 until the arrangement ends with a last winding template 29 if required.
  • the deflection elements 31 and the winding template 29 are arranged in a straight row for reasons of practicality, other row shapes, for example slightly curved, circular or the like, of course also being suitable.
  • the winding machine according to the invention is not only suitable for processing profile wires 41 with, for example, a rectangular cross section, but of course also suitable for winding ordinary round wires 41, see also FIG. 4A.
  • the winding machine is particularly suitable for winding jaws 45 with separating elements 58 to be wound simultaneously with two round wires, possibly also with two rectangular wires.
  • the separating elements 58 bring about an unambiguous position assignment of the individual wires and prevent them from slipping, see also FIG. 15.
  • the relative position between the wire guide 40 and the winding template 29 changes as a result of the winding.
  • the wire guide 40 corresponds to a winding progress is adjustable to a winding jaw 45 or the winding template 29.
  • the deflecting elements 31 can also be constructed from two mutually displaceable deflecting jaws. This enables the winding to be removed easily in the case of particularly stubborn wire.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Coil Winding Methods And Apparatuses (AREA)

Abstract

La présente invention concerne une enrouleuse (20) comprenant un dispositif de support (23), qui est conçue pour assurer l'enroulement d'un enroulement pour une machine électrique. Ce dispositif de support (23) présente au moins un bloc (34) constitué d'un gabarit d'enroulement (29) et d'un élément déflecteur adjacent (31). Ledit gabarit d'enroulement (29) et ledit élément déflecteur adjacent (31) sont mobiles l'un par rapport à l'autre. La présente invention concerne également un procédé pour produire un enroulement à partir d'au moins une bobine. Ce procédé consiste à enrouler au moins un fil autour d'un gabarit d'enroulement (29), de façon à obtenir au moins un système de fil présentant au moins un premier côté de bobine (68), au moins un premier côté de déflexion (69) et au moins une seconde bobine (70), un gabarit d'enroulement (29) étant déplacé hors d'un plan afin d'assurer un réenroulement.
EP03770909A 2002-10-04 2003-10-06 Enrouleuse et procede pour produire un enroulement Withdrawn EP1552593A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10246423 2002-10-04
DE10246423A DE10246423A1 (de) 2002-10-04 2002-10-04 Wickelmaschine sowie Verfahren zur Herstellung einer Wicklung
PCT/DE2003/003324 WO2004034554A1 (fr) 2002-10-04 2003-10-06 Enrouleuse et procede pour produire un enroulement

Publications (1)

Publication Number Publication Date
EP1552593A1 true EP1552593A1 (fr) 2005-07-13

Family

ID=32010243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03770909A Withdrawn EP1552593A1 (fr) 2002-10-04 2003-10-06 Enrouleuse et procede pour produire un enroulement

Country Status (7)

Country Link
US (1) US7543774B2 (fr)
EP (1) EP1552593A1 (fr)
JP (1) JP4783015B2 (fr)
CN (1) CN100356664C (fr)
BR (1) BR0308680A (fr)
DE (1) DE10246423A1 (fr)
WO (1) WO2004034554A1 (fr)

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DE102018100016A1 (de) * 2018-01-02 2019-07-04 Elmotec Statomat Holding GmbH Verfahren und Vorrichtung zur Herstellung von Rotoren und Statoren einschließlich der Konfektionierung von Anschlussdrähten
WO2023208836A1 (fr) * 2022-04-25 2023-11-02 Rolls-Royce Deutschland Ltd & Co Kg Procédé pour produire un enroulement de bobine
DE102022127861A1 (de) 2022-04-25 2023-10-26 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Herstellung einer Spulenwicklung

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JP2006502574A (ja) 2006-01-19
JP4783015B2 (ja) 2011-09-28
WO2004034554A1 (fr) 2004-04-22
DE10246423A1 (de) 2004-04-15
CN1692539A (zh) 2005-11-02
CN100356664C (zh) 2007-12-19
US20050258296A1 (en) 2005-11-24
US7543774B2 (en) 2009-06-09
BR0308680A (pt) 2005-08-23

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