EP2380262A2 - Procédé pour produire un bobinage imbriqué réparti pour des systèmes polyphasés - Google Patents

Procédé pour produire un bobinage imbriqué réparti pour des systèmes polyphasés

Info

Publication number
EP2380262A2
EP2380262A2 EP09799101A EP09799101A EP2380262A2 EP 2380262 A2 EP2380262 A2 EP 2380262A2 EP 09799101 A EP09799101 A EP 09799101A EP 09799101 A EP09799101 A EP 09799101A EP 2380262 A2 EP2380262 A2 EP 2380262A2
Authority
EP
European Patent Office
Prior art keywords
loop
winding
coil
loops
sides
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Withdrawn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
EP09799101A
Other languages
German (de)
English (en)
Inventor
Klaus Herbold
Gerlinde Weber
Christoph Schwarzkopf
Helmut Kreuzer
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.)
SEG Automotive Germany 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 EP2380262A2 publication Critical patent/EP2380262A2/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Withdrawn legal-status Critical Current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
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/065—Windings consisting of complete sections, e.g. coils, waves
    • H02K15/066—Windings consisting of complete sections, e.g. coils, waves inserted perpendicularly to the axis of the slots or inter-polar channels
    • 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
    • H02K15/0464—Lap windings
    • 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
    • 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
    • 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
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core

Definitions

  • a stator core for an electric machine is known, which is manufactured in the so-called flat-pack technology.
  • individual strip-shaped slats are stacked congruently. It is thus formed an approximately cuboid, substantially flat stator iron, which has comb-like on one side the electromagnetically effective grooves and teeth, which are provided for the interaction with a rotor.
  • a separately prepared flat winding is used. This Flachunwicklung can be run as a simple or distributed loop or wave winding.
  • stator iron with winding is then bent around in a device to a circular stand round.
  • any existing winding overhangs which are initially not arranged in slots when inserting the winding in the stator iron, inserted into the corresponding groove.
  • the opposite after the round bending end faces of the stator iron are connected, for example by a welding process.
  • the procedure described is generally used for three-phase generators and is used in a current generator generation.
  • European Patent Application EP 1 494 337 A2 discloses a method for producing a two-layer loop winding for multiphase electrical machines from a wire bundle, wherein the wire bundle is wound onto a winding bar by winding a first loop of a first phase winding in a first step and subsequently inserting a first loop Loop connector of the first phase winding placed in a first direction and in a further step, a loop of another phase winding is wound over the loop connector.
  • the object of the invention is to describe a method for producing a continuously wound distributed loop winding for multiphase systems.
  • the distributed loop winding is wound continuously and is used in particular for a flat-pack stator, (see international publication WO 01/54254 A1).
  • FIGS. 2b and 2d are schematic side views of the loop winding of FIG.
  • Figures 2e and 2f are schematic side views of the loop winding of FIG.
  • Figures 4a and 4b show another embodiment of a winding in plan
  • FIG. 5 shows a first schematic side view of a loop winding with four
  • FIG. 6 shows a second schematic side view of a loop winding with four
  • FIG. 7 shows a third schematic side view of a loop winding with four
  • FIG. 8 shows a fourth schematic side view of a loop winding with four
  • Figures 9a to 9c a top and two side views of a loop winding with four loops (Figure 6). The two side views show two different
  • Figure 10 is a plan and two side views of a loop winding with four
  • Figure 11 is a plan and two side views of a loop winding with four
  • Figure 12 and Figure 13 show partial side views of the windings.
  • FIG. 1 shows a cross section through an electric machine 10, here in the embodiment as a generator or alternator, in particular three-phase alternator for motor vehicles, is shown.
  • This electric machine 10 has u. a. a two-part housing 13, which consists of a first bearing plate 13.1 and a second bearing plate 13.2.
  • the bearing plate 13.1 and the bearing plate 13.2 take in a so-called stator 16, on the one hand consists of a substantially annular stator iron 17, and in whose radially inwardly directed, axially extending grooves, a stator winding 18 is inserted.
  • This annular stator 16 surrounds with its radially inwardly directed grooved surface a rotor 20 which is formed as a claw-pole rotor.
  • the rotor 20 is u.a.
  • the rotor 20 is rotatably supported in the respective end shields 13.1 and 13.2, respectively, by means of a shaft 27 and one respective rolling bearing 28 located on each side of the rotor.
  • the rotor 20 has a total of two axial end faces, on each of which a fan 30 is attached.
  • This fan 30 consists essentially of a plate-shaped or disc-shaped portion, of the fan blades in emanate known manner.
  • These fans 30 serve to allow an air exchange between the outside of the electric machine 10 and the interior of the electric machine 10 via openings 40 in the end shields 13.1 and 13.2.
  • the openings 40 are provided essentially at the axial ends of the end shields 13.1 and 13.2, via which cooling air is sucked into the interior of the electric machine 10 by means of the fan 30.
  • This cooling air is accelerated by the rotation of the fan 30 radially outward, so that they can pass through the cool air-permeable winding overhang 45.
  • the cooling air takes after passing through the winding overhang 45 or after flowing around this winding overhang 45 a way to the outside radially, not shown here in this figure 1 openings.
  • FIG. 1 on the right side there is a protective cap 47, which protects various components against environmental influences.
  • this protective cap 47 covers, for example, a so-called slip ring assembly 49, which serves to supply a field winding 51 with exciter current.
  • a heat sink 53 Around this slip ring assembly 49 around a heat sink 53 is arranged, which acts as a positive heat sink here.
  • the bearing plate acts 13.2.
  • a connection plate 56 is arranged, which serves to connect arranged in the bearing plate 13.2 minus diodes 58 and not shown here in this illustration plus diodes in the heat sink 53 together and thus represent a known bridge circuit.
  • FIG. 2a shows two typical loops 60.
  • the loops 60 have loop sides 63 and 66 connected by loop side connectors 69, respectively.
  • Two adjacent loops 60 are connected by arcuate loop connectors 72.
  • This typical winding 75 will be explained in more detail by way of example.
  • a first loop side 63 is laid with a wire 81, which merges into a loop side connector 69 and from there continues in one piece to a second loop side 66.
  • the wire 81 transitions into a second loop side connector 69.
  • the next section is followed by a loop side 63 which lies on the first loop side 63 or is arranged above it, FIG. 2b.
  • the winding 75 continues with a loop side connector 69 disposed over the first loop side connector 69.
  • a fourth loop side 66 integrally connects, is disposed over the second loop side 66 and merges into the loop connector 72.
  • the second loop 60 connects directly to a loop side 63.
  • the second loop 60 has the same structure and ends with a strand end 84, an extended loop side 66.
  • FIG. 2b shows a schematic side view of the winding 75.
  • the loop sides 66 of the second loop 60 are rotated perpendicularly to the linking direction R or folded around a folding axis 85 such that at least one loop side 66 of the one first loop 60 is arranged next to at least one loop side 66 of another loop 60, that the loop sides 66 are adjacent, so that the loop sides 66 and 63 are arranged so that they later fit into a groove of a stator iron.
  • no special order must be sought.
  • part or all of the loop pages that are later to be placed in a groove can also be directly adjacent to one another.
  • a folding axis 85 is at a position of a loop side in all the examples described here.
  • the loops 60 are designed with two turns. Of course, more turns are possible, for example 3, 4, 5, 6 or more.
  • the four coil sides 66 are laid in a square manner, so that in the direction R two coil sides 66 next to each other and thus in two rows (multi-row, there are also three or more rows possible) and in direction r turn at least two coil sides 66 next to each other.
  • the direction r corresponds to a direction which, on the one hand, is oriented perpendicular to the linking direction R but also perpendicular to a loop side 63 or 66 (direction of the wire profile center axis).
  • the four coil sides 66 are laid in a single-row arrangement (relative to stator bars in the radial direction), so that only one coil side 66 is arranged in direction R, but at least two coil sides 66 in direction r - the two middle ones Coil sides 66 - lie next to each other.
  • the direction r corresponds to a direction, on the one hand perpendicular to the linking direction R but also perpendicular to a loop side 63 and 66 is oriented (direction of the wire profile central axis).
  • FIG. 2c thus shows a winding 75, which is a distributed loop winding.
  • a feature of the distribution is that, starting from a later groove position (the location where the loop sides 66 are located), the coil side connectors 69 are distributed both in the direction R and in the opposite direction.
  • a method for producing a distributed loop winding for multiphase systems, in particular for alternators in a first step, a chain of loops 60 with a concatenation R is formed, characterized in that in a further step, at least one loop 60 is rotated with its loop sides 63, 66 perpendicular to the linking direction R that at least one loop side 66 of the one loop 60 so at least one loop side 66 of another loop 60 arranged is that loop sides 66 are immediately adjacent to each other.
  • the loop connectors 72 are all arranged on the same side of the flat pincer.
  • FIG. 3a a flat stator iron 90 is shown in a schematic manner.
  • Each stator iron 90 is laminated as usual and has on one side 93 of the stator iron 90 open grooves 96, in each of which a winding 75 is inserted.
  • the winding 75 is inserted as shown in FIG. 2c with the arrangement according to FIG. 2d; in FIG. 3c, the winding 75 is shown in FIG. 2e with FIG. 2f.
  • the loop sides 63 of the second loop 60 form a so-called winding overhang 99, which is initially arranged outside the stator iron 90.
  • stator overhang 99 is to be moved in direction r, so that the winding overhang 99 is not positioned directly opposite an end face 102 of the stator iron 90.
  • the respective stator iron 90 is bent around and either shortly before completion of the round bending or after the round bending in the not completely filled groove 96 (in Figure 3a and 3c left) inserted.
  • a stator or stator 16 is formed, as in each case in FIGS. 3b and 3d the simplest variant is shown.
  • the stator 16 each has a central opening 105 which is suitable for receiving a rotor 20.
  • FIG. 4 a shows a winding 75 which, in principle, is constructed like the winding 75 shown in FIG. 2 a.
  • the difference lies in the number of coils 60, which is indeed even here, but much higher.
  • the number may for example be twelve or sixteen, so that a twelve-pole or sixteen-pole winding 75 results.
  • a portion 108 of the coil 75 is relatively rotated to another portion 111 of the coil 75 such that the portion 108 and the portion 111 of the coil 75 enclose therebetween an angle ⁇ during rotation.
  • loop connectors 72 are made to be multi-layered between two loops 60, s. a. FIG. 4b, FIG. 4d
  • the sum of the loops 60 in parts 108 and 111 should be the same size.
  • the strand beginning 78 and the strand end 84 lie apart after turning or folding in all exemplary embodiments of a pole width P or loops, s. a. FIGS. 2a, 4c, 9, 10, 11.
  • Variants of this method come about by the fact that the winding 75 both has at least four loops 60 on the one hand and, on the other hand, outer parts 108 and 114 of the winding 75 are rotated relative to a middle part 111. Examples can be found here in Figures 6, 7, 8, 9, 10 and 11. The structure of the windings 75 shown in Figures 6 and 7 is as shown in Figure 4a and Figure 4b and described accordingly. According to FIG.
  • each two parts (108, 111, 111, 114) of the winding (75) are relatively rotated relative to one another, each two parts (108, 111, 111, 114 ) of the winding (75) while rotating between them each include an angle ( ⁇ ; ß) and at least three parts (108, 111, 114) are involved.
  • 6 shows a so-called Z-variant, since during the execution of this process, in between and in a side view, a "Z" shape or double angular shape of the chain of loops 60, see also Figure 5 results on opposite sides of the part 111.
  • the parts 108 and 114 can each also be rotated in the other direction.
  • FIGS. 9a and 9b show both a plan view of a winding 75 and a schematic side view of the same winding 75, after which the winding 75 or its parts 108 and 114 have been correspondingly rotated as shown in FIG.
  • the rotated loop sides 63 and 66 are now positioned in a double-row arrangement with the other loop sides 63 and 66 remaining in place.
  • the loop sides can also be arranged in a single-row arrangement, FIG. 9c.
  • FIGS. 10a and 10b show both a plan view of a winding 75 and a schematic side view of the same winding 75, after which the winding 75 or its parts 108 and 114 have been correspondingly rotated as shown in FIG.
  • the rotated loop sides 63 and 66 are with the other loop pages 63 and 66 remaining in place are now positioned in a double-row arrangement.
  • the loop sides can also be arranged in a single-row arrangement, FIG. 10c.
  • the windings 75 shown in FIGS. 6, 7, 8, 9, 10 and 11 are only examples, especially as regards the lengths, ie. H. Numbers of loops 60 are concerned.
  • a winding 75 having two loops 60 in the part 111 (including the loop comprising the loop sides 66 at angles ⁇ ) and one loop 60 in the parts 108 and 114, respectively.
  • the sum of loops 60 in parts 108 and 114 should be equal to the number of loops 60 in part 111.
  • FIGS. 2, 4 and 5 (simply turning a part 108 to a part 111 around a folding axis 85): either the number of loops 60 of the part 108 is even and the number of loops 60 of the part 111 are odd or in reverse, whereupon the number of loops 60 of the part 108 is odd and the number of loops 60 of the part 111 is even.
  • a loop 60 with an even number of turns and a subsequent loop 60 with an odd number of turns can also be alternately repeated. According to a modification of FIG.
  • the second loop 60 would then have, for example, three windings each with three loop sides 63 and 66, so that at the groove position I before insertion into the stator iron 90 and round bending of the stator iron 90, two loop sides 63 at the groove position II five Loop sides 66 and in the winding overhang 99 at slot position I would again result in two loop sides 63.
  • FIGS. 4 and 5 The same applies to an embodiment according to FIGS. 4 and 5.
  • a process according to FIGS. 6, 7 and 8 (two turns within the winding 75 with a rotation of the part 108 to a part 111 about a folding axis 85 and a rotation of the part 114 about a folding axis 85 to a part 111): either the number of Loops 60 of parts 108 and 114 are even and the number of loops 60 of part 111 are odd or totally reversed, whereupon the number of loops 60 of parts 108 and 114 is odd and the number of loops 60 of part 111 is even.
  • nNut 5.
  • nNut 6.
  • nNut 7.
  • nNut 7.
  • nNut 7.
  • nNut 8.
  • the winding heads of the distributed conductor winding with even number of conductors are arranged evenly on the stator iron. This almost symmetrical structure of the winding heads results over the length of the stator iron an approximately constant bending resistance in the entire flat package. This leads to improved roundness in the finished curved cylindrical ring stand.
  • the distributed loop winding is constructed almost symmetrically along the flat package. This results in identical winding heads on the A and B sides free of impurities which, for example, audibly influence an air flow.
  • the winding heads for the distributed loop winding with a straight number of conductors nNut are arranged uniformly over the longitudinal extent of the flat package.
  • the winding heads for the distributed loop winding with odd number of conductors are alternating from coil to coil.
  • FIGS. 2d, 2f. 3a, 3c, 4c, 4d, 9a, 9b, 9c, 10a, 10b, 10c, IIa, IIb, llc shows, results in a two-layer loop winding, the flat due to their flatness for a flat package, or as a flat Ständereisen 90 described disc pack is suitable.
  • loop side connectors 69 of one part rest on loop connectors 72 of another part.
  • the winding 75 can be converted at any desired loop into a second position.
  • This second layer is composed of half of the loops 60 of the winding 75 (the winding strand).
  • strand beginning 78 (winding start)
  • strand end 84 (winding end) meet at the same loop 60 (coil) (see FIGS. 2c, 2f, 4c, 5, 6, 7, 8, 9, 10, 11).
  • FIG. 12 shows a winding 75 with three windings per loop 60 (only one phase winding). Both the loops 60 of the part 111 and the part 108 have the same number of turns, so that the number of conductors in the winding head at the position of each coil (exception between the terminals) is the same. Here it is the loop side connectors 69 of a loop 60 and a loop connector 72. If a multiple wire or double wire is used, the number is twice as high.
  • loop connectors (72) between two loops (60) are designed to be multi-layered.
  • the number of spool heads per spool is A-C, a "drive side, pulley side) and B - (" b "brushes) side identical.
  • the number of coil bobbins in the winding strand is constant.
  • the number of coil bobbins is alternating from loop to loop in the winding string.
  • a coil has A- and B-side an even number of coil ends.
  • the adjacent coil has A- and B-side coil ends, the number of which differs about a coil head from the former coil, see also Figure 13.
  • the part 111 has only two turns per loop, while the part 108 has three turns per loop.
  • the n-1 conductors of a winding strand part go on A- and B-side in parallel coil heads of a coil.
  • a ladder goes in A- or B-side another coil head of this coil over.
  • B- or A-side of this conductor opens as a coil connector in a coil head of the adjacent coil.
  • n 4 turn rounds of a single wire for each loop of the two superposed winding strand parts
  • These four wires go on the A side in each case four parallel coil heads of a coil.
  • B-side lead the wires in three parallel coil heads of the same coil and in a coil connector consisting of a coil head which runs parallel to the coil heads of the adjacent coil.
  • the B-side is shown in FIGS. 12 and 13.
  • a method is disclosed according to FIGS. 12 and 13, according to which a sum of two loop connections 72 and loop side connectors 69 connecting two specific slots 96 is even (FIG. 12) or odd (FIG. 13, left).
  • a method is disclosed according to which a sum of two loop connections 72 and loop side connectors 69 connecting two specific slots 96 is odd (left, 3), in the case of a directly adjacent pole P of the phase winding the sum is even (right, 4).
  • a loop winding strand consists of at least one winding wire. If the winding strand consists of more than one wire, the wires are guided in parallel. The winding start and the winding end of the multi-wire match. The single or multiple wire is wound in loops in one direction. The winding for a strand is continuous and not interrupted.
  • a ladder consists of at least one wire.
  • the wire can be designed both as a single wire with only one wire or as a multiple wire with at least two parallel wires.

Landscapes

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

Abstract

L'invention concerne un procédé pour produire un bobinage imbriqué réparti pour des systèmes polyphasés, en particulier pour des alternateurs, dans une première étape duquel on forme une chaîne de boucles (60) ayant un sens d'enchaînement (R). Le procédé selon l'invention est caractérisé en ce que, lors d'une autre étape, on fait tourner au moins une boucle (60) avec ses côtés (66) perpendiculairement au sens d'enchaînement (R) de sorte qu'au moins un côté (66) de la boucle (60) se place de telle manière à côté d'au moins un côté (66) d'une autre boucle (60) que le côté (66) de la boucle (60) et le côté (66) de l'autre boucle (60) sont placés à une position correspondant à une position d'encoche.
EP09799101A 2008-12-19 2009-12-21 Procédé pour produire un bobinage imbriqué réparti pour des systèmes polyphasés Withdrawn EP2380262A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008054999 2008-12-19
PCT/EP2009/067696 WO2010070148A2 (fr) 2008-12-19 2009-12-21 Procédé pour produire un bobinage imbriqué réparti pour des systèmes polyphasés

Publications (1)

Publication Number Publication Date
EP2380262A2 true EP2380262A2 (fr) 2011-10-26

Family

ID=42269157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09799101A Withdrawn EP2380262A2 (fr) 2008-12-19 2009-12-21 Procédé pour produire un bobinage imbriqué réparti pour des systèmes polyphasés

Country Status (4)

Country Link
US (1) US8914967B2 (fr)
EP (1) EP2380262A2 (fr)
CN (1) CN102246398B (fr)
WO (1) WO2010070148A2 (fr)

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JP6409367B2 (ja) * 2014-06-30 2018-10-24 アイシン精機株式会社 回転電機およびその製造方法
JP6405748B2 (ja) * 2014-06-30 2018-10-17 アイシン精機株式会社 回転電機
WO2017038707A1 (fr) * 2015-08-28 2017-03-09 アイシン・エィ・ダブリュ株式会社 Procédé de fabrication de stator, et procédé de fabrication de machine électrique tournante
DE102019132681A1 (de) * 2019-08-08 2021-02-11 stoba e-Systems GmbH Elektromotor und Stator mit mehrfachbelegten Nuten
CN111161902B (zh) * 2020-01-17 2020-09-22 桂林狮达技术股份有限公司 多相绕组偏转扫描装置的控制方法

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Also Published As

Publication number Publication date
CN102246398B (zh) 2014-09-24
WO2010070148A2 (fr) 2010-06-24
CN102246398A (zh) 2011-11-16
US20110302767A1 (en) 2011-12-15
WO2010070148A3 (fr) 2011-02-24
US8914967B2 (en) 2014-12-23

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