WO2015132022A1 - Statorelement zum aufbau einer statoranordnung für eine elektrische maschine, statoranordnung und verfahren zum aufbau einer statoranordnung - Google Patents

Statorelement zum aufbau einer statoranordnung für eine elektrische maschine, statoranordnung und verfahren zum aufbau einer statoranordnung Download PDF

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Publication number
WO2015132022A1
WO2015132022A1 PCT/EP2015/051668 EP2015051668W WO2015132022A1 WO 2015132022 A1 WO2015132022 A1 WO 2015132022A1 EP 2015051668 W EP2015051668 W EP 2015051668W WO 2015132022 A1 WO2015132022 A1 WO 2015132022A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
elements
segment
assembly
segments
Prior art date
Application number
PCT/EP2015/051668
Other languages
German (de)
English (en)
Inventor
Matthias Steinle
Martin Braun
Jens BURGHAUS
Mickael Kremer
Keir Foster
Johannes Andrusch
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
Priority to EP15701962.1A priority Critical patent/EP3114753A1/fr
Publication of WO2015132022A1 publication Critical patent/WO2015132022A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/12—Machines characterised by the modularity of some components

Definitions

  • Stator element for constructing a Statoranordnunq for an electric machine, Statoranordnunq and method for constructing a Statoranordnunq
  • the present invention relates to electric machines for drive units of motor vehicles, in particular machines with disc rotors.
  • the invention further relates to stator arrangements for such electrical machines and to methods for producing stator arrangements.
  • Transverse flux machine with a disc rotor known.
  • permanent magnets are embedded at a constant distance from a rotation axis, which are magnetized in the circumferential direction.
  • Adjacent permanent magnets are magnetized opposite to each other, so that the mutually facing poles of two adjacent permanent magnets are each similar. The field lines between these similar poles are thus superimposed so that a rotor magnetic field propagating in the axial and radial directions from the pole gap is generated.
  • the disk rotor is arranged axially between two stator arrangements, each having a stator winding extending around a motor axis. To each of the stator windings offset radially inwardly and outwardly, each of the stator arrangements in the circumferential direction and projecting in the direction of the disc rotor inner and outer stator teeth.
  • a particularly cost-effective variant for the production of base bodies for machine components consists in a pressing and subsequent heat treatment of a soft magnetic powdery composite material (WMV, Soft Magnetic Composite, SMC).
  • WMV Soft Magnetic Composite
  • SMC Soft Magnetic Composite
  • Stator assemblies for disc rotor machines are typically too large and overly complex to produce with satisfactory economy and quality in terms of sufficient magnetic and mechanical properties by pressing and heat treating a WMV material.
  • Stator assembly for a multi-phase electric machine according to claim 1 and by a stator assembly for a multi-phase electric machine and a method for producing a stator assembly according to the independent claims.
  • a stator element for constructing a stator assembly for a multi-phase electric machine, in particular for a A disc rotor machine, the stator element comprising at least one stator tooth made by compression of a soft magnetic composite, the stator element being further adapted to be assembled with at least one further stator element to the stator assembly.
  • a stator arrangement for a multiphase electric machine, in particular for a machine with a disk rotor, wherein the stator arrangement comprises a plurality of stator elements designed as stator segments, wherein a plurality of the stator elements are joined at their tangential ends by gluing, welding, soldering, Crimping or by mechanical connections with rivets, pins or screws are connected together to form an annular stator assembly having projecting stator teeth in the axial direction.
  • a stator arrangement for a multi-phase electric machine, in particular for a machine with a disk rotor, wherein the stator arrangement has a plurality of stator elements formed as stator segments, wherein abutting tangential ends of adjacent stator segments are provided with corresponding steps, so that their overlapping areas interlock to form an annular stator assembly having axially projecting stator teeth.
  • a stator arrangement for a multi-phase electric machine, in particular for a machine with a disk rotor, wherein the stator arrangement has a plurality of stator elements formed as stator segments, wherein abutting tangential ends of adjacent stator segments are provided with corresponding steps, so that their overlapping areas for engaging the stator segments engage one another, wherein the at least one recess of the overlapping region of one of the plurality of stator segments wholly or partially receives the cross section of the base of at least one of the stator teeth of another of the plurality of stator segments.
  • a stator arrangement for a multi-phase electric machine, in particular for a machine with a disk rotor, wherein the stator arrangement comprises a plurality of stator elements formed as stator tooth elements, in particular the stator elements formed as stator tooth elements, wherein a main body consists of a soft magnetic Material is provided on, at or in which the
  • Stator leopardetti by force and / or form and / or material connection are arranged.
  • One idea of the above stator arrangements is to build them from individual stator elements.
  • the stator elements may be inserted into or interconnected with a body to provide an annular stator assembly having axially projecting stator teeth.
  • the connection of the stator elements with each other or with the base body can be achieved by a suitable fastening.
  • these can be produced in a simple manner.
  • the effort in the manufacture of a stator assembly of WMV material can be reduced because the stator segments represent significantly smaller components than the entire stator.
  • the stator element may be formed as a stator segment, which has a ring-segment-shaped return area and one or more stator teeth projecting on one side of the return area.
  • the stator segment may have a step with an overlap region at at least one tangential end in order to overlap a region of the side provided with the stator teeth or the side opposite thereto when assembled with the at least one further stator element formed as a stator segment.
  • stator segment has a step with an overlap region at at least one tangential end in order to overlap a region of the side provided with the stator teeth when assembled with the further stator segment, the overlap region having at least one recess with a contour a cross section the base of a stator tooth of another stator segment in whole or in part.
  • stator segment can have corresponding steps with respective overlapping areas at both tangential ends, so that when combined with a similar further stator segment, the steps intermesh with each other.
  • the overlapping region may be provided with at least one tab which projects radially inwards and / or outwards from the overlapping region.
  • stator element may be formed as a stator tooth element which is provided with a fastening device at its base, which corresponds to an end region associated with the return region, in order to be arranged on or in a soft-magnetic base plate designed as a return region.
  • the fastening device of the stator tooth element can connect to the base of the stator tooth to be formed and taper at its base and / or have a stop edge.
  • stator tooth elements can be attached to the base plate by gluing, welding, soldering and / or pressing.
  • the attachment means may be tapered and / or have a stop edge, wherein the attachment means are received in the body or pass therethrough.
  • a method for producing the above stator arrangement wherein a plurality of stator elements formed as stator segments at their tangential ends by gluing, welding, soldering, Pressing or using mechanical connections with rivets, pins or screws interconnected.
  • a method for producing the above stator arrangement wherein a plurality of stator elements designed as stator tooth elements are arranged on, on or in a basic body of a soft magnetic material by force, form and / or material connection.
  • Figures 1 a to 1 c representations of different views of a multi-phase electric machine with a disc rotor
  • Figure 2 is a perspective view of an annular stator assembly having protruding in the axial direction stator teeth
  • FIGS. 3a to 3c show different views of a stator element designed as a stator segment
  • Figure 4 shows a way of connecting stator segments by nesting
  • FIGS. 5a and 5b a way of fixing stator segments
  • FIG. 6 shows a section of a stator arrangement which passes through
  • FIGS. 7a to 7c show various possibilities for fastening
  • Stator tooth elements on a stator yoke ring Stator tooth elements on a stator yoke ring.
  • Figures 1 a, 1 b and 1 c show cross-sectional views of a three-phase electric machine 1, which is formed in this embodiment as an electric machine with a disc rotor 2.
  • the electric machine 1 may correspond to a pancake machine such as a transverse flux machine.
  • 1 a shows a radial plan view of a cross section in the circumferential direction
  • FIG. 1 b shows a cross-sectional view in the tangential direction
  • FIG. 1 c shows a perspective view of a section of one of the stator arrangements 3.
  • the electric machine comprises two stator assemblies 3 between which the disk rotor 2 is rotatably disposed about an axis of rotation extending along an axial direction A.
  • the disc rotor 2 is formed of a magnetically and electrically non-conductive material, such as a carbon fiber composite material or the like, and includes an annular magnetically active device, e.g. in the form of embedded, annularly arranged, individual permanent magnets 4, annularly arranged, individual soft magnetic elements or a circumferential electrically conductive ring.
  • the permanent magnets 4 are provided along an annular magnetic ring arrangement in the disc rotor 2, the permanent magnets 4 in the magnetic ring arrangement being spaced apart in a circumferential direction U.
  • the polarization of the permanent magnets 4 is aligned in the magnetic ring assembly in the circumferential direction U, wherein the polarizations of each two circumferentially adjacent U permanent magnets 4 are opposite to each other, so that each poles of the same magnetic poles face each other.
  • the mutually in the circumferential direction U facing magnetic poles of the permanent magnets 4 form rotor poles with a resulting magnetic field, which is extends from the area between each two magnetic poles of the permanent magnets 4 in the radial direction R and axial direction A from the disc rotor 2.
  • each magnetic ring assembly can be preferably concentric.
  • the radial width of each magnetic ring assembly is substantially identical, and preferably the number of permanent magnets 4 in each of the magnetic ring assemblies is also the same.
  • stator assemblies 3 are arranged opposite one another, the disk rotor 2 being freely rotatably arranged between the stator arrangements 3 in such a way that the rotor poles formed by the permanent magnets 4 of the magnet ring arrangement extend between stator teeth 31 of the stator arrangements 3.
  • stator teeth 31 are arranged annularly in each of the stator assemblies 3 along a Stator leopardan whatsoever 36, so that the Stator leopardan extract 36 of both stator 3 are opposite to each other.
  • Stator leopardan extract 36 of both stator 3 preferably have the same radial width and face each other in the axial direction A.
  • the stator teeth 31 together with a magnetic return region 35 form a stator body of magnetically conductive material.
  • the stator teeth 31 are each in the axial direction A, d. H. in the direction of the axis of rotation of the disc rotor 2, protruding from the stator body, d. H. as projections, formed.
  • stator teeth 31 extend in the radial direction R as far as possible over the entire radial width of the permanent magnets 4 in the disk rotor 2, wherein the stator teeth 31 are spaced apart in the circumferential direction U by gaps 32 to therein winding strands of the stator windings 34 each having one or more winding wires (depending after number of turns).
  • Each stator assembly 3 has a number of separate ones
  • Stator windings 34 which corresponds to the number of phases of the machine 1.
  • the respective one stator associated windings 34 are arranged relative to the opposing stator 3 each offset in the circumferential direction U to each other.
  • the field lines in the air gap which result from the superimposition of the magnetic fields generated by the permanent magnets 4 in the disk rotor 2 and the stator windings 34 in the stator assemblies 3 and which cause the formation of the engine torque, substantially obliquely to the axial direction A and in the circumferential direction U inclined to the axial direction A, that is substantially transversely to the magnetization direction of the permanent magnets 4th
  • stator teeth 31 in the embodiment shown have an elongate cross-section (with respect to the axial direction A) in the radial direction R, which can taper inwardly in the radial direction R.
  • Radial inner and outer ends 37, 38 of the stator teeth 31 in the embodiment shown have an elongate cross-section (with respect to the axial direction A) in the radial direction R, which can taper inwardly in the radial direction R.
  • Stator teeth 31 may be rounded, so that the corresponding winding strand of the corresponding stator winding 34 can be applied when applied to the course of the rounding.
  • stator teeth 31 To magnetically separate stator teeth from each other and to receive the stator windings 34.
  • the winding strands of the stator windings 34 of the individual phases are looped around the stator teeth 31.
  • the height of the stator teeth 31 in the axial direction A is selected such that the winding strand of the corresponding stator winding 34 can be inserted at least for each phase. As illustrated in FIG. 1 c using the example of the three-phase electrical machine 1, the height of the stator teeth 31 in the axial direction A is sufficient to arrange three layers of stator windings 34 one above the other.
  • stator assembly 3 For the operation of the stator assembly 3, it is necessary to form them from a soft magnetic material. However, the size of the stator assembly 3, it is necessary to form them from a soft magnetic material. However, the size of the stator assembly 3, it is necessary to form them from a soft magnetic material. However, the size of the stator assembly 3, it is necessary to form them from a soft magnetic material. However, the size of the stator assembly 3, it is necessary to form them from a soft magnetic material. However, the size of the stator assembly 3.
  • Stator assemblies 3 for machines with disc rotors usually too large to be able to produce such a stator assembly with sufficient yield and sufficient tolerance accuracy in one piece. It is therefore provided to construct the stator arrangement 3 from a plurality of individual stator elements.
  • a stator arrangement 3 of the embodiment of FIGS. 1a to 1c which is shown separately in FIG. 2 in a perspective view, the stator segment 40 shown in different views in FIGS. 3a to 3c can be used, for example.
  • FIG. 2 shows the stator segment 40 shown in different views in FIGS. 3a to 3c
  • Stator assembly 3 with an annular yoke portion 35 as a base body and thereon in the axial direction A projecting stator teeth 31st
  • stator element of FIGS. 3a to 3c corresponds to a stator segment 40, which is shaped corresponding to a ring segment.
  • stator assembly 3 can be formed from a plurality of such stator segments 40.
  • stator segments 40 In order to ensure stable attachment of the individual stator segments 40 at their tangential ends (at their ends pointing in the circumferential direction U), they can be connected to one another by suitable connection methods.
  • the stator segments 40 can be connected to each other by gluing, welding, soldering, pressing or by mechanical connections with rivets, pins or screws.
  • a step 41 which, when placed against a corresponding tangential end of another stator segment 40, provides the step with the
  • Statorzähnen 31 provided side or the opposite side of the yoke portion 35 overlaps accordingly.
  • a connection in the manner described above, in particular by gluing, welding, soldering, pressing or by mechanical connections with rivets, pins or screws, can be achieved.
  • steps 41 are provided at both tangential ends of the stator segment 40, then they should be designed to be complementary, so that they engage in the assembly of the stator segments 40 to form the annular stator assembly 3 and form the largest possible connection surface.
  • an overlap region 42 which overlap or cover a corresponding region of the provided with stator teeth 31 side of the yoke region 35 may be provided with a recess 43, the cutout or its shape corresponds to a part of the cross section or the entire cross section of a stator tooth 31.
  • Stator segment 40 next stator tooth 31 with the contour of its base in the recess 43, so that the overlap region 42 overlaps the corresponding region of the provided with stator teeth 31 side of the return region 35.
  • stator tooth 31 the entire cross-section of a stator tooth 31 at its base (and thus represents a passage opening in the overlap region 42), the joining of stator segments 40 can no longer be achieved by moving against each other in the tangential direction. Rather, a stator tooth 31 is inserted at a tangential end of a stator segment 40 through the corresponding recess 43 of the overlap region 42 by an axial movement relative to each other, so that a load on tangential train connection can be created, as for example in the sectional view of FIG is shown. It is, of course, also possible to provide the overlap region 42 in a tangential length in which a plurality of recesses 43 (two recesses 43 in the example of FIG. 4) are provided for receiving stator teeth 31 of a further stator segment 40.
  • At least one tangential end of the stator segment 40 may be provided with at least one tab 44 projecting inward in the radial direction R and / or outwardly from the inference region 35.
  • the at least one tab 44 is formed integrally with the return region 35.
  • the return region of the stator segments 40 can preferably be provided as a ring segment with a segment angle which is suitable for an integral number of identical stator segments 40 to the Stator assembly 3 to connect with each other.
  • the inference regions 35 can be provided with segment angles of between 10 and 90 °, in particular between 45 ° and 60 °, whereby the overlap region 42 is disregarded in the determination of the segment angle.
  • the stator segments 40 may also be provided with different segment angles, which are selected and assembled so that a complete ring of the stator assembly 3 is formed.
  • the segment angle of the stator segments 40 should be selected so that the stator segments 40 are sized to be integrally formed, for example, by pressing a soft magnetic composite material and then sintering.
  • Fig. 6 is a detail of a stator assembly 3, which corresponds to a stator assembly of Figures 1 a to 1 c, shown in a further construction.
  • Structure of Figure 6 includes a separately formed annular yoke region 35, which is in the form of a soft magnetic base plate 51 (base body) is formed.
  • the base plate 51 can be made of iron, steel or an electrical sheet or laminated core (stacked in the axial or radial direction A). The electric sheet can be easier to punch through a process
  • stator elements 40 for constructing the stator assembly 3 are formed in this case only as a single stator tooth elements 52, which are arranged in a suitable manner in or on the base plate 51. Basically, the as
  • Stator leopardieri 52 formed stator 40 by adhesion and / or positive connection and / or material connection to be arranged on or in the base plate 51.
  • the stator teeth 52 may be molded from a powdered soft magnetic composite (WMV) material and made by compression and subsequent sintering. Due to the small volume and simple geometry of similar produced in this way
  • Stator tooth elements 52 are high densities and thus very good magnetic properties and strengths possible. In addition, such a production process for stator tooth elements 52 is favorable. Furthermore, the stability of such a produced stator assembly 3 can be improved because the base plate 51 can be made of a different dimensionally stable and robust material and not necessarily made of a compressed soft magnetic composite material must be prepared.
  • Stator tooth member 52 is inserted into a corresponding recess 53 of the base plate 51 and held there by adhesion. That's it
  • the attachment of the Stator leopardelements 52 in the base plate 51 is achieved by corresponding pressure of the Stator leopardelements 52 in the base plate 51.
  • FIG. 7b a positive connection is shown, wherein a further embodiment of a Stator leopardelements 52 is inserted through a through hole 54 in the base plate 51 and held by a suitable stop edge 55 and an undercut on the stator teeth 31 side facing away from the base 51 at this.
  • Undercuts serve as fastening means of the stator tooth element 52.
  • FIG. 7c shows how one embodiment of a stator tooth element 52 is fastened on a surface of the base plate 51 by means of material connection.
  • the Stor leopardelement 52 can be held by welding or gluing.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Die Erfindung betrifft ein Statorelement zum Aufbau einer Statoranordnung (3) sowie eine Statoranordnung (3) für eine mehrphasige elektrische Maschine (1), wobei das Statorelement mindestens einen Statorzahn (31) umfasst, der durch Verpressen aus einem weichmagnetischen Verbundwerkstoff hergestellt ist, wobei das Statorelement weiterhin ausgebildet ist, um mit mindestens einem weiteren Statorelement zu der Statoranordnung (3) zusammengesetzt zu werden.
PCT/EP2015/051668 2014-03-05 2015-01-28 Statorelement zum aufbau einer statoranordnung für eine elektrische maschine, statoranordnung und verfahren zum aufbau einer statoranordnung WO2015132022A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15701962.1A EP3114753A1 (fr) 2014-03-05 2015-01-28 Statorelement zum aufbau einer statoranordnung für eine elektrische maschine, statoranordnung und verfahren zum aufbau einer statoranordnung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014203945.2A DE102014203945A1 (de) 2014-03-05 2014-03-05 Statorelement zum Aufbau einer Statoranordnung für eine elektrische Maschine, Statoranordnung und Verfahren zum Aufbau einer Statoranordnung
DE102014203945.2 2014-03-05

Publications (1)

Publication Number Publication Date
WO2015132022A1 true WO2015132022A1 (fr) 2015-09-11

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PCT/EP2015/051668 WO2015132022A1 (fr) 2014-03-05 2015-01-28 Statorelement zum aufbau einer statoranordnung für eine elektrische maschine, statoranordnung und verfahren zum aufbau einer statoranordnung

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EP (1) EP3114753A1 (fr)
DE (1) DE102014203945A1 (fr)
WO (1) WO2015132022A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI702775B (zh) * 2019-06-19 2020-08-21 威剛科技股份有限公司 軸向間隙型旋轉電機的軸向定子
CN112823467A (zh) * 2018-10-16 2021-05-18 雷诺股份公司 用于电机的定子齿、相关联的轭和定子

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016218822A1 (de) 2016-09-29 2018-03-29 Audi Ag Stator für eine elektrische Maschine, elektrische Maschine für ein Kraftfahrzeug und Kraftfahrzeug
DE102021122130A1 (de) 2021-08-26 2023-03-02 Schaeffler Technologies AG & Co. KG Stator einer elektrischen Rotationsmaschine, Verfahren zur Herstellung des Stators sowie elektrische Rotationsmaschine

Citations (6)

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US4835840A (en) * 1986-06-16 1989-06-06 General Electric Company Method of making an improved disc rotor assembly
FR2851088A1 (fr) * 2003-02-12 2004-08-13 Seb Sa Stator pour moteur electrique a flux axial
WO2004093291A1 (fr) * 2003-04-15 2004-10-28 Höganäs Ab Noyau magnetique arriere d'une machine electrique et son procede de production
EP2012408A1 (fr) * 2006-03-27 2009-01-07 Daikin Industries, Ltd. Noyau d'armature, moteur associe, et son procede de fabrication
US20100231084A1 (en) * 2009-03-13 2010-09-16 Kinoshita Nobuo Core block, and magnetic pole core using core blocks for motor
US20120263612A1 (en) * 2009-11-30 2012-10-18 Fujitsu General Limited Axial gap motor and pump device

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Publication number Priority date Publication date Assignee Title
ES2392288T3 (es) 2008-03-15 2012-12-07 Compound Disk Drives Gmbh Accionamiento directo de baja inercia con alta densidad de potencia

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Publication number Priority date Publication date Assignee Title
US4835840A (en) * 1986-06-16 1989-06-06 General Electric Company Method of making an improved disc rotor assembly
FR2851088A1 (fr) * 2003-02-12 2004-08-13 Seb Sa Stator pour moteur electrique a flux axial
WO2004093291A1 (fr) * 2003-04-15 2004-10-28 Höganäs Ab Noyau magnetique arriere d'une machine electrique et son procede de production
EP2012408A1 (fr) * 2006-03-27 2009-01-07 Daikin Industries, Ltd. Noyau d'armature, moteur associe, et son procede de fabrication
US20100231084A1 (en) * 2009-03-13 2010-09-16 Kinoshita Nobuo Core block, and magnetic pole core using core blocks for motor
US20120263612A1 (en) * 2009-11-30 2012-10-18 Fujitsu General Limited Axial gap motor and pump device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112823467A (zh) * 2018-10-16 2021-05-18 雷诺股份公司 用于电机的定子齿、相关联的轭和定子
TWI702775B (zh) * 2019-06-19 2020-08-21 威剛科技股份有限公司 軸向間隙型旋轉電機的軸向定子

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Publication number Publication date
DE102014203945A1 (de) 2015-09-10
EP3114753A1 (fr) 2017-01-11

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