EP4222847A1 - Procédé de production d'un stator incliné - Google Patents

Procédé de production d'un stator incliné

Info

Publication number
EP4222847A1
EP4222847A1 EP21783420.9A EP21783420A EP4222847A1 EP 4222847 A1 EP4222847 A1 EP 4222847A1 EP 21783420 A EP21783420 A EP 21783420A EP 4222847 A1 EP4222847 A1 EP 4222847A1
Authority
EP
European Patent Office
Prior art keywords
stator core
leg sections
stator
arrangement
leg
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.)
Pending
Application number
EP21783420.9A
Other languages
German (de)
English (en)
Inventor
Regina Bach
Sebastian Beetz
Boris Dotz
Christian FINGER-ALBERT
Carsten Siepker
Sebastian Waider
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.)
Valeo eAutomotive Germany GmbH
Original Assignee
Valeo eAutomotive Germany 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 Valeo eAutomotive Germany GmbH filed Critical Valeo eAutomotive Germany GmbH
Publication of EP4222847A1 publication Critical patent/EP4222847A1/fr
Pending 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
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
    • 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
    • H02K1/165—Shape, form or location of the slots
    • 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
    • H02K15/0025—Shaping or compacting conductors or winding heads after the installation of the winding in the core or machine ; Applying fastening means on winding heads
    • 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
    • H02K15/08—Forming windings by laying conductors into or around core parts
    • H02K15/085—Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/06—Magnetic cores, or permanent magnets characterised by their skew
    • 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
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present invention relates to a method for manufacturing a skewed stator which has a stator winding made of shaped conductors.
  • CN 109 639 078 A discloses a method of manufacturing a stator assembly of a motor with hairpin windings, comprising the steps of: providing a stator core having an inclined slot; providing a plurality of hairpins having a square cross-sectional area; twisting legs of the hairpins according to a spiral shape of the oblique grooves so that an angle of the legs corresponds to an angle of the grooves; grouping free ends of the legs of several twisted hairpins into a cage; inserting the cage into the stator core by rotation; and electrically connecting the free ends in pairs to form a coil.
  • the invention is based on the object of specifying a simplified method for producing a skewed stator whose stator winding has shaped conductors.
  • stator core which has a plurality of slots which extend from a first end face of the stator core to an opposite second end face of the stator core and have a slant in the circumferential direction
  • a skewed stator is manufactured.
  • a skewed stator is a stator whose slots provided for the stator windings not only extend in the axial direction, but also have a slant in the circumferential direction. These grooves preferably run helically.
  • the stator includes formed conductors as stator windings.
  • the shaped ladders have two leg sections and a connecting section which connects the leg sections, in particular in an electrically conductive manner.
  • Such shape conductors are referred to in particular as U-pin or hairpin windings.
  • the leg sections each comprise a free end and an end connected to the connecting section.
  • the shaped ladders are provided such that their leg portions are straight at first.
  • these shaped conductors provided in this way are pushed into the stator core that already has the inclined slots, as a result of which the leg sections of the shaped conductors pushed into the stator core have a course corresponding to the grooves, in particular one of the helically extending grooves has a helical course.
  • the slanted stator it is therefore intended for the production of the slanted stator to introduce the provided arrangement, the form conductor of which initially has the straight leg sections, into the stator core having the slanted slots on the first end face by means of a relative movement in the axial direction between the stator core and the arrangement, whereby the Leg sections of the at least one shaped conductor are bent as a result of the relative movement in such a way that the course of the leg sections introduced into the starter core is given a slant corresponding to the slant of the grooves.
  • a relative movement takes place exclusively in the axial direction.
  • the stator core is preferably stationary and the arrangement is moved in the axial direction, in particular exclusively in the axial direction, relative to the stationary stator core.
  • stator in particular, a continuously skewed stator can be implemented with, in particular, the greatest possible optimization of the reduction in cogging torque and torque ripple during operation of the electrical machine.
  • advantages of a stator winding made of shaped conductors in particular the simple production and the possibility of a high degree of automation compared to windings made of round wires, are achieved.
  • the stator obtained by the method according to the invention advantageously also makes it possible to use a non-skewed rotor, which considerably reduces the manufacturing costs of an electrical machine.
  • the method according to the invention advantageously makes it possible to dispense with bending the leg sections in a separate method step before insertion into the grooves, which simplifies the manufacturing process.
  • the provided arrangement Before inserting the arrangement, ie the straight leg sections of the shaped conductor into the slots, the provided arrangement, whose shaped conductor has the straight leg sections, is aligned in particular relative to the stator core in such a way that the straight leg sections are aligned parallel to the longitudinal extent or to the longitudinal axis of the stator core.
  • the leg portions are inserted into the slots with their free ends on the first end face of the stator core.
  • a shaped conductor which can also be referred to as a hairpin conductor, is characterized in particular by the fact that it is made of solid metal, in particular copper.
  • the shaped conductor typically has a rectangular cross-section, optionally rounded.
  • the shaped conductor is preferably not designed to be flexible.
  • the leg portions of the form conductor can be rod-shaped.
  • the cross section of the leg sections is preferably designed in such a way that a predetermined number of leg sections, for example at most 16 leg sections, preferably at most twelve leg sections, particularly preferably at most eight leg sections, are radially layered within a groove at least 40%, in particular at least 60%, preferably at least 80 %, of the cross-sectional area of the groove.
  • leg sections in particular at least two leg sections, preferably at least four leg sections, more preferably at least six leg sections, particularly preferably at least eight leg sections, can be introduced into a respective groove.
  • the method according to the invention provides that the leg sections and the grooves run straight in the axial direction, preferably immediately before the step of performing the relative movement, and are only given the respective bevel during the step of performing the relative movement.
  • the leg sections and the connecting section connecting them are formed in one piece.
  • the stator core preferably comprises a multiplicity of axially layered stator core elements, for example disc-shaped stator laminations or individual laminations.
  • the stator core is in particular a laminated core. It is preferred if the stator core elements of the stator core are connected to one another in a torque-proof manner.
  • the stator core elements can be materially bonded, in particular by welding, preferably laser to weld, to be connected.
  • the stator core elements each have a thickness of 0.27 mm to 0.5 mm, for example.
  • the stator core elements are preferably electrically isolated from one another.
  • the step of providing the stator core can in particular include the following sub-steps: providing a multiplicity of stator core elements; arranging the stator core members such that through-holes of the stator core members forming the slots of the stator core have the slope; and joining the stator core elements so that they are non-rotatably connected to one another.
  • stator core elements As part of the arrangement of the stator core elements, provision can be made for them to be stacked axially with an offset relative to one another that forms the bevel.
  • stator core elements are arranged axially in layers one on top of the other, so that the through-openings of the stator core elements, which form the slots of the stator core, extend straight in the axial direction.
  • the slanting can be realized by collectively offsetting the through-openings with respect to one another.
  • an offset tool which extends axially along all the layered stator core elements, to be inserted radially from the inside into one or more slots and pivoted to produce the skew.
  • Such an offset tool can also be referred to as a sword.
  • the slope of the grooves is preferably helical.
  • the helical or helical bevel is characterized in particular by a constant pitch and/or a bevel angle that is constant along the axial direction.
  • an axial opening of a respective groove on the first end face is located at an angular position in the circumferential direction at which an axial opening of a directly defined neighboring groove is located on the second face.
  • the arrangement comprises so many shaped conductors that the leg sections of the shaped conductors, radially layered, fill all the slots of the stator core, in particular completely.
  • Such an arrangement can also be referred to as a form ladder basket.
  • An arrangement is therefore provided whose form conductors are arranged according to a predetermined winding scheme of the stator winding and fill the slots completely in an insertion process or fill them to the extent that only individual additional form conductors for connecting the stator winding, for example for forming phase connections and/or for forming from one or more star point connectors, are to be introduced.
  • An advantage of this configuration is the speedy introduction of the shaped conductors into the stator core.
  • a plurality of arrangements each having a plurality of shaped conductors are provided, which are successively inserted into the stator core, the leg sections of the shaped conductors of the plurality of arrangements being radially layered and filling all the slots of the stator core.
  • Such arrangements can also be referred to as form ladder part baskets.
  • the form conductors of which are arranged according to a predetermined winding scheme of the stator winding and fill the slots completely in several insertion processes or fill them to the extent that only individual additional form conductors for connecting the stator winding, for example for forming phase connections and/or for forming from one or more star point connectors, are to be introduced.
  • a respective arrangement can include so many shaped conductors that the leg sections of the shaped conductors fill radially layered slots of the stator core in an angular range in the circumferential direction of at most 180°, preferably at most 120°, particularly preferably at most 90°.
  • the leg sections can only fill out a sector of the grooves in the circumferential direction.
  • a respective arrangement can comprise so many shaped conductors that the leg sections of the shaped conductors, layered radially in the grooves, fill at most half, preferably at most one third, particularly preferably at most one quarter, of the radial extent of a respective groove. Accordingly, such an arrangement can fill only part of the layers in the grooves provided for the arrangement of the shaped conductors.
  • each arrangement prefferably includes exactly one shaped conductor, so that the grooves can be introduced individually one after the other.
  • the stator core is provided with electrically insulating slot boxes, which are arranged in a respective slot of the stator core.
  • an electrically insulating slot box can be inserted into a respective slot.
  • a slot box is to be understood in particular as a device which extends over the entire axial extent of the slot and completely lines the slot in the circumferential direction in order to electrically insulate the interior of the slot from the stator core.
  • a box is made of insulating paper. It is preferred if the material of the slot box is chosen so is that it hugs the bevel when inserted into the beveled grooves.
  • a guide tool is or is arranged on the first end face of the stator core, with a respective leg section hitting the guide tool when the relative movement is carried out before the slot is reached and being bent in such a way that the skew is formed.
  • the bending of the leg sections cannot therefore take place directly on the stator core itself, but rather shortly before it reaches the first end face, in order to avoid damaging the leg sections or the inner surface of the slots.
  • the guide tool has a higher mechanical strength than the form ladder. In this way, a sufficiently high strength can be achieved in order to absorb bending forces during bending.
  • the guiding tool for each leg section has a surface against which the leg section abuts and is tangentially bent.
  • the guide tool has a surface for each leg section, against which the leg section strikes and is bent in the radial direction.
  • the respective surface gives the leg section its bending in the circumferential or radial direction during insertion in order to suitably follow the slope of the grooves.
  • the or a respective surface or the guide tool is preferably made of metal, in particular steel.
  • the surfaces of the guide tool are preferably rounded and/or designed to be smoother than the surfaces of the stator core within the slots. Such a very smooth and rounded surface makes it easier for the leg portions to slide along the surfaces than the stator core.
  • the or a respective surface is more inclined relative to the central axis than a helix angle of the grooves. This can springing back of the leg sections after bending can be compensated for, so that the leg sections can be easily inserted into the grooves.
  • the guide tool can also be particularly advantageous for the guide tool to be formed from a large number of segments, with the segments being able to be in a radially engaged position on the stator core during bending and being able to be disengaged radially outwards to remove the guide tool.
  • the segments may each have two radial projections, with the leg portions passing alternately from groove to groove between the projections of one of the segments and between a respective projection of two adjacent segments.
  • the relative movement is carried out in such a way that free ends of the leg sections do not touch the groove boxes.
  • the groove boxes can be fixed using the guide tool.
  • shaped conductors are preferably used whose connecting sections are bent in such a way that the leg sections of the shaped conductor realize an offset by several grooves in the circumferential direction and/or an offset by one or more layers in the radial direction.
  • Providing the at least one arrangement may include bending an elongate electrically conductive rod so that the two parallel leg sections and/or the connecting section realizing the offset in the circumferential direction and/or the radial direction are formed.
  • the shaped conductors can be formed by rotary bending, for example by means of a 3D bending device, when the at least one arrangement is provided.
  • the following further step can be provided within the scope of the method according to the invention: bending free ends of a respective leg section on the second end face, so that the free ends of different shaped ladders lie against one another.
  • the following step can be provided: electrically conductive connection of the free ends lying against one another.
  • the connection is preferably made by a joining method, in particular by welding, preferably laser welding.
  • FIG. 1 shows a flow chart of an exemplary embodiment of the method according to the invention
  • FIG. 2 is a front view of a stator core used in the method
  • FIG. 3 shows a basic sketch of a form conductor used in the context of the method
  • FIG. 5 shows a schematic diagram of an introduction process of an arrangement of shaped conductors into the stator core as part of the method
  • FIG. 8 shows a schematic diagram of an example of a vehicle with an example of an electrical machine which has a stator obtained by the method according to the invention.
  • 1 is a flowchart of an embodiment of a method for manufacturing a skewed stator according to the present invention.
  • the method includes a first step S10, in which a stator core 1, which is designed in particular as a laminated core, is provided.
  • stator core 1 is a front view of the stator core 1.
  • the stator core 1 comprises, by way of example, 54 slots 2 which extend from a first end face 3, which is shown in FIG. 2, to an opposite second end face 4 (see FIG. 3).
  • the grooves 2 have a helical bevel around a groove pitch. Accordingly, an axial opening of a respective groove 2 on the first face 3 is at an angular position in the circumferential direction at which an axial opening of an immediately adjacent groove is on the second face 4 (see Fig. 3).
  • step S10 of providing the stator core 1 comprises five sub-steps S11 to S15:
  • a multiplicity of stator core elements 5 are provided, each of which is designed in particular as a single sheet or stator sheet, for example with a thickness of 0.27 mm to 0.5 mm, and has through-openings for forming the slots 2.
  • the axially outermost stator core element 5 can be seen in FIG. 2 .
  • the stator core elements 5 are formed by stamping.
  • the stator core elements 5 are arranged in an axially stacked manner so that the through holes of the stator core elements 5 extend straight in the axial direction.
  • the skew of the stator core 1 is produced by the through-openings being offset collectively with respect to one another.
  • an offset tool which extends along all layered stator core elements 5, is inserted radially from the inside into one or more slots 2 and pivoted to produce the skew.
  • the stator core elements 5 are joined together has, so that they are rotatably connected to each other.
  • a number of axial weld seams are produced on the outside of the stator core 1 provided in this way. This is preferably done by laser welding.
  • an electrically insulating slot box 6 (see FIG. 4) made of insulating paper is introduced into each slot 2, which extends completely in the axial direction between the end faces 3, 4 and completely lines the slot 2 in the circumferential direction.
  • step S13 is dispensed with if the stator core elements 5 are already stacked axially with the offset forming the skew relative to one another.
  • Fig. 3 is a schematic diagram of a shaped conductor 7 used in the process.
  • Fig. 4 is a schematic diagram of a groove 2 with shaped conductors 7 accommodated therein.
  • the shaped conductor 7 comprises two straight leg sections 8 which extend equidistantly and a connecting section 9 which electrically conductively connects the leg sections 7 .
  • the connecting section 8 is designed in such a way that the leg sections 7, when they are inserted into the grooves 2, are arranged in different grooves 2 and in different radial layers within a respective groove 2, in particular are form-fitting. 4 shows that eight leg sections 8 in eight layers of a groove 2, which is lined by the groove box 6, fill approximately 80% of the cross-sectional area of the groove 2. As can be seen, the leg sections 8 have a rounded, rectangular cross section.
  • Each shaped conductor 7 is made of copper, with the leg sections 8 being formed in one piece with the connecting section 9 .
  • step S20 of the method the arrangement 10 is provided from a plurality of shaped ladders 7, the leg sections being straight and aligned parallel to one another.
  • step S20 comprises three sub-steps S21 to S23:
  • a rod made of copper is provided in sub-step S21. This is bent in sub-step S22, so that on the one hand the connecting section 9 is formed and on the other hand the leg sections 8, which run straight and parallel to one another, are formed.
  • the connecting sections 9 are bent in such a way that the leg sections 8 of the shaped conductor 7 are offset by a number of grooves in the circumferential direction and offset by one or more layers in the radial direction.
  • the connecting section 9 is formed by rotary bending, for example by means of a 3D bending device.
  • FIG. 6 and 7 are each a perspective view of a guide tool 11 used in the process.
  • the guide tool 11 is formed from a plurality of segments 11a, the number of which corresponds to half of the slots 2 of the stator core 1.
  • FIG. The segments 11a are shown in Fig. 6 in an engaged position and in Fig. 7 in a disengaged position.
  • Each segment 11a has two radial projections 11b.
  • the guide tool 11 is made of steel, for example, and has a higher mechanical strength than the shaped ladder 7 .
  • a step S30 the guide tool 11 is arranged on the first end face 3 of the stator core 1 .
  • the segments 11a are indented in their Position arranged on the stator core 1 such that every second slot 2 is located between the projections 11b of a respective segment 11a and the remaining slots 2 are located between the projections 11b of two adjacent segments 11a.
  • the guide tool 11 or a respective segment 11a fixes the groove boxes 6.
  • a relative movement in the axial direction between the stator core 1 and the arrangement 10 is carried out in a step S40.
  • the form conductors 7 are introduced into the grooves 2 by the relative movement.
  • a respective leg section 8 hits a surface 12 (see FIG. 7) of the guide tool 11 and is bent tangentially.
  • a respective surface 12 is more inclined relative to the central axis of the stator core 1 than a helix angle of the slots 2, so that the leg sections 8 can spring back after bending.
  • the surfaces 12 are also formed smoother than the surfaces of the stator core 1 within the slots 2 to allow the leg portions 8 to slide over the surfaces 12 easily. If necessary, a relative movement in the circumferential direction can be superimposed on the relative movement in the axial direction.
  • the relative movement is carried out until the free ends of the leg sections 8 protrude from the stator core 1 at the second end face 4 .
  • the relative movement takes place in such a way that the free ends of the leg sections 8 do not touch the slot boxes 6 in order to avoid damaging the slot boxes 6 .
  • the slot boxes 6 are fixed by the guide tool 11 as previously described.
  • the surface 12 is located axially further outwards than the groove boxes 6.
  • the arrangement 10 it is possible for the arrangement 10 to remain unmoved during the relative movement and for the stator core 1 to be moved in the axial direction. It is also possible for both the arrangement 10 and the stator core 1 to be moved during the relative movement.
  • the guide tool 11 is removed from the stator core 1 in a subsequent step S50.
  • the segments 11a as shown in FIG. 7, are disengaged radially outwards.
  • a subsequent step S60 the free ends of the leg sections 8 are bent on the second end face 4 in such a way that the free ends of two different leg sections lie against one another.
  • a subsequent step S70 the free ends lying against one another are connected in an electrically conductive manner by means of laser welding.
  • a plurality of arrangements 10 are provided as form ladder partial baskets or are arranged in sub-step 23 .
  • a respective arrangement 10 comprises so many shaped conductors 7 that their leg sections have radially layered slots 2 of the stator core 1 in a predetermined angular range in the circumferential direction of at most 90° and/or radially layered in the slots 2 a quarter of the radial extent of a respective slot 2, fill.
  • These assemblies 10 are inserted into the grooves 2 one by one in step S40.
  • FIG. 8 is a schematic diagram of a vehicle 100 with an electric machine 101 which has a stator 103 obtained by the method described above.
  • Electric machine 101 is set up to drive vehicle 100 .
  • This is designed as a partially or fully electrically driven vehicle, for example as a battery electric vehicle (BEV) or as a hybrid vehicle.
  • BEV battery electric vehicle

Landscapes

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

Abstract

L'invention concerne un procédé de production d'un stator incliné (103) qui comporte un enroulement de stator composé de conducteurs façonnés (7), comprenant les étapes suivantes consistant à : - fournir un noyau de stator (1) qui comprend une pluralité de rainures (2) qui s'étendent à partir d'une première face d'extrémité (3) du noyau de stator (1) à une seconde face d'extrémité (4) opposée du noyau de stator (1) et présentent une inclinaison dans la direction circonférentielle, - fournir au moins un agencement (10) ayant au moins un conducteur façonné (7), qui possède deux parties pattes droites (8) orientées parallèlement l'une à l'autre et une partie de connexion (9) connectant les deux parties pattes (8), - introduire l'agencement (10), dont le conducteur façonné comprend les parties pattes droites (8), dans le noyau de stator (1), qui est situé sur la première face d'extrémité (3) et comporte des rainures inclinées (2), au moyen d'un déplacement relatif dans la direction axiale entre le noyau de stator (1) et l'agencement (10), de telle sorte que les parties pattes (8) du ou des conducteurs façonnés (7) sont courbées à la suite du déplacement relatif d'une manière telle que la forme des parties pattes (8) introduites dans le noyau de stator (1) acquiert une inclinaison qui correspond à l'inclinaison des rainures (2).
EP21783420.9A 2020-09-30 2021-09-21 Procédé de production d'un stator incliné Pending EP4222847A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020212358.6A DE102020212358A1 (de) 2020-09-30 2020-09-30 Verfahren zur Herstellung eines geschrägten Stators
PCT/EP2021/075873 WO2022069289A1 (fr) 2020-09-30 2021-09-21 Procédé de production d'un stator incliné

Publications (1)

Publication Number Publication Date
EP4222847A1 true EP4222847A1 (fr) 2023-08-09

Family

ID=78032397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21783420.9A Pending EP4222847A1 (fr) 2020-09-30 2021-09-21 Procédé de production d'un stator incliné

Country Status (7)

Country Link
US (1) US20230361660A1 (fr)
EP (1) EP4222847A1 (fr)
JP (1) JP2023543481A (fr)
KR (1) KR20230058138A (fr)
CN (1) CN116210148A (fr)
DE (1) DE102020212358A1 (fr)
WO (1) WO2022069289A1 (fr)

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US2125970A (en) 1936-01-06 1938-08-09 Wagner Electric Corp Method of making squirrel cage rotors
GB2290040B (en) 1992-02-03 1996-03-06 Gen Electric Making armatures for electrodynamic machines
US5584119A (en) 1994-11-07 1996-12-17 General Electric Company Apparatus for setting skew angle
JP2006333581A (ja) * 2005-05-24 2006-12-07 Toyota Industries Corp ステータ及びステータの製造方法
JP5665228B2 (ja) * 2011-03-16 2015-02-04 日特エンジニアリング株式会社 スキュー付ステータの製造方法及びその製造装置
JP5962607B2 (ja) 2013-07-23 2016-08-03 トヨタ自動車株式会社 回転電機ステータ及びその製造方法
CN105490469B (zh) 2015-12-18 2018-02-02 贵阳航空电机有限公司 扭斜叠压转子压装夹具
DE102016220040A1 (de) * 2016-10-14 2018-04-19 Siemens Aktiengesellschaft Helixartige Wicklung mit homogenerer Feldausnutzung
WO2019142663A1 (fr) * 2018-01-18 2019-07-25 アイシン・エィ・ダブリュ株式会社 Procédé de fabrication de stator et stator
EP3614531A1 (fr) * 2018-08-21 2020-02-26 youWINenergy GmbH Machine électrique tournante et procédé de fabrication d'une machine électrique tournante
CN109639078A (zh) 2018-12-29 2019-04-16 舍弗勒技术股份两合公司 发卡式绕组电动机的定子总成的组装方法

Also Published As

Publication number Publication date
US20230361660A1 (en) 2023-11-09
JP2023543481A (ja) 2023-10-16
DE102020212358A1 (de) 2022-03-31
CN116210148A (zh) 2023-06-02
WO2022069289A1 (fr) 2022-04-07
KR20230058138A (ko) 2023-05-02

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