WO2024104753A1 - Composant de bobine pour une machine électrique d'un véhicule automobile et procédé de fabrication d'un composant de bobine - Google Patents

Composant de bobine pour une machine électrique d'un véhicule automobile et procédé de fabrication d'un composant de bobine Download PDF

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Publication number
WO2024104753A1
WO2024104753A1 PCT/EP2023/079865 EP2023079865W WO2024104753A1 WO 2024104753 A1 WO2024104753 A1 WO 2024104753A1 EP 2023079865 W EP2023079865 W EP 2023079865W WO 2024104753 A1 WO2024104753 A1 WO 2024104753A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
insulating element
hairpins
coil component
groove
Prior art date
Application number
PCT/EP2023/079865
Other languages
German (de)
English (en)
Inventor
Matthias Bluemel
Juergen Huettinger
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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 Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2024104753A1 publication Critical patent/WO2024104753A1/fr

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Classifications

    • 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
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/10—Applying solid insulation to windings, stators or rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/48—Fastening of windings on the stator or rotor structure in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/223—Heat bridges

Definitions

  • the invention relates to a coil component for an electrical machine of a motor vehicle and to a method for producing a coil component for an electrical machine of a motor vehicle.
  • a coil component for an electrical machine with a carrier and a coil winding accommodated at least in sections in the carrier is known.
  • the carrier has an annular region with a plurality of grooves arranged distributed in a circumferential direction, wherein a plurality of winding sections of the coil winding are accommodated in each groove.
  • an insulation layer is arranged between the carrier and the winding sections and protrudes over the winding sections towards a radial opening of the at least one groove with two extension sections.
  • a closure element is accommodated in the carrier towards the radial opening, wherein the two extension sections are designed and arranged such that the closure element is spaced from the carrier by the extension sections.
  • stator slots are insulated with surface insulation material. After the installation of a winding, it is impregnated with a synthetic resin to fix it in the stator, improve the heat transfer to the laminated core and increase partial discharge resistance.
  • a Lacquer insulation of the stator winding with this impregnation resin.
  • impregnation resin can get onto the winding heads of the stator. There it can lead to failure of the lacquer insulation of the winding.
  • the object of the present invention is to provide a solution by means of which a coil of a coil component is particularly well electrically insulated from a carrier and failure of a lacquer insulation of the coil can be avoided.
  • the invention relates to a coil component for an electric machine of a motor vehicle.
  • the coil component can be a rotor or a stator for the electric machine.
  • This electric machine is in particular a traction machine by means of which the motor vehicle can be driven electrically.
  • the coil component comprises a carrier which has a multiplicity of grooves distributed in the circumferential direction of the carrier and extending in the axial direction.
  • the carrier can, for example, comprise a laminated core made up of a multiplicity of sheets stacked on top of one another in a stacking direction or can be manufactured in one piece, for example as part of a sintering process.
  • the coil component also comprises a plurality of hairpins which are arranged at least in some areas in the grooves.
  • These hairpins can also be referred to as plug-in coils.
  • These hairpins can be U-shaped, lacquered flat copper wires which are inserted into the grooves of the carrier.
  • the hairpins can be designed as I-pins and thus as straight flat copper wire elements.
  • the totality of the hairpins of the coil component forms a coil of the coil component. This means that the coil comprises all the hairpins of the coil component, whereby the hairpins are inserted into the grooves of the carrier.
  • each groove of the At least one hairpin is arranged in the carrier.
  • several hairpins are arranged in each groove of the carrier.
  • the coil component further comprises at least one insulating element arranged in one of the grooves, by means of which the hairpins arranged in this groove are electrically insulated from a groove wall of the carrier that delimits the groove.
  • the coil component comprises several insulating elements, with at least one insulating element being arranged in each of the grooves of the carrier, by means of which the hairpins arranged in this groove are insulated from a groove wall of the carrier that delimits this groove.
  • the insulating element is supported against the groove wall of the carrier via a wedge geometry.
  • a force acting on the wedge geometry in the axial direction of the carrier is converted via the wedge geometry into a force acting in the circumferential direction of the carrier, by means of which the insulating element is pressed against the hairpins in the circumferential direction.
  • the axial direction of the carrier coincides in particular with a rotation axis of the rotor or a central axis of the stator as a coil component.
  • the circumferential direction coincides with a direction of rotation of the rotor relative to the stator in the electrical machine.
  • the wedge geometry thus clamps the at least one insulating element in the groove, whereby the at least one insulating element is placed particularly close and in particular flat against the hairpins.
  • the insulating element has the wedge geometry, so that two side surfaces of the insulating element converge at an acute angle.
  • the wedge geometry of the insulating element comprises a first surface and a second surface that is oriented at an angle to it, which approach each other in the axial direction and in particular adjoin each other in a molded edge. Because the insulating element itself has the wedge geometry, particularly few components are required in the coil component in order to electrically insulate the hairpins from the carrier and on the other hand, the insulating component is placed particularly close to the hairpins. This makes it particularly easy to manufacture the coil component.
  • the insulating element has a U-shaped cross-section.
  • the U-shape of the cross-section occurs when the insulating element is inserted in the axial direction into a groove of the carrier, in particular when the insulating element is cut perpendicular to the axial direction.
  • This U-shaped cross-section of the insulating element means that at least one of the hairpins arranged in this groove, in particular all of the hairpins arranged in this groove, can be electrically insulated on at least three sides by means of the insulating element.
  • the hairpins can be electrically insulated from the carrier over a particularly large area by means of the insulating element.
  • insulating elements are arranged one above the other in the axial direction in a groove and partially inserted into one another, whereby the respective insulating elements abut one another with their respective wedge geometries.
  • the insulating elements can brace one another within the groove via the wedge geometries of the insulating elements arranged in a common groove, whereby one of the insulating elements presses another of the insulating elements in the same groove particularly firmly against the hairpins arranged in this groove.
  • two insulating elements are provided in the groove, the respective legs of the U-shaped cross section of which are aligned towards one another, whereby the insulating elements together enclose a channel running in the axial direction through which the hairpins extend.
  • the hairpins are inserted into the channel, the longitudinal extension of which runs in the axial direction of the carrier, whereby the hairpins arranged in a common groove are reliably electrically insulated on the circumference by the two insulating elements relative to the carrier.
  • the respective open sides of the U-shaped cross section of the insulating elements are aligned towards one another, so that the legs and the backs of the insulating elements together delimit the channel on the circumference.
  • the insulating element has at least one straight section with a constant wall thickness running in the axial direction and at least one wedge geometry adjoining the straight section in the axial direction.
  • the insulating element when inserted into the groove, can have the straight section in the middle and the wedge geometry adjoining the straight section in the axial direction upwards and another wedge geometry adjoining the straight section in the axial direction downwards. This allows the insulating element to be wedged with another insulating element both in the axial direction upwards and in the axial direction downwards. In this way, several insulating elements can be arranged one above the other in the groove in the axial direction and wedged together via their respective wedge geometries.
  • the at least one insulating element has a stop which can abut against a front side of the carrier and specifies an axial end position of the insulating element. If the coil component has several insulating elements, then at least one of these insulating elements or at most two of the insulating elements can have this stop, with the first of these insulating elements abutting against a first front side of the carrier with the stop and the second insulating element abutting against the second front side of the carrier opposite the first front side.
  • the insulating element having the stop ensures that the hairpins in the associated groove at the end of the groove at which this insulating element is arranged are completely electrically insulated from the carrier up to the front face. This ensures that the hairpins arranged in the groove are completely electrically insulated from the carrier up to the edge of the groove and that the insulating element does not slip into the groove and thus on an outer Electrical contact occurs between the hairpins and the carrier at the edge of the groove.
  • the insulating element is pressed onto the hairpins by means of a separate slot insulation wedge having the wedge geometry.
  • the insulating element does not have the wedge geometry.
  • the insulating element can be a slot insulation paper.
  • This slot insulation paper can have a constant thickness over its entire height in the axial direction.
  • the slot insulation paper can be pressed onto the hairpins by means of the slot insulation wedge having the wedge geometry.
  • the slot insulation wedge is inserted and clamped between the carrier and the insulating element, whereby the insulating element is placed directly on the hairpins and in particular pressed on.
  • the hairpins can thus be insulated in a particularly simple manner using the slot insulation paper, whereby a large-area application of the slot insulation paper to the hairpins and a filling of a gap between the slot insulation paper and the carrier is ensured by the at least one slot insulation wedge. This eliminates the need to fill a gap between the slot insulation paper and the carrier with impregnating resin.
  • the carrier can have an insertion bevel.
  • the invention further relates to a method for producing a coil component for an electric machine of a motor vehicle.
  • the electric machine comprises a carrier which has a plurality of grooves which are distributed in the circumferential direction of the carrier and extend in the axial direction.
  • the coil component can be, for example, a rotor or a stator of the electric machine.
  • a coil component is produced, as has already been described in connection with the coil component according to the invention.
  • the method further provides that the at least one insulating element is supported against the groove wall of the carrier via a wedge geometry, whereby a force acting on the wedge geometry in the axial direction is converted into a force acting in the circumferential direction, by means of which the insulating element is pressed against the hairpins in the circumferential direction.
  • a force acting on the wedge geometry in the axial direction is converted into a force acting in the circumferential direction, by means of which the insulating element is pressed against the hairpins in the circumferential direction.
  • the insulating element prefferably has the wedge geometry or for the insulating element not to have a wedge geometry and for a slot insulation wedge having the wedge geometry to be arranged in the groove, by means of which the insulating element is pressed against the hairpins.
  • the method makes it possible to dispense with the use of an impregnating resin for electrically insulating the hairpins against the carrier. As a result, the risk of failure of the lacquer insulation of the coil due to contact between the impregnating resin and the lacquer insulation can be eliminated. This enables a particularly long service life of the coil component to be achieved.
  • the impregnation resin is omitted and instead a multi-part plastic slot insulation with a wedge-shaped longitudinal wall section is used, which clamps and thus fixes the hairpins in the carrier, in particular in a laminated core, by inserting them into one another.
  • Fig. 1 is a schematic sectional view of a portion of a coil component of an electrical machine in a first embodiment
  • Fig. 2 is an exploded view of hairpins arranged in a groove of a carrier of the electrical machine as well as two insulating elements arranged in this groove according to the embodiment of Fig. 1;
  • Fig. 3 is a schematic perspective view of a portion of the coil component of the first embodiment
  • Fig. 4 is a schematic sectional view of a portion of the coil component in a second embodiment
  • Fig. 5 is an exploded view of a portion of the coil component of the second embodiment
  • Fig. 6 is a schematic sectional view of a portion of the coil component in a third embodiment.
  • Fig. 7 is an exploded view of a portion of the coil component of the third embodiment.
  • the figures show a coil component 10 for an electric machine of a motor vehicle.
  • This electric machine is in particular a traction machine for the motor vehicle, by means of which the motor vehicle can be driven with electrical energy.
  • the coil component 10 is a stator of the electric machine.
  • the stator is a hairpin stator.
  • This hairpin stator comprises a carrier 12, which is in the present case designed as a laminated core.
  • This carrier 12 has a plurality of grooves 14 distributed in the circumferential direction U of the carrier 12, which extend with their longitudinal extension direction in the axial direction A of the carrier 12.
  • the coil component 10 further comprises a plurality of hairpins 16, which are respective phase wires and which are inserted into the grooves 14 of the carrier 12. are.
  • the entirety of the hairpins 16 forms a coil.
  • Each of the hairpins 16 extends over an entire length of the associated groove 14 running in the axial direction A. In the present case, several hairpins 16 are arranged next to one another in each groove 14.
  • the hairpins 16 are arranged one behind the other in a line in the radial direction R of the carrier 12.
  • the radial direction R is perpendicular to the axial direction A.
  • at least one insulating element is provided per groove 14 or several insulating elements are provided per groove 14, by means of which the hairpins 16 are electrically insulated from the carrier 12.
  • FIGS. 4 and 5 show the coil component 10 in a second embodiment
  • FIGS. 6 and 7 show the coil component 10 in a third embodiment.
  • the embodiments differ in particular in the design of the respective insulating elements. All embodiments have in common that the respective insulating elements are braced against the carrier 12 via at least one wedge-shaped geometry, whereby the insulating elements are placed particularly close to the hairpins 16 and in particular over a particularly large area. This enables particularly good heat transfer from the hairpins 16 to the respective insulating elements, whereby the hairpins 16 can in turn be cooled particularly well during operation.
  • All of the embodiments have in common that at least one insulating element is arranged in each of the grooves 14, by means of which the hairpins 16 arranged in this groove 14 are electrically insulated from a groove wall of the carrier 12 that delimits the groove 14, wherein the insulating element is supported against the groove wall of the carrier 12 via a wedge geometry.
  • a force acting on the wedge geometry in the axial direction A is at least partially converted into a force acting in the circumferential direction U, by means of which the insulating element is pressed against the hairpins 16 in the circumferential direction U. Tolerances can be compensated by the pressing acting in the circumferential direction.
  • Figs. 1 to 5 have in common that the at least one insulating element has the wedge geometry.
  • Figs. 6 and 7 it is not the insulating element that has the wedge geometry, but rather there is at least one separately formed insulating element that has the A slot insulation wedge 38 having a wedge geometry is provided in the respective slot 14, by means of which the insulating element is pressed against the hairpins 16.
  • the coil component 10 has two first insulating elements 18.
  • the first insulating elements 18 have a U-shape with a cross-section running perpendicular to the axial direction A.
  • the two first insulating elements 18 are aligned with their respective legs of the U-shaped cross-section towards each other. This results in the two first insulating elements 18 together enclosing a channel 20 in the groove 14 running in the axial direction A on the circumference. All of the hairpins 16 assigned to this groove 14 are arranged in this channel 20.
  • the hairpins 16 arranged in the channel 20 are completely electrically insulated from the two first insulating elements 18 on the circumference to the respective groove walls of the carrier 12 delimiting the groove 14. An electrically conductive contact between the hairpins 16 and the carrier 12 can thereby be particularly reliably avoided.
  • the first insulating element 18 has a collar 22 at one end, through which a stop 24 is provided.
  • the collar 22 rests on a first end face 26 of the carrier 12, whereby the stop 24 strikes the first end face 26 of the carrier 12.
  • an axial end position of the first insulating element 18 in the groove 14 is predetermined.
  • both first insulating elements 18 of the first embodiment each have a collar 22 with a stop 24.
  • the further first insulating element 18 can rest with its collar 22 on a second end face of the carrier 12 opposite the first end face 26, not shown in the figures, whereby the further first insulating element 18 strikes with its stop 24 on this second end face and thus an axial end position is also predetermined for the further first insulating element 18.
  • an axial end position is also predetermined for the further first insulating element 18.
  • the first insulating elements 18 each have a wedge geometry 28.
  • an upper first insulating element 18 in the axial direction A can have a wedge-shaped inner contour
  • the lower first insulating element 18 in the axial direction A has a wedge-shaped outer contour.
  • the wedge-shaped inner contour of the upper first insulating element 18 rests against the wedge-shaped outer contour of the lower first insulating element 18.
  • the wedge-shaped geometries of the first insulating elements 18 are moved along one another.
  • the principle of the inclined plane means that the force acting in the axial direction A is at least partially converted by the wedge-shaped geometries into a force acting in the circumferential direction, whereby the first insulating elements 18 are pressed against each other and against the groove wall and the hairpins 16.
  • air gaps in the groove 14 filled with the hairpins 16 can be reduced or, in particular, completely eliminated. This enables particularly good heat transfer from the hairpins 16 to the carrier 12.
  • two first insulating elements 18 are used in the form of two U-shaped sleeves with a wedge-shaped geometry on the inner contour and on the outer contour, respectively.
  • An axial force is converted into a tangential force via the wedge geometry.
  • This results in a surface pressure between the wedge-shaped areas of the first insulating elements 18, the carrier 12, which is designed in particular as a laminated core, and the phase wires and thus the hairpins 16 when mounted in the axial end position.
  • the wedge geometry can be implemented by a wall thickness taper over the course of the axial direction A and, if necessary, additionally by a wall thickness taper in the radial direction R. It is thus possible to wedge the first insulating elements 18 together in the circumferential direction U.
  • the insulating elements of the first Embodiment and the second embodiment are made of an electrically insulating plastic.
  • the sleeve-shaped first insulating elements 18 are inserted in the axial direction A into the grooves 14 of the carrier 12. Depending on the axial position of the sleeves, a tangential dimension between the sleeves and the phase wires can be adjusted. There is a surface pressure between the wedge-shaped areas of the first insulating elements 18, the laminated core and the phase wires when assembled in the end position, which results in a high tangential force.
  • the coil component 10 of the first embodiment can be dismantled again, can be manufactured in a short cycle time, does not contain any casting resin, has a very high degree of slot filling and enables the phase wires to be centered in the groove 14.
  • first insulating element 18 and at least one second insulating element 30 are arranged in the groove 14.
  • the first insulating element 18 has the collar 22 providing the stop 24, whereby the axial end position of the first insulating element 18 is predetermined.
  • the second insulating element 30 has a straight section 32 running in the axial direction A and two wedge sections 34, which each adjoin the straight section 32 upwards and downwards in the axial direction A.
  • the wedge sections 34 have the wedge geometry. If the cross section of the second insulating element 30 runs perpendicular to the axial direction A, this second insulating element 30 has a U-shaped cross section.
  • the second insulating element 30 has a constant wall thickness in the straight section 32, whereas the wall thickness of the second insulating element 30 in the wedge sections 34 for providing the wedge-shaped Geometry tapered towards the respective ends, in this case an upper end in axial direction A and a lower end in axial direction A.
  • a plurality of second insulating elements 30 can be arranged one above the other in the axial direction A in a respective groove 14 in order to ensure that the hairpins 16 are electrically insulated from the respective insulating elements to the carrier 12 over the entire length of the groove 14 running in the axial direction A.
  • a first insulating element 18 can be arranged at the very top of the groove 14 in the axial direction, followed by one or more second insulating elements 30 in the axial direction A and a first insulating element 18 can be arranged again in the axial direction below.
  • the respective insulating elements arranged one above the other in the axial direction A rest against one another with their wedge geometries in order to enable the insulating elements to be pressed together and with the phase wires designed as hairpins 16 and the respective groove walls delimiting the groove 14 using the principle of the inclined plane by introducing an axial force.
  • the design of the insulation in the groove 14 with the multiple second insulating elements 30 enables these second insulating elements 30 and the at least one first insulating element 18 to be particularly easily injection molded, since a length of the respective insulating elements running in the axial direction A can be adapted for an injection molding process. This means that the lengths of the insulating elements are selected such that they can be manufactured particularly easily in an injection molding process. This enables particularly easy manufacture of the respective insulating elements and particularly high stability of the insulating elements.
  • a trapezoidal slot insulation is used as the second insulating element 30, with a bevel towards the respective end faces of the carrier 12, in particular the laminated core.
  • U-shaped sleeves with a wedge-shaped geometry can be arranged on the respective end faces of the carrier 12, which in this case are designed in a similar shape to the first insulating elements 18 described in connection with the first embodiment.
  • a surface pressure occurs between the wedge geometries of the slot insulation and the phase wires when mounted in the axial end position.
  • the surface pressure results in a particularly high tangential force. Since no slot insulation paper is used in this second embodiment, there is no risk of the slot insulation paper protruding.
  • the coil component 10 of the second embodiment is particularly easy to dismantle, does not contain any casting resin, can be manufactured in a particularly short cycle time, has a very high slot filling level and enables the phase wires to be centered in the respective slot 14.
  • FIG. 6 and 7 show the third embodiment of the coil component 10, in which the respective hairpins 16 are insulated from respective groove walls of the carrier 12 that delimit the associated groove 14 by means of a slot insulation paper 36 as an insulating element.
  • the slot insulation paper 36 extends in the axial direction A over the entire height of the groove 14, whereby the hairpins 16 arranged in the groove 14 are electrically insulated from the carrier 12 over the entire height of the groove 14.
  • the slot insulation paper 36 has a constant wall thickness over its entire extent.
  • respective slot insulation wedges 38 are provided, which have the wedge geometry.
  • the slot insulation wedges 38 are each inserted into the respective slot 14 between the slot insulation paper 36 and the wall delimiting the slot 14. This means that the slot insulation wedges 38 rest against both the slot wall delimiting the slot 14 and the slot insulation paper 36.
  • the respective side surfaces resting on the slot insulation paper 36 and the groove wall converge at an acute angle in the axial direction A. In this case, a pointed edge of the slot insulation wedge 38 is aligned in the axial direction A towards a center of the carrier 12.
  • At least two slot insulation papers 36 are arranged in each slot 14 on opposite sides of the hairpins 16 in the circumferential direction U.
  • the hairpins 16 are thus electrically insulated from the carrier 12 by a slot insulation paper 36 on their side surfaces opposite one another in the circumferential direction U.
  • two slot insulation wedges 38 are thus provided per slot 14 and per end face of the carrier 12.
  • the two slot insulation wedges 38 per end face press the slot insulation paper 36 as a third insulating element onto the phase wires of the coil component 10.
  • An axial force when clamping the slot insulation wedges 38 is converted into a tangential force acting in the circumferential direction U.
  • the slot 14 can have a respective insertion bevel 40 for each slot insulation wedge 38 on the respective end faces of the carrier 12.
  • the tangential dimension between the slot insulation wedges 38 and the phase wires can be adjusted on the respective end face of the carrier 12.
  • the slot insulation paper 36 does not protrude.
  • the coil component 10 of the third embodiment is particularly easy to dismantle, does not contain any casting resin, can be manufactured in a particularly short cycle time, has a very high slot filling level and enables the phase wires to be centered in the slot 14.
  • the invention shows how a wedge-shaped slot insulation can be used for stator windings of electrical machines.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

L'invention concerne un composant de bobine (10) pour une machine électrique d'un véhicule automobile, comprenant un support (12) qui comporte une pluralité de fentes (14) qui sont disposées de manière répartie dans la direction circonférentielle (U) du support (12) et s'étendent dans la direction axiale, une pluralité d'épingles à cheveux (16) dont au moins des régions sont disposées dans les fentes (14), et au moins un élément isolant disposé dans l'une des fentes (14), permettant aux épingles à cheveux (16) disposées dans cette fente (14) d'être isolées électriquement d'une paroi de fente, délimitant la fente (14), du support (12), l'élément isolant (18, 30, 36) étant supporté contre la paroi de fente du support (12) par une géométrie cunéiforme (28), ce qui permet de convertir une force agissant sur la géométrie cunéiforme (28) en une force agissant dans la direction circonférentielle (U), et de presser l'élément isolant (18, 30, 36) sur les épingles à cheveux (16) dans la direction circonférentielle (U).
PCT/EP2023/079865 2022-11-16 2023-10-26 Composant de bobine pour une machine électrique d'un véhicule automobile et procédé de fabrication d'un composant de bobine WO2024104753A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022130338.1 2022-11-16
DE102022130338.1A DE102022130338A1 (de) 2022-11-16 2022-11-16 Spulenbauteil für eine elektrische Maschine eines Kraftfahrzeugs sowie Verfahren zum Herstellen eines Spulenbauteils

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Publication Number Publication Date
WO2024104753A1 true WO2024104753A1 (fr) 2024-05-23

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PCT/EP2023/079865 WO2024104753A1 (fr) 2022-11-16 2023-10-26 Composant de bobine pour une machine électrique d'un véhicule automobile et procédé de fabrication d'un composant de bobine

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WO (1) WO2024104753A1 (fr)

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JPS5734146U (fr) * 1980-08-01 1982-02-23
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WO2022033627A1 (fr) 2020-08-11 2022-02-17 Schaeffler Technologies AG & Co. KG Composant de bobine présentant un élément de fermeture sans contact direct avec le support ; et machine électrique
DE102020215913A1 (de) * 2020-12-15 2022-06-15 Valeo Siemens Eautomotive Germany Gmbh Statorkern, Anordnung mit einem Statorkern und mit Nutauskleidungen, Stator, elektrischer Maschine und Fahrzeug

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JP6805093B2 (ja) 2017-02-13 2020-12-23 株式会社三井ハイテック 固定子積層鉄心の製造方法及び固定子積層鉄心
JP7139933B2 (ja) 2018-12-19 2022-09-21 株式会社アイシン 電機子および電機子の製造方法
DE102020118014A1 (de) 2020-07-08 2022-01-13 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Stator und Verfahren zum Herstellen eines Stators einer elektrischen Maschine
US20230163652A1 (en) 2021-11-19 2023-05-25 Ford Global Technologies, Llc Stator core with cuffed slot liner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208805B (de) * 1962-12-29 1966-01-13 Alsthom Cgee Anordnung zur Verkeilung der Wicklungsstaebe in den Nuten umlaufender elektrischer Maschinen
DE2153551A1 (de) * 1970-11-02 1972-05-10 Asea Ab Einrichtung zum Festhalten eines Wicklungsstabes in tangentialer Richtung in einer Wicklungsnut einer rotierenden elektrischen Maschine
DE2656373A1 (de) * 1976-12-13 1978-06-15 Chutorezkij Stator einer elektrischen maschine
JPS5734146U (fr) * 1980-08-01 1982-02-23
EP1638190A1 (fr) * 2004-09-15 2006-03-22 Siemens Aktiengesellschaft Dispositif pour fixer des barres conductrices dans les encoches des machines électriques
WO2022033627A1 (fr) 2020-08-11 2022-02-17 Schaeffler Technologies AG & Co. KG Composant de bobine présentant un élément de fermeture sans contact direct avec le support ; et machine électrique
DE102020215913A1 (de) * 2020-12-15 2022-06-15 Valeo Siemens Eautomotive Germany Gmbh Statorkern, Anordnung mit einem Statorkern und mit Nutauskleidungen, Stator, elektrischer Maschine und Fahrzeug

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