Abstract: A locking wedge for a slot of a dynamoelectric machine is provided. The locking wedge has a main body extending in an axial direction, and includes a top and a bottom surface. The bottom surface has a greater surface area than the top surface. A first end surface faces towards an axial-inward direction and a second end surface faces towards an axial-outward direction. A locking slot extends in the axial direction into a portion of the main body, and begins in the second end surface and extends axially inward. A locking member is disposed to fit into the locking slot, and is inserted into the locking slot to lock the locking wedge in the slot.

Abstract: A spool carrier has a winding body with a shell having a trapezoidal cross section with two substantially right angles and one acute angle, wherein the spool wire is guided on the obtuse angle edge of the winding body, beginning parallel to the front face edges of the winding body, along the side surface adjoining the obtuse angle edge, around the winding body, to the acute angle edge of the winding body, and guided on the front face from the acute to the obtuse angle edge at an angle to the front face edge, such that it comes to rest on the obtuse angle edge in one winding step directly adjacent to the winding wire of the previous winding, and in one winding step in the next adjacent groove between two windings of the previous layer, or optionally between the flange and the winding of the previous layer.

Abstract: An exemplary slot closure arrangement has a sliding block and a pressure piece. At least one spring element is arranged in between them and can be prestressed by at least one attachment, which interacts with the sliding block and the pressure piece, thus creating a prefabricated assembly. Once the slot closure arrangement has been positioned in a slot, the attachment can be mechanically moved from a first position to a second position, which can be monitored, after positioning of the slot closure arrangement, for activation of the spring forces of the at least one spring element.

Abstract: An interphase insulating member allowing reduction in size of a rotating electric machine is provided. The interphase insulating member includes a flat portion interposed between and insulating neighboring two phases of coil ends, and a three-dimensional portion protruding from the flat portion and guiding the coil. On a surface of the flat portion, epoxy resin layer is provided as a reinforcing member.

Abstract: An apparatus and method for providing electrical insulation between adjacent end turns at different phases within a stator assembly. In one embodiment, the invention is directed to a stator assembly comprising: a stator core having a plurality of slots; at least two coils of different phases wound on the stator core through the slots and having an end turn that extends from the stator core; and one or more separator members positioned between adjacent end turns of the coils.

Abstract: A laminated stator and a method for making a laminated stator of an electric motor. The method includes arranging a plurality of stator laminations into lamination stacks spaced axially from one another, each lamination stack including a first group of stator laminations including an annular portion and a plurality of tooth portions extending from a periphery of the annular portion, and a second group of stator laminations including only tooth portions positioned to correspond with the tooth portions of said first group. The method further includes winding stator windings around selected subsets of the plurality of teeth while the lamination stacks are spaced axially and meshing the lamination stacks with one another so the annular portions of the lamination stacks are axially adjacent one another and the plurality of teeth are intermeshed with the plurality of another stack.

Abstract: A method for reducing leakage currents in an electric machine is described. The method includes positioning a plurality of leakage current shields between windings and teeth of a stator, and coupling at least one of the plurality of leakage current shields to a reference point, wherein an electric potential at the reference point is not earth ground.

Abstract: A rotor assembly is disclosed for use with an alternator. The rotor assembly includes a bobbin assembly, a claw pole assembly having an integrated hub on which the bobbin assembly is positioned, a shaft that is received in the claw pole assembly, and a slipring assembly connected to the shaft. The bobbin assembly includes thin first and second end caps, a metal sleeve, a ring of inner tape, a field coil, and a ring of outer tape. The first and second end caps each have inner and outer flaps. The inner flaps are folded inwardly so that the end caps fit over the metal sleeve. The ring of inner tape is wrapped around the inner flaps of both end caps to adhere the first and second end caps to the metal sleeve. The field coil is wrapped around the inner ring of tape, inner end caps, and metal sleeve. The outer flaps on the end caps are inwardly folded around the field coil. The ring of outer tape is adhered to the folded outer flaps and the field coil.

Abstract: A method of manufacturing a stator in a rotating electric machine. In this method, each slot has a slot peripheral wall and a slot opening, covered with an insulation coating made of an electrical insulation material. The slot peripheral wall SW has a slot bottom wall, a pair of slot side walls opposing to each other and continuing to end portions of the slot bottom wall. The insulation coating is formed continuously from the slot bottom wall to the pair of slot side walls, and a pair of holding grooves opposing to each other is formed in the insulation coating at the vicinity of the slot opening. The groove walls of the pair of the holding grooves are formed in the insulation coating, and an electrical insulation member to close the slot opening is inserted in the pair of holding grooves and held between the pair of holding grooves.

Abstract: According to one embodiment, a rotary machine stator includes a cylindrical stator core, an insulating film, and a ring-shaped insulator. The stator core includes a slot and a slot opening. The insulating film is formed cylindrical to be in close contact with the inner surface of the slot. The insulating film includes a gate on both ends that is bent to form a film opening as wide as or wider than the slot openings. The insulating film is inserted in the slot such that a film axial direction end of the insulating film protrudes from an axial direction end of the stator core. The insulator is attached to both ends of the stator core. The insulator includes an insulator slot and an insulator opening in substantially the same shape as the slot and the slot opening, respectively, and a lock to lock the film axial direction end.

Abstract: Systems and methods for reducing or preventing partial discharge between turns of a single coil within an electric motor by placing insulating barriers between different pluralities of wire turns in a single coil. One embodiment comprises an electric motor. The motor includes a rotor and a stator, where the stator has multiple coils of wire that are positioned in passageways in the stator to form electromagnets. Each wire coil has multiple wire turns, and insulating barriers are positioned between different sets of wire turns within the coil. In one embodiment, the stator includes a slot liner in each passageway to electrically isolate all of the wire turns in each coil from the walls of the passageway. The wire coils may be formed with wire that has an insulating coating which is separate from the insulating barriers.

Abstract: An electric motor includes a rotor and a stator assembly concentrically located about the rotor. The stator assembly includes a stator stack and a plurality of spaced apart stator teeth extending radially from the stator stack. The plurality of stator teeth define a plurality of stator slots. A plurality of slot liners are each inserted within a respective one of the stator slots. The slot liners are each formed from a length of extruded dielectric material. A method of manufacturing the electric motor includes inserting the extruded slot liners into the stator slots, then inserting a plurality of conductors into the respective one of the plurality of cavities that are defined by the extruded slot liner.

Abstract: An accessory strap fixing structure is disposed on a portable electronic device to assemble a accessory strap. The accessory strap fixing structure includes an assembling slot and a rotor. The assembling slot is recessed on the portable electronic device. The rotor is rotatably assembled within the assembling slot and divides the assembling slot into two opening portions to assemble the accessory strap. The invention also discloses a portable electronic device having the accessory strap fixing structure.

Abstract: At a time of a heating high-load operation, a harmonic current is flown in an armature winding to induction-heat rare-earth magnets, thus reducing a residual magnetic flux density. Thereby, the number of rotations of a radial gap type motor is improved. The rare-earth magnets are provided near a cooling medium passage extending substantially in parallel with a flow line of a cooling medium, so that the cooling medium recovers heat of the heated rare-earth magnets. At a time of a cooling high-load operation, a greater number of rotations are obtained with respect to the same torque command value, by a field weakening control by means of a current-phase advance.

Abstract: Disclosed herein is a brushless motor that is simply constructed based on a vernier type motor to achieve high torque without the increase in size and complication thereof. The brushless motor includes a rotor having magnetized surfaces alternately magnetized as N and S poles and a stator having salient poles. The salient poles have tip end surfaces opposite to the magnetized surfaces in the radial direction. Grooves and protrusions are alternately formed at the tip end surfaces of the salient poles in the rotational direction. The grooves and the protrusions extend in the axial direction and have a width in the rotational direction approximately equal to that of the N pole or the S pole. Magnetic bodies are disposed in gaps defined between the grooves and the magnetized surfaces in a non-contact fashion. A magnetic connection member is spaced apart from the stator to interconnect the magnetic bodies.

Abstract: In a motor, axially upper and lower end surfaces of the stator core are substantially covered by a first insulator and a second insulator, both of which are made of resin. A boss is arranged circumferentially between two neighboring teeth. Three bosses are arranged at three out of four positions defined between any two neighboring teeth. A conductor pin is inserted into each boss along an axial direction. The boss includes a hole extending axially upward from the axially lower end thereof, in which a conductor pin is fitted. An axially lower position of the conductor pin axially downwardly protrudes from the boss. The conductor pin is inserted into each of the notched portions arranged to the circuit board, and is soldered with the circuit board such that the conductor pin and the circuit board are electrically connected.

Abstract: A stator for a rotary electric machine with wedge members insertable into slots without being bent or folded is provided. A coupling portion is integrally formed at a non-inserted end portion, which is not inserted into a slot, of a wedge member, the coupling portion extending across an end of a partition wall portion and an end of a block portion. The wedge member and the coupling portion are formed of a synthetic resin material. Two or more coupling portions of two or more adjacently disposed wedge members are integrally formed as a continuous coupling portion.

Abstract: According to one embodiment, there is provided a rotating electrical machine including a core, a coil extending from the core, and an electromagnetic shield which is provided outside the core, and has a plurality of shoulders projecting toward the coil. The coil includes an insulator covering outside of a conductor, a resistance layer formed on a surface of the insulator and contacting the core, and at least one potential grading layer formed on a surface of the insulator adjacent to the resistance layer. A boundary between the resistance layer and potential grading layer is provided at a position farther from the core than a point on a surface of the coil, where a distance between the coil and a shoulder of the electromagnetic shield closest to the core is the shortest.

Abstract: An armature for an electric motor has a lamination stack on a shaft with a commutator mounted on one end of the shaft. Magnet wires wound in slots in the lamination stack, the commutator and armature shaft are at least partially encapsulated in thermoset. The commutator has a commutator ring divided into a plurality of segments with slots between the segments that are filled with a second plastic when the commutator is made by molding a core of the second plastic, such as phenolic, in the commutator ring before the commutator ring is mounted on the armature shaft. Prior to molding the thermoset, the commutator ring is sealed. The seal prevents the thermoset from flowing into the slots between the commutator ring segments or over the commutator ring.

Abstract: An assembly for providing electrical insulation in a stator core of a vehicular electric machine is provided. The stator core has a channel and the assembly comprises a first conductive element disposed through the channel, and a second conductive element disposed through the channel and substantially adjacent to the first conductive element. The assembly also comprises a first electrically insulating film having a first end residing between the first and second conductive elements.

Abstract: A rotary electric motor includes a cylindrical rotor having an outer peripheral side, a stator provided to surround the outer peripheral side of the rotor with a gap between the stator and the rotor, and a load side bracket having a recess and provided on a load side of the stator. The stator includes stator coils and a stator core having teeth portions around which the stator coils are wound. A load side coil end of each of the stator coils protrudes from a load side end face of the stator core. At least two of an inner peripheral surface, an outer peripheral surface, and an end face of the load side coil end contact an inner surface of the recess via an insulator.

Abstract: The present invention relates to a fan motor is for forced circulation of cool air in the refrigerator and comprises a molding unit, a shaft bearing unit, a rotor and an end cap. The molding unit comprises a stator having a shaft bearing unit mounting hole in the center thereof and core teeth which protrude radially outward so that a coil is wound thereon; and a circuit board having a circuit and a device which are electrically connected to the coil of the stator. The shaft bearing unit is inserted and fixed in the shaft bearing unit mounting hole. The rotor has a magnetic ring formed on the inner surface of a cup-shaped rotor housing, and a rotating shaft is fixed at the bottom center of the rotor housing. The end cap whose edge is connected to a side wall of the molding unit covering the rotor.

Abstract: The invention relates to a stator with a plurality of field coils, wherein the yoke teeth, which bear the field coils, of the poles are connected with their free ends to a stator ring, and wherein adjacent pole shoes or poles are connected to one another.

Abstract: The present invention relates to an axial motor, and more specifically, to an axial motor which has a simple structure and is easily assembled by inserting and holding core teeth in core teeth insertion holes circularly arranged on a yoke. The axial motor according to the present invention includes: a stator having core teeth which are insulated by insulators, arranged in a ring-shaped pattern, and have a coil wound thereon; and a rotor having magnets which are arranged in a ring-shaped pattern to face the ends of the core teeth in an axial direction and are supported by the rotor axis at the center of the rotor to rotate relatively with respect to the stator.

Abstract: A rotor for a generator includes a cylindrical rotor body with axial winding slots which are arranged in a distributed manner over the circumference and in which are arranged conductor elements which extend in the axial direction. A cooling medium from a sub-slot which is arranged at the bottom of the winding slot is fed along the axis in periodic intervals to the conductor elements. Beneath the conductor elements provision is made for ripple springs which in each case press the conductor elements of a winding slot against a slot wedge which closes off the winding slot at the top. With such a rotor, an adequate spring force is achieved by the ripple springs being arranged at the bottom of the sub-slot and, via an axial profile which is arranged in the sub-slot, acting by their spring force upon the conductor elements which lie above them.

Abstract: A component for an electric machine includes a spool having a main body portion provided with a first end portion that extends substantially uninterrupted to a second end portion through an intermediate portion. A plurality of mounting elements are provided on the first end portion. A star member is operatively connected to the spool. The star member includes a main body, a plurality of flap members that extend from the main body and collectively define a central opening, and a plurality of mounting members that extend into the central opening. The plurality of mounting members engage with corresponding ones of the plurality of mounting elements to detachably mount the star member to the first end portion of the spool.

Abstract: A stator assembly is provided and includes a laminated core and a one-part insulator having cover walls for covering edges of the laminated core, wherein first projections and a second projection both having a height smaller than the difference between the height of the cover walls and the thickness of the laminated core are formed on one side surface of the insulator in such a manner as to make contact with a part of one axial end side surface of the laminated core, whereby a gap which corresponds to the projection distance of the first and second projections and which serves as a clearance space for chips scraped by the edges of the laminated core from the surfaces of the cover walls is provided between the insulator and the laminated core, resulting in ensuring that the insulator is snap-fitted on the laminated core in good shape.

Abstract: A plurality of stator teeth 2 are arranged at a constant interval in a circumferential direction on the inner circumferential face side or the outer circumferential face side of a ring-shaped stator core 1 that is made of a plurality of steel plates. The winding wire 5 is wound about the stator teeth. An insulator 4 that electrically insulates the stator core and the winding wire is provided therebetween. A gap 6 is formed between the winding wire and the insulator. Accordingly, a desired distance can be secured between the stator teeth and the winding wire regardless of the thickness of the insulator, and, thus, the influence of leakage magnetic fluxes that acts on the winding wire can be reduced. Accordingly, the influence of leakage magnetic fluxes formed near the stator teeth that acts on the winding wire can be reduced regardless of the thickness of the insulator.

Abstract: A stator assembly includes a stator core and at least one conductive bundle. The stator core has a first end, a second end, and a plurality of slots extending from the first end to the second end. The conductive bundle includes a plurality of individually insulated conductive wires. At least one portion of the at least one conductive bundle extends from the first end to the second end of one slot of the plurality of slots. The at least one portion is twisted by a predetermined amount within the one slot to minimize a circulatory current along the plurality of individual insulated conductive wires in the at least one portion.

Abstract: A stator for a motor of a compressor includes a stator core, an insulator fitted on an axial end face of the stator core, and coils wound around the stator core and the insulator. The insulator has an annular portion, a plurality of circumferentially arranged tooth portions projecting radially inwardly from an inner peripheral surface of the annular portion, and a cylindrical-shaped wall section erected on an axial end face of the annular portion. The coils include crossover wires routed on an outer peripheral surface of the wall section of the insulator so as to extend obliquely relative to a plane orthogonal to an axis of the stator, as viewed in a direction orthogonal to the axis.

Abstract: An interphase insulative structure for a motor. The motor includes a stator core, a plurality of teeth arranged along an inner circumference of the stator core, and first to third phase windings wave wound to the stator core. The interphase insulative structure includes first interphase insulators and second interphase insulators. The first and second interphase insulators are connected between adjacent coil end conductive portions of the second winding at least at a second end of the stator core.

Abstract: This invention relates to an improved process for removing conductors and electrical insulation parts from electrical device components so that these devices can be refurbished with new insulation and conductors. This invention also relates to an electrical device component having an electrical winding support, a laminate electrical insulation part, an electrical conductor, and an encapsulating resin, that has a special laminate electrical insulation part that allows more efficient and environmentally friendly refurbishing.

Abstract: An electric motor core member includes a body having an inner diametric portion including an inner arcuate surface and an outer diametric portion including an outer arcuate surface. The electric motor core member further includes a plurality of wall members provided on the main body. Each of the plurality of wall members projects outwardly from the outer arcuate surface and is arranged in a spaced relationship to define a plurality of conductor isolation channels. Each of the plurality of conductor isolation channels is adapted to receive one of a plurality of conductors with the plurality of wall members providing electrical isolation between adjacent ones of the plurality of conductors.

Abstract: A stator for an electric machine, having compacted and bonded windings and a ferromagnetic core including an active element and a cooling element. The compacted and bonded windings are inserted in slots between teeth in the active element, and the cooling element mates with the active element at the tips of the teeth to close the slots over the windings.

Abstract: Disclosed are a motor including a stator and a rotor separated from each other in an axial direction and a washing machine having the motor. Teeth made of a member formed separately from bobbins formed on the stator are installed on the bobbins. Therefore, the teeth are installed on the bobbins after a wire is wound on the bobbins.

Abstract: A stator core for a generator includes a multiple of core laminations along an axis, each of the multiple of core laminations define at least one leg which extends in a radial direction from the axis.

Abstract: In an insulator to be inserted into each slot to be attached to adjacent teeth formed at a rotor or a stator of an electric rotating machine, the insulator is composed of insulator segments that are made divisible in a longitudinal direction parallel to a rotational axis of the rotor at a position corresponding to 2 slots and are made divisible in a lateral direction perpendicular to the rotational axis of the rotor, the insulator segments have surfaces to be coupled to each other of a same shape in the lateral direction, and the insulator segments have a creepage distance that is made longer than a distance in the lateral direction, thereby enabling to elongate the creepage distance and to improve work efficiency.

Abstract: A rotating electric machine for driving a vehicle includes: a stator that comprises a stator core in which a plurality of slots extending in a direction of a rotation axis are arranged circumferentially and a stator coil inserted into the slots; and a rotor that is rotatably provided in the stator through a gap, wherein: the stator coil is constituted with conducting wires, and a cross section of a protruding portion of each of the conducting wires that protrudes from the slots in a coil end portion of the stator coil is formed into a substantially trapezoidal shape.

Abstract: An insulator structure of a motor, includes: a stator core having a plurality of protruding tooth portions which are disposed along an inner periphery of the stator core or an outer periphery of the stator core; a pair of first and second insulators respectively mounted to a first end portion and a second end portion in an axial direction of the stator core, wherein a plurality of cover portions are provided for each of the pair of the first and second insulators so as to cover the plurality of the respective tooth portions; and a winding wound around a tooth portion of the tooth portions covered with the respective cover portions, the winding being capable of causing a magnetic force to the tooth portion by an energizing; wherein with the pair of the first and second insulators, the cover portion's second head end portion in an axial direction of the first insulator in the axial direction and the cover portion's first head end portion in an axial direction of the second insulator in the axial direction mate

Abstract: An objective is to provide a motor stator that may achieve: a reduction in parts costs by shaping coil ends so that length thereof is reduced, thereby reducing the amount of use of copper, and minimizing the amount of use of binding strings for securing the coil ends in place; a reduction in manufacturing process costs by a structure which allows a protector and a wire lead outlet part to be easily assembled; and then an improvement in quality of a stator by firmly holding the coil ends and the protector.

Abstract: A gas treatment machine includes a main gas treatment circuit, connected to a gas compression chamber, a gas compressor, mounted in the compression chamber, a rotating electrical machine, for driving the gas compressor, including at least one coil for the flow of electric current for generating a magnetic flux, and a secondary cooling circuit, transporting gas from the compression chamber to the rotating electrical machine, for cooling this rotating electrical machine. The coil includes at least one toroidal core formed from a rolling of a plurality of turns (20) each consisting of at least one conductor (22) insulated over the length thereof by a primary insulator (24), the rolling which forms the toroidal core in turn being covered with a secondary insulator (26), the primary insulator (24) and the secondary insulator (26) including PolyEtherEtherKetone.

Abstract: A cassette coil comprising an insulator bobbin including a core tube around which a wire coated with an insulating film is wound, forming a coil, and a pair of plate-shaped flanges provided at both ends of the core tube, the flange including a cutout portion opening in a side, wherein the cassette coil includes an insulation wall between a winding start part which is one end of the coil of the wire and an outermost wire part located on the outermost side of the coil of the wire and close to the flange.

Abstract: A stator assembly includes a stator stack and a plurality of conductors extending from the stator stack. An isolator/assembly ring is located on the stator stack. The isolator/assembly ring includes a plurality of inwardly protruding fingers. A method of assembling the stator assembly includes threading the plurality of conductors through the stator stack such that each of the plurality of fingers on the isolator/assembly ring is located between respective ones of the plurality of conductors.

Abstract: The invention relates to a cooling device for an electric machine, in particular, for an electric motor comprising a stator (2) and a rotor. According to the invention, axial channeled recesses (6) are provided on the outside of the stators (2), in which a cooling tube or cooling hose may be introduced and/or which may be sealed by means of a cover (10) to give a cooling air channel, an electric motor with such a cooling device and a core sheet (4) for a lamination bundle of a stator (2), the core sheet (4) comprising amongst other things a number of stator grooves (5). The core sheet (4) comprises recesses (6) with a channel cross-section on the outer edge thereof. The invention further relates to an electric machine the stator (2) of which has a lamination bundle made up of a plurality of such core sheets (4). The invention also relates to a production method for such electric machines. The cooling tubes or cooling hoses can be simply inserted in the half-open channeled recesses from without for cooling.

Abstract: A stator core for a rotary electric machine is provided. The stator includes an annular stator core having a plurality of slots punched and arranged in the circumferential direction, being straight in the axial direction, and a stator winding consisting of wire members. The wire members have respective straight portions accommodated in respective slots. Each of the wire members has a conductor portion having a rectangular cross section and an insulating coating covering the conductor portion. An adhesive member is provided between each of the straight portions and the wall surface of each slot. In each slot, the adhesive member adheres the straight portions to the wall surface. Thus, the stator core can maintain the space factor of the wire members accommodated in each slot and suppress vibration of the wire members during the operation of the rotary electric machine to reliably reduce generation of peculiar noise or magnetic noise.

Abstract: When a rotating electrical machine winding is inserted into a slot with a protective insulation intervening between them, a semiconductive insulating layer is lap-wound between an interlayer insulating layer of the rotating electrical machine winding and the protective insulation, the semiconductive insulating layer being formed by center-folding a continuous semiconductive sheet in the longitudinal direction. A thermal stress relaxation layer is provided inside the center-folded continuous semiconductive sheet so that thermal stress exerted in thickness direction of the insulating layers is absorbed.

Abstract: A stator for an electrical machine includes a back iron including a substantially cylindrical annular structure having an inner surface and an axis. A plurality of supports are fabricated of non-magnetic material, each support extending parallel to the axis of the annular structure along the inner surface of the annular structure, each support including a primary base and at least two primary support members. The primary bases substantially conform to the inner surface of the back iron with the primary support members extending radially inward from the primary base towards the axis of the annular structure. A stator winding is positioned between the at least two primary support members and between the primary base of the support and the axis of the annular structure.

Abstract: A stator of an alternating current (AC) motor is disclosed. The stator includes a stator core having a divided structure including and an outer stator core fitted around the inner stator core while being connected to an inner circumference of the inner stator core. The inner stator core has a rotor insertion hole formed at the inner circumference of the inner stator core and a plurality of tooth members arranged in a circumferential direction at an outer circumference of the inner stator core. Since the coils are wound directly on the tooth members through intervals between the neighboring tooth members at the outer circumference of the inner stator core, manufacturing of the stator is facilitated. In addition, since insertion of the coils into the slots is not performed through gaps formed on an inner side of the inner stator core where the rotor insertion hole is formed, the gaps may be minimized. As a result, the performance of the AC motor is improved.

Abstract: Stator designs have wide-mouth slots between adjacent poles. Wire coils with high slot fill conductivity are formed around the poles. In some designs, the wire coils are wave wound around the poles. Thick bar conductors can be used for making the wire coils. The wire coils may be inserted using nozzle dispensers or transferred from a pre-form mandrel. In other designs, the wire coils are pre-formed on transferable pockets that are then mounted on the poles. Optional pole extensions or shoes can be attached to the stator poles after the wire coils are formed around the poles.

Abstract: The invention relates to an electrical machine (1) comprising a base body (2) having two axial front sides (4) and grooves (7) for receiving electrical conductors of a winding system (9). An end disk (5) comprising axially protruding deflecting journals (6) is respectively arranged on each front side (4). The electrical conductors of the winding system (9) are wound around the deflecting journals (6) such that a winding head is respectively formed on each front side (4). The winding system (9) comprises a plurality of partial windings (12) which are axially adjacently arranged, at least in sections, in the vicinity of the winding heads.; An electrically insulating separating layer (14) consisting of a matt-type material which is flexible at least in a basic state is provided in an overlapping region (13) between two partial windings (12) axially adjacently arranged in the vicinity of the winding heads.