AT524754A1 - machine part - Google Patents

Abstract

The invention relates to a machine component (2, 3) in the form of a stator or rotor for an electrical machine (1), with a laminated core (5) in which a number of slots (9) are arranged, with a number of N ≥ 2 is arranged on electrical conductors (10) which are electrically insulated from one another and from the laminated core (5) by means of an insulating layer (14). At least one of the electrical conductors (10) arranged per slot (9) is formed by a number n of subconductors (17), the subconductors (17) being arranged running parallel to one another and being electrically insulated from one another by an intermediate insulating layer (18), wherein a layer thickness (19) of the intermediate insulating layer (18) is smaller than a layer thickness (19) of the insulating layer (14) between the electrical conductors (10) in the radial direction (7) of the grooves (9).

Description

extends over an overall height of the laminated core.

The invention further relates to an electrical machine comprising a stator

and a rotor.

In addition, the invention relates to a method for producing a machine component in the form of a stator or a rotor for an electrical machine, comprising the steps: providing a laminated core which extends in an axial direction, a radial direction and a circumferential direction and in which a plurality of slots are arranged, wherein the grooves extend in the axial direction and the radial direction of the laminated core and are arranged next to one another and spaced apart from one another in the circumferential direction of the laminated core, providing a number N > 2 of electrical conductors which have an insulating layer for electrically insulating the electrical conductors from one another, wherein the

Insulation layer over the entire conductor circumference and in the axial direction

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Contacting the electrical conductors.

In principle, such electrical machines and the stators and rotors used for them are known from the prior art, so that reference is made to this relevant prior art for further details. An electrical machine can preferably also include a rotor, which can be arranged, for example, on a rotatable shaft so as to be non-rotatable. During operation of an electric machine, e.g. designed as an electric motor, the rotor is set in rotary motion due to the generated magnetic fields. In principle, however, the stator can also be used without a rotor to generate a rotating field.

settable.

Stators for electric motors include electric coils, which are designed in the form of windings around an electrically and magnetically conductive core and generate a magnetic field in the stator core when current flows through the coils, which is required to drive the electric motor. These windings can be produced, for example, by inserting U-shaped conductor elements or bar-shaped conductor elements into the stator core and connecting the conductor elements provided to form windings. Usually

several electrical conductors are arranged per slot.

The electrical voltage, which is sometimes quite high and which is present at the individual electrical conductors during operation, can lead to the formation of an electrical contact between the conductors and/or to the laminated core. In order to avoid this, it is necessary to insulate the electrical conductors from one another and from the laminated core, as is known to those skilled in the art. For example, describes the

EP3 043 355 A1 Electrical conductors with an outer insulating layer which is formed from a thermoplastic material. A duroplastic layer, which is thinner than the thermoplastic layer, is arranged between the conductors.

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reached.

The object of the present invention is to improve the efficiency of an electrical machine

seem to improve.

The object of the invention is achieved with the machine component mentioned at the outset, in which it is provided that at least one of the electrical conductors arranged per slot is formed by a number n of sub-conductors, the sub-conductors being arranged running parallel to one another at least in the slots, and by a Intermediate insulating layer are electrically isolated from each other, wherein a layer thickness of the intermediate insulating layer is smaller than a layer thickness of the insulating layer between the electrical conductors in the radial direction

grooves.

Furthermore, the task is performed with the electrical machine mentioned at the outset.

dissolves, which has the machine component according to the invention.

In addition, the object of the invention is achieved with the method mentioned at the outset, according to which at least one of the electrical conductors arranged per slot is formed from a number n of subconductors, with the subconductors being arranged running parallel to one another at least in the slots and electrically insulated from one another by an intermediate insulating layer be, wherein a layer thickness of the intermediate insulating layer is selected to be smaller than a layer thickness of the insulating

onsschicht between the electric conductors in the radial direction of the slots.

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be improved in part or the electric machine equipped with it.

To further improve these effects, it can be provided according to embodiment variants of the invention that the number | of sub-conductors per electrical conductor is selected from a range of 2 to 5 and/or that the number of sub-conductors per slot is selected from a range of 2*N to 5*N. With a number of more than five subconductors per electrical conductor, on the one hand the cost of manufacturing the machine component is excessively increased, and on the other hand the fill factor of the slots is reduced too much due to the increase in space required for an additional intermediate insulating layer, so that a further increase in the number of subconductors is not possible a further increase in efficiency (to the desired extent). It is also advantageous if each of the N electrical conductors is subdivided into subconductors, so that the effects mentioned apply to each of the conductors arranged in the slots.

Neten electrical conductors can be realized.

According to a further embodiment variant of the invention, to improve the slot filling factor, it can be provided that a layer thickness of the intermediate insulating layer is between 1% and 20% of the maximum layer thickness of the insulating layer. With a layer thickness of less than 1% of the maximum layer thickness of the insulation layer, the insulating effect of the electrical insulation between the sub-conductors is reduced. With a layer thickness of more than 20% of the maximum layer thickness of the insulation layer, the radial expansion of the electrical conductor(s) becomes too large without further improving the electrical insulation of the subconductors from one another or without a further increase in the efficiency of the machine component, so that with a layer thickness of more than 20% of the maximum layer thickness of the insulation layer only the slot fill factor excessively re-

is induced.

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have height.

According to one embodiment variant of the invention, to reduce current heat losses, it can be provided that a ratio of width to height of the cross section of the electrical conductors is selected from a range of 1: 1 to 4: 1, and/or that the width of the cross section of the electrical conductor is an integer multiple of the subconductor width of the cross section of the subconductors and/or the height of the conductors is an integer multiple of the subconductor height of the cross section of the subconductors and/or that the width of the cross section of the electrical conductors is selected from a range of 100% to 450% of the sub-conductor height of the cross-section of the sub-conductors. A ratio of the sub-conductor height to the sub-conductor width can, for example, be selected from a range of

1/2 to 1/8 with two sub-conductors per conductor and from 1/4 to 1/16 with four sub-conductors.

In order to make it easier to produce the conductors from the subconductors, according to one embodiment variant of the invention it can be provided that the intermediate insulation

layer consists of the material of the insulation layer.

According to another embodiment variant of the invention, however, it can also be provided that the intermediate insulation layer consists of a material that is different from the material of the insulation layer. The layer thickness of the intermediate insulating layer can thus optionally be reduced in comparison to an intermediate insulating layer made of the material of the insulating layer, with which the

Slot fill factor can be improved.

According to another embodiment variant of the invention, it can be provided that the electrical conductors have a conductor longitudinal axis, and that the sub-conductors

ter subsequently to an axial end face of the laminated core a roof flap

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can be prevented.

For a better understanding of the invention, this is based on the following

Figures explained in more detail.

They each show in a simplified, schematic representation:

1 shows an electrical machine in a side view;

2 shows a machine component in the form of a stator in an oblique view;

3 shows a detail from a machine component;

Fig. 4 shows a section of an embodiment of the machine component in the

Area above an end face of the laminated core.

As an introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numbers or the same component designations, it being possible for the disclosures contained throughout the description to be applied to the same parts with the same reference numbers or the same component designations. The position information selected in the description, such as top, bottom, side, etc., is related to the figure directly described and shown and these position

information to be transferred to the new position in the event of a change in position.

1 shows an electrical machine 1 in simplified form in a side view. The electrical machine 1 includes a machine component 2 which is a stator in the embodiment variant of the electrical machine 1 . Another machine component 3 in the form of a rotor is arranged on a shaft 4 in a rotationally fixed manner in the stator.

Through the operation of the electric machine designed as an electric motor 1

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fields.

The rotor itself can be designed according to the state of the art. Conversely, it is also possible to design the rotor in accordance with the invention and the stator in accordance with the prior art. If, therefore, in the following explanations relating to the invention are made in relation to the machine component 2, 3, these are based either on the stator or on the rotor, where

the machine component 2 according to the invention is preferably a stator.

Although the electric machine 1 is preferably an electric motor, it can also be

be designed differently, for example as a generator.

As already mentioned at the outset, electrical machines 1 of this type are known per se from the prior art, so that the person skilled in the art can obtain further details on this

referred to the relevant literature.

In FIG. 2, an embodiment variant of the machine component 2 designed as a stator is shown schematically in an oblique view. The machine component 2 comprises a laminated core 5 which extends in an axial direction 6 , a radial direction 7 and a circumferential direction 8 . In the laminated core 5, a multiplicity of grooves 9 are distributed in the circumferential direction 8 and arranged at a distance from one another, and extend in the axial direction 6 and the radial direction 7 of the laminated core 5. The grooves 9 are continuous in the axial direction 6 in the longitudinal direction

educated.

In Fig. 2, several electrical conductors 10 are shown as an example before they are connected to form an electrical winding. Analogously, it can be seen from FIG. 2 by way of example that a plurality of electrical conductors 10 can be bent in the circumferential direction 8 to form a coil and electrical conductors 10 that correspond to one another can be connected to one another. The slots 9 of the laminated core 5 can be in the radial direction 7 and the axial direction 6 of the stator

1 be open. Such openings can be designed as an air gap 11 . the

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and 20 or between 2 and 12 electrical conductors 10 may be arranged.

In principle, the grooves 9 can have a wide variety of cross-sectional shapes, in particular rectangular ones for accommodating electrical conductors 10

Cross sections of the grooves 9 are preferred.

At least one insulating layer 14 is provided for electrical insulation of the individual electrical conductors 10 from one another and from the laminated core 5 , which can be seen better in FIG. The insulating layer 10 extends over one in each case

entire conductor circumference 15 and in the axial direction 6 of the laminated core 5 at least over an overall height 16 (see Fig. 2) of the laminated core 5. The insulation

layer 14 is continuously closed in the circumferential direction 8 as well as the radial direction 7 and the axial direction 6 in order to at least internally

to coat within the laminated core 5.

Provision is made for at least one of the electrical conductors 10 arranged per slot 9 to be formed by a number n of subconductors 17 . In the preferred embodiment variant of the machine component 2, all the electrical conductors 10 are formed by subconductors, so that the following applies: n=2*N. An example of this is shown in FIG. 3, in which all four electrical conductors 10 are formed by two subconductors 17 each.

However, the machine component 2 can also have a different number of in

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only have two or three or five or six, etc.

In general, according to a preferred embodiment variant of the machine component 2, it can be provided that the number n of subconductors 17 per slot 9 is selected from a range of 2*N to 5*N. In this case, only one or several or all of the electrical conductors 10 can be subdivided into subconductors 17 . For example, viewed in the radial direction 7 , every second electrical conductor 10 can be formed by subconductors 17 . An arrangement in packages is also possible, for example a number of two or more electrical conductors 10, which are arranged directly next to one another (and are only separated from one another by the insulating layer 14), are formed by subconductors 17, and the rest of the electrical conductors 10 are formed conventionally are formed without subconductor 17. For example, only the radially inner or the radially outer electrical conductors 10 can be formed by subconductors 17 . However, in the case of machine components with hairpin windings, the number of subconductors 17 is preferably the same

Number of conductors 10 per slot 9 times two.

According to a further preferred embodiment variant of the machine component 2, it can be provided that the number n of subconductors 17 per electrical conductor 10 is selected from a range of 2 to 5. 2 subconductors 17 are particularly preferred with so-called hairpin windings in order to achieve a symmetrical distribution to enable the sub-conductor 17 easier, in which each sub-conductor 17 "sees" each radial position in the slots 9, based on the entire machine component 2. With so-called I-pin windings, an implementation with more than

two subconductors 17, on the other hand, are easier to implement.

By dividing one or more electrical conductors 10 into subconductors 17, the efficiency of the machine component 2 can be increased for a given effective number of turns (compared to the same machine component 2

without dividing at least one of the electrical conductors 10 into subconductors 17).

The subconductors 17 are at least in the grooves 9 running parallel to each other

orderly. For the electrical insulation of the sub-conductors 17 of an electrical conductor 10

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at least one intermediate insulation layer 18 is provided from one another. A layer thickness 19 of the intermediate insulating layer 18 is smaller than a layer thickness 20 of the insulating layer 14 between the electrical conductors in order to avoid the reduction of the fill factor of the slot 9 with electrical conductors 10 (copper fill factor).

tern 10 in the radial direction 7 of the grooves 9.

The layer thickness 19 of the intermediate insulating layer 18 can be selected as a function of the maximum operating voltage of the machine component 2. The layer thickness 19 can be reduced to a minimum by the filling factor

to reduce the groove 9 with electrical conductors 10 as little as possible.

According to a further embodiment variant of the machine component 2, provision can preferably be made for the layer thickness 19 of the intermediate insulation layer 18 to be between 1% and 20% of the maximum layer thickness 20 of the insulation layer 14, it being possible in particular for the layer thickness 19 of the intermediate insulation layer to be at least 2 μm , in particular at least 5 µm, and at most 300 µm, in particular at most 170 µm. The maximum layer thickness 20 of the insulation layer 14 can be formed, for example, in the radial direction 7 between the electrical conductors 10, as shown in FIG. However, the maximum layer thickness 20 of the insulation layer 14 can also be formed in another area, for example laterally in the direction of the laminated core 5. The layer thickness 20 of the insulation layer 14 can therefore vary over the conductor circumference 15 of the electrical conductors 10 and/or in the axial direction 6 . Preferably, the stated embodiment variant of the layer thickness 19 of the intermediate insulating layer 18 of 1% and 20% of the maximum layer thickness 20 of the insulating layer 14 relates to the layer thickness variation in direction

of the conductor circumference 15.

It is also possible for only one intermediate insulation layer 18 to be formed between two subconductors 17 lying directly next to one another. On the other hand, several, for example two, intermediate insulation layers 18 can also be arranged. According to a further variant of the

Machine component 2 can be provided that the layer thickness 19 of the intermediate iso

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lation layer 18 between 1% and 20% of the maximum layer thickness 20 of the insulation layer 14 is based on the sum of the individual layer thicknesses of the intermediate

mechanical insulation layers 18.

A plurality of intermediate insulation layers 18 can be formed, for example, by providing the subconductors 17 with electrical insulation, for example in an extrusion process. Thus, each sub-conductor 17 can be provided with an interlayer insulating layer 18 . The sub-conductors 17 are then placed with the thin intermediate insulating layers 17 in abutting relationship. In order to produce the electrical conductors 10, all the subconductors 17 can therefore be provided with electrical insulation over the entire circumference beforehand.

initially considered a different layer thickness 19, 20 has.

Alternatively, it is also possible that only the intermediate insulation layer 18 is arranged on at least one of two subconductors 17 (or in the case of subconductors 17, for example on n-1) beforehand, and that the subconductors 17 are then arranged relative to one another in such a way that at least one intermediate insulation layer each 18 between two subconductors 17 is present. This packet of sub-conductors 17 can then be connected to the insulation over the entire conductor circumference 15

layer 14 can be provided.

In principle, other production methods are also suitable for producing the electrical conductors 10 from the subconductors 17 or for forming the insulating layer

14 and/or the intermediate insulating layer 18 is possible.

Depending on the production, the insulation layer 14 can also have a different layer thickness progression (viewed over the conductor circumference 15). For example, it can be provided that the insulation layer 14 tapers (additionally) at the transition to the intermediate insulation layer 18, as can be seen from FIG. If, on the other hand, the insulation layer 14 is subsequently applied to the package of subconductors 17, this area can also have a comparatively di-

thicker insulation layer 14 may be provided.

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According to further embodiment variants of the machine component 2, provision can be made for the intermediate insulation layer 18 to consist of the same material as the insulation layer 14 or a different material thereto. It is thus also possible to form purely duroplastic or purely thermoplastic or a mixture of duroplastic and thermoplastic electrical insulation of the electrical conductors 9 formed from the sub-conductors 17 within the grooves 9 . The intermediate insulation layer 18 can be made, for example, from extrudable, polymeric, thermoplastic material selected from the group of aromatic polysulfones (PAES) or mixtures of aromatic polysulfones (PAES), polysulfone (PSU), polyether sulfone (PES or PESU) or polyphenylene sulfone (PPSU), or from mixtures these aromatic polysulfones (PAES), or polyetheretherketones (PEEK), polyamideimides (PAI) and polyphenylene sulfide (PPS), etc., or at least comprise one of these plastics. However, other (synthetic) polymers can also be used for the intermediate insulating layer

18 are used.

In principle, the electrical conductors 10 can have any suitable cross-sectional shape. For example, they can have a round cross section. In the preferred embodiment variant of the machine component 2, the electrical conductors 10 and/or the subconductors 17 have a polygonal cross-sectional shape, in particular an at least approximately square or rectangular cross-sectional shape. The "at least approximately" refers to the possibility that the corners

not sharp-edged, but rounded or chamfered.

For example, the electrical conductors 10 can have a square cross section with a width 21 and a height 22 . According to one embodiment variant, it can be provided that a ratio of the width 21 to the height 22 of the cross section of the electrical conductors 10 is selected from a range of 1:1 to 4:1. For example, the electrical conductor 10 (or the sub-conductors 17) can have a width 21 between 1.5 mm and 8 mm, and a height 22 between 1 mm

have up to 3 mm.

According to another variant of the machine component, the sub-

conductor 17 has an at least approximately quadrangular cross section with a subconductor

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Having a width of 23 and a height of 24 subconductors. It can be provided that the width 21 of the cross section of the electrical conductors 10 is an integer multiple of the subconductor width 23 of the cross section of the subconductors 17 and/or the height 22 of the electrical conductors 10 is an integer multiple of the subconductor height 24 of the cross section of the subconductors 17 is. In the exemplary embodiment illustrated in FIG. 3, the subconductor width 23 is equal to the width 21 and the subconductor height 24 is half the height 22. In general, the width 21 of the electrical conductors 10 can be selected from a range from 2* to 4* of the subconductor Width 23 of the sub-conductors 17 and/or the height 22 of the electrical conductors 10 can be selected from a range of 2 * to 10 * of the sub-conductor height 24 of the sub-conductors 17.

All subconductors 17 of an electrical conductor 10 preferably have the same subconductor width 23 and the same subconductor height 24 . However, it is also possible for the or at least some of the subconductors 17 of an electrical conductor 10 to have a subconductor width 23 and/or a different subconductor height 24 to one another. For example, the subconductors 17 of an electrical conductor 10 can become thinner or thicker in the radial direction 7, based on the ra-

the innermost subconductor 17 of this electrical conductor 10.

According to a further embodiment variant of the machine component 2, it can be provided that the width 21 of the cross section of the electrical conductor 10 is selected from a range of 100% to 450% of the subconductor height 24 of the cross section of the subconductor 17. A ratio of the subconductor height 24 to the subconductor width 23 can, for example, be selected from a range of 1/2 to 1/8

with two sub-conductors 17 per conductor and from 1/4 to 1/16 with four sub-conductors 17.

According to another embodiment variant of the machine component 2 shown in Fig. 4, it can be provided that the electrical conductors 10 have a conductor longitudinal axis 25, and that the subconductors 17 adjoin an axial end face 26 (see Fig. 2) of the laminated core 5 in a so-called roof gap in which at least some of the subconductors 17 are rotated by an angle of rotation in a direction of rotation 27 of between 170° and 190°, preferably by 180°, about the longitudinal axis 25 of the conductor. This can be achieved, for example, by

that the subconductors 17 are held in its first and in its second section

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and supported, thereafter pivotally bending or folding movement is performed between the first and second portions of the sub-conductors 17 by the angle of rotation. A relative shortening of the height of the sub-conductors 17 in the direction of the conductor longitudinal axis 25 can thus be achieved, so that when the electrical conductors 10 re-enter the subsequent groove 9 (Fig. 4 shows the area in the circumferential direction 8 of the laminated core 5 between two grooves 9 ), the sub-conductors 17 swap the radial height in the slot 9 without the sub-conductors

17 ultimately become too long over the entire winding.

With the invention, a machine component 2 in the form of a stator or a machine component 3 in the form of a rotor for an electrical machine 1 can be produced, the method for producing at least the following steps

includes:

— Provision of a laminated core 5 which extends in an axial direction 6, a radial direction 7/ and a circumferential direction 8, and in which a plurality of grooves 9 are arranged, the grooves 9 extending in the axial direction 6 and the radial direction 7 of the laminated core 5 and in the Circumferential direction 8 of the sheet metal

kets 5 are arranged side by side and spaced apart,

— Provision of a number N = 2 of electrical conductors 10, which have an insulation layer 14 for electrically insulating the electrical conductors 10 from one another, the insulation layer 14 extending over the entire conductor circumference 15 and in the axial direction 6 of the laminated core 5 at least over one

Total height 16 of the laminated core 5 extends,

- Arrangement of the electrical conductors 10 in the grooves 9 of the laminated core 5, and

Contacting the electrical conductors 10,

- wherein at least one of the electrical conductors 10 arranged per slot 9 is formed from a number n of subconductors 17, wherein the subconductors 17 are arranged in the slots 9 running parallel to one another and are electrically insulated from one another by an intermediate insulating layer 18, with a layer thickness 19

the intermediate insulating layer 18 is chosen to be smaller than a layer thickness 20 of the

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Insulation layer 14 between the electrical conductors 10 in the radial direction 7 of the grooves 9.

If appropriate, the method also includes other customary steps, such as for example welding the electrical conductor 10 if these are in the form of I-pins or hairpins. Since these process steps are known,

further details are referred to the relevant prior art.

It is also possible that the electrical conductors 10 are not pin-shaped but consist of one-piece subconductors 17 and

also one-piece conductors 10 is formed.

The exemplary embodiments show possible design variants of the electrical machine 1 or of the machine component 2, 3, it being noted at this point that combinations of the individual design variants with one another are also possible

possible are.

Finally, for the sake of order, it should be pointed out that for a better understanding of the structure of the electrical machine 1 or the mechanical

Part 2, 3 these are not necessarily drawn to scale.

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16

Reference List

machine machine part machine part shaft

Laminated core Axial direction Radial direction Circumferential direction Groove

director

Air gap Tooth tip Slot base Insulation layer Conductor circumference Total height Subconductor Intermediate insulation layer Layer thickness Layer thickness Width

Height Sub-conductor width Sub-conductor height Longitudinal axis of conductor Face

direction of rotation

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Claims (15)

patent claims 1. Machine component (2, 3) in the form of a stator or rotor for an electrical machine (1), with a laminated core (5) which extends in an axial direction (6), a radial direction (7) and a circumferential direction (8). , and in which several grooves (9) are arranged, the grooves (9) extending in the axial direction (6) and the radial direction (7) of the laminated core (5) and in the circumferential direction (8) of the laminated core (5) next to one another are arranged and spaced apart from one another, with a number N = 2 of electrical conductors (10) also being arranged in the grooves (9), and the electrical conductors (10) electrically separated from one another and opposite the laminated core (5) by means of an insulating layer (14). are insulated, the insulation layer (14) extending over the entire conductor circumference (15) and in the axial direction (6) of the laminated core (5) at least over an overall height (16) of the laminated core (5), characterized in that at least one the per groove (9) arranged ele ktric conductor (10) is formed by a number n subconductors (17), the subconductors (17) being arranged running parallel to one another and being electrically insulated from one another by an intermediate insulating layer (18), a layer thickness (19) of the intermediate insulating layer (18 ) is smaller than a layer thickness (19) of the insulating layer (14) between the electrical conductors (10) in the radial direction (7) of the grooves (9). 2. Machine component (2, 3) according to claim 1, characterized in that the number n of sub-conductors (17) per electrical conductor (10) is selected from a range of 2 to 5. 3. Machine component (2, 3) according to claim 1 or 2, characterized in that the number n of sub-conductors (17) per slot (9) is selected from a range of 2*N to 5*N. N2021/07300-AT-00 4. Machine component (2, 3) according to one of claims 1 to 3, characterized in that a layer thickness (19) of the intermediate insulating layer (18) is between 1% and 20% of the maximum layer thickness (20) of the insulating layer (14) amounts to. 5. Machine component (2, 3) according to one of claims 1 to 4, characterized in that the electrical conductors (10) have an at least approximately four have angular cross-section with a width (21) and a height (22). 6. Machine component (2, 3) according to claim 5, characterized in that a ratio of width (21) to height (22) of the cross section of the electrical Conductor (10) is selected from a range of 1:10 to 6:1 7. Machine component (2, 3) according to claim 5 or 6, characterized in that the sub-conductors (17) have an at least approximately quadrangular cross-section having a sub-conductor width (23) and a sub-conductor height (24). 8. Machine component (2, 3) according to claim 7, characterized in that the width (21) of the cross section of the electrical conductors (10) is an integer multiple of the subconductor width (23) of the cross section of the subconductors (17) and/or the height (22) of the conductors (10) is an integer multiple of the subconductor height (24) of the cross section of the subconductors (17). 9. Machine component (2, 3) according to Claim 7 or 8, characterized in that the width (21) of the cross section of the electrical conductor (10) is selected from a range of 100% to 450% of the subconductor height (24) of the Cross-section of the sub-conductor (17). 10. Machine component (2, 3) according to any one of claims 1 to 9, characterized in that the intermediate insulating layer (18) made of the material of Insulation layer (14) consists. N2021/07300-AT-00 11. Machine component (2, 3) according to any one of claims 1 to 9, characterized in that the intermediate insulating layer (18) from the material of Insulation layer (14) consists of different materials. 12. Machine component (2, 3) according to one of Claims 1 to 11, characterized in that the electrical conductors (10) have a conductor longitudinal axis (25) and that the subconductors (17) adjoin an axial end face (26) of the laminated core (5) have a roof flap in which they rotate through an angle are rotated between 170° and 190° about the longitudinal axis (25) of the conductor. 13. Electrical machine (1) comprising a stator and a rotor, characterized in that the stator or the rotor as a machine component (2, 3) is formed according to any one of claims 1 to 12. 14. A method for producing a machine component (2, 3) in the form of a stator or a rotor for an electrical machine (1), comprising the steps: - Providing a laminated core (5) which extends in an axial direction (6), a radial direction (7) and a circumferential direction (8) and in which a plurality of grooves (9) are arranged, the grooves (9) extending in the axial direction (6) and the radial direction (7) of the laminated core (5) and are arranged next to one another and spaced apart from one another in the circumferential direction (8) of the laminated core (5), - Provision of a number of N = 2 electrical conductors (10), which have an insulation layer (14) for electrically insulating the electrical conductors (10) from one another, the insulation layer (14) extending over an entire conductor circumference (15) and in in the axial direction (6) of the laminated core (5) at least over an overall height (16) of the laminated core (5), - Arrangement of the electrical conductors (10) in the grooves (9) of the laminated core (5), and contacting the electrical conductors (10), characterized in that at least one of the groove (9) arranged electrical conductors (10) from a number n subconductor (17) is formed, wherein the N2021/07300-AT-00 Subconductors (17) are arranged to run parallel to one another, at least in the grooves (9), and are electrically insulated from one another by an intermediate insulating layer (18), with a layer thickness (19) of the intermediate insulating layer (18) is chosen smaller than a layer thickness (19) of the insulating layer (14) between the electrical conductors (10) in the radial direction (7) of the grooves (9). 15. The method according to claim 14, characterized in that the machine component (2, 3) is designed according to one of claims 2 to 12 becomes. N2021/07300-AT-00