WO2009083143A1

WO2009083143A1 - Winding carrier for an electrical machine

Info

Publication number: WO2009083143A1
Application number: PCT/EP2008/010729
Authority: WO
Inventors: Helmut Kunkel; Arno Hack; Detlef Witt; Rudolf Bodner
Original assignee: Robert Bosch Gmbh
Priority date: 2007-12-21
Filing date: 2008-12-17
Publication date: 2009-07-09
Also published as: DE102007062059A1

Abstract

The invention is based on the object of creating a winding carrier, which ensures optimum and secure insulation for rotor windings amongst each other. The invention achieves said object by a winding carrier for attachment to the primary part segments of a primary part of a linear motor or a rotation symmetrical motor, said primary part having a modular design by means of the primary part segments, wherein a primary part segment comprises at least one yoke section (1) and one tooth section (2) for attaching a winding. The winding carrier comprises an insulating agent (4) in order to at least partially surround the tooth section (2) of the primary part segment. The insulating agent (4) is provided with at least one first insulating agent expansion section (3) in order to at least partially surround the yoke section (1) of the primary part segment, wherein additionally an insulation extension (5) is comprised in order to electrically insulate a winding that can be arranged on the insulation agent (4) against the windings of neighboring primary part segments. The insulation extension (5) is arranged or can be arranged on the insulating agent extension section (3). The advantage of the solution according to the invention is that the production process of the primary part of an electrical machine is simplified.

Description

Winding support for an electrical machine

description

The present invention relates to a winding support for attachment to the primary part segments of an electrical machine according to independent claim 1 and to a method for producing a winding support according to the invention according to claim 17.

A primary part of an electrical machine can be realized by means of a plurality of individual primary part segments. These primary part segments generally comprise a yoke section, which is intended to guide the magnetic field generated during operation of the machine, and a so-called tooth section, on which windings can be arranged. The aforementioned primary subsegments are generally used in conjunction with so-called concentrated windings. In this method, a winding is not distributed over several teeth, but it is limited to a single tooth. Accordingly, primary sub-segments can be manufactured together with the concentrated winding as a separate module.

The published patent application DE 10 2004 025 105 A1 shows the stator of an electric machine produced by means of stator segments together with an insulating one

Bobbins. There is shown an insulating bobbin mounted on a tooth extending from a ring segment yoke of a stator with a wire wrapped around the insulating bobbin.

In Japanese Abstract Publication No. 2006 141 173 A, a single stator segment is shown in detail. This segment also consists of a yoke and a tooth and a tooth extension section opposite the yoke. The yoke, the tooth extension portion and the tooth portion itself form an H-shaped cross section, wherein a space for accommodating a winding by means of the cross section is realized longitudinally in the axial direction of the stator. The winding is isolated by means of an insulating body of the material of the stator segment. Attachment sections are shown on the end faces of the yoke, by means of which a form-fitting joining together of a plurality of adjacent stator segments is possible, so that the arrangement is fixed in the radial direction.

Looking again at DE 10 2004 025 105 A1, it is noticeable that the yoke sections directly adjoin one another in order to keep the magnetic resistance as low as possible. The present at the aligned in the radial direction tooth sections

On the other hand, tooth extension sections do not abut each other directly in order to avoid a magnetic short circuit in the immediate vicinity of the rotor.

Such known from the prior art arrangements have the disadvantage that to achieve the highest possible insulation class in the construction no adequate provision has been made.

It is therefore the object of the invention to design winding carriers for primary subsegments of electrical machines, as well as to specify a production method for such winding carriers, wherein the most effective possible insulating effect between the winding and the primary part is to be achieved.

The invention achieves this object by means of a winding carrier for mounting on the primary part segments of a primary part of an electric machine with additional modular secondary part, in particular a linear motor or a rotationally symmetrical motor, wherein a primary part segment comprises at least one yoke portion and a tooth portion for attaching a winding, wherein the winding support comprises a preferably injection-molded realized insulating means to at least partially enclose the tooth portion of the primary part segment, wherein at least a first Isolationsmittelerweiterungsabschnitt is provided on the insulating means to at least partially enclose the yoke portion of the primary part segment. Under primary part is understood in this context, the stationary component of the electric machine. It may be, for example, the stator of a rotationally symmetrical machine. By secondary part is understood in this context, the movable component of the electric machine. It may be, for example, the rotor of a rotationally symmetrical machine. In addition, it should be noted that in a linear motor, both the primary part, and the

Abutment can be arranged to be movable. In connection with linear motors, therefore, the term primary part does not necessarily also assume the stationary component of an electrical machine, even if the primary part is frequently realized as a stationary component due to the required cable and control supply lines. It also applies that in connection with linear motors in the term secondary part is not necessarily assumed to be a movable component of an electric machine, even if the secondary part is often arranged to be movable. In the case of linear motors, the machine component comprising the winding body according to the invention can therefore represent both a stationary and a non-stationary machine component.

An advantage of the invention is the improved reliability of the insulation between the winding and the primary part segment due to a stable and more compact winding carrier, which requires no complex assembly work and accordingly has a low probability of failure in the subsequent operation of the machine.

Advantageously, an insulation extension from the winding support is additionally included in order to electrically isolate a winding which can be arranged on the insulation means with respect to the windings of adjacent primary part segments, wherein the insulation extension is arranged or can be arranged on the insulation material extension section. The advantage of this solution lies in the fact that instead of the elaborate manual introduction of additional insulation materials between adjacent windings in the production of the primary part, for example in the form of insulation paper, now an insulator is already provided in the production of the winding support by the insulation extension as an integral part of Winding support is provided to reliably isolate adjacent windings against each other. It is therefore also very unlikely that the attachment of the interphase insulation (interphase insulation) will be overlooked, for example, during manual assembly. Insofar as the insulation extension is "arranged" in the sense of the above wording, this refers to an integral realization form of the winding carrier and the insulation extension and if the insulation extension is "arrangeable" within the meaning of the above wording, this refers to an example multi-part realization form of the winding carrier and of the isolation process. Conventionally, the procedure has hitherto been such that an insulation means has been applied to the winding support which extends beyond the yoke section and, if appropriate, beyond existing tooth extension sections. Subsequently, the winding was attached to the tooth and the over the yoke section or the optionally existing Zahneweiterungsabschnitt projecting insulation was then used to the outer cover of the winding. To the opposite to the cover

To fix windings existing protruding insulation, for example, plastic caps were mounted on the front side of the primary part module, in which the protruding insulation had to be threaded. An extremely difficult to handle process, which can lead to damage of the windings if incorrectly executed and additional effort during assembly meant.

1

This aspect of the invention avoids this disadvantage, since the insulating means in the form of the insulation extension is already provided on the winding support in order to realize the protection of the mutually adjacent windings. Thus, the assembly process and the reliability of the assembly during operation are simplified and the life of the assembly increases.

Particularly preferably, the insulation extension is arranged so hingedly on the insulating means that the insulating means and the insulation extension form a one-piece body. This prevents the introduction of the insulation during the assembly of a primary part could be overlooked by the fitter because it is already fixedly disposed on the winding support and pre-fixed. After the wrapping of the support, the insulation extension must be folded over only by means of the joint, so that it covers the winding in the peripheral side or in the direction of movement of the secondary part. In addition to the hinge snap closures or positive connections could be provided to lock the insulation extension on the side opposite the hinge side of the winding support. As an alternative to the solution mentioned above, it would also be possible to use form-liquid connections or snap connections or tongue and groove connections in order to arrange the insulation extension on the insulation means. On a joint could be completely dispensed with in this case and it would be possible the windings even after the actual assembly of the arrangement subsequently even by introducing the insulation extension against each other to electrically isolate. Here one would then the

Insert insulation extension perpendicular to the direction of movement of the secondary part between the coils.

Preferably, a second insulation means extension section is provided on the winding support, which can extend at least partially over the end faces of a tooth section with secondary part side tooth extension section. This extension section can serve to isolate the end faces of the tooth extension section with respect to adjacent tooth extension sections. On the other hand, it can serve to receive a guide or a joint for fastening the insulation extension. When using two extension sections, both the articulated attachment of the insulation extension, as well as the attachment of the insulation extension offers by means of positive connections on the extension section.

The rotor-side ends of the extended tooth sections, viewed in the direction of rotation in a rotationally symmetrical motor and viewed in the direction of movement in a linear motor, as is apparent, for example, from the prior art cited above, are not directly connected to one another and thus mechanically hardly stabilized or fixed against one another. This is due to the principle due to the desired rotor-side or secondary part-side distance of the Zahnerweiterungsabschnitte each other the case.

During operation of a motor, very high magnetic forces act on the primary part. Especially in engine components realized by means of individual segments, these forces lead to mechanical vibrations of the segments, which are due to the lack of rigidity or the lack of stabilization of the tooth sections in the immediate vicinity of the secondary part. These mechanical vibrations stimulate the joined segments in their natural frequency and lead to acoustically audible vibrations. This leads to excessive noise pollution, for example in production halls. In addition, these vibrations have a direct negative effect on the torque generated by the engine, since the mechanical events can constantly change depending on the rotational speed of the engine.

This problem is solved preferably by means of a winding carrier according to the invention, wherein connecting sections are included and wherein opposite connecting sections are formed corresponding to each other, so that directly adjacent to each other winding carriers are positively connected to each other. By means of the connecting portions, the primary part segments can be fixed against each other both on the yoke side and on the secondary part side. Secondary part side, a magnetic short circuit due to this fixation is bypassed by the fact that the magnetically conductive material is not directly connected. The connection is made indirectly using the winding carrier material, which isolates the magnetically conductive material of the juxtaposed primary sub-segments against each other both electrically and magnetically. This compound also contributes to the locking of the overall arrangement in the radial direction or in a linear motor perpendicular to the direction of motion.

The connection sections are preferably arranged on the end side of the first insulation extension section facing an adjacent primary section segment such that, in the case of adjoining insulation extension sections of immediately adjacent primary section segments, an air gap extended along the end faces in comparison to planar end surfaces. This causes, in the case of adjoining expansion sections of adjacent stator segments, the extension section end faces no longer abutting one another, resulting in an undesired, relatively short air gap between yoke underside and winding. Instead, the invention causes due to the mutually corresponding connection means, such as tongue and groove joints or sliding and plug connections or snap connections that an extended air gap is formed, which increases the dielectric strength of the arrangement along the air gap. At the same time this interlocking causes a higher stability of the arrangement. This aspect of the invention also applies to winding carriers with and without insulation extension according to the invention. Particularly preferably, the isolation means forms together with the first

Isolationsmittelerweiterungsabschnitt a T-shaped cross-sectional profile and together with the first and the second insulation means extension portion of an H-shaped cross-sectional profile, wherein the winding support comprises support extensions for supporting the head of an insulating means can be arranged with at least a first first opening for wire feedthrough. The profile stabilizes the winding carrier and the wire feedthrough facilitates wrapping.

A boundary of the recess is preferably aligned with a surface of the insulating means arranged on the tooth portion and the recess has in particular a cross section which allows insertion of a wire from a direction deviating from the vertical direction relative to the support surface.

The leads are thus not excessively strained by bending or stretching and can be easily interconnected together with the leads of other windings. The advantage of this solution also lies in the fact that the first wire layers on the insulating means are executable such that wire by wire comes to lie evenly next to one another, so that in combination with further winding layers a maximum possible filling factor can be achieved.

Namely, if the first wire layer is not designed as described above, for example if individual wires overlap, this has negative effects on all following winding layers and air pockets and voids are formed, which can lead to a reduced copper lead factor and thus to a reduced force density. The recess designed according to the invention avoids this by virtue of the fact that, when the first winding layer is realized, the wire is guided in a straight line between a boundary of the first winding layer

Recess and the surface of the insulation comes to rest without it being necessary to bend the wire or make any other direction changes.

Due to an example V-shaped cross-section of the recess, it is possible depending on the type of wiring outside of the primary segment from different directions from the vertical deviating introduce into the winding support, resulting in that here also no massive mechanical effects the wire will be required. Preferably, a second recess of

Includes support extension for wire feedthrough. Thus, the coil can be easily wired with its two terminals.

Preferably, at least one recess is provided on the winding support for arranging a fastening means for a winding which can be arranged on the winding body. The

Recess is realized in such a way that it has no influence on the copper sensing factor. This is effected by the fact that the recess ultimately represents a depression on the surface of the insulating means over which the wire can be passed. The winding can thus be knotted, for example by means of a cord, to lock the winding heads.

Preferably, a primary part segment for electrical machines, in particular linear motors or rotationally symmetrical motors, equipped with yoke portion and tooth portion with a winding body according to one of the preceding claims, so that the winding body encloses both the tooth portion and the yoke portion at least partially positively. Primary segment and winding support thus form a compact unit that can be installed or sold as such. On the mounting side, the effort for mounting the winding carrier on the primary section segment and for the insulation of the winding is reduced. This leads to a reduction of the manufacturing costs in the manufacture of the machine. The winding body of the adjacent primary part segments engage each other due to the connecting portions according to the invention and thus increase the stability of the arrangement. In particular, the connection sections provided on the extension sections increase the stability of the arrangement during operation and avoid the vibrations already described or the noise resulting from the vibrations.

For the preparation of the winding carrier of the invention the isolation means and the isolation means extension ^'sabschnitt the injection molding is produced in such a way. The most varied forms are thus easily realizable. The desired stability of the winding body can also be influenced by suitable configuration of the injection molding process.

Preferably, the method is carried out in such a way that an insulation extension can be arranged, which is suitable for electrically isolating a toothed winding arranged on the insulating means or on the insulation-medium extension section with respect to the tooth windings of adjacent stator segments. Such an insulation extension increases the reliability of the machine and avoids short circuits within the concentric windings.

Preferably, the insulation extension is injection-molded in such a way within the previously mentioned injection molding directly on the insulating means or on the insulating agent extension section that insulation means or insulating agent extension section and insulation extension form a one-piece and hingedly interconnected unit. The insulation extension thus forms together with the insulation means a non-separable unit and must be taken into account during installation inevitably. By means of a material taper between insulation extension and insulation means or isolation means extension section, a smooth film hinge can be realized.

In addition, it is always ensured that the insulation extension is reliably and securely connected to the insulating means at least on one of its sides and thus only has to be locked on the side opposite the joint, for example by means of a snap connection or the like.

Particularly preferably, the insulating means directly on a primary sub-module, usually consisting of stamped or welded sheets or solid material, sprayed in the context of an injection molding, so that a non-releasable positive connection between the winding support and PrimärteilmoduLentent. This further reduces the assembly costs, since now the winding support no longer has to be manually applied to the primary part module.

Alternatively, it would also be possible to postpone the winding support after the actual injection process for producing the winding support on the tooth portion of a primary part module. This solution in turn has the advantage that the winding could already be mounted on the winding support, so that winding support and winding form a unit, which would then be considered as a whole to be mounted on the primary sub-module. In the following, further aspects of the invention will now be explained with reference to the description of the figures. The figures are schematic drawings, which do not exclusively illustrate the essential aspects of the invention graphically.

FIG. 1 shows the view of the uncut cross section of a primary submodule provided with a winding carrier according to the invention.

FIG. 2 shows the longitudinal section through the primary submodule shown in FIG. 1 from the perspective of the secondary part.

FIG. 3 shows an alternative solution to the solution shown in FIG.

It is clear in Figure 1, the H-shaped structure of here exemplified primary submodule recognizable. This H-shaped structure results from a yoke portion 1, a tooth portion 2 (hidden by the insulating means 4) and an extension portion 2a. Since the primary submodule view illustrated in FIG. 1 is not an actual section through this module, but rather the view of the end face of such a module, the material of the winding carrier is predominantly visible, but not the material of the primary submodule itself. An exception hereof forms the Zahnerweiterungsabschnitt 2 a, which is only partially covered by the insulating agent extension section 3.

Such a primary sub-module is usually realized from each other punched or welded sheets. It is also possible to make such a primary sub-module from sintered material so that it consists of a solid block. All Primärteilmodulabschnitte are usually made of the same material and can form a one-piece or multi-part module. The modules are multi-part when, for example, yoke section 1 and tooth section 2 are made by means of separate parts and are interconnected by means of positive connections.

Both the end-side yoke surface, as well as the frontal Zahnabschnittsfläche, as well as the frontal Zahnabschnittserweiterungsfläche is completely or partially covered by the winding body. This cover also extends along the longitudinal side An essential prerequisite for the correct functioning of an electric machine realized by means of the primary submodule is that the part of the primary submodule to which the winding is arranged, is completely covered by the insulating means 4. This is to ensure that a winding applied later can not come into direct contact with the material of the primary module. The frontal isolation of the tooth portion is indicated in Figure 1 by the reference numeral 4. The reference numeral 3 designates the insulating agent extension section for covering the yoke bottom side and the winding-facing upper side of the secondary-part-side tooth extension section 2a. The secondary part of the underside facing the tooth extension portion 2a is not covered by the insulating means of the winding support. However, this surface may be coated by means of an insulating layer, for example by means of a resin. In order to keep the air gap between the secondary part side tooth surface and the secondary part as low as possible, it is essential that a. possibly existing insulation does not adversely affect the dimensioning of the air gap.

FIG. 1 likewise shows the insulation extension 5, which in this example is attached to the longitudinal end face of the insulation means extension section 3 in an articulated manner, for example by means of a film hinge. By means of this film hinge of the insulation extension 5 is movably mounted and can be changed by bending or fold over in its position that it is aligned substantially parallel to the surface of the insulating means 4, and thus at least partially cover a winding applied to Isolatiβnsmittel. Preferably, this insulation extension is locked on the yoke-side insulation means extension section 3 by means of snap connections or other releasable connections (not shown here).

Since FIG. 1 shows the view side of the primary submodule with the winding carrier according to the invention, it can also be clearly seen here that at the longitudinal sides of the insulating means extension sections 3 facing the adjacent primary submodules

Connecting means 4A, 4B are present. These opposing connection means 4A, 4B are different, but corresponding to each other. For example For example, the connecting means 4A has a longitudinal projection, such as the spring of a tongue and groove joint, and the opposing connecting means 4B, the associated longitudinal groove. This becomes clear from the detail drawings belonging to FIG. In this example triangular NuW spring connections were chosen. If you now two known from Figure 1 primary sub-modules side by side, so engages the spring 4A of the first primary submodule in the groove 4B of the second primary sub-module and causes an air gap forms within the compound whose length considered in cross-section with respect to the length of plan adjacent end faces without tongue and groove connection, is increased. The air gap extends in this example in cross section along the triangular tongue and groove connection. This extended air gap can increase the dielectric strength of the insulation between the winding and the yoke material by 10 to 50% compared to flush-fitting end faces. Depending on the design of the positive connection and requirements in operation in detail, the air gap can thus be selectively extended or shortened.

In addition, the cross sections of recesses 8 A, 8 B are shown in Figure 1, which will be discussed in more detail later in the explanation of Figure 2.

On a winding support according to the invention a recess 9 is provided along the cross-sectional side height of the winding support, which represents a recess in the material thickness of the winding support. This recess 9 serves to receive a

Fastener, such as a simple cord for fixing the winding head of a later applied winding. The winding head rests on the extension 7 and is thus effectively protected against external effects.

In Figure 1 it can also be seen that the longitudinal and non-electrically conductive

End faces of the yoke are also provided with connecting means IA, IB, which similar to the aforementioned connecting means 4A, 4B cooperate with corresponding connecting means of adjacent primary sub-modules and ensure mechanical strength of the arrangement. These end faces are not encompassed by an insulating means in order not to influence the magnetic conductivity of a primary part yoke 1 realized by means of the primary submodules. Also, the secondary-part-side insulating agent extension portion 3 is provided with connection means 4A, 4B. These Connection means may be identical or similar to the connection means 4A, 4B of the

Jochabschnittes or the yoke-side insulating means extension section 3 be realized.

The advantage of these secondary part-side connecting means 4A, 4B lies in the fact that, when the primary part modules are joined together, the tooth sections on the secondary part side, in contrast to the solutions known from the previously described prior art, are positively connected and pressed against each other, whereby the mechanical strength of the overall arrangement increases, without one secondary side magnetic short circuit effect. As a result, occurring during operation mechanical forces are no longer able to put the primary part modules in self-oscillation and cause the previously explained noise emissions. However, it is important and essential here that, in contrast to the end yoke connection means IA, IB, the end connection means of the extension sections 3 are not realized from the electrically and / or magnetically conductive yoke material 1, but by means of the insulation material of the winding support. A secondary part-side connection between the conductive materials of adjacent primary sub-modules would lead to a magnetic short circuit in the device.

FIG. 2 shows the longitudinal section through the primary part module already known from FIG. 1 from the perspective of the secondary part (see arrows in FIG. 1). In Figure 2, the actual core of the primary part module is clearly seen in section (secondary part side longitudinal section through the tooth portion 2 and insulation means 4). The tooth portion 2 is surrounded on all sides by the insulating means 4, wherein in this example the material thickness of the insulating means is implemented on at least one side of the tooth portion .derart that the recess 9 for receiving a fastening for a winding to be introduced is feasible.

Further recesses 8A, 8B are shown, which ultimately serve for wiring a winding introduced into the winding carrier. The cross-section of this recess is, as shown in Figure 1, V-shaped in this example, so that a wire yoke side can be inserted from different directions in the winding carrier, without exposing this wire massive mechanical stresses, such as a bending stress. It would also be sufficient to bevel only one edge, so that the wire is insertable from one direction. In the V-shaped recess of the wire is off two directions insertable.

At least one edge of the V-shaped wire entry 8A is aligned with the edge of the insulating means 4 to which the wire is later applied. A wire can thus be applied to the insulating means 4 in such a way that the largest possible possible contact between insulating means 4 and wire surface is formed. The precision with which this first layer of the winding is carried out essentially determines the quality of the entire winding and is therefore significantly responsible for achieving an optimum copper fill factor.

The attachment according to the invention of this recess 8A according to the schematically illustrated FIG. 2 enables this advantage in that, as already described above, at least one edge of the recess is aligned with a surface of the isolating means 4.

The second recess 8B serves to guide the wire out of the winding carrier after application of the winding, so that the winding on the primary module with the windings of other primary module on the yoke side are easily interconnected by easy accessibility of the winding connection wires. The yoke-side extension section 3 visible in FIG. 2, on which the winding later rests, covers the yoke at least in such a way that the later-applied winding has no direct contact with the conductive yoke material. At yoke-side extension section 3 support extensions 7 are additionally arranged to protect the winding head. Secondary part side, the winding can at least partially rest on the secondary side insulation means extension section 3. ,

FIG. 3 is essentially identical to FIG. 1. Therefore, the same statements as in FIG. 1 apply. Only the intermediate insulation extension 5 has been arranged on the yoke side.

The primary sub-module shown in Figs. 1, 2 and 3 can be realized only by directly injecting the insulating means 4 and the insulating agent extension portions 3 onto the primary part-modulus raw material (stamped or (laser) welded laminated sheet or solid type). The winding support is thus non-destructively non-detachably connected to the Primärteilmodulrohmaterial. The same applies to the isolation process 5, which is also sprayed directly onto the insulating agent expansion section 3 as part of an injection molding process in the manufacture of this device. The injection process is carried out in such a way that either a film hinge is realized or that at least one articulated bearing 6 is realized between the insulation extension 5 and the insulation means extension section 3. To cover a winding to be introduced later, the insulation extension 5 can easily be folded over after application of the winding in the direction of the yoke-side insulation means extension section 3 by means of the joint 6 and optionally on the yoke side

Isolation medium extension section 3 by means of a corresponding form-fitting connection engage.

Claims

claims

1. winding support for attachment to the primary part segments of a primary sub-segments modularly constructed primary part of an electric machine with additional secondary part, in particular a linear motor or a rotationally symmetrical motor, wherein a primary part segment at least one yoke portion (1) and a tooth portion (2) for attaching a winding j characterized in that the winding support comprises an insulating means (4) realized in particular by injection molding, in order at least partially to enclose the toothed portion (2) of the primary part segment, at least one first insulation means extension portion (3) being provided on the insulation means (4) to form the yoke portion (3). 1) of the

Primary segment at least partially enclose.

Second winding support according to claim 1, wherein in addition an insulation extension (5) is included to electrically isolate a on the insulating means (4) winding relative to the windings of adjacent primary segments, wherein the insulation extension (5) is arranged on the insulation means extension section (3) or can be arranged is.

3. winding support according to claim 2, wherein the insulation extension (5) such articulated (6) on the insulating means (4) is fixed, that the insulating means (4) and the insulation extension (5) form an integral body.

4. winding support according to claim 2, wherein the insulation extension (5) by means of a positive connection, in particular a snap connection or a tongue and groove connection, with the insulating means (4) is connectable.

5. winding carrier according to one of the preceding claims, wherein a second insulating means extension section (3) is provided, which at least partially extends over the end faces of a toothed portion (2) with Sekundärteilseitigem tooth extension portion (2a).

6. winding support according to one of the preceding claims, wherein the connecting portions (4a, 4b) are included and wherein opposite connecting portions (4a, 4b) are formed corresponding to each other, so that directly adjacent to each other winding carriers are positively connected to each other.

7. winding support according to claim 6, wherein the connecting portions (4a, 4b) on the adjacent primary part of a segment facing end side of the first insulating means extension portion (3) are arranged such that in the case of

Joining of insulating means extension sections (3) immediately adjacent

Primary segments a contiguous compared to plan

Isolationsmittelerweiterungsabschnitt end faces (3, 4a, 4b) elongated air gap along the end faces arises.

8. winding support according to one of the preceding claims, wherein the insulating means (4) together with a first insulation means extension portion (3) forms a T-shaped cross-sectional profile and forms together with a first and a second insulation means extension portion (3) an H-shaped cross-sectional profile, wherein the Winding support support extensions (7) for supporting the head of a on the insulating means (4) can be arranged winding with at least one first recess (8a) for wire feedthrough.

9. winding support according to claim 8, wherein at least one boundary of the recess (8 a) with a surface of the insulating means (4) is aligned and the recess (8 a) in particular has a cross-section, the insertion of a wire from one of the vertical direction, relative to Considered support surface, allows different direction.

10. winding carrier according to one of the preceding claims 8 or 9, wherein a second recess (8b) on the support extension (7) for wire feedthrough is included.

1 1. Winding support according to one of the preceding claims, wherein a recess (9) is arranged zuf arrangement of a fastening means for an arrangeable on the angle beam winding.

12. primary segment for electrical machines, in particular linear motors or rotationally symmetrical motors, with yoke section (1) and with tooth section (2), wherein a winding body is included according to one of the preceding claims.

13. Primary segment according to claim 12, wherein the bobbin additionally at least partially surrounds a Zahnerweiterungsabschnitt (2a) of the tooth portion (2).

14. Primary segment according to claim 12 or 13, wherein each of the adjacent primary part segments facing end faces of the yoke sections (1) connecting portions (Ia, Ib) include, so that adjacent primary part segments can interlock positively in such a way that the lowest possible magnetic resistance along adjacent yoke sections ( 1) results.

15. primary part of an electrical machine comprising primary part segments according to one of the preceding claims 12, 13 or 14th

16 linear motor or rotationally symmetrical motor with primary part according to claim 15.

17. A method for producing a coil carrier according to any one of claims 1 to 11, wherein the insulating means (4) and the insulating agent extension section (3) are produced by injection molding.

18. The method according to claim 17, wherein the injection molding process takes place in such a way that an insulation extension (5) can be arranged directly on the insulation means (4) or on the insulation means extension section (3), which is suitable for winding on the insulation means (4) opposite the windings adjacent Isolate primary sub-segments electrically.

19. The method according to claim 17, wherein the injection molding is carried out such that an insulation extension (5) on the insulating means (4) is arranged such that the insulating means (4) and the insulation extension (5) form an integral and articulated unit.

20. The method according to claim 19, wherein the insulation extension (5) is articulated by means of a at least partially along the insulation extension (5) extending material taper on the insulating means (4).

21. The method according to any one of claims 17 to 20, wherein the insulating means (4) together with the insulation extension (5) in one operation together with the insulating means (4) is produced by injection molding.

22. The method according to any one of claims 17 to 20, wherein the insulation extension (5) is arranged after the injection process on at least one insulation means extension section (3) of a primary part module.