Primary unit, use of a winding, drive apparatus and magnetic levitation railway

Abstract

The invention relates to a primary unit (1) of a drive apparatus (2) of a magnetic levitation railway (3), having a first part (4) of a carrying device and having a primary part (6) of a linear motor, in particular of a short-stator linear motor, wherein the primary part (6) of the linear motor comprises at least one metal core (8) and at least one winding (9), and wherein the at least one winding (9) comprises at least one conductor portion (10, 11) arranged within the metal core (8) and at least one winding head (12) arranged outside the metal core (8). According to the invention, the at least one winding head (12) comprises at least one limb (13, 14), wherein the at least one limb (13, 14) is angled with respect to the at least one conductor portion (10, 11).

Description

[0001] Primary unit, use of a winding, drive device and magnetic levitation

[0002] The present invention relates to a primary unit of a drive device of a magnetic levitation train, comprising a first part of a support device and a primary part of a linear motor, in particular a short-stator linear motor. The primary part of the linear motor comprises at least one metal core and at least one winding, and the at least one winding comprises at least one conductor section arranged within the metal core and at least one winding head arranged outside the metal core. Furthermore, the invention relates to the use of a winding, a drive device, and a magnetic levitation train.

[0003] WO 2013 / 083757 A2 discloses a drive device for a magnetic levitation train with a short-stator linear motor. A primary part of the linear motor is provided with a winding and is intended for installation on a vehicle of the magnetic levitation train. Part of the winding is arranged in an iron core. The other part of the windings, the so-called winding head, protrudes beyond the iron core in a transverse direction. The winding heads of windings represent the inactive part of the windings and thus contribute little or nothing to the drive of the magnetic levitation train. A disadvantage of the windings shown here is that the winding heads require a large proportion of the installation space in the transverse direction, and the iron core must therefore be dimensioned accordingly narrow.

[0004] The object of the present invention is to eliminate the disadvantages known from the prior art. In particular, the object is to create a primary unit in which the efficiency of the drive unit is improved. Additionally or alternatively, the object of the invention is to drive the magnetic levitation train more efficiently and / or more consistently using the drive device.

[0005] The problem is solved by a primary unit, a use of a winding, a drive device, and a magnetic levitation train with the features of the independent patent claims. A primary unit of a drive device for a magnetic levitation train is proposed, comprising a first part of a support device and a primary part of a linear motor, in particular a short-stator linear motor. In the advantageous embodiment of the short-stator linear motor, the power-supplied primary part of the linear motor is located on a vehicle of the magnetic levitation train. The technically less complex secondary part of the linear motor is arranged on a track of the magnetic levitation train. The track is therefore significantly more cost-effective to manufacture than with a long-stator linear motor, in which the primary part is arranged on the track. The primary part of the linear motor serves to drive the vehicle of the magnetic levitation train along the track.

[0006] The first part of the support device serves to levitate the magnetic levitation vehicle on the track and / or to provide electromagnetic lateral guidance. Preferably, the first part of the support device is designed as the active part of the support device. Both the primary part of the linear motor and the first part of the support device, designed as the active part, are supplied with power via the vehicle during intended use.

[0007] The primary part of the linear motor comprises at least one metal core and at least one winding. The metal core is preferably designed as a ferromagnetic metal core and / or iron core. The metal core comprises, for example, a plurality of adjacent and / or toothed laminations. The laminations can have the grooves in which the at least one winding for the linear motor is arranged.

[0008] The at least one winding comprises at least one conductor section arranged within the metal core and at least one winding head arranged outside the metal core. The conductor section is thus designed as an active conductor section. The winding head is designed as an inactive winding head. The at least one conductor section is the active section of the at least one winding. The at least one winding head is the inactive section of the at least one winding. The winding head thus contributes little or nothing to the drive of the magnetic levitation train.

[0009] According to the invention, the at least one winding overhang comprises at least one leg, wherein the at least one leg is angled to the at least one conductor section. Because the at least one leg is angled to the at least one conductor section, the winding overhang can run closer to the iron core along a transverse direction. The primary part of the linear motor is limited in its width along the transverse direction. For example, it is arranged inside or in an interior space of the first part of the support device. By reducing the at least one winding overhang of the winding, the at least one conductor section of the winding and / or the metal core can be extended along the transverse direction. The effective width of the linear motor can thus be increased within the same installation space along the transverse direction.

[0010] It is advantageous if the first part of the support device is designed as an active part, wherein the first part of the support device comprises at least one, in particular U-shaped, yoke and / or at least one support coil.

[0011] It is also advantageous if the yoke comprises at least two spaced-apart yoke legs and a transverse section connecting them, which together form an interior of the yoke, wherein the primary part of the linear motor is preferably arranged at least partially within the interior of the yoke. The at least one support coil can be energized during intended use, in particular for lifting, levitating, and / or lateral guidance of the vehicle. The yoke, which is particularly U-shaped, is advantageously made of a ferromagnetic material.

[0012] By applying current to at least one support coil, an electromagnetic effect is generated. This electromagnetic effect can cause the magnetic levitation vehicle to hover on the track and / or to steer the vehicle sideways.

[0013] Furthermore, it is advantageous if the at least one support coil is arranged on at least one of the yoke legs. Preferably, a support coil is assigned to each of the two yoke legs.

[0014] It is advantageous if the at least one leg forms an angle with the at least one conductor section, wherein the angle is preferably 100° to 130°. This ensures that the at least one leg maintains a sufficient distance from the metal core and, at the same time, the winding overhang protrudes as little as possible from the iron core along the transverse direction. It is also advantageous if the winding comprises at least one coil, with several coils preferably being electrically connected so that the at least one winding is formed. This ensures simple manufacturability. The at least one coil can be prefabricated and, for example, pushed or plugged into the at least one slot of the metal core along a vertical direction. If the winding comprises several coils, these can be pushed or plugged into several slots of the metal core individually or together.The multiple coils can be electrically interconnected to form the winding. The winding can be configured, for example, as a two-layer, three-phase winding. The individual coils can be electrically connected, in particular wired, to one another, externally and / or at the winding heads. Thus, the multiple coils are electrically connected to one another.

[0015] Advantages are achieved if the at least one coil has the shape of a hexagonal prism and / or a hexagonal prism and / or if the at least one coil comprises two conductor sections, in particular those running parallel to one another, and / or two winding heads and / or four legs. Preferably, at least two of the legs are formed at the same angle to the at least one conductor section.

[0016] It is also advantageous if the two legs of the at least one winding head of the at least one winding and / or of the at least one coil, when arranged in the metal core, form a triangle, in particular an isosceles triangle, with the metal core.

[0017] It is advantageous if at least one of the legs of the at least one coil rests against at least one leg of an adjacent coil. This allows the installation space between the iron core and the first part of the support device to be utilized as fully as possible.

[0018] It is also advantageous if the two conductor sections of the at least one coil, when arranged in the metal core, are spaced apart along a vertical direction and / or a longitudinal direction of the primary unit. If the two conductor sections are spaced apart along the vertical direction, they run in two different planes. This allows the installation space to be utilized as fully as possible, even along the vertical direction.

[0019] It is also advantageous if the at least one winding and / or the at least one coil comprises a rectangular conductor cross-section, in particular with a cross-sectional width and a cross-sectional height.

[0020] It is also advantageous if the at least one winding and / or the at least one coil comprises at least one stranded wire, wherein the at least one stranded wire is preferably designed as a profile wire.

[0021] It is advantageous if the at least one conductor section of the at least one winding and / or of the at least one coil is arranged in a groove of the metal core and / or the at least one leg of the at least one winding head projects beyond the at least one metal core along a transverse direction of the primary unit.

[0022] Furthermore, it is advantageous if the at least one winding head projects beyond the at least one metal core along the transverse direction by a winding head projection, wherein the winding head projection of the at least one winding head is equal to or less than 70 mm and / or a core width of the metal core is equal to or more than 120 mm.

[0023] It is also advantageous if the at least one groove is designed to be open along the vertical direction of the primary unit, in particular on one side, so that the at least one winding and / or the at least one coil, in particular the at least one conductor section of the at least one winding and / or the at least one coil, can be inserted into the at least one groove.

[0024] It is advantageous if the metal core comprises a plurality of slots, in particular spaced apart from one another along the longitudinal direction, in which the at least one conductor section of the at least one winding and / or the at least one coil is arranged, wherein the at least two conductor sections of the at least one winding and / or the at least one coil are arranged in two different slots of the metal core, in particular spaced apart from one another along the longitudinal direction. It is also advantageous if the at least one slot comprises a slot height extending along the vertical direction and / or a slot width extending along the longitudinal direction, wherein the slot width of the slot is preferably greater than or equal to the cross-sectional width of the at least one winding and / or coil and / or the slot height of the slot is preferably greater than or equal to twice the cross-sectional height of the at least one winding and / or coil.

[0025] It is also advantageous if the at least one slot comprises at least two receiving positions for the at least one conductor section of the at least one winding and / or the at least one coil, in particular arranged adjacent to one another and / or spaced apart from one another along the vertical direction, so that at least two conductor sections, in particular of different windings and / or coils, can be received in the at least one slot. With the aid of the several receiving positions arranged adjacent to one another and / or one above the other along the vertical direction, a chording of the winding can be realized. This chording smooths the excitation curve and thus reduces the harmonics of the induced voltage.

[0026] It is also advantageous if at least two conductor sections of the at least one winding and / or of the at least one coil, in particular of at least two windings and / or coils, are arranged in the at least one groove of the metal core, in particular in the at least two receiving positions of the groove, and / or abut one another, in particular along the vertical direction.

[0027] It is also advantageous if the at least one winding and / or the at least one coil comprises at least one connecting section, wherein the two legs of the at least one winding head preferably adjoin one another at the at least one connecting section.

[0028] It is also advantageous if the at least one coil comprises a first half and a second half, wherein the first half and the second half preferably adjoin one another at the at least one connecting section along the vertical direction and / or the longitudinal direction. Furthermore, it is advantageous if the first half comprises a first conductor section and two first legs of the at least one coil and / or the second half of the at least one coil comprises a second conductor section and two second legs of the at least one coil.

[0029] It is advantageous if the at least one coil, in particular in the state arranged in the metal core, is arranged with the first half, in particular a first conductor section of the first half of the at least one coil, in a first receiving position of the at least one groove of the metal core and / or with the second half, in particular a second conductor section of the second half of the at least one coil, in a second receiving position of the at least one groove, in particular another groove, of the metal core.

[0030] It is also advantageous if the first half of the at least one coil, when arranged in the metal core, extends within a first plane and / or the second half of the at least one coil, when arranged in the metal core, extends within a second plane, wherein the first plane and the second plane are preferably formed normal to the vertical direction and / or are spaced apart from one another along the vertical direction.

[0031] It is advantageous if the at least one winding and / or the at least one coil, in particular in the region of the connecting section, comprises at least one shoulder, so that a height difference between the first half running within the first plane and the second half running within the second plane and / or the first receiving position arranged in the first plane and the second receiving position arranged in the second plane can be compensated.

[0032] It is also advantageous if the at least one connecting section is designed as a connecting corner and / or connecting curve and / or connecting web.

[0033] It is also advantageous if the primary unit is preferably designed as a three-phase primary unit and / or comprises five fully occupied poles and / or two half-occupied poles, wherein the at least two half-occupied poles preferably each border the fully occupied poles along the longitudinal direction. It is also advantageous if the primary unit comprises several coils, wherein the coils are preferably arranged with a chord, in particular one with a 5 / 6 and / or an 8 / 9 chord, within the slots of the metal core.

[0034] Furthermore, it is advantageous if several coils, in particular the conductor sections of several coils, of one of the three phases are arranged in adjacent grooves of the metal core and / or the primary unit is designed as a 2-hole primary unit or as a 3-hole primary unit.

[0035] It is also advantageous if the at least one winding and / or the at least one coil comprises at least one insulating section, with the aid of which the at least one winding and / or coil can be electrically insulated from the metal core and / or from at least one adjacent winding and / or coil.

[0036] Furthermore, the use of a winding in which at least one leg of at least one winding head of the winding is angled to at least one conductor section of the winding is proposed in a primary part of a linear motor of a magnetic levitation train.

[0037] Preferably, the primary part is designed according to the previous description, wherein the features mentioned can be present individually or in any combination.

[0038] Furthermore, a drive device for a magnetic levitation train with a vehicle-mounted primary unit and a rail arrangement is proposed. According to the invention, the primary unit is designed as described above, whereby the aforementioned features can be present individually or in any combination.

[0039] Furthermore, a magnetic levitation train is proposed with a vehicle on which a primary unit of a drive device is arranged and a track comprising a rail arrangement. According to the invention, the drive device is designed as described above, whereby the aforementioned features can be present individually or in any combination. Further advantages of the invention are described in the following exemplary embodiments. They show:

[0040] Figure 1 is a highly simplified schematic sectional view of a magnetic levitation train according to an embodiment,

[0041] Figure 2 is a plan view of a primary unit according to an embodiment,

[0042] Figure 3 is a schematic plan view of a coil of the primary unit of the embodiment of Figure 2,

[0043] Figure 4 is a sectional side view of a primary unit according to an alternative embodiment, and

[0044] Figure 5 is a schematic plan view of a coil of the primary unit of the embodiment of Figure 4.

[0045] In the following description of the figures, identical reference numerals are used for identical and / or at least comparable features in the various figures. The individual features, their design, and / or mode of operation are usually only explained in detail when first mentioned. If individual features are not explained in detail again, their design and / or mode of operation correspond to the design and mode of operation of the features with the same or identical functions already described.

[0046] Figure 1 shows a highly simplified schematic sectional view of a magnetic levitation train 3 according to one exemplary embodiment. The magnetic levitation train 3 comprises a primary unit 1 arranged on a vehicle 33 and a rail arrangement 32 of a drive device 2 arranged on a track 34. Both the primary unit 1 and the rail arrangement 32 each have components of a linear motor, in particular a short-stator linear motor, and a support device. The linear motor serves to move the vehicle 33. The support device has the purpose of lifting the vehicle 33 and keeping it in a suspended state. In addition, the support device can be designed to guide the vehicle 33 laterally. The primary unit 1 is the active part of the drive device 2, i.e., the part supplied with power. The rail arrangement 32 is the passive part of the drive device 2, i.e., the part that reacts to the primary unit 1.

[0047] The primary unit 1 comprises a first part 4 of the support device. In the exemplary embodiment shown, the first part 4 is designed as the active part of the support device. The first part 4 of the support device is supplied with power. The rail arrangement 32 comprises a second part 5 of the support device. In the exemplary embodiment shown, the second part 5 is designed as the passive part of the support device and preferably has a U-shaped reaction rail. The first part 4 of the support device comprises a yoke, in particular a U-shaped one. The yoke comprises two yoke legs, which are spaced apart from one another, in particular along the transverse direction QR, and a transverse section connecting them to one another. A support coil is arranged on each of the yoke legs, with the aid of which support coil the vehicle 33 can be held in position in the hovering state or along a vertical direction HR.

[0048] The two yoke legs and the transverse section of the first part 4 of the support device define an interior space in which a primary part 6 of the linear motor is arranged. The primary part 6 is the part of the linear motor that is supplied with power. The primary part 6 is connected to the vehicle 33, in particular indirectly via the first part 4 of the support device. A secondary part 7 of the linear motor is arranged on the travel path 34, in particular indirectly via the second part 5 of the support unit. The secondary part 7 comprises, for example, a reaction plate, preferably made of aluminum, and / or an iron plate. With the aid of the linear motor, the vehicle 33 can be moved relative to the travel path 34 along a longitudinal direction LR. The longitudinal direction LR can also be referred to as the direction of travel.The primary unit 1 of the drive device 2 according to the invention and in particular the primary part 6 of the linear motor is explained in more detail below in the exemplary embodiments of Figures 2 to 5.

[0049] Figure 2 shows a top view of a primary unit 1 according to an embodiment. For a clearer representation, only a section (cut along a transverse direction QR at the axis of symmetry and along the longitudinal direction LR) of the primary unit 1 is shown. The primary unit 1 comprises the first part 4 of the support unit and the primary part 6 of the linear motor. Similar to the embodiment of Figure 1, the first part 4 of the support device also comprises the support coil and the yoke. The yoke is shown in dashed lines. The primary unit 1 can be used in the drive device 2 and / or the magnetic levitation train 3 of the embodiment of Figure 1.

[0050] The primary part 6 of the linear motor is arranged within the yoke of the first part 4 of the support device. The primary part 6 of the linear motor comprises at least one metal core 8 and at least one winding 9. The metal core 8 is preferably a ferromagnetic metal core 8 or an iron core. The at least one winding 9 has at least one conductor section 10, 11 arranged within the metal core 8 and at least one winding head 12 arranged outside the metal core 8. Due to the arrangement of the at least one conductor section 10, 11 within the metal core 8, this can be referred to as the active conductor section 10, 11. Due to the arrangement of the at least one winding head 12 outside the metal core 8, this can be referred to as the inactive winding head 12. The winding head 12 thus projects beyond the metal core 8 along the transverse direction QR.To accommodate the at least one winding 9, in particular the at least one conductor section 10, 11 of the at least one winding 9, the metal core 8 in the embodiment shown comprises at least one groove 19.

[0051] In the exemplary embodiment shown, the winding 9 comprises at least one coil 16. The at least one coil 16 of the exemplary embodiment in Figure 2, in which it is only half shown, is shown in full in Figure 3. The following features of the coil 16 per se are therefore shown or at least indicated in both Figure 2 and Figure 3. Preferably, the at least one winding 9 is formed from a plurality of coils 16. The individual coils 16 can be designed independently of one another and, for example, can be brought into electrical connection with one another in the region of the winding overhang 12. In the exemplary embodiment shown, a plurality of coils 16 are shown, with only one of the coils 16 being provided with a reference symbol. The remaining coils 16 are shown only in dashed lines for reasons of clarity.In addition, one of the slots 19 of the metal core 8 is free, wherein the at least one coil 16 and / or at least one winding 9 can be arranged in the slot 19. Thus, during the intended use of the primary unit 1, the at least one conductor section 10, 11 and / or at least one of the conductor sections 10, 11 of the at least one winding 9 and / or of the at least one coil 16 is preferably arranged in each of the slots 19. As an alternative to the illustrated embodiment, it is conceivable for the winding 9 to be formed as a continuous winding 9.

[0052] The at least one winding overhang 12 comprises at least one leg 13, 14, wherein the at least one leg 13, 14 is angled relative to the at least one conductor section 10, 11. Compared to round windings known in the prior art, this makes it possible to save installation space in the transverse direction QR or to widen the metal core 8 along the transverse direction QR. It should be noted here that the distance in the transverse direction QR between the at least one winding overhang 12 and the first part 4 of the support device shown in the exemplary embodiment in Figure 2 is shown very large for reasons of clarity. It is also conceivable for the at least one winding overhang 12 to be adjacent to the first part 4 of the support device.

[0053] In the region of the bend between the at least one leg 13, 14 and the at least one conductor section 10, 11, the coil 16 can comprise at least one rounded portion 35, in particular on the outer side, as shown in the exemplary embodiment. This can simplify the manufacture of the at least one coil 16. Thus, the at least one winding 9 and / or the at least one coil 16 comprises at least one stranded wire, wherein the at least one stranded wire is preferably designed as a profiled wire. If this strand is formed into the at least one winding 9 and / or the at least one coil 16, the rounded portion 35 can arise, in particular between the at least one conductor section 10, 11 and the at least one leg 13, 14. Additionally or alternatively, the rounded portion 35 can be arranged in the region of at least one connecting section 26.

[0054] The at least one leg 13, 14 forms an angle 15 with the at least one conductor section 10, 11. The angle 15 is preferably between 100° and 130°. The at least one leg 13, 14 and / or the at least one conductor section 10, 11 is preferably straight and / or bend-free. The at least one coil 16 preferably comprises two conductor sections 10, 11 and two winding heads 12, wherein each of the winding heads 12 preferably comprises two legs 13, 14. In the exemplary embodiment shown, due to the simplified representation as a half-side section, only one of the two winding heads 12 per coil 16 and the two conductor sections 10, 11 are only partially shown. From Figure 3 it can be seen that the coil 16 has the shape of a hexagonal prism. The four legs 13, 14 of the two winding heads 12 and the two conductor sections 10, 11 are to be understood as edges of the hexagonal prism.Additionally or alternatively, the at least one coil 16 may be considered a hexagonal prism, although at least one of the corners of the hexagonal prism includes the rounding 35 and / or is rounded.

[0055] In the exemplary embodiment shown, the two legs 13, 14 of the at least one winding overhang 12 each form an angle 15 with the respective conductor section 10, 11. This angle 15 is preferably the same. When arranged in the metal core 8, the two legs 13, 14 of the at least one winding overhang 12 form an isosceles triangle with the metal core 8 in plan view. The two legs 13, 14 of the at least one winding overhang 12 meet at the at least one connecting section 26. In the exemplary embodiment shown, a shoulder 31 is also arranged in the region of the connecting section 26, by means of which a height difference between the two legs 13, 14 and / or two halves 27, 28 of the at least one coil 16 can be compensated. This height difference is explained in more detail in the following exemplary embodiments in Figures 4 and 5.

[0056] The space required by the winding overhang 12 along the transverse direction QR can, for example, be called the winding overhang 20. As shown in the exemplary embodiment shown, the at least one winding overhang 12 projects beyond the at least one metal core 8 by the winding overhang 20 along the transverse direction QR. The winding overhang 20 is preferably less than 70 mm. This can be achieved, for example, with the aid of the angled legs 13, 14 of the winding overhang 12, among other things. A core width 21 of the metal core 8 is preferably more than 120 mm. In the exemplary embodiment shown, the core width 21 is only half shown, since the metal core 8 is also only half shown. The sum of the core width 21 and the two winding overhangs 20 on both sides of the metal core 8 thus result in the installation space required by the primary part 6. The maximum installation space is limited by the first part 4 of the support device.

[0057] Figure 3 shows a sectional side view of a primary unit 1 according to an alternative embodiment. The primary unit 1 is preferably cut centrally through the metal core 8. In the embodiment shown, the metal core 8 of the primary part 6 is arranged on the first part 4 of the support device, in particular on the transverse section of the first part 4. In addition to the primary unit 1, the embodiment of Figure 4 shows the at least one coil 16, which, during intended use of the primary unit 1, is arranged within the at least one groove 19 of the metal core 8. So that the features of the coil 16 and the metal core 8 can be represented in a simplified manner, one of the coils 16 is shown both in the metal core 8 and above the metal core 8. The coil 16 of the embodiment of Figure 4 is also shown alone in Figure 5.

[0058] The coil 16 of the embodiment of Figures 2, 3 and the coil 16 of the embodiment of Figures 4, 5 differ primarily at the connecting section 26. However, it is conceivable that the coil 16 of the embodiment of Figure 3 is used in the primary unit 1 of the embodiment of Figure 4. Additionally or alternatively, it is conceivable that the coil 16 of the embodiment of Figure 5 is used in the primary unit 1 of the embodiment of Figure 2.

[0059] Here too, the metal core 8 comprises the at least one slot 19 for the at least one winding 9. Here too, the winding 9 comprises the at least one coil 16. In the exemplary embodiment shown, the at least one slot 19 comprises two receiving positions 24, 25. Additionally or alternatively, it is also conceivable for the slot 19 to comprise only one of the receiving positions 24, 25 or more than two receiving positions 24, 25. In the exemplary embodiment shown, a first half 27 and / or a first conductor section 10 of the at least one coil 16 is arranged in at least one first receiving position 24. In the exemplary embodiment shown, a second half 28 and / or a second conductor section 11 of the at least one coil 16 is arranged in at least one second receiving position 25.Each of the slots 19 comprises the first receiving position 24 and the second receiving position 25, wherein conductor sections 10, 11 of different coils 16 are preferably always arranged in one of the slots 19. The at least one coil 16 shown is arranged with the first half 27 and / or the first conductor section 10 in the first receiving position 24 of the at least one slot 19 and / or with the second half 28 and / or the second conductor section 11 in the second receiving position 25 of at least one other slot 19 of the metal core 8. In this way, for example, a chord for the linear motor can be realized. The at least one winding 9 and / or the at least one coil 16 comprises a rectangular conductor cross-section in the illustrated embodiment. The at least one conductor section 10, 11 has a cross-sectional width 17 and a cross-sectional height 18.A slot width 23 of the slot 19 is preferably greater than or equal to the cross-sectional width 17 of the at least one winding 9 and / or coil 16. A slot height 22 of the slot 19 is preferably greater than or equal to twice the cross-sectional height 18 of the at least one winding 9 and / or coil 16. This ensures that the coil 16 with the conductor sections 10, 11 can be arranged within the receiving positions 24, 25 of the at least one slot 19.

[0060] The above-mentioned height difference between the first half 27 and the second half 28 of the at least one coil 16 can be compensated with the help of the shoulder 31 in the coil 16. The at least one shoulder 31 provides the height difference between the first half 27 and the second half 28 of the at least one coil 16. The groove 19, on the other hand, has the above-mentioned receiving positions 24, 25. The first receiving position 24 of each groove 19 is arranged in a first plane 29. The second receiving position 25 of each groove 19 is arranged in a second plane 30. When arranged in the metal core 8, the first half 27 of the at least one coil 16 runs within the first plane 29 and the second half 28 of the at least one coil 16 runs within the second plane 30. As a result, the plurality of coils 16 can be designed to overlap one another.

[0061] List of reference symbols

[0062] 1 primary unit

[0063] 2 drive device

[0064] 3 Maglev train

[0065] 4 first part

[0066] 5 second part

[0067] 6 Primary part

[0068] 7 Secondary part

[0069] 8 metal core

[0070] 9 winding

[0071] 10 first ladder section

[0072] 11 second ladder section

[0073] 12 winding head

[0074] 13 first leg

[0075] 14 second leg

[0076] 15 angles

[0077] 16 coil

[0078] 17 cross-sectional width

[0079] 18 cross-sectional height

[0080] 19 grooves

[0081] 20 winding head projection

[0082] 21 core width

[0083] 22 groove height

[0084] 23 groove width

[0085] 24 first recording position

[0086] 25 second recording position

[0087] 26 connecting section

[0088] 27 first half

[0089] 28 second half

[0090] 29 first level

[0091] 30 second level

[0092] 31 Paragraph 32 Rail arrangement

[0093] 33 vehicles

[0094] 34 Track

[0095] 35 Rounding

[0096] HR vertical direction

[0097] LR longitudinal direction

[0098] QR transverse direction

Claims

Patent claims 1. Primary unit (1) of a drive device (2) of a magnetic levitation train (3), with a first part (4) of a support device, and with a primary part (6) of a linear motor, in particular a short stator linear motor, wherein the primary part (6) of the linear motor comprises at least one metal core (8) and at least one winding (9), and wherein the at least one winding (9) comprises at least one conductor section (10, 11) arranged inside the metal core (8) and at least one winding head (12) arranged outside the metal core (8), characterized in that the at least one winding head (12) comprises at least one leg (13, 14), wherein the at least one leg (13, 14) is angled relative to the at least one conductor section (10, 11).

2. Primary unit according to the preceding claim, characterized in that the at least one leg (13, 14) forms an angle (15) with the at least one conductor section (10, 11), wherein the angle (15) is preferably 100° to 130°.

3. Primary unit according to one of the preceding claims, characterized in that the winding (9) comprises at least one coil (16), wherein a plurality of coils (16) are preferably in electrical connection, so that the at least one winding (9) is formed.

4. Primary unit according to one of the preceding claims, characterized in that the at least one coil (16) has the shape of a hexagonal prism and / or hexagonal prism and / or the at least one coil (16) comprises two conductor sections (10, 11) and / or two winding heads (12) and / or four legs (13, 14) and / or the two legs (13, 14) of the at least one winding head (12) of the at least a winding (9) and / or the at least one coil (16) in the state arranged in the metal core (8) form a triangle, in particular an isosceles triangle, with the metal core (8).

5. Primary unit according to one of the preceding claims, characterized in that the at least one winding (9) and / or the at least one coil (16) comprises at least one stranded wire and / or a rectangular conductor cross-section, in particular with a cross-sectional width (17) and a cross-sectional height (18), wherein the at least one stranded wire is preferably designed as a profile wire.

6. Primary unit according to one of the preceding claims, characterized in that the at least one conductor section (10, 11) of the at least one winding (9) and / or the at least one coil (16) is arranged in a groove (19) of the metal core (8) and / or the at least one leg (13, 14) of the at least one winding head (12) projects beyond the at least one metal core (8) along a transverse direction (QR) of the primary unit (1).

7. Primary unit according to one of the preceding claims, characterized in that the at least one winding head (12) projects along the transverse direction (QR) by a winding head projection (20) beyond the at least one metal core (8), wherein the winding head projection (20) of the at least one winding head (12) is equal to or less than 70 mm and / or a core width (21) of the metal core (8) is equal to or more than 120 mm.

8. Primary unit according to one of the preceding claims, characterized in that the at least one groove (19) comprises a groove height (22) extending along a vertical direction (HR) of the primary unit (1) and / or a groove width (23) extending along a longitudinal direction (LR) of the primary unit (1), wherein the groove width (23) of the groove (19) is preferably greater than or equal to the cross-sectional width (17) of the at least one winding (9) and / or coil (16) and / or the groove height (22) of the groove (19) is preferably greater than or equal to twice the cross-sectional height (18) of the at least one winding (9) and / or coil (16).

9. Primary unit according to one of the preceding claims, characterized in that the at least one groove (19) comprises at least two receiving positions (24, 25), in particular arranged next to one another and / or spaced apart from one another along the vertical direction (HR), for the at least one conductor section (10, 11) of the at least one winding (9) and / or the at least one coil (16), so that at least two conductor sections (10, 11), in particular of different windings (9) and / or coils (16), can be received in the at least one groove (19).

10. Primary unit according to one of the preceding claims, characterized in that the at least one winding (9) and / or the at least one coil (16) comprises at least one connecting section (26), wherein a first half (27) and a second half (28) of the at least one coil (16) preferably adjoin one another at the at least one connecting section (26) along the vertical direction (HR) and / or the longitudinal direction (LR). 11 . Primary unit according to one of the preceding claims, characterized in that the at least one coil (16) is arranged with the first half (27), in particular a first conductor section (10) of the first half (27), in a first receiving position (24) of the at least one groove (19) and / or with the second half (28), in particular a second conductor section (11) of the second half (28), in a second receiving position (25) of the at least one groove (19), in particular another groove (19) of the metal core (8).

12. Primary unit according to one of the preceding claims, characterized in that the first half (27) of the at least one coil (16) in the state arranged in the metal core (8) extends within a first plane (29) and / or the second half (28) of the at least one coil (16) in the state arranged in the metal core (8) extends within a second plane (30), wherein the at least one winding (9) and / or the at least one coil (16), in particular in the region of the connecting section (26), preferably comprises at least one shoulder (31), so that a height difference between the first half (27) extending within the first plane (29) and the second half (28) extending within the second plane plane (30) extending second half (28) and / or the first receiving position (24) arranged in the first plane (29) and the second receiving position (25) arranged in the second plane (30).

13. Use of a winding (9), in which at least one leg (13, 14) of at least one winding head (12) of the winding (9) is angled to at least one conductor section (10, 11) of the winding (9), in a primary part (6) of a linear motor of a magnetic levitation train (3), in particular according to one or more of the preceding claims.

14. Drive device (2) of a magnetic levitation train (3) with a vehicle-side primary unit (1) and a rail arrangement (32), characterized in that the primary unit (1) is designed according to one of the preceding claims.

15. Magnetic levitation train (3) with a vehicle (33) on which a primary unit (1) of a drive device (2) is arranged and a track (34) which comprises a rail arrangement (32), characterized in that the drive device (2) is designed according to the previous claim.

Images