Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
  • H02K15/0056—Manufacturing winding connections
  • H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals
  • H02K15/0081—Connecting winding sections; Forming leads; Connecting leads to terminals for form-wound windings
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
  • H02K15/06—Embedding prefabricated windings in machines
  • H02K15/062—Windings in slots; salient pole windings
  • H02K15/064—Windings consisting of separate segments, e.g. hairpin windings
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K3/00—Details of windings
  • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
  • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K3/00—Details of windings
  • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
  • H02K3/28—Layout of windings or of connections between windings

Definitions

• the free conductor ends provided for the formation of reversing connectors can advantageously be bent into a position in which they do not impede the necessary processing of the other conductor ends.
• the free conductor ends provided for the formation of reversing connectors are easily and freely accessible in this position.
• FIG. 5 shows a schematic view of a winding scheme of an exemplary multi-phase winding
• FIGS. 6 to 8 shows a perspective view of the arrangement from FIGS. 6 to 8 without the second bending tool but with a setting tool
• the plurality of electrical conductors 310 are exemplarily provided with a plurality of U-shaped wire elements 510, i. H. with hairpin or U-pins.
• the bow-shaped or U-shaped wire elements are also referred to below as the "U-pins”.
• the plurality of electrical conductors 310 can also be implemented with a plurality of I-pins, as described above.
• the winding configuration is formed
• FIG. 4(B) provides a plurality of phase terminals 520 for the phases II, V, W of Fig. 4(B), providing a plurality of star point terminals 530 to form the star point 428 of Fig. 4(B), forming a plurality of step shorteners 550, and forming a plurality of Reverse connectors 560.
• the plurality of step shorteners 550 includes two step shorteners 552, 554, which are preferably configured on the welding side 114 for the winding phase 422, which form a shortened winding step of only five slots and serve to guide the same current in the same direction in adjacent slots to allow.
• step shortener 552 connects U pins 516, 512 in slots 56 (respectively 578) and 1 (respectively 572).
• FIGS. 6 to 16 An exemplary method for producing the machine component 110 with the multi-phase winding 400 having the predetermined winding configuration 420 is described below with reference to FIGS. 6 to 16 , the machine component 110 having the base body 200 with the plurality of slots 210 .
• the method preferably begins with the equipping of the plurality of grooves 210 with the plurality of electrical conductors 310 or the plurality of U-pins 510, as described in FIG. the plurality of free conductor ends 315 protrudes.
• Fig. 6 to Fig. 8 show in accordance with Fig.
• Fig. 9 and Fig. 10 show the tool 600 and the machine component 110 from Fig. 6 to Fig. 8, which has the base body 200 with the plurality of grooves 210, the plurality of grooves 210 having the associated plurality of electrical conductors 310 is equipped, and wherein the plurality of electrical conductors 310 has the plurality of free conductor ends 315, which extends out of the plurality of grooves 210 on the welding side 114 of the base body 200.
• the machine component 110 is shown after the bending of the free conductor ends 580 with the welding sections 680 described in FIGS Setting tool 910 on the welding side 114.
• the plurality of free conductor ends 315 are now set in the circumferential direction 340 of FIG. i.e. in the present exemplary embodiment, e.g. the phase winding 422 from Fig. 5.
• the free conductor ends 580 bent in the radial direction of the base body 200 according to Fig. 6 to Fig. 8 are connected to the welded sections 680, which, as described above, are in the grooves 613 of the base body 612 held, but not restricted.
• the plurality of free conductor ends 315 are set in the circumferential direction 340 by the setting tool 910, which illustratively has an outer and an inner setting disk 912, 914.
• the outer setting wheel 912 is preferably designed such that all of of the plurality of free conductor ends 315 gripped by the outer setting disk 912 when the outer setting disk 912 is rotated in the circumferential direction 340, eg clockwise in FIG. 9, by a predetermined setting step. In the present exemplary embodiment, this predetermined setting step amounts to three grooves.
• the segment 1010 is preferably designed to implement the second specified setting step in such a way that it is larger than the first specified setting step.
• the welding sections 680 are bent over using the bending tools 610, 620 with the base bodies 612, 622 and the stamps 614, 624 from Fig. 6 to Fig. 8.
• the stamp 614 is preferably displaced against the stamp 624 in in the axial direction 330, as indicated by an arrow 1100 in FIG. 11, with the ram 614 displacing the ram 624 as shown in FIG. Because the free conductor ends 580 are held between the bases 612, 622, the weld portions 680 are aligned parallel to the base 622.
• the stamp 614 preferably has associated longitudinal grooves 1210, 1220, in which the welded sections 680 are held or guided during bending, as shown in FIG. 12 and FIG.
• a weld portion 682 is disposed in longitudinal groove 1210 and a weld portion 684 is disposed in longitudinal groove 1220.
• the longitudinal grooves 1210, 1220 can have different depths in the radial direction 320, so that the weld portions 680 can be bent into different traces, as shown in FIGS. 14 and 15.
• the longitudinal groove 1210 has a smaller depth than the longitudinal groove 1220.
• FIGS. 11 to 13 show the tool 600 and the machine component 110 from FIGS. 11 to 13 which has the base body 200 with the plurality of grooves 210 .
• the machine component 110 is shown after being bent as described with reference to FIGS. 11 to 13 .
• the welding sections 680 are preferably set against one another, as described below.
• the welding sections 680 are set using the bending tools 610, 620 with the base bodies 612, 622 and the stamps 614, 624 from Fig. 11 to Fig. 13.
• the stamp 624 is preferably first displaced against the stamp 614 in the axial direction 330, as indicated by an arrow 1400 in Fig. 14, wherein a predetermined number of the weld sections 680 as shown in Fig. 14 are arranged in a recess 625 of the punch 624, while the remaining weld sections 680 are further held by the punch 614 will.
• the welded sections 680 held in the longitudinal grooves 1210 of the stamp 614 which are arranged in a conductor track 1530 according to Fig. 15, are arranged in the recess 625, while the welded sections 680 held in the longitudinal grooves 1220 of the stamp 614, which according to Fig. 15 are arranged in a conductor track 1540 are further held by the stamp 614.
• the welding section 682 is thus arranged in the recess 625 of the stamp 624, while the welding section 684 is held by the stamp 614.
• the bending tools 610, 620 are removed from the machine component 110.
• the punch 614 is displaced in the direction indicated by the arrow 1100 in FIG Machine component 110 is possible.
• the bending tool 620 can also be removed from the machine component 110 in a similar manner.
• the crossed weld portions 680 are located in the two different conductor traces 1530, 1540 as described above.
• the other conductor ends of the plurality of free conductor ends 315, which are twisted according to FIGS. 9 and 10, are illustratively arranged in two conductor tracks 1510, 1520 according to FIG.
• a total of four conductor tracks 1510, 1520, 1530, 1540 are used.
• FIG. 16 and FIG. 17 show the machine component 110 from FIG. 14 and FIG the plurality of electrical conductors 310 having the plurality of free conductor ends 315 extending out of the plurality of grooves 210 on the weld side 114 of the base body 200 .
• the machine component 110 is shown after the setting described with reference to FIGS. 14 and 15 .
• a number of free conductor ends 520 according to FIG. 5 of the plurality of free conductor ends predetermined by the predetermined winding configuration 420 are preferably bent 315 in the radial direction 320 of the base body 200 to form phase connections U, V, W.
• electrical contact is preferably made, in particular by means of welding, between associated free conductor ends of the plurality of free conductor ends 315 on the welding side 114 of the base body 200 to form the multi-phase winding 400 in the predetermined winding configuration 420.
• Fig. 18 shows an exemplary winding scheme 1800 for realizing the multi-phase winding 400 with the predetermined winding configuration 430 of Fig. 4(C) for the machine component 110 of Fig. 1, which has the component side 112 and the welding side 114, using the base body 200 3.
• the winding schematic 1800 shows only the phase winding 432 of the winding configuration 430 disposed on the machine component 110 for simplicity and clarity of the drawing.
• the winding scheme 1800 essentially corresponds to the winding scheme 500 of FIG. 5. Only the electrically conductive connection 540 for forming the star point 428 according to the winding scheme 500 is omitted in the winding scheme 1800, since the star point connections 530 in the winding scheme 1800 also serve as phase connections. Therefore, for the sake of simplicity and conciseness of description, a detailed description of the winding scheme 1800 will be omitted.
• 19 and 20 show the machine component 110 of FIGS. 1 and 3, respectively, in which the multi-phase winding 400 with the predetermined winding configuration 430 of FIG. 4( C) was made.
• 19 and 20 essentially correspond to FIGS. 16 and 17. Only the electrically conductive connection 540 for forming the star point 428 according to FIGS. 16 and 17 is omitted, so that a detailed description is given for the sake of simplicity and brevity of the description of the machine component 110 of FIGS. 19 and 20 is dispensed with.
• Fig. 21 shows an exemplary winding scheme 2100 for realizing the multi-phase winding 400 with the predetermined winding configuration 410 of Fig. 4(A) for the machine component 110 of Fig. 1, which has the component side 112 and the welding side 114, using the base body 200 with the plurality of slots 210 and the plurality of electrical conductors 310 as shown in FIG. 3.
• the winding scheme 2100 shows only the phase winding 411 of the winding configuration 410 disposed on the machine component 110 for simplicity and clarity of the drawing.
• the winding scheme 2100 is shown in analogy to FIG. 5 , with functionally identical elements being identified by identical reference symbols. Accordingly, the winding scheme 2100 also includes this Slot numbering scheme 570 and the plurality of electrical conductors 310 implemented with the plurality of II pins 510 forming the plurality of free conductor ends 315. Furthermore, the winding scheme 2100 also includes the plurality of phase connections 520, the electrically conductive connection 540, which is used here to form the star point 418 of FIG Realization of the multi-phase winding 400 with the predetermined winding configuration 410 from FIG. 4(A) means that the plurality of step shorteners 550 according to the winding scheme 500 from FIG. 5 can be dispensed with.

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• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Power Engineering (AREA)
• Windings For Motors And Generators (AREA)

Priority Applications (1)

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Publications (1)

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ID=80735871

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Citations (3)

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• 2021
  • 2021-01-27 DE DE102021200738.4A patent/DE102021200738A1/de active Pending
• 2022
  • 2022-01-24 WO PCT/EP2022/051420 patent/WO2022161885A1/de active Application Filing
  • 2022-01-24 CN CN202280025150.0A patent/CN117121353A/zh active Pending

Patent Citations (3)

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