WO2014050409A1 - 電気機械用電機子巻線の製造方法 - Google Patents
電気機械用電機子巻線の製造方法 Download PDFInfo
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- WO2014050409A1 WO2014050409A1 PCT/JP2013/072857 JP2013072857W WO2014050409A1 WO 2014050409 A1 WO2014050409 A1 WO 2014050409A1 JP 2013072857 W JP2013072857 W JP 2013072857W WO 2014050409 A1 WO2014050409 A1 WO 2014050409A1
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- conductor wire
- winding
- electric machine
- bending
- coil end
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- 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
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- 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
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—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
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—Wound windings
- H02K15/0442—Loop windings
- H02K15/045—Form wound coils
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- 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
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0435—Wound windings
- H02K15/0464—Lap 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
- H02K15/065—Windings consisting of complete sections, e.g. coils, waves
- H02K15/066—Windings consisting of complete sections, e.g. coils, waves inserted perpendicularly to the axis of the slots or inter-polar channels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53143—Motor or generator
Definitions
- the present invention relates to a method for manufacturing an armature winding used in an electric machine such as a rotary electric machine such as an electric motor or a generator, or a linear motion machine such as a linear motor.
- the winding configured by winding the conductor wire in a slot separated by two or more slots is referred to as a distributed winding winding. That is, the distributed winding is wound so that the conductor wire extending from one slot enters another slot across two or more consecutive teeth.
- a rectangular conductor wire is wound around an edgewise winding a plurality of times to produce a spiral first intermediate coil (winding step), and a first using a press die.
- a second outer coil having an outer peripheral shape set by bending the intermediate coil is manufactured (peripheral forming step), and one coil end of the second intermediate coil is bent and formed using a press die to form an arc-shaped half coil.
- a third intermediate coil having a circular portion is produced (arc forming step), and a lane change portion is formed by bending one coil end of the third intermediate coil using a press die (lane change portion forming step). The other coil end of the third intermediate coil was bent inward in the radial direction by using a press die (bending step) to produce a reference unit for the armature winding.
- Patent Document 1 a bundle of rectangular conductor wires wound in edgewise winding is bent by bending using a press die in each step of producing a reference unit for armature winding. Therefore, when changing the material and dimensions of the rectangular conductor wire, the conditions such as spring back after processing change, so there is a problem that the process at the time of setup such as replacing the press die is increased and productivity is lowered. there were. Furthermore, since a bundle of rectangular conductor wires is bent at the same time, a large bending stress acts on the rectangular conductor wires, and there is a problem that the insulating film coated on the rectangular conductor wires is damaged and the insulating performance is deteriorated. .
- An object of the present invention is to obtain a method of manufacturing an armature winding for an electric machine that can improve the insulation performance by suppressing the occurrence of damage to the insulating coating coated on the conductor wire.
- the method of manufacturing an armature winding for an electric machine is configured by winding a rectangular conductor wire spirally m times (however, m is a natural number of 2 or more), and 2 m wires are arranged in each row.
- a linear portion arranged in a row, and a coil end that connects between ends of the straight portion between rows, and the straight portion connected by the coil end is set in the arrangement direction of the straight portion
- a method of manufacturing an armature winding for an electric machine that is housed in each of slots located on both sides of a plurality of continuous teeth of an iron core and arranged at a pitch of one slot in the arrangement direction of the slots,
- the wire is set in the length direction of the flat conductor wire
- a conductor wire feeding step that feeds only a predetermined amount
- a conductor wire fixing step that clamps and fixes the flat conductor wire by a holding jig, and a former is pressed against the base side of the flat conductor wire that extends from the holding jig.
- the straight conductor wire is sent while the straight conductor wire is being sent.
- the connecting portion between the coil end and the coil end is bent at a set angle, and the flat conductor wire is wound spirally.
- the connecting portion between the linear portion and the coil end in the winding body is bent by pressing bending using a former, the number of steps by butt bending using a press die is reduced. Therefore, it is possible to reduce the tool change process and setup process due to changes in wire rod and dimensions, improve productivity, and suppress the occurrence of damage to the insulation film coated on the rectangular conductor wire, thereby improving the insulation performance. . Insulating coating that is applied to the flat conductor wire because the connecting portion between the straight portion and the coil end is bent at a set angle while feeding the flat conductor wire, and the stress acting on the flat conductor wire is reduced. The occurrence of damage can be suppressed, and the insulation performance can be improved.
- FIG. 1 is a half sectional view showing a rotating electrical machine according to Embodiment 1 of the present invention
- FIG. 2 is a perspective view showing a main part of the rotating electrical machine according to Embodiment 1 of the present invention
- FIG. 3 is an embodiment of the present invention.
- 4 is a perspective view showing an armature applied to the rotary electric machine according to Embodiment 1
- FIG. 4 is a perspective view showing an iron core block constituting the armature core applied to the rotary electric machine according to Embodiment 1 of the present invention
- FIG. FIG. 6 is a perspective view showing a winding assembly constituting an armature winding of an armature applied to the rotary electric machine according to Embodiment 1 of the present invention
- FIG. 6 is a winding in the rotary electric machine according to Embodiment 1 of the present invention.
- 7 is a perspective view showing a winding body constituting the wire assembly
- FIG. 7 is a front view showing the winding body constituting the winding assembly in the rotary electric machine according to Embodiment 1 of the present invention
- FIG. 9 is a perspective view of the winding body constituting the winding assembly in the rotary electric machine according to Embodiment 1 of the present invention as seen from the front and obliquely above, and FIG. FIG.
- FIG. 11 is an end view of an essential part of a state in which two winding bodies in the rotary electric machine according to Embodiment 1 share one slot and are mounted on an armature core as viewed from one end in the axial direction.
- FIG. 12 is a development view in which the three winding bodies in the rotating electrical machine according to the first embodiment are continuously mounted in the same slot group of the armature core in the circumferential direction, as viewed from one end in the axial direction. It is the expanded view which looked at the state by which three winding bodies in the rotary electric machine which concerns on the form 1 were continuously mounted
- the coil ends are shown linearly.
- a rotating electric machine 100 as an electric machine includes a housing 1 having a bottomed cylindrical frame 2 and an end plate 3 that closes an opening of the frame 2, and a state in which the rotating electric machine 100 is fitted in a cylindrical portion of the frame 2.
- the armature 10 fixed to the armature 10 and the rotary shaft 6 rotatably supported on the bottom of the frame 2 and the end plate 3 via the bearing 4 are rotatably disposed on the inner peripheral side of the armature 10.
- a rotor 5 made of the same.
- the rotor 5 is arranged with a rotor core 7 fixed to the rotary shaft 6 inserted in the axial center position, and arranged at a pitch set in the circumferential direction embedded in the outer peripheral surface side of the rotor core 7.
- the rotor 5 is not limited to a permanent magnet type rotor, and a squirrel-cage rotor in which a non-insulated rotor conductor is housed in a slot of a rotor core and both sides are short-circuited by a short-circuit ring, or an insulated conductor. You may use the winding-type rotor which attached the wire to the slot of the rotor core.
- the armature 10 includes an armature core 11 and an armature winding 20 attached to the armature core 11.
- the number of poles of the rotor 5 is 8
- the number of slots of the armature core 11 is 48
- the armature winding 20 is a three-phase winding. That is, the slots 13 are formed in the armature core 11 at a rate of two per phase per phase.
- the number of slots per phase per pole is 2.
- the core block 12 is obtained by dividing an annular armature core 11 into 48 equal parts in the circumferential direction, and is produced by laminating and integrating a set number of electrical steel sheets as shown in FIG. Core back portion 12a and teeth 12b extending radially inward from the inner peripheral wall surface of the core back portion 12a. Then, the armature core 11 is formed by arranging the 48 core blocks 12 in the circumferential direction by integrating the teeth 12b radially inward, butting the side surfaces in the circumferential direction of the core back portion 12a. It is configured in an annular shape.
- the slots 13 constituted by the iron core blocks 12 adjacent in the circumferential direction are arranged at an equiangular pitch in the circumferential direction so as to open to the inner circumferential side.
- the teeth 12b are formed in a tapered shape in which the circumferential width gradually decreases inward in the radial direction, and the cross section of the slot 13 is rectangular.
- the circumferential direction corresponds to the arrangement direction of the slots 13.
- the armature winding 20 is configured by connecting a winding assembly 21 attached to the armature core 11.
- the winding assembly 21 is formed by arranging winding bodies 22 accommodated in pairs of slots 13 located on both sides of six consecutive teeth 12b in the circumferential direction at a pitch of one slot. Is done. Winding ends 22g described later extend in the axial direction, and are arranged in the circumferential direction at a pitch of 1 slot on the inner diameter side of the winding assembly 21. Further, winding ends 22h described later extend in the axial direction in the same direction as the winding end 22g, and are arranged in the circumferential direction at a one-slot pitch on the outer diameter side of the winding assembly 21.
- the winding body 22 is, for example, a conductor wire having a rectangular cross section (hereinafter, referred to as a continuous copper wire, an aluminum wire, or the like that is insulation-coated with enamel resin and has no connection portion).
- a flat conductor wire is a spiral having a substantially hexagonal shape, with a plane formed by the long sides of the rectangular cross section facing each other and a gap d substantially equal to the short side length of the rectangular cross section secured between the opposing planes. It is a turtle shell-shaped coil that is wound four times in a shape.
- the winding bodies 22 configured in this way are arranged in two rows at 6-slot angular intervals.
- the first and second windings 22 are arranged in four rows in the short-side direction of the rectangular cross section with a gap d in each row.
- First and second coil ends 22c and 22d that alternately connect one end and the other end in the length direction between the two straight portions 22a and 22b and the first and second straight portions 22a and 22b.
- the winding has a distributed winding structure.
- the 6-slot angular interval is an interval between the slot centers of the slots 13 on both sides of the six consecutive teeth 12b.
- the first coil end 22c has an inclination set from one end of the first straight line portion 22a in one row and the second straight portion 22b side in the other row, and the lengths of the first and second straight portions 22a and 22b.
- the second straight line of the other row extends outward in the direction to the center portion (first top portion 22e) between the rows of the first and second straight portions 22a and 22b and is set in the opposite direction from the first top portion 22e. It extends to the side of the portion 22b and inward in the longitudinal direction of the first and second straight portions 22a, 22b, and is connected to one end of the second straight portion 22b in the other row.
- the first top portion 22e is formed by protruding the central portion of the first coil end 22c into a U shape or a U shape.
- the crank portion 22e 1 is formed by bending the first top portion 22e into a crank shape. Therefore, the first straight portion 22a and the second linear portion 22b which is connected by a first coil end 22c is displaced by the gap d by the crank portion 22e 1 first and second linear portions 22a, in the direction of arrangement of 22b .
- the second coil end 22d has an inclination set from the other end of the second straight line portion 22b in the other row and is located on the first straight portion 22a side in one row, and the first and second straight portions 22a, One row extends to the center (second top portion 22f) between the rows of the first and second linear portions 22a, 22b outward in the length direction of 22b, and is set in a reverse inclination from the second top portion 22f.
- the first linear portion 22a extends inward in the longitudinal direction of the first and second linear portions 22a, 22b, and is connected to the other end of the first linear portion 22a in one row.
- the second top portion 22f is formed by projecting the central portion of the second coil end 22d into a U shape or a U shape.
- the crank portion 22f 1 is formed by bending the second top portion 22f into a crank shape. Therefore, the first straight portion 22a and the second linear portion 22b which is connected by a second coil end 22d is displaced by the gap d by the crank portion 22f 1 first and second linear portions 22a, in the direction of arrangement of 22b .
- the first and second linear portions 22a and 22b and the first and second coil ends 22c and 22d are each configured by a long side of a rectangular cross section of a flat conductor wire.
- the flat surfaces are opposed to each other, and are arranged at a pitch approximately twice (2d) the short side length in the short side direction of the rectangular cross section of the rectangular conductor wire.
- the first straight portion 22a and the second straight portion 22b connected via the crank portions 22e 1 and 22f 1 of the first top portion 22e and the second top portion 22f are shifted by a gap d in the arrangement direction.
- the winding body 22 includes a winding end 22g extending in the length direction from the other end of the first linear portion 22a located at one end in the arrangement direction of one row, and the other end in the arrangement direction of the other row. And a winding end 22h extending in the length direction from the other end of the second linear portion 22b located at the center.
- FIG. 10 shows a state in which two winding bodies 22 are wound around two consecutive pairs of pairs of slots 13 that straddle six consecutive teeth 12b, and FIG. 11 and FIG. Each of the winding bodies 22 is wound around three consecutive pairs of slots 13 that straddle six consecutive teeth 12b.
- the first coil end 22c extending from the first straight portion 22a of the first layer to the one end side in the axial direction from the slot opening side of one slot 13 has an inclination angle ⁇ Is extended to the other slot 13 side in the circumferential direction, shifted by a distance d outward in the radial direction by the crank portion 22e 1 of the first top portion 22e, and then moved to the other slot 13 side in the circumferential direction at a reverse inclination angle ⁇ . It extends and is connected to the second straight portion 22b of the second layer from the slot opening side of the other slot 13.
- the second coil end 22d extending from the slot opening side of the other slot 13 to the other axial end side from the second linear portion 22b of the second layer is inclined toward the one slot 13 side in the circumferential direction at an inclination angle ⁇ . extends, is crank portion 22f 1 in radially outward by a distance d shift of the second top 22f, then extends one slot 13 side at an inclination angle opposite ⁇ in the circumferential direction, the slot opening side of one of the slots 13 To the first straight portion 22a of the third layer.
- the radial direction corresponds to the slot depth direction.
- the first straight portion 22a of the first layer, the third layer, the fifth layer, and the seventh layer of the one slot 13 and the second layer, the fourth layer, the sixth layer, and the eighth layer of the other slot 13 are obtained.
- the second linear portion 22b of the layer is spirally connected by the first and second coil ends 22c and 22d, respectively.
- the inclined portions from the end portions of the first and second straight portions 22a and 22b to the first and second top portions 22e and 22f are formed in an arc shape when viewed from the axial direction.
- the curvature of the inclined portion is larger as the inclined portion is located on the outer diameter side.
- the first and second straight portions 22a and 22b of the two winding bodies 22 have the long side of the rectangular cross section of the flat conductor wire facing in the circumferential direction. In the radial direction, they are stored alternately in a line. As shown in FIG. 10, the first and second coil ends 22 c and 22 d are located radially outward from the tip of the tooth 12 b of the armature core 11 and radially inward from the bottom of the slot 13. positioned.
- FIG. 13 is a perspective view for explaining an apparatus used for press bending applied to the winding body manufacturing method for a rotary electric machine according to Embodiment 1 of the present invention
- FIGS. FIG. 10 is a process diagram illustrating a method for manufacturing a winding body in the rotating electrical machine according to the first embodiment.
- the apparatus used for the press bending process includes a pair of feed rollers 41 and 42 for feeding the flat conductor wire 40, a gripping jig for gripping and fixing the flat conductor wire 40, And a former for bending the flat conductor wire 40 by pressing it against the base side of the fixed flat conductor wire 40.
- the gripping jig includes first and second chucks 43 and 44 that sandwich two opposing flat surfaces (hereinafter referred to as edgewise surfaces), each of which is composed of a short side of a rectangular cross section of the flat conductor wire 40, and a flat conductor wire.
- the former includes first formers 47a and 47b that are pressed against two opposite edgewise surfaces of the flat conductor wire 40, and second formers 48a and 48b that are pressed against two opposite flatwise surfaces of the flat conductor wire 40, respectively. It is equipped with.
- the flat conductor wire 40 is fed into the gripping jig by the pair of feed rollers 41 and 42 (conductor wire feeding step).
- the first and second chucks 43 and 44 are disposed opposite to the two edgewise surfaces of the flat conductor wire 40, and the third and fourth chucks 45 and 46 are disposed on the two flatwise surfaces of the flat conductor wire 40.
- the first formers 47a and 47b are arranged on the exit side of the gripping jig so that the two edgewise surfaces of the flat conductor wire 40 can be pressed, and the second formers 48a and 48b are arranged on the exit side of the gripping jig.
- the two flatwise surfaces of the flat rectangular conductor wire 40 are arranged so as to be pressed.
- the driving of the feed rollers 41 and 42 is stopped, and the first and second chucks 43 and 44 press and hold the two edgewise surfaces of the flat conductor wire 40 under pressure. Then, the third and fourth chucks 45 and 46 pressurize and hold the two flatwise surfaces of the flat conductor wire 40 (conductor wire fixing step).
- the first former 47a is driven, moves to the base side of the flat conductor wire 40 held and fixed by the holding jig, and presses one edgewise surface of the flat conductor wire 40 (conductor wire bending step). Accordingly, the flat conductor wire 40 is bent by an angle corresponding to the amount of movement of the first former 47a, as shown in FIG. Thereby, the connection part of the 1st linear part 22a and the 1st coil end 22c is bend-molded.
- the driving of the first former 47a is stopped, and the first former 47a returns to the initial position. Therefore, the holding and fixing of the rectangular conductor wire 40 by the first to fourth chucks 43 to 46 is released (conductor wire fixing releasing step).
- the flat conductor wire 40 is unfixed, fed by a set amount, held and fixed by a holding jig, and the second formers 48 a and 48 b are driven, and the flat conductor wire 40 is driven. Press the opposite flatwise surfaces.
- the series of steps is repeated while controlling the feed amount of the flat conductor wire 40 and the movement amount of the second formers 48a and 48b, and the inclined portion on the first straight portion 22a side of the first coil end 22c has an arc shape. Molded.
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by the holding jig, and the first former 47b is driven.
- the first former 47b presses the other edgewise surface of the flat conductor wire 40, and the bent portion on the first straight portion 22a side of the first top portion 22e is bent.
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by a holding jig, and the second former 48a is driven.
- the second former 48a presses one of flatwise face of the rectangular conductor wire 40, the bending portion of the first linear portion 22a side of the crank portion 22e 1 are bent.
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by the holding jig, and the second former 48b is driven.
- the second former 48b presses the other flatwise face of the rectangular conductor wire 40, the bending portion of the second linear portion 22b side of the crank portion 22e 1 are bent.
- the crank portion 22e 1 is bent by these two steps.
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by a holding jig, and the first former 47a is driven. Accordingly, as shown in FIG. 19, the first former 47a presses one edgewise surface of the flat conductor wire 40, and the bent portion on the second straight portion 22b side of the first apex portion 22e is bent. Therefore, a first top portion 22e that protrudes in a U shape or a U shape and has a crank portion 22e 1 is bent.
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by a holding jig, and the second formers 48 a and 48 b are driven, and the rectangular conductor wire 40 is driven. Press the opposite flatwise surfaces. While controlling the feed amount of the flat conductor wire 40 and the movement amount of the second formers 48a and 48b, this series of steps is repeated, and the inclined portion of the first coil end 22c on the second straight portion 22b side becomes an arc shape. Molded.
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by the holding jig, and the first former 47a is driven.
- the first former 47a presses one edgewise surface of the flat conductor wire 40, and the connecting portion between the first coil end 22c and the second linear portion 22b is bent. .
- the conductor wire feeding step, the conductor wire fixing step, the conductor wire bending step, and the conductor wire fixing release step are repeatedly performed, and the first coil end 22c and the second coil end 22d are alternately bent to form a rectangular conductor wire.
- a winding body 22 is produced by winding 40 in a spiral shape for four turns. Then, by slightly increasing the feed amount of each rectangular conductor wire 40 when bending the first coil end 22c and the second coil end 22d, the first linear portion 22a and the second linear portion 22b A winding body 22 is produced in which the interval gradually increases toward one side in the arrangement direction of the linear portions.
- the conductor wire feeding step, the conductor wire fixing step, the conductor wire bending step using the holding bending process, and the conductor wire fixing release step are repeatedly performed. Since the wire 22 is produced, the bending process using a press die can be omitted. Therefore, since the winding body 22 can be manufactured by one apparatus, the manufacturing process can be reduced and the productivity can be increased. Even if the wire rod and dimensions are changed, the spring back of the wire rod is controlled by controlling the movement amount of the first to fourth chucks 43 to 46 and the movement amount of the first and second formers 47a, 47b, 48a and 48b. The amount can be controlled, and the setup is only a change of the software of the apparatus, and the productivity is improved.
- the winding body 22 is produced by bending while feeding a single flat conductor wire 40, the stress acting on the flat conductor wire 40 during bending is reduced, and the flat conductor wire 40 is covered. Occurrence of damage to the insulating film is suppressed. Further, since the press bending process has a smaller stress acting on the flat conductor wire 40 than the bending process using a press die, the occurrence of damage to the insulating film coated on the flat conductor wire 40 can be suppressed. .
- the rectangular conductor wire 40 is released from the fixed state, fed by a set amount, and held and fixed by the holding jig, and then the second formers 48a and 48b are driven. Then, a series of steps of pressing the opposing flatwise surfaces of the flat conductor wire 40 are repeated while controlling the feed amount of the flat conductor wire 40 and the movement amount of the second formers 48a and 48b, and the first coil end 22c
- the inclined part is formed into an arc shape.
- the rectangular conductor wires are driven by the pair of feed rollers 41 and 42 in a state where the second formers 48a and 48b are driven by a set amount and the holding and fixing of the rectangular conductor wires 40 by the first to fourth chucks 43 to 46 are released. While feeding 40, the rectangular conductor wire 40 may be squeezed by the second formers 48a and 48b (squeezing process), and the inclined portions of the first and second coil ends 22c and 22d may be formed into an arc shape.
- FIGS. 22 to 27 are perspective views for explaining a method of assembling the winding assembly in the rotary electric machine according to the first embodiment of the present invention
- FIGS. 28 to 30 are diagrams for the rotary electric machine according to the first embodiment of the present invention. It is a schematic diagram explaining the procedure of incorporating the 48th winding body in the assembly method of a winding assembly.
- the winding bodies 22 are referred to as a winding body 22 1 , a winding body 22 2 , a winding body 22 3 , a winding body 22 47 , and a winding body 22 48 in the assembling order.
- the first and second winding bodies 22 1 and 22 2 are adjacent to each other in the circumferential direction with their axial height positions aligned.
- the second first straight portion 22a of the winding 22 2 inserted between the second linear portion 22b having a first winding 22 1 of the gap d.
- the second winding body 22 2 is moved in the circumferential direction.
- the two winding bodies 22 1 and 22 2 are assembled as shown in FIG.
- the flat conductor wire 40 of the winding body 22 2 enters the gap between the flat conductor wires 40 of the winding body 22 1 and overlaps in the radial direction, thereby increasing the rigidity.
- the third winding body 22 3 is adjacent to the assembly of the winding bodies 22 1 and 22 2 in the circumferential direction with the axial height position aligned.
- the first straight portion 22a of the third winding body 22 3 is inserted between the second straight portions 22b of the winding bodies 22 1 and 22 2 .
- the first linear portion 22a of the third winding body 22 3 is located at a position spaced apart from the first linear portion 22a of the second winding body 22 2 by one slot pitch (angle between one slot)
- the third winding body 22 3 is moved in the circumferential direction.
- the subassembly 24 including the three winding bodies 22 1 , 22 2 , and 22 3 is assembled as shown in FIG.
- the winding body 22 is sequentially aligned in the axial direction and moved in the circumferential direction, and is assembled to the 47th winding body 2247.
- the assembly 23 in which the 47 winding bodies 22 1 to 22 47 are assembled is expanded in diameter, as shown in FIG. 28, the first winding body 22 1 and the 47th winding body 22 47. Is formed in a C-shape that is wider than the circumferential width of the 48th winding body 2248. Then, as shown in FIG. 29, assembling the 48 th winding body 22 48 47 th winding body 22 47 side. Further, as shown in FIG.
- the opening of the C-shaped assembly 23 is closed, the first winding body 22 1 and the 48th winding body 22 48 are assembled, and the annular shape shown in FIG.
- the winding assembly 21 is assembled.
- eight first and second linear portions 22a and 22b arranged in a row in the radial direction are arranged in 48 rows in the circumferential direction at a one-slot pitch.
- FIGS. 31 to 34 are views for explaining a method for mounting the winding assembly in the rotary electric machine according to Embodiment 1 of the present invention to the armature core.
- FIGS. 31 and 32 are diagrams before mounting the winding assembly.
- FIG. 33 shows a state after the winding assembly is mounted, and
- FIG. 34 shows an enlarged state after the winding assembly is mounted.
- the winding assembly 21 is represented by only the first and second linear portions 22a and 22b.
- the 48 iron core blocks 12 are arranged so that each of the teeth 12b is arranged in the radial direction between the adjacent first and second linear portions 22a and 22b of the winding assembly 21. They are arranged at a substantially equiangular pitch in the circumferential direction so as to be located outward.
- the iron core blocks 12 arranged in the circumferential direction are simultaneously moved radially inward. Thereby, each of the teeth 12b of the iron core block 12 is inserted between adjacent rows of the first and second straight portions 22a and 22b, and the side surfaces in the circumferential direction of the adjacent iron core blocks 12 are abutted to each other.
- first and second straight portions 22 a and 22 b are stored side by side aligned in a row in the radial direction with the long side of the rectangular cross section facing the circumferential direction. .
- the first and second straight portions 22a and 22b arranged unevenly in the radial direction can be obtained.
- the teeth 12b of the adjacent iron core blocks 12 are aligned by a movement that narrows. Further, the gap between the first and second linear portions 22a and 22b aligned in the radial direction is reduced and eliminated by the movement of the core block 12 toward the inner diameter side of the core back portion 12a. Thereby, the space factor of the flat conductor wire 40 in the slot 13 can be improved.
- the rectangular conductor wire 40 in the slot 13 and the iron core block 12 are in contact with each other, the heat transfer performance from the winding assembly 21 that becomes a heating element when energized to the armature core 11 can be improved. An increase in temperature of the assembly 21 can be suppressed, and an increase in electrical resistance can be suppressed. Moreover, since the iron core block 12 is inserted so that the space
- crank portions 22e 1 and 22f 1 of the first and second top portions 22e and 22f are configured to shift in the radial direction by a gap d substantially equal to the radial dimension of the first and second linear portions 22a and 22b. Therefore, one winding body 22 is moved to the other one winding body 22 side in the circumferential direction by aligning the height position in the axial direction with the other one winding body 22 without interference. Thus, the assembly of the winding assembly 21 can be improved.
- the tapered teeth 12b of the first and second straight portions 22a, 22b are inserted. Since the coil assembly 21 is inserted from the outer diameter side between the rows and moved inward in the radial direction, the winding assembly 21 is armature with the first and second straight portions 22a and 22b aligned in one row. Mounted on the iron core 11.
- the rotating electric machine 100 using the armature windings 20 connected in this way is supplied with AC power set in the armature windings 20 to form an 8-pole, 48-slot inner rotor type three-phase motor. Operate.
- the winding body 22 is manufactured so that the distance between the first straight portion 22a and the second straight portion 22b gradually increases toward one side in the arrangement direction of the straight portions.
- the winding body 22 may be manufactured so that the distance between the first straight portion 22a and the second straight portion 22b is gradually narrowed toward one side in the arrangement direction of the straight portions.
- the row of the first straight portions 22a and the row of the second straight portions 22b of the winding body 22 are described as being separated by a 6-slot angular interval. The spacing is not limited to 6 slot angular spacing.
- an armature winding with a full-pitch distributed winding structure can be obtained if the interval between the columns is set to a three-slot angular interval. It is done.
- Embodiment 2 the winding body 22 is produced only by pressing bending. However, in the second embodiment, the winding is performed by using both pressing bending and butt bending using a press die. The body 22 is produced.
- FIG. 35 to 40 are process diagrams for explaining a method of manufacturing an intermediate winding body in the rotary electric machine according to the second embodiment of the present invention
- FIG. 41 is a first intermediate in the rotary electric machine according to the second embodiment of the present invention
- 42 is a front view showing a winding body
- FIG. 42 is a front view showing a second intermediate winding body in a rotary electric machine according to Embodiment 2 of the present invention
- FIGS. 43 and 44 are respectively related to Embodiment 2 of the present invention.
- FIG. 45 is a schematic view for explaining a method of forming the top of the second intermediate winding body in the rotating electrical machine.
- FIG. 45 is a plan view showing the first intermediate winding body in the rotating electrical machine according to Embodiment 2 of the present invention.
- 47 is a perspective view for explaining a method of forming the crank portion of the first intermediate winding body in the rotary electric machine according to the second embodiment of the present invention, and FIGS. 48 and 49 respectively illustrate the rotation according to the second embodiment of the present invention.
- FIG. 50 is a front view showing a third intermediate winding body in a rotary electric machine according to Embodiment 2 of the present invention, and FIG. 51 is an embodiment of the present invention. It is a top view explaining the formation method of the circular arc-shaped inclination part of the coil end of the coil
- the rectangular conductor wire 40 is fed into the gripping jig by the pair of feed rollers 41 and 42 (conductor wire feeding step).
- the driving of the feed rollers 41 and 42 is stopped, and the first and second chucks 43 and 44 press and hold the two edgewise surfaces of the flat conductor wire 40 under pressure.
- the first former 47a is driven to move to the base side of the flat conductor wire 40 held and fixed to the holding jig, and presses one edgewise surface of the flat conductor wire 40 (conductor wire bending step). Therefore, as shown in FIG. 35, the flat conductor wire 40 is bent by an angle corresponding to the amount of movement of the first former 47a.
- connection part of the 1st linear part 22a and the 1st coil end 22c is bend-molded.
- driving of the first former 47a is stopped, and the first former 47a returns to the initial position. Therefore, the holding and fixing of the rectangular conductor wire 40 by the first and second chucks 43 and 44 is released (conductor wire fixing releasing step).
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by the holding jig, and the first former 47b is driven.
- the first former 47b presses the other edgewise surface of the flat conductor wire 40, and the bent portion on the first straight portion 22a side of the first top portion 22e is bent.
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by the holding jig, and the first former 47a is driven. Accordingly, as shown in FIG. 37, the first former 47a presses one edgewise surface of the flat conductor wire 40, and the flat conductor wire 40 is folded back.
- the rectangular conductor wire 40 is released from the fixed state, is fed by a set amount, is held and fixed by the holding jig, and the first former 47b is driven.
- the first former 47b presses the other edgewise surface of the flat conductor wire 40, and the bent portion on the second straight portion 22b side of the first apex portion 22e is bent. Therefore, a U-shaped or U-shaped first top portion 22e is formed.
- the flat conductor wire 40 is released from the fixed state and sent by the set amount. Therefore, the flat conductor wire 40 is held and fixed by the holding jig, and the first former 47a is driven. As a result, as shown in FIG. 40, the first former 47a presses one edgewise surface of the flat conductor wire 40, and the connecting portion between the first coil end 22c and the second linear portion 22b is bent. .
- the second coil end part 22d is also molded by the same bending process.
- a first intermediate winding body 37 is produced by winding 40 in a spiral manner for four turns. As shown in FIG. 41, in the first intermediate winding body 37, the crank portions 22e 1 and 22f 1 are not formed on the first and second top portions 22e and 22f.
- the first and second top portions 22e protruding in a U shape or a U shape in the bending process of the first and second coil ends 22c, 22d.
- the bending process of the first and second top portions 22e and 22f may be omitted in the bending process of the first and second coil ends 22c and 22d.
- a second intermediate winding body 38 is produced in which the first and second top portions 22e and 22f protruding in a U shape or a U shape are not formed.
- the bending process of the 1st and 2nd top part 22e, 22f is needed with respect to the 2nd intermediate winding body 38.
- first intermediate winding body 37 manufactured in this way is not formed with the crank portions 22e 1 and 22f 1 at the first and second top portions 22e and 22f, as shown in FIG.
- the second coil ends 22c and 22d are linear.
- the bending process of the crank portions 22e 1 and 22f 1 will be described.
- the interval between the first coil ends 22c is widened, and the first coil end 22c located at one end in the arrangement direction of the first and second linear portions 22a, 22b is placed on the lower mold 55.
- the inclined portion on the first linear portion 22a side of the first coil end 22c is fixed to the lower mold 55 by the holding chuck 56.
- the upper die 57 is pushed down, and the inclined portions on the first top portion 22 e and the second linear portion 22 b side of the first coil end 22 c are sandwiched between the lower die 55.
- the surface of the first coil end 22c in contact with the first top portion 22e and the inclined portion on the second linear portion 22b side is in contact with the surface of the first coil end 22c on the first linear portion 22a side.
- the crank portion 22e 1 is bent and formed on the first top portion 22e of one first coil end 22c.
- interval between the 2nd coil ends 22c is expanded, and the 2nd coil end 22d located in the end of the sequence direction of the 1st and 2nd linear parts 22a and 22b is mounted in the lower metal mold
- the inclined portion of the second coil end 22 d on the second linear portion 22 b side is fixed to the lower mold 55 by the holding chuck 56.
- the upper die 57 is pushed down, and the second apex portion 22 f of the second coil end 22 d and the inclined portion on the first linear portion 22 a side are sandwiched between the lower die 55. Therefore, as shown in FIG. 49, the crank portion 22f 1 is bent along the second apex portion 22f of one of the second coil end 22d.
- crank portions 22e 1 and 22f 1 are sequentially bent at the first and second top portions 22e and 22f of the first and second coil ends 22c and 22d, and the third intermediate winding body 39 shown in FIG. 50 is formed. Is made.
- the inclined portions of the first and second coil ends 22c, 22d are linear, and are arranged at a pitch of 2d in the arrangement direction of the first and second linear portions 22a, 22b. .
- a plate having an arcuate cross section having a thickness d is inserted between the inclined portions of the first coil ends 22c adjacent to each other in the arrangement direction of the first and second linear portions 22a and 22b.
- a plate having an arcuate cross section having a thickness d is inserted between the inclined portions of the second coil ends 22d adjacent to each other in the arrangement direction of the first and second linear portions 22a and 22b.
- the inclined portion is bent into an arc shape, and the winding body 22 is produced as shown in FIG.
- the curvature of the inclined portion gradually increases or decreases toward one side in the arrangement direction of the first and second linear portions 22a and 22b.
- the conductor wire feeding step, the conductor wire fixing step, the conductor wire bending step using the holding bending process and the conductor wire fixing release step are repeatedly performed, and the crank portions 22e 1 and 22f 1 are not formed.
- the first intermediate winding body 37 or the second intermediate winding body 38 in which the first and second top portions 22e and 22f and the crank portions 22e 1 and 22f 1 are not formed is manufactured. Therefore, the number of steps by butt bending using a press die is reduced, the tool changing process and the setting process accompanying the change in wire material and dimensions can be reduced, productivity can be improved, and the flat conductor wire 40 is covered. Occurrence of damage to the insulating film is suppressed.
- crank portions 22e 1 and 22f 1 are bent by a bending process using a press die, the dimensional accuracy of the bent shape of the crank portions 22e 1 and 22f 1 is improved. Therefore, variation in the position of the winding body 22 that occurs when the winding body 22 is assembled in an annular shape is suppressed. As a result, the interference between the core block 12 and the winding body 22 when the core block 12 is inserted into the winding assembly 21 is suppressed, the assembly of the armature is improved, the productivity is improved, and the rectangular conductor wire is increased. Generation
- covered by 40 is suppressed.
- crank portions 22e 1 and 22f 1 are formed by bending each of the first and second coil ends 22c and 22d by a bending process using a press die, the stress acting on the flat conductor wire 40 is reduced. In addition, the occurrence of damage to the insulating coating can be suppressed, and the manufacturing equipment can be downsized.
- the inclined portions of the first and second coil ends 22c and 22d are bent into a circular arc shape using a press die, the dimensional accuracy of the bent shape of the inclined portions is improved. Therefore, variation in the position of the winding body 22 that occurs when the winding body 22 is assembled in an annular shape is suppressed. As a result, the interference between the core block 12 and the winding body 22 when the core block 12 is inserted into the winding assembly 21 is suppressed, the assembly of the armature is improved, the productivity is improved, and the rectangular conductor wire is increased. Generation
- covered by 40 is suppressed.
- the plate Since the plate is interposed between the inclined portions of the first and second coil ends 22c and 22d and pressed by the press mold, the stress acting on each inclined portion is reduced, and the rectangular conductor wire 40 is covered. Occurrence of damage to the insulating coating is suppressed.
- the winding body is formed by winding a rectangular conductor wire in a spiral shape for four turns.
- the number of turns of the rectangular conductor wire is not limited to four times, and is twice. That is all you need.
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Abstract
Description
平角導体線を送りつつ、直線部とコイルエンドとの連結部を設定された角度に曲げ成形しているので、平角導体線に作用する応力が小さくなり、平角導体線に被覆されている絶縁被膜の損傷の発生が抑えられ、絶縁性能を向上できる。
図1はこの発明の実施の形態1に係る回転電機を示す片側断面図、図2はこの発明の実施の形態1に係る回転電機の要部を示す斜視図、図3はこの発明の実施の形態1に係る回転電機に適用される電機子を示す斜視図、図4はこの発明の実施の形態1に係る回転電機に適用される電機子鉄心を構成する鉄心ブロックを示す斜視図、図5はこの発明の実施の形態1に係る回転電機に適用される電機子の電機子巻線を構成する巻線アッセンブリを示す斜視図、図6はこの発明の実施の形態1に係る回転電機における巻線アッセンブリを構成する巻線体を示す斜視図、図7はこの発明の実施の形態1に係る回転電機における巻線アッセンブリを構成する巻線体を示す正面図、図8はこの発明の実施の形態1に係る回転電機における巻線アッセンブリを構成する巻線体を示す側面図、図9はこの発明の実施の形態1に係る回転電機における巻線アッセンブリを構成する巻線体を正面斜め上方から見た斜視図、図10はこの発明の実施の形態1に係る回転電機における2つの巻線体が1つのスロットを共有して電機子鉄心に装着された状態を軸方向一端側から見た要部端面図、図11はこの発明の実施の形態1に係る回転電機における3つの巻線体が電機子鉄心の同一スロット群に周方向に連続して装着された状態を軸方向一端側から見た展開図、図12はこの発明の実施の形態1に係る回転電機における3つの巻線体が電機子鉄心の同一スロット群に周方向に連続して装着された状態を径方向外方から見た展開図である。なお、図11では、便宜上、コイルエンドを直線的に示している。
このように、導体線送り工程、導体線固定工程、導体線曲げ工程および導体線固定解除工程を繰り返し行い、第1コイルエンド22cと第2コイルエンド22dとを交互に曲げ成形し、平角導体線40を螺旋状に4ターン巻回した巻線体22が作製される。そして、第1コイルエンド22cおよび第2コイルエンド22dを曲げ成形する際のそれぞれの平角導体線40の送り量を、少しずつ多くすることにより、第1直線部22aと第2直線部22bとの間隔が直線部の配列方向の一側に向かって漸次広くなる巻線体22が作製される。
ついで、図29に示されるように、48番目の巻線体2248を47番目の巻線体2247側に組み付ける。さらに、図30に示されるように、C字状の組立体23の開口を閉じ、1番目の巻線体221と48番目の巻線体2248とを組み付け、図5に示される円環状の巻線アッセンブリ21が組み立てられる。このように組み立てられた巻線アッセンブリ21では、径方向に1列に並んだ8本の第1および第2直線部22a,22bが、1スロットピッチで周方向に48列配列される。
また、上記実施の形態1では、巻線体22の第1直線部22aの列と第2直線部22bの列とが、6スロット角度間隔離れているものとして説明しているが、列間の間隔は6スロット角度間隔に限定されない。例えば、スロット13が毎極毎相当たり1個の割合で形成されている場合には、列間の間隔を3スロット角度間隔とすれば、全節巻きの分布巻構造の電機子巻線が得られる。
上記実施の形態1では、押さえ曲げ加工のみにより巻線体22を作製しているが、この実施の形態2では、押さえ曲げ加工とプレス金型を用いた突き曲げ加工とを併用して巻線体22を作製している。
図43および図44に示されるように、第2中間巻線体38の第1コイルエンド22cの束を下金型50と上金型51との間に挟み込み、U字状又はコ字状となるように曲げ成形する。同様に、第2中間巻線体38の第2コイルエンド22cの束を下金型50と上金型51との間に挟み込み、U字状又はコ字状となるように曲げ成形する。これにより、第1および第2コイルエンド22c、22dに第1および第2頂部22e,22fが形成された第1中間巻線体37が得られる。
図46に示されるように、第1コイルエンド22c間の間隔を広げ、第1および第2直線部22a,22bの配列方向の一端に位置する第1コイルエンド22cを下金型55に載置する。そして、図47に示されるように、保持チャック56により、第1コイルエンド22cの第1直線部22a側の傾斜部を下金型55に固定する。ついで、上金型57を押し下げて、第1コイルエンド22cの第1頂部22eおよび第2直線部22b側の傾斜部を下金型55との間に挟みつける。下金型55は、第1コイルエンド22cの第1頂部22eおよび第2直線部22b側の傾斜部の接する面が、第1コイルエンド22cの第1直線部22a側の傾斜部の接する面に対して、一段低くなっている。そこで、図48に示されるように、クランク部22e1が1本の第1コイルエンド22cの第1頂部22eに曲げ成形される。
また、上記各実施の形態では、巻線体が平角導体線を螺旋状に4ターン巻回して構成されているものとしているが、平角導体線のターン数は4回に限定されず、2回以上であればよい。
また、上記各実施の形態では、本願を回転電機に適用した場合について説明しているが、本願が適用できる電気機械は、回転電機に限定されず、リニアモータなどの直動機に適用しても、同様の効果を奏する。この場合、巻線体のコイルエンドの傾斜部は円弧形に曲げ成形されず、直線状となっており、第1直線部の列と第2直線部の列との間の間隔は、一定となっている。
Claims (7)
- それぞれ、平角導体線を螺旋状にm回(但し、mは2以上の自然数)巻回して構成され、各列にm本並んで2列に配列された直線部、および列間で該直線部の端部間を連結するコイルエンドを有し、該コイルエンドにより連結された該直線部を該直線部の配列方向に設定された量だけ変位させるクランク部が該コイルエンドの中央に形成されている複数の巻線体を有し、
上記複数の巻線体が、それぞれ、2列に配列された上記直線部の各列を電機子鉄心の連続する複数本のティースの両側に位置するスロットのそれぞれに収納して、該スロットの配列方向に1スロットピッチで配列される電気機械用電機子巻線の製造方法において、
上記平角導体線を該平角導体線の長さ方向に設定された送り量だけ送る導体線送り工程と、把持治具により上記平角導体線を挟持・固定する導体線固定工程と、上記把持治具から延出する上記平角導体線の根元側にフォーマを押し付けて該平角導体線を押さえ曲げする導体線曲げ工程と、上記把持治具による上記平角導体線の把持・固定を解除する導体線固定解除工程と、を繰返して、上記平角導体線を送りつつ、上記直線部と上記コイルエンドとの連結部を設定された角度に曲げ成形して、該平角導体線を螺旋状に巻回することを特徴とする電気機械用電機子巻線の製造方法。 - 上記導体線送り工程では、2列に配列された上記直線部の列間の間隔が該直線部の配列方向の一側に向かって漸次狭くなる又は広くなるように上記平角導体線の送り量が調整されることを特徴とする請求項1記載の電気機械用電機子巻線の製造方法。
- 上記把持治具は、上記平角導体線の四面を把持固定するように構成され、
上記フォーマは、上記平角導体線の一方の相対する2つの外周面を押し付ける第1フォーマと、上記平角導体線の他方の相対する2つの外周面を押し付ける第2フォーマと、を備え、
上記導体線曲げ工程において、上記第1フォーマを用いて上記平角導体線を押さえ曲げて上記直線部と上記コイルエンドとの連結部を曲げ成形し、上記第2フォーマを用いて上記平角導体線を押さえ曲げて上記クランク部を曲げ成形することを特徴とする請求項1又は請求項2記載の電気機械用電機子巻線の製造方法。 - 上記導体線曲げ工程において、上記第2フォーマを用いて上記コイルエンドの上記直線部との連結部と上記クランク部との間を、上記直線部の長さ方向の外方から見て、円弧状に曲げ成形することを特徴とする請求項3記載の電気機械用電機子巻線の製造方法。
- 上記平角導体線を送りつつ、上記直線部と上記コイルエンドとの連結部を設定された角度に曲げ成形して、該平角導体線を螺旋状に巻回し、クランク部未成形の巻線体を作製した後、該クランク部未成形の巻線体の該コイルエンドの1本ずつにプレス金型による曲げ加工を施して、上記クランク部を曲げ成形するクランク部形成工程を有することを特徴とする請求項1又は請求項2記載の電気機械用電機子巻線の製造方法。
- 上記クランク部形成工程に先立って、上記クランク部未成形の巻線体のコイルエンドの束にプレス金型による曲げ加工を施して、該コイルエンドの中央に凸部を曲げ成形する凸部形成工程を有することを特徴とする請求項5記載の電気機械用電機子巻線の製造方法。
- 上記コイルエンドの上記直線部との連結部と上記クランク部との間の部位にプレス金型による曲げ加工を施して、当該部位を円弧形に曲げ成形する円弧形形成工程を有することを特徴とする請求項5又は請求項6記載の電気機械用電機子巻線の製造方法。
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US14/425,425 US9634548B2 (en) | 2012-09-26 | 2013-08-27 | Method for manufacturing an armature winding for an electric machine |
DE112013004716.0T DE112013004716T5 (de) | 2012-09-26 | 2013-08-27 | Verfahren zum Herstellen einer Ankerwicklung für eine elektrische Maschine |
JP2014538296A JP5885176B2 (ja) | 2012-09-26 | 2013-08-27 | 電気機械用電機子巻線の製造方法 |
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JP (1) | JP5885176B2 (ja) |
CN (1) | CN104756377B (ja) |
DE (1) | DE112013004716T5 (ja) |
WO (1) | WO2014050409A1 (ja) |
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WO2017057036A1 (ja) * | 2015-09-30 | 2017-04-06 | アイシン・エィ・ダブリュ株式会社 | コイルの成形方法およびコイルの成形装置 |
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JP2019161771A (ja) * | 2018-03-09 | 2019-09-19 | 福井県 | コイル製造方法及びそれを用いた電気機器 |
JP2022052131A (ja) * | 2020-09-23 | 2022-04-04 | 三菱電機株式会社 | 回転電機 |
DE102015004574B4 (de) | 2014-05-28 | 2024-03-28 | Sew-Eurodrive Gmbh & Co Kg | Verfahren zur Herstellung eines Elektromotors |
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Also Published As
Publication number | Publication date |
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US9634548B2 (en) | 2017-04-25 |
CN104756377B (zh) | 2017-02-22 |
DE112013004716T5 (de) | 2015-06-11 |
US20150229189A1 (en) | 2015-08-13 |
JP5885176B2 (ja) | 2016-03-15 |
CN104756377A (zh) | 2015-07-01 |
JPWO2014050409A1 (ja) | 2016-08-22 |
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