JP2010148226A - Winding method of armature and armature - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a winding method of an armature for improving rotation balance of the armature and reducing vibration at the time of driving a rotating electrical machine. <P>SOLUTION: A winding device 20 includes a first variable former 25 guiding a wire 15 into one slot 14 in a pair of slots 14 becoming winding objects and a second variable former 26 guiding the wire 15 into the other slot 14. An operation amount of the variable formers 25 and 26 is individually controlled and winding modes (shape, posture and the like) of respective coils are suitably controlled. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a method for winding an armature of a rotating electric machine and the armature thereof.

  An armature used as a rotor of a rotating electric machine is formed by, for example, winding a conducting wire around teeth of a plurality of armature cores extending radially outward by a winding winding device shown in Patent Document 1. It is manufactured. The winding winding device holds the armature core in a predetermined position, rotates the flyer relative to the held armature core, and sends the conductor wire from the tip of the flyer by this rotation, that is, the target slot. The conducting wire is wound between them. Then, the winding device winds the conductive wire to each tooth while changing the target tooth sequentially by changing the rotation position of the armature core, and winding the conductive wire to all the teeth of the armature core. To wind all the coils.

Further, as in the winding device of Patent Document 1, a former that contacts a lead wire sent from the tip of the flyer near the winding target slot and guides the lead wire to a suitable position in the slot. Some are equipped with. By conducting the conducting wire with such a former, the space factor of the conducting wire in the slot is improved, and the height of the wound conducting wire from the armature core end face (coil end height) is reduced. .
JP 2004-304952 A

  By the way, on both sides in the axial direction of the armature core, the slots between the teeth are also open on both sides in the axial direction, but when winding the conducting wire, one of the target pair of slots on one side in the axial direction is wound. The opening of the slot is the entrance of the conductor, and the opening of the other slot is the exit of the conductor. The formers provided in the winding device described above are provided on both sides of the armature core in the axial direction, and the winding axes of the conductors (of the flyer) are provided at the inlet and outlet of the pair of slots on each side in the axial direction. It has a symmetrical shape with respect to the rotation axis), and the guiding of the lead wires into the slots on the inlet side and the outlet side is performed similarly. Thus, the coil is configured by winding a conducting wire so as to be orthogonal to the radial direction when the armature core is viewed in the axial direction.

  Therefore, especially in the armature using distributed winding that winds the conductor across multiple teeth, it is necessary to avoid interference between the coil wound later and the coil wound earlier. The coil that is wound later by the former is retracted radially outward and the conductor is wound. As a result, the coil is wound while being wound orthogonally to the radial direction of the armature core, and is sequentially offset and wound outward in the radial direction of the armature core. In other words, the later the coil wound, the center of gravity position of the coil alone is located on the outer side in the radial direction of the armature core. This leads to deterioration of the rotation balance of the armature, and further improvement is expected. It was rare.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to improve the armature rotation balance and reduce the vibration during driving of the armature. And providing an armature.

  In order to solve the above-described problem, the invention according to claim 1 is an armature including a plurality of coils formed by winding a conductive wire around teeth of an armature core extending radially outward. A winding method for guiding the conducting wire in a pair of slots to be wound occasionally with a former, wherein the former guides the conducting wire into one of the pair of slots. 1 variable former and a second variable former for guiding the lead wire into the other slot, and the amount of movement of each variable former is individually controlled to control the winding mode of each coil. The gist.

  In the present invention, a first variable former that guides the lead wire into one slot of the pair of slots that are subject to winding from time to time, and a second variable former that guides the lead wire into the other slot, Are controlled individually so that the winding mode (shape, posture, etc.) of each coil is suitable. As a result, the center of gravity of each coil can be shifted closer to the center of the armature core, and particularly in the armature that employs distributed winding, the coils are overlapped, and the center of gravity of each coil tends to be radially outward. Since this can be effectively shifted toward the center of the armature core, it is possible to improve the rotation balance of the armature. Thereby, it can contribute to the vibration reduction at the time of the drive of a rotary electric machine.

The gist of the invention according to claim 2 is that, in the armature winding method according to claim 1, the conductor is wound simultaneously from both sides sandwiching the axis of the armature core.
In the present invention, in the winding method in which the winding of the conducting wire is performed simultaneously from both sides of the axis of the armature core, the appropriate winding mode of the coil at that time is likely to change (the armature that employs distributed winding) In particular, the effect of controlling the winding mode of the coil by guiding the lead wire of each variable former is great.

  According to a third aspect of the present invention, in the armature winding method according to the first or second aspect, when one of the pair of slots overlaps with a part of the coil wound earlier, The gist is that the conductive wire is wound by retracting the variable former on the side where the overlap occurs from the variable former on the side where the overlap does not occur in the radial direction.

  In the present invention, when one of the pair of slots overlaps with a part of the previously wound coil, the variable former on the side where the overlap occurs is radially outer than the variable former on the side where no overlap occurs. The conductor is wound by being retracted. In other words, on the side where the overlap occurs, considerations such as interference with the coil previously wound are taken, and on the side where the overlap does not occur, the conductive wire is wound as much as possible at the base of the teeth (bottom of the slot), and the coil is inclined. It is composed in the shape. As a result, even if the coils overlap in one slot, the center of gravity position of the single coil can be reliably located closer to the center of the armature core, leading to an improvement in the rotation balance of the armature.

  According to a fourth aspect of the present invention, in the armature winding method according to the third aspect, when the other of the pair of slots overlaps with a part of the previously wound coil, the overlapping is already performed. The gist of the present invention is that the lead wire is wound by increasing the amount of retraction of the variable former on the side where the overlap has occurred to the outside in the radial direction more than the variable former on the side where the occurrence of the wire occurs.

  In the present invention, if an overlap occurs with a part of the previously wound coil in the other of the pair of slots, the variable former on the side where the overlap has occurred is more than the variable former on the side where the overlap has already occurred. The amount of retraction outward in the radial direction of the wire is increased, and the wire is wound. In other words, one side is overlapped with the coil of the previous winding, and the coil is inclined, and the other side also overlaps so that the variable former is operated accordingly, so that the inclined shape is reliably corrected, Consideration such as interference with the coil of the previous winding on the other side is made.

  According to a fifth aspect of the present invention, in the armature winding method according to any one of the first to fourth aspects, the one-turn length of the conducting wire is wound from the short side in each of the coils. The gist is that guidance by the variable former is performed.

In the present invention, the guides by the variable former are wound from the side where the one-turn length of each conductor is short in each coil, so that the conductors in the laminated state during winding are prevented from collapsing.
A sixth aspect of the invention is an armature in which a coil is formed by winding a conductive wire by the armature winding method according to any one of the first to fifth aspects.

  In the present invention, since the rotation balance is improved in the armature in which the conducting wire is wound by the winding method described in the above claims, in the rotating electric machine using this, it is possible to reduce the vibration during the rotation driving. It becomes.

  ADVANTAGE OF THE INVENTION According to this invention, the armature winding method and armature which can improve the rotation balance of an armature and can aim at the vibration reduction at the time of the drive of a rotary electric machine can be provided.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 shows a winding device 20 of this embodiment. The armature 10 manufactured by the winding device 20 of the present embodiment is provided with ten teeth 13 extending radially outward in an armature core 12 fixed to the rotary shaft 11. Ten coils 16 (see FIG. 6) are wound by distributed winding in which the conductive wire 15 is wound across the teeth 13 (between a pair of slots 14 placed one by one).

  The winding device 20 holds the rotating shaft 11 of the armature core 12 by holding means (not shown) so that the direction of the central axis L1 is in the horizontal direction, and the armature core 12 in such a posture. The holding wire 15 is wound around the armature core 12 by the rotation of the flyer 21 in which the rotation axis L2 is set in the horizontal direction and in the direction perpendicular to the axis L1 of the armature core 12. The flyer 21 has a bifurcated shape having a pair of arms 21a. A pulley 22 provided at the tip of one arm 21a is hooked with a conducting wire 15 inserted through the arm 21a. The conducting wire 15 of the tooth 13 (slot 14) is wound and delivered so as to circulate around the radially outer position of the two teeth 13 to be turned. This flyer 21 is rotated by various drive mechanisms (both not shown) using a drive motor as a drive source to rotate the lead wire 15 and the rotation axis L2 of the flyer 21 (between the teeth 13 to be wound). A reciprocating operation along the center line L3) is performed, and the armature core 12 is configured to rotate and advance and retract.

  A former mechanism unit 23 is installed between the pair of arms 21 a of the flyer 21. The former mechanism unit 23 includes a fixed former 24, a first variable former 25, and a second variable former 26.

  When the lead wire 15 is wound around the armature core 12, the fixed former 24 advances to the armature core 12 side together with the former mechanism portion 23, and the front end surfaces (radially outer end surfaces) of the two teeth 13 to be wound. ) With respect to the entire teeth 13 (armature core 12) in the direction of the axis L1, and has a function of guiding the lead wires 15 into the slots 14 outside the two teeth 13. The fixed former 24 is assembled to a drive plate 27 of a first variable former 25, which will be described later, and a biasing mechanism (not shown) is provided so that the operation stroke of the drive plate 27 is always in contact with the armature core 12 at least. Is biased toward the armature core 12 side.

  A pair of first variable formers 25 are provided so as to be arranged on both sides of the armature core 12 in the direction of the axis L1, and the pair is supported by the fixed former 24 (in FIG. 1, only one on the front side). (Illustrated). The first variable former 25 corresponds to one side (counterclockwise side in FIG. 1) of the two teeth 13 to be wound, and the extending direction of the teeth 13 (the rotation axis L2 of the flyer 21). And in a tilting direction). The first variable former 25 is connected to the drive plate 27 via a link 28, and the corresponding teeth are connected via the link 28 based on the reciprocation of the drive plate 27 along the rotation axis L <b> 2 direction of the flyer 21. 13 is advanced and retracted in the extending direction.

  A pair of second variable formers 26 are provided so as to be arranged on both sides of the armature core 12 in the direction of the axis L1, and the pair is supported by the fixed former 24 (in FIG. 1, only one on the front side). (Illustrated). The second variable former 26 corresponds to the other side (the clockwise direction in FIG. 1) of the two teeth 13 to be wound, and extends in the extending direction of the teeth 13 (the rotation axis L2 of the flyer 21). On the other hand, it is supported so as to be able to advance and retreat along an inclination direction opposite to the first variable former 25. The second variable former 26 is connected to a drive plate 29 that operates independently of the drive plate 27 of the first variable former 25 via a link 30, and extends along the rotation axis L <b> 2 of the flyer 21. Based on the reciprocating motion of the drive plate 29, the corresponding tooth 13 is advanced and retracted through the link 30 in the extending direction. The drive plate 29 and the drive plate 27 are operated by respective drive mechanisms (not shown) using a drive motor as a drive source.

  Such first and second variable formers 25 and 26, together with the fixed former 24, guide the conductor 15 into the slot 14 of the armature core 12, and the winding position of the conductor 15 by advancing and retracting during winding. Is controlled so as to control the winding mode (shape, posture, etc.) of the coil 16. In FIG. 1, the axial opening of the slot 14 on the first variable former 25 side is the inlet side of the conducting wire 15, and the axial opening of the slot 14 on the second variable former 26 side is the outlet side of the conducting wire 15. Yes.

  In the winding device 20 of the present embodiment, the flyer 21 and the former mechanism 23 described above are installed on both the left and right sides of the armature core 12 and simultaneously from 180 ° opposite positions of the armature core 12. The lead wire 15 is wound by a double flyer system. Accordingly, the first and second variable formers 25 and 26 are shown on the one side in the axial direction of the armature core 12 as shown in FIG. The winding winding device 20 of this embodiment is provided with a total of eight. Incidentally, in the right and left former mechanism sections 23, the positional relationship in the circumferential direction of the first and second variable formers 25 and 26 with respect to the armature core 12 is the same, but the vertical relationship is reversed.

  A specific winding method of the armature 10 of this embodiment in which the distributed winding of the conductive wire 15 around the ten teeth 13 is performed by the winding winding device 20 having such a configuration will be described. Incidentally, the armature 10 of the present embodiment is formed by winding ten coils 16 (see FIG. 6) configured by winding the conductive wire 15 straddling the two teeth 13, and each flyer 21. In addition, five coils 16 are wound by the former mechanism unit 23. In this case, since it consists of distributed winding, it winds so that a part of coil 16 wound later may overlap with the coil 16 wound previously. Therefore, the first layer, the second layer,.

  As shown in FIG. 2, the armature core 12 (work) is held so that the center line L3 of the two teeth 13 to be wound in the first layer is coaxial with the rotation axis L2 of the flyer 21. At the beginning of winding of the coil 16 of the first layer, the first and second variable formers 25 and 26 are arranged at the most advanced position in the operation stroke, and the center of the armature core 12 (center axis L1). ) And the variable formers 25 and 26 (the distance between the workpiece center and the former) is set to the same distance. As shown in FIG. 7, the first and second variable formers 25 and 26 gradually retreat from the center of the armature core 12 as the winding of the conductive wire 15 advances one turn (with time). In this first layer winding, it finally retracts to the position shown in FIG.

  Therefore, the coil 16 of the first layer wound by the operation of the variable formers 25 and 26 and the guide thereof is from the root portion of the two teeth 13 to be wound, that is, from the bottom of the target slot 14. It is gradually wound outward in the radial direction so as to be orthogonal to the radial direction of the armature core 12. Accordingly, the first layer coil 16 is configured to be parallel to the vertical straight line L4 orthogonal to the center line L3 between the teeth 13 to be wound.

  Next, after winding of the first layer coil 16, the center line L 3 of the two teeth 13 for which the armature core 12 is to be wound in the second layer is coaxial with the rotation axis L 2 of the flyer 21. The position is rotated and held up to the position shown in FIG. The second variable former 26 is disposed at a position slightly retracted from the winding end position of the first layer, while the first variable former 25 is retracted by a predetermined amount larger than the second variable former 26. 3 and is arranged at the position shown in FIG. 3 at the beginning of winding of the coil 16 of the second layer. Then, as shown in FIG. 7, the first variable former 25 has the winding of the conductor 15 stopped at the same position for a predetermined number of turns, and thereafter, as the winding of the conductor 15 advances one turn, the armature core 12 Advance toward the center. On the other hand, the second variable former 26 remains in the same position even when the winding of the conducting wire 15 proceeds.

  Therefore, the second layer coil 16 wound by the operation of the variable formers 25 and 26 and the guide thereof has the first variable former 25 side overlapping the part of the first layer coil 16 as the first layer. The second variable former 26 side is wound around the root portion of the teeth 13 (the bottom portion of the slot 14) while offset radially outward so as to ride on the coil 16 of the eye. Thus, the second layer coil 16 is configured to be inclined with respect to the vertical straight line L4 so that the first layer coil 16 side is expanded.

  In addition, the coil 16 in the second layer is advanced by winding the first variable former 25 toward the center of the armature core 12 as the winding of the conductive wire 15 proceeds. Although it is wound directly around the teeth 13, it rides on the first layer coil 16 on the way. The length of one turn of the conducting wire 15 is gradually increased by riding on the previously wound coil 16. That is, in this embodiment, in consideration of this, the conductor 15 is wound in order from the shortest one turn length, thereby preventing the conductor 15 in the laminated state in the middle of winding from collapsing. Yes. The third and subsequent layers are similarly prevented from collapsing the conductor 15 during winding. Also, in the first layer, since the one-turn length of the conducting wire 15 is wound in order from the short side (from the radial inner side to the outer side), the collapse of the conducting wire 15 during the winding is similarly prevented.

  Next, after winding of the second layer coil 16, the center line L 3 of the two teeth 13 for which the armature core 12 is the third layer winding target is coaxial with the rotation axis L 2 of the flyer 21. The position is rotated and held up to the position shown in FIG. The second variable former 26 is disposed at a position slightly retracted from the winding start position of the second layer, while the first variable former 25 is disposed at the same position as the winding start position of the second layer. At the start of winding of the third layer coil 16, the coil 16 is disposed at the position shown in FIG. 4. Then, as shown in FIG. 7, the first variable former 25 has the winding of the conductor 15 stopped at the same position for a predetermined number of turns, and thereafter, as the winding of the conductor 15 advances one turn, the armature core 12 Advance toward the center. The amount of advance is smaller than that in the first layer. Also in the second variable former 26, the winding of the conducting wire 15 stops at the same position for a predetermined number of turns (in this case, it stops longer than the first variable former 25), and then the winding of the conducting wire 15 advances one turn. With this, the armature core 12 advances slightly toward the center.

  Therefore, the third-layer coil 16 wound by the operation of the variable formers 25 and 26 and the guide thereof has the second variable-former 25 side overlapping the part of the second-layer coil 16 as the two layers. The second variable former 26 side is wound around the root portion of the teeth 13 (the bottom portion of the slot 14) while offset radially outward so as to ride on the coil 16 of the eye. Further, in the third layer coil 16, since the overlapping portion of the second layer on the first variable former 25 side also overlaps with the first layer coil 16, the advancement amount of the first variable former 25 is suppressed. While consideration is given to reducing the load on the coil 16 before the layer, on the second variable former 26 side, the second variable former 26 is advanced near the end of winding, and on the second variable former 26 side. The teeth 13 are wound around the root portion (the bottom of the slot 14). Thus, the third layer coil 16 is configured to be inclined with respect to the vertical straight line L4 so that the second layer coil 16 side is expanded.

  Next, after winding of the third layer coil 16, the center line L 3 of the two teeth 13 for which the armature core 12 is the winding target of the fourth layer is coaxial with the rotation axis L 2 of the flyer 21. The position is rotated and held up to the position shown in FIG. Further, the first and second variable formers 25 and 26 are arranged at positions retracted by a predetermined amount from the winding start position of the third layer. At the start of winding of the coil 16 of the fourth layer, FIG. It arrange | positions in the position shown. Then, as shown in FIG. 7, the first variable former 25 has the winding of the conductor 15 stopped at the same position for a predetermined number of turns, and thereafter, as the winding of the conductor 15 advances one turn, the armature core 12 It advances toward the center direction and advances to the vicinity of the winding start position of the second layer. Also in the second variable former 26, the winding of the conducting wire 15 stops at the same position for a predetermined number of turns, and then advances toward the center of the armature core 12 as the winding of the conducting wire 15 advances by one turn. Then, it advances to the vicinity of the winding start position of the second layer.

  Accordingly, the fourth layer coil 16 wound by the operation of the variable formers 25 and 26 and the guide thereof has the three layers of the first variable former 25 side overlapping with a part of the third layer coil 16. Offset to the outside in the radial direction so as to ride on the eye coil 16, the second variable former 26 side also overlaps with a part of the first layer coil 16 wound by the opposite variable former 25, 26, etc. Therefore, it is wound so as to be offset radially outward so as to ride on the coil 16 of the first layer on the opposite side. That is, in the fourth layer coil 16, the overlapping portion of the third layer on the first variable former 25 side also overlaps with the second layer coil 16, and the opposite first layer on the second variable former 26 side. Since the coils 16 overlap each other, the fourth layer coil 16 is configured to be inclined in a state in which the third layer coil 16 side is slightly expanded but is nearly parallel to the vertical straight line L4.

  Next, after winding of the coil 16 of the fourth layer, the center line L3 of the two teeth 13 in which the armature core 12 is the winding target of the fifth layer is coaxial with the rotation axis L2 of the flyer 21. The position is rotated and held up to the position shown in FIG. The first variable former 25 is disposed at the same position as the winding start position of the fourth layer, while the second variable former 26 is disposed at a position retracted by a predetermined amount from the winding start position of the fourth layer. At the beginning of winding of the coil 16 of the fifth layer, the coil 16 is disposed at the position shown in FIG. Then, as shown in FIG. 7, the first variable former 25 has the winding of the conductor 15 stopped at the same position for a predetermined number of turns, and thereafter, as the winding of the conductor 15 advances one turn, the armature core 12 Advances slightly toward the center. Also in the second variable former 26, the winding of the conducting wire 15 stops at the same position for a predetermined number of turns (in this case, the stopping is shorter than the first variable former 25), and then the winding of the conducting wire 15 is 1 As the turn progresses, the armature core 12 advances toward the center of the armature core 12 and stops again near the end of the winding.

  Accordingly, the fifth-layer coil 16 wound by the operation of the variable formers 25 and 26 and the guide thereof has four layers on the first variable former 25 side that overlaps a part of the fourth-layer coil 16. Offset to the outer side in the radial direction so as to ride on the coil 16 of the eye, and also on the second variable former 26 side, overlaps with a part of the second layer coil 16 wound by the opposite variable former 25, 26, etc. Therefore, it is wound so as to be offset radially outward so as to ride on the coil 16 of the second layer on the opposite side. In other words, in the fifth layer coil 16, the overlapping portion of the fourth layer on the first variable former 25 side also overlaps with the third layer coil 16, and the second layer on the opposite side also on the second variable former 26 side. Since the coil 16 further overlaps with the first-layer coil 16, the fifth-layer coil 16 is slightly inclined with respect to the vertical straight line L4 more than the fourth-layer coil 16. Is done.

  Thus, in the winding device 20 of the present embodiment, the first variable former 25 that guides the conductor 15 to the slot 14 on one side to be wound, and the second that guides the conductor 15 to the slot 14 on the other side. The position and operation amount are individually controlled so that the variable former 26 is made independent and a winding mode suitable for the coil 16 of each layer is obtained. Thus, two layers are formed so that the upper coil 16 is wound around the root portion of the teeth 13 (the bottom of the slot 14) as much as possible while considering interference with the lower coil 16 wound earlier. Since the second and subsequent layers are wound in an inclined manner, the center of gravity of the single coil 16 in the second and subsequent layers is shifted closer to the center of the armature core 12, and the position of the coil 16 is also stabilized. This can contribute to the improvement of the rotation balance and, in turn, the reduction of vibration during the driving of the rotating electrical machine. In addition, the space factor of the conductive wire 15 can be improved and the coil end height can be reduced, and the rotating electrical machine can be reduced in size and output.

Next, characteristic effects of the present embodiment will be described.
(1) In the present embodiment, the first variable former 25 for guiding the lead wire 15 into one slot 14 of the pair of slots 14 to be wound from time to time, and the lead wire into the other slot 14. The amount of movement with the second variable former 26 that performs 15 guidance is individually controlled, and the winding mode (shape, posture, etc.) of each coil 16 is controlled to be suitable. As a result, the center of gravity of each coil 16 can be shifted closer to the center of the armature core 12, and in particular, in the armature 10 of the present embodiment employing the distributed winding, each coil 16 is overlapped. Since the position of the center of gravity tends to be radially outward can be effectively shifted toward the center of the armature core 12, the rotation balance of the armature 10 can be improved. Thereby, if this armature 10 is used for a rotary electric machine, the vibration at the time of rotational drive can be reduced.

  (2) In this embodiment, since the double flyer system in which the conductor 15 is wound simultaneously from both sides of the axis L1 of the armature core 12 is adopted, distributed winding is adopted as in this embodiment. In the armature 10, the appropriate winding mode of the coil 16 at that time is particularly likely to change. Therefore, the effect of controlling the winding mode of the coil 16 by guiding the lead wires 15 of the variable formers 25 and 26 is great.

  (3) In this embodiment, like the winding of the second layer and the third layer, one of the pair of slots 14 to be wound at that time overlaps with a part of the coil 16 wound first. In such a case, the first variable former 25 on the side where the overlap occurs is retracted radially outward from the second variable former 26 on the side where the overlap does not occur, and the conducting wire 15 is wound. That is, on the side where the overlap occurs, consideration is given to interference with the coil 16 wound earlier, and on the side where the overlap does not occur, the conductive wire 15 is wound around the root portion of the teeth 13 (the bottom of the slot 14) as much as possible. The coil 16 is configured to be inclined. Thereby, even in the case of the second layer and the third layer in which the coils 16 overlap with each other in one slot 14, the position of the center of gravity of the coil 16 alone can be reliably located near the center of the armature core 12. This leads to an improvement in the rotation balance of the child 10.

  (4) In the present embodiment, as in the case of winding of the fourth layer, when the overlap with the part of the coil 16 wound earlier also occurs in the other of the pair of slots 14, the overlap has already occurred. The lead wire 15 is wound by increasing the amount of retraction of the second variable former 26 on the side that is newly overlapped in the radial direction outside the first variable former 25 that is on the side. That is, in the second layer and the third layer, one side is overlapped with the coil 16 wound earlier, and the coil 16 has an inclined shape. In the fourth layer, the first layer coil on the other side is also opposite. When the variable formers 25 and 26 are operated in accordance with the overlap at 16, the inclined shape can be reliably corrected, and consideration is given to interference with the coil 16 of the previous winding on the other side. Yes.

  (5) In this embodiment, the guides by the variable formers 25 and 26 are wound from the side where the length of the conducting wire 15 is short in each coil 16, so that the conducting wire 15 in the laminated state during winding is collapsed. Can be prevented in advance.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the operations of the variable formers 25 and 26 in each layer are set as shown in FIG. 7, but the present invention is not limited to this and may be changed as appropriate.

  -In above-mentioned embodiment, although the winding winding apparatus 20 was set as the structure like FIG. 1, it is not limited to this, You may change suitably. Moreover, although applied to the double flyer system, you may apply to a single flyer system.

  In the above embodiment, a specific example of the winding method of the distributed-winding armature 10 in which the armature core 12 having the ten teeth 13 is used and the conductive wire 15 is wound across the two teeth 13 has been shown. However, the present invention is not limited to this. For example, the number of teeth (the number of coils), the number straddling the teeth 13 at the time of distributed winding, and the like may be appropriately changed. Also, the winding method may be applied to, for example, concentrated winding armatures instead of distributed winding.

It is a schematic block diagram which shows the winding winding apparatus in this embodiment. It is explanatory drawing explaining winding of the coil of the 1st layer of an armature. It is explanatory drawing explaining winding of the coil of the 2nd layer of an armature. It is explanatory drawing explaining winding of the coil of the 3rd layer of an armature. It is explanatory drawing explaining winding of the coil of the 4th layer of an armature. It is explanatory drawing explaining winding of the coil of the 5th layer of an armature. It is explanatory drawing for demonstrating operation | movement of the variable former in each layer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Armature, 12 ... Armature core, 13 ... Teeth, 14 ... Slot, 15 ... Conductor, 16 ... Coil, 25 ... 1st variable former, 26 ... 2nd variable former, L1 ... Axis line.

Claims (6)

In an armature configured with a plurality of coils formed by winding a conductor wire around teeth of an armature core extending radially outward, the conductor wire is used as a former in a pair of slots to be wound at each time of the armature core. The winding method of guiding
The former includes a first variable former that guides a conductive wire into one of the pair of slots, and a second variable former that guides a conductive wire into the other slot, and each of these variable formers. The armature winding method is characterized in that the winding amount of each coil is controlled by individually controlling the operation amount of the armature. The armature winding method according to claim 1,
A method of winding an armature, wherein the conductor is wound simultaneously from both sides of an axis of the armature core. In the armature winding method according to claim 1 or 2,
When one of the pair of slots overlaps with a part of the coil wound earlier, the variable former on the side where the overlap occurs is radially outer than the variable former on the side where no overlap occurs. The winding method of the armature, wherein the conducting wire is wound after being retracted. In the armature winding method according to claim 3,
In the other of the pair of slots, if there is an overlap with a part of the previously wound coil, the variable former on the side where the overlap has occurred is more than the variable former on the side where the overlap has already occurred. The armature winding method is characterized in that the lead wire is wound by increasing a retracting amount to the radially outer side of the wire. In the armature winding method according to any one of claims 1 to 4,
The armature winding method according to claim 1, wherein each of the coils is guided by the variable former so that one turn length of the conducting wire is wound from a short side.   An armature, wherein a coil is formed by winding a conducting wire by the armature winding method according to any one of claims 1 to 5.

Images