WO2022070440A1 - Coil insertion device and coil insertion method - Google Patents

Coil insertion device and coil insertion method Download PDF

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Publication number
WO2022070440A1
WO2022070440A1 PCT/JP2020/047812 JP2020047812W WO2022070440A1 WO 2022070440 A1 WO2022070440 A1 WO 2022070440A1 JP 2020047812 W JP2020047812 W JP 2020047812W WO 2022070440 A1 WO2022070440 A1 WO 2022070440A1
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WO
WIPO (PCT)
Prior art keywords
coil
axial direction
connecting member
stator core
blades
Prior art date
Application number
PCT/JP2020/047812
Other languages
French (fr)
Japanese (ja)
Inventor
歩 橋本
Original Assignee
日本電産株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電産株式会社 filed Critical 日本電産株式会社
Priority to CN202080105697.2A priority Critical patent/CN116195175A/en
Publication of WO2022070440A1 publication Critical patent/WO2022070440A1/en

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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
    • H02K15/06—Embedding prefabricated windings in machines
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the present invention relates to a coil insertion device and a coil insertion method.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2000-125521
  • Patent Document 1 describes a plurality of movable blades arranged along the circumferential direction corresponding to the internal teeth of a cylindrical stator core, and blades capable of penetrating into the stator core.
  • a coil insertion device with a stripper that presses the held coil into a slot formed between the internal teeth of the stator core.
  • a first movable blade that moves the movable blade integrally with the stripper and a second movable blade that is alternately arranged with respect to the first movable blade and can move relative to the first movable blade.
  • the first and second movable blades are advanced until the coil is inserted into a predetermined position in the stator core, and then the first movable blade is further advanced and at the same time, the second movable blade is movable. It is characterized by providing a driving means for retracting the blade.
  • An object of the present invention is to provide a coil insertion device and a coil insertion method that shorten the coil end.
  • the coil insertion device from the first aspect of the present invention is a coil in which a coil in which a coil wire is wound in an annular shape is inserted into a plurality of slots penetrating in the axial direction of the stator core from one side in the axial direction to the other side.
  • It comprises a plurality of blades arranged in the axial direction of the stator core to hold the coil, and a connecting member that connects the other sides of the plurality of blades in the axial direction and moves from one side in the axial direction to the other side. ..
  • the coil insertion method from the second aspect of the present invention is a coil in which a coil in which a coil wire is wound in an annular shape is inserted into a plurality of slots penetrating in the axial direction of the stator core from one side in the axial direction toward the other side.
  • the insertion method includes a step of holding the coil on a plurality of blades arranged in the circumferential direction of the stator core and extending in the axial direction of the stator core on the radial inside of the stator core and the radial outside of the coil moving mechanism, and a plurality of blades.
  • the coil is pivoted by the process of moving the connecting member connecting the other side in the axial direction from one side in the axial direction toward the other side and the coil moving mechanism arranged inside the stator core in the radial direction and moving in the axial direction. It includes a step of moving from one side in the direction toward the other side and a step of removing a plurality of blades from the other side in the axial direction.
  • the present invention can provide a coil insertion device and a coil insertion method for shortening the coil end.
  • FIG. 1 is a schematic cross-sectional view perpendicular to the axial direction of the stator.
  • FIG. 2 is a schematic diagram of the coil insertion device and the method of the embodiment.
  • FIG. 3 is a schematic diagram of the coil insertion device and the method of the embodiment.
  • FIG. 4 is a schematic diagram of the coil insertion device and the method of the embodiment.
  • FIG. 5 is a schematic diagram of the coil insertion device and the method of the embodiment.
  • FIG. 6 is a flowchart of the coil insertion method of the embodiment.
  • FIG. 7 is a schematic diagram of a coil insertion device and a method of a modified example.
  • FIG. 8 is a schematic diagram of a coil insertion device and a method of a modified example.
  • the direction in which the central axis of the stator 1 extends is referred to as the "axial direction".
  • One side along the axial direction is the upper (front) side, and the other side is the lower (rear) side.
  • the vertical (front-back) direction is used to specify the positional relationship, and does not limit the actual direction. That is, the downward direction does not necessarily mean the direction of gravity.
  • the axial direction is not particularly limited, and includes a vertical direction, a horizontal direction, a direction intersecting these directions, and the like.
  • the direction orthogonal to the central axis of the stator 1 is defined as the "diameter direction”.
  • One side along the radial direction is the inside, and the other side is the outside.
  • the direction along the arc centered on the central axis of the stator 1 is defined as the "circumferential direction”.
  • the stator 1 is a component of a motor and interacts with a rotor (not shown) to generate rotational torque.
  • the stator 1 of the present embodiment is a distributed winding in which the coil 10 is wound across several slots 21.
  • the stator 1 includes a coil 10, a stator core 20, a wedge 30, and an insulating paper 40.
  • the stator core 20 is formed in a hollow cylindrical shape.
  • the stator core 20 is formed by stacking thin silicon steel plates.
  • a plurality of teeth 23 are radially formed on the stator core 20.
  • a slot 21 is formed between the teeth 23.
  • the teeth 23 extend radially through the slot 21.
  • a slot open 22 which is a radial opening is formed in the slot 21.
  • the stator core 20 of the present embodiment is an integrated stator core.
  • the coil 10 is formed by winding a coil wire in an annular shape.
  • the coil 10 has two coil side portions and a coil crossing portion.
  • the two coil sides are housed in the slot 21.
  • the slot 21 in which one coil side portion is housed and the slot 21 in which the other coil side portion is housed are different.
  • the slot 21 in which one coil side portion is housed and the slot 21 in which the other coil side portion is housed may be arranged in the circumferential direction via another slot and are adjacent to each other. May be (not shown).
  • the wedge 30 is arranged between the coil 10 arranged in the slot 21 and the slot open 22.
  • the wedge 30 closes the slot open 22.
  • the wedge 30 insulates the stator core 20 and the coil 10.
  • the axial length of the wedge 30 is larger than the axial length of the slot 21.
  • the wedge 30 of this embodiment has a U-shape in the axial direction.
  • a circumferential portion 31 extending in the circumferential direction and two radial portions 32 extending radially outward from both end portions of the circumferential portion 31 are included.
  • the circumferential portion 31 and the radial portion 32 may be composed of one member, or different members may be connected to each other.
  • the insulating paper 40 covers the coil 10 inserted into the slot 21.
  • the insulating paper 40 is arranged along the teeth that partition the space excluding the radial inside in the slot 21.
  • the insulating paper 40 of this embodiment has a U-shape.
  • a circumferential portion 41 extending in the circumferential direction and two radial portions 42 extending radially inward from both ends of the circumferential portion 41 are included.
  • the opening of the insulating paper 40 and the opening of the wedge 30 are in opposite directions.
  • the coil insertion device 100 will be described with reference to FIGS. 1 to 5.
  • 2 to 5 show a step of inserting a coil into the slot 21 using the coil inserting device 100, and the steps are carried out in the order of FIGS. 2 to 5.
  • the coil insertion device 100 has a coil 10 in which a coil wire is wound in an annular shape in a plurality of slots 21 penetrating in the axial direction of the stator core 20 from one side in the axial direction to the other side ( In FIGS. 2 to 5, the insertion is made from the right side to the left side).
  • the coil insertion device 100 inserts the coil 10 from each slot open 22 so as to straddle the two slots 21 of the stator core 20.
  • the coil insertion device 100 includes a plurality of blades 110, a stripper 120 as a coil moving mechanism, a connecting member 130, a connecting member moving mechanism 140, and a blade holder 150. ..
  • the plurality of blades 110 are arranged radially inside the stator core 20 and radially outside the stripper 120 in the circumferential direction of the stator core 20. Specifically, the plurality of blades 110 are arranged on the same circumference corresponding to the teeth 23. The blade 110 extends in the axial direction of the stator core and holds the coil 10.
  • the blade 110 of this embodiment is composed of two blades 111 and 112.
  • the blades 111 and 112 are arranged via a plurality of teeth 23.
  • the blades 111 and 112 guide the coil 10 hooked on the stripper 120, which will be described later, to the slot 21 along the axial and radial directions.
  • the blades 111 and 112 are rod-shaped members extending in the axial direction.
  • the blades 111 and 112 are movable blades that move in the axial direction.
  • the stripper 120 is a coil moving mechanism for moving the coil 10.
  • the stripper 120 is moved in the axial direction by a stripper drive member (not shown).
  • the stripper 120 is arranged radially inside the stator core 20 and moves in the axial direction.
  • the stripper 120 comes into contact with the coil 10. Therefore, the stripper 120 moves the coil 10 in the axial direction.
  • a part of the coil 10 is inserted into the slot 21 from the slot open 22 while the coil 10 is axially moved inside the stator core 20 by the stripper 120.
  • the stripper 120 hooks the inside of the coil 10 in the radial direction and pulls up the coil 10 along the blade 110.
  • the stripper 120 of the present embodiment moves to the other side in the axial direction together with the blade 110.
  • the stripper 120 includes a shaft 121 and a large diameter portion 122.
  • the shaft 121 and the large diameter portion 122 may be composed of one member, or different members may be connected to each other.
  • the stripper 120 is made of a hollow material.
  • the shaft 121 extends in the axial direction. Specifically, the shaft 121 extends from one side in the axial direction to the other side.
  • the large diameter portion 122 is provided at the other end in the axial direction of the shaft 121.
  • the radial inside of the annular coil 10 is hooked on the large diameter portion 122.
  • the large diameter portion 122 has a diameter larger than the diameter of the shaft 121.
  • the central axis of the shaft 121 and the large diameter portion 122 is the same.
  • the diameter of the large diameter portion 122 is the distance between the blades 111 and 112.
  • the large diameter portion 122 of the present embodiment is hemispherical.
  • a protrusion passing through the blade 110 may be formed on the large diameter portion 122.
  • the protrusions are fin-shaped and protrude outward in the radial direction.
  • the connecting member 130 connects the other sides of the plurality of blades 110 in the axial direction, and moves from one side in the axial direction toward the other side.
  • the connecting member 130 of the present embodiment connects the portions of the plurality of blades 110 on the other side of the center in the axial direction.
  • the connecting member 130 connects the ends of the plurality of blades 110 on the other side in the axial direction.
  • the connecting member 130 connects the portions of the plurality of blades 110 having the same axial position to each other.
  • the connecting member 130 connects the end edges of the plurality of blades 110 on the other side in the axial direction.
  • the connecting member 130 keeps the distance between the plurality of blades 110. Therefore, the connecting member 130 stabilizes the axial movement of the blade 110.
  • the connecting member 130 is arranged inside the stator core 20 in the radial direction. Specifically, the connecting member 130 is arranged radially inside at least a portion of the stator core 20. The connecting member 130 may overlap at the portion of the slot open 22.
  • the end face on one side in the axial direction of the connecting member 130 is larger than the end face on the other side in the axial direction of the connecting member 130.
  • the connecting member 130 includes a protruding portion 131 and a large diameter portion 132.
  • the protrusion 131 extends from the end of the large diameter portion 132 on the other side in the axial direction toward the other side in the axial direction.
  • the central axis of the protruding portion 131 and the large diameter portion 132 are the same.
  • the large diameter portion 132 in the axial direction connects the other sides of the plurality of blades 111 and 112 in the axial direction.
  • the diameter of the large diameter portion 132 is the distance between the plurality of blades 111 and 112.
  • the large diameter portion 132 of the present embodiment is hemispherical.
  • the connecting member 130 and the plurality of blades 111 and 112 may be composed of one member, or different members may be connected to each other. Further, the connecting member 130 may be made of a hollow material or a solid material.
  • the connecting member moving mechanism 140 moves the connecting member 130 from one side in the axial direction toward the other side, and moves the plurality of blades 110 to positions on the other side in the axial direction with respect to the stripper 120.
  • the connecting member moving mechanism 140 allows the plurality of blades 110 to be removed from the other side in the axial direction.
  • the connecting member moving mechanism 140 contacts the connecting member 130 and moves the connecting member 130. As a result, the connecting member 130 can be easily moved.
  • the end face on one side in the axial direction of the connecting member moving mechanism 140 and the end face on the other side in the axial direction of the connecting member 130 are in contact with each other.
  • the connecting member moving mechanism 140 of this embodiment is arranged inside the stator core 20 in the radial direction.
  • the connecting member moving mechanism 140 can be moved axially inside the stator core 20 together with the stripper 120. Therefore, it is possible to simplify the connecting member moving mechanism 140 and reduce the size of the coil inserting device 100.
  • the connecting member moving mechanism 140 is arranged inside at least a part of the stator core 20 in the radial direction.
  • the connecting member moving mechanism 140 may overlap at the portion of the slot open 22.
  • the connecting member moving mechanism 140 is arranged on one side in the axial direction of the connecting member 130. Thereby, the plurality of blades 110 can be easily removed from the other side in the axial direction. Moreover, the coil end can be further shortened.
  • the connecting member moving mechanism 140 has a protruding portion 141 that protrudes from the end surface of the stripper 120 on the other side in the axial direction toward the other side in the axial direction. 2 to 5 show only the protruding portion 141 as the connecting member moving mechanism 140.
  • the protrusion 141 of the present embodiment is attached to the stripper 120.
  • the protrusion 141 of this embodiment is a shaft-shaped member.
  • the diameter of the protrusion 141 is smaller than the diameter of the stripper 120. Therefore, the protrusion 141 is configured to be storable in the stripper 120.
  • the protrusion 141 can be housed in the stripper 120 as shown in FIGS. 2 and 3 and not housed in the stripper 120 as shown in FIGS. 4 and 5. Will be done.
  • the connecting member moving mechanism 140 further has a driving member (not shown) that moves the protruding portion 141 in the axial direction.
  • the drive member moves the protrusion 141 from one side in the axial direction to the other side in the axial direction from the state shown in FIGS. 2 and 3 to the state shown in FIGS. 4 and 5.
  • the drive member is, for example, a cylinder.
  • the axial length L141 in which the protruding portion 141 protrudes from the end face on the other side in the axial direction of the stripper is the length L110 of a portion on one side in the axial direction with respect to the connecting member 130 of the plurality of blades 110. Longer than.
  • the protrusion 141 projects from the end face on the other side in the axial direction of the stripper 120, and the connecting member 130 is moved to the other side in the axial direction, whereby the plurality of blades 110 are moved to the positions on the other side in the axial direction with respect to the stripper 120. Can be done. Therefore, the plurality of blades 110 can be easily removed from the other side in the axial direction.
  • the axial length L141 in which the protruding portion 141 protrudes from the end face on the other side in the axial direction of the stripper is longer than the axial length L110 of the plurality of blades 110.
  • the blade holder 150 is arranged radially inside the stator core 20 and on the stripper 120.
  • the blade holder 150 holds one side of the plurality of blades 110 in the axial direction.
  • the blade holder 150 can hold one side of the plurality of blades 110 in the axial direction.
  • the blade holder 150 comes into contact with a plurality of blades 110.
  • the blade holder 150 may hold a plurality of blades 110 via another member. Further, the blade holder 150 may or may not be connected to a plurality of blades 110.
  • the blade holder 150 of the present embodiment is not connected to the plurality of blades 110, but holds the plurality of blades 110. Therefore, the ends of the plurality of blades 110 on the other side in the axial direction are fixed to the connecting member 130, and the ends of the plurality of blades 110 on the one side in the axial direction are held without being fixed to the blade holder 150.
  • the blade holder 150 is arranged on a portion of the stripper 120 other than the other side in the axial direction.
  • the blade holder 150 of the present embodiment is attached to one side of the large diameter portion 122 of the stripper 120 in the axial direction, and in FIGS. 2 to 5, the blade holder 150 is located on one side of the large diameter portion 122 of the stripper 120 in the axial direction. Attached to the end face.
  • the end face on the other side in the axial direction of the blade holder 150 is larger than the end face on the one side in the axial direction of the stripper 120.
  • the blade holder 150 holds the blade 110 at both ends in the circumferential direction of the large diameter portion 122.
  • the blade holder 150 arranged in the stripper 120 moves in the axial direction as the stripper 120 moves in the axial direction by the stripper drive member (not shown). With the axial movement of the blade holder 150, the plurality of blades 110 held by the blade holder 150 move in the axial direction. As the plurality of blades 110 move in the axial direction, the connecting member 130 moves in the axial direction.
  • the coil insertion method of the present embodiment is a method of inserting a coil 10 using the coil insertion device 100 described above.
  • the coil insertion device 100 is installed in the stator core 20 (step S1).
  • step S1 as shown in FIG. 2, the coil 10 and the coil insertion device 100 are arranged on one side in the axial direction of the stator core 20.
  • the coils 10 are arranged in the circumferential direction of the stator core 20 on the radial inside of the stator core 20 and on the radial outside of the stripper 120, and hold the coils 10 on a plurality of blades 110 extending in the axial direction of the stator core 20.
  • the coil 10 is arranged so as to be held between the blades 111 and 112. Further, the stripper 120 is arranged at the center of the plurality of blades 111 and 112 in the radial direction and on one side in the axial direction. A plurality of blades 111 and 112 are held by the blade holder 150.
  • step S1 a part of the protruding portion 141 of the connecting member moving mechanism 140 is held in a state of protruding from the end face on the other side in the axial direction of the stripper 120.
  • the stripper 120 arranged radially inside the stator core 20 is moved from one side in the axial direction to the other side (step S2).
  • the stripper 120 is moved by the stripper drive member (not shown). Since the inside of the coil 10 is in a state of being hooked on the stripper 120, the coil 10 moves from one side in the axial direction to the other side as the stripper 120 moves.
  • the blade holder 150 arranged in the stripper 120 moves from one side in the axial direction to the other side.
  • a plurality of blades 110 held by the blade holder 150 move from one side in the axial direction to the other side.
  • the connecting member 130 moves from one side in the axial direction to the other side. In this way, the connecting member 130 connecting the other sides in the axial direction of the plurality of blades 110 is moved from one side in the axial direction toward the other side.
  • the protrusion length of the stripper 120 from the end face on the other side in the axial direction in the protrusion 141 of the connecting member moving mechanism 140 moves the stripper 120 in the same state as in step S1.
  • the coil 10 is moved from one side in the axial direction to the other side by the stripper 120 which is arranged inside the stator core 20 in the radial direction and moves in the axial direction.
  • the stripper 120 By moving the stripper 120, the coil 10 is inserted into the slot 21 of the stator core 20 as shown in FIG. 3 (step S3).
  • step S4 the connecting member moving mechanism 140 arranged on one side in the axial direction of the connecting member 130 directs a plurality of blades 110 from one side in the axial direction to the other side to a position on the other side in the axial direction with respect to the stripper 120. And move it.
  • the protruding portion 141 of the connecting member moving mechanism 140 extends from the state of FIG. 3 to the state of FIG. 4 from the end face on the other side in the axial direction of the stripper 120 toward the other side in the axial direction. Since the protruding portion 141 of the connecting member moving mechanism 140 comes into contact with the connecting member 130, the connecting member 130 is pushed to the other side in the axial direction. As a result, the connecting member 130 moves to the other side in the axial direction with respect to the stripper 120. Therefore, the plurality of blades 110 connected to the connecting member 130 also move to the other side in the axial direction with respect to the stripper 120.
  • the length L141 in the axial direction in which the protrusion 141 protrudes from the end face on the other side in the axial direction of the stripper 120 is longer than the length of the portion on one side in the axial direction with respect to the connecting member 130 of the plurality of blades 110.
  • a plurality of blades 110 can be pushed out in the traveling direction immediately before the completion of insertion of the coil 10. In this way, the connecting member 130 and the plurality of blades 110 are removed from the stator core 20 without retracting the coil 10.
  • the stripper 120 is moved from one side in the axial direction to the other side (step S5).
  • the coil 10 is moved to a predetermined position in the slot 21 by the stripper 120 with the plurality of blades 110 removed.
  • step S6 remove the stripper 120.
  • the stripper 120 is removed from the stator core 20 by moving the stripper 120 toward one side in the axial direction.
  • step S6 the coil 10 can be inserted into a plurality of slots 21 penetrating in the axial direction of the stator core 20.
  • the stator 1 shown in FIG. 1 can be manufactured.
  • the wedge 30 is not shown in FIGS. 2 to 5, a step of inserting the wedge 30 into the stator core 20 at the same time as inserting the coil 10 is provided.
  • the insulating paper 40 is not shown in FIGS. 2 to 5, a step of covering the coil 10 inserted in the slot 21 with the insulating paper 40 is further provided. In this coating step, the insulating paper 40 may be arranged in advance in the slot 21 and the coil 10 may be inserted into the slot 21. Further, the coil 10 coated with the insulating paper 40 may be inserted into the slot 21.
  • the connecting member 130 connecting the ends of the plurality of blades 110 on the other side in the axial direction is moved to the other side in the axial direction.
  • a plurality of blades can be removed from the other side in the axial direction immediately before the insertion of the coil 10 into the slot 21 is completed (when the coil 10 advances to a position where it should be detached from the blade 110). .. Therefore, after removing the plurality of blades 110 from the other side in the axial direction, the coil 10 is moved to one side in the axial direction by the stripper 120 as shown in FIG. 5, and the insertion of the coil 10 into the slot 21 is completed. Can be done. In this way, since it is possible to suppress the retreat of the plurality of blades 110 to one side in the axial direction, it is possible to suppress the retreat of the coil 10 to one side in the axial direction. Therefore, the coil end can be shortened.
  • the coil insertion device 100 and the coil insertion method of the present embodiment can suppress the blade 110 from retracting to the other side in the axial direction, and are therefore suitably used for manufacturing the stator 1 having a high space factor of the coil 10. Further, since it is possible to prevent the coil 10 from being pressed against the stripper 120 due to the retracting of the coil 10, it is possible to suppress damage to the coil 10. Further, the load on the blade 110 can be reduced.
  • the connecting member 130 having the protruding portion 131 and the large diameter portion 132 has been described as an example, but the coil inserting device of the present invention connects the other sides of the plurality of blades 110 in the axial direction. If so, it is not limited to this.
  • the coil insertion device 101 of this modification as shown in FIGS. 7 and 8, the protruding portion 131 is omitted. Note that FIG. 7 corresponds to the figure in which the stator core 20 is omitted in FIG. 2, and FIG. 8 corresponds to FIG.
  • the connecting member 130 connects the ends of the plurality of blades 110 on the other side in the axial direction, but is not limited thereto. In this modification, the connecting member 130 connects the ends of the plurality of blades 110 that do not include the other end edges in the axial direction.
  • the connecting member 130 connects the portions of the plurality of blades 110 having the same axial position to each other, but is not limited thereto. In this modification, the connecting member 130 connects the portions of the plurality of blades 110 whose axial positions are different from each other.
  • the connecting member 130 connects the two blades 111 and 112, but the number of the blades 110 to be connected is not particularly limited as long as it is two or more.
  • the connecting member moving mechanism 140 is arranged on one side in the axial direction of the connecting member 130, but is not limited thereto. In this modification, the connecting member moving mechanism 140 is arranged on the other side in the axial direction of the connecting member 130. In this case, the connecting member moving mechanism 140 comes into contact with one side of the connecting member 130 in the axial direction.
  • the coil insertion device 100 includes the connecting member moving mechanism 140, but the connecting member moving mechanism 140 may be omitted.
  • the plurality of blades 110 are removed from the other side in the axial direction by manually moving the connecting member 130 to one side in the axial direction.
  • the two slots 21 into which the coils are inserted are one slot 21 sandwiching four slots 21 and another slot 21, but are not limited thereto.
  • Stator 10 Coil 20: Stator core 21: Slot 22: Slot open 23: Teeth 30: Wedge 40: Insulating paper 100, 101: Coil insertion device 110, 111, 112: Blade 120: Stripper 121: Shaft 122, 132: Large diameter portion 130: Connecting member 131, 141: Protruding portion 140: Connecting member moving mechanism 150: Blade holder

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Provided are a coil insertion device and a coil insertion method which shorten a coil end. This coil insertion device (100) inserts a coil (10) into a plurality of slots (21) from one side toward the the other side in the axial direction, said coil (10) being formed by winding a coil wire in a ring shape, said plurality of slots (21) passing through in the axial direction of a stator core (20). The coil insertion device (100) comprises: a coil moving mechanism disposed inside the stator core (20) in the radial direction and moving in the axial direction to move the coil (10); a plurality of blades (110) disposed in the circumferential direction of the stator core (20) inside the stator core (20) in the radial direction and outside the coil moving mechanism in the radial direction, extending in the axial direction of the stator core (20), and holding the coil (10); and a connecting member (130) connecting the other sides of the plurality of blades (110) in the axial direction and moving from one side toward the other side in the axial direction.

Description

コイル挿入装置及びコイル挿入方法Coil insertion device and coil insertion method
　本発明は、コイル挿入装置及びコイル挿入方法に関する。 The present invention relates to a coil insertion device and a coil insertion method.
　従来、ステータコアのスロットに、コイル線が環状に巻き付けられたコイルを挿入するコイル挿入装置及びコイル挿入方法が知られている。例えば、特開２０００－１２５５２１号公報（特許文献１）には、円筒状のステータコアの内歯に対応して円周方向に沿って複数配置される可動ブレードと、ステータコア内に侵入可能でブレードに保持させたコイルを押圧してステータコアの内歯相互間に形成されるスロットに挿入させるストリッパとを有するコイル挿入装置が開示されている。特許文献１のコイル挿入装置では、可動ブレ
ードを、ストリッパと一体となって移動する第１の可動ブレードと、この第１の可動ブレードに対し交互に配置されて相対移動可能な第２の可動ブレードとから構成するとともに、第１，第２の可動ブレードを、コイルがステータコア内の所定の位置まで挿入されるまで前進させた後、第１の可動ブレードをさらに前進させると同時に、第２の可動ブレードを後退させる駆動手段を設けたことを特徴とする。 Conventionally, a coil insertion device and a coil insertion method for inserting a coil in which a coil wire is wound in an annular shape into a slot of a stator core are known. For example, Japanese Patent Application Laid-Open No. 2000-125521 (Patent Document 1) describes a plurality of movable blades arranged along the circumferential direction corresponding to the internal teeth of a cylindrical stator core, and blades capable of penetrating into the stator core. Disclosed is a coil insertion device with a stripper that presses the held coil into a slot formed between the internal teeth of the stator core. In the coil insertion device of Patent Document 1, a first movable blade that moves the movable blade integrally with the stripper and a second movable blade that is alternately arranged with respect to the first movable blade and can move relative to the first movable blade. The first and second movable blades are advanced until the coil is inserted into a predetermined position in the stator core, and then the first movable blade is further advanced and at the same time, the second movable blade is movable. It is characterized by providing a driving means for retracting the blade.
特開２０００－１２５５２１号公報Japanese Unexamined Patent Publication No. 2000-125521
　しかしながら、上記特許文献１のコイル挿入装置では、スロットにコイルを挿入した後に、第２の可動ブレードの後退に伴って、コイルも後退してしまう。このため、コイルの後退する量を考慮して、コイルを余分に前進させる必要がある。その結果、ステータコアから突出するコイルの端部が、長くなってしまう場合がある。 However, in the coil insertion device of Patent Document 1, after inserting the coil into the slot, the coil also retracts as the second movable blade retracts. Therefore, it is necessary to advance the coil extra in consideration of the amount of retreat of the coil. As a result, the end of the coil protruding from the stator core may become long.
　本発明は、コイルエンドを短縮する、コイル挿入装置及びコイル挿入方法を提供することを目的とする。 An object of the present invention is to provide a coil insertion device and a coil insertion method that shorten the coil end.
　本発明の第１の観点からのコイル挿入装置は、ステータコアの軸方向に貫通する複数のスロットに、コイル線が環状に巻き付けられたコイルを、軸方向一側から他側に向けて挿入するコイル挿入装置であって、ステータコアの径方向内側に配置され、軸方向に移動し、コイルを移動させるコイル移動機構と、ステータコアの径方向内側、かつコイル移動機構の径方向外側に、ステータコアの周方向に配置され、ステータコアの軸方向に延び、コイルを保持する複数のブレードと、複数のブレードの軸方向他側を連結し、軸方向一側から他側に向けて移動する連結部材と、を備える。 The coil insertion device from the first aspect of the present invention is a coil in which a coil in which a coil wire is wound in an annular shape is inserted into a plurality of slots penetrating in the axial direction of the stator core from one side in the axial direction to the other side. An insertion device, a coil moving mechanism that is arranged inside the stator core in the radial direction and moves in the axial direction to move the coil, and a circumferential direction of the stator core that is inside the radial direction of the stator core and outside the radial direction of the coil moving mechanism. It comprises a plurality of blades arranged in the axial direction of the stator core to hold the coil, and a connecting member that connects the other sides of the plurality of blades in the axial direction and moves from one side in the axial direction to the other side. ..
　本発明の第２の観点からのコイル挿入方法は、ステータコアの軸方向に貫通する複数のスロットに、コイル線が環状に巻き付けられたコイルを、軸方向一側から他側に向けて挿入するコイル挿入方法であって、ステータコアの径方向内側、かつコイル移動機構の径方向外側に、ステータコアの周方向に配置され、ステータコアの軸方向に延びる複数のブレードにコイルを保持する工程と、複数のブレードの軸方向他側を連結する連結部材を、軸方向一側から他側に向けて移動する工程と、ステータコアの径方向内側に配置され、軸方向に移動するコイル移動機構により、コイルを、軸方向一側から他側に向けて移動させる工程と、複数のブレードを軸方向他側から取り外す工程と、を備える。 The coil insertion method from the second aspect of the present invention is a coil in which a coil in which a coil wire is wound in an annular shape is inserted into a plurality of slots penetrating in the axial direction of the stator core from one side in the axial direction toward the other side. The insertion method includes a step of holding the coil on a plurality of blades arranged in the circumferential direction of the stator core and extending in the axial direction of the stator core on the radial inside of the stator core and the radial outside of the coil moving mechanism, and a plurality of blades. The coil is pivoted by the process of moving the connecting member connecting the other side in the axial direction from one side in the axial direction toward the other side and the coil moving mechanism arranged inside the stator core in the radial direction and moving in the axial direction. It includes a step of moving from one side in the direction toward the other side and a step of removing a plurality of blades from the other side in the axial direction.
　本発明は、コイルエンドを短縮するコイル挿入装置及びコイル挿入方法を提供することができる。 The present invention can provide a coil insertion device and a coil insertion method for shortening the coil end.
図１は、ステータの軸方向に垂直な断面の模式図である。FIG. 1 is a schematic cross-sectional view perpendicular to the axial direction of the stator. 図２は、実施形態のコイル挿入装置及び方法の模式図である。FIG. 2 is a schematic diagram of the coil insertion device and the method of the embodiment. 図３は、実施形態のコイル挿入装置及び方法の模式図である。FIG. 3 is a schematic diagram of the coil insertion device and the method of the embodiment. 図４は、実施形態のコイル挿入装置及び方法の模式図である。FIG. 4 is a schematic diagram of the coil insertion device and the method of the embodiment. 図５は、実施形態のコイル挿入装置及び方法の模式図である。FIG. 5 is a schematic diagram of the coil insertion device and the method of the embodiment. 図６は、実施形態のコイル挿入方法のフローチャートである。FIG. 6 is a flowchart of the coil insertion method of the embodiment. 図７は、変形例のコイル挿入装置及び方法の模式図である。FIG. 7 is a schematic diagram of a coil insertion device and a method of a modified example. 図８は、変形例のコイル挿入装置及び方法の模式図である。FIG. 8 is a schematic diagram of a coil insertion device and a method of a modified example.
　以下、図面に基づいて本発明の実施形態を説明する。なお、以下の図面において同一または相当する部分には同一の参照符号を付し、その説明は繰り返さない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding parts are designated by the same reference numerals, and the description thereof will not be repeated.
　また、以下の説明において、ステータ１の中心軸が延びる方向、すなわちスロットの貫通方向を「軸方向」とする。軸方向に沿った一側を上（前）側、他側を下（後）側とする。上下（前後）方向は、位置関係を特定するために用いるためであって、実際の方向を限定するものではない。すなわち、下方向は重力方向を必ずしも意味するものではない。軸方向は、特に限定されず、鉛直方向、水平方向、これらの方向に交差する方向などを含む。 Further, in the following description, the direction in which the central axis of the stator 1 extends, that is, the penetration direction of the slot is referred to as the "axial direction". One side along the axial direction is the upper (front) side, and the other side is the lower (rear) side. The vertical (front-back) direction is used to specify the positional relationship, and does not limit the actual direction. That is, the downward direction does not necessarily mean the direction of gravity. The axial direction is not particularly limited, and includes a vertical direction, a horizontal direction, a direction intersecting these directions, and the like.
　また、ステータ１の中心軸に直交する方向を「径方向」とする。径方向に沿った一側を内側、他側を外側とする。さらに、ステータ１の中心軸を中心とする円弧に沿う方向を「周方向」とする。 Further, the direction orthogonal to the central axis of the stator 1 is defined as the "diameter direction". One side along the radial direction is the inside, and the other side is the outside. Further, the direction along the arc centered on the central axis of the stator 1 is defined as the "circumferential direction".
　また以下の説明で用いる図面は、特徴部分を強調する目的で、便宜上特徴となる部分を拡大して示す場合がある。よって、各構成要素の寸法及び比率は実際のものと必ずしも同じではない。また、同様の目的で、特徴とならない部分を省略して図示する場合がある。 In addition, the drawings used in the following explanation may be shown by enlarging the characteristic part for the purpose of emphasizing the characteristic part. Therefore, the dimensions and ratio of each component are not necessarily the same as the actual ones. Further, for the same purpose, a part that is not a feature may be omitted in the illustration.
　（ステータ）
　図１に示すように、ステータ１は、モータの構成部品であって、図示しないロータと相互作用して回転トルクを発生させる。本実施形態のステータ１は、いくつかのスロット２１を跨いでコイル１０を巻きつける分布巻きとされる。ステータ１は、コイル１０と、ステータコア２０と、ウエッジ３０と、絶縁紙４０と、を備える。 (Stator)
As shown in FIG. 1, the stator 1 is a component of a motor and interacts with a rotor (not shown) to generate rotational torque. The stator 1 of the present embodiment is a distributed winding in which the coil 10 is wound across several slots 21. The stator 1 includes a coil 10, a stator core 20, a wedge 30, and an insulating paper 40.
　＜ステータコア＞
　ステータコア２０は、中空の円柱形状に形成される。ステータコア２０は、薄い珪素鋼鈑を重ねて形成される。ステータコア２０には、複数のティース２３が放射状に形成される。ティース２３同士の間には、スロット２１が形成される。ティース２３は、スロット２１を介して径方向に延びる。スロット２１には、径方向開口部であるスロットオープン２２が形成される。本実施形態のステータコア２０は、一体型のステータコアである。 <Stator core>
The stator core 20 is formed in a hollow cylindrical shape. The stator core 20 is formed by stacking thin silicon steel plates. A plurality of teeth 23 are radially formed on the stator core 20. A slot 21 is formed between the teeth 23. The teeth 23 extend radially through the slot 21. A slot open 22 which is a radial opening is formed in the slot 21. The stator core 20 of the present embodiment is an integrated stator core.
　＜コイル＞
　コイル１０は、コイル線が環状に巻きけられてなる。コイル１０は、二つのコイル辺部と、コイル渡り部と、を有する。二つのコイル辺部は、スロット２１内に収容される。具体的には、一方のコイル辺部が収納されるスロット２１と、他方のコイル辺部が収納されるスロット２１とは、異なる。一方のコイル辺部が収納されるスロット２１と、他方のコイル辺部が収納されるスロット２１とは、図１に示すように別のスロットを介して周方向に配置されてもよく、隣り合っていてもよい（図示せず）。 <Coil>
The coil 10 is formed by winding a coil wire in an annular shape. The coil 10 has two coil side portions and a coil crossing portion. The two coil sides are housed in the slot 21. Specifically, the slot 21 in which one coil side portion is housed and the slot 21 in which the other coil side portion is housed are different. As shown in FIG. 1, the slot 21 in which one coil side portion is housed and the slot 21 in which the other coil side portion is housed may be arranged in the circumferential direction via another slot and are adjacent to each other. May be (not shown).
　＜ウエッジ＞
　ウエッジ３０は、スロット２１内に配置されたコイル１０と、スロットオープン２２との間に配置される。ウエッジ３０は、スロットオープン２２を塞ぐ。ウエッジ３０は、ステータコア２０とコイル１０とを絶縁する。ウエッジ３０の軸方向長さは、スロット２１の軸方向長さよりも大きい。 <Wedge>
The wedge 30 is arranged between the coil 10 arranged in the slot 21 and the slot open 22. The wedge 30 closes the slot open 22. The wedge 30 insulates the stator core 20 and the coil 10. The axial length of the wedge 30 is larger than the axial length of the slot 21.
　本実施形態のウエッジ３０は、軸方向視においてＵ字形状である。詳細には、図１に示すように、周方向に延びる周方向部３１と、周方向部３１の両端部から径方向外側に向けて延びる２つの径方向部３２と、を含む。周方向部３１及び径方向部３２は、１つの部材で構成されてもよく、互いに異なる部材が接続されてもよい。 The wedge 30 of this embodiment has a U-shape in the axial direction. In detail, as shown in FIG. 1, a circumferential portion 31 extending in the circumferential direction and two radial portions 32 extending radially outward from both end portions of the circumferential portion 31 are included. The circumferential portion 31 and the radial portion 32 may be composed of one member, or different members may be connected to each other.
　＜絶縁紙＞
　絶縁紙４０は、スロット２１に挿入されるコイル１０を被覆する。絶縁紙４０は、スロット２１において径方向内側を除く空間を区画するティースに沿って配置される。本実施形態の絶縁紙４０は、Ｕ字形状である。詳細には、周方向に延びる周方向部４１と、周方向部４１の両端部から径方向内側に向けて延びる２つの径方向部４２と、を含む。図１では、絶縁紙４０の開口とウエッジ３０の開口とは、互いに反対の方向である。 <Insulated paper>
The insulating paper 40 covers the coil 10 inserted into the slot 21. The insulating paper 40 is arranged along the teeth that partition the space excluding the radial inside in the slot 21. The insulating paper 40 of this embodiment has a U-shape. In detail, a circumferential portion 41 extending in the circumferential direction and two radial portions 42 extending radially inward from both ends of the circumferential portion 41 are included. In FIG. 1, the opening of the insulating paper 40 and the opening of the wedge 30 are in opposite directions.
　（コイル挿入装置）
　図１～図５を参照して、コイル挿入装置１００について説明する。なお、図２～図５は、コイル挿入装置１００を用いてスロット２１にコイルを挿入する工程を示し、図２～図５の順に実施される。図１～図５に示すように、コイル挿入装置１００は、ステータコア２０の軸方向に貫通する複数のスロット２１に、コイル線が環状に巻き付けられたコイル１０を、軸方向一側から他側（図２～図５では、右側から左側）に向けて挿入する。詳細には、コイル挿入装置１００は、ステータコア２０の２つのスロット２１を跨ぐようにそれぞれのスロットオープン２２からコイル１０を挿入する。 (Coil insertion device)
The coil insertion device 100 will be described with reference to FIGS. 1 to 5. 2 to 5 show a step of inserting a coil into the slot 21 using the coil inserting device 100, and the steps are carried out in the order of FIGS. 2 to 5. As shown in FIGS. 1 to 5, the coil insertion device 100 has a coil 10 in which a coil wire is wound in an annular shape in a plurality of slots 21 penetrating in the axial direction of the stator core 20 from one side in the axial direction to the other side ( In FIGS. 2 to 5, the insertion is made from the right side to the left side). Specifically, the coil insertion device 100 inserts the coil 10 from each slot open 22 so as to straddle the two slots 21 of the stator core 20.
　図２～図５に示すように、コイル挿入装置１００は、複数のブレード１１０と、コイル移動機構としてのストリッパ１２０と、連結部材１３０と、連結部材移動機構１４０と、ブレードホルダ１５０と、を備える。 As shown in FIGS. 2 to 5, the coil insertion device 100 includes a plurality of blades 110, a stripper 120 as a coil moving mechanism, a connecting member 130, a connecting member moving mechanism 140, and a blade holder 150. ..
　＜ブレード＞
　複数のブレード１１０は、ステータコア２０の径方向内側、かつストリッパ１２０の径方向外側に、ステータコア２０の周方向に配置される。詳細には、複数のブレード１１０は、ティース２３に対応して、同一円周上に配設される。ブレード１１０は、ステータコアの軸方向に延び、コイル１０を保持する。 <Blade>
The plurality of blades 110 are arranged radially inside the stator core 20 and radially outside the stripper 120 in the circumferential direction of the stator core 20. Specifically, the plurality of blades 110 are arranged on the same circumference corresponding to the teeth 23. The blade 110 extends in the axial direction of the stator core and holds the coil 10.
　本実施形態のブレード１１０は、２つのブレード１１１、１１２で構成される。ブレード１１１、１１２は、複数のティース２３を介して配置される。ブレード１１１、１１２は、後述するストリッパ１２０に引っ掛けられたコイル１０を軸方向および径方向に沿ってスロット２１まで導く。ブレード１１１、１１２は、軸方向に延びる棒状の部材である。ブレード１１１、１１２は、軸方向に移動する可動ブレードである。 The blade 110 of this embodiment is composed of two blades 111 and 112. The blades 111 and 112 are arranged via a plurality of teeth 23. The blades 111 and 112 guide the coil 10 hooked on the stripper 120, which will be described later, to the slot 21 along the axial and radial directions. The blades 111 and 112 are rod-shaped members extending in the axial direction. The blades 111 and 112 are movable blades that move in the axial direction.
　＜ストリッパ＞
　ストリッパ１２０は、コイル１０を移動させるコイル移動機構である。なお、ストリッパ１２０は、ストリッパ駆動部材（図示せず）により軸方向に移動する。ストリッパ１２０は、ステータコア２０の径方向内側に配置され、軸方向に移動する。ストリッパ１２０は、コイル１０に当接する。このため、ストリッパ１２０は、コイル１０を軸方向に移動させる。ストリッパ１２０により、コイル１０がステータコア２０の径方向内側を軸方向に移動しつつ、コイル１０の一部がスロットオープン２２からスロット２１内部に挿入される。具体的には、ストリッパ１２０は、コイル１０の径方向の内側を引っ掛けて、ブレード１１０に沿ってコイル１０を引き上げる。本実施形態のストリッパ１２０は、ブレード１１０とともに軸方向他側に移動する。 <Stripper>
The stripper 120 is a coil moving mechanism for moving the coil 10. The stripper 120 is moved in the axial direction by a stripper drive member (not shown). The stripper 120 is arranged radially inside the stator core 20 and moves in the axial direction. The stripper 120 comes into contact with the coil 10. Therefore, the stripper 120 moves the coil 10 in the axial direction. A part of the coil 10 is inserted into the slot 21 from the slot open 22 while the coil 10 is axially moved inside the stator core 20 by the stripper 120. Specifically, the stripper 120 hooks the inside of the coil 10 in the radial direction and pulls up the coil 10 along the blade 110. The stripper 120 of the present embodiment moves to the other side in the axial direction together with the blade 110.
　ストリッパ１２０は、シャフト１２１と、大径部１２２と、を含む。シャフト１２１及び大径部１２２は、１つの部材で構成されてもよく、互いに異なる部材が接続されてもよい。ここでは、ストリッパ１２０は、中空材で構成される。 The stripper 120 includes a shaft 121 and a large diameter portion 122. The shaft 121 and the large diameter portion 122 may be composed of one member, or different members may be connected to each other. Here, the stripper 120 is made of a hollow material.
　シャフト１２１は、軸方向に延びる。詳細には、シャフト１２１は、軸方向一側から他側まで延びる。 The shaft 121 extends in the axial direction. Specifically, the shaft 121 extends from one side in the axial direction to the other side.
　大径部１２２は、シャフト１２１の軸方向他端部に設けられる。大径部１２２には、環状のコイル１０の径方向の内側が引っ掛けられる。大径部１２２は、シャフト１２１の径よりも大きな径を有する。シャフト１２１と大径部１２２との中心軸は、同じである。大径部１２２の径は、ブレード１１１、１１２間の距離である。本実施形態の大径部１２２は、半球状である。大径部１２２には、ブレード１１０を通る突起が形成されてもよい。突起は、径方向外側に向けて突出するフィン状である。 The large diameter portion 122 is provided at the other end in the axial direction of the shaft 121. The radial inside of the annular coil 10 is hooked on the large diameter portion 122. The large diameter portion 122 has a diameter larger than the diameter of the shaft 121. The central axis of the shaft 121 and the large diameter portion 122 is the same. The diameter of the large diameter portion 122 is the distance between the blades 111 and 112. The large diameter portion 122 of the present embodiment is hemispherical. A protrusion passing through the blade 110 may be formed on the large diameter portion 122. The protrusions are fin-shaped and protrude outward in the radial direction.
　＜連結部材＞
　連結部材１３０は、複数のブレード１１０の軸方向他側を連結し、軸方向一側から他側に向けて移動する。本実施形態の連結部材１３０は、複数のブレード１１０の軸方向の中央よりも他側の部分を連結する。図２～図５では、連結部材１３０は、複数のブレード１１０の軸方向他側の端部を連結する。また、連結部材１３０は、複数のブレード１１０において軸方向位置が互いに同じ部分を連結する。ここでは、連結部材１３０は、複数のブレード１１０の軸方向他側の端縁を連結する。 <Connecting member>
The connecting member 130 connects the other sides of the plurality of blades 110 in the axial direction, and moves from one side in the axial direction toward the other side. The connecting member 130 of the present embodiment connects the portions of the plurality of blades 110 on the other side of the center in the axial direction. In FIGS. 2 to 5, the connecting member 130 connects the ends of the plurality of blades 110 on the other side in the axial direction. Further, the connecting member 130 connects the portions of the plurality of blades 110 having the same axial position to each other. Here, the connecting member 130 connects the end edges of the plurality of blades 110 on the other side in the axial direction.
　連結部材１３０は、複数のブレード１１０の間隔を保持する。このため、連結部材１３０により、ブレード１１０の軸方向の移動が安定する。 The connecting member 130 keeps the distance between the plurality of blades 110. Therefore, the connecting member 130 stabilizes the axial movement of the blade 110.
　連結部材１３０は、ステータコア２０の径方向内側に配置される。詳細には、連結部材１３０は、ステータコア２０の少なくとも一部の径方向内側に配置される。連結部材１３０は、スロットオープン２２の部分で重なってもよい。 The connecting member 130 is arranged inside the stator core 20 in the radial direction. Specifically, the connecting member 130 is arranged radially inside at least a portion of the stator core 20. The connecting member 130 may overlap at the portion of the slot open 22.
　連結部材１３０の軸方向一側の端面は、連結部材１３０の軸方向他側の端面よりも大きい。連結部材１３０は、突出部１３１と、大径部１３２と、を含む。突出部１３１は、大径部１３２の軸方向他側の端部から、軸方向他側に向けて延びる。突出部１３１と大径部１３２との中心軸は、同じである。 The end face on one side in the axial direction of the connecting member 130 is larger than the end face on the other side in the axial direction of the connecting member 130. The connecting member 130 includes a protruding portion 131 and a large diameter portion 132. The protrusion 131 extends from the end of the large diameter portion 132 on the other side in the axial direction toward the other side in the axial direction. The central axis of the protruding portion 131 and the large diameter portion 132 are the same.
　大径部１３２の軸方向一側は、複数のブレード１１１、１１２の軸方向他側を連結する。大径部１３２の径は、複数のブレード１１１、１１２間の距離である。本実施形態の大径部１３２は、半球状である。 One side of the large diameter portion 132 in the axial direction connects the other sides of the plurality of blades 111 and 112 in the axial direction. The diameter of the large diameter portion 132 is the distance between the plurality of blades 111 and 112. The large diameter portion 132 of the present embodiment is hemispherical.
　連結部材１３０及び複数のブレード１１１、１１２は、１つの部材で構成されてもよく、互いに異なる部材が接続されてもよい。また、連結部材１３０は、中空材で構成されてもよく、中実材で構成されてもよい。 The connecting member 130 and the plurality of blades 111 and 112 may be composed of one member, or different members may be connected to each other. Further, the connecting member 130 may be made of a hollow material or a solid material.
　＜連結部材移動機構＞
　連結部材移動機構１４０は、連結部材１３０を軸方向一側から他側に向けて移動させ、複数のブレード１１０をストリッパ１２０よりも軸方向他側の位置まで移動させる。連結部材移動機構１４０により、複数のブレード１１０を軸方向他側から取り外すことができる。 <Connecting member movement mechanism>
The connecting member moving mechanism 140 moves the connecting member 130 from one side in the axial direction toward the other side, and moves the plurality of blades 110 to positions on the other side in the axial direction with respect to the stripper 120. The connecting member moving mechanism 140 allows the plurality of blades 110 to be removed from the other side in the axial direction.
　連結部材移動機構１４０は、連結部材１３０に接触して連結部材１３０を移動させる。これにより、連結部材１３０を容易に移動させることができる。ここでは、連結部材移動機構１４０の軸方向一側の端面と、連結部材１３０の軸方向他側の端面とが、互いに接する。 The connecting member moving mechanism 140 contacts the connecting member 130 and moves the connecting member 130. As a result, the connecting member 130 can be easily moved. Here, the end face on one side in the axial direction of the connecting member moving mechanism 140 and the end face on the other side in the axial direction of the connecting member 130 are in contact with each other.
　本実施形態の連結部材移動機構１４０は、ステータコア２０の径方向内側に配置される。連結部材移動機構１４０を、ストリッパ１２０とともに、ステータコア２０の径方向内側で軸方向に移動させることが可能である。このため、連結部材移動機構１４０の簡素化及びコイル挿入装置１００の小型化を図ることができる。 The connecting member moving mechanism 140 of this embodiment is arranged inside the stator core 20 in the radial direction. The connecting member moving mechanism 140 can be moved axially inside the stator core 20 together with the stripper 120. Therefore, it is possible to simplify the connecting member moving mechanism 140 and reduce the size of the coil inserting device 100.
　詳細には、連結部材移動機構１４０は、ステータコア２０の少なくとも一部の径方向内側に配置される。連結部材移動機構１４０は、スロットオープン２２の部分で重なってもよい。 Specifically, the connecting member moving mechanism 140 is arranged inside at least a part of the stator core 20 in the radial direction. The connecting member moving mechanism 140 may overlap at the portion of the slot open 22.
　連結部材移動機構１４０は、連結部材１３０の軸方向一側に配置される。これにより、複数のブレード１１０を軸方向他側から容易に取り外すことができる。またコイルエンドをより短縮できる。 The connecting member moving mechanism 140 is arranged on one side in the axial direction of the connecting member 130. Thereby, the plurality of blades 110 can be easily removed from the other side in the axial direction. Moreover, the coil end can be further shortened.
　具体的には、連結部材移動機構１４０は、ストリッパ１２０の軸方向他側の端面から軸方向他側に向けて突出する突出部１４１を有する。図２～図５には、連結部材移動機構１４０として、突出部１４１のみを示す。本実施形態の突出部１４１は、ストリッパ１２０に取り付けられる。 Specifically, the connecting member moving mechanism 140 has a protruding portion 141 that protrudes from the end surface of the stripper 120 on the other side in the axial direction toward the other side in the axial direction. 2 to 5 show only the protruding portion 141 as the connecting member moving mechanism 140. The protrusion 141 of the present embodiment is attached to the stripper 120.
　本実施形態の突出部１４１は、シャフト状の部材である。突出部１４１の径は、ストリッパ１２０の径よりも小さい。このため、突出部１４１は、ストリッパ１２０に収納可能に構成される。詳細には、突出部１４１は、図２及び図３に示すように、ストリッパ１２０に収納されることと、図４及び図５に示すように、ストリッパ１２０に収容されないことと、が可能に構成される。 The protrusion 141 of this embodiment is a shaft-shaped member. The diameter of the protrusion 141 is smaller than the diameter of the stripper 120. Therefore, the protrusion 141 is configured to be storable in the stripper 120. In particular, the protrusion 141 can be housed in the stripper 120 as shown in FIGS. 2 and 3 and not housed in the stripper 120 as shown in FIGS. 4 and 5. Will be done.
　連結部材移動機構１４０は、突出部１４１を軸方向に移動させる駆動部材（図示せず）をさらに有する。駆動部材は、図２及び図３に示す状態から、図４及び図５に示す状態まで、突出部１４１を軸方向一側から他側に移動させる。駆動部材は、例えば、シリンダなどである。 The connecting member moving mechanism 140 further has a driving member (not shown) that moves the protruding portion 141 in the axial direction. The drive member moves the protrusion 141 from one side in the axial direction to the other side in the axial direction from the state shown in FIGS. 2 and 3 to the state shown in FIGS. 4 and 5. The drive member is, for example, a cylinder.
　図５に示すように、突出部１４１がストリッパの軸方向他側の端面から突出する軸方向の長さＬ１４１は、複数のブレード１１０の連結部材１３０よりも軸方向一側の部分の長さＬ１１０よりも長い。突出部１４１がストリッパ１２０の軸方向他側の端面から突出して、連結部材１３０を軸方向他側に移動させることにより、複数のブレード１１０をストリッパ１２０よりも軸方向他側の位置まで移動させることができる。このため、複数のブレード１１０を軸方向他側から容易に取り外すことができる。なお、本実施形態では、突出部１４１がストリッパの軸方向他側の端面から突出する軸方向の長さＬ１４１は、複数のブレード１１０の軸方向の長さＬ１１０よりも長い。 As shown in FIG. 5, the axial length L141 in which the protruding portion 141 protrudes from the end face on the other side in the axial direction of the stripper is the length L110 of a portion on one side in the axial direction with respect to the connecting member 130 of the plurality of blades 110. Longer than. The protrusion 141 projects from the end face on the other side in the axial direction of the stripper 120, and the connecting member 130 is moved to the other side in the axial direction, whereby the plurality of blades 110 are moved to the positions on the other side in the axial direction with respect to the stripper 120. Can be done. Therefore, the plurality of blades 110 can be easily removed from the other side in the axial direction. In the present embodiment, the axial length L141 in which the protruding portion 141 protrudes from the end face on the other side in the axial direction of the stripper is longer than the axial length L110 of the plurality of blades 110.
　＜ブレードホルダ＞
　ブレードホルダ１５０は、ステータコア２０の径方向内側、かつストリッパ１２０に配置される。ブレードホルダ１５０は、複数のブレード１１０の軸方向一側を保持する。ブレードホルダ１５０により、複数のブレード１１０の軸方向一側を保持することができる。 <Blade holder>
The blade holder 150 is arranged radially inside the stator core 20 and on the stripper 120. The blade holder 150 holds one side of the plurality of blades 110 in the axial direction. The blade holder 150 can hold one side of the plurality of blades 110 in the axial direction.
　ブレードホルダ１５０は、複数のブレード１１０と接触する。なお、ブレードホルダ１５０は、別部材を介して複数のブレード１１０を保持してもよい。また、ブレードホルダ１５０は、複数のブレード１１０と連結されてもよく、連結されていなくてもよい。本実施形態のブレードホルダ１５０は、複数のブレード１１０と連結されていないが、複数のブレード１１０を保持する。このため、複数のブレード１１０の軸方向他側の端部は、連結部材１３０に固定され、複数のブレード１１０の軸方向一側の端部は、ブレードホルダ１５０に固定されずに保持される。 The blade holder 150 comes into contact with a plurality of blades 110. The blade holder 150 may hold a plurality of blades 110 via another member. Further, the blade holder 150 may or may not be connected to a plurality of blades 110. The blade holder 150 of the present embodiment is not connected to the plurality of blades 110, but holds the plurality of blades 110. Therefore, the ends of the plurality of blades 110 on the other side in the axial direction are fixed to the connecting member 130, and the ends of the plurality of blades 110 on the one side in the axial direction are held without being fixed to the blade holder 150.
　ブレードホルダ１５０は、ストリッパ１２０の軸方向他側以外の部分に配置される。本実施形態のブレードホルダ１５０は、ストリッパ１２０の大径部１２２の軸方向一側に取り付けられ、図２～図５では、ブレードホルダ１５０は、ストリッパ１２０の大径部１２２の軸方向一側の端面に取り付けられる。 The blade holder 150 is arranged on a portion of the stripper 120 other than the other side in the axial direction. The blade holder 150 of the present embodiment is attached to one side of the large diameter portion 122 of the stripper 120 in the axial direction, and in FIGS. 2 to 5, the blade holder 150 is located on one side of the large diameter portion 122 of the stripper 120 in the axial direction. Attached to the end face.
　ブレードホルダ１５０の軸方向他側の端面は、ストリッパ１２０の軸方向一側の端面よりも大きい。ブレードホルダ１５０は、大径部１２２の周方向両端においてブレード１１０を保持する。 The end face on the other side in the axial direction of the blade holder 150 is larger than the end face on the one side in the axial direction of the stripper 120. The blade holder 150 holds the blade 110 at both ends in the circumferential direction of the large diameter portion 122.
　なお、ストリッパ駆動部材（図示せず）によるストリッパ１２０の軸方向の移動に伴い、ストリッパ１２０に配置されたブレードホルダ１５０が軸方向に移動する。ブレードホルダ１５０の軸方向の移動に伴い、ブレードホルダ１５０に保持される複数のブレード１１０が軸方向に移動する。複数のブレード１１０の軸方向の移動に伴い、連結部材１３０が軸方向に移動する。 The blade holder 150 arranged in the stripper 120 moves in the axial direction as the stripper 120 moves in the axial direction by the stripper drive member (not shown). With the axial movement of the blade holder 150, the plurality of blades 110 held by the blade holder 150 move in the axial direction. As the plurality of blades 110 move in the axial direction, the connecting member 130 moves in the axial direction.
　（コイル挿入方法）
　続いて、図１～図６を参照して、本実施形態のコイル挿入方法を説明する。コイル挿入方法は、ステータコア２０の軸方向に貫通する複数のスロット２１に、コイル線が環状に巻き付けられたコイル１０を、軸方向一側から他側に向けて挿入する。本実施形態のコイル挿入方法は、上述したコイル挿入装置１００を用いたコイル１０の挿入方法である。 (Coil insertion method)
Subsequently, the coil insertion method of the present embodiment will be described with reference to FIGS. 1 to 6. In the coil insertion method, a coil 10 in which a coil wire is wound in an annular shape is inserted into a plurality of slots 21 penetrating in the axial direction of the stator core 20 from one side in the axial direction toward the other side. The coil insertion method of the present embodiment is a method of inserting a coil 10 using the coil insertion device 100 described above.
　まず、図２及び図６に示すように、コイル挿入装置１００をステータコア２０に設置する（ステップＳ１）。このステップＳ１では、図２に示すように、ステータコア２０の軸方向一側にコイル１０及びコイル挿入装置１００を配置する。具体的には、ステータコア２０の径方向内側、かつストリッパ１２０の径方向外側に、ステータコア２０の周方向に配置され、ステータコア２０の軸方向に延びる複数のブレード１１０にコイル１０を保持する。 First, as shown in FIGS. 2 and 6, the coil insertion device 100 is installed in the stator core 20 (step S1). In this step S1, as shown in FIG. 2, the coil 10 and the coil insertion device 100 are arranged on one side in the axial direction of the stator core 20. Specifically, the coils 10 are arranged in the circumferential direction of the stator core 20 on the radial inside of the stator core 20 and on the radial outside of the stripper 120, and hold the coils 10 on a plurality of blades 110 extending in the axial direction of the stator core 20.
　図２では、ブレード１１１、１１２間に保持されるようにコイル１０を配置する。さらに、複数のブレード１１１、１１２の径方向の中央であって軸方向一側に、ストリッパ１２０を配置する。複数のブレード１１１、１１２をブレードホルダ１５０に保持させる。 In FIG. 2, the coil 10 is arranged so as to be held between the blades 111 and 112. Further, the stripper 120 is arranged at the center of the plurality of blades 111 and 112 in the radial direction and on one side in the axial direction. A plurality of blades 111 and 112 are held by the blade holder 150.
　このステップＳ１では、連結部材移動機構１４０の突出部１４１の一部が、ストリッパ１２０の軸方向他側の端面から突出した状態で保持される。 In this step S1, a part of the protruding portion 141 of the connecting member moving mechanism 140 is held in a state of protruding from the end face on the other side in the axial direction of the stripper 120.
　次に、図２に示すように、ステータコア２０の径方向内側に配置されるストリッパ１２０を軸方向一側から他側に向けて移動する（ステップＳ２）。このステップＳ２では、ストリッパ駆動部材（図示せず）により、ストリッパ１２０が移動する。コイル１０の内側はストリッパ１２０に引っ掛けられた状態であるので、ストリッパ１２０の移動に伴い、コイル１０は軸方向一側から他側に向けて移動する。 Next, as shown in FIG. 2, the stripper 120 arranged radially inside the stator core 20 is moved from one side in the axial direction to the other side (step S2). In this step S2, the stripper 120 is moved by the stripper drive member (not shown). Since the inside of the coil 10 is in a state of being hooked on the stripper 120, the coil 10 moves from one side in the axial direction to the other side as the stripper 120 moves.
　また、ストリッパ１２０の移動に伴い、ストリッパ１２０に配置されたブレードホルダ１５０が軸方向一側から他側に向けて移動する。ブレードホルダ１５０のこの移動に伴い、ブレードホルダ１５０に保持される複数のブレード１１０が軸方向一側から他側に向けて移動する。複数のブレード１１０のこの移動に伴い、連結部材１３０が軸方向一側から他側に移動する。このように、複数のブレード１１０の軸方向他側を連結する連結部材１３０を、軸方向一側から他側に向けて移動する。 Further, with the movement of the stripper 120, the blade holder 150 arranged in the stripper 120 moves from one side in the axial direction to the other side. With this movement of the blade holder 150, a plurality of blades 110 held by the blade holder 150 move from one side in the axial direction to the other side. With this movement of the plurality of blades 110, the connecting member 130 moves from one side in the axial direction to the other side. In this way, the connecting member 130 connecting the other sides in the axial direction of the plurality of blades 110 is moved from one side in the axial direction toward the other side.
　また、連結部材移動機構１４０の突出部１４１におけるストリッパ１２０の軸方向他側の端面からの突出長さは、ステップＳ１と同様の状態で、ストリッパ１２０を移動する。 Further, the protrusion length of the stripper 120 from the end face on the other side in the axial direction in the protrusion 141 of the connecting member moving mechanism 140 moves the stripper 120 in the same state as in step S1.
　このように、ステータコア２０の径方向内側に配置され、軸方向に移動するストリッパ１２０により、コイル１０を、軸方向一側から他側に向けて移動させる。ストリッパ１２０を移動することによって、図３に示すように、ステータコア２０のスロット２１にコイル１０を挿入する（ステップＳ３）。 In this way, the coil 10 is moved from one side in the axial direction to the other side by the stripper 120 which is arranged inside the stator core 20 in the radial direction and moves in the axial direction. By moving the stripper 120, the coil 10 is inserted into the slot 21 of the stator core 20 as shown in FIG. 3 (step S3).
　次に、図４に示すように、複数のブレード１１０を軸方向他側から取り外す（ステップＳ４）。このステップＳ４では、連結部材１３０の軸方向一側に配置される連結部材移動機構１４０により、複数のブレード１１０をストリッパ１２０よりも軸方向他側の位置まで、軸方向一側から他側に向けて移動させる。 Next, as shown in FIG. 4, the plurality of blades 110 are removed from the other side in the axial direction (step S4). In this step S4, the connecting member moving mechanism 140 arranged on one side in the axial direction of the connecting member 130 directs a plurality of blades 110 from one side in the axial direction to the other side to a position on the other side in the axial direction with respect to the stripper 120. And move it.
　具体的には、連結部材移動機構１４０の突出部１４１が、ストリッパ１２０の軸方向他側の端面から軸方向他側に向けて、図３の状態から図４の状態に延びる。連結部材移動機構１４０の突出部１４１は、連結部材１３０に接触するので、連結部材１３０を軸方向他側へ押す。これにより、連結部材１３０はストリッパ１２０に対して軸方向他側に移動する。このため、連結部材１３０に連結される複数のブレード１１０もストリッパ１２０に対して軸方向他側へ移動する。突出部１４１がストリッパ１２０の軸方向他側の端面から突出する軸方向の長さＬ１４１は、複数のブレード１１０の連結部材１３０よりも軸方向一側の部分の長さよりも長いので、図４に示すように、コイル１０の挿入完了直前に複数のブレード１１０を進行方向に押し出すことができる。このようにして、コイル１０を後退させることなく、連結部材１３０及び複数のブレード１１０を、ステータコア２０から取り外す。 Specifically, the protruding portion 141 of the connecting member moving mechanism 140 extends from the state of FIG. 3 to the state of FIG. 4 from the end face on the other side in the axial direction of the stripper 120 toward the other side in the axial direction. Since the protruding portion 141 of the connecting member moving mechanism 140 comes into contact with the connecting member 130, the connecting member 130 is pushed to the other side in the axial direction. As a result, the connecting member 130 moves to the other side in the axial direction with respect to the stripper 120. Therefore, the plurality of blades 110 connected to the connecting member 130 also move to the other side in the axial direction with respect to the stripper 120. The length L141 in the axial direction in which the protrusion 141 protrudes from the end face on the other side in the axial direction of the stripper 120 is longer than the length of the portion on one side in the axial direction with respect to the connecting member 130 of the plurality of blades 110. As shown, a plurality of blades 110 can be pushed out in the traveling direction immediately before the completion of insertion of the coil 10. In this way, the connecting member 130 and the plurality of blades 110 are removed from the stator core 20 without retracting the coil 10.
　次に、図５に示すように、ストリッパ１２０を軸方向一側から他側に向けて移動する（ステップＳ５）。このステップＳ５では、複数のブレード１１０が取り外された状態で、ストリッパ１２０により、コイル１０をスロット２１内の所定位置まで移動する。 Next, as shown in FIG. 5, the stripper 120 is moved from one side in the axial direction to the other side (step S5). In this step S5, the coil 10 is moved to a predetermined position in the slot 21 by the stripper 120 with the plurality of blades 110 removed.
　次に、ストリッパ１２０を取り外す（ステップＳ６）。このステップＳ６では、軸方向一側に向けてストリッパ１２０を移動させることにより、ストリッパ１２０をステータコア２０から取り外す。 Next, remove the stripper 120 (step S6). In this step S6, the stripper 120 is removed from the stator core 20 by moving the stripper 120 toward one side in the axial direction.
　以上の工程（ステップＳ１～Ｓ６）を実施することにより、ステータコア２０の軸方向に貫通する複数のスロット２１に、コイル１０を挿入することができる。その結果、図１に示すステータ１を製造できる。 By performing the above steps (steps S1 to S6), the coil 10 can be inserted into a plurality of slots 21 penetrating in the axial direction of the stator core 20. As a result, the stator 1 shown in FIG. 1 can be manufactured.
　なお、図２～図５において、ウエッジ３０を図示していないが、コイル１０の挿入と同時にウエッジ３０をステータコア２０に挿入する工程を備える。また、図２～図５において、絶縁紙４０を図示していないが、スロット２１に挿入されるコイル１０を絶縁紙４０で被覆する工程をさらに備える。この被覆する工程では、スロット２１に予め絶縁紙４０を配置して、コイル１０をスロット２１に挿入してもよい。また、絶縁紙４０を被覆したコイル１０をスロット２１に挿入してもよい。 Although the wedge 30 is not shown in FIGS. 2 to 5, a step of inserting the wedge 30 into the stator core 20 at the same time as inserting the coil 10 is provided. Further, although the insulating paper 40 is not shown in FIGS. 2 to 5, a step of covering the coil 10 inserted in the slot 21 with the insulating paper 40 is further provided. In this coating step, the insulating paper 40 may be arranged in advance in the slot 21 and the coil 10 may be inserted into the slot 21. Further, the coil 10 coated with the insulating paper 40 may be inserted into the slot 21.
　以上説明したように、本実施形態のコイル挿入装置１００及びコイル挿入方法によれば、複数のブレード１１０の軸方向他側の端部を連結する連結部材１３０を軸方向他側に移動させることにより、図４に示すようにコイル１０のスロット２１への挿入が完了する直前（コイル１０がブレード１１０から離脱すべき位置まで前進した時）に、複数のブレードを軸方向他側から取り外すことができる。このため、複数のブレード１１０を軸方向他側から取り外した後に、図５に示すようにストリッパ１２０によりコイル１０を軸方向一側に移動させて、コイル１０のスロット２１への挿入を完了させることができる。このように、複数のブレード１１０を軸方向一側へ後退させることを抑制できるので、コイル１０を軸方向一側へ後退させることを抑制できる。したがって、コイルエンドを短縮することができる。 As described above, according to the coil insertion device 100 and the coil insertion method of the present embodiment, the connecting member 130 connecting the ends of the plurality of blades 110 on the other side in the axial direction is moved to the other side in the axial direction. As shown in FIG. 4, a plurality of blades can be removed from the other side in the axial direction immediately before the insertion of the coil 10 into the slot 21 is completed (when the coil 10 advances to a position where it should be detached from the blade 110). .. Therefore, after removing the plurality of blades 110 from the other side in the axial direction, the coil 10 is moved to one side in the axial direction by the stripper 120 as shown in FIG. 5, and the insertion of the coil 10 into the slot 21 is completed. Can be done. In this way, since it is possible to suppress the retreat of the plurality of blades 110 to one side in the axial direction, it is possible to suppress the retreat of the coil 10 to one side in the axial direction. Therefore, the coil end can be shortened.
　また、本実施形態のコイル挿入装置１００及びコイル挿入方法は、ブレード１１０を軸方向他側へ後退させることを抑制できるので、コイル１０の占積率が高いステータ１の製造に好適に用いられる。また、コイル１０の後退によってストリッパ１２０にコイル１０が押し付けられることを抑制できるので、コイル１０の損傷を抑制できる。さらに、ブレード１１０への負荷を低減することができる。 Further, the coil insertion device 100 and the coil insertion method of the present embodiment can suppress the blade 110 from retracting to the other side in the axial direction, and are therefore suitably used for manufacturing the stator 1 having a high space factor of the coil 10. Further, since it is possible to prevent the coil 10 from being pressed against the stripper 120 due to the retracting of the coil 10, it is possible to suppress damage to the coil 10. Further, the load on the blade 110 can be reduced.
　（変形例１）
　上述した実施形態では、突出部１３１と大径部１３２とを有する連結部材１３０を例に挙げて説明したが、本発明のコイル挿入装置は、複数のブレード１１０の軸方向他側を連結していれば、これに限定されない。本変形例のコイル挿入装置１０１は、図７及び図８に示すように、突出部１３１は省略される。なお、図７は、図２においてステータコア２０を省略した図に対応し、図８は図３に対応する。 (Modification 1)
In the above-described embodiment, the connecting member 130 having the protruding portion 131 and the large diameter portion 132 has been described as an example, but the coil inserting device of the present invention connects the other sides of the plurality of blades 110 in the axial direction. If so, it is not limited to this. In the coil insertion device 101 of this modification, as shown in FIGS. 7 and 8, the protruding portion 131 is omitted. Note that FIG. 7 corresponds to the figure in which the stator core 20 is omitted in FIG. 2, and FIG. 8 corresponds to FIG.
　（変形例２）
　上述した実施形態では、連結部材１３０は、複数のブレード１１０の軸方向他側の端部を連結するが、これに限定されない。本変形例では、連結部材１３０は、複数のブレード１１０の軸方向他側の端縁を含まない端部を連結する。 (Modification 2)
In the above-described embodiment, the connecting member 130 connects the ends of the plurality of blades 110 on the other side in the axial direction, but is not limited thereto. In this modification, the connecting member 130 connects the ends of the plurality of blades 110 that do not include the other end edges in the axial direction.
　（変形例３）
　上述した実施形態では、連結部材１３０は、複数のブレード１１０において軸方向位置が互いに同じ部分を連結するが、これに限定されない。本変形例では、連結部材１３０は、複数のブレード１１０において軸方向位置が互いに異なる部分を連結する。 (Modification 3)
In the above-described embodiment, the connecting member 130 connects the portions of the plurality of blades 110 having the same axial position to each other, but is not limited thereto. In this modification, the connecting member 130 connects the portions of the plurality of blades 110 whose axial positions are different from each other.
　（変形例４）
　上述した実施形態では、連結部材１３０は、２つのブレード１１１、１１２を連結するが、連結するブレード１１０の数は２以上であれば、特に限定されない。 (Modification example 4)
In the above-described embodiment, the connecting member 130 connects the two blades 111 and 112, but the number of the blades 110 to be connected is not particularly limited as long as it is two or more.
　（変形例５）
　上述した実施形態では、連結部材移動機構１４０は、連結部材１３０の軸方向一側に配置されるが、これに限定されない。本変形例では、連結部材移動機構１４０は、連結部材１３０の軸方向他側に配置される。この場合、連結部材移動機構１４０は、連結部材１３０の軸方向一側と接触する。 (Modification 5)
In the above-described embodiment, the connecting member moving mechanism 140 is arranged on one side in the axial direction of the connecting member 130, but is not limited thereto. In this modification, the connecting member moving mechanism 140 is arranged on the other side in the axial direction of the connecting member 130. In this case, the connecting member moving mechanism 140 comes into contact with one side of the connecting member 130 in the axial direction.
　（変形例６）
　上述した実施形態では、コイル挿入装置１００は連結部材移動機構１４０を備えるが、連結部材移動機構１４０は省略されてもよい。この場合、手動で連結部材１３０を軸方向一側へ移動させることにより、複数のブレード１１０を軸方向他側から取り外す。 (Modification 6)
In the above-described embodiment, the coil insertion device 100 includes the connecting member moving mechanism 140, but the connecting member moving mechanism 140 may be omitted. In this case, the plurality of blades 110 are removed from the other side in the axial direction by manually moving the connecting member 130 to one side in the axial direction.
　（変形例７）
　上述した実施形態では、図１に示すように、コイルを挿入する２つのスロット２１は、スロット２１を４つ挟んだ一のスロット２１と他のスロット２１とされるが、これに限定されない。 (Modification 7)
In the above-described embodiment, as shown in FIG. 1, the two slots 21 into which the coils are inserted are one slot 21 sandwiching four slots 21 and another slot 21, but are not limited thereto.
　（変形例８）
　上述した実施形態では、２つのスロット２１に１つのコイル１０を挿入する方法を例に挙げて説明した。４以上のスロット２１に、複数のコイル１０を同時に挿入してもよい。 (Modification 8)
In the above-described embodiment, a method of inserting one coil 10 into two slots 21 has been described as an example. A plurality of coils 10 may be inserted into the four or more slots 21 at the same time.
　今回開示された実施形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した実施形態ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。 The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The scope of the present invention is shown not by the above-described embodiment but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
１　　　：ステータ
１０　　：コイル
２０　　：ステータコア
２１　　：スロット
２２　　：スロットオープン
２３　　：ティース
３０　　：ウエッジ
４０　　：絶縁紙
１００，１０１　：コイル挿入装置
１１０，１１１，１１２　：ブレード
１２０　：ストリッパ
１２１　：シャフト
１２２，１３２　：大径部
１３０　：連結部材
１３１，１４１　：突出部
１４０　：連結部材移動機構
１５０　：ブレードホルダ 1: Stator 10: Coil 20: Stator core 21: Slot 22: Slot open 23: Teeth 30: Wedge 40: Insulating paper 100, 101: Coil insertion device 110, 111, 112: Blade 120: Stripper 121: Shaft 122, 132: Large diameter portion 130: Connecting member 131, 141: Protruding portion 140: Connecting member moving mechanism 150: Blade holder

Claims (10)

  1. 　ステータコアの軸方向に貫通する複数のスロットに、コイル線が環状に巻き付けられたコイルを、軸方向一側から他側に向けて挿入するコイル挿入装置であって、
    　前記ステータコアの径方向内側に配置され、軸方向に移動し、前記コイルを移動させるコイル移動機構と、
    　前記ステータコアの径方向内側、かつ前記コイル移動機構の径方向外側に、前記ステータコアの周方向に配置され、前記ステータコアの軸方向に延び、前記コイルを保持する複数のブレードと、
    　前記複数のブレードの軸方向他側を連結し、軸方向一側から他側に向けて移動する連結部材と、
    を備える、コイル挿入装置。     A coil insertion device that inserts a coil in which a coil wire is wound in an annular shape into a plurality of slots penetrating in the axial direction of the stator core from one side in the axial direction to the other side.
    A coil moving mechanism that is arranged inside the stator core in the radial direction, moves in the axial direction, and moves the coil.
    A plurality of blades arranged radially inside the stator core and radially outside the coil moving mechanism in the circumferential direction of the stator core, extending in the axial direction of the stator core, and holding the coil.
    A connecting member that connects the other sides of the plurality of blades in the axial direction and moves from one side in the axial direction toward the other side.
    A coil insertion device.
  2. 　前記ステータコアの径方向内側、かつ前記コイル移動機構に配置され、前記複数のブレードの軸方向一側を保持するブレードホルダをさらに備える、請求項１に記載のコイル挿入装置。 The coil insertion device according to claim 1, further comprising a blade holder arranged inside the stator core in the radial direction and in the coil moving mechanism to hold one side of the plurality of blades in the axial direction.
  3. 　前記連結部材は、前記ステータコアの径方向内側に配置される、請求項１または２に記載のコイル挿入装置。 The coil insertion device according to claim 1 or 2, wherein the connecting member is arranged inside the stator core in the radial direction.
  4. 　前記連結部材を軸方向一側から他側に向けて移動させ、前記複数のブレードを前記コイル移動機構よりも軸方向他側の位置まで移動させる連結部材移動機構をさらに備える、請求項１～３のいずれか１項に記載のコイル挿入装置。 Claims 1 to 3 further include a connecting member moving mechanism that moves the connecting member from one side in the axial direction toward the other side and moves the plurality of blades to a position on the other side in the axial direction with respect to the coil moving mechanism. The coil insertion device according to any one of the above items.
  5. 　前記連結部材移動機構は、前記連結部材に接触して前記連結部材を移動させる、請求項４に記載のコイル挿入装置。 The coil insertion device according to claim 4, wherein the connecting member moving mechanism is in contact with the connecting member to move the connecting member.
  6. 　前記連結部材移動機構は、前記ステータコアの径方向内側に配置される、請求項４または５に記載のコイル挿入装置。 The coil insertion device according to claim 4 or 5, wherein the connecting member moving mechanism is arranged inside the stator core in the radial direction.
  7. 　前記連結部材移動機構は、前記連結部材の軸方向一側に配置される、請求項４～６のいずれか１項に記載のコイル挿入装置。 The coil insertion device according to any one of claims 4 to 6, wherein the connecting member moving mechanism is arranged on one side in the axial direction of the connecting member.
  8. 　前記連結部材移動機構は、前記コイル移動機構の軸方向他側の端面から軸方向他側に向けて突出する突出部を有し、
    　前記突出部が前記コイル移動機構の軸方向他側の端面から突出する軸方向の長さは、前記複数のブレードの前記連結部材よりも軸方向一側の部分の長さよりも長い、請求項５～７のいずれか１項に記載のコイル挿入装置。     The connecting member moving mechanism has a protruding portion that protrudes from the end face of the coil moving mechanism on the other side in the axial direction toward the other side in the axial direction.
    5. The length of the protruding portion in the axial direction in which the protruding portion protrudes from the end surface on the other side in the axial direction of the coil moving mechanism is longer than the length of a portion of the plurality of blades on one side in the axial direction of the connecting member. The coil insertion device according to any one of 7 to 7.
  9. 　ステータコアの軸方向に貫通する複数のスロットに、コイル線が環状に巻き付けられたコイルを、軸方向一側から他側に向けて挿入するコイル挿入方法であって、
    　前記ステータコアの径方向内側、かつコイル移動機構の径方向外側に、前記ステータコアの周方向に配置され、前記ステータコアの軸方向に延びる複数のブレードに前記コイルを保持する工程と、
    　前記複数のブレードの軸方向他側を連結する連結部材を、軸方向一側から他側に向けて移動する工程と、
    　前記ステータコアの径方向内側に配置され、軸方向に移動する前記コイル移動機構により、前記コイルを、軸方向一側から他側に向けて移動させる工程と、
    　前記複数のブレードを軸方向他側から取り外す工程と、
    を備える、コイル挿入方法。     A coil insertion method in which a coil in which a coil wire is wound in an annular shape is inserted from one side in the axial direction toward the other side in a plurality of slots penetrating in the axial direction of the stator core.
    A step of holding the coil on a plurality of blades arranged in the circumferential direction of the stator core and extending in the axial direction of the stator core on the radial inside of the stator core and the radial outside of the coil moving mechanism.
    A step of moving a connecting member connecting the other sides of the plurality of blades in the axial direction from one side in the axial direction to the other side.
    A step of moving the coil from one side in the axial direction to the other side by the coil moving mechanism arranged inside the stator core in the radial direction and moving in the axial direction.
    The process of removing the plurality of blades from the other side in the axial direction,
    A coil insertion method.
  10. 　前記取り外す工程では、前記連結部材の軸方向一側に配置される連結部材移動機構により、前記複数のブレードを前記コイル移動機構よりも軸方向他側の位置まで軸方向一側から他側に向けて移動させる、請求項９に記載のコイル挿入方法。 In the removing step, the connecting member moving mechanism arranged on one axial side of the connecting member directs the plurality of blades from one axial side to the other side to a position on the other side in the axial direction with respect to the coil moving mechanism. The coil insertion method according to claim 9, wherein the coil is moved.
PCT/JP2020/047812 2020-09-30 2020-12-22 Coil insertion device and coil insertion method WO2022070440A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61174875U (en) * 1985-04-18 1986-10-31
JPH0638461A (en) * 1992-07-09 1994-02-10 Toshiba Corp Stator coil inserter
JP2000125521A (en) * 1998-10-13 2000-04-28 Nissan Motor Co Ltd Coil insertion method and coil inserter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61174875U (en) * 1985-04-18 1986-10-31
JPH0638461A (en) * 1992-07-09 1994-02-10 Toshiba Corp Stator coil inserter
JP2000125521A (en) * 1998-10-13 2000-04-28 Nissan Motor Co Ltd Coil insertion method and coil inserter

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