WO2020110372A1 - Stator manufacturing method and stator manufacturing device - Google Patents

Stator manufacturing method and stator manufacturing device Download PDF

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Publication number
WO2020110372A1
WO2020110372A1 PCT/JP2019/029824 JP2019029824W WO2020110372A1 WO 2020110372 A1 WO2020110372 A1 WO 2020110372A1 JP 2019029824 W JP2019029824 W JP 2019029824W WO 2020110372 A1 WO2020110372 A1 WO 2020110372A1
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WO
WIPO (PCT)
Prior art keywords
coil
slot
jig
holding jig
stator
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Application number
PCT/JP2019/029824
Other languages
French (fr)
Japanese (ja)
Inventor
畔柳　徹
貴彦 保母
Original Assignee
アイシン・エィ・ダブリュ株式会社
株式会社林工業所
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Publication date
Application filed by アイシン・エィ・ダブリュ株式会社, 株式会社林工業所 filed Critical アイシン・エィ・ダブリュ株式会社
Publication of WO2020110372A1 publication Critical patent/WO2020110372A1/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
    • H02K15/08—Forming windings by laying conductors into or around core parts
    • H02K15/085—Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure

Definitions

  • the present invention relates to a stator manufacturing method and a stator manufacturing apparatus.
  • stator manufacturing method and a stator manufacturing apparatus that include a coil including a pair of slot accommodating portions are known.
  • a method of manufacturing such a stator is disclosed in, for example, Japanese Patent Laid-Open No. 2018-170881.
  • the above-mentioned Japanese Unexamined Patent Application Publication No. 2018-170881 discloses a method of manufacturing a stator including a coil including an inner diameter side slot accommodating portion and an outer diameter side slot accommodating portion.
  • a coil is formed by winding a round wire a plurality of times.
  • the inner diameter side slot accommodating portion of the coil is arranged in the coil guide jig arranged inside the stator core in the radial direction.
  • the stator core and the coil guide jig are combined, and the outer diameter side slot accommodating portion of the coil is arranged in the slot of the stator core. ..
  • the coil guide jig is moved in the circumferential direction with respect to the stator core. Specifically, the coil guide jig is fixed to the stator core so that the inner diameter side slot accommodating portion is displaced in the circumferential direction by a predetermined number of slots with respect to the slot in which the outer diameter side slot accommodating portion is arranged. It is moved in the circumferential direction. As a result, the coil is deformed. After that, the inner diameter side slot accommodating portion arranged in the coil guide jig is moved outward in the radial direction, and the inner diameter side slot accommodating portion is accommodated in the slot.
  • the round wire is wound with relatively strong force.
  • the coil is formed by turning, a force is generated in the formed coil in a direction in which the outer dimension of the coil increases. Therefore, it is considered that the outer dimension of the coil increases from the time when the coil is formed to the time when the outer diameter side slot accommodating portion is arranged in the slot.
  • the coil and the stator core may mechanically interfere with each other when the outer diameter side slot accommodating portion is arranged in the slot due to the large outer dimension of the coil. Therefore, conventionally, there has been a demand for a stator manufacturing method and a stator manufacturing apparatus capable of preventing mechanical interference between the coil and the stator core when the slot housing portion is arranged in the slot.
  • the present invention has been made to solve the above problems, and an object of the present invention is to mechanically interfere with a coil and a stator core when a slot housing portion is arranged in a slot. To provide a stator manufacturing method and a stator manufacturing apparatus capable of preventing the above.
  • a method of manufacturing a stator according to a first aspect of the present invention includes a stator core including a plurality of teeth and a plurality of slots formed between the teeth adjacent to each other in the circumferential direction,
  • a method for manufacturing a stator comprising: a coil including a pair of slot accommodating portions accommodated in mutually different slots, wherein a coil is held in each of a plurality of coils to restrict deformation of at least a part of the coil.
  • Pair of slot accommodating portions after the step of disposing the coil retaining jig from the coil, after the step of disposing the first slot And inserting the other slot accommodation part of the other slot into the second slot located at a position distant from the first slot in the circumferential direction.
  • the coil holding jig restricts the deformation of at least a part of the coil, so that the outer dimension of the coil can be prevented from increasing.
  • the coil and the stator core can be arranged. It is possible to prevent mechanical interference between and.
  • a stator manufacturing device includes a stator core including a plurality of teeth and a plurality of slots formed between teeth that are circumferentially adjacent to each other, and a pair of the cores accommodated in different slots.
  • a device for manufacturing a stator comprising: a coil including a slot accommodating portion, and a coil holding jig that holds the coil in each of the plurality of coils to restrict deformation of at least a part of the coil; and a coil holding jig. And a coil holding jig for arranging one slot accommodating portion of the pair of slot accommodating portions of the coil to which the tool is attached in a first slot, which is one of the plurality of slots.
  • the other slot accommodating portion of the pair of slot accommodating portions is inserted into the second slot located at a position circumferentially separated from the first slot in which the one slot accommodating portion is disposed. 2 coil arrangement
  • stator manufacturing apparatus by configuring as described above, when the slot accommodating portion is arranged in the slot, a coil is formed in the same manner as in the stator manufacturing method according to the first aspect. It is possible to provide a stator manufacturing device capable of preventing mechanical interference with the stator core.
  • FIG. 6 is a cross-sectional view of a portion of a stator according to one embodiment. It is a figure which shows the structure of the slot of the stator by one Embodiment.
  • FIG. 3 is a side view showing a coil according to one embodiment. It is a schematic diagram for demonstrating the arrangement
  • FIG. 8A is a state before a bending part opens
  • FIG. 8B is a state in which a bending part is opening
  • FIG. 6 is a figure which shows the state which was done.
  • FIG. 6 is a cross-sectional view showing a configuration of a collar portion of a slot insulating sheet according to an embodiment. It is a side view showing the composition of the coil formation part by one embodiment. It is a sectional view showing composition of a coil formation part by one embodiment. It is a sectional view showing composition of a coil holding jig by one embodiment.
  • FIG. 15A is a diagram for explaining an open state of the coil holding jig according to the embodiment
  • FIG. 15A is a diagram viewed in the G1 direction
  • FIG. 15B is a diagram viewed in the F2 direction.
  • FIG. 18A is the figure seen in the circumferential direction
  • FIG. 18B is the figure seen in the radial direction.
  • FIG. 19A is the figure seen in the circumferential direction
  • FIG. 19B is the figure seen in the radial direction.
  • FIG. 22 is a view of the configuration of the fixed part cutting device according to one embodiment, viewed in the G1 direction, and is a cross-sectional view taken along the line 400-400 in FIG. 21.
  • FIG. 5 is a side view of the stator manufacturing apparatus according to the embodiment with an upper coupler attached thereto.
  • FIG. 6 is a side view of the stator manufacturing apparatus according to the embodiment with an insertion portion inserted therein. It is a partial top view which shows the coil guide jig by one Embodiment.
  • FIG. 6 is a side view showing an upper coupler according to one embodiment.
  • FIG. 6 is a partial plan view of an upper coupler according to one embodiment.
  • 27A is a plan view of a shaft and an upper coupler of a manufacturing apparatus of a stator according to an embodiment
  • FIG. 27A is a plan view of a shaft
  • FIG. 27A is a plan view of a shaft, and FIG.
  • FIG. 27B is a plan view of an upper coupler.
  • FIG. 6 is a side view showing a lower coupler according to an embodiment.
  • FIG. 6 is a plan view of a lower coupler according to one embodiment.
  • FIG. 6 is a plan view of an insertion portion according to one embodiment.
  • FIG. 6 is a side view of the wedge holding member according to the embodiment.
  • FIG. 6 is a front view of the wedge holding member according to the embodiment.
  • FIG. 6 is a perspective view of a toggle mechanism according to one embodiment.
  • FIG. 6 is a side view showing a state where the coil end portion is pressed by the toggle mechanism in the stator manufacturing device according to the embodiment. It is the figure which looked at the composition of the movement regulation jig (regulation state) by one embodiment in the peripheral direction.
  • FIG. 42A is a diagram schematically showing a configuration of a rotation mechanism portion of a movement restricting jig according to one embodiment
  • FIG. 42A is a state rotated in an H2 direction
  • FIG. 42A is a state rotated in an H1 direction. It is the figure which showed. It is the figure which looked at the composition of the jig for rotation of the movement control jig by one embodiment in the direction of an axis.
  • FIG. 6 is a flowchart for explaining a manufacturing process of the stator according to the embodiment. It is a flow figure for explaining a coil formation process by one embodiment. It is a flow figure for explaining the outside diameter side slot accommodation part arrangement process by one embodiment. It is a flow figure for explaining the coil modification process by one embodiment.
  • FIG. 42A is a diagram schematically showing a configuration of a rotation mechanism portion of a movement restricting jig according to one embodiment
  • FIG. 42A is a state rotated in an H2 direction
  • FIG. 42A is
  • FIG. 49A is a diagram for explaining a step of cutting the fixing portion according to the embodiment
  • FIG. 49A is a step initial stage
  • FIG. 49B is a step intermediate stage
  • FIG. 49C is a step late stage. It is a figure for demonstrating the process of arrange
  • FIG. 8 is a diagram for explaining a state in which movement of the outer diameter side slot accommodating portion inward in the radial direction is restricted by the movement restricting jig according to the embodiment. It is a figure for demonstrating the process of deforming a coil and the process of inserting a coil by one Embodiment.
  • FIG. 6 is a side view showing a state where the inner diameter side slot accommodating portion is pressed via a wedge holding member in the stator manufacturing method according to the embodiment.
  • FIG. 6 is a cross-sectional view showing a state in which the wedge holding member is moved by pressing the wedge driving member in the stator manufacturing method according to the embodiment.
  • FIG. 6 is a side view of a state in which an insertion portion is extracted in the method of manufacturing the stator according to the embodiment.
  • the stator 100 constitutes a part of the rotary electric machine 102. Further, the stator 100 is arranged so as to face the outer peripheral surface of the rotor 101 in the radial direction. That is, the rotary electric machine 102 is configured as an inner rotor type rotary electric machine.
  • the rotary electric machine 102 is configured as, for example, a motor that is driven by being supplied with three-phase alternating current (U-phase, V-phase, and W-phase) power.
  • the “axial direction” and the “central axis direction” mean the direction (Z1 direction or Z2 direction) along the central axis C1 (see FIG. 1) of the stator 100.
  • the “circumferential direction” means the circumferential direction (A1 direction or A2 direction) of the stator 100.
  • the “radial direction” means the radial direction of the stator 100.
  • the “radial inner side” and the “inner diameter side” mean the direction toward the central axis C1 of the stator 100 (B1 direction side), and the “radial outer side” and the “outer diameter side” are the central axis lines of the stator 100. It means the direction away from C1 (B2 direction side).
  • the stator 100 is provided with a plurality of coils 10.
  • the plurality of coils 10 include a U-phase coil 10U to which U-phase AC power is supplied, a V-phase coil 10V to which V-phase AC power is supplied, and a W-phase coil 10W to which W-phase AC power is supplied. including.
  • the U-phase coil 10U, the V-phase coil 10V, and the W-phase coil 10W will be simply referred to as "coil 10" unless otherwise specified.
  • the stator 100 includes a stator core 20 as shown in FIG. Further, the stator core 20 has a length L10 (see FIG. 22) in the axial direction.
  • the stator core 20 is provided with a plurality of slots 21.
  • the stator core 20 is provided with a plurality of teeth 22 that form the slots 21.
  • the slot 21 is formed between the teeth 22 that are adjacent to each other in the circumferential direction.
  • the teeth 22 are each formed so as to project inward in the radial direction from the back yoke 23.
  • the slot 21 has an opening 21a that opens radially inward.
  • the slot 21 is configured such that the circumferential width W2 of the outer diameter side portion 21c of the slot 21 is larger than the circumferential width W1 of the inner diameter side portion 21b of the slot 21.
  • the circumferential width of the opening 21a is, for example, the width W1.
  • a plate-shaped wedge member 21e for preventing the coil 10 from moving (falling off) inward in the radial direction is disposed near the opening 21a.
  • the wedge member 21e is provided in the groove 21d near the opening 21a of the slot 21.
  • the groove portion 21d has a circumferential width larger than W1 (width W3) because the plate-shaped wedge member 21e is arranged (inserted in the central axis direction).
  • the coil 10 is connected to the pair of slot accommodating portions 11 accommodated in the slots 21 of the plurality of slots 21 of the stator core 20 whose circumferential positions are different from each other, and the pair of slot accommodating portions 11. And the coil end portion 12 arranged so as to project outward in the axial direction from the axial end surface 20a (see FIG. 9) of the stator core 20 (teeth 22).
  • the coil 10 is formed by winding the conductive wire 10a a plurality of times.
  • the conductive wire 10a is configured as a round wire.
  • the coil 10 has a hexagonal shape or an octagonal shape when viewed from the inside in the radial direction.
  • the pair of slot accommodating portions 11 includes an outer diameter side slot accommodating portion 11a and an inner diameter side slot accommodating portion 11b.
  • the outer diameter side slot accommodation portion 11 a is arranged in the outer diameter side portion 21 c of the slot 21.
  • the inner diameter side slot accommodating portion 11b is separated from the slot 21 in which the outer diameter side slot accommodating portion 11a is arranged by a predetermined number of slots 21 in the circumferential direction (slot pitch is 6 in FIG. 2). It is arranged on the inner diameter side portion 21 b of 21. That is, the coil 10 is a two-layer lap winding coil and a distributed winding coil.
  • the outer diameter side slot housing portion 11a is an example of "one slot housing portion" in the claims.
  • the inner diameter side slot accommodation portion 11b is an example of the "other slot accommodation portion” in the claims.
  • the slot 21 in which the outer diameter side slot housing portion 11a is arranged and the outer diameter side portion 21c are examples of the "first slot” in the claims. Further, a predetermined number of slots 21 (in FIG. 2, the slot pitch is 6), slots 21 separated from the slots 21 in which the outer diameter side slot accommodating portions 11a are arranged, and slots 21 and inner diameter side portions 21b. Is an example of the “second slot” in the claims.
  • the slot accommodation portions 11 of the same phase are arranged in the inner diameter side portion 21b and the outer diameter side portion 21c.
  • the slot 21 is provided with a pair of slot accommodating portions 11, a first connecting portion 33a, a second connecting portion 33b, and a slot insulating sheet 40, which will be described later.
  • the pair of slot accommodating portions 11 and the coil end portion 12 are continuously formed.
  • Each of the pair of slot accommodating portions 11 is formed to linearly extend in the direction of the central axis C1.
  • the coil end portion 12 connects the outer diameter side slot accommodating portion 11a and the inner diameter side slot accommodating portion 11b, and is arranged so as to extend along the circumferential direction so as to straddle the plurality of slots 21 (see FIG. 2). ing.
  • the coil end portions 12 are provided on the Z1 direction side and the Z2 direction side of the pair of slot accommodating portions 11, respectively.
  • the coil end portion 12 of the coil 10 of one phase (for example, the U-phase coil 10U) and the coil end portion 12 of the coil 10 of another phase (for example, the V-phase coil 10V) are arranged in the radial direction. And adjacent to each other in the circumferential direction.
  • the stator 100 includes a plurality (for example, the same number as the coils 10) of insulating sheets 30.
  • the insulating sheet 30 is disposed on the coil end portion 12, and the plurality of bent portions 31 provided so as to extend along the central axis C1 direction are expanded (see FIG. 7).
  • the part 32 is included.
  • the insulating sheet 30 is provided with a connecting portion 33 connected to the coil end insulating portion 32.
  • the insulating sheet 30 is an example of the "insulating member" in the claims.
  • Each of the coil end insulating portions 32 of the plurality of insulating sheets 30 is arranged radially outside each of the coil end portions 12 of the plurality of coils 10, as shown in FIG.
  • the insulating sheet 30 is arranged between the adjacent coils 10 (coil end portions 12). Then, between the coil end portion 12 of the coil 10 on the radially inner side of the plurality of coils 10 and the coil end portion 12 of the coil 10 on the radially outer side adjacent to the coil 10 on the radially inner side, The insulating sheet 30 attached to the radially inner coil 10 is placed. Note that, in FIG.
  • the coil 10 and the insulating sheet 30 are illustrated as being separated from each other (to have a gap) for ease of description, but the coil 10 and the insulating sheet 30 are not illustrated. May be in contact.
  • the coil end insulating portion 32 of the insulating sheet 30 is in contact with the radially outer side surface 12 a of the coil end portion 12.
  • the insulating sheet 30 is formed of Nomex (registered trademark) or Kapton (registered trademark) or a combination thereof.
  • Nomex is a fiber (insulating paper) formed from aramid polymer.
  • the insulating sheet 30 may be composed of a core material made of a PEN (polyethylene naphthalate) film and a surface member made of aramid fiber provided so as to cover both surfaces of the core material.
  • the above-mentioned materials or other materials may be entirely adhered to each other by an adhesive or fusion to form a single sheet-shaped insulating sheet 30.
  • the insulating sheet 30 is formed in a sheet shape, and by bending the sheet-shaped insulating sheet 30 a plurality of times, a plurality of coil end insulating portions 32 are provided with a plurality of insulating sheets.
  • a bent portion 31 is formed.
  • FIG. 6 shows the insulating sheet 30 before the plurality of bent portions 31 are unfolded (a state in which the bent portions 31 are folded: see FIG. 8A), and the insulating sheet 30 at the time of manufacturing the stator 100. Shows the state of.
  • FIG. 7 shows the insulating sheet 30 after the plurality of bent portions 31 are expanded (see FIGS. 8B and 8C), and shows the state of the insulating sheet 30 after the stator 100 is completed. ing.
  • the plurality of bent portions 31 are formed so as to extend parallel to each other along the central axis C1 direction.
  • the length L2 (see FIG. 7) of the plurality of bent portions 31 in the direction orthogonal to the central axis C1 direction after the plurality of bent portions 31 is expanded is equal to the length before the plurality of bent portions 31 is expanded. It becomes larger than the length L1 (see FIG. 6) of the bent portion 31 in the direction orthogonal to the central axis C1 direction.
  • the length L4 (see FIG. 7) of the coil end insulating portion 32 in the direction orthogonal to the central axis C1 direction after the plurality of bent portions 31 is expanded is the coil before the plurality of bent portions 31 is expanded.
  • the length is longer than the length L3 (see FIG. 6) of the end insulating portion 32 in the direction orthogonal to the central axis C1 direction. Further, the length L5 of the coil end insulating portion 32 in the direction of the central axis C1 does not change substantially by expanding the plurality of bent portions 31.
  • the bent portion 31 is formed, for example, by folding (folding) a part of the insulating sheet 30.
  • the bent portion 31 is formed in a substantially S shape when viewed in the direction of the central axis C1.
  • the substantially S-shaped bent portion 31 has a length L21 in the direction (radial direction) orthogonal to the central axis C1 direction. Then, the bent portion 31 is pulled from both sides in the direction intersecting with the central axis C1 direction, whereby the folded back portion of the bent portion 31 (FIG. 8B) is opened, and the bent portion 31 is shown in FIG. 8C.
  • the length of the bent portion 31 in the direction orthogonal to the central axis C1 direction is L22, which is larger than the length L21. Then, the bending line 31a at a position corresponding to the bending position of the bending portion 31 is exposed. Further, as shown in FIG. 7, the plurality of bending lines 31a are formed parallel to each other along the direction of the central axis C1.
  • the coil end portion insulating portion 32 has a function of ensuring insulation performance between the coil end portions 12 between different phases (or between the same phases). As shown in FIG. 7, the coil end insulating portion 32 has a shape corresponding to the shape of the coil end portion 12. Specifically, when viewed in the radial direction, the coil end insulating portion 32 and the coil end portion 12 are arranged at positions overlapping with each other. Preferably, when viewed in the radial direction, the coil end insulating portion 32 is formed so as to cover the entire coil end portion 12 (the entire side surface 12a).
  • the insulating sheet 30 is provided with a first coil end insulating portion 32a arranged on the Z1 direction side and a second coil end insulating portion 32b arranged on the Z2 direction side.
  • the first coil end insulating portion 32a and the second coil end insulating portion 32b have the same shape. Both the first coil end insulating portion 32a and the second coil end insulating portion 32b are arranged radially outside the coil 10.
  • ⁇ Structure of fixed part> when the stator 100 is manufactured, a plurality of bent portions 31 are fixed to the coil end insulating portion 32 so that the bent portions 31 do not open.
  • the fixing portion 34 is provided so as to be connected to the end portion of the first coil end insulating portion 32a in the Z2 direction.
  • the fixed portion 34 is provided so as to be connected to the end portion of the second coil end insulating portion 32b in the Z1 direction.
  • the fixed portion 34 is formed by fixing the folded-back portions of the bent portion 31 to each other with an adhesive or the like.
  • the fixing portion 34 is formed so as to protrude from the first coil end insulating portion 32a and the second coil end insulating portion 32b toward the inner side of the winding of the coil 10. Further, the fixing portion 34 is removed when the stator 100 is completed.
  • the insulating sheet 30 is provided with a connecting portion 33 (leg) that connects the first coil end insulating portion 32a and the second coil end insulating portion 32b.
  • the connecting portion 33 includes a first connecting portion 33a arranged radially outside and a second connecting portion 33b arranged radially inside.
  • the first connecting portion 33a constitutes the outer diameter side slot accommodating portion 11a of the pair of slot accommodating portions 11 and the stator core that constitutes the radially outer bottom portion of the slot 21.
  • 20 back yoke 23
  • the second connection portion 33b is arranged between the inner diameter side slot accommodating portion 11b and the opening 21a.
  • each slot 21 is provided with a slot insulating sheet 40 that insulates the slot housing portion 11 from the slot 21.
  • the slot insulating sheet 40 is made of the same material as the insulating sheet 30, and is made of, for example, Nomex, Kapton, or PEN film, or a combination thereof.
  • the slot insulating sheet 40 includes a slot insulating portion 41 arranged between the slot accommodating portion 11 and the slot 21.
  • the slot insulating portion 41 is arranged so as to cover the inner side surface of the slot 21.
  • the slot insulating portion 41 has a function of ensuring insulation between the coil 10 (slot housing portion 11) and the slot 21.
  • the slot insulating sheet 40 also includes a collar-shaped portion 42 protruding in the Z1 direction or the Z2 direction from the end surface 20a of the stator core 20 in the rotation axis direction. That is, the collar-shaped portion 42 is arranged so as to cover the radially outer side and the circumferentially both sides of the coil end portion 12.
  • the collar-shaped portion 42 is formed continuously with the slot insulating portion 41, and is folded back toward the end surface 20a of the stator core 20 to form a collar-shaped portion.
  • the manufacturing apparatus 200 of the stator 100 will be described.
  • the direction (the direction in which the outer diameter side slot accommodating portion 11a and the inner diameter side slot accommodating portion 11b extend) in the axial direction (Z direction) when arranged in the stator core 20 is defined as the E direction
  • the winding axis direction of the coil 10 is the F direction
  • the direction orthogonal to the E direction and orthogonal to the F direction is the G direction.
  • the manufacturing apparatus 200 includes a coil forming section 210 for forming the coil 10, as shown in FIG. 10.
  • the coil forming part 210 includes a winding core 211, two side plates 212, and two winding core holding jigs 213. Then, as shown in FIG. 11, the two side plates 212 are arranged so as to sandwich the winding core 211 from both sides in the F direction, thereby forming a winding frame.
  • the coil forming part 210 has an elliptical (track-shaped) shape (see FIG. 10) when viewed in the F direction by winding the conductive wire 10a around the winding core 211 (winding frame), and E It is configured to form a coil 10 having a length L31 in the direction.
  • the winding core 211 is formed to have an oval (or elliptical) shape when viewed in the F direction and a width W11 (see FIG. 11) in the G direction. Further, the winding core 211 and the side plate 212 are arranged so as to sandwich the insulating sheet 30 between the winding core 211 and the side plate 212.
  • the winding core holding jig 213 is configured to hold the winding core 211 so as to sandwich the winding core 211 from both sides in the F direction via the side plates 212.
  • the core holding jig 213 is configured to hold the coil 10 from both sides in the F direction.
  • the winding core holding jig 213 has a width W12 in the G direction and is formed in a plate shape extending in the E direction.
  • the width W12 is substantially the same as the width W11.
  • the core holding jig 213 is configured to be movable in the E direction integrally with the side plate 212.
  • the manufacturing apparatus 200 is provided in each of the plurality of coils 10, and holds the coils 10 to restrict the deformation of at least a part of the coils 10. Equipped with.
  • the coil holding jig 220 includes plate members 221 and 222 that hold the coil 10 so as to sandwich it from both sides in the circumferential direction of the stator core 20 (both sides in the F direction in FIG. 12), and a connecting member 223.
  • Including and The plate members 221 and 222 are configured to restrict the deformation of the coil 10 in the circumferential direction of the stator core 20, by holding the coil 10 so as to sandwich the coil 10 from both sides in the circumferential direction of the stator core 20.
  • the plate members 221 and 222 are configured to prevent the dimension of the coil 10 from expanding.
  • the connecting member 223 is an example of the “connecting portion” in the claims.
  • the plate member 221 includes a first portion 221a arranged on the F2 direction side of the coil 10 and second portions 221b connected to the first portion 221a and arranged on both sides of the coil 10 in the G direction.
  • the plate member 222 includes a first portion 222a arranged on the F1 direction side of the coil 10 and second portions 222b connected to the first portion 222a and arranged on both sides of the coil 10 in the G direction.
  • the first portions 221a and 222a can restrict the coil 10 from being deformed so as to expand in the F direction on both sides. That is, the width W21 of the coil 10 in the F direction is less than or equal to the width W2 (or width W1) of the slot 21. Further, the second portions 221b and 222b can restrict the coil 10 from being deformed so as to expand in the G direction on both sides.
  • the plate members 221 and 222 each have a substantially U-shape by being provided with the openings 221c and 222c when viewed from the circumferential direction (A1 direction side) of the stator core 20. Is formed.
  • the plate member 221 is provided with an opening 221c that opens toward the Z1 direction side of the stator core 20.
  • the plate member 222 is provided with an opening 222c that opens to the Z1 direction side of the stator core 20. That is, the opening portion 221c is formed as a notch portion that is notched in the Z2 direction from the end portion 221e on the Z1 direction side of the plate member 221. Further, the opening 222c is formed as a cutout portion that is cut out in the Z2 direction from the end portion 222e on the Z1 direction side of the plate member 222.
  • the length L32 of the openings 221c and 222c in the E direction is equal to or longer than the length L31 of the coil 10 in the E direction in the state before the coil deforming step (S30).
  • the width W13 of the openings 221c and 222c in the G direction is equal to or larger than the width W11 of the winding core 211 and the width W12 of the winding core holding jig 213. Accordingly, the coil holding jig 220 is configured to be able to hold the coil 10 in a state in which the coil 10 and the winding core 211 are held by the winding core holding jig 213 via the openings 221c and 222c.
  • the plate members 221 and 222 are configured to hold the coil 10 so that the insulating sheet 30 is sandwiched between the coil 10 (coil end portion 12) and the plate member 222. That is, the coil holding jig 220 is configured to hold the coil 10 to which the insulating sheet 30 is attached. Further, the plate members 221 and 222 are configured to hold the coil 10 so that the fixing portion 34 of the insulating sheet 30 is exposed through the openings 221c and 222c when viewed in the circumferential direction.
  • the connecting member 223 is configured to connect the plate members 221 and 222 near the ends 221d and 222d, respectively.
  • the connecting member 223 includes two connecting plate portions 223a and a rotating shaft portion 223b. That is, the connecting member 223 is configured in a hinge shape.
  • “the vicinity of the end portions 221d and 222d” includes the end portions 221d and 222d, a region from the end portions 221d and 222d to the coil end portion 12 on the E2 direction side of the coil 10, and It means a region further in the E2 direction from the end portions 221d and 222d.
  • the rotating shaft portion 223b is an example of the "fulcrum" in the claims.
  • the coil holding jig 220 has a state in which the plate members 221 and 222 shown in FIG. 15 are opened and a state in which the plate members 221 and 222 shown in FIGS. 12 and 13 are closed with the rotating shaft portion 223b as a fulcrum. And can be changed. That is, the closed state means a state in which the plate members 221 and 222 are substantially parallel to each other and both the plate members 221 and 222 are in contact with (close to) the coil 10 (a state in which the coil 10 is held).
  • the opened state means a state in which at least one of the plate members 221 and 222 is rotated around the rotation shaft portion 223b and either plate member 221 or 222 is not in contact with the coil 10 (holding the coil 10). It means the state of not doing).
  • the manufacturing apparatus 200 includes a first coil arranging portion 230 for arranging the outer diameter side slot accommodating portion 11 a in the slot 21.
  • the first coil placement portion 230 is configured to place the outer diameter side slot housing portion 11 a of the coil 10 to which the coil holding jig 220 is attached in the slot 21.
  • the first coil placement unit 230 includes a jig pressing member 231, a pressing position restricting member 232, and a coil position fixing jig 233.
  • the jig pressing member 231 is applied with a pressing force to the jig pressing member 231 in the Z2 direction by a driving device (not shown) with the end portion 231a on the Z2 direction side in contact with the end portions 221e and 222e of the coil holding jig 220.
  • the jig pressing member 231 is configured to press the coil holding jig 220 in the Z2 direction.
  • the first coil arranging portion 230 is configured to insert the outer diameter side slot accommodating portion 11 a of the coil 10 to which the coil holding jig 220 is attached into the slot 21 in the axial direction.
  • the pressing position restricting member 232 is arranged outside the jig pressing member 231 in the circumferential direction, and is configured to move integrally with the jig pressing member 231. Then, in the first coil arranging portion 230, the pressing position regulating member 232, which moves integrally with the jig pressing member 231, comes into contact with the end surface 20a of the stator core 20 (see FIG. 9), so that the jig pressing member 231 has an axial direction. By restricting the movement of the outer diameter side slot accommodating portion 11a, the axial position of the slot 21 in the slot 21 is restricted.
  • the coil position fixing jig 233 is configured to hold the winding inner side of the coil 10, as shown in FIGS. 16 and 17. Specifically, as shown in FIG. 19, it includes a plate-shaped portion 233a extending in the axial direction and a protrusion 233b connected to the plate-shaped portion 233a and protruding in the circumferential direction (A1 direction).
  • the protruding portion 233b is formed in a cylindrical shape protruding in the A1 direction. Then, in the manufacturing apparatus 200, the protruding portion 233b is arranged so as to abut (hook) the side surface on the winding inner side of the coil 10.
  • the coil position fixing jig 233 moves the coil holding jig 220 to the Z2 direction side with respect to the stator core 20 in a state where the axial position of the coil 10 is fixed, so that the coil 10 remains in the slot 21. In this state, the coil holding jig 220 can be removed.
  • the manufacturing apparatus 200 includes a fixed portion cutting device 240 that cuts the fixed portion 34 of the insulating sheet 30.
  • the fixed portion cutting device 240 includes a blade portion 241, a coil protective material 242, a clamp material 243, a receiving material 244, and a chip discharging material 245.
  • the blade portions 241 are provided at both ends of the chip discharging material 245 in the E direction, and are arranged so as to project from the chip discharging material 245 in the F2 direction. As shown in FIG. 21, one of the two blade portions 241 overlaps with the boundary portion 34a between the fixing portion 34 of the insulating sheet 30 and the first coil end insulating portion 32a when viewed in the F2 direction. Is located in. The other blade portion 241 is arranged so as to overlap the boundary portion 34a between the fixed portion 34 and the second coil end portion insulating portion 32b when viewed in the F2 direction.
  • the blade portion 241 passes through the boundary portion between the fixed portion 34 of the insulating sheet 30 and the first coil end insulating portion 32a (second coil end insulating portion 32b) in the F2 direction, and thus the insulating sheet 30. It is possible to cut the fixing portion 34 from the above and cut off the fixing portion 34.
  • the coil protection material 242 is arranged between the blade portion 241 and the coil 10 in the G direction inside the winding of the coil 10. Accordingly, the coil protection member 242 can regulate the movement (deformation) of the coil 10 inside the winding when the blade 241 cuts off the fixing portion 34.
  • the clamp members 243 are arranged inside the winding of the coil 10 at both ends of the coil protective member 242 in the E direction. As shown in FIG. 20, the clamp material 243 is configured to move in the F2 direction together with the blade portion 241, the coil protection material 242, and the chip discharge material 245. The clamp member 243 may be configured to move in the F2 direction together with the blade portion 241 and the chip discharging material 245 after the coil protection member 242 is moved in the F2 direction.
  • the receiving members 244 are arranged inside the winding of the coil 10 at both ends in the E direction of the coil protecting member 242.
  • the receiving material 244 is arranged on the F2 direction side of the clamp material 243, and when the clamp material 243, the blade portion 241, the coil protection material 242, and the chip discharge material 245 move in the F2 direction.
  • the clamp member 243 is configured to contact the clamp member 243 via the first coil end insulating portion 32a (second coil end insulating portion 32b) to restrict the movement of the clamp member 243 in the F2 direction. There is.
  • the blade portion 241 cuts off the fixed portion 34
  • the fixed portion 34 and the first coil end insulating portion 32a are provided between the clamp material 243 and the receiving material 244. It is possible to sandwich the vicinity of the boundary portion 34a with the E1 direction side (E2 direction side).
  • the chip discharge material 245 is configured to move integrally with the blade portion 241 in the F2 direction with respect to the clamp material 243 and the coil protection material 242 in a state where the clamp material 243 is in contact with the receiving material 244. There is.
  • the chip discharging material 245 is arranged between the two blade portions 241 in the E direction. As a result, it is possible to push out the fixed portion 34 that has been cut off to the F2 direction side by the chip discharge material 245 and discharge it to the F2 direction side.
  • the manufacturing device 200 of the stator 100 includes a coil deforming device 50.
  • the coil deforming device 50 includes a plurality of coil guide jigs 51, a lower rotation driving device 52, an upper coupler 53, a coil pressing device 54 (see FIGS. 22 and 23), a lower coupler 55, and a shaft 56.
  • the coil deforming device 50 is an example of the “second coil disposing portion” and the “coil deforming jig” in the claims.
  • the coil guide jig 51 is an example of the “coil deforming jig” in the claims.
  • the coil pressing device 54 is an example of the “second coil arrangement portion” in the claims.
  • a plurality of coil guide jigs 51 (48 in this embodiment) are provided independently of each other so as to be adjacent to each other along the circumferential direction.
  • the plurality of coil guide jigs 51 each have a substantially triangular shape or a wedge shape that tapers inward in the radial direction when viewed from the Z1 direction side.
  • the plurality of coil guide jigs 51 are arranged at equal angular intervals in the circumferential direction, and a gap CL1 is provided.
  • the width W30 of the clearance CL1 is larger than the width W21 of the inner diameter side slot accommodating portion 11b, and has a substantially constant size in the radial direction.
  • the clearance CL1 is configured such that the inner diameter side slot accommodating portion 11b is movable across both sides of the clearance CL1 in the radial direction.
  • the openings through which the inner diameter side slot accommodating portions 11b can pass are provided on both sides of the clearance CL1 in the radial direction.
  • the "width of the clearance CL1" means the end face 51a of one coil guide jig 51 that faces the end face 51a of another coil guide jig 51 adjacent to the one coil guide jig 51. It means the distance to 51b.
  • a space S is provided inside the plurality of coil guide jigs 51 in the radial direction, and the insertion portion 54 a of the coil pressing device 54 is configured to be movable in the central axis direction in the space S.
  • the plurality of coil guide jigs 51 includes a guide main body portion 51c having a substantially rectangular cross-section along the radial direction, a plurality of coil guide jigs 51 protruding from the guide main body portion 51c to the Z2 direction side, and A lower connecting portion 51d connected to a lower rotation drive device 52 provided on the lower side (Z2 direction side) of the guide jig 51, and protruding from the guide main body portion 51c in the Z1 direction side and connected to the upper coupler 53.
  • the upper connection portion 51e is included.
  • the guide body 51c, the lower connecting portion 51d, and the upper connecting portion 51e are integrally formed.
  • the guide body 51c has a length L11 in the central axis direction.
  • the shaft 56 is provided so as to extend in the central axis direction (Z direction) so as to penetrate both the lower rotation drive device 52 and the upper coupler 53.
  • the shaft 56 is provided so as to extend in the central axis direction (Z direction) at the center of the plurality of circumferentially provided coil guide jigs 51.
  • the shaft 56 is configured to transmit the rotational driving force from the lower rotation driving device 52 to the upper coupler 53. A specific configuration will be described below.
  • the upper coupler 53 is attached to the upper ends 51f (see FIG. 22) of the plurality of coil guide jigs 51 (upper connecting portions 51e) when the coil 10 is deformed.
  • the upper coupler 53 includes a concave portion 53a that is fitted to the upper end portion 51f of the coil guide jig 51 and fits into the upper end portion 51f of each of the plurality of coil guide jigs 51.
  • the upper coupler 53 also includes a plate-shaped flange member 53b and a cap member 53c attached to the flange member 53b.
  • a plurality of recesses 53a are provided on the lower surface 53d (see FIG. 25) of the flange member 53b so as to be adjacent to each other along the circumference.
  • the cap member 53c is provided with a plurality of screw holes 53e into which screw members (not shown) for fastening the cap member 53c and the flange member 53b are inserted.
  • the cap member 53c is fastened to the upper surface 53f (surface in the Z1 direction side) of the flange member 53b.
  • the flange member 53b and the cap member 53c are fitted to the shaft 56 such that the rotational driving force can be transmitted, with the upper coupler 53 attached to the upper end portion 51f of the coil guide jig 51 (FIG. 22). See) Through hole 53g and through hole 53h.
  • the through hole 53g and the through hole 53h are provided so as to overlap each other when viewed from the central axis direction.
  • the shaft 56 includes a convex portion 56 b provided on the peripheral surface 56 a of the shaft 56.
  • a plurality of convex portions 56b are provided circumferentially (equal angular intervals) along the circumferential surface 56a.
  • the convex portion 56b has a shape that tapers outward in the radial direction, but is not limited to this shape.
  • a recess 53i that engages with the protrusion 56b of the shaft 56 in the state where the shaft 56 is fitted is provided in the through hole 53h of the cap member 53c of the upper coupler 53.
  • a plurality of recesses 53i are provided circumferentially (at equal angular intervals) along the peripheral surface 53j of the through hole 53h. Further, each of the plurality of recesses 53i is provided so as to extend in the central axis direction (Z direction).
  • a recess 53k (see FIG. 26) that engages with the protrusion 56b of the shaft 56 when the shaft 56 is fitted is provided in the through hole 53g of the flange member 53b of the upper coupler 53.
  • a plurality of recesses 53k are circumferentially provided along the peripheral surface 53l (see FIG. 26) of the through hole 53h. Further, each of the plurality of recesses 53k is provided so as to extend in the central axis direction (Z direction).
  • each of the upper coupler 53 and the lower rotation driving device 52 rotates, so that the coil guide jig 51 receives a rotation driving force at both ends in the vertical direction.
  • the plurality of coil guide jigs 51 rotate.
  • Each of the concave portions 53i and the concave portions 53k has a shape that tapers outward in the radial direction, similarly to the convex portion 56b.
  • the cap member 53c is fastened to the flange member 53b such that the recess 53i and the recess 53k overlap each other when viewed from the central axis direction. 27(b), the screw hole 53e is not shown for simplification.
  • each of the cap member 53c and the flange member 53b has a circular shape when viewed from the Z1 direction side.
  • each of the diameter r1 of the cap member 53c (see FIG. 27B) and the diameter r2 of the flange member 53b (see FIG. 27B) is the inner peripheral diameter r3 of the stator core 20 having an annular shape ( (See FIG. 1). That is, when the upper coupler 53 is attached to the coil guide jig 51, the entire upper coupler 53 is surrounded by the stator core 20 when viewed from the Z1 direction side.
  • the lower coupler 55 is attached to the lower rotation drive device 52 when the coil 10 is deformed.
  • the lower coupler 55 is configured to transmit the rotational driving force of the lower rotary drive device 52 to the upper coupler 53 via the shaft 56 when the coil 10 is deformed.
  • the lower coupler 55 includes a through hole 55a into which the shaft 56 is inserted when the coil 10 is deformed.
  • the lower coupler 55 also includes a plurality of screw holes 55b for fastening the lower rotation drive device 52.
  • the lower coupler 55 is fastened to the lower rotation drive device 52 by inserting a screw member (not shown) into the screw hole 55b.
  • a plurality of recesses 55d extending in the central axis direction (Z direction) are provided circumferentially (at equal angular intervals). ..
  • the rotational driving force of the lower rotation driving device 52 is transmitted to the shaft 56 via the lower coupler 55. It As a result, the upper coupler 53 is rotated by the rotational driving force transmitted to the shaft 56 via the lower coupler 55.
  • the coil pressing device 54 includes an insertion portion 54a having a tapered shape that tapers in the insertion direction (Z2 direction).
  • the tip of the insertion portion 54a on the insertion direction side (Z2 direction side) is tapered.
  • the insertion portion 54a is connected to the cylindrical portion 154 so as to circumferentially surround the cylindrical portion 154 and a plurality of (48 in the present embodiment) tapered in the insertion direction.
  • a plate-shaped wing portion 254 is included.
  • the plurality of wing portions 254 are provided so as to extend radially (see FIG. 30) from the cylindrical portion 154 when viewed from the central axis direction. Further, the plurality of wing portions 254 are provided so as to overlap with the clearance CL1 (see FIG. 55) between the coil guide jigs 51 when viewed from the central axis direction (Z1 direction side).
  • the insertion portion 54a is inserted in the stator core 20 by being moved in the central axis direction (Z2 direction side). Further, the insertion portion 54a is configured such that, when the insertion portion 54a is inserted, the inner diameter side slot accommodating portion 11b is positioned on the side of the slot 21 located at a position distant in the circumferential direction from the slot 21 in which the outer diameter side slot accommodating portion 11a on the radial outside is arranged. Press.
  • the coil pressing device 54 includes a plurality of (48 in the present embodiment) pressing portions 54b arranged inside the coil guide jig 51 in the radial direction.
  • Each of the plurality of pressing portions 54b is arranged inside the different slots 21 in the radial direction.
  • the pressing portion 54b is pressed radially outward by the insertion portion 54a (wing portion 254) and enters the gap CL1 between the adjacent coil guide jigs 51 ( (See FIG. 55).
  • the inner diameter side slot accommodating portion 11b is pressed from the radially inner side to the radially outer side by the pressing portion 54b.
  • the insertion portion 54a extends in the central axis direction (Z direction) and includes an insertion hole 54c into which the shaft 56 is inserted at the time of insertion.
  • the diameter r4 of the insertion hole 54c on the side opposite to the insertion direction (Z1 direction side) is larger than the diameter r5 of the insertion hole 54c on the insertion direction side (Z2 direction side).
  • the manufacturing device 200 of the stator 100 includes a wedge holding member 57 that holds the wedge member 21e.
  • the length L42 of the wedge holding member 57 in the central axis direction (Z direction) is larger than the length L43 of the wedge member 21e in the central axis direction.
  • the length L42 of the wedge holding member 57 in the central axis direction (Z direction) is larger than the length L10 of the stator core 20 in the central axis direction (see FIG. 22).
  • the coil end portion 12 protruding from the stator core 20 in the central axis direction (Z1 direction side and Z2 direction side) when the inner diameter side slot accommodating portion 11b is pressed from the inner side in the radial direction by the wedge holding member 57 as described later. Are pressed and expanded by the wedge holding member 57.
  • the wedge member 21e is arranged on a step portion 57b provided on the radially outer surface 57a of the wedge holding member 57. Since the wedge member 21e is arranged in the step portion 57b, the wedge member 21e is provided in the portion 57c above the center (Z1 direction side) of the center of the wedge holding member 57 in the central axis direction (Z direction). In the wedge holding member 57, a portion below the portion 57c (Z2 direction side) will be referred to as a portion 57d below.
  • portion 57d is provided on the moving direction side (Z2 direction side) of the wedge holding member 57 when the wedge member 21e is arranged in the opening 21a with respect to the portion 57c.
  • the wedge holding member 57 is arranged inside of the inner diameter side slot accommodating portion 11b in the radial direction when viewed from the central axis direction (Z direction). Specifically, the wedge holding member 57 is arranged so as to be sandwiched by the inner diameter side slot housing portion 11b (slot 21) and the pressing portion 54b in the radial direction when viewed from the central axis direction (see FIG. 24). There is. More specifically, the wedge holding member 57 has a stepped portion 51g (see FIG. 22) provided on the lower connection portion 51d of the coil guide jig 51 before the pressing portion 54b is pressed by the insertion portion 54a. The guide main body portions 51c adjacent to each other in the direction are arranged (in the clearance CL1). A plurality of wedge holding members 57 (48 in the present embodiment) are provided so as to correspond to each of the plurality of inner diameter side slot accommodating portions 11b (gap CL1).
  • the manufacturing apparatus 200 of the stator 100 has a toggle mechanism provided adjacent to the opening 21a (see FIG. 3) of the slot 21 in the circumferential direction when viewed from the central axis direction (Z direction). 54d.
  • a plurality of toggle mechanisms 54d (48 in the present embodiment) are provided so as to correspond to each of the plurality of coil guide jigs 51.
  • the toggle mechanism 54d is provided so as to overlap with the radially outer end of the guide main body 51c of the coil guide jig 51 when viewed from the central axis direction (see FIG. 24).
  • the toggle mechanism 54d is provided at a position (see FIG. 30) sandwiched between the wing portions 254 adjacent to each other in the circumferential direction when viewed from the central axis direction.
  • Each of the plurality of toggle mechanisms 54d is attached to the insertion portion 54a, and is provided along the outer peripheral surface 54e of the insertion portion 54a (cylindrical portion 154). That is, the plurality of toggle mechanisms 54d are provided so as to circumferentially surround the insertion portion 54a.
  • each of the plurality of toggle mechanisms 54d has a plate-shaped portion 54f extending in the central axis direction (Z direction) and a coil guide jig 51 side (Z2 direction side) of the plate-shaped portion 54f. And a toggle 54g attached to the end of the.
  • the toggle 54g is composed of a first portion 54h attached to the plate portion 54f and a pair of second portions 54i provided so as to sandwich the first portion 54h in the circumferential direction.
  • the pair of second portions 54i is configured to be rotatable about a pin 54j that penetrates the pair of second portions 54i and the first portion 54h.
  • each of the first portion 54h and the pair of second portions 54i is provided with a through hole through which the pin 54j passes.
  • the pair of second portions 54i come into contact with the guide main body portion 51c (moving from the Z1 direction side), so that the pair of second portions 54i are in mutually opposite directions (clockwise and counterclockwise when viewed from the circumferential direction). Rotate).
  • the pair of second portions 54i which are fixed so as to intersect with each other when viewed from the circumferential direction, are pressed from the lower side (Z2 direction side) by the guide main body 51c so that the angle at which they intersect with each other becomes large.
  • the coil ends 12 projecting from the stator core 20 in the Z1 direction are pressed from the radially inner side to the radially outer side by the one ends of the pair of second portions 54i.
  • the manufacturing device 200 of the stator 100 includes a wedge driving member 54k attached to the insertion portion 54a and provided along the outer peripheral surface 54e of the insertion portion 54a (cylindrical portion 154).
  • a plurality of wedge driving members 54k (48 in the present embodiment) are provided so as to correspond to the plurality of wedge holding members 57.
  • Each of the plurality of wedge holding members 57 is configured to be slidable in the central axis direction along the outer peripheral surface 54e.
  • the manufacturing apparatus 200 of the stator 100 includes a sleeve 54l attached to the insertion portion 54a and provided along the outer peripheral surface 54e of the insertion portion 54a (cylindrical portion 154).
  • the sleeve 54l has a cylindrical shape provided so as to surround the insertion portion 54a.
  • the sleeve 54l is configured to press the plurality of wedge driving members 54k from above by slidingly moving in the central axis direction. Thereby, each of the plurality of wedge driving members 54k is configured to slide integrally with the sleeve 54l.
  • the manufacturing device 200 of the stator 100 includes a sleeve 54m which is attached to the insertion portion 54a and is provided along the outer peripheral surface 54e of the insertion portion 54a (cylindrical portion 154).
  • the sleeve 54m has a cylindrical shape provided so as to surround the insertion portion 54a.
  • the sleeve 54m is configured to press the plurality of toggle mechanisms 54d (plate-shaped portions 54f) from above by slidingly moving in the central axis direction. Accordingly, each of the plurality of toggle mechanisms 54d (plate-shaped portion 54f) is configured to slide integrally with the sleeve 54m.
  • the insertion portion 54a, the toggle mechanism 54d (sleeve 54m), and the wedge driving member 54k (sleeve 54l) are configured to be movable independently of each other along the central axis direction (Z direction). That is, each of the insertion portion 54a, the toggle mechanism 54d (sleeve 54m), and the wedge driving member 54k (sleeve 54l) can have different timings and amounts of movement.
  • each of the toggle mechanism 54d (sleeve 54m) and the wedge driving member 54k (sleeve 54l) is attached to the insertion portion 54a, it is moved along with the movement of the insertion portion 54a and the insertion portion 54a ( It is movable along the outer peripheral surface 54e of the cylindrical portion 154) independently of the movement of the insertion portion 54a.
  • the manufacturing apparatus 200 includes a movement restricting jig 260 that restricts the radially inward movement of the outer diameter side slot accommodating portion 11a.
  • the movement restriction jig 260 is arranged on the end surface 20a of the tooth 22, as shown in FIG. Specifically, the movement restricting jigs 260 are respectively arranged on the end surfaces 20a of the stator core 20 on both axial sides (see FIG. 22).
  • the movement restricting jig 260 restricts the radially inward movement of the outer diameter side slot accommodating portion 11a as shown in FIG. 36 and the outer diameter side as shown in FIGS. It is configured to switch between a non-restricted state in which the inward movement of the slot housing portion 11a is not regulated by being rotated.
  • the movement restricting jig 260 rotates about a rotation axis C2 along the radial direction, and also has a rod-shaped portion 261 extending in the radial direction (B direction) of the stator core 20, and as shown in FIG.
  • the rod-shaped portion 261 includes a regulating portion 262 provided at the tip portion 261a and regulating the radial movement of the outer diameter side slot accommodating portion 11a.
  • the movement restricting jig 260 includes a restricting jig body portion 263, a fastening member 264, and a rotating jig 265 (see FIG. 43).
  • the movement restricting jig 260 has a non-restricting state in which the restricting portion 262 projects outward in the axial direction of the stator core 20 (Z1 direction in FIGS. 37 and 38) when the rod-shaped portion 261 is rotated.
  • the part 262 is configured to be switched between a restricted state in which the part 262 protrudes to one side in the circumferential direction (A2 direction in FIGS. 35 and 36).
  • the rod-shaped portion 261 is formed in a columnar shape or a cylindrical shape extending in the radial direction of the stator core 20.
  • the diameter D1 of the rod-shaped portion 261 is equal to or smaller than the circumferential width W41 of the tooth 22.
  • the restriction portion 262 has a tapered shape in the protruding direction.
  • the thickness t1 (thickness of the thickest portion) of the restriction portion 262 is smaller than the diameter D1 of the rod-shaped portion 261.
  • the restriction portion 262 is formed in a flat plate shape as shown in FIG. 39.
  • the radial length L51 of the boundary portion (dotted line portion in FIG. 39) of the restriction portion 262 with the rod-shaped portion 261 is greater than the radial length L52 of the circumferential tip of the restriction portion 262. large.
  • the boundary portion is disposed inside the rod-shaped portion 261 of the regulation portion 262 and the first portion 262a that is a portion (exposed portion) of the regulation portion 262 that projects from the rod-shaped portion 261. It means a boundary with the second portion 262b, which is a portion that is formed.
  • restriction portion 262 is provided with a plurality of fastening holes 262c.
  • the fastening member 264 (see FIG. 36) is fastened to the fastening hole 262c via the rod-shaped portion 261 so that the rod-shaped portion 261 and the restriction portion 262 are fixed to each other.
  • the regulation jig body 263 includes a guide portion 263a, a rotation mechanism portion 263b, and a roller portion 263c.
  • the guide portion 263a is configured such that the rod-shaped portion 261 is rotatable and holds both sides in the circumferential direction and both sides in the axial direction of the rod-shaped portion 261.
  • the regulation jig body 263 is configured such that the rod-shaped portion 261 can be moved with respect to the regulation jig body 263 along the radial direction of the stator core 20 by a driving device (not shown). That is, the guide portion 263a has a function of guiding the rotation and the radial movement of the rod-shaped portion 261.
  • the regulation jig body 263 is configured to be movable in the radial direction with respect to the stator core 20 by a driving device (not shown).
  • the rotating mechanism portion 263b is formed in a substantially L shape when viewed in the radial direction.
  • the rotation mechanism portion 263b is connected to the rotation jig 265, and is interlocked with the rotation of the rotation jig 265 (rotation of the stator core 20 around the circumferential direction). The direction is changed (rotated).
  • the rotating mechanism portion 263b is fixed to the rod-shaped portion 261, and when the rotating mechanism portion 263b rotates in the H1 direction, the rod-shaped portion 261 interlocks and rotates in the H1 direction. That is, when the rotating jig 265 rotates in the A1 direction, the rod-shaped portion 261 rotates in the H1 direction (changes from the state of FIG.
  • the roller portion 263c is in contact with the rod-shaped portion 261, and the roller portion 263c is rotated to move (slide) the rod-shaped portion 261 in the radial direction. Has been done.
  • the restricting jig main body 263 is arranged in an annular shape as viewed in the axial direction, and is also adjacently arranged in the circumferential direction.
  • the regulation jig body 263 is provided for each tooth 22 of the stator core 20.
  • the rotating jig 265 is formed in an annular shape when viewed in the Z2 direction.
  • the rotating jigs 265 are arranged on both axial sides of the stator core 20, respectively.
  • the rotating jig 265 is configured to be rotated around the central axis C1 by a driving device (not shown). Then, the rotation of the rotation jig 265 is transmitted to all the rotation mechanism portions 263b arranged on one axial side of the stator core 20, so that the rotation mechanism portion 263b rotates about the rotation axis C2. All the rod-shaped parts 261 arranged on one axial side of the stator core 20 are rotated in unison.
  • the movement restricting jig 260 is rotated to move the coil restricting jig 260 to the stator core 20 in a state where the movement restricting jig 260 is switched from the non-restricted state to the restricted state. Then, the coil 10 is deformed by moving the stator core 20 in the circumferential direction.
  • the coil deforming device 50 the coil 10 deformed by the coil deforming device 50 in a state where the movement restricting jig 260 is switched from the restricted state to the non-restricted state by the rotation of the movement restricting jig 260.
  • the inner diameter side slot accommodating portion 11b is configured to be inserted into the slot 21 located at a position distant in the circumferential direction from the slot 21 in which the outer diameter side slot accommodating portion 11a is disposed.
  • FIG. 44 shows a flowchart relating to the manufacturing process of the stator 100.
  • 45 to 48 are flowcharts for explaining detailed manufacturing steps in each step.
  • step S10 the coil 10 is formed. Specifically, as shown in FIG. 45, steps S11, S12 and S13 are performed.
  • the coil 10 is formed by winding the conductive wire 10a around the winding core 211.
  • the conductive wire 10 a is wound a plurality of times around the winding frame formed by the winding core 211 and the two side plates 212.
  • the conductive wire 10a is wound around the winding core 211 in a state where the fixing sheet 34 is provided on the F1 direction side of the winding core 211 and the insulating sheet 30 to which the plurality of bent portions 31 are fixed is attached.
  • the coil 10 to which the insulating sheet 30 is attached is formed.
  • the core 211 and the side plate 212 are held by a core holding jig 213.
  • a coil holding jig 220 is attached to each of the plurality of coils 10 to hold the coil 10 to restrict deformation of at least a part of the coil 10. Specifically, as shown in FIG. 12, by holding the coil 10 so as to be sandwiched by the plate members 221 and 222 from both sides in the circumferential direction of the stator core 20, deformation of the coil 10 in the circumferential direction of the stator core 20 is restricted.
  • the coil holding jig 220 is attached.
  • the coil 10 is held by the coil holding jig 220 in a state where the plate members 221 and 222 are opened with the rotating shaft portion 223b of the connecting member 223 as a fulcrum (rotating shaft). Is located in.
  • the coil 10 has a coil holding jig so that the opening inside the winding of the coil 10 and the openings 221c and 222c of the coil holding jig 220 overlap in the F direction. 220.
  • the coil 10 is held so as to be sandwiched by the plate members 221 and 222 by closing the space between the plate members 221 and 222 with the turning shaft portion 223b of the connection member 223 as a fulcrum (rotating shaft).
  • the first portion 221a of the plate member 221 and the first portion 222a of the plate member 222 restrict the coil 10 from deforming so as to expand in the circumferential direction (F direction).
  • the second portion 221b of the plate member 221 and the second portion 222b of the plate member 222 restrict the coil 10 from deforming so as to expand in the radial direction (G direction).
  • the coil 10 is arranged on the coil holding jig 220 such that the winding core 211 provided inside the winding of the coil 10 is held through the openings 221c and 222c. It is performed with the coil 10 held by the lead holding jig 213. That is, the core holding jig 213 is not removed from the coil 10 from the time when the coil 10 is wound in step S11 to the time when the coil holding jig 220 is attached to the coil 10. This makes it possible to prevent the coil 10 from being deformed after the coil 10 is wound.
  • the core holding jig 213 is removed in the E1 direction or the F direction through the openings 221c and 222c. Further, the side plate 212 is taken out between the plate members 221 and 222 and the coil 10 in the E1 direction. Then, the winding core 211 is removed in the F direction via the openings 221c and 222c.
  • the coil holding jig 220 is attached to the coil 10 so that the insulating sheet 30 having the fixing portion 34 is sandwiched between the coil 10 and the coil holding jig 220 (plate member 222). ..
  • step S13 as shown in FIG. 49, the fixing portion 34 of the insulating sheet 30 is cut off. That is, with the coil holding jig 220 attached to the coil 10, the fixing portion cutting device 240 cuts the fixing portion 34. Specifically, first, as shown in FIG. 49A, the receiving member 244 of the fixed portion cutting device 240 is arranged on the F2 direction side of the coil 10 to which the coil holding jig 220 is attached.
  • the blade portion 241, the coil protection material 242, the clamp material 243, and the chip discharging material 245 face the coil 10 to which the coil holding jig 220 is attached.
  • the clamp material 243 and the receiving material 244 are located in the E1 direction side (E2) of the boundary portion 34a between the fixed portion 34 and the first coil end insulating portion 32a (second coil end insulating portion 32b). It is moved until it comes into contact with the receiving member 244 while sandwiching the vicinity of the (direction side). That is, as shown in FIG.
  • the coil protective material 242 is arranged inside the coil 10 and in the openings 221c and 222c of the plate members 221 and 222 of the coil holding jig 220.
  • FIGS. 49A and 49B describe an example in which the coil protection member 242 moves integrally with the blade 241, the clamp member 243, and the chip discharge member 245.
  • the present invention is not limited to this example, and the coil protection material 242 may be moved separately from the blade portion 241, the clamp material 243, and the chip discharge material 245.
  • the clamp material 243 is in contact with the receiving material 244 via the first coil end insulating portion 32a (second coil end insulating portion 32b).
  • the chip discharge material 245 and the blade portion 241 are integrally moved in the F2 direction with respect to the coil protection material 242.
  • the blade portion 241 passes through the boundary portion 34a between the fixing portion 34 and the first coil end insulating portion 32a (second coil end insulating portion 32b) of the insulating sheet 30, and cuts the boundary portion 34a.
  • the fixing portion 34 is cut off from the insulating sheet 30.
  • the cut fixed portion 34 is pushed toward the F2 direction by the chip discharging material 245, and the cut fixed portion 34 (chip) is discharged from the vicinity of the coil 10. Then, with the coil holding jig 220 attached to the coil 10, the coil 10 is removed from the fixed portion cutting device 240.
  • step S20 the outer diameter side slot accommodating portion 11a is arranged in the slot 21 (outer diameter side portion 21c). Specifically, as shown in FIG. 46, steps S21 to S26 are performed.
  • step S21 the stator core 20 is arranged radially outside the coil guide jig 51 of the coil deforming device 50. Specifically, as shown in FIG. 50, with the upper coupler 53 (see FIG. 22) removed from the plurality of coil guide jigs 51, the stator core 20 is arranged on the Z1 direction side of the coil guide jigs 51. Then, the stator core 20 and the coil guide jig 51 are combined by moving the stator core 20 in the Z2 direction with respect to the coil guide jig 51.
  • step S22 the slot insulating sheet 40 is placed in each slot 21 as shown in FIG.
  • the slot insulating sheet 40 is arranged on the Z1 direction side of the stator core 20, and the slot insulating sheet 40 is moved in the Z2 direction with respect to the stator core 20, so that the slot insulating sheet 40 is inserted into the slot 21.
  • the slot insulating portion 41 of the slot insulating sheet 40 is arranged in the slot 21, and the collar-shaped portion 42 of the slot insulating sheet 40 is projected outward from the end surface 20a of the tooth 22 in the axial direction (FIG. 41). ), the slot insulating sheet 40 is arranged in the slot 21.
  • step S23 the movement restricting jigs 260 are arranged on both sides of the stator core 20 in the axial direction. Specifically, after the movement restricting jig 260 is arranged on the outside in the radial direction of the stator core 20, the movement restricting jig 260 is moved to the inside in the radial direction (J1 direction in FIG. 50), whereby the movement restricting jig 260 is moved.
  • the jig 260 is arranged on the axial end surface 20 a of the stator core 20.
  • the movement restricting jig 260 is arranged on each of the end surfaces 20a of the teeth 22 provided on the stator core 20, as shown in FIG.
  • the movement restricting jig 260 is arranged on the end surface 20a of the tooth 22 in the axial direction of the stator core 20 in a non-regulating state. That is, the movement restricting jig 260 is arranged on the end surface 20 a of the tooth 22 in a non-regulating state in which the restricting portion 262 projects outward in the axial direction of the stator core 20. For example, with the restriction portion 262 in the non-restricted state, the movement restriction jig 260 is moved from the radially outer side of the stator core toward the radially inner side.
  • the movement restricting jig 260 is arranged such that the rod-shaped portion 261 of the movement restricting jig 260 is circumferentially adjacent to the collar-shaped portion 42 of the slot insulating sheet 40.
  • step S24 the outer diameter side slot accommodating portion 11a of the coil 10 to which the coil holding jig 220 is attached is placed in the slot 21, and the coil deforming device 50 (the coil guide jig 51) is connected to the coil holding jig 220.
  • the inner diameter side slot accommodating portion 11b of the coil 10 to which is attached is arranged. Specifically, as shown in FIG. 50, the coil 10 to which the coil holding jig 220 is attached is moved in the J2 direction (Z2 direction) with respect to the stator core 20, and the connecting member 223 is moved to the tip (Z2 direction side).
  • the outer diameter side slot accommodating portion 11 a is arranged in the slot 21.
  • the coil 10 to which the coil holding jig 220 is attached is inserted into the gap CL1 of the slot 21 and the coil deforming device 50.
  • the inner diameter side slot accommodating portion 11b is radially inner than the opening portion 21a of the slot 21 (inner diameter side portion 21b) that opens radially inward, and the opening of the slot 21 (inner diameter side portion 21b). It is arranged at a position facing the portion 21a in the radial direction.
  • the pressing position restricting member 232 that moves integrally with the jig pressing member 231 contacts the axial end surface 20a of the stator core 20 to restrict the movement of the jig pressing member 231 in the Z2 direction.
  • the axial position of the outer diameter side slot accommodating portion 11a in the slot 21 is regulated, and the axial position of the inner diameter side slot accommodating portion 11b in the coil guide jig 51 is regulated.
  • step S25 the coil holding jig 220 is removed from the coil 10. Specifically, as shown in FIG. 51, by holding the inside of the coil 10 by the coil position fixing jig 233, the coil holding jig 220 is moved to J3 with the axial position of the coil 10 fixed. The coil holding jig 220 is removed from the coil 10 by relatively moving in the direction (Z2 direction). Specifically, as shown in FIG. 50, the coil holding jig 220 is moved in the J3 direction from the state in which the coil 10 is held by the projecting portion 233b of the coil position fixing jig 233 on the Z2 direction side of the openings 221c and 222. By relatively moving the coil holding jig 220, the coil holding jig 220 is removed so that the protrusion 233b passes through the openings 221c and 222c in the Z direction.
  • step S26 the coil position fixing jig 233 is removed from the coil 10. Further, the jig pressing member 231 and the pressing position restricting member 232 are removed from the coil 10. Specifically, by moving the coil position fixing jig 233 in the A2 direction, the projecting portion 233b is removed from the inside of the winding of the coil 10. Then, the jig pressing member 231, the pressing position restricting member 232, and the coil position fixing jig 233 are moved with respect to the coil 10 in the J4 direction (Z1 direction), whereby the jig pressing member 231 and The pressing position restricting member 232 and the coil position fixing jig 233 are removed from the coil 10.
  • step S30 a step of deforming the coil 10 is performed. Specifically, as shown in FIG. 47, steps S31 to S33 are performed.
  • each of the plurality of movement restricting jigs 260 is switched from the non-restricted state (see FIG. 52) to the restricted state (FIGS. 53 and 54). That is, the outer diameter side slot accommodating portion 11a is in a state in which the movement inward in the radial direction is restricted.
  • 52 to 54 one coil 10 and one movement restricting jig 260 are illustrated for ease of explanation, but the coil 10 is arranged in each slot 21 and moved to each tooth 22.
  • a restriction jig 260 is arranged.
  • the movement restricting jig 260 is moved inward in the radial direction with respect to the opening 21a of the slot 21, and the rod-shaped portion 261 is rotated to thereby restrict the movement.
  • the state in which the portion 262 projects outward in the axial direction (Z1 direction) is switched to the state in which the restriction portion 262 projects in the A2 direction.
  • the restriction portion 262 is arranged in the opening 21a by moving the rod-shaped portion 261 of the movement restriction jig 260 in a state where the restriction portion 262 projects in the A2 direction to the outside in the radial direction. ..
  • the restriction portion 262 projects in the A2 direction to the outside in the radial direction.
  • each of the plurality of movement restricting jigs 260 is arranged in the opening 21a of the slot 21 adjacent to one side in the circumferential direction of the tooth 22 on which the movement restricting jigs 260 are arranged. .. That is, each of the plurality of movement restricting jigs 260 is in a state of restricting the radial movement of the outer diameter side slot accommodating portion 11a of the slot 21 adjacent to the A2 direction side.
  • step S32 the upper coupler 53 (see FIG. 22) is attached to the upper ends 51f (see FIG. 23) of the plurality of coil guide jigs 51.
  • each upper end portion 51f of each of the plurality of coil guide jigs 51 is fitted into a plurality of recesses 53a (see FIG. 25) provided circumferentially on the upper coupler 53 (flange member 53b).
  • the shaft 56 is fitted into the through hole 53h (see FIG. 25) of the cap member 53c and the through hole 53g (see FIG. 25) of the flange member 53b so that the rotational driving force can be transmitted.
  • the cap member 53c is fastened to the flange member 53b with a screw member or the like before the shaft 56 is fitted into the through hole 53h and the through hole 53g.
  • the convex portion 56b (see FIG. 27A) provided on the peripheral surface 56a of the shaft 56 has the circumference of the through hole 53h of the cap member 53c.
  • the recess 53i (see FIG. 27B) provided on the surface 53j
  • the recess 53k (see FIG. 26) provided on the peripheral surface 53l of the through hole 53g of the flange member 53b engaged, The shaft 56 is fitted into the through hole 53h and the through hole 53g.
  • step S33 the lower rotation drive device 52 (see FIG. 23) is operated with the inner diameter side slot housing portion 11b arranged in the gap CL1 and the outer diameter side slot housing portion 11a arranged in the slot 21. Is rotated. As a result, the lower coupler 55 (see FIG. 23) attached to the lower rotation drive device 52 is rotated. Since the concave portion 55d (see FIG. 29) provided on the peripheral surface 55c of the through hole 55a of the lower coupler 55 and the convex portion 56b (see FIG. 27(a)) of the shaft 56 are engaged with each other, As the lower coupler 55 rotates, the rotational driving force of the lower rotation drive device 52 is transmitted to the shaft 56 via the lower coupler 55. As a result, the rotational driving force transmitted to the shaft 56 via the lower coupler 55 is transmitted to the upper coupler 53 via the shaft 56.
  • each of the plurality of coil guide jigs receives the rotation driving force at both ends in the central axis direction.
  • each of the plurality of coil guide jigs 51 is rotated.
  • the inner diameter side slot accommodating portion 11b arranged in the gap CL1 between the coil guide jigs 51 is moved in the circumferential direction (see FIG. 55), and the coil 10 is deformed.
  • the distance between the outer diameter side slot accommodating portion 11a and the inner diameter side slot accommodating portion 11b becomes larger than before the deformation, and the bent portion 31 of the insulating sheet 30 is opened (FIGS. 8B and 8C). )reference).
  • step S40 a step of arranging the inner diameter side slot housing portion 11b and the wedge member 21e is performed. Specifically, steps S41 to S46 shown in FIG. 48 are performed.
  • step S41 as shown in FIG. 41, by rotating the rod-shaped portion 261, the regulation portion 262 is switched from the regulation state to the non-regulation state. Then, as shown in FIG. 23, the movement restricting jig 260 is retracted from the teeth 22 by moving the movement restricting jig 260 outward in the radial direction with respect to the slot 21 (teeth 22 ). That is, the movement restricting jig 260 (rod-shaped part 261) is moved in the R2 direction with the restricting portion 262 protruding in the Z1 direction.
  • step S42 the upper coupler 53 (see FIG. 22) attached to the upper end portion 51f of the coil guide jig 51 is removed. At this time, the lower coupler 55 and the shaft 56 are left without being removed.
  • step S43 the insertion portion 54a (see FIG. 23) is inserted into the stator core 20 from the upper end portion 51f side (Z1 direction side) of the coil guide jig 51. At this time, the insertion portion 54a is inserted inside the stator core 20 while inserting the shaft 56 into the insertion hole 54c of the insertion portion 54a.
  • the pressing portion 54b (see FIG. 23) is pressed from the radially inner side to the radially outer side by the insertion portion 54a (wing portion 254, see FIG. 23) and moves to the radially outer side.
  • the inner diameter side slot accommodating portion 11b arranged on the radially outer side of the pressing portion 54b is pressed by the pressing portion 54b from the radially inner side to the radially outer side.
  • the inner diameter side slot accommodating portion 11b moves into the slot 21 (see FIG. 55) located at a position circumferentially separated from the slot 21 in which the outer diameter side slot accommodating portion 11a is disposed (inserted from the radial inner side). ) Will be done.
  • the wedge holding member 57 (see FIG. 24, etc.) is moved to the radially outer side of the slot 21 while being sandwiched between the pressing portion 54b and the inner diameter side slot accommodating portion 11b. That is, by moving the pressing portion 54b toward the radially outer slot 21 side, the pressing force of the pressing portion 54b is transmitted to the inner diameter side slot accommodating portion 11b via the wedge holding member 57. As a result, the inner diameter side slot accommodating portion 11b is pushed into the slot 21 from the radially inner side to the radially outer side.
  • the inner diameter side slot accommodating portion 11b is pressed from the radially inner side to the radially outer side by a portion 57d of the wedge holding member 57 other than the portion 57c at which the wedge member 21e is held. That is, at this time, in a state where the wedge member 21e protrudes upward (Z1 direction side) from the stator core 20 in the central axis direction (see FIG. 56), the inner diameter side slot accommodating portion 11b is pressed by the wedge holding member 57. Done.
  • step S44 the toggle mechanism 54d and the sleeve 54m (see FIG. 23) are moved in the central axis direction (Z2 direction side) (independently of the insertion portion 54a and the wedge driving member 54k). Then, the pair of second portions 54i of the toggle 54g come into contact with the guide main body portion 51c, so that the pair of second portions 54i (see FIG. 33) sandwiched between the plate-shaped portion 54f and the guide main body portion 51c are radial. Are rotated to open each other. As a result, the coil end portion 12 protruding from the stator core 20 toward the Z1 direction side is pressed from the radially inner side to the radially outer side by one of the pair of second portions 54i.
  • step S45 while the coil end portion 12 is pressed by the toggle mechanism 54d, the wedge driving member 54k and the sleeve 54l (see FIG. 23) move in the central axis direction (Z2 direction side) (insertion portion 54a and It slides (independently of the toggle mechanism 54d).
  • the wedge driving member 54k is moved in a state where the lower end of the wedge driving member 54k is in contact with the upper end of the wedge holding member 57, whereby the wedge holding member 57 is moved upward by the wedge driving member 54k (Z1 direction side). Is pressed from. As a result, the wedge holding member 57 is moved downward (Z2 direction side) (see FIG. 57).
  • the wedge holding member 57 is moved to the lower side (Z2 direction side) while being guided by the coil guide jig 51 through the gap CL1 between the coil guide jigs 51.
  • the wedge member 21e held by the wedge holding member 57 is inserted from the upper side (Z1 direction side) into the opening 21a (groove 21d) (see FIG. 3) by the movement of the wedge holding member 57.
  • the wedge holding member 57 is moved with the inner diameter side slot accommodating portion 11b being pressed via the wedge holding member 57.
  • step S46 the insertion portion 54a is extracted to the upper side (Z1 direction side) (see FIG. 58).
  • the pressing of the pressing portion 54b via the wedge holding member 57 to the inner diameter side slot accommodating portion 11b is released.
  • the wedge holding member 57 is pulled out from the lower side.
  • each jig is removed from the stator 100, and the stator 100 is completed.
  • the rotor 101 is arranged inside the stator 100 in the radial direction, and the rotary electric machine 102 is manufactured.
  • the one slot accommodating portion (11a) is disposed. It is possible to prevent the coil (10) and the stator core (20) from mechanically interfering with each other when arranging (1) in the slot (21, 21c).
  • the coil holding jig (220) includes two plate members (221, 222), and in the step (S12) of attaching the coil holding jig (220), the coil (10) is attached to the stator core.
  • a coil holding jig (220) that restricts the deformation of the coil (10) in the circumferential direction of the stator core (20) by holding the two plate members (221, 222) from both sides in the circumferential direction of the (20). Is a step of attaching (S12).
  • the deformation of the coil (10) in the circumferential direction can be restricted. Therefore, when the coil (10) is inserted into the slot (21), the teeth adjacent to the slot (21) in the circumferential direction. It is possible to prevent the coil (10) from mechanically interfering with (22).
  • the coil holding jig (220) has two plate members (221, 222) which are axially one end (221d, 222d) of each of the two plate members (221, 222).
  • the coil (10) is located on one side of the stator core (20) in the axial direction of the stator core (20).
  • the two plate members (221, 222) are not connected to each other and the two plate members (221, 222) hold the coil (10) as compared with the case where the two plate members (221, 222) hold the coil (10). It is possible to easily regulate the relative position between the two (221, 222). Then, by inserting the slot accommodation portion (11a) into the first slot (21, 21c) with the connection portion (223) as a tip, the connection portion (223) having a constant size is accommodated in the slot accommodation portion (11). The slot (21) can be entered in advance. As a result, mechanical interference between the coil holding jig (220) (two plate members (221, 222)) and the stator core (20) can be prevented.
  • step (S12) of attaching the coil holding jig (220 a state in which the space between the two plate members (221, 222) is opened with the connecting portion (223) as the fulcrum (223b). Then, the coil (10) is placed on the coil holding jig (220), and the coil (10) is placed in the two plate members (221, 222) with the space between the two plate members (221, 222) being closed. It is a step (S12) of holding so as to be sandwiched by. According to this structure, the gap between the two plate members (221, 222) is increased by opening the two plate members (221, 222), so that the coil ( 10) can be arranged between two plate members (221, 222).
  • the coil (10) can be easily connected to the two coils (10). It can be sandwiched by the plate members (221, 222).
  • the coil holding jig (220) is provided with the opening portions (221c, 222c) that open to the other axial side of the stator core (20), and the coil (10) includes the conductive wire ( 10a) is formed by winding, and in the step of attaching the coil holding jig (220) (S12), the winding provided inside the winding of the coil (10) through the openings (221c, 222c). It is a step (S12) of attaching the coil holding jig (220) while holding the coil (10) by the winding core holding jig (213) holding the core (211).
  • the coil holding jig (213) is not removed from the coil (10) after the coil (10) is formed on the coil (10). 220) can be attached. Accordingly, after the coil (10) is formed on the winding core (211), the winding core holding jig (213) is once removed from the coil (10), and there is a period in which the coil (10) is not held. Unlike the case, the deformation of the coil (10) can be regulated more effectively.
  • the coil holding is performed so that the insulating member (30) is sandwiched between the coil (10) and the coil holding jig (220). It is a step (S12) of attaching the jig (220) to the coil (10).
  • the coil (10) is arranged. It is possible to prevent the insulating member (30) and the teeth (22) from mechanically interfering with each other when arranging them in the slot (21).
  • the coil pressing jig (220) is moved to one side in the axial direction of the stator core (20) by the jig pressing member (231).
  • the slot holding portion (11a) of one side of the coil (10) to which the coil holding jig (220) is attached can be easily inserted into the slot (21). ) Can be inserted.
  • the coil pressing jig (220) is moved to one side in the axial direction of the stator core (20) by the jig pressing member (231).
  • the slot core (11a) on one side is inserted into the first slot (21, 21c) by being pressed against and the pressing position regulating member (232) that moves integrally with the jig pressing member (231) is provided on the stator core.
  • the first slot ( 21, 21c) is a step (S24) of regulating the axial position.
  • the axial position of the first slot (21, 21c) of the one slot accommodating portion (11a) can be regulated by using the pressing position regulating member (232).
  • the slot accommodating portion (11a) can be arranged at an appropriate axial position in the first slot (21, 21c).
  • the coil (10) is formed by winding the conductive wire (10a), and the step (S25) of removing the coil holding jig (220) is performed inside the coil (10). Is held by the coil position fixing jig (233), so that the coil holding jig (220) is positioned relative to the stator core (20) on one side in the axial direction with the axial position of the coil (10) fixed. This is a step (S25) of removing the coil holding jig (220) by moving it. According to this structure, when the coil holding jig (220) is removed, it is possible to prevent the coil holding jig (220) from being detached from the stator core (20) together with the coil (10).
  • the coil holding jig (220) is provided with the openings (221c, 222c) that open to the other axial side of the stator core (20), and the coil holding jig (220) is removed.
  • the coil holding jig (220) is held from the state where the coil (10) is held by the coil position fixing jig (233) on one axial side of the stator core (20) with respect to the openings (221c, 222c).
  • the method further includes a step (S30) of deforming the coil (10) by moving the stator core (20) in the circumferential direction with respect to (11a).
  • a step (S30) of deforming the coil (10) by moving the stator core (20) in the circumferential direction with respect to (11a).
  • the manufacturing apparatus of the above embodiment can obtain the following effects.
  • the coil holding jig (220) includes two plate members (221, 222) that hold the coil (10) so as to sandwich the coil from both sides in the circumferential direction of the stator core (20).
  • the deformation of the coil (10) in the circumferential direction can be regulated by the two plate members (221, 222). Therefore, when the coil (10) is inserted into the slot (21), It is possible to prevent the coil (10) from mechanically interfering with the teeth (22) circumferentially adjacent to the (21).
  • the coil holding jig (220) is a connection for connecting the two plate members (221, 222) in the vicinity of the respective end portions (221c, 222c) of the two plate members (221, 222).
  • the part (223) is included.
  • the two plate members (221, 222) are not connected to each other and the two plate members (221, 222) hold the coil (10) as compared with the case where the two plate members (221, 222) hold the coil (10). It is possible to easily regulate the relative position between the two (221, 222).
  • At least one of the two plate members (221, 222) is provided with the opening (221c, 222c) that opens in the axial direction of the stator core (20), and thus the stator core (20). It is formed to have a U-shape when viewed from the circumferential direction.
  • another jig core holding jig (213) or other jig is inserted through the openings (221c, 222c).
  • a coil position fixing jig (233) or the like can be attached to or detached from the coil (10). Therefore, since it is not necessary to remove the coil holding jig (220) from the coil (10) when attaching or detaching another jig, the deformation of the coil (10) can be more effectively regulated.
  • the opening of the slot is provided on the inner side in the radial direction and the stator is formed so as to form a part of the inner rotor type rotating electric machine, but the present invention is not limited to this. Absent.
  • the openings of the slots may be provided on the outer side in the radial direction, and the stator may be formed so as to form a part of the outer rotor type rotating electrical machine.
  • the present invention is not limited to this.
  • the coil to which the coil holding jig is attached may be arranged in the slot from the radially inner side through the opening of the slot.
  • the present invention is not limited to this.
  • the coil after inserting the coil with the coil holding jig into the coil guide jig, the coil may be placed in the slot, or after inserting the coil into the slot, the coil may be placed in the coil guide jig. You may.
  • the coil holding jig may be configured as a single member (for example, a box-shaped member that holds the coil), or the coil holding jig may be configured by three or more plate members.
  • first portion and the second portion are provided on each of the two plate members
  • the present invention is not limited to this.
  • one or both of the two plate members may be composed of only the first portion.
  • the connecting member may be configured as a fastening member that fastens the two plate members, or the connecting member may be configured as a joining member for joining the two plate members.
  • the coil holding jig is attached to the coil so that the insulating sheet is sandwiched between the coil and the coil holding jig, but the present invention is not limited to this.
  • the coil holding jig can be attached to the coil without sandwiching the insulating sheet between the coil and the coil holding jig. Good.
  • both of the two plate members are formed so as to have a U shape when viewed from the circumferential direction of the stator core
  • the present invention is not limited to this.
  • only one of the two plate members may be formed to have a U shape when viewed from the circumferential direction of the stator core.
  • the present invention is not limited to this.
  • the stator core may be moved in the circumferential direction with respect to the coil guide jig, or both the coil guide jig and the stator core may be moved in the circumferential direction relatively.

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

Abstract

This stator manufacturing method is provided with: a step for attaching a coil holding jig on each of a plurality of coils; a step for arranging one slot accommodating part in a first slot; a step for detaching the coil holding jig from the coils; and a step for inserting the other slot accommodating part into a second slot positioned at a position circumferentially away from the first slot.

Description

ステータの製造方法およびステータの製造装置Stator manufacturing method and stator manufacturing apparatus
　本発明は、ステータの製造方法およびステータの製造装置に関する。 The present invention relates to a stator manufacturing method and a stator manufacturing apparatus.
　従来、一対のスロット収容部を含むコイルを備えるステータの製造方法およびステータの製造装置が知られている。このようなステータの製造方法は、たとえば、特開２０１８－１７０８８１号公報に開示されている。 Conventionally, a stator manufacturing method and a stator manufacturing apparatus that include a coil including a pair of slot accommodating portions are known. A method of manufacturing such a stator is disclosed in, for example, Japanese Patent Laid-Open No. 2018-170881.
　上記特開２０１８－１７０８８１号公報には、内径側スロット収容部と外径側スロット収容部とを含むコイルを備えるステータの製造方法が開示されている。このステータの製造方法では、まず、丸線が複数回巻回されることにより、コイルが形成される。次に、ステータコアの径方向内側に配置されたコイルガイド治具に、コイルのうちの内径側スロット収容部が配置される。そして、ステータコアをコイルガイド治具に対して軸線方向に移動させることによって、ステータコアとコイルガイド治具とが組み合わされるとともに、ステータコアのスロットに、コイルのうちの外径側スロット収容部が配置される。そして、ステータコアに対してコイルガイド治具が周方向に移動される。具体的には、外径側スロット収容部が配置されたスロットに対して、内径側スロット収容部が、所定の数のスロットの分、周方向にずらされるように、コイルガイド治具がステータコアに対して周方向に移動される。これにより、コイルが変形される。その後、コイルガイド治具に配置された内径側スロット収容部が、径方向外側に移動されて、内径側スロット収容部がスロットに収容される。 The above-mentioned Japanese Unexamined Patent Application Publication No. 2018-170881 discloses a method of manufacturing a stator including a coil including an inner diameter side slot accommodating portion and an outer diameter side slot accommodating portion. In this stator manufacturing method, first, a coil is formed by winding a round wire a plurality of times. Next, the inner diameter side slot accommodating portion of the coil is arranged in the coil guide jig arranged inside the stator core in the radial direction. Then, by moving the stator core in the axial direction with respect to the coil guide jig, the stator core and the coil guide jig are combined, and the outer diameter side slot accommodating portion of the coil is arranged in the slot of the stator core. .. Then, the coil guide jig is moved in the circumferential direction with respect to the stator core. Specifically, the coil guide jig is fixed to the stator core so that the inner diameter side slot accommodating portion is displaced in the circumferential direction by a predetermined number of slots with respect to the slot in which the outer diameter side slot accommodating portion is arranged. It is moved in the circumferential direction. As a result, the coil is deformed. After that, the inner diameter side slot accommodating portion arranged in the coil guide jig is moved outward in the radial direction, and the inner diameter side slot accommodating portion is accommodated in the slot.
特開２０１８－１７０８８１号公報Japanese Patent Laid-Open No. 2018-170881
　ここで、上記特開２０１８－１７０８８１号公報に記載のステータの製造方法において、コイルの占積率（スロットに対する導線の密度）を向上させるために、比較的強い力で丸線を成形しながら巻回することによりコイルを形成した場合には、形成されたコイルにおいて、コイルの外形寸法が大きくなる方向に力が生じる。このため、コイルを形成した時点から、外径側スロット収容部をスロットに配置する時点までに、コイルの外形寸法が大きくなると考えられる。この場合、コイルの外形寸法が大きくなることにより、外径側スロット収容部をスロットに配置する際に、コイルとステータコアとが機械的に干渉してしまう場合があると考えられる。そこで、従来、スロット収容部をスロットに配置する際に、コイルとステータコアとが機械的に干渉するのを防止することが可能なステータの製造方法およびステータの製造装置が望まれていた。 Here, in the stator manufacturing method described in Japanese Unexamined Patent Application Publication No. 2018-170881, in order to improve the space factor of the coil (density of the lead wire with respect to the slot), the round wire is wound with relatively strong force. When the coil is formed by turning, a force is generated in the formed coil in a direction in which the outer dimension of the coil increases. Therefore, it is considered that the outer dimension of the coil increases from the time when the coil is formed to the time when the outer diameter side slot accommodating portion is arranged in the slot. In this case, it is conceivable that the coil and the stator core may mechanically interfere with each other when the outer diameter side slot accommodating portion is arranged in the slot due to the large outer dimension of the coil. Therefore, conventionally, there has been a demand for a stator manufacturing method and a stator manufacturing apparatus capable of preventing mechanical interference between the coil and the stator core when the slot housing portion is arranged in the slot.
　この発明は、上記のような課題を解決するためになされたものであり、この発明の１つの目的は、スロット収容部をスロットに配置する際に、コイルとステータコアとが機械的に干渉するのを防止することが可能なステータの製造方法およびステータの製造装置を提供することである。 The present invention has been made to solve the above problems, and an object of the present invention is to mechanically interfere with a coil and a stator core when a slot housing portion is arranged in a slot. To provide a stator manufacturing method and a stator manufacturing apparatus capable of preventing the above.
　上記目的を達成するために、この発明の第１の局面におけるステータの製造方法は、複数のティースと、周方向に隣り合う夫々のティースの間に形成される複数のスロットとを備えるステータコアと、互いに異なるスロットに収容される一対のスロット収容部を含むコイルとを備えるステータの製造方法であって、複数のコイルの各々に、コイルを保持することによりコイルの少なくとも一部の変形を規制するコイル保持治具を取り付ける工程と、コイル保持治具を取り付ける工程の後、コイル保持治具が取り付けられたコイルの一対のスロット収容部のうちの一方のスロット収容部を、複数のスロットのうちの１つである第１スロットに配置する工程と、一方のスロット収容部を配置する工程の後、コイル保持治具をコイルから取り外す工程と、コイル保持治具を取り外す工程の後、一対のスロット収容部のうちの他方のスロット収容部を、第１スロットから周方向に離れた位置に位置する第２スロットに挿入する工程とを備える。 In order to achieve the above object, a method of manufacturing a stator according to a first aspect of the present invention includes a stator core including a plurality of teeth and a plurality of slots formed between the teeth adjacent to each other in the circumferential direction, A method for manufacturing a stator, comprising: a coil including a pair of slot accommodating portions accommodated in mutually different slots, wherein a coil is held in each of a plurality of coils to restrict deformation of at least a part of the coil. After the step of attaching the holding jig and the step of attaching the coil holding jig, one of the slot receiving portions of the pair of slot receiving portions of the coil to which the coil holding jig is attached is set to one of the plurality of slots. Pair of slot accommodating portions after the step of disposing the coil retaining jig from the coil, after the step of disposing the first slot And inserting the other slot accommodation part of the other slot into the second slot located at a position distant from the first slot in the circumferential direction.
　この発明の第１の局面によるステータの製造方法では、上記のように、複数のコイルの各々に、コイルを保持することによりコイルの少なくとも一部の変形を規制するコイル保持治具を取り付ける工程と、コイル保持治具が取り付けられた一方のスロット収容部を、第１スロットに配置する工程とを備える。これにより、コイルのスロットに対する占積率を向上させた場合でも、コイル保持治具によりコイルの少なくとも一部の変形を規制するので、コイルの外形寸法が大きくなるのを防止することができる。そして、コイルの外形寸法が大きくなるのを防止しながら、一方のスロット収容部を第１スロットに配置することができるので、一方のスロット収容部を第１スロットに配置する際に、コイルとステータコアとが機械的に干渉するのを防止することができる。 In the stator manufacturing method according to the first aspect of the present invention, as described above, a step of attaching a coil holding jig that holds at least one coil to restrict deformation of at least a part of the coil, in each of the plurality of coils. And arranging the one slot accommodating portion to which the coil holding jig is attached in the first slot. Thus, even when the space factor of the coil in the slot is improved, the coil holding jig restricts the deformation of at least a part of the coil, so that the outer dimension of the coil can be prevented from increasing. Then, since it is possible to arrange one of the slot accommodating portions in the first slot while preventing the outer dimension of the coil from increasing, when disposing the one of the slot accommodating portions in the first slot, the coil and the stator core can be arranged. It is possible to prevent mechanical interference between and.
　この発明の第２の局面におけるステータの製造装置は、複数のティースと、周方向に隣り合う夫々のティースの間に形成される複数のスロットとを備えるステータコアと、互いに異なるスロットに収容される一対のスロット収容部を含むコイルとを備えるステータの製造装置であって、複数のコイルの各々に、コイルを保持することによりコイルの少なくとも一部の変形を規制するコイル保持治具と、コイル保持治具が取り付けられたコイルの一対のスロット収容部のうちの一方のスロット収容部を、複数のスロットのうちの１つである第１スロットに配置する第１コイル配置部と、コイル保持治具が取り外された状態で、一対のスロット収容部のうちの他方のスロット収容部を、一方のスロット収容部が配置された第１スロットから周方向に離れた位置に位置する第２スロットに挿入する第２コイル配置部とを備える。 A stator manufacturing device according to a second aspect of the present invention includes a stator core including a plurality of teeth and a plurality of slots formed between teeth that are circumferentially adjacent to each other, and a pair of the cores accommodated in different slots. A device for manufacturing a stator, comprising: a coil including a slot accommodating portion, and a coil holding jig that holds the coil in each of the plurality of coils to restrict deformation of at least a part of the coil; and a coil holding jig. And a coil holding jig for arranging one slot accommodating portion of the pair of slot accommodating portions of the coil to which the tool is attached in a first slot, which is one of the plurality of slots. In the state of being removed, the other slot accommodating portion of the pair of slot accommodating portions is inserted into the second slot located at a position circumferentially separated from the first slot in which the one slot accommodating portion is disposed. 2 coil arrangement|positioning parts are provided.
　この発明の第２の局面によるステータの製造装置では、上記のように構成することにより、上記第１の局面によるステータの製造方法と同様に、スロット収容部をスロットに配置する際に、コイルとステータコアとが機械的に干渉するのを防止することが可能なステータの製造装置を提供することができる。 With the stator manufacturing apparatus according to the second aspect of the present invention, by configuring as described above, when the slot accommodating portion is arranged in the slot, a coil is formed in the same manner as in the stator manufacturing method according to the first aspect. It is possible to provide a stator manufacturing device capable of preventing mechanical interference with the stator core.
　本発明によれば、上記のように、スロット収容部をスロットに配置する際に、コイルとステータコアとが機械的に干渉するのを防止することができる。 According to the present invention, as described above, it is possible to prevent mechanical interference between the coil and the stator core when the slot housing portion is arranged in the slot.
一実施形態によるステータ（回転電機）の平面図である。It is a top view of a stator (rotary electric machine) by one embodiment. 一実施形態によるステータの一部の断面図である。FIG. 6 is a cross-sectional view of a portion of a stator according to one embodiment. 一実施形態によるステータのスロットの構成を示す図である。It is a figure which shows the structure of the slot of the stator by one Embodiment. 一実施形態によるコイルを示す側面図ある。FIG. 3 is a side view showing a coil according to one embodiment. 一実施形態によるコイルと絶縁シートとの配置関係を説明するための模式図である。It is a schematic diagram for demonstrating the arrangement|positioning relationship of the coil and insulating sheet by one Embodiment. 一実施形態による絶縁シートの構成（ステータの製造時）を示す図である。It is a figure showing composition (at the time of manufacture of a stator) of an insulating sheet by one embodiment. 一実施形態による絶縁シートの構成（ステータ完成時）を示す図である。It is a figure showing composition (at the time of stator completion) of an insulating sheet by one embodiment. 一実施形態による絶縁シートの折り曲げ部の構成を示す図であり、図８Ａは、折り曲げ部が開放する前の状態、図８Ｂは、折り曲げ部が開放途中の状態、図８Ｃは、折り曲げ部が開放した状態を示す図である。It is a figure which shows the structure of the bending part of the insulating sheet by one Embodiment, FIG. 8A is a state before a bending part opens, FIG. 8B is a state in which a bending part is opening, FIG. It is a figure which shows the state which was done. 一実施形態によるスロット絶縁シートの襟状部の構成を示す断面図である。FIG. 6 is a cross-sectional view showing a configuration of a collar portion of a slot insulating sheet according to an embodiment. 一実施形態によるコイル形成部の構成を示す側面図である。It is a side view showing the composition of the coil formation part by one embodiment. 一実施形態によるコイル形成部の構成を示す断面図である。It is a sectional view showing composition of a coil formation part by one embodiment. 一実施形態によるコイル保持治具の構成を示す断面図である。It is a sectional view showing composition of a coil holding jig by one embodiment. 一実施形態によるコイル保持治具の構成を示す側面図である。It is a side view which shows the structure of the coil holding jig by one Embodiment. 一実施形態によるコイル保持治具の接続部材の構成を示す図である。It is a figure which shows the structure of the connection member of the coil holding jig by one Embodiment. 一実施形態によるコイル保持治具の開放した状態を説明するための図であり、図１５Ａは、Ｇ１方向に見た図であり、図１５Ｂは、Ｆ２方向に見た図である。FIG. 15A is a diagram for explaining an open state of the coil holding jig according to the embodiment, FIG. 15A is a diagram viewed in the G1 direction, and FIG. 15B is a diagram viewed in the F2 direction. 一実施形態による第１コイル配置部の構成を示す側面図である。It is a side view which shows the structure of the 1st coil arrangement|positioning part by one Embodiment. 一実施形態による第１コイル配置部の構成を示す断面図である。It is sectional drawing which shows the structure of the 1st coil arrangement|positioning part by one Embodiment. 一実施形態による第１コイル配置部の治具押圧部材および押圧位置規制部材の構成を示す図であり、図１８Ａは、周方向に見た図であり、図１８Ｂは、径方向に見た図である。It is a figure which shows the structure of the jig pressing member and pressing position regulation member of the 1st coil arrangement|positioning part by one Embodiment, FIG. 18A is the figure seen in the circumferential direction, and FIG. 18B is the figure seen in the radial direction. Is. 一実施形態による第１コイル配置部のコイル位置固定治具の構成を示す図であり、図１９Ａは、周方向に見た図であり、図１９Ｂは、径方向に見た図である。It is a figure which shows the structure of the coil position fixing jig of the 1st coil arrangement|positioning part by one Embodiment, FIG. 19A is the figure seen in the circumferential direction, and FIG. 19B is the figure seen in the radial direction. 一実施形態による固定部切除装置の構成をＧ１方向に見た図であり、図２１の４００－４００線に沿った断面図である。FIG. 22 is a view of the configuration of the fixed part cutting device according to one embodiment, viewed in the G1 direction, and is a cross-sectional view taken along the line 400-400 in FIG. 21. 一実施形態による固定部切除装置の構成をＦ２方向に見た図である。It is the figure which looked at the composition of the fixed part cutting device by one embodiment in the F2 direction. 一実施形態によるステータの製造装置において上側カプラが取り付けられた状態の側面図である。FIG. 5 is a side view of the stator manufacturing apparatus according to the embodiment with an upper coupler attached thereto. 一実施形態によるステータの製造装置において挿入部が挿入されている状態の側面図である。FIG. 6 is a side view of the stator manufacturing apparatus according to the embodiment with an insertion portion inserted therein. 一実施形態によるコイルガイド治具を示す部分平面図である。It is a partial top view which shows the coil guide jig by one Embodiment. 一実施形態による上側カプラを示す側面図である。FIG. 6 is a side view showing an upper coupler according to one embodiment. 一実施形態による上側カプラの平面的な部分断面図である。FIG. 6 is a partial plan view of an upper coupler according to one embodiment. 一実施形態によるステータの製造装置のシャフトおよび上側カプラの平面図であり、図２７Ａは、シャフトの平面図であり、図２７Ｂは、上側カプラの平面図である。27A is a plan view of a shaft and an upper coupler of a manufacturing apparatus of a stator according to an embodiment, FIG. 27A is a plan view of a shaft, and FIG. 27B is a plan view of an upper coupler. 一実施形態による下側カプラを示す側面図である。FIG. 6 is a side view showing a lower coupler according to an embodiment. 一実施形態による下側カプラの平面図である。FIG. 6 is a plan view of a lower coupler according to one embodiment. 一実施形態による挿入部の平面図である。FIG. 6 is a plan view of an insertion portion according to one embodiment. 一実施形態によるウェッジ保持部材の側面図である。FIG. 6 is a side view of the wedge holding member according to the embodiment. 一実施形態によるウェッジ保持部材の正面図である。FIG. 6 is a front view of the wedge holding member according to the embodiment. 一実施形態によるトグル機構の斜視図である。FIG. 6 is a perspective view of a toggle mechanism according to one embodiment. 一実施形態によるステータの製造装置においてトグル機構によりコイルエンド部が押圧されている状態の側面図である。FIG. 6 is a side view showing a state where the coil end portion is pressed by the toggle mechanism in the stator manufacturing device according to the embodiment. 一実施形態による移動規制治具（規制状態）の構成を周方向に見た図である。It is the figure which looked at the composition of the movement regulation jig (regulation state) by one embodiment in the peripheral direction. 一実施形態による移動規制治具（規制状態）の構成を軸方向に見た図である。It is the figure which looked at the composition of the movement control jig (regulation state) by one embodiment in the direction of an axis. 一実施形態による移動規制治具（非規制状態）の構成を周方向に見た図である。It is the figure which looked at the composition of the movement control jig (non-regulation state) by one embodiment in the peripheral direction. 一実施形態による移動規制治具（非規制状態）の構成を軸方向に見た図である。It is the figure which looked at the composition of the movement control jig (non-regulation state) by one embodiment in the direction of an axis. 一実施形態による移動規制治具の規制部の構成を示す図である。It is a figure showing composition of a regulation part of a movement regulation jig by one embodiment. 一実施形態による移動規制治具（規制状態）の構成を径方向内側から見た図である。It is the figure which looked at the composition of the movement control jig (regulation state) by one embodiment from the radial inside. 一実施形態による移動規制治具（非規制状態）の構成を径方向内側から見た図である。It is the figure which looked at the composition of the movement control jig (non-regulation state) by one embodiment from the radial inside. 一実施形態による移動規制治具の回動機構部の構成を模式的に示した図であり、図４２Ａは、Ｈ２方向に回動された状態、図４２Ａは、Ｈ１方向に回動された状態を示した図である。FIG. 42A is a diagram schematically showing a configuration of a rotation mechanism portion of a movement restricting jig according to one embodiment, FIG. 42A is a state rotated in an H2 direction, and FIG. 42A is a state rotated in an H1 direction. It is the figure which showed. 一実施形態による移動規制治具の回動用治具の構成を軸方向に見た図である。It is the figure which looked at the composition of the jig for rotation of the movement control jig by one embodiment in the direction of an axis. 一実施形態によるステータの製造工程を説明するためのフロー図である。FIG. 6 is a flowchart for explaining a manufacturing process of the stator according to the embodiment. 一実施形態によるコイル形成工程を説明するためのフロー図である。It is a flow figure for explaining a coil formation process by one embodiment. 一実施形態による外径側スロット収容部配置工程を説明するためのフロー図である。It is a flow figure for explaining the outside diameter side slot accommodation part arrangement process by one embodiment. 一実施形態によるコイル変形工程を説明するためのフロー図である。It is a flow figure for explaining the coil modification process by one embodiment. 一実施形態による内径側スロット収容部およびウェッジ部材配置工程を説明するためのフロー図である。FIG. 9 is a flowchart for explaining an inner diameter side slot accommodating portion and a wedge member arranging step according to an embodiment. 一実施形態による固定部を切除する工程を説明するための図であり、図４９Ａは、工程初期、図４９Ｂは、工程中期、図４９Ｃは、工程後期を示す図である。FIG. 49A is a diagram for explaining a step of cutting the fixing portion according to the embodiment, FIG. 49A is a step initial stage, FIG. 49B is a step intermediate stage, and FIG. 49C is a step late stage. 一実施形態によるコイルをスロットおよびコイルガイド治具に配置する工程を説明するための図である。It is a figure for demonstrating the process of arrange|positioning the coil by one Embodiment in a slot and a coil guide jig. 一実施形態によるコイル保持治具をコイルから取り外す工程を説明するための図である。It is a figure for demonstrating the process of removing the coil holding jig from a coil by one Embodiment. 一実施形態による移動規制治具をティースに配置する工程を説明するための図である。It is a figure for demonstrating the process of arranging the movement control jig by one embodiment on teeth. 一実施形態による移動規制治具を非規制状態から規制状態に切り替える様子を説明するための図である。It is a figure for explaining a mode that a movement control jig by one embodiment is changed from a non-regulation state to a regulation state. 一実施形態による移動規制治具による外径側スロット収容部の径方向内側への移動が規制される状態を説明するための図である。FIG. 8 is a diagram for explaining a state in which movement of the outer diameter side slot accommodating portion inward in the radial direction is restricted by the movement restricting jig according to the embodiment. 一実施形態によるコイルを変形する工程およびコイルを挿入する工程を説明するための図である。It is a figure for demonstrating the process of deforming a coil and the process of inserting a coil by one Embodiment. 一実施形態によるステータの製造方法においてウェッジ保持部材を介して内径側スロット収容部が押圧されている状態の側面図である。FIG. 6 is a side view showing a state where the inner diameter side slot accommodating portion is pressed via a wedge holding member in the stator manufacturing method according to the embodiment. 一実施形態によるステータの製造方法においてウェッジ打ち込み部材の押圧によってウェッジ保持部材が移動された状態の断面図である。FIG. 6 is a cross-sectional view showing a state in which the wedge holding member is moved by pressing the wedge driving member in the stator manufacturing method according to the embodiment. 一実施形態によるステータの製造方法において挿入部が抜き出された状態の側面図である。FIG. 6 is a side view of a state in which an insertion portion is extracted in the method of manufacturing the stator according to the embodiment.
　以下、本発明の一実施形態を図面に基づいて説明する。 An embodiment of the present invention will be described below with reference to the drawings.
　［ステータの構造］
　図１～図９を参照して、本実施形態によるステータ１００について説明する。ステータ１００は、回転電機１０２の一部を構成する。また、ステータ１００は、ロータ１０１の外周面と半径方向に対向するように配置されている。すなわち、回転電機１０２は、インナーロータ型の回転電機として構成されている。回転電機１０２は、たとえば、３相交流（Ｕ相、Ｖ相およびＷ相）の電力が供給されて駆動するモータとして構成されている。 [Structure of stator]
The stator 100 according to the present embodiment will be described with reference to FIGS. 1 to 9. The stator 100 constitutes a part of the rotary electric machine 102. Further, the stator 100 is arranged so as to face the outer peripheral surface of the rotor 101 in the radial direction. That is, the rotary electric machine 102 is configured as an inner rotor type rotary electric machine. The rotary electric machine 102 is configured as, for example, a motor that is driven by being supplied with three-phase alternating current (U-phase, V-phase, and W-phase) power.
　なお、本願明細書では、「軸方向」および「中心軸線方向」とは、ステータ１００の中心軸線Ｃ１（図１参照）に沿った方向（Ｚ１方向またはＺ２方向）を意味する。また、「周方向」は、ステータ１００の周方向（Ａ１方向またはＡ２方向）を意味する。また、「径方向」は、ステータ１００の径方向を意味する。そして、「径方向内側」および「内径側」は、ステータ１００の中心軸線Ｃ１に向かう方向（Ｂ１方向側）を意味し、「径方向外側」および「外径側」は、ステータ１００の中心軸線Ｃ１から遠ざかる方向（Ｂ２方向側）を意味する。 In the present specification, the “axial direction” and the “central axis direction” mean the direction (Z1 direction or Z2 direction) along the central axis C1 (see FIG. 1) of the stator 100. Further, the “circumferential direction” means the circumferential direction (A1 direction or A2 direction) of the stator 100. Further, the “radial direction” means the radial direction of the stator 100. The “radial inner side” and the “inner diameter side” mean the direction toward the central axis C1 of the stator 100 (B1 direction side), and the “radial outer side” and the “outer diameter side” are the central axis lines of the stator 100. It means the direction away from C1 (B2 direction side).
　（コイルおよびステータコアの構成）
　ステータ１００には、図１に示すように、複数のコイル１０が設けられている。複数のコイル１０は、Ｕ相の交流電力が供給されるＵ相コイル１０Ｕと、Ｖ相の交流電力が供給されるＶ相コイル１０Ｖと、Ｗ相の交流電力が供給されるＷ相コイル１０Ｗとを含む。なお、以下の記載では、Ｕ相コイル１０ＵとＶ相コイル１０ＶとＷ相コイル１０Ｗとを特に区別しない場合には、単に「コイル１０」として説明する。 (Structure of coil and stator core)
As shown in FIG. 1, the stator 100 is provided with a plurality of coils 10. The plurality of coils 10 include a U-phase coil 10U to which U-phase AC power is supplied, a V-phase coil 10V to which V-phase AC power is supplied, and a W-phase coil 10W to which W-phase AC power is supplied. including. In the following description, the U-phase coil 10U, the V-phase coil 10V, and the W-phase coil 10W will be simply referred to as "coil 10" unless otherwise specified.
　また、ステータ１００は、図２に示すように、ステータコア２０を備える。また、ステータコア２０は、軸方向に長さＬ１０（図２２参照）を有する。ステータコア２０には、複数のスロット２１が設けられている。また、ステータコア２０には、スロット２１を構成する複数のティース２２が設けられている。スロット２１は、周方向に隣り合う夫々のティース２２の間に形成されている。そして、ティース２２は、それぞれ、バックヨーク２３から径方向内側に突出するように形成されている。 Further, the stator 100 includes a stator core 20 as shown in FIG. Further, the stator core 20 has a length L10 (see FIG. 22) in the axial direction. The stator core 20 is provided with a plurality of slots 21. Further, the stator core 20 is provided with a plurality of teeth 22 that form the slots 21. The slot 21 is formed between the teeth 22 that are adjacent to each other in the circumferential direction. The teeth 22 are each formed so as to project inward in the radial direction from the back yoke 23.
　スロット２１は、図３に示すように、径方向内側に開口する開口部２１ａを有する。また、スロット２１は、スロット２１の内径側部分２１ｂの周方向の幅Ｗ１よりも、スロット２１の外径側部分２１ｃの周方向の幅Ｗ２が大きく構成されている。開口部２１ａの周方向の幅は、たとえば、幅Ｗ１である。また、開口部２１ａの近傍には、コイル１０の径方向内側への移動（脱落）を防止するための板状のウェッジ部材２１ｅが配置されている。具体的には、ウェッジ部材２１ｅは、スロット２１の開口部２１ａの近傍の溝部２１ｄに設けられている。そして、溝部２１ｄは、この板状のウェッジ部材２１ｅを配置（中心軸線方向に挿入する）ために、周方向の幅がＷ１よりも大きく（幅Ｗ３）構成されている。 As shown in FIG. 3, the slot 21 has an opening 21a that opens radially inward. The slot 21 is configured such that the circumferential width W2 of the outer diameter side portion 21c of the slot 21 is larger than the circumferential width W1 of the inner diameter side portion 21b of the slot 21. The circumferential width of the opening 21a is, for example, the width W1. In addition, a plate-shaped wedge member 21e for preventing the coil 10 from moving (falling off) inward in the radial direction is disposed near the opening 21a. Specifically, the wedge member 21e is provided in the groove 21d near the opening 21a of the slot 21. The groove portion 21d has a circumferential width larger than W1 (width W3) because the plate-shaped wedge member 21e is arranged (inserted in the central axis direction).
　コイル１０は、図４に示すように、ステータコア２０の複数のスロット２１のうちの周方向位置が互いに異なるスロット２１に収容される一対のスロット収容部１１と、一対のスロット収容部１１に接続され、ステータコア２０（ティース２２）の軸方向の端面２０ａ（図９参照）から軸方向外側に突出するように配置されたコイルエンド部１２とを含む。また、コイル１０は、導線１０ａが複数回巻回されることにより形成されている。たとえば、導線１０ａは、丸線として構成されている。たとえば、コイル１０は、径方向内側から見て、六角形形状または八角形形状を有する。 As shown in FIG. 4, the coil 10 is connected to the pair of slot accommodating portions 11 accommodated in the slots 21 of the plurality of slots 21 of the stator core 20 whose circumferential positions are different from each other, and the pair of slot accommodating portions 11. And the coil end portion 12 arranged so as to project outward in the axial direction from the axial end surface 20a (see FIG. 9) of the stator core 20 (teeth 22). The coil 10 is formed by winding the conductive wire 10a a plurality of times. For example, the conductive wire 10a is configured as a round wire. For example, the coil 10 has a hexagonal shape or an octagonal shape when viewed from the inside in the radial direction.
　一対のスロット収容部１１は、外径側スロット収容部１１ａおよび内径側スロット収容部１１ｂからなる。外径側スロット収容部１１ａは、スロット２１の外径側部分２１ｃに配置されている。また、内径側スロット収容部１１ｂは、外径側スロット収容部１１ａが配置されているスロット２１から周方向に所定の数のスロット２１の分（図２では、スロットピッチが６）、離れたスロット２１の内径側部分２１ｂに配置されている。すなわち、コイル１０は、２層重ね巻きコイルでかつ分布巻きコイルである。なお、外径側スロット収容部１１ａは、請求の範囲の「一方のスロット収容部」の一例である。また、内径側スロット収容部１１ｂは、請求の範囲の「他方のスロット収容部」の一例である。また、外径側スロット収容部１１ａが配置されているスロット２１、および、外径側部分２１ｃは、請求の範囲の「第１スロット」の一例である。また、外径側スロット収容部１１ａが配置されているスロット２１から周方向に所定の数のスロット２１の分（図２では、スロットピッチが６）、離れたスロット２１、および、内径側部分２１ｂは、請求の範囲の「第２スロット」の一例である。 The pair of slot accommodating portions 11 includes an outer diameter side slot accommodating portion 11a and an inner diameter side slot accommodating portion 11b. The outer diameter side slot accommodation portion 11 a is arranged in the outer diameter side portion 21 c of the slot 21. Further, the inner diameter side slot accommodating portion 11b is separated from the slot 21 in which the outer diameter side slot accommodating portion 11a is arranged by a predetermined number of slots 21 in the circumferential direction (slot pitch is 6 in FIG. 2). It is arranged on the inner diameter side portion 21 b of 21. That is, the coil 10 is a two-layer lap winding coil and a distributed winding coil. The outer diameter side slot housing portion 11a is an example of "one slot housing portion" in the claims. The inner diameter side slot accommodation portion 11b is an example of the "other slot accommodation portion" in the claims. The slot 21 in which the outer diameter side slot housing portion 11a is arranged and the outer diameter side portion 21c are examples of the "first slot" in the claims. Further, a predetermined number of slots 21 (in FIG. 2, the slot pitch is 6), slots 21 separated from the slots 21 in which the outer diameter side slot accommodating portions 11a are arranged, and slots 21 and inner diameter side portions 21b. Is an example of the “second slot” in the claims.
　また、図１に示すように、同一のスロット２１では、内径側部分２１ｂと外径側部分２１ｃとにおいて、同相のスロット収容部１１が配置されている。また、図２に示すように、スロット２１には、一対のスロット収容部１１と、後述する第１接続部分３３ａ、第２接続部分３３ｂおよびスロット絶縁シート４０が配置されている。 Further, as shown in FIG. 1, in the same slot 21, the slot accommodation portions 11 of the same phase are arranged in the inner diameter side portion 21b and the outer diameter side portion 21c. Further, as shown in FIG. 2, the slot 21 is provided with a pair of slot accommodating portions 11, a first connecting portion 33a, a second connecting portion 33b, and a slot insulating sheet 40, which will be described later.
　図４に示すように、一対のスロット収容部１１とコイルエンド部１２とは、連続して形成されている。一対のスロット収容部１１は、それぞれ、中心軸線Ｃ１方向に直線状に延びるように形成されている。コイルエンド部１２は、外径側スロット収容部１１ａと内径側スロット収容部１１ｂとを接続するとともに、複数のスロット２１に跨るように（図２参照）、周方向に沿って延びるように配置されている。また、コイルエンド部１２は、一対のスロット収容部１１のＺ１方向側とＺ２方向側とに、それぞれ設けられている。 As shown in FIG. 4, the pair of slot accommodating portions 11 and the coil end portion 12 are continuously formed. Each of the pair of slot accommodating portions 11 is formed to linearly extend in the direction of the central axis C1. The coil end portion 12 connects the outer diameter side slot accommodating portion 11a and the inner diameter side slot accommodating portion 11b, and is arranged so as to extend along the circumferential direction so as to straddle the plurality of slots 21 (see FIG. 2). ing. The coil end portions 12 are provided on the Z1 direction side and the Z2 direction side of the pair of slot accommodating portions 11, respectively.
　図５に示すように、一の相のコイル１０（たとえば、Ｕ相コイル１０Ｕ）のコイルエンド部１２は、他の相のコイル１０（たとえば、Ｖ相コイル１０Ｖ）のコイルエンド部１２と径方向および周方向に隣接して配置されている。 As shown in FIG. 5, the coil end portion 12 of the coil 10 of one phase (for example, the U-phase coil 10U) and the coil end portion 12 of the coil 10 of another phase (for example, the V-phase coil 10V) are arranged in the radial direction. And adjacent to each other in the circumferential direction.
　（絶縁シートの構成）
　ステータ１００は、図６に示すように、複数（たとえば、コイル１０の数と同数）の絶縁シート３０を備える。絶縁シート３０は、コイルエンド部１２に配置され、中心軸線Ｃ１方向に沿って延びるように設けられた複数の折り曲げ部３１が広げられた状態（図７参照）で配置されているコイルエンド部絶縁部３２を含む。また、絶縁シート３０には、コイルエンド部絶縁部３２に接続されている接続部分３３が設けられている。なお、絶縁シート３０は、請求の範囲の「絶縁部材」の一例である。 (Structure of insulating sheet)
As shown in FIG. 6, the stator 100 includes a plurality (for example, the same number as the coils 10) of insulating sheets 30. The insulating sheet 30 is disposed on the coil end portion 12, and the plurality of bent portions 31 provided so as to extend along the central axis C1 direction are expanded (see FIG. 7). The part 32 is included. Further, the insulating sheet 30 is provided with a connecting portion 33 connected to the coil end insulating portion 32. The insulating sheet 30 is an example of the "insulating member" in the claims.
　複数の絶縁シート３０のコイルエンド部絶縁部３２の各々は、図５に示すように、複数のコイル１０のコイルエンド部１２の各々の径方向外側に配置されている。たとえば、ステータ１００では、コイル１０が全てのスロット２１に配置された状態において、互いに隣接するコイル１０同士（コイルエンド部１２）の間に、絶縁シート３０が配置された状態になる。そして、複数のコイル１０のうちの径方向内側のコイル１０のコイルエンド部１２と、径方向内側のコイル１０に隣接する径方向外側のコイル１０のコイルエンド部１２との径方向の間に、径方向内側のコイル１０に取り付けられた絶縁シート３０が配置される状態になる。なお、図５では、説明を容易にするために、コイル１０と絶縁シート３０とが離間して配置されるように（隙間を有するように）図示しているが、コイル１０と絶縁シート３０とは接触していてもよい。たとえば、コイルエンド部１２の径方向外側の側面１２ａに、絶縁シート３０のコイルエンド部絶縁部３２が接触している。 Each of the coil end insulating portions 32 of the plurality of insulating sheets 30 is arranged radially outside each of the coil end portions 12 of the plurality of coils 10, as shown in FIG. For example, in the stator 100, when the coils 10 are arranged in all the slots 21, the insulating sheet 30 is arranged between the adjacent coils 10 (coil end portions 12). Then, between the coil end portion 12 of the coil 10 on the radially inner side of the plurality of coils 10 and the coil end portion 12 of the coil 10 on the radially outer side adjacent to the coil 10 on the radially inner side, The insulating sheet 30 attached to the radially inner coil 10 is placed. Note that, in FIG. 5, the coil 10 and the insulating sheet 30 are illustrated as being separated from each other (to have a gap) for ease of description, but the coil 10 and the insulating sheet 30 are not illustrated. May be in contact. For example, the coil end insulating portion 32 of the insulating sheet 30 is in contact with the radially outer side surface 12 a of the coil end portion 12.
　たとえば、絶縁シート３０は、ノーメックス（登録商標）またはカプトン（登録商標）のいずれかまたはこの組み合わせにより形成されている。なお、ノーメックスとは、アラミドポリマーから形成された繊維（絶縁紙）である。また、絶縁シート３０を、ＰＥＮ（ｐｏｌｙｅｔｈｙｌｅｎｅ　ｎａｐｈｔｈａｌａｔｅ）フィルムからなる芯材と、芯材の両面を覆うように設けられるアラミド繊維からなる表面部材とから構成してもよい。また、上記の材料またはその他の材料を接着材や融着などにより全面的に互いに接着することにより、１枚のシート状の絶縁シート３０として構成してもよい。 For example, the insulating sheet 30 is formed of Nomex (registered trademark) or Kapton (registered trademark) or a combination thereof. Note that Nomex is a fiber (insulating paper) formed from aramid polymer. The insulating sheet 30 may be composed of a core material made of a PEN (polyethylene naphthalate) film and a surface member made of aramid fiber provided so as to cover both surfaces of the core material. Alternatively, the above-mentioned materials or other materials may be entirely adhered to each other by an adhesive or fusion to form a single sheet-shaped insulating sheet 30.
　図６および図７に示すように、絶縁シート３０は、シート状に形成されており、１枚のシート状の絶縁シート３０が複数回折り曲げられることにより、コイルエンド部絶縁部３２に、複数の折り曲げ部３１が形成されている。なお、図６は、複数の折り曲げ部３１が広げられる前（折り曲げ部３１が折りたたまれた状態：図８（ａ）参照）の絶縁シート３０を示しており、ステータ１００の製造時の絶縁シート３０の状態を示している。また、図７は、複数の折り曲げ部３１が広げられた後（図８（ｂ）および（ｃ）参照）の絶縁シート３０を示しており、ステータ１００の完成後の絶縁シート３０の状態を示している。 As shown in FIGS. 6 and 7, the insulating sheet 30 is formed in a sheet shape, and by bending the sheet-shaped insulating sheet 30 a plurality of times, a plurality of coil end insulating portions 32 are provided with a plurality of insulating sheets. A bent portion 31 is formed. Note that FIG. 6 shows the insulating sheet 30 before the plurality of bent portions 31 are unfolded (a state in which the bent portions 31 are folded: see FIG. 8A), and the insulating sheet 30 at the time of manufacturing the stator 100. Shows the state of. Further, FIG. 7 shows the insulating sheet 30 after the plurality of bent portions 31 are expanded (see FIGS. 8B and 8C), and shows the state of the insulating sheet 30 after the stator 100 is completed. ing.
　複数の折り曲げ部３１は、互いに平行に中心軸線Ｃ１方向に沿って延びるように形成されている。これにより、複数の折り曲げ部３１が広げられた後の複数の折り曲げ部３１の中心軸線Ｃ１方向に直交する方向の長さＬ２（図７参照）は、複数の折り曲げ部３１が広げられる前の複数の折り曲げ部３１の中心軸線Ｃ１方向に直交する方向の長さＬ１（図６参照）よりも大きくなる。そして、複数の折り曲げ部３１が広げられた後のコイルエンド部絶縁部３２の中心軸線Ｃ１方向に直交する方向の長さＬ４（図７参照）は、複数の折り曲げ部３１が広げられる前のコイルエンド部絶縁部３２の中心軸線Ｃ１方向に直交する方向の長さＬ３（図６参照）よりも大きくなる。また、コイルエンド部絶縁部３２の中心軸線Ｃ１方向の長さＬ５は、複数の折り曲げ部３１を広げることによっては略変化しない。 The plurality of bent portions 31 are formed so as to extend parallel to each other along the central axis C1 direction. As a result, the length L2 (see FIG. 7) of the plurality of bent portions 31 in the direction orthogonal to the central axis C1 direction after the plurality of bent portions 31 is expanded is equal to the length before the plurality of bent portions 31 is expanded. It becomes larger than the length L1 (see FIG. 6) of the bent portion 31 in the direction orthogonal to the central axis C1 direction. The length L4 (see FIG. 7) of the coil end insulating portion 32 in the direction orthogonal to the central axis C1 direction after the plurality of bent portions 31 is expanded is the coil before the plurality of bent portions 31 is expanded. The length is longer than the length L3 (see FIG. 6) of the end insulating portion 32 in the direction orthogonal to the central axis C1 direction. Further, the length L5 of the coil end insulating portion 32 in the direction of the central axis C1 does not change substantially by expanding the plurality of bent portions 31.
　図８（ａ）に示すように、折り曲げ部３１は、たとえば、絶縁シート３０の一部が折り返されて（折り畳まれて）形成されている。たとえば、折り曲げ部３１は、中心軸線Ｃ１方向に見て、略Ｓ字状に形成されている。略Ｓ字状の折り曲げ部３１は、中心軸線Ｃ１方向に直交する方向（径方向）の長さＬ２１を有する。そして、折り曲げ部３１が中心軸線Ｃ１方向に交差する方向の両側から引っ張られることにより、折り曲げ部３１の折り返されている部分（図８（ｂ））が開放されて、図８（ｃ）に示すように、折り曲げ部３１の中心軸線Ｃ１方向に直交する方向の長さは、長さＬ２１よりも大きいＬ２２となる。そして、折り曲げ部３１の折り曲げ位置に対応する位置の折り曲げ線３１ａが露出される状態となる。また、図７に示すように、複数の折り曲げ線３１ａは、互いに平行に中心軸線Ｃ１方向に沿って形成されている。 As shown in FIG. 8A, the bent portion 31 is formed, for example, by folding (folding) a part of the insulating sheet 30. For example, the bent portion 31 is formed in a substantially S shape when viewed in the direction of the central axis C1. The substantially S-shaped bent portion 31 has a length L21 in the direction (radial direction) orthogonal to the central axis C1 direction. Then, the bent portion 31 is pulled from both sides in the direction intersecting with the central axis C1 direction, whereby the folded back portion of the bent portion 31 (FIG. 8B) is opened, and the bent portion 31 is shown in FIG. 8C. As described above, the length of the bent portion 31 in the direction orthogonal to the central axis C1 direction is L22, which is larger than the length L21. Then, the bending line 31a at a position corresponding to the bending position of the bending portion 31 is exposed. Further, as shown in FIG. 7, the plurality of bending lines 31a are formed parallel to each other along the direction of the central axis C1.
　〈コイルエンド部絶縁部の構成〉
　コイルエンド部絶縁部３２は、異相間（または同相間）のコイルエンド部１２同士の絶縁性能を確保する機能を有する。図７に示すように、コイルエンド部絶縁部３２は、コイルエンド部１２の形状に対応する形状を有する。具体的には、径方向に見て、コイルエンド部絶縁部３２とコイルエンド部１２とは、互いにオーバラップする位置に配置される。好ましくは、径方向に見て、コイルエンド部絶縁部３２は、コイルエンド部１２全体（側面１２ａ全体）を覆うように形成されている。 <Coil end insulation structure>
The coil end portion insulating portion 32 has a function of ensuring insulation performance between the coil end portions 12 between different phases (or between the same phases). As shown in FIG. 7, the coil end insulating portion 32 has a shape corresponding to the shape of the coil end portion 12. Specifically, when viewed in the radial direction, the coil end insulating portion 32 and the coil end portion 12 are arranged at positions overlapping with each other. Preferably, when viewed in the radial direction, the coil end insulating portion 32 is formed so as to cover the entire coil end portion 12 (the entire side surface 12a).
　絶縁シート３０には、Ｚ１方向側に配置された第１コイルエンド部絶縁部３２ａと、Ｚ２方向側に配置された第２コイルエンド部絶縁部３２ｂとが設けられている。第１コイルエンド部絶縁部３２ａと第２コイルエンド部絶縁部３２ｂとは、同様の形状を有する。第１コイルエンド部絶縁部３２ａと第２コイルエンド部絶縁部３２ｂとは共に、コイル１０の径方向外側に配置されている。 The insulating sheet 30 is provided with a first coil end insulating portion 32a arranged on the Z1 direction side and a second coil end insulating portion 32b arranged on the Z2 direction side. The first coil end insulating portion 32a and the second coil end insulating portion 32b have the same shape. Both the first coil end insulating portion 32a and the second coil end insulating portion 32b are arranged radially outside the coil 10.
　〈固定部の構成〉
　また、図６に示すように、ステータ１００の製造時において、コイルエンド部絶縁部３２には、複数の折り曲げ部３１同士を固定して、折り曲げ部３１が開放しないようにするための固定部３４が設けられている。たとえば、固定部３４は、第１コイルエンド部絶縁部３２ａのＺ２方向の端部に接続するように設けられている。また、固定部３４は、第２コイルエンド部絶縁部３２ｂのＺ１方向の端部に接続するように設けられている。固定部３４は、折り曲げ部３１の折り返された部分が互いに接着剤等により固定されることにより形成されている。また、固定部３４は、第１コイルエンド部絶縁部３２ａおよび第２コイルエンド部絶縁部３２ｂからコイル１０の巻回内側に向かって突出するように形成されている。また、固定部３４は、ステータ１００の完成時においては、取り除かれている。 <Structure of fixed part>
Further, as shown in FIG. 6, when the stator 100 is manufactured, a plurality of bent portions 31 are fixed to the coil end insulating portion 32 so that the bent portions 31 do not open. Is provided. For example, the fixing portion 34 is provided so as to be connected to the end portion of the first coil end insulating portion 32a in the Z2 direction. Further, the fixed portion 34 is provided so as to be connected to the end portion of the second coil end insulating portion 32b in the Z1 direction. The fixed portion 34 is formed by fixing the folded-back portions of the bent portion 31 to each other with an adhesive or the like. Further, the fixing portion 34 is formed so as to protrude from the first coil end insulating portion 32a and the second coil end insulating portion 32b toward the inner side of the winding of the coil 10. Further, the fixing portion 34 is removed when the stator 100 is completed.
　〈接続部分の構成〉
　図６に示すように、本実施形態では、絶縁シート３０には、第１コイルエンド部絶縁部３２ａと第２コイルエンド部絶縁部３２ｂとを接続する接続部分３３（脚部）が設けられている。また、図２に示すように、接続部分３３は、径方向外側に配置された第１接続部分３３ａと、径方向内側に配置された第２接続部分３３ｂとを含む。ここで、本実施形態では、スロット２１内において、第１接続部分３３ａは、一対のスロット収容部１１のうちの外径側スロット収容部１１ａと、スロット２１の径方向外側の底部を構成するステータコア２０（バックヨーク２３）の内面２３ａ（内壁面）との間に配置されている。また、スロット２１内において、第２接続部分３３ｂは、内径側スロット収容部１１ｂと開口部２１ａとの間に配置されている。 <Structure of connection part>
As shown in FIG. 6, in the present embodiment, the insulating sheet 30 is provided with a connecting portion 33 (leg) that connects the first coil end insulating portion 32a and the second coil end insulating portion 32b. There is. Further, as shown in FIG. 2, the connecting portion 33 includes a first connecting portion 33a arranged radially outside and a second connecting portion 33b arranged radially inside. Here, in the present embodiment, in the slot 21, the first connecting portion 33a constitutes the outer diameter side slot accommodating portion 11a of the pair of slot accommodating portions 11 and the stator core that constitutes the radially outer bottom portion of the slot 21. 20 (back yoke 23) is arranged between the inner surface 23a (inner wall surface). In the slot 21, the second connection portion 33b is arranged between the inner diameter side slot accommodating portion 11b and the opening 21a.
　（スロット絶縁シートの構成）
　ステータ１００には、図３に示すように、各スロット２１に、スロット収容部１１とスロット２１とを絶縁するスロット絶縁シート４０が設けられている。具体的には、スロット絶縁シート４０は、絶縁シート３０と同様の材料からなり、たとえば、ノーメックス、カプトン、または、ＰＥＮフィルムのいずれかまたはこれらの組み合わせからなる。 (Structure of slot insulation sheet)
As shown in FIG. 3, in the stator 100, each slot 21 is provided with a slot insulating sheet 40 that insulates the slot housing portion 11 from the slot 21. Specifically, the slot insulating sheet 40 is made of the same material as the insulating sheet 30, and is made of, for example, Nomex, Kapton, or PEN film, or a combination thereof.
　図９に示すように、スロット絶縁シート４０は、スロット収容部１１とスロット２１との間に配置されたスロット絶縁部４１を含む。スロット絶縁部４１は、スロット２１の内側面を覆うように配置されている。そして、スロット絶縁部４１は、コイル１０（スロット収容部１１）とスロット２１との間の絶縁を確保する機能を有する。 As shown in FIG. 9, the slot insulating sheet 40 includes a slot insulating portion 41 arranged between the slot accommodating portion 11 and the slot 21. The slot insulating portion 41 is arranged so as to cover the inner side surface of the slot 21. The slot insulating portion 41 has a function of ensuring insulation between the coil 10 (slot housing portion 11) and the slot 21.
　また、スロット絶縁シート４０は、ステータコア２０の回転軸方向の端面２０ａからＺ１方向またはＺ２方向に突出する襟状部４２を含む。すなわち、襟状部４２は、コイルエンド部１２の径方向外側および周方向両側を覆うように配置される。また、襟状部４２は、スロット絶縁部４１に連続して形成されており、ステータコア２０の端面２０ａ側に折り返されることにより、襟状に形成されている。 The slot insulating sheet 40 also includes a collar-shaped portion 42 protruding in the Z1 direction or the Z2 direction from the end surface 20a of the stator core 20 in the rotation axis direction. That is, the collar-shaped portion 42 is arranged so as to cover the radially outer side and the circumferentially both sides of the coil end portion 12. The collar-shaped portion 42 is formed continuously with the slot insulating portion 41, and is folded back toward the end surface 20a of the stator core 20 to form a collar-shaped portion.
　（ステータの製造装置）
　次に、図１０～図４３を参照して、本実施形態によるステータ１００の製造装置２００について説明する。なお、以下の説明では、ステータコア２０に配置された状態で、軸方向（Ｚ方向）となる方向（外径側スロット収容部１１ａおよび内径側スロット収容部１１ｂが延びる方向）を、Ｅ方向とし、コイル１０の巻回軸線方向をＦ方向とし、Ｅ方向に直交しかつＦ方向に直交する方向をＧ方向とする。 (Stator manufacturing equipment)
Next, with reference to FIGS. 10 to 43, the manufacturing apparatus 200 of the stator 100 according to the present embodiment will be described. In the following description, the direction (the direction in which the outer diameter side slot accommodating portion 11a and the inner diameter side slot accommodating portion 11b extend) in the axial direction (Z direction) when arranged in the stator core 20 is defined as the E direction, The winding axis direction of the coil 10 is the F direction, and the direction orthogonal to the E direction and orthogonal to the F direction is the G direction.
　（コイル形成部の構成）
　製造装置２００は、図１０に示すように、コイル１０を形成するためのコイル形成部２１０を備える。コイル形成部２１０は、巻芯２１１と、２つの側板２１２と、２つの巻芯保持治具２１３とを含む。そして、図１１に示すように、２つの側板２１２が、巻芯２１１をＦ方向両側から挟み込むように配置されることにより、巻枠が構成される。そして、コイル形成部２１０は、巻芯２１１（巻枠）に、導線１０ａが巻回されることにより、Ｆ方向に見て、長円（トラック形状）形状（図１０参照）を有し、Ｅ方向に長さＬ３１を有するコイル１０を形成するように構成されている。また、巻芯２１１は、Ｆ方向に見て、長円（または楕円）形状を有するとともに、Ｇ方向の幅Ｗ１１（図１１参照）を有するように形成されている。また、巻芯２１１と側板２１２とは、絶縁シート３０を巻芯２１１と側板２１２との間に挟み込むように配置される。 (Structure of coil forming part)
The manufacturing apparatus 200 includes a coil forming section 210 for forming the coil 10, as shown in FIG. 10. The coil forming part 210 includes a winding core 211, two side plates 212, and two winding core holding jigs 213. Then, as shown in FIG. 11, the two side plates 212 are arranged so as to sandwich the winding core 211 from both sides in the F direction, thereby forming a winding frame. The coil forming part 210 has an elliptical (track-shaped) shape (see FIG. 10) when viewed in the F direction by winding the conductive wire 10a around the winding core 211 (winding frame), and E It is configured to form a coil 10 having a length L31 in the direction. The winding core 211 is formed to have an oval (or elliptical) shape when viewed in the F direction and a width W11 (see FIG. 11) in the G direction. Further, the winding core 211 and the side plate 212 are arranged so as to sandwich the insulating sheet 30 between the winding core 211 and the side plate 212.
　巻芯保持治具２１３は、図１１に示すように、巻芯２１１を、側板２１２を介してＦ方向の両側から挟み込むように保持するように構成されている。これにより、巻芯保持治具２１３は、Ｆ方向の両側からコイル１０を保持するように構成されている。たとえば、巻芯保持治具２１３は、Ｇ方向の幅Ｗ１２を有し、Ｅ方向に延びる板状に形成されている。幅Ｗ１２は、幅Ｗ１１と略同一である。また、巻芯保持治具２１３は、側板２１２と一体的にＥ方向に移動可能に構成されている。 As shown in FIG. 11, the winding core holding jig 213 is configured to hold the winding core 211 so as to sandwich the winding core 211 from both sides in the F direction via the side plates 212. Thereby, the core holding jig 213 is configured to hold the coil 10 from both sides in the F direction. For example, the winding core holding jig 213 has a width W12 in the G direction and is formed in a plate shape extending in the E direction. The width W12 is substantially the same as the width W11. Further, the core holding jig 213 is configured to be movable in the E direction integrally with the side plate 212.
　（コイル保持治具の構成）
　製造装置２００は、図１２～図１５に示すように、複数のコイル１０の各々に設けられ、コイル１０を保持することによりコイル１０の少なくとも一部の変形を規制する複数のコイル保持治具２２０を備える。 (Structure of coil holding jig)
As shown in FIGS. 12 to 15, the manufacturing apparatus 200 is provided in each of the plurality of coils 10, and holds the coils 10 to restrict the deformation of at least a part of the coils 10. Equipped with.
　コイル保持治具２２０は、図１２に示すように、コイル１０を、ステータコア２０の周方向両側（図１２では、Ｆ方向の両側）から挟み込むように保持する板部材２２１および２２２と、接続部材２２３とを含む。板部材２２１および２２２は、コイル１０を、ステータコア２０の周方向両側から挟み込むように保持することにより、ステータコア２０の周方向におけるコイル１０の変形を規制するように構成されている。言い換えると、板部材２２１および２２２は、コイル１０の寸法の拡大を防止するように構成されている。なお、接続部材２２３は、請求の範囲の「接続部」の一例である。 As shown in FIG. 12, the coil holding jig 220 includes plate members 221 and 222 that hold the coil 10 so as to sandwich it from both sides in the circumferential direction of the stator core 20 (both sides in the F direction in FIG. 12), and a connecting member 223. Including and The plate members 221 and 222 are configured to restrict the deformation of the coil 10 in the circumferential direction of the stator core 20, by holding the coil 10 so as to sandwich the coil 10 from both sides in the circumferential direction of the stator core 20. In other words, the plate members 221 and 222 are configured to prevent the dimension of the coil 10 from expanding. The connecting member 223 is an example of the “connecting portion” in the claims.
　また、板部材２２１は、コイル１０のＦ２方向側に配置される第１部分２２１ａと、第１部分２２１ａに接続され、コイル１０のＧ方向両側に配置される第２部分２２１ｂとを含む。また、板部材２２２は、コイル１０のＦ１方向側に配置される第１部分２２２ａと、第１部分２２２ａに接続され、コイル１０のＧ方向両側に配置される第２部分２２２ｂとを含む。そして、第１部分２２１ａおよび２２２ａにより、コイル１０がＦ方向両側に拡大するように変形するのを規制することが可能となる。すなわち、コイル１０のＦ方向の幅Ｗ２１がスロット２１の幅Ｗ２（または幅Ｗ１）以下となる。また、第２部分２２１ｂおよび２２２ｂにより、コイル１０がＧ方向両側に拡大するように変形するのを規制することが可能となる。 Further, the plate member 221 includes a first portion 221a arranged on the F2 direction side of the coil 10 and second portions 221b connected to the first portion 221a and arranged on both sides of the coil 10 in the G direction. The plate member 222 includes a first portion 222a arranged on the F1 direction side of the coil 10 and second portions 222b connected to the first portion 222a and arranged on both sides of the coil 10 in the G direction. The first portions 221a and 222a can restrict the coil 10 from being deformed so as to expand in the F direction on both sides. That is, the width W21 of the coil 10 in the F direction is less than or equal to the width W2 (or width W1) of the slot 21. Further, the second portions 221b and 222b can restrict the coil 10 from being deformed so as to expand in the G direction on both sides.
　また、図１３に示すように、板部材２２１および２２２は、それぞれ、ステータコア２０の周方向（Ａ１方向側）から見て、開口部２２１ｃおよび２２２ｃが設けられていることにより略Ｕ字状を有するように形成されている。板部材２２１には、ステータコア２０のＺ１方向側に開口する開口部２２１ｃが設けられている。板部材２２２には、ステータコア２０のＺ１方向側に開口する開口部２２２ｃが設けられている。すなわち、開口部２２１ｃは、板部材２２１のＺ１方向側の端部２２１ｅからＺ２方向に切り欠く、切欠き部として形成されている。また、開口部２２２ｃは、板部材２２２のＺ１方向側の端部２２２ｅからＺ２方向に切り欠く、切欠き部として形成されている。 Further, as shown in FIG. 13, the plate members 221 and 222 each have a substantially U-shape by being provided with the openings 221c and 222c when viewed from the circumferential direction (A1 direction side) of the stator core 20. Is formed. The plate member 221 is provided with an opening 221c that opens toward the Z1 direction side of the stator core 20. The plate member 222 is provided with an opening 222c that opens to the Z1 direction side of the stator core 20. That is, the opening portion 221c is formed as a notch portion that is notched in the Z2 direction from the end portion 221e on the Z1 direction side of the plate member 221. Further, the opening 222c is formed as a cutout portion that is cut out in the Z2 direction from the end portion 222e on the Z1 direction side of the plate member 222.
　また、開口部２２１ｃおよび２２２ｃのＥ方向の長さＬ３２は、コイル変形工程（Ｓ３０）よりも前の状態のコイル１０のＥ方向の長さＬ３１以上である。また、開口部２２１ｃおよび２２２ｃのＧ方向の幅Ｗ１３は、巻芯２１１の幅Ｗ１１および巻芯保持治具２１３の幅Ｗ１２以上である。これにより、コイル保持治具２２０は、巻芯保持治具２１３により開口部２２１ｃおよび２２２ｃを介してコイル１０および巻芯２１１が保持された状態で、コイル１０を保持可能に構成されている。 The length L32 of the openings 221c and 222c in the E direction is equal to or longer than the length L31 of the coil 10 in the E direction in the state before the coil deforming step (S30). The width W13 of the openings 221c and 222c in the G direction is equal to or larger than the width W11 of the winding core 211 and the width W12 of the winding core holding jig 213. Accordingly, the coil holding jig 220 is configured to be able to hold the coil 10 in a state in which the coil 10 and the winding core 211 are held by the winding core holding jig 213 via the openings 221c and 222c.
　また、板部材２２１および２２２は、絶縁シート３０をコイル１０（コイルエンド部１２）と板部材２２２との間に挟み込むように、コイル１０を保持するように構成されている。すなわち、コイル保持治具２２０は、絶縁シート３０が取り付けられたコイル１０を保持するように構成されている。また、板部材２２１および２２２は、周方向から見て、絶縁シート３０の固定部３４が開口部２２１ｃおよび２２２ｃを介して露出するように、コイル１０を保持するように構成されている。 The plate members 221 and 222 are configured to hold the coil 10 so that the insulating sheet 30 is sandwiched between the coil 10 (coil end portion 12) and the plate member 222. That is, the coil holding jig 220 is configured to hold the coil 10 to which the insulating sheet 30 is attached. Further, the plate members 221 and 222 are configured to hold the coil 10 so that the fixing portion 34 of the insulating sheet 30 is exposed through the openings 221c and 222c when viewed in the circumferential direction.
　接続部材２２３は、図１３に示すように、板部材２２１および２２２を各々の端部２２１ｄおよび２２２ｄ近傍において接続するように構成されている。具体的には、図１４に示すように、接続部材２２３は、２つの接続板部２２３ａと回動軸部２２３ｂとを含む。すなわち、接続部材２２３は、蝶番状に構成されている。なお、「端部２２１ｄおよび２２２ｄ近傍」とは、端部２２１ｄおよび２２２ｄを含むとともに、端部２２１ｄおよび２２２ｄからコイル１０のＥ２方向側のコイルエンド部１２となる部分までの間の領域、および、端部２２１ｄおよび２２２ｄからさらにＥ２方向の領域を意味するものとする。また、回動軸部２２３ｂは、請求の範囲の「支点」の一例である。 As shown in FIG. 13, the connecting member 223 is configured to connect the plate members 221 and 222 near the ends 221d and 222d, respectively. Specifically, as shown in FIG. 14, the connecting member 223 includes two connecting plate portions 223a and a rotating shaft portion 223b. That is, the connecting member 223 is configured in a hinge shape. In addition, "the vicinity of the end portions 221d and 222d" includes the end portions 221d and 222d, a region from the end portions 221d and 222d to the coil end portion 12 on the E2 direction side of the coil 10, and It means a region further in the E2 direction from the end portions 221d and 222d. The rotating shaft portion 223b is an example of the "fulcrum" in the claims.
　そして、コイル保持治具２２０は、回動軸部２２３ｂを支点として、図１５に示す板部材２２１および２２２を開放させた状態と、図１２および図１３に示す板部材２２１および２２２を閉じた状態とを、変更可能に構成されている。すなわち、閉じた状態とは、板部材２２１および２２２が略平行となり、板部材２２１および２２２の両方がコイル１０に当接（近接）する状態（コイル１０を保持した状態）を意味する。また、開放させた状態とは、回動軸部２２３ｂまわりに板部材２２１および２２２の少なくとも一方が回動して、板部材２２１または２２２のいずれかがコイル１０に接触しない状態（コイル１０を保持していない状態）を意味する。 Then, the coil holding jig 220 has a state in which the plate members 221 and 222 shown in FIG. 15 are opened and a state in which the plate members 221 and 222 shown in FIGS. 12 and 13 are closed with the rotating shaft portion 223b as a fulcrum. And can be changed. That is, the closed state means a state in which the plate members 221 and 222 are substantially parallel to each other and both the plate members 221 and 222 are in contact with (close to) the coil 10 (a state in which the coil 10 is held). Further, the opened state means a state in which at least one of the plate members 221 and 222 is rotated around the rotation shaft portion 223b and either plate member 221 or 222 is not in contact with the coil 10 (holding the coil 10). It means the state of not doing).
　（第１コイル配置部の構成）
　製造装置２００は、図１６に示すように、外径側スロット収容部１１ａをスロット２１に配置するための第１コイル配置部２３０を備える。本実施形態では、第１コイル配置部２３０は、コイル保持治具２２０が取り付けられたコイル１０の外径側スロット収容部１１ａを、スロット２１に配置するように構成されている。具体的には、製造装置２００は、第１コイル配置部２３０は、治具押圧部材２３１と、押圧位置規制部材２３２と、コイル位置固定治具２３３とを含む。 (Structure of first coil arrangement part)
As shown in FIG. 16, the manufacturing apparatus 200 includes a first coil arranging portion 230 for arranging the outer diameter side slot accommodating portion 11 a in the slot 21. In the present embodiment, the first coil placement portion 230 is configured to place the outer diameter side slot housing portion 11 a of the coil 10 to which the coil holding jig 220 is attached in the slot 21. Specifically, in the manufacturing apparatus 200, the first coil placement unit 230 includes a jig pressing member 231, a pressing position restricting member 232, and a coil position fixing jig 233.
　治具押圧部材２３１は、Ｚ２方向側の端部２３１ａがコイル保持治具２２０の端部２２１ｅおよび２２２ｅに接触した状態で、図示しない駆動装置により、治具押圧部材２３１にＺ２方向に押圧力が加えられることにより、治具押圧部材２３１は、コイル保持治具２２０をＺ２方向に押圧するように構成されている。これにより、第１コイル配置部２３０は、コイル保持治具２２０が取り付けられたコイル１０の外径側スロット収容部１１ａを、スロット２１に軸方向に挿入するように構成されている。 The jig pressing member 231 is applied with a pressing force to the jig pressing member 231 in the Z2 direction by a driving device (not shown) with the end portion 231a on the Z2 direction side in contact with the end portions 221e and 222e of the coil holding jig 220. When added, the jig pressing member 231 is configured to press the coil holding jig 220 in the Z2 direction. As a result, the first coil arranging portion 230 is configured to insert the outer diameter side slot accommodating portion 11 a of the coil 10 to which the coil holding jig 220 is attached into the slot 21 in the axial direction.
　押圧位置規制部材２３２は、図１７および図１８に示すように、治具押圧部材２３１の周方向外側に配置され、治具押圧部材２３１と一体的に移動するように構成されている。そして、第１コイル配置部２３０は、治具押圧部材２３１と一体的に移動する押圧位置規制部材２３２がステータコア２０の端面２０ａ（図９参照）に接触して、治具押圧部材２３１の軸方向の移動を規制することにより、外径側スロット収容部１１ａのスロット２１における軸方向位置を規制するように構成されている。 As shown in FIGS. 17 and 18, the pressing position restricting member 232 is arranged outside the jig pressing member 231 in the circumferential direction, and is configured to move integrally with the jig pressing member 231. Then, in the first coil arranging portion 230, the pressing position regulating member 232, which moves integrally with the jig pressing member 231, comes into contact with the end surface 20a of the stator core 20 (see FIG. 9), so that the jig pressing member 231 has an axial direction. By restricting the movement of the outer diameter side slot accommodating portion 11a, the axial position of the slot 21 in the slot 21 is restricted.
　コイル位置固定治具２３３は、図１６および図１７に示すように、コイル１０の巻回内側を保持するように構成されている。具体的には、図１９に示すように、軸方向に延びる板状部２３３ａと、板状部２３３ａに接続されており周方向（Ａ１方向）に突出する突出部２３３ｂとを含む。突出部２３３ｂは、Ａ１方向に突出する円柱状に形成されている。そして、製造装置２００では、突出部２３３ｂが、コイル１０の巻回内側の側面に当接する（引っ掛かる）ように配置される。これにより、コイル位置固定治具２３３は、コイル１０の軸方向位置を固定した状態で、コイル保持治具２２０をステータコア２０に対してＺ２方向側に移動させることにより、コイル１０をスロット２１に残存させた状態で、コイル保持治具２２０を取り外すことが可能に構成されている。 The coil position fixing jig 233 is configured to hold the winding inner side of the coil 10, as shown in FIGS. 16 and 17. Specifically, as shown in FIG. 19, it includes a plate-shaped portion 233a extending in the axial direction and a protrusion 233b connected to the plate-shaped portion 233a and protruding in the circumferential direction (A1 direction). The protruding portion 233b is formed in a cylindrical shape protruding in the A1 direction. Then, in the manufacturing apparatus 200, the protruding portion 233b is arranged so as to abut (hook) the side surface on the winding inner side of the coil 10. As a result, the coil position fixing jig 233 moves the coil holding jig 220 to the Z2 direction side with respect to the stator core 20 in a state where the axial position of the coil 10 is fixed, so that the coil 10 remains in the slot 21. In this state, the coil holding jig 220 can be removed.
　（固定部切除装置の構成）
　製造装置２００は、図２０および図２１に示すように、絶縁シート３０の固定部３４を切除する固定部切除装置２４０を備える。固定部切除装置２４０は、刃部２４１と、コイル保護材２４２と、クランプ材２４３と、受け材２４４と、切り屑排出材２４５とを含む。 (Structure of fixed part excision device)
As shown in FIGS. 20 and 21, the manufacturing apparatus 200 includes a fixed portion cutting device 240 that cuts the fixed portion 34 of the insulating sheet 30. The fixed portion cutting device 240 includes a blade portion 241, a coil protective material 242, a clamp material 243, a receiving material 244, and a chip discharging material 245.
　刃部２４１は、図２０に示すように、切り屑排出材２４５のＥ方向の両端の各々に設けられ、切り屑排出材２４５からＦ２方向に突出するように配置されている。図２１に示すように、２つのうちの一方の刃部２４１は、Ｆ２方向に見て、絶縁シート３０の固定部３４と第１コイルエンド部絶縁部３２ａとの境界部分３４ａにオーバラップするように配置される。また、他方の刃部２４１は、Ｆ２方向に見て、固定部３４と第２コイルエンド部絶縁部３２ｂとの境界部分３４ａにオーバラップするように配置される。これにより、刃部２４１は、絶縁シート３０の固定部３４と第１コイルエンド部絶縁部３２ａ（第２コイルエンド部絶縁部３２ｂ）との境界部分をＦ２方向に通過することにより、絶縁シート３０から固定部３４を切断して、固定部３４を切除することが可能である。 As shown in FIG. 20, the blade portions 241 are provided at both ends of the chip discharging material 245 in the E direction, and are arranged so as to project from the chip discharging material 245 in the F2 direction. As shown in FIG. 21, one of the two blade portions 241 overlaps with the boundary portion 34a between the fixing portion 34 of the insulating sheet 30 and the first coil end insulating portion 32a when viewed in the F2 direction. Is located in. The other blade portion 241 is arranged so as to overlap the boundary portion 34a between the fixed portion 34 and the second coil end portion insulating portion 32b when viewed in the F2 direction. Accordingly, the blade portion 241 passes through the boundary portion between the fixed portion 34 of the insulating sheet 30 and the first coil end insulating portion 32a (second coil end insulating portion 32b) in the F2 direction, and thus the insulating sheet 30. It is possible to cut the fixing portion 34 from the above and cut off the fixing portion 34.
　コイル保護材２４２は、コイル１０の巻回内側において、刃部２４１とコイル１０とのＧ方向の間に配置されている。これにより、コイル保護材２４２は、刃部２４１が固定部３４を切除する際に、コイル１０が巻回内側に移動（変形）するのを規制することが可能である。 The coil protection material 242 is arranged between the blade portion 241 and the coil 10 in the G direction inside the winding of the coil 10. Accordingly, the coil protection member 242 can regulate the movement (deformation) of the coil 10 inside the winding when the blade 241 cuts off the fixing portion 34.
　クランプ材２４３は、コイル１０の巻回内側において、コイル保護材２４２のＥ方向の両端の各々に配置されている。図２０に示すように、クランプ材２４３は、刃部２４１、コイル保護材２４２および切り屑排出材２４５とともに、Ｆ２方向に移動するように構成されている。なお、クランプ材２４３は、コイル保護材２４２が、Ｆ２方向に移動された後に、刃部２４１および切り屑排出材２４５とともに、Ｆ２方向に移動するように構成してもよい。 The clamp members 243 are arranged inside the winding of the coil 10 at both ends of the coil protective member 242 in the E direction. As shown in FIG. 20, the clamp material 243 is configured to move in the F2 direction together with the blade portion 241, the coil protection material 242, and the chip discharge material 245. The clamp member 243 may be configured to move in the F2 direction together with the blade portion 241 and the chip discharging material 245 after the coil protection member 242 is moved in the F2 direction.
　図２１に示すように、受け材２４４は、コイル１０の巻回内側において、コイル保護材２４２のＥ方向の両端の各々に配置されている。図２０に示すように、受け材２４４は、クランプ材２４３のＦ２方向側に配置されており、クランプ材２４３、刃部２４１、コイル保護材２４２および切り屑排出材２４５がＦ２方向に移動した際に、クランプ材２４３と、第１コイルエンド部絶縁部３２ａ（第２コイルエンド部絶縁部３２ｂ）を介して当接することにより、クランプ材２４３のＦ２方向への移動を規制するように構成されている。これにより、刃部２４１が固定部３４を切除する際に、クランプ材２４３と受け材２４４との間に、固定部３４と第１コイルエンド部絶縁部３２ａ（第２コイルエンド部絶縁部３２ｂ）との境界部分３４ａのＥ１方向側（Ｅ２方向側）の近傍を挟むことが可能である。 As shown in FIG. 21, the receiving members 244 are arranged inside the winding of the coil 10 at both ends in the E direction of the coil protecting member 242. As shown in FIG. 20, the receiving material 244 is arranged on the F2 direction side of the clamp material 243, and when the clamp material 243, the blade portion 241, the coil protection material 242, and the chip discharge material 245 move in the F2 direction. The clamp member 243 is configured to contact the clamp member 243 via the first coil end insulating portion 32a (second coil end insulating portion 32b) to restrict the movement of the clamp member 243 in the F2 direction. There is. Accordingly, when the blade portion 241 cuts off the fixed portion 34, the fixed portion 34 and the first coil end insulating portion 32a (the second coil end insulating portion 32b) are provided between the clamp material 243 and the receiving material 244. It is possible to sandwich the vicinity of the boundary portion 34a with the E1 direction side (E2 direction side).
　切り屑排出材２４５は、クランプ材２４３が受け材２４４に当接した状態で、クランプ材２４３およびコイル保護材２４２に対して、刃部２４１と一体的にＦ２方向に移動するように構成されている。また、切り屑排出材２４５は、２つの刃部２４１のＥ方向の間に配置されている。これにより、切り屑排出材２４５により、切除された固定部３４をＦ２方向側に押し出して、Ｆ２方向側に排出することが可能である。 The chip discharge material 245 is configured to move integrally with the blade portion 241 in the F2 direction with respect to the clamp material 243 and the coil protection material 242 in a state where the clamp material 243 is in contact with the receiving material 244. There is. The chip discharging material 245 is arranged between the two blade portions 241 in the E direction. As a result, it is possible to push out the fixed portion 34 that has been cut off to the F2 direction side by the chip discharge material 245 and discharge it to the F2 direction side.
　（コイル変形装置の構成）
　図２２に示すように、ステータ１００の製造装置２００は、コイル変形装置５０を備える。コイル変形装置５０は、複数のコイルガイド治具５１と、下側回転駆動装置５２と、上側カプラ５３と、コイル押圧装置５４（図２２および図２３参照）と、下側カプラ５５と、シャフト５６とを備える。なお、コイル変形装置５０は、請求の範囲の「第２コイル配置部」および「コイル変形用治具」の一例である。また、コイルガイド治具５１は、請求の範囲の「コイル変形用治具」の一例である。また、コイル押圧装置５４は、請求の範囲の「第２コイル配置部」の一例である。 (Structure of coil deformation device)
As shown in FIG. 22, the manufacturing device 200 of the stator 100 includes a coil deforming device 50. The coil deforming device 50 includes a plurality of coil guide jigs 51, a lower rotation driving device 52, an upper coupler 53, a coil pressing device 54 (see FIGS. 22 and 23), a lower coupler 55, and a shaft 56. With. The coil deforming device 50 is an example of the “second coil disposing portion” and the “coil deforming jig” in the claims. The coil guide jig 51 is an example of the “coil deforming jig” in the claims. Further, the coil pressing device 54 is an example of the “second coil arrangement portion” in the claims.
　図２４に示すように、コイルガイド治具５１は、周方向に沿って隣り合うように互いに独立して複数（本実施形態では４８個）設けられている。そして、複数のコイルガイド治具５１は、それぞれ、Ｚ１方向側から見て、径方向内側に向かって先細る略三角形形状または楔型形状を有する。そして、複数のコイルガイド治具５１同士は、互いに周方向に等角度間隔で離れて配置されており、隙間ＣＬ１が設けられている。隙間ＣＬ１の幅Ｗ３０は、内径側スロット収容部１１ｂの幅Ｗ２１よりも大きく、径方向に沿って略一定の大きさを有する。これにより、隙間ＣＬ１は、内径側スロット収容部１１ｂが、隙間ＣＬ１の径方向の両側に渡って、移動可能に構成されている。言い換えると、隙間ＣＬ１の径方向の両側に、それぞれ、内径側スロット収容部１１ｂが通過可能な開口が設けられている。なお、「隙間ＣＬ１の幅」とは、一のコイルガイド治具５１の周方向の端面５１ａから、一のコイルガイド治具５１に隣り合う他のコイルガイド治具５１の端面５１ａに対向する端面５１ｂまでの距離を意味する。 As shown in FIG. 24, a plurality of coil guide jigs 51 (48 in this embodiment) are provided independently of each other so as to be adjacent to each other along the circumferential direction. The plurality of coil guide jigs 51 each have a substantially triangular shape or a wedge shape that tapers inward in the radial direction when viewed from the Z1 direction side. The plurality of coil guide jigs 51 are arranged at equal angular intervals in the circumferential direction, and a gap CL1 is provided. The width W30 of the clearance CL1 is larger than the width W21 of the inner diameter side slot accommodating portion 11b, and has a substantially constant size in the radial direction. As a result, the clearance CL1 is configured such that the inner diameter side slot accommodating portion 11b is movable across both sides of the clearance CL1 in the radial direction. In other words, the openings through which the inner diameter side slot accommodating portions 11b can pass are provided on both sides of the clearance CL1 in the radial direction. The "width of the clearance CL1" means the end face 51a of one coil guide jig 51 that faces the end face 51a of another coil guide jig 51 adjacent to the one coil guide jig 51. It means the distance to 51b.
　複数のコイルガイド治具５１よりも径方向内側には、空間Ｓが設けられており、空間Ｓにおいて、コイル押圧装置５４の挿入部５４ａが中心軸線方向に移動可能に構成されている。 A space S is provided inside the plurality of coil guide jigs 51 in the radial direction, and the insertion portion 54 a of the coil pressing device 54 is configured to be movable in the central axis direction in the space S.
　また、図２２に示すように、複数のコイルガイド治具５１は、径方向に沿った断面形状が略矩形形状のガイド本体部５１ｃと、ガイド本体部５１ｃからＺ２方向側に突出するとともに、コイルガイド治具５１の下側（Ｚ２方向側）に設けられる下側回転駆動装置５２に接続される下側接続部５１ｄと、ガイド本体部５１ｃからＺ１方向側に突出するとともに、上側カプラ５３に接続される上側接続部５１ｅとを含む。なお、ガイド本体部５１ｃ、下側接続部５１ｄ、および、上側接続部５１ｅは、一体的に形成されている。また、ガイド本体部５１ｃは、中心軸線方向に長さＬ１１を有する。 Further, as shown in FIG. 22, the plurality of coil guide jigs 51 includes a guide main body portion 51c having a substantially rectangular cross-section along the radial direction, a plurality of coil guide jigs 51 protruding from the guide main body portion 51c to the Z2 direction side, and A lower connecting portion 51d connected to a lower rotation drive device 52 provided on the lower side (Z2 direction side) of the guide jig 51, and protruding from the guide main body portion 51c in the Z1 direction side and connected to the upper coupler 53. And the upper connection portion 51e is included. The guide body 51c, the lower connecting portion 51d, and the upper connecting portion 51e are integrally formed. The guide body 51c has a length L11 in the central axis direction.
　また、シャフト５６は、下側回転駆動装置５２および上側カプラ５３の両方を貫通するように中心軸線方向（Ｚ方向）に延びるように設けられている。なお、シャフト５６は、周状に設けられた複数のコイルガイド治具５１の中央を中心軸線方向（Ｚ方向）に延びるように設けられている。 Further, the shaft 56 is provided so as to extend in the central axis direction (Z direction) so as to penetrate both the lower rotation drive device 52 and the upper coupler 53. The shaft 56 is provided so as to extend in the central axis direction (Z direction) at the center of the plurality of circumferentially provided coil guide jigs 51.
　ここで、シャフト５６は、下側回転駆動装置５２からの回転駆動力を上側カプラ５３に伝達するように構成されている。具体的な構成について、以下に説明する。 Here, the shaft 56 is configured to transmit the rotational driving force from the lower rotation driving device 52 to the upper coupler 53. A specific configuration will be described below.
　図２５に示すように、上側カプラ５３は、コイル１０の変形時に、複数のコイルガイド治具５１（上側接続部５１ｅ）の上端部５１ｆ（図２２参照）に取り付けられる。具体的には、上側カプラ５３は、コイルガイド治具５１の上端部５１ｆに取り付けられた状態で、複数のコイルガイド治具５１の各々の上端部５１ｆと嵌合する凹部５３ａを含む。また、上側カプラ５３は、板状のフランジ部材５３ｂと、フランジ部材５３ｂに取り付けられるキャップ部材５３ｃとを含む。図２６に示すように、凹部５３ａは、フランジ部材５３ｂの下面５３ｄ（図２５参照）において周状に沿って隣り合うように複数設けられている。 As shown in FIG. 25, the upper coupler 53 is attached to the upper ends 51f (see FIG. 22) of the plurality of coil guide jigs 51 (upper connecting portions 51e) when the coil 10 is deformed. Specifically, the upper coupler 53 includes a concave portion 53a that is fitted to the upper end portion 51f of the coil guide jig 51 and fits into the upper end portion 51f of each of the plurality of coil guide jigs 51. The upper coupler 53 also includes a plate-shaped flange member 53b and a cap member 53c attached to the flange member 53b. As shown in FIG. 26, a plurality of recesses 53a are provided on the lower surface 53d (see FIG. 25) of the flange member 53b so as to be adjacent to each other along the circumference.
　また、図２５に示すように、キャップ部材５３ｃには、キャップ部材５３ｃとフランジ部材５３ｂとを締結するためのネジ部材（図示せず）が挿入される複数のネジ孔５３ｅが設けられている。なお、キャップ部材５３ｃは、フランジ部材５３ｂの上面５３ｆ（Ｚ１方向側の表面）に締結されている。 Further, as shown in FIG. 25, the cap member 53c is provided with a plurality of screw holes 53e into which screw members (not shown) for fastening the cap member 53c and the flange member 53b are inserted. The cap member 53c is fastened to the upper surface 53f (surface in the Z1 direction side) of the flange member 53b.
　また、フランジ部材５３ｂおよびキャップ部材５３ｃは、それぞれ、上側カプラ５３がコイルガイド治具５１の上端部５１ｆに取り付けられた状態で、シャフト５６が回転駆動力を伝達可能に嵌合される（図２２参照）貫通孔５３ｇおよび貫通孔５３ｈを有する。貫通孔５３ｇと貫通孔５３ｈとは、中心軸線方向から見てオーバラップするように設けられている。 Further, the flange member 53b and the cap member 53c are fitted to the shaft 56 such that the rotational driving force can be transmitted, with the upper coupler 53 attached to the upper end portion 51f of the coil guide jig 51 (FIG. 22). See) Through hole 53g and through hole 53h. The through hole 53g and the through hole 53h are provided so as to overlap each other when viewed from the central axis direction.
　また、図２７（ａ）に示すように、シャフト５６は、シャフト５６の周面５６ａに設けられる凸部５６ｂを含む。凸部５６ｂは、周面５６ａに沿って周状（等角度間隔）に複数設けられている。なお、凸部５６ｂは、径方向外側に向かって先細る形状を有しているが、この形状に限られない。 Further, as shown in FIG. 27( a ), the shaft 56 includes a convex portion 56 b provided on the peripheral surface 56 a of the shaft 56. A plurality of convex portions 56b are provided circumferentially (equal angular intervals) along the circumferential surface 56a. The convex portion 56b has a shape that tapers outward in the radial direction, but is not limited to this shape.
　また、図２７（ｂ）に示すように、上側カプラ５３のキャップ部材５３ｃの貫通孔５３ｈには、シャフト５６が嵌合された状態で、シャフト５６の凸部５６ｂと係合する凹部５３ｉが設けられている。凹部５３ｉは、貫通孔５３ｈの周面５３ｊに沿って周状（等角度間隔）に複数設けられている。また、複数の凹部５３ｉの各々は、中心軸線方向（Ｚ方向）に延びるように設けられている。 As shown in FIG. 27B, a recess 53i that engages with the protrusion 56b of the shaft 56 in the state where the shaft 56 is fitted is provided in the through hole 53h of the cap member 53c of the upper coupler 53. Has been. A plurality of recesses 53i are provided circumferentially (at equal angular intervals) along the peripheral surface 53j of the through hole 53h. Further, each of the plurality of recesses 53i is provided so as to extend in the central axis direction (Z direction).
　また、上側カプラ５３のフランジ部材５３ｂの貫通孔５３ｇには、シャフト５６が嵌合された状態で、シャフト５６の凸部５６ｂと係合する凹部５３ｋ（図２６参照）が設けられている。凹部５３ｋは、貫通孔５３ｈの周面５３ｌ（図２６参照）に沿って周状に複数設けられている。また、複数の凹部５３ｋの各々は、中心軸線方向（Ｚ方向）に延びるように設けられている。 Further, a recess 53k (see FIG. 26) that engages with the protrusion 56b of the shaft 56 when the shaft 56 is fitted is provided in the through hole 53g of the flange member 53b of the upper coupler 53. A plurality of recesses 53k are circumferentially provided along the peripheral surface 53l (see FIG. 26) of the through hole 53h. Further, each of the plurality of recesses 53k is provided so as to extend in the central axis direction (Z direction).
　凸部５６ｂと、凹部５３ｉおよび凹部５３ｋとが係合することにより、シャフト５６の回転力が上側カプラ５３（キャップ部材５３ｃ）に伝達され、上側カプラ５３が回転する。その結果、上側カプラ５３および下側回転駆動装置５２の各々が回転することにより、コイルガイド治具５１は上下方向の両端において回転駆動力を受ける。その結果、複数のコイルガイド治具５１が回転する。なお、凹部５３ｉおよび凹部５３ｋの各々は、凸部５６ｂと同様に、径方向外側に向かって先細る形状を有している。また、キャップ部材５３ｃは、凹部５３ｉおよび凹部５３ｋが中心軸線方向から見てオーバラップするように、フランジ部材５３ｂに締結されている。なお、図２７（ｂ）では、簡略化のため、ネジ孔５３ｅの図示を省略している。 By engaging the convex portion 56b with the concave portion 53i and the concave portion 53k, the rotational force of the shaft 56 is transmitted to the upper coupler 53 (cap member 53c), and the upper coupler 53 rotates. As a result, each of the upper coupler 53 and the lower rotation driving device 52 rotates, so that the coil guide jig 51 receives a rotation driving force at both ends in the vertical direction. As a result, the plurality of coil guide jigs 51 rotate. Each of the concave portions 53i and the concave portions 53k has a shape that tapers outward in the radial direction, similarly to the convex portion 56b. The cap member 53c is fastened to the flange member 53b such that the recess 53i and the recess 53k overlap each other when viewed from the central axis direction. 27(b), the screw hole 53e is not shown for simplification.
　なお、Ｚ１方向側から見て、キャップ部材５３ｃおよびフランジ部材５３ｂの各々は、円形形状を有している。また、キャップ部材５３ｃの直径ｒ１（図２７（ｂ）参照）およびフランジ部材５３ｂの直径ｒ２（図２７（ｂ）参照）の各々は、円環形状を有するステータコア２０の内周側の直径ｒ３（図１参照）よりも小さい。すなわち、上側カプラ５３がコイルガイド治具５１に取り付けられた状態において、上側カプラ５３の全体は、Ｚ１方向側から見てステータコア２０に取り囲まれる。 Note that each of the cap member 53c and the flange member 53b has a circular shape when viewed from the Z1 direction side. Further, each of the diameter r1 of the cap member 53c (see FIG. 27B) and the diameter r2 of the flange member 53b (see FIG. 27B) is the inner peripheral diameter r3 of the stator core 20 having an annular shape ( (See FIG. 1). That is, when the upper coupler 53 is attached to the coil guide jig 51, the entire upper coupler 53 is surrounded by the stator core 20 when viewed from the Z1 direction side.
　また、図２８に示すように、下側カプラ５５は、コイル１０の変形時に、下側回転駆動装置５２に取り付けられる。下側カプラ５５は、コイル１０の変形時に、シャフト５６を介して下側回転駆動装置５２の回転駆動力を上側カプラ５３に伝達するように構成されている。 Further, as shown in FIG. 28, the lower coupler 55 is attached to the lower rotation drive device 52 when the coil 10 is deformed. The lower coupler 55 is configured to transmit the rotational driving force of the lower rotary drive device 52 to the upper coupler 53 via the shaft 56 when the coil 10 is deformed.
　具体的には、下側カプラ５５は、コイル１０の変形時にシャフト５６が挿入される貫通孔５５ａを含む。また、下側カプラ５５は、下側回転駆動装置５２と締結するための複数のネジ孔５５ｂを含む。ネジ孔５５ｂに図示しないネジ部材が挿入されることにより、下側カプラ５５は、下側回転駆動装置５２に締結される。 Specifically, the lower coupler 55 includes a through hole 55a into which the shaft 56 is inserted when the coil 10 is deformed. The lower coupler 55 also includes a plurality of screw holes 55b for fastening the lower rotation drive device 52. The lower coupler 55 is fastened to the lower rotation drive device 52 by inserting a screw member (not shown) into the screw hole 55b.
　また、図２９に示すように、下側カプラ５５の貫通孔５５ａの周面５５ｃには、中心軸線方向（Ｚ方向）に延びる複数の凹部５５ｄが周状（等角度間隔）に設けられている。凹部５５ｄと、シャフト５６の凸部５６ｂ（図２７（ａ）参照）とが係合することにより、下側回転駆動装置５２の回転駆動力が、下側カプラ５５を介してシャフト５６に伝達される。その結果、下側カプラ５５を介してシャフト５６に伝達された回転駆動力によって、上側カプラ５３が回転する。 Further, as shown in FIG. 29, on the peripheral surface 55c of the through hole 55a of the lower coupler 55, a plurality of recesses 55d extending in the central axis direction (Z direction) are provided circumferentially (at equal angular intervals). .. By engaging the concave portion 55d and the convex portion 56b of the shaft 56 (see FIG. 27A), the rotational driving force of the lower rotation driving device 52 is transmitted to the shaft 56 via the lower coupler 55. It As a result, the upper coupler 53 is rotated by the rotational driving force transmitted to the shaft 56 via the lower coupler 55.
　また、図２３に示すように、コイル押圧装置５４は、挿入方向（Ｚ２方向）に先細るテーパ形状を有する挿入部５４ａを含む。挿入部５４ａは、挿入方向側（Ｚ２方向側）の先端側がテーパ状に形成されている。具体的には、挿入部５４ａは、円筒形状の円筒部１５４と、円筒部１５４を周状に取り囲むように円筒部１５４に接続され、挿入方向に先細る複数（本実施形態では４８個）の板状の羽部２５４とを含む。複数の羽部２５４は、中心軸線方向から見て、円筒部１５４から放射状（図３０参照）に延びるように設けられている。また、複数の羽部２５４は、中心軸線方向（Ｚ１方向側）から見て、コイルガイド治具５１同士の隙間ＣＬ１（図５５参照）とオーバラップするように設けられている。 Also, as shown in FIG. 23, the coil pressing device 54 includes an insertion portion 54a having a tapered shape that tapers in the insertion direction (Z2 direction). The tip of the insertion portion 54a on the insertion direction side (Z2 direction side) is tapered. Specifically, the insertion portion 54a is connected to the cylindrical portion 154 so as to circumferentially surround the cylindrical portion 154 and a plurality of (48 in the present embodiment) tapered in the insertion direction. A plate-shaped wing portion 254 is included. The plurality of wing portions 254 are provided so as to extend radially (see FIG. 30) from the cylindrical portion 154 when viewed from the central axis direction. Further, the plurality of wing portions 254 are provided so as to overlap with the clearance CL1 (see FIG. 55) between the coil guide jigs 51 when viewed from the central axis direction (Z1 direction side).
　挿入部５４ａは、中心軸線方向（Ｚ２方向側）に移動されることにより、ステータコア２０の内側に挿入される。また、挿入部５４ａは、挿入時において、内径側スロット収容部１１ｂを、径方向外側の外径側スロット収容部１１ａが配置されたスロット２１から周方向に離れた位置に位置するスロット２１側に押圧する。 The insertion portion 54a is inserted in the stator core 20 by being moved in the central axis direction (Z2 direction side). Further, the insertion portion 54a is configured such that, when the insertion portion 54a is inserted, the inner diameter side slot accommodating portion 11b is positioned on the side of the slot 21 located at a position distant in the circumferential direction from the slot 21 in which the outer diameter side slot accommodating portion 11a on the radial outside is arranged. Press.
　具体的には、コイル押圧装置５４は、コイルガイド治具５１の径方向内側に配置されている複数（本実施形態では４８個）の押圧部５４ｂを含む。複数の押圧部５４ｂの各々は、互いに異なるスロット２１の径方向内側に配置されている。そして、挿入部５４ａがＺ２方向側に移動することにより、押圧部５４ｂは、挿入部５４ａ（羽部２５４）により径方向外側に押圧され、隣り合うコイルガイド治具５１同士の隙間ＣＬ１に進入（図５５参照）する。これにより、内径側スロット収容部１１ｂは、押圧部５４ｂにより径方向内側から径方向外側に押圧される。 Specifically, the coil pressing device 54 includes a plurality of (48 in the present embodiment) pressing portions 54b arranged inside the coil guide jig 51 in the radial direction. Each of the plurality of pressing portions 54b is arranged inside the different slots 21 in the radial direction. Then, when the insertion portion 54a moves in the Z2 direction, the pressing portion 54b is pressed radially outward by the insertion portion 54a (wing portion 254) and enters the gap CL1 between the adjacent coil guide jigs 51 ( (See FIG. 55). As a result, the inner diameter side slot accommodating portion 11b is pressed from the radially inner side to the radially outer side by the pressing portion 54b.
　ここで、挿入部５４ａは、中心軸線方向（Ｚ方向）に延びるとともに、挿入時においてシャフト５６が挿入される挿入孔５４ｃを含む。なお、挿入方向とは反対側（Ｚ１方向側）の挿入孔５４ｃの直径ｒ４は、挿入方向側（Ｚ２方向側）の挿入孔５４ｃの直径ｒ５よりも大きい。 Here, the insertion portion 54a extends in the central axis direction (Z direction) and includes an insertion hole 54c into which the shaft 56 is inserted at the time of insertion. The diameter r4 of the insertion hole 54c on the side opposite to the insertion direction (Z1 direction side) is larger than the diameter r5 of the insertion hole 54c on the insertion direction side (Z2 direction side).
　また、図３１に示すように、ステータ１００の製造装置２００は、ウェッジ部材２１ｅを保持するウェッジ保持部材５７を備える。ウェッジ保持部材５７の中心軸線方向（Ｚ方向）の長さＬ４２は、ウェッジ部材２１ｅの中心軸線方向の長さＬ４３よりも大きい。 Further, as shown in FIG. 31, the manufacturing device 200 of the stator 100 includes a wedge holding member 57 that holds the wedge member 21e. The length L42 of the wedge holding member 57 in the central axis direction (Z direction) is larger than the length L43 of the wedge member 21e in the central axis direction.
　また、ウェッジ保持部材５７の中心軸線方向（Ｚ方向）の長さＬ４２は、ステータコア２０の中心軸線方向の長さＬ１０（図２２参照）よりも大きい。これにより、後述するようにウェッジ保持部材５７により内径側スロット収容部１１ｂを径方向内側から押圧する際に、ステータコア２０から中心軸線方向（Ｚ１方向側およびＺ２方向側）に突出するコイルエンド部１２がウェッジ保持部材５７により押圧されて拡張される。 The length L42 of the wedge holding member 57 in the central axis direction (Z direction) is larger than the length L10 of the stator core 20 in the central axis direction (see FIG. 22). As a result, the coil end portion 12 protruding from the stator core 20 in the central axis direction (Z1 direction side and Z2 direction side) when the inner diameter side slot accommodating portion 11b is pressed from the inner side in the radial direction by the wedge holding member 57 as described later. Are pressed and expanded by the wedge holding member 57.
　ウェッジ部材２１ｅは、ウェッジ保持部材５７の径方向外側の表面５７ａに設けられた段差部５７ｂに配置されている。ウェッジ部材２１ｅは、段差部５７ｂに配置されていることにより、ウェッジ保持部材５７の中心軸線方向（Ｚ方向）における中央よりも上側（Ｚ１方向側）の部分５７ｃに設けられている。なお、ウェッジ保持部材５７のうち、部分５７ｃよりも下側（Ｚ２方向側）の部分を、以下では部分５７ｄとする。 The wedge member 21e is arranged on a step portion 57b provided on the radially outer surface 57a of the wedge holding member 57. Since the wedge member 21e is arranged in the step portion 57b, the wedge member 21e is provided in the portion 57c above the center (Z1 direction side) of the center of the wedge holding member 57 in the central axis direction (Z direction). In the wedge holding member 57, a portion below the portion 57c (Z2 direction side) will be referred to as a portion 57d below.
　また、部分５７ｄは、部分５７ｃに対して、ウェッジ部材２１ｅを開口部２１ａに配置する際のウェッジ保持部材５７の移動方向側（Ｚ２方向側）に設けられている。 Further, the portion 57d is provided on the moving direction side (Z2 direction side) of the wedge holding member 57 when the wedge member 21e is arranged in the opening 21a with respect to the portion 57c.
　また、図３２に示すように、ウェッジ部材２１ｅが段差部５７ｂに配置されている状態で、ウェッジ部材２１ｅに設けられた凹部２１ｆと、ウェッジ保持部材５７に設けられた凸部５７ｅとが係合することにより、ウェッジ部材２１ｅが仮止めされている。凹部２１ｆおよび凸部５７ｅの各々は、ウェッジ部材２１ｅの中心軸線方向の両端側にそれぞれ設けられている。 Further, as shown in FIG. 32, in a state where the wedge member 21e is arranged in the step portion 57b, the concave portion 21f provided in the wedge member 21e and the convex portion 57e provided in the wedge holding member 57 are engaged with each other. By doing so, the wedge member 21e is temporarily fixed. Each of the concave portion 21f and the convex portion 57e is provided on each end side of the wedge member 21e in the central axis direction.
　また、ウェッジ保持部材５７は、中心軸線方向（Ｚ方向）から見て、内径側スロット収容部１１ｂの径方向内側に配置されている。具体的には、ウェッジ保持部材５７は、中心軸線方向から見て、径方向において、内径側スロット収容部１１ｂ（スロット２１）と押圧部５４ｂとにより挟まれるように配置（図２４参照）されている。詳細には、ウェッジ保持部材５７は、押圧部５４ｂが挿入部５４ａにより押圧される前は、コイルガイド治具５１の下側接続部５１ｄに設けられた段差部５１ｇ（図２２参照）において、周方向に隣接するガイド本体部５１ｃに挟まれるように（隙間ＣＬ１に）配置されている。なお、ウェッジ保持部材５７は、複数の内径側スロット収容部１１ｂ（隙間ＣＬ１）の各々に対応するように複数（本実施形態では４８個）設けられている。 Further, the wedge holding member 57 is arranged inside of the inner diameter side slot accommodating portion 11b in the radial direction when viewed from the central axis direction (Z direction). Specifically, the wedge holding member 57 is arranged so as to be sandwiched by the inner diameter side slot housing portion 11b (slot 21) and the pressing portion 54b in the radial direction when viewed from the central axis direction (see FIG. 24). There is. More specifically, the wedge holding member 57 has a stepped portion 51g (see FIG. 22) provided on the lower connection portion 51d of the coil guide jig 51 before the pressing portion 54b is pressed by the insertion portion 54a. The guide main body portions 51c adjacent to each other in the direction are arranged (in the clearance CL1). A plurality of wedge holding members 57 (48 in the present embodiment) are provided so as to correspond to each of the plurality of inner diameter side slot accommodating portions 11b (gap CL1).
　また、図２３に示すように、ステータ１００の製造装置２００は、中心軸線方向（Ｚ方向）から見て、スロット２１の開口部２１ａ（図３参照）と周方向に隣接して設けられるトグル機構５４ｄを備える。トグル機構５４ｄは、複数のコイルガイド治具５１の各々に対応するように複数（本実施形態では４８個）設けられている。具体的には、中心軸線方向から見て、トグル機構５４ｄは、コイルガイド治具５１のガイド本体部５１ｃの径方向外側の端部とオーバラップする（図２４参照）ように設けられている。また、トグル機構５４ｄは、中心軸線方向から見て、周方向に隣接する羽部２５４に挟まれる位置（図３０参照）に設けられている。 Further, as shown in FIG. 23, the manufacturing apparatus 200 of the stator 100 has a toggle mechanism provided adjacent to the opening 21a (see FIG. 3) of the slot 21 in the circumferential direction when viewed from the central axis direction (Z direction). 54d. A plurality of toggle mechanisms 54d (48 in the present embodiment) are provided so as to correspond to each of the plurality of coil guide jigs 51. Specifically, the toggle mechanism 54d is provided so as to overlap with the radially outer end of the guide main body 51c of the coil guide jig 51 when viewed from the central axis direction (see FIG. 24). Further, the toggle mechanism 54d is provided at a position (see FIG. 30) sandwiched between the wing portions 254 adjacent to each other in the circumferential direction when viewed from the central axis direction.
　複数のトグル機構５４ｄの各々は、挿入部５４ａに取り付けられており、挿入部５４ａ（円筒部１５４）の外周面５４ｅに沿うように設けられている。すなわち、複数のトグル機構５４ｄは、挿入部５４ａを周状に取り囲むように設けられている。 Each of the plurality of toggle mechanisms 54d is attached to the insertion portion 54a, and is provided along the outer peripheral surface 54e of the insertion portion 54a (cylindrical portion 154). That is, the plurality of toggle mechanisms 54d are provided so as to circumferentially surround the insertion portion 54a.
　また、図３３に示すように、複数のトグル機構５４ｄの各々には、中心軸線方向（Ｚ方向）に延びる板状部分５４ｆと、板状部分５４ｆのコイルガイド治具５１側（Ｚ２方向側）の端部に取り付けられているトグル５４ｇとが設けられている。 Further, as shown in FIG. 33, each of the plurality of toggle mechanisms 54d has a plate-shaped portion 54f extending in the central axis direction (Z direction) and a coil guide jig 51 side (Z2 direction side) of the plate-shaped portion 54f. And a toggle 54g attached to the end of the.
　トグル５４ｇは、板状部分５４ｆに取り付けられている第１部分５４ｈと、第１部分５４ｈを周方向に挟むように設けられる一対の第２部分５４ｉとにより構成されている。一対の第２部分５４ｉは、一対の第２部分５４ｉと第１部分５４ｈとを貫通するピン５４ｊを軸に回動可能に構成されている。なお、図示は省略するが、第１部分５４ｈおよび一対の第２部分５４ｉの各々には、ピン５４ｊが貫通する貫通孔が設けられている。 The toggle 54g is composed of a first portion 54h attached to the plate portion 54f and a pair of second portions 54i provided so as to sandwich the first portion 54h in the circumferential direction. The pair of second portions 54i is configured to be rotatable about a pin 54j that penetrates the pair of second portions 54i and the first portion 54h. Although not shown, each of the first portion 54h and the pair of second portions 54i is provided with a through hole through which the pin 54j passes.
　これにより、一対の第２部分５４ｉが（Ｚ１方向側から移動して）ガイド本体部５１ｃに当接することにより、一対の第２部分５４ｉが互いに反対方向（周方向から見て時計回りと反時計回り）に回動する。その結果、周方向から見て互いに交差するように固定されていた一対の第２部分５４ｉが、ガイド本体部５１ｃにより下方側（Ｚ２方向側）から押圧され、互いに交差する角度が大きくなるように広げられる。これにより、図３４に示すように、一対の第２部分５４ｉの一方の端部により、ステータコア２０からＺ１方向側に突出しているコイルエンド部１２が径方向内側から径方向外側に押圧される。 As a result, the pair of second portions 54i come into contact with the guide main body portion 51c (moving from the Z1 direction side), so that the pair of second portions 54i are in mutually opposite directions (clockwise and counterclockwise when viewed from the circumferential direction). Rotate). As a result, the pair of second portions 54i, which are fixed so as to intersect with each other when viewed from the circumferential direction, are pressed from the lower side (Z2 direction side) by the guide main body 51c so that the angle at which they intersect with each other becomes large. Can be expanded. As a result, as shown in FIG. 34, the coil ends 12 projecting from the stator core 20 in the Z1 direction are pressed from the radially inner side to the radially outer side by the one ends of the pair of second portions 54i.
　また、図２３に示すように、ステータ１００の製造装置２００は、挿入部５４ａに取り付けられているとともに、挿入部５４ａ（円筒部１５４）の外周面５４ｅに沿うように設けられるウェッジ打ち込み部材５４ｋを備える。ウェッジ打ち込み部材５４ｋは、複数のウェッジ保持部材５７に対応するように複数（本実施形態では４８個）設けられている。複数のウェッジ保持部材５７の各々は、外周面５４ｅに沿って中心軸線方向にスライド移動可能に構成されている。 Further, as shown in FIG. 23, the manufacturing device 200 of the stator 100 includes a wedge driving member 54k attached to the insertion portion 54a and provided along the outer peripheral surface 54e of the insertion portion 54a (cylindrical portion 154). Prepare A plurality of wedge driving members 54k (48 in the present embodiment) are provided so as to correspond to the plurality of wedge holding members 57. Each of the plurality of wedge holding members 57 is configured to be slidable in the central axis direction along the outer peripheral surface 54e.
　また、ステータ１００の製造装置２００には、挿入部５４ａに取り付けられているとともに挿入部５４ａ（円筒部１５４）の外周面５４ｅに沿うように設けられるスリーブ５４ｌを含む。スリーブ５４ｌは、挿入部５４ａを取り囲むように設けられる円筒形状を有している。また、スリーブ５４ｌは、中心軸線方向にスライド移動することにより、複数のウェッジ打ち込み部材５４ｋを上方側から押圧するように構成されている。これにより、複数のウェッジ打ち込み部材５４ｋの各々は、スリーブ５４ｌと一体的にスライド移動するように構成されている。 Further, the manufacturing apparatus 200 of the stator 100 includes a sleeve 54l attached to the insertion portion 54a and provided along the outer peripheral surface 54e of the insertion portion 54a (cylindrical portion 154). The sleeve 54l has a cylindrical shape provided so as to surround the insertion portion 54a. Further, the sleeve 54l is configured to press the plurality of wedge driving members 54k from above by slidingly moving in the central axis direction. Thereby, each of the plurality of wedge driving members 54k is configured to slide integrally with the sleeve 54l.
　また、ステータ１００の製造装置２００は、挿入部５４ａに取り付けられているとともに挿入部５４ａ（円筒部１５４）の外周面５４ｅに沿うように設けられるスリーブ５４ｍを含む。スリーブ５４ｍは、挿入部５４ａを取り囲むように設けられる円筒形状を有している。また、スリーブ５４ｍは、中心軸線方向にスライド移動することにより、複数のトグル機構５４ｄ（板状部分５４ｆ）を上方側から押圧するように構成されている。これにより、複数のトグル機構５４ｄ（板状部分５４ｆ）の各々は、スリーブ５４ｍと一体的にスライド移動するように構成されている。 Further, the manufacturing device 200 of the stator 100 includes a sleeve 54m which is attached to the insertion portion 54a and is provided along the outer peripheral surface 54e of the insertion portion 54a (cylindrical portion 154). The sleeve 54m has a cylindrical shape provided so as to surround the insertion portion 54a. The sleeve 54m is configured to press the plurality of toggle mechanisms 54d (plate-shaped portions 54f) from above by slidingly moving in the central axis direction. Accordingly, each of the plurality of toggle mechanisms 54d (plate-shaped portion 54f) is configured to slide integrally with the sleeve 54m.
　ここで、挿入部５４ａ、トグル機構５４ｄ（スリーブ５４ｍ）、および、ウェッジ打ち込み部材５４ｋ（スリーブ５４ｌ）は、互いに独立して中心軸線方向（Ｚ方向）に沿って移動可能に構成されている。すなわち、挿入部５４ａ、トグル機構５４ｄ（スリーブ５４ｍ）、および、ウェッジ打ち込み部材５４ｋ（スリーブ５４ｌ）の各々は、移動するタイミングおよび移動量を互いに異ならせることが可能である。すなわち、トグル機構５４ｄ（スリーブ５４ｍ）、および、ウェッジ打ち込み部材５４ｋ（スリーブ５４ｌ）の各々は、挿入部５４ａに取り付けられているので挿入部５４ａの移動に伴って移動されるとともに、挿入部５４ａ（円筒部１５４）の外周面５４ｅに沿って挿入部５４ａの移動とは独立して移動可能である。 Here, the insertion portion 54a, the toggle mechanism 54d (sleeve 54m), and the wedge driving member 54k (sleeve 54l) are configured to be movable independently of each other along the central axis direction (Z direction). That is, each of the insertion portion 54a, the toggle mechanism 54d (sleeve 54m), and the wedge driving member 54k (sleeve 54l) can have different timings and amounts of movement. That is, since each of the toggle mechanism 54d (sleeve 54m) and the wedge driving member 54k (sleeve 54l) is attached to the insertion portion 54a, it is moved along with the movement of the insertion portion 54a and the insertion portion 54a ( It is movable along the outer peripheral surface 54e of the cylindrical portion 154) independently of the movement of the insertion portion 54a.
　（移動規制治具の構成）
　製造装置２００は、図３５～図４３に示すように、外径側スロット収容部１１ａの径方向内側への移動を規制する移動規制治具２６０を備える。 (Structure of movement restriction jig)
As shown in FIGS. 35 to 43, the manufacturing apparatus 200 includes a movement restricting jig 260 that restricts the radially inward movement of the outer diameter side slot accommodating portion 11a.
　移動規制治具２６０は、図３５に示すように、ティース２２の端面２０ａに配置されている。具体的には、移動規制治具２６０は、ステータコア２０の軸方向両側（図２２参照）の端面２０ａにそれぞれ配置されている。そして、移動規制治具２６０は、図３６に示すように、外径側スロット収容部１１ａの径方向内側への移動を規制する規制状態と、図３７および図３８に示すように、外径側スロット収容部１１ａの径方向内側への移動を規制しない非規制状態とを、回動されることにより切り替えるように構成されている。 The movement restriction jig 260 is arranged on the end surface 20a of the tooth 22, as shown in FIG. Specifically, the movement restricting jigs 260 are respectively arranged on the end surfaces 20a of the stator core 20 on both axial sides (see FIG. 22). The movement restricting jig 260 restricts the radially inward movement of the outer diameter side slot accommodating portion 11a as shown in FIG. 36 and the outer diameter side as shown in FIGS. It is configured to switch between a non-restricted state in which the inward movement of the slot housing portion 11a is not regulated by being rotated.
　具体的には、移動規制治具２６０は、径方向に沿った回動軸線Ｃ２回りに回動するとともに、ステータコア２０の径方向（Ｂ方向）に延びる棒状部２６１と、図３６に示すように、棒状部２６１の先端部２６１ａに設けられ、外径側スロット収容部１１ａの径方向の移動を規制する規制部２６２とを含む。また、移動規制治具２６０は、規制治具本体部２６３と、締結部材２６４と、回動用治具２６５（図４３参照）とを含む。 Specifically, the movement restricting jig 260 rotates about a rotation axis C2 along the radial direction, and also has a rod-shaped portion 261 extending in the radial direction (B direction) of the stator core 20, and as shown in FIG. The rod-shaped portion 261 includes a regulating portion 262 provided at the tip portion 261a and regulating the radial movement of the outer diameter side slot accommodating portion 11a. Further, the movement restricting jig 260 includes a restricting jig body portion 263, a fastening member 264, and a rotating jig 265 (see FIG. 43).
　そして、移動規制治具２６０は、棒状部２６１が回動されることにより、規制部２６２がステータコア２０の軸方向外側（図３７および図３８では、Ｚ１方向）に突出する非規制状態と、規制部２６２が周方向一方側（図３５および図３６では、Ａ２方向）に突出する規制状態とが切り替えられるように構成されている。 The movement restricting jig 260 has a non-restricting state in which the restricting portion 262 projects outward in the axial direction of the stator core 20 (Z1 direction in FIGS. 37 and 38) when the rod-shaped portion 261 is rotated. The part 262 is configured to be switched between a restricted state in which the part 262 protrudes to one side in the circumferential direction (A2 direction in FIGS. 35 and 36).
　棒状部２６１は、図４０および図４１に示すように、ステータコア２０の径方向に延びる円柱状または円筒状に形成されている。そして、棒状部２６１の直径Ｄ１は、ティース２２の周方向の幅Ｗ４１以下の大きさである。 As shown in FIGS. 40 and 41, the rod-shaped portion 261 is formed in a columnar shape or a cylindrical shape extending in the radial direction of the stator core 20. The diameter D1 of the rod-shaped portion 261 is equal to or smaller than the circumferential width W41 of the tooth 22.
　規制部２６２は、突出する方向に先細り形状を有する。そして、規制部２６２の厚みｔ１（最も厚みが大きい部分の厚み）は、棒状部２６１の直径Ｄ１よりも小さい。また、規制部２６２は、図３９に示すように、平板状に形成されている。そして、規制部２６２のうちの棒状部２６１との境界部分（図３９の点線部分）の径方向の長さＬ５１は、規制部２６２のうちの周方向先端部の径方向の長さＬ５２よりも大きい。ここで、境界部分とは、規制部２６２のうちの棒状部２６１から突出している部分（露出している部分）である第１部分２６２ａと、規制部２６２のうちの棒状部２６１の内部に配置されている部分である第２部分２６２ｂとの境界を意味するものとする。 The restriction portion 262 has a tapered shape in the protruding direction. The thickness t1 (thickness of the thickest portion) of the restriction portion 262 is smaller than the diameter D1 of the rod-shaped portion 261. Further, the restriction portion 262 is formed in a flat plate shape as shown in FIG. 39. The radial length L51 of the boundary portion (dotted line portion in FIG. 39) of the restriction portion 262 with the rod-shaped portion 261 is greater than the radial length L52 of the circumferential tip of the restriction portion 262. large. Here, the boundary portion is disposed inside the rod-shaped portion 261 of the regulation portion 262 and the first portion 262a that is a portion (exposed portion) of the regulation portion 262 that projects from the rod-shaped portion 261. It means a boundary with the second portion 262b, which is a portion that is formed.
　また、規制部２６２は、複数の締結用穴２６２ｃが設けられている。締結用穴２６２ｃに、棒状部２６１を介して締結部材２６４（図３６参照）が締結されることにより、棒状部２６１と規制部２６２とが互いに固定されている。 Further, the restriction portion 262 is provided with a plurality of fastening holes 262c. The fastening member 264 (see FIG. 36) is fastened to the fastening hole 262c via the rod-shaped portion 261 so that the rod-shaped portion 261 and the restriction portion 262 are fixed to each other.
　規制治具本体２６３は、ガイド部２６３ａと、回動機構部２６３ｂと、ローラー部２６３ｃとを含む。ガイド部２６３ａは、棒状部２６１が回動可能に、棒状部２６１の周方向両側および軸方向両側を保持するように構成されている。また、規制治具本体２６３は、図示しない駆動装置により、棒状部２６１がステータコア２０の径方向に沿って、規制治具本体２６３に対して移動可能に構成されている。すなわち、ガイド部２６３ａは、棒状部２６１の回動および径方向の移動を案内する機能を有する。また、規制治具本体２６３は、図示しない駆動装置によって、ステータコア２０に対して径方向に移動可能に構成されている。 The regulation jig body 263 includes a guide portion 263a, a rotation mechanism portion 263b, and a roller portion 263c. The guide portion 263a is configured such that the rod-shaped portion 261 is rotatable and holds both sides in the circumferential direction and both sides in the axial direction of the rod-shaped portion 261. Further, the regulation jig body 263 is configured such that the rod-shaped portion 261 can be moved with respect to the regulation jig body 263 along the radial direction of the stator core 20 by a driving device (not shown). That is, the guide portion 263a has a function of guiding the rotation and the radial movement of the rod-shaped portion 261. Further, the regulation jig body 263 is configured to be movable in the radial direction with respect to the stator core 20 by a driving device (not shown).
　回動機構部２６３ｂは、図４２に示すように、径方向に見て、略Ｌ字状に形成されている。そして、回動機構部２６３ｂは、回動用治具２６５に接続されており、回動用治具２６５の回動（ステータコア２０の周方向回りの回動）に連動して、回動機構部２６３ｂの向きが変更される（回動する）ように構成されている。そして、回動機構部２６３ｂは、棒状部２６１に固定されており、回動機構部２６３ｂがＨ１方向に回動することにより、棒状部２６１が連動してＨ１方向に回動する。すなわち、回動用治具２６５がＡ１方向に回動することにより、棒状部２６１がＨ１方向に回動（図４２（ａ）の状態から図４２（ｂ）の状態に変化）し、回動用治具２６５がＡ２方向に回動することにより、棒状部２６１がＨ２方向に回動（図４２（ｂ）の状態から図４２（ａ）の状態に変化）する。 As shown in FIG. 42, the rotating mechanism portion 263b is formed in a substantially L shape when viewed in the radial direction. The rotation mechanism portion 263b is connected to the rotation jig 265, and is interlocked with the rotation of the rotation jig 265 (rotation of the stator core 20 around the circumferential direction). The direction is changed (rotated). The rotating mechanism portion 263b is fixed to the rod-shaped portion 261, and when the rotating mechanism portion 263b rotates in the H1 direction, the rod-shaped portion 261 interlocks and rotates in the H1 direction. That is, when the rotating jig 265 rotates in the A1 direction, the rod-shaped portion 261 rotates in the H1 direction (changes from the state of FIG. 42(a) to the state of FIG. 42(b)), and the rotation jig is rotated. When the tool 265 rotates in the A2 direction, the rod portion 261 rotates in the H2 direction (changes from the state of FIG. 42B to the state of FIG. 42A).
　ローラー部２６３ｃは、図３６および図３８に示すように、棒状部２６１に接触しており、ローラー部２６３ｃが回動することにより、棒状部２６１を径方向に移動（スライド移動）させるように構成されている。 As shown in FIGS. 36 and 38, the roller portion 263c is in contact with the rod-shaped portion 261, and the roller portion 263c is rotated to move (slide) the rod-shaped portion 261 in the radial direction. Has been done.
　また、図４３に示すように、規制治具本体２６３は、軸方向に見て、円環状に配置されているとともに、周方向に隣接して配置されている。また、規制治具本体２６３は、ステータコア２０のティース２２毎に設けられている。これにより、移動規制治具２６０が規制状態の場合には、規制部２６２は、周方向に隣り合う規制治具本体２６３に配置された棒状部２６１に近接または接触するように配置された状態となる。 Also, as shown in FIG. 43, the restricting jig main body 263 is arranged in an annular shape as viewed in the axial direction, and is also adjacently arranged in the circumferential direction. The regulation jig body 263 is provided for each tooth 22 of the stator core 20. As a result, when the movement restricting jig 260 is in the restricting state, the restricting portion 262 is arranged so as to be close to or in contact with the rod-shaped parts 261 arranged in the restricting jig main bodies 263 that are circumferentially adjacent to each other. Become.
　回動用治具２６５は、Ｚ２方向に見て、円環状に形成されている。また、回動用治具２６５は、ステータコア２０の軸方向両側のそれぞれに配置されている。そして、回動用治具２６５は、図示しない駆動装置により、中心軸線Ｃ１回りに回動されるように構成されている。そして、回動用治具２６５の回動が、ステータコア２０の軸方向一方側に配置された全ての回動機構部２６３ｂに伝達されることにより、回動機構部２６３ｂが回動軸線Ｃ２回りの回動し、ステータコア２０の軸方向一方側に配置された全ての棒状部２６１が一斉に回動される。 The rotating jig 265 is formed in an annular shape when viewed in the Z2 direction. The rotating jigs 265 are arranged on both axial sides of the stator core 20, respectively. The rotating jig 265 is configured to be rotated around the central axis C1 by a driving device (not shown). Then, the rotation of the rotation jig 265 is transmitted to all the rotation mechanism portions 263b arranged on one axial side of the stator core 20, so that the rotation mechanism portion 263b rotates about the rotation axis C2. All the rod-shaped parts 261 arranged on one axial side of the stator core 20 are rotated in unison.
　また、コイル変形装置５０は、移動規制治具２６０が回動されることにより、移動規制治具２６０が非規制状態から規制状態に切り替えられた状態で、コイルガイド治具５１をステータコア２０に対して、ステータコア２０の周方向に移動させることにより、コイル１０を変形するように構成されている。 Further, in the coil deforming device 50, the movement restricting jig 260 is rotated to move the coil restricting jig 260 to the stator core 20 in a state where the movement restricting jig 260 is switched from the non-restricted state to the restricted state. Then, the coil 10 is deformed by moving the stator core 20 in the circumferential direction.
　そして、コイル変形装置５０は、移動規制治具２６０が回動されることにより、移動規制治具２６０が規制状態から非規制状態に切り替えられた状態で、コイル変形装置５０により変形されたコイル１０の内径側スロット収容部１１ｂを、外径側スロット収容部１１ａが配置されたスロット２１から周方向に離れた位置に位置するスロット２１に挿入するように構成されている。 Then, in the coil deforming device 50, the coil 10 deformed by the coil deforming device 50 in a state where the movement restricting jig 260 is switched from the restricted state to the non-restricted state by the rotation of the movement restricting jig 260. The inner diameter side slot accommodating portion 11b is configured to be inserted into the slot 21 located at a position distant in the circumferential direction from the slot 21 in which the outer diameter side slot accommodating portion 11a is disposed.
　（ステータの製造方法）
　次に、本実施形態によるステータ１００の製造方法（製造工程）について説明する。図４４に、ステータ１００の製造工程に関するフローチャートを示す。また、図４５～図４８に各工程における詳細な製造工程を説明するためのフローチャートを示す。 (Method of manufacturing stator)
Next, the manufacturing method (manufacturing process) of the stator 100 according to the present embodiment will be described. FIG. 44 shows a flowchart relating to the manufacturing process of the stator 100. 45 to 48 are flowcharts for explaining detailed manufacturing steps in each step.
　（コイル形成工程）
　ステップＳ１０において、コイル１０が形成される。具体的には、図４５に示すように、ステップＳ１１、Ｓ１２およびＳ１３が実施される。 (Coil forming process)
In step S10, the coil 10 is formed. Specifically, as shown in FIG. 45, steps S11, S12 and S13 are performed.
　ステップＳ１１において、導線１０ａが巻芯２１１に巻回されることにより、コイル１０が形成される。具体的には、図１０および図１１に示すように、巻芯２１１および２つの側板２１２により形成される巻枠に導線１０ａが複数回巻回される。ここで、巻芯２１１のＦ１方向側に固定部３４を有し、複数の折り曲げ部３１が固定された絶縁シート３０が取り付けられた状態で、導線１０ａが巻芯２１１に巻回される。これにより、絶縁シート３０が取り付けられたコイル１０が形成される。また、巻芯２１１および側板２１２は、巻芯保持治具２１３により保持されている。 In step S11, the coil 10 is formed by winding the conductive wire 10a around the winding core 211. Specifically, as shown in FIGS. 10 and 11, the conductive wire 10 a is wound a plurality of times around the winding frame formed by the winding core 211 and the two side plates 212. Here, the conductive wire 10a is wound around the winding core 211 in a state where the fixing sheet 34 is provided on the F1 direction side of the winding core 211 and the insulating sheet 30 to which the plurality of bent portions 31 are fixed is attached. As a result, the coil 10 to which the insulating sheet 30 is attached is formed. The core 211 and the side plate 212 are held by a core holding jig 213.
　ステップＳ１２において、複数のコイル１０の各々に、コイル１０を保持することによりコイル１０の少なくとも一部の変形を規制するコイル保持治具２２０が取り付けられる。具体的には、図１２に示すように、コイル１０を、ステータコア２０の周方向両側から板部材２２１および２２２により挟み込むように保持することにより、ステータコア２０の周方向におけるコイル１０の変形を規制するコイル保持治具２２０が取り付けられる。 In step S12, a coil holding jig 220 is attached to each of the plurality of coils 10 to hold the coil 10 to restrict deformation of at least a part of the coil 10. Specifically, as shown in FIG. 12, by holding the coil 10 so as to be sandwiched by the plate members 221 and 222 from both sides in the circumferential direction of the stator core 20, deformation of the coil 10 in the circumferential direction of the stator core 20 is restricted. The coil holding jig 220 is attached.
　詳細には、図１５に示すように、接続部材２２３の回動軸部２２３ｂを支点（回転軸）として、板部材２２１および２２２の間を開放させた状態で、コイル１０がコイル保持治具２２０に配置される。この時、図１３に示すように、コイル１０の巻回内側の開口と、コイル保持治具２２０の開口部２２１ｃおよび２２２ｃとが、Ｆ方向にオーバラップするように、コイル１０がコイル保持治具２２０に配置される。 More specifically, as shown in FIG. 15, the coil 10 is held by the coil holding jig 220 in a state where the plate members 221 and 222 are opened with the rotating shaft portion 223b of the connecting member 223 as a fulcrum (rotating shaft). Is located in. At this time, as shown in FIG. 13, the coil 10 has a coil holding jig so that the opening inside the winding of the coil 10 and the openings 221c and 222c of the coil holding jig 220 overlap in the F direction. 220.
　その後、接続部材２２３の回動軸部２２３ｂを支点（回転軸）として、板部材２２１および２２２の間が閉じられることにより、コイル１０が、板部材２２１および２２２により挟まれるように保持される。これにより、板部材２２１の第１部分２２１ａおよび板部材２２２の第１部分２２２ａによって、コイル１０が周方向（Ｆ方向）に広がるように変形するのが規制される。また、板部材２２１の第２部分２２１ｂおよび板部材２２２の第２部分２２２ｂによって、コイル１０が径方向（Ｇ方向）に広がるように変形するのが規制される。 After that, the coil 10 is held so as to be sandwiched by the plate members 221 and 222 by closing the space between the plate members 221 and 222 with the turning shaft portion 223b of the connection member 223 as a fulcrum (rotating shaft). As a result, the first portion 221a of the plate member 221 and the first portion 222a of the plate member 222 restrict the coil 10 from deforming so as to expand in the circumferential direction (F direction). Further, the second portion 221b of the plate member 221 and the second portion 222b of the plate member 222 restrict the coil 10 from deforming so as to expand in the radial direction (G direction).
　また、コイル１０のコイル保持治具２２０への配置は、図１５（ａ）に示すように、開口部２２１ｃおよび２２２ｃを介してコイル１０の巻回内側に設けられた巻芯２１１を保持する巻芯保持治具２１３によりコイル１０が保持された状態で行われる。すなわち、ステップＳ１１においてコイル１０が巻回された時点から、コイル１０にコイル保持治具２２０が取り付けられる時点まで、巻芯保持治具２１３がコイル１０から取り外されない。これにより、コイル１０が巻回された時点から、コイル１０が変形するのを防止することが可能となる。 Further, as shown in FIG. 15A, the coil 10 is arranged on the coil holding jig 220 such that the winding core 211 provided inside the winding of the coil 10 is held through the openings 221c and 222c. It is performed with the coil 10 held by the lead holding jig 213. That is, the core holding jig 213 is not removed from the coil 10 from the time when the coil 10 is wound in step S11 to the time when the coil holding jig 220 is attached to the coil 10. This makes it possible to prevent the coil 10 from being deformed after the coil 10 is wound.
　そして、コイル１０にコイル保持治具２２０が取り付けられた状態で、開口部２２１ｃおよび２２２ｃを介して、Ｅ１方向またはＦ方向に巻芯保持治具２１３が取り外される。また、側板２１２は、板部材２２１および２２２とコイル１０との間からＥ１方向に取り出される。そして、巻芯２１１は、開口部２２１ｃおよび２２２ｃを介して、Ｆ方向に取り外される。 Then, with the coil holding jig 220 attached to the coil 10, the core holding jig 213 is removed in the E1 direction or the F direction through the openings 221c and 222c. Further, the side plate 212 is taken out between the plate members 221 and 222 and the coil 10 in the E1 direction. Then, the winding core 211 is removed in the F direction via the openings 221c and 222c.
　また、図１３に示すように、固定部３４を有する絶縁シート３０がコイル１０とコイル保持治具２２０（板部材２２２）との間に挟み込むように、コイル保持治具２２０がコイル１０に取付けられる。 Further, as shown in FIG. 13, the coil holding jig 220 is attached to the coil 10 so that the insulating sheet 30 having the fixing portion 34 is sandwiched between the coil 10 and the coil holding jig 220 (plate member 222). ..
　ステップＳ１３において、図４９に示すように、絶縁シート３０の固定部３４が切除される。すなわち、コイル保持治具２２０がコイル１０に取り付けられた状態で、固定部切除装置２４０により、固定部３４が切除される。具体的には、まず、図４９（ａ）に示すように、固定部切除装置２４０の受け材２４４が、コイル保持治具２２０が取り付けられたコイル１０のＦ２方向側に配置される。 In step S13, as shown in FIG. 49, the fixing portion 34 of the insulating sheet 30 is cut off. That is, with the coil holding jig 220 attached to the coil 10, the fixing portion cutting device 240 cuts the fixing portion 34. Specifically, first, as shown in FIG. 49A, the receiving member 244 of the fixed portion cutting device 240 is arranged on the F2 direction side of the coil 10 to which the coil holding jig 220 is attached.
　そして、図４９（ｂ）に示すように、刃部２４１と、コイル保護材２４２と、クランプ材２４３と、切り屑排出材２４５とが、コイル保持治具２２０が取り付けられたコイル１０に向かってＦ２方向に、クランプ材２４３が、受け材２４４との間に、固定部３４と第１コイルエンド部絶縁部３２ａ（第２コイルエンド部絶縁部３２ｂ）との境界部分３４ａのＥ１方向側（Ｅ２方向側）の近傍を挟んだ状態で受け材２４４に当接するまで移動される。すなわち、図２１に示すように、コイル保護材２４２がコイル１０の巻回内側で、かつ、コイル保持治具２２０の板部材２２１および２２２の開口部２２１ｃおよび２２２ｃに配置される。なお、図４９（ａ）および図４９（ｂ）では、コイル保護材２４２が、刃部２４１、クランプ材２４３、および、切り屑排出材２４５と、一体的に移動する例を記載しているが、この例に限られず、コイル保護材２４２が、刃部２４１、クランプ材２４３、および、切り屑排出材２４５と別個に移動されてもよい。 Then, as shown in FIG. 49( b ), the blade portion 241, the coil protection material 242, the clamp material 243, and the chip discharging material 245 face the coil 10 to which the coil holding jig 220 is attached. In the F2 direction, the clamp material 243 and the receiving material 244 are located in the E1 direction side (E2) of the boundary portion 34a between the fixed portion 34 and the first coil end insulating portion 32a (second coil end insulating portion 32b). It is moved until it comes into contact with the receiving member 244 while sandwiching the vicinity of the (direction side). That is, as shown in FIG. 21, the coil protective material 242 is arranged inside the coil 10 and in the openings 221c and 222c of the plate members 221 and 222 of the coil holding jig 220. Note that although FIGS. 49A and 49B describe an example in which the coil protection member 242 moves integrally with the blade 241, the clamp member 243, and the chip discharge member 245. However, the present invention is not limited to this example, and the coil protection material 242 may be moved separately from the blade portion 241, the clamp material 243, and the chip discharge material 245.
　そして、図４９（ｃ）に示すように、クランプ材２４３が受け材２４４に第１コイルエンド部絶縁部３２ａ（第２コイルエンド部絶縁部３２ｂ）を介して当接した状態で、クランプ材２４３およびコイル保護材２４２に対して、切り屑排出材２４５と刃部２４１とが一体的にＦ２方向に移動される。そして、刃部２４１が、固定部３４と絶縁シート３０の第１コイルエンド部絶縁部３２ａ（第２コイルエンド部絶縁部３２ｂ）との境界部分３４ａを通過して、境界部分３４ａを切断することにより、固定部３４が絶縁シート３０から切除される。そして、切除された固定部３４は、切り屑排出材２４５により、Ｆ２方向側に押し出されて、コイル１０近傍から切除された固定部３４（切り屑）が排出される。そして、コイル１０に、コイル保持治具２２０が取り付けられた状態で、固定部切除装置２４０からコイル１０が取り外される。 Then, as shown in FIG. 49C, the clamp material 243 is in contact with the receiving material 244 via the first coil end insulating portion 32a (second coil end insulating portion 32b). The chip discharge material 245 and the blade portion 241 are integrally moved in the F2 direction with respect to the coil protection material 242. Then, the blade portion 241 passes through the boundary portion 34a between the fixing portion 34 and the first coil end insulating portion 32a (second coil end insulating portion 32b) of the insulating sheet 30, and cuts the boundary portion 34a. Thus, the fixing portion 34 is cut off from the insulating sheet 30. Then, the cut fixed portion 34 is pushed toward the F2 direction by the chip discharging material 245, and the cut fixed portion 34 (chip) is discharged from the vicinity of the coil 10. Then, with the coil holding jig 220 attached to the coil 10, the coil 10 is removed from the fixed portion cutting device 240.
　〈外径側スロット収容部配置工程〉
　次に、ステップＳ２０において、外径側スロット収容部１１ａがスロット２１（外径側部分２１ｃ）に配置される。具体的には、図４６に示すように、ステップＳ２１～Ｓ２６の工程が実施される。 <Outer diameter side slot accommodating part placement process>
Next, in step S20, the outer diameter side slot accommodating portion 11a is arranged in the slot 21 (outer diameter side portion 21c). Specifically, as shown in FIG. 46, steps S21 to S26 are performed.
　ステップＳ２１において、コイル変形装置５０のコイルガイド治具５１の径方向外側にステータコア２０が配置される。具体的には、図５０に示すように、上側カプラ５３（図２２参照）が、複数のコイルガイド治具５１から取り外された状態で、ステータコア２０がコイルガイド治具５１のＺ１方向側に配置され、ステータコア２０がコイルガイド治具５１に対してＺ２方向に移動されることにより、ステータコア２０とコイルガイド治具５１とが組み合わされる。 In step S21, the stator core 20 is arranged radially outside the coil guide jig 51 of the coil deforming device 50. Specifically, as shown in FIG. 50, with the upper coupler 53 (see FIG. 22) removed from the plurality of coil guide jigs 51, the stator core 20 is arranged on the Z1 direction side of the coil guide jigs 51. Then, the stator core 20 and the coil guide jig 51 are combined by moving the stator core 20 in the Z2 direction with respect to the coil guide jig 51.
　ステップＳ２２において、図２に示すように、スロット絶縁シート４０が各スロット２１に配置される。たとえば、スロット絶縁シート４０がステータコア２０のＺ１方向側に配置され、スロット絶縁シート４０がステータコア２０に対してＺ２方向に移動されることにより、スロット絶縁シート４０がスロット２１に挿入される。詳細には、スロット絶縁シート４０のスロット絶縁部４１がスロット２１内に配置されるとともに、スロット絶縁シート４０の襟状部４２がティース２２の端面２０ａから軸方向外側に突出するように（図４１参照）、スロット絶縁シート４０がスロット２１に配置される。 In step S22, the slot insulating sheet 40 is placed in each slot 21 as shown in FIG. For example, the slot insulating sheet 40 is arranged on the Z1 direction side of the stator core 20, and the slot insulating sheet 40 is moved in the Z2 direction with respect to the stator core 20, so that the slot insulating sheet 40 is inserted into the slot 21. Specifically, the slot insulating portion 41 of the slot insulating sheet 40 is arranged in the slot 21, and the collar-shaped portion 42 of the slot insulating sheet 40 is projected outward from the end surface 20a of the tooth 22 in the axial direction (FIG. 41). ), the slot insulating sheet 40 is arranged in the slot 21.
　ステップＳ２３において、図５０に示すように、移動規制治具２６０がステータコア２０の軸方向の両側に配置される。具体的には、移動規制治具２６０が、ステータコア２０の径方向外側に配置された後、移動規制治具２６０が、径方向内側（図５０のＪ１方向）に移動されることにより、移動規制治具２６０がステータコア２０の軸方向の端面２０ａに配置される。また、移動規制治具２６０は、図４３に示すように、ステータコア２０に設けられている複数のティース２２の端面２０ａの各々に配置される。 In step S23, as shown in FIG. 50, the movement restricting jigs 260 are arranged on both sides of the stator core 20 in the axial direction. Specifically, after the movement restricting jig 260 is arranged on the outside in the radial direction of the stator core 20, the movement restricting jig 260 is moved to the inside in the radial direction (J1 direction in FIG. 50), whereby the movement restricting jig 260 is moved. The jig 260 is arranged on the axial end surface 20 a of the stator core 20. The movement restricting jig 260 is arranged on each of the end surfaces 20a of the teeth 22 provided on the stator core 20, as shown in FIG.
　詳細には、図４１に示すように、移動規制治具２６０が非規制状態で、ステータコア２０の軸方向におけるティース２２の端面２０ａに配置される。すなわち、規制部２６２がステータコア２０の軸方向外側に突出する非規制状態で、移動規制治具２６０がティース２２の端面２０ａに配置される。たとえば、規制部２６２が非規制状態で、ステータコアの径方向外側から径方向内側に向かって、移動規制治具２６０が移動される。そして、移動規制治具２６０は、移動規制治具２６０の棒状部２６１が、スロット絶縁シート４０の襟状部４２と周方向に隣り合うように配置される。 Specifically, as shown in FIG. 41, the movement restricting jig 260 is arranged on the end surface 20a of the tooth 22 in the axial direction of the stator core 20 in a non-regulating state. That is, the movement restricting jig 260 is arranged on the end surface 20 a of the tooth 22 in a non-regulating state in which the restricting portion 262 projects outward in the axial direction of the stator core 20. For example, with the restriction portion 262 in the non-restricted state, the movement restriction jig 260 is moved from the radially outer side of the stator core toward the radially inner side. The movement restricting jig 260 is arranged such that the rod-shaped portion 261 of the movement restricting jig 260 is circumferentially adjacent to the collar-shaped portion 42 of the slot insulating sheet 40.
　ステップＳ２４において、コイル保持治具２２０が取り付けられたコイル１０の外径側スロット収容部１１ａが、スロット２１に配置されるとともに、コイル変形装置５０（コイルガイド治具５１）にコイル保持治具２２０が取り付けられたコイル１０の内径側スロット収容部１１ｂが配置される。具体的には、図５０に示すように、コイル保持治具２２０が取り付けられたコイル１０をステータコア２０に対してＪ２方向（Ｚ２方向）に移動させて、接続部材２２３を先端（Ｚ２方向側）として外径側スロット収容部１１ａが、スロット２１に配置される。 In step S24, the outer diameter side slot accommodating portion 11a of the coil 10 to which the coil holding jig 220 is attached is placed in the slot 21, and the coil deforming device 50 (the coil guide jig 51) is connected to the coil holding jig 220. The inner diameter side slot accommodating portion 11b of the coil 10 to which is attached is arranged. Specifically, as shown in FIG. 50, the coil 10 to which the coil holding jig 220 is attached is moved in the J2 direction (Z2 direction) with respect to the stator core 20, and the connecting member 223 is moved to the tip (Z2 direction side). The outer diameter side slot accommodating portion 11 a is arranged in the slot 21.
　詳細には、治具押圧部材２３１により、コイル保持治具２２０をＺ２方向に押圧することにより、コイル保持治具２２０が取り付けられたコイル１０がスロット２１およびコイル変形装置５０の隙間ＣＬ１に挿入される。具体的には、内径側スロット収容部１１ｂは、スロット２１（内径側部分２１ｂ）における径方向内側に開口する開口部２１ａよりも径方向内側で、かつ、スロット２１（内径側部分２１ｂ）の開口部２１ａと径方向に向かい合う位置に配置される。 In detail, by pressing the coil holding jig 220 in the Z2 direction by the jig pressing member 231, the coil 10 to which the coil holding jig 220 is attached is inserted into the gap CL1 of the slot 21 and the coil deforming device 50. It Specifically, the inner diameter side slot accommodating portion 11b is radially inner than the opening portion 21a of the slot 21 (inner diameter side portion 21b) that opens radially inward, and the opening of the slot 21 (inner diameter side portion 21b). It is arranged at a position facing the portion 21a in the radial direction.
　そして、治具押圧部材２３１と一体的に移動する押圧位置規制部材２３２がステータコア２０の軸方向の端面２０ａに接触して、治具押圧部材２３１のＺ２方向への移動が規制されることにより、外径側スロット収容部１１ａのスロット２１における軸方向位置が規制されるとともに、内径側スロット収容部１１ｂのコイルガイド治具５１における軸方向位置が規制される。 The pressing position restricting member 232 that moves integrally with the jig pressing member 231 contacts the axial end surface 20a of the stator core 20 to restrict the movement of the jig pressing member 231 in the Z2 direction. The axial position of the outer diameter side slot accommodating portion 11a in the slot 21 is regulated, and the axial position of the inner diameter side slot accommodating portion 11b in the coil guide jig 51 is regulated.
　ステップＳ２５において、コイル保持治具２２０がコイル１０から取り外される。具体的には、図５１に示すように、コイル１０の巻回内側をコイル位置固定治具２３３により保持することによって、コイル１０の軸方向位置を固定した状態で、コイル保持治具２２０をＪ３方向（Ｚ２方向）に相対移動させることにより、コイル保持治具２２０がコイル１０から取り外される。詳細には、図５０に示すように、開口部２２１ｃおよび２２２よりもＺ２方向側においてコイル位置固定治具２３３の突出部２３３ｂによりコイル１０を保持した状態から、コイル保持治具２２０をＪ３方向に相対移動させることにより、開口部２２１ｃおよび２２２ｃを突出部２３３ｂがＺ方向に通過させるように、コイル保持治具２２０が取り外される。 In step S25, the coil holding jig 220 is removed from the coil 10. Specifically, as shown in FIG. 51, by holding the inside of the coil 10 by the coil position fixing jig 233, the coil holding jig 220 is moved to J3 with the axial position of the coil 10 fixed. The coil holding jig 220 is removed from the coil 10 by relatively moving in the direction (Z2 direction). Specifically, as shown in FIG. 50, the coil holding jig 220 is moved in the J3 direction from the state in which the coil 10 is held by the projecting portion 233b of the coil position fixing jig 233 on the Z2 direction side of the openings 221c and 222. By relatively moving the coil holding jig 220, the coil holding jig 220 is removed so that the protrusion 233b passes through the openings 221c and 222c in the Z direction.
　ステップＳ２６において、コイル位置固定治具２３３がコイル１０から取り外される。また、治具押圧部材２３１と、押圧位置規制部材２３２とがコイル１０から取り外される。具体的には、コイル位置固定治具２３３がＡ２方向に移動されることにより、突出部２３３ｂがコイル１０の巻回内側から取り外される。そして、治具押圧部材２３１と、押圧位置規制部材２３２と、コイル位置固定治具２３３とが、Ｊ４方向（Ｚ１方向）にコイル１０に対して移動されることにより、治具押圧部材２３１と、押圧位置規制部材２３２と、コイル位置固定治具２３３とが、コイル１０から取り外される。 In step S26, the coil position fixing jig 233 is removed from the coil 10. Further, the jig pressing member 231 and the pressing position restricting member 232 are removed from the coil 10. Specifically, by moving the coil position fixing jig 233 in the A2 direction, the projecting portion 233b is removed from the inside of the winding of the coil 10. Then, the jig pressing member 231, the pressing position restricting member 232, and the coil position fixing jig 233 are moved with respect to the coil 10 in the J4 direction (Z1 direction), whereby the jig pressing member 231 and The pressing position restricting member 232 and the coil position fixing jig 233 are removed from the coil 10.
　〈コイルを変形する工程〉
　次に、ステップＳ３０において、コイル１０を変形する工程が行われる。具体的には、図４７に示すように、ステップＳ３１～Ｓ３３の工程が実施される。 <Process of deforming coil>
Next, in step S30, a step of deforming the coil 10 is performed. Specifically, as shown in FIG. 47, steps S31 to S33 are performed.
　ステップＳ３１において、複数の移動規制治具２６０の各々が、非規制状態（図５２参照）から規制状態（図５３および図５４）に切り替えられる。すなわち、外径側スロット収容部１１ａが径方向内側への移動が規制された状態となる。なお、図５２～図５４では、説明を容易にするため、１つのコイル１０および１つの移動規制治具２６０を図示しているが、各スロット２１にコイル１０が配置され、各ティース２２に移動規制治具２６０が配置されている。 In step S31, each of the plurality of movement restricting jigs 260 is switched from the non-restricted state (see FIG. 52) to the restricted state (FIGS. 53 and 54). That is, the outer diameter side slot accommodating portion 11a is in a state in which the movement inward in the radial direction is restricted. 52 to 54, one coil 10 and one movement restricting jig 260 are illustrated for ease of explanation, but the coil 10 is arranged in each slot 21 and moved to each tooth 22. A restriction jig 260 is arranged.
　具体的には、まず、図５３に示すように、移動規制治具２６０がスロット２１の開口部２１ａよりも径方向内側に移動させた状態で、棒状部２６１が回動されることにより、規制部２６２が軸方向外側（Ｚ１方向）に突出する状態から、規制部２６２がＡ２方向に突出する状態に切り替えられる。 Specifically, first, as shown in FIG. 53, the movement restricting jig 260 is moved inward in the radial direction with respect to the opening 21a of the slot 21, and the rod-shaped portion 261 is rotated to thereby restrict the movement. The state in which the portion 262 projects outward in the axial direction (Z1 direction) is switched to the state in which the restriction portion 262 projects in the A2 direction.
　そして、図５４に示すように、規制部２６２がＡ２方向に突出する状態の移動規制治具２６０の棒状部２６１を径方向外側に移動させることにより、規制部２６２が開口部２１ａに配置される。これにより、スロット２１の径方向内側の一部が塞がれた状態となり、外径側スロット収容部１１ａが径方向内側に移動しようとする場合に、外径側スロット収容部１１ａと規制部２６２とが当接する。 Then, as shown in FIG. 54, the restriction portion 262 is arranged in the opening 21a by moving the rod-shaped portion 261 of the movement restriction jig 260 in a state where the restriction portion 262 projects in the A2 direction to the outside in the radial direction. .. As a result, when the radially inner portion of the slot 21 is partially blocked and the outer diameter side slot accommodating portion 11a tries to move inward in the radial direction, the outer diameter side slot accommodating portion 11a and the restriction portion 262. And abut.
　また、各ティース２２に設けられた複数の移動規制治具２６０は、回動用治具２６５により、一斉に回動されることにより、非規制状態から規制状態に切り替えられる。すなわち、回動用治具２６５がＡ２方向に回動されることに連動し、図４２に示すように、各移動規制治具２６０が回動軸線Ｃ２回りにＨ２方向に回動する。これにより、図４０に示すように、複数の移動規制治具２６０の各々が、移動規制治具２６０が配置されたティース２２の周方向一方側に隣接するスロット２１の開口部２１ａに配置される。すなわち、複数の移動規制治具２６０の各々が、Ａ２方向側に隣接するスロット２１の外径側スロット収容部１１ａの径方向の移動が規制する状態となる。 Further, the plurality of movement restricting jigs 260 provided on each tooth 22 are simultaneously rotated by the rotating jig 265 to switch from the non-restricted state to the restricted state. That is, in association with the rotation jig 265 being rotated in the A2 direction, as shown in FIG. 42, the movement restricting jigs 260 rotate in the H2 direction around the rotation axis C2. As a result, as shown in FIG. 40, each of the plurality of movement restricting jigs 260 is arranged in the opening 21a of the slot 21 adjacent to one side in the circumferential direction of the tooth 22 on which the movement restricting jigs 260 are arranged. .. That is, each of the plurality of movement restricting jigs 260 is in a state of restricting the radial movement of the outer diameter side slot accommodating portion 11a of the slot 21 adjacent to the A2 direction side.
　ステップＳ３２において、上側カプラ５３（図２２参照）が、複数のコイルガイド治具５１の上端部５１ｆ（図２３参照）に取り付けられる。具体的には、上側カプラ５３（フランジ部材５３ｂ）に周状に設けられた複数の凹部５３ａ（図２５参照）に、複数のコイルガイド治具５１の各々の上端部５１ｆが嵌合されるとともに、キャップ部材５３ｃの貫通孔５３ｈ（図２５参照）およびフランジ部材５３ｂの貫通孔５３ｇ（図２５参照）に、シャフト５６が回転駆動力を伝達可能に嵌合される。なお、シャフト５６が貫通孔５３ｈおよび貫通孔５３ｇに嵌合される前に、キャップ部材５３ｃはフランジ部材５３ｂに対してネジ部材等により締結される。 In step S32, the upper coupler 53 (see FIG. 22) is attached to the upper ends 51f (see FIG. 23) of the plurality of coil guide jigs 51. Specifically, each upper end portion 51f of each of the plurality of coil guide jigs 51 is fitted into a plurality of recesses 53a (see FIG. 25) provided circumferentially on the upper coupler 53 (flange member 53b). The shaft 56 is fitted into the through hole 53h (see FIG. 25) of the cap member 53c and the through hole 53g (see FIG. 25) of the flange member 53b so that the rotational driving force can be transmitted. The cap member 53c is fastened to the flange member 53b with a screw member or the like before the shaft 56 is fitted into the through hole 53h and the through hole 53g.
　また、シャフト５６が貫通孔５３ｈおよび貫通孔５３ｇに嵌合する際、シャフト５６の周面５６ａに設けられた凸部５６ｂ（図２７（ａ）参照）が、キャップ部材５３ｃの貫通孔５３ｈの周面５３ｊに設けられた凹部５３ｉ（図２７（ｂ）参照）、および、フランジ部材５３ｂの貫通孔５３ｇの周面５３ｌに設けられた凹部５３ｋ（図２６参照）とが係合された状態で、シャフト５６と、貫通孔５３ｈおよび貫通孔５３ｇとが嵌合される。 Further, when the shaft 56 is fitted into the through hole 53h and the through hole 53g, the convex portion 56b (see FIG. 27A) provided on the peripheral surface 56a of the shaft 56 has the circumference of the through hole 53h of the cap member 53c. With the recess 53i (see FIG. 27B) provided on the surface 53j and the recess 53k (see FIG. 26) provided on the peripheral surface 53l of the through hole 53g of the flange member 53b engaged, The shaft 56 is fitted into the through hole 53h and the through hole 53g.
　次に、ステップＳ３３において、内径側スロット収容部１１ｂが隙間ＣＬ１に配置されるとともに外径側スロット収容部１１ａがスロット２１に配置された状態で、下側回転駆動装置５２（図２３参照）が回転される。これにより、下側回転駆動装置５２に取り付けられた下側カプラ５５（図２３参照）が回転される。そして、下側カプラ５５の貫通孔５５ａの周面５５ｃに設けられた凹部５５ｄ（図２９参照）と、シャフト５６の凸部５６ｂ（図２７（ａ）参照）とが係合しているので、下側カプラ５５が回転することにより、下側回転駆動装置５２の回転駆動力が、下側カプラ５５を介してシャフト５６に伝達される。これにより、下側カプラ５５を介してシャフト５６に伝達された回転駆動力が、シャフト５６を介して上側カプラ５３に伝達される。 Next, in step S33, the lower rotation drive device 52 (see FIG. 23) is operated with the inner diameter side slot housing portion 11b arranged in the gap CL1 and the outer diameter side slot housing portion 11a arranged in the slot 21. Is rotated. As a result, the lower coupler 55 (see FIG. 23) attached to the lower rotation drive device 52 is rotated. Since the concave portion 55d (see FIG. 29) provided on the peripheral surface 55c of the through hole 55a of the lower coupler 55 and the convex portion 56b (see FIG. 27(a)) of the shaft 56 are engaged with each other, As the lower coupler 55 rotates, the rotational driving force of the lower rotation drive device 52 is transmitted to the shaft 56 via the lower coupler 55. As a result, the rotational driving force transmitted to the shaft 56 via the lower coupler 55 is transmitted to the upper coupler 53 via the shaft 56.
　その結果、下側回転駆動装置５２の回転に伴って上側カプラ５３が回転することにより、複数のコイルガイド治具の各々は、中心軸線方向の両端側において回転駆動力を受ける。これにより、複数のコイルガイド治具５１の各々が回転される。そして、コイルガイド治具５１同士の隙間ＣＬ１に配置された内径側スロット収容部１１ｂが周方向に移動（図５５参照）されるとともに、コイル１０が変形される。これにより、外径側スロット収容部１１ａと内径側スロット収容部１１ｂとの距離が変形前よりも大きくなり、絶縁シート３０の折り曲げ部３１が開放される（図８（ｂ）および図８（ｃ）参照）。 As a result, the upper coupler 53 rotates with the rotation of the lower rotation drive device 52, so that each of the plurality of coil guide jigs receives the rotation driving force at both ends in the central axis direction. As a result, each of the plurality of coil guide jigs 51 is rotated. Then, the inner diameter side slot accommodating portion 11b arranged in the gap CL1 between the coil guide jigs 51 is moved in the circumferential direction (see FIG. 55), and the coil 10 is deformed. As a result, the distance between the outer diameter side slot accommodating portion 11a and the inner diameter side slot accommodating portion 11b becomes larger than before the deformation, and the bent portion 31 of the insulating sheet 30 is opened (FIGS. 8B and 8C). )reference).
　〈内径側スロット収容部およびウェッジ部材を配置する工程〉
　次に、ステップＳ４０において、内径側スロット収容部１１ｂおよびウェッジ部材２１ｅを配置する工程が行われる。具体的には、図４８に示すステップＳ４１～Ｓ４６の工程が実施される。 <Process of arranging inner diameter side slot accommodating portion and wedge member>
Next, in step S40, a step of arranging the inner diameter side slot housing portion 11b and the wedge member 21e is performed. Specifically, steps S41 to S46 shown in FIG. 48 are performed.
　まず、ステップＳ４１において、図４１に示すように、棒状部２６１が回動されることにより、規制部２６２が規制状態から非規制状態に切り替えられる。そして、図２３に示すように、移動規制治具２６０をスロット２１（ティース２２）よりも径方向外側に向かって移動させることにより、移動規制治具２６０がティース２２から退避される。すなわち、規制部２６２がＺ１方向に突出する状態で、移動規制治具２６０（棒状部２６１）がＲ２方向に移動される。 First, in step S41, as shown in FIG. 41, by rotating the rod-shaped portion 261, the regulation portion 262 is switched from the regulation state to the non-regulation state. Then, as shown in FIG. 23, the movement restricting jig 260 is retracted from the teeth 22 by moving the movement restricting jig 260 outward in the radial direction with respect to the slot 21 (teeth 22 ). That is, the movement restricting jig 260 (rod-shaped part 261) is moved in the R2 direction with the restricting portion 262 protruding in the Z1 direction.
　そして、ステップＳ４２において、コイルガイド治具５１の上端部５１ｆに取り付けられた上側カプラ５３（図２２参照）が取り外される。この際、下側カプラ５５およびシャフト５６は、取り外されずに残されている。 Then, in step S42, the upper coupler 53 (see FIG. 22) attached to the upper end portion 51f of the coil guide jig 51 is removed. At this time, the lower coupler 55 and the shaft 56 are left without being removed.
　次に、ステップＳ４３において、コイルガイド治具５１の上端部５１ｆ側（Ｚ１方向側）から、挿入部５４ａ（図２３参照）がステータコア２０の内側に挿入される。なお、この際、挿入部５４ａは、挿入部５４ａの挿入孔５４ｃにシャフト５６を挿入させながら、ステータコア２０の内側に挿入される。 Next, in step S43, the insertion portion 54a (see FIG. 23) is inserted into the stator core 20 from the upper end portion 51f side (Z1 direction side) of the coil guide jig 51. At this time, the insertion portion 54a is inserted inside the stator core 20 while inserting the shaft 56 into the insertion hole 54c of the insertion portion 54a.
　挿入部５４ａが挿入されることにより、押圧部５４ｂ（図２３参照）は、挿入部５４ａ（羽部２５４、図２３参照）によって径方向内側から径方向外側に押圧されるとともに径方向外側に移動される。その結果、押圧部５４ｂの径方向外側に配置されている内径側スロット収容部１１ｂが、押圧部５４ｂにより径方向内側から径方向外側に押圧される。これにより、内径側スロット収容部１１ｂは、外径側スロット収容部１１ａが配置されたスロット２１から周方向に離れた位置に位置するスロット２１内（図５５参照）に移動（径方向内側から挿入）される。 When the insertion portion 54a is inserted, the pressing portion 54b (see FIG. 23) is pressed from the radially inner side to the radially outer side by the insertion portion 54a (wing portion 254, see FIG. 23) and moves to the radially outer side. To be done. As a result, the inner diameter side slot accommodating portion 11b arranged on the radially outer side of the pressing portion 54b is pressed by the pressing portion 54b from the radially inner side to the radially outer side. As a result, the inner diameter side slot accommodating portion 11b moves into the slot 21 (see FIG. 55) located at a position circumferentially separated from the slot 21 in which the outer diameter side slot accommodating portion 11a is disposed (inserted from the radial inner side). ) Will be done.
　なお、この際、ウェッジ保持部材５７（図２４等参照）が、押圧部５４ｂと内径側スロット収容部１１ｂとにより挟まれながら、径方向外側のスロット２１側に移動される。すなわち、押圧部５４ｂを径方向外側のスロット２１側に移動させることにより、押圧部５４ｂによる押圧力が、ウェッジ保持部材５７を介して、内径側スロット収容部１１ｂに伝達される。これにより、内径側スロット収容部１１ｂは、スロット２１に対して径方向内側から径方向外側に押し込まれる。 At this time, the wedge holding member 57 (see FIG. 24, etc.) is moved to the radially outer side of the slot 21 while being sandwiched between the pressing portion 54b and the inner diameter side slot accommodating portion 11b. That is, by moving the pressing portion 54b toward the radially outer slot 21 side, the pressing force of the pressing portion 54b is transmitted to the inner diameter side slot accommodating portion 11b via the wedge holding member 57. As a result, the inner diameter side slot accommodating portion 11b is pushed into the slot 21 from the radially inner side to the radially outer side.
　詳細には、内径側スロット収容部１１ｂは、ウェッジ保持部材５７のうち、ウェッジ部材２１ｅが保持されている部分５７ｃ以外の部分５７ｄにより、径方向内側から径方向外側に向かって押圧される。すなわち、この際、ウェッジ部材２１ｅが中心軸線方向においてステータコア２０から上方側（Ｚ１方向側）に突出した状態（図５６参照）で、ウェッジ保持部材５７を介した内径側スロット収容部１１ｂの押圧が行われる。 Specifically, the inner diameter side slot accommodating portion 11b is pressed from the radially inner side to the radially outer side by a portion 57d of the wedge holding member 57 other than the portion 57c at which the wedge member 21e is held. That is, at this time, in a state where the wedge member 21e protrudes upward (Z1 direction side) from the stator core 20 in the central axis direction (see FIG. 56), the inner diameter side slot accommodating portion 11b is pressed by the wedge holding member 57. Done.
　次に、ステップＳ４４において、トグル機構５４ｄおよびスリーブ５４ｍ（図２３参照）が、中心軸線方向（Ｚ２方向側）に（挿入部５４ａおよびウェッジ打ち込み部材５４ｋとは独立して）移動される。そして、トグル５４ｇの一対の第２部分５４ｉがガイド本体部５１ｃに当接することにより、板状部分５４ｆとガイド本体部５１ｃとにより挟まれた一対の第２部分５４ｉ（図３３参照）が径方向に互いに開くように回動される。その結果、一対の第２部分５４ｉのうちの一方により、ステータコア２０からＺ１方向側に突出しているコイルエンド部１２が径方向内側から径方向外側に押圧される。 Next, in step S44, the toggle mechanism 54d and the sleeve 54m (see FIG. 23) are moved in the central axis direction (Z2 direction side) (independently of the insertion portion 54a and the wedge driving member 54k). Then, the pair of second portions 54i of the toggle 54g come into contact with the guide main body portion 51c, so that the pair of second portions 54i (see FIG. 33) sandwiched between the plate-shaped portion 54f and the guide main body portion 51c are radial. Are rotated to open each other. As a result, the coil end portion 12 protruding from the stator core 20 toward the Z1 direction side is pressed from the radially inner side to the radially outer side by one of the pair of second portions 54i.
　次に、ステップＳ４５において、トグル機構５４ｄによりコイルエンド部１２が押圧された状態で、ウェッジ打ち込み部材５４ｋおよびスリーブ５４ｌ（図２３参照）が、中心軸線方向（Ｚ２方向側）に（挿入部５４ａおよびトグル機構５４ｄとは独立して）スライド移動される。そして、ウェッジ打ち込み部材５４ｋにより下端がウェッジ保持部材５７の上端に当接した状態で、ウェッジ打ち込み部材５４ｋが移動されることによって、ウェッジ保持部材５７がウェッジ打ち込み部材５４ｋにより上方側（Ｚ１方向側）から押圧される。その結果、ウェッジ保持部材５７が下方（Ｚ２方向側）に移動（図５７参照）される。 Next, in step S45, while the coil end portion 12 is pressed by the toggle mechanism 54d, the wedge driving member 54k and the sleeve 54l (see FIG. 23) move in the central axis direction (Z2 direction side) (insertion portion 54a and It slides (independently of the toggle mechanism 54d). The wedge driving member 54k is moved in a state where the lower end of the wedge driving member 54k is in contact with the upper end of the wedge holding member 57, whereby the wedge holding member 57 is moved upward by the wedge driving member 54k (Z1 direction side). Is pressed from. As a result, the wedge holding member 57 is moved downward (Z2 direction side) (see FIG. 57).
　この際、ウェッジ保持部材５７は、コイルガイド治具５１同士の隙間ＣＬ１を通って、コイルガイド治具５１にガイドされながら、下方側（Ｚ２方向側）へ移動される。そして、ウェッジ保持部材５７に保持されたウェッジ部材２１ｅは、ウェッジ保持部材５７が移動されることにより、開口部２１ａ（溝部２１ｄ）（図３参照）に対して上方側（Ｚ１方向側）から挿入される。なお、この際、ウェッジ保持部材５７を介して内径側スロット収容部１１ｂが押圧された状態で、ウェッジ保持部材５７の移動が行われる。 At this time, the wedge holding member 57 is moved to the lower side (Z2 direction side) while being guided by the coil guide jig 51 through the gap CL1 between the coil guide jigs 51. The wedge member 21e held by the wedge holding member 57 is inserted from the upper side (Z1 direction side) into the opening 21a (groove 21d) (see FIG. 3) by the movement of the wedge holding member 57. To be done. At this time, the wedge holding member 57 is moved with the inner diameter side slot accommodating portion 11b being pressed via the wedge holding member 57.
　そして、ステップＳ４６において、挿入部５４ａの上方側（Ｚ１方向側）への抜き出し（図５８参照）が行われる。挿入部５４ａが上方側（Ｚ１方向側）に抜き出されることにより、ウェッジ保持部材５７を介した押圧部５４ｂによる内径側スロット収容部１１ｂへの押圧が解除される。これにより、ウェッジ保持部材５７が下方側から抜き出される。その後、各治具がステータ１００から取り外され、ステータ１００が完成される。そして、ステータ１００の径方向内側にロータ１０１が配置され、回転電機１０２が製造される。 Then, in step S46, the insertion portion 54a is extracted to the upper side (Z1 direction side) (see FIG. 58). By pulling out the insertion portion 54a to the upper side (Z1 direction side), the pressing of the pressing portion 54b via the wedge holding member 57 to the inner diameter side slot accommodating portion 11b is released. As a result, the wedge holding member 57 is pulled out from the lower side. After that, each jig is removed from the stator 100, and the stator 100 is completed. Then, the rotor 101 is arranged inside the stator 100 in the radial direction, and the rotary electric machine 102 is manufactured.
　［上記実施形態の製造方法の効果］
　上記実施形態の製造方法では、以下のような効果を得ることができる。 [Effects of the manufacturing method of the above embodiment]
The manufacturing method of the above embodiment can obtain the following effects.
　上記実施形態では、複数のコイル（１０）の各々に、コイル（１０）を保持することによりコイル（１０）の少なくとも一部の変形を規制するコイル保持治具（２２０）を取り付ける工程（Ｓ１２）と、コイル保持治具（２２０）が取り付けられた一方のスロット収容部（１１ａ）を、第１スロット（２１、２１ｃ）に配置する工程（Ｓ２０）とを備える。これにより、コイル（１０）のスロット（２１）に対する占積率を向上させた場合でも、コイル保持治具（２２０）によりコイル（１０）の少なくとも一部の変形を規制するので、コイル（１０）の外形寸法が大きくなるのを防止することができる。そして、コイル（１０）の外形寸法が大きくなるのを防止しながら、一方のスロット収容部（１１ａ）を第１スロット（２１、２１ｃ）に配置することができるので、一方のスロット収容部（１１ａ）をスロット（２１、２１ｃ）に配置する際に、コイル（１０）とステータコア（２０）とが機械的に干渉するのを防止することができる。 In the above-described embodiment, a step of attaching a coil holding jig (220) to each of the plurality of coils (10), which holds the coil (10) to restrict deformation of at least a part of the coil (10) (S12). And a step (S20) of arranging the one slot housing portion (11a) to which the coil holding jig (220) is attached in the first slot (21, 21c). As a result, even when the space factor of the coil (10) with respect to the slot (21) is improved, the coil holding jig (220) restricts the deformation of at least a part of the coil (10). It is possible to prevent the external dimensions of the device from increasing. Then, since it is possible to dispose the one slot accommodating portion (11a) in the first slot (21, 21c) while preventing the external dimensions of the coil (10) from increasing, the one slot accommodating portion (11a) is disposed. It is possible to prevent the coil (10) and the stator core (20) from mechanically interfering with each other when arranging (1) in the slot (21, 21c).
　また、上記実施形態では、コイル保持治具（２２０）は、２つの板部材（２２１、２２２）を含み、コイル保持治具（２２０）を取り付ける工程（Ｓ１２）は、コイル（１０）を、ステータコア（２０）の周方向両側から２つの板部材（２２１、２２２）により挟み込むように保持することにより、ステータコア（２０）の周方向におけるコイル（１０）の変形を規制するコイル保持治具（２２０）を取り付ける工程（Ｓ１２）である。このように構成すれば、周方向におけるコイル（１０）の変形を規制することができるので、コイル（１０）をスロット（２１）に挿入する際に、スロット（２１）に周方向に隣接するティース（２２）にコイル（１０）が機械的に干渉するのを防止することができる。 Further, in the above-described embodiment, the coil holding jig (220) includes two plate members (221, 222), and in the step (S12) of attaching the coil holding jig (220), the coil (10) is attached to the stator core. A coil holding jig (220) that restricts the deformation of the coil (10) in the circumferential direction of the stator core (20) by holding the two plate members (221, 222) from both sides in the circumferential direction of the (20). Is a step of attaching (S12). According to this structure, the deformation of the coil (10) in the circumferential direction can be restricted. Therefore, when the coil (10) is inserted into the slot (21), the teeth adjacent to the slot (21) in the circumferential direction. It is possible to prevent the coil (10) from mechanically interfering with (22).
　また、上記実施形態では、コイル保持治具（２２０）は、２つの板部材（２２１、２２２）を２つの板部材（２２１、２２２）の各々の軸方向一方側の端部（２２１ｄ、２２２ｄ）近傍において接続する接続部（２２３）を含み、一方のスロット収容部（１１ａ）を配置する工程（Ｓ２０）は、コイル（１０）をステータコア（２０）に対してステータコア（２０）の軸方向一方側に移動させて、接続部（２２３）を先端として一方のスロット収容部（１１ａ）を第１スロット（２１、２１ｃ）に挿入する工程（Ｓ２４）である。このように構成すれば、２つの板部材（２２１、２２２）が互いに接続されずに、２つの板部材（２２１、２２２）によりコイル（１０）を保持する場合に比べて、２つの板部材（２２１、２２２）同士の相対位置を容易に規制することができる。そして、接続部（２２３）を先端として一方のスロット収容部（１１ａ）を第１スロット（２１、２１ｃ）に挿入することにより、寸法が一定の接続部（２２３）をスロット収容部（１１）に先立ってスロット（２１）に進入させることができる。この結果、コイル保持治具（２２０）（２つの板部材（２２１、２２２））とステータコア（２０）とが機械的に干渉するのを防止することができる。 Further, in the above-described embodiment, the coil holding jig (220) has two plate members (221, 222) which are axially one end (221d, 222d) of each of the two plate members (221, 222). In the step (S20) of arranging the one slot accommodating portion (11a) including the connecting portion (223) that is connected in the vicinity, the coil (10) is located on one side of the stator core (20) in the axial direction of the stator core (20). Is a step (S24) of moving the first slot (21, 21c) to the first slot (21, 21c) by moving the connection portion (223) to the tip. According to this structure, the two plate members (221, 222) are not connected to each other and the two plate members (221, 222) hold the coil (10) as compared with the case where the two plate members (221, 222) hold the coil (10). It is possible to easily regulate the relative position between the two (221, 222). Then, by inserting the slot accommodation portion (11a) into the first slot (21, 21c) with the connection portion (223) as a tip, the connection portion (223) having a constant size is accommodated in the slot accommodation portion (11). The slot (21) can be entered in advance. As a result, mechanical interference between the coil holding jig (220) (two plate members (221, 222)) and the stator core (20) can be prevented.
　また、上記実施形態では、コイル保持治具（２２０）を取り付ける工程（Ｓ１２）は、接続部（２２３）を支点（２２３ｂ）として、２つの板部材（２２１、２２２）の間を開放させた状態で、コイル（１０）をコイル保持治具（２２０）に配置するとともに、２つの板部材（２２１、２２２）の間を閉じた状態で、コイル（１０）を２つの板部材（２２１、２２２）により挟み込むように保持する工程（Ｓ１２）である。このように構成すれば、２つの板部材（２２１、２２２）の間を開放させた状態にすることにより、２つの板部材（２２１、２２２）同士の隙間が大きくなる分、容易に、コイル（１０）を２つの板部材（２２１、２２２）の間に配置することができる。また、接続部（２２３）を支点（２２３ｂ）として、２つの板部材（２２１、２２２）の間を開放させた状態から閉じた状態に変更することにより、容易に、コイル（１０）を２つの板部材（２２１、２２２）により挟み込んだ状態にすることができる。 Further, in the above-described embodiment, in the step (S12) of attaching the coil holding jig (220), a state in which the space between the two plate members (221, 222) is opened with the connecting portion (223) as the fulcrum (223b). Then, the coil (10) is placed on the coil holding jig (220), and the coil (10) is placed in the two plate members (221, 222) with the space between the two plate members (221, 222) being closed. It is a step (S12) of holding so as to be sandwiched by. According to this structure, the gap between the two plate members (221, 222) is increased by opening the two plate members (221, 222), so that the coil ( 10) can be arranged between two plate members (221, 222). In addition, by using the connecting portion (223) as the fulcrum (223b) and changing the state between the two plate members (221, 222) from the open state to the closed state, the coil (10) can be easily connected to the two coils (10). It can be sandwiched by the plate members (221, 222).
　また、上記実施形態では、コイル保持治具（２２０）には、ステータコア（２０）の軸方向他方側に開口する開口部（２２１ｃ、２２２ｃ）が設けられており、コイル（１０）は、導線（１０ａ）が巻回されて形成されており、コイル保持治具（２２０）を取り付ける工程（Ｓ１２）は、開口部（２２１ｃ、２２２ｃ）を介してコイル（１０）の巻回内側に設けられた巻芯（２１１）を保持する巻芯保持治具（２１３）によりコイル（１０）を保持した状態で、コイル保持治具（２２０）を取り付ける工程（Ｓ１２）である。このように構成すれば、巻芯（２１１）にコイル（１０）を形成した後、巻芯保持治具（２１３）をコイル（１０）から取り外すことなく、コイル（１０）にコイル保持治具（２２０）を取り付けることができる。これにより、巻芯（２１１）にコイル（１０）を形成した後、一旦、巻芯保持治具（２１３）をコイル（１０）から取り外して、コイル（１０）を保持しない状態となる期間が生じる場合と異なり、より効果的にコイル（１０）の変形を規制することができる。 Further, in the above-described embodiment, the coil holding jig (220) is provided with the opening portions (221c, 222c) that open to the other axial side of the stator core (20), and the coil (10) includes the conductive wire ( 10a) is formed by winding, and in the step of attaching the coil holding jig (220) (S12), the winding provided inside the winding of the coil (10) through the openings (221c, 222c). It is a step (S12) of attaching the coil holding jig (220) while holding the coil (10) by the winding core holding jig (213) holding the core (211). According to this structure, after the coil (10) is formed on the winding core (211), the coil holding jig (213) is not removed from the coil (10) after the coil (10) is formed on the coil (10). 220) can be attached. Accordingly, after the coil (10) is formed on the winding core (211), the winding core holding jig (213) is once removed from the coil (10), and there is a period in which the coil (10) is not held. Unlike the case, the deformation of the coil (10) can be regulated more effectively.
　また、上記実施形態では、コイル保持治具（２２０）を取り付ける工程（Ｓ１２）は、絶縁部材（３０）をコイル（１０）とコイル保持治具（２２０）との間に挟み込むように、コイル保持治具（２２０）をコイル（１０）に取り付ける工程（Ｓ１２）である。このように構成すれば、絶縁部材（３０）をコイル保持治具（２２０）の外側（ティース（２２）とコイル保持治具（２２０）との間）に配置する場合と異なり、コイル（１０）をスロット（２１）に配置する際に、絶縁部材（３０）とティース（２２）とが機械的に干渉するのを防止することができる。 Further, in the above embodiment, in the step (S12) of attaching the coil holding jig (220), the coil holding is performed so that the insulating member (30) is sandwiched between the coil (10) and the coil holding jig (220). It is a step (S12) of attaching the jig (220) to the coil (10). According to this structure, unlike the case where the insulating member (30) is arranged outside the coil holding jig (220) (between the teeth (22) and the coil holding jig (220)), the coil (10) is arranged. It is possible to prevent the insulating member (30) and the teeth (22) from mechanically interfering with each other when arranging them in the slot (21).
　また、上記実施形態では、一方のスロット収容部（１１ａ）を配置する工程（Ｓ２０）は、治具押圧部材（２３１）により、コイル保持治具（２２０）をステータコア（２０）の軸方向一方側に押圧することにより、コイル保持治具（２２０）が取り付けられたコイル（１０）の一方のスロット収容部（１１ａ）を、第１スロット（２１、２１ｃ）に挿入する工程（Ｓ２４）である。このように構成すれば、治具押圧部材（２３１）を用いることにより、コイル保持治具（２２０）が取り付けられたコイル（１０）の一方のスロット収容部（１１ａ）を、容易にスロット（２１）に挿入することができる。 Further, in the above-described embodiment, in the step (S20) of arranging one of the slot accommodating portions (11a), the coil pressing jig (220) is moved to one side in the axial direction of the stator core (20) by the jig pressing member (231). This is a step (S24) of inserting the one slot accommodating portion (11a) of the coil (10) to which the coil holding jig (220) is attached into the first slot (21, 21c) by pressing the coil holding jig (220). According to this structure, by using the jig pressing member (231), the slot holding portion (11a) of one side of the coil (10) to which the coil holding jig (220) is attached can be easily inserted into the slot (21). ) Can be inserted.
　また、上記実施形態では、一方のスロット収容部（１１ａ）を配置する工程（Ｓ２０）は、治具押圧部材（２３１）により、コイル保持治具（２２０）をステータコア（２０）の軸方向一方側に押圧することにより、一方のスロット収容部（１１ａ）を第１スロット（２１、２１ｃ）に挿入するとともに、治具押圧部材（２３１）と一体的に移動する押圧位置規制部材（２３２）がステータコア（２０）の軸方向端面（２０ａ）に接触して、治具押圧部材（２３１）の軸方向一方側への移動が規制されることにより、一方のスロット収容部（１１ａ）の第１スロット（２１、２１ｃ）における軸方向位置を規制する工程（Ｓ２４）である。このように構成すれば、押圧位置規制部材（２３２）を用いることにより、一方のスロット収容部（１１ａ）の第１スロット（２１、２１ｃ）における軸方向位置を規制することができるので、一方のスロット収容部（１１ａ）を、第１スロット（２１、２１ｃ）において適切な軸方向位置に配置させることができる。 Further, in the above-described embodiment, in the step (S20) of arranging one of the slot accommodating portions (11a), the coil pressing jig (220) is moved to one side in the axial direction of the stator core (20) by the jig pressing member (231). The slot core (11a) on one side is inserted into the first slot (21, 21c) by being pressed against and the pressing position regulating member (232) that moves integrally with the jig pressing member (231) is provided on the stator core. By contacting the axial end surface (20a) of (20) and restricting the movement of the jig pressing member (231) to one side in the axial direction, the first slot ( 21, 21c) is a step (S24) of regulating the axial position. According to this structure, the axial position of the first slot (21, 21c) of the one slot accommodating portion (11a) can be regulated by using the pressing position regulating member (232). The slot accommodating portion (11a) can be arranged at an appropriate axial position in the first slot (21, 21c).
　また、上記実施形態では、コイル（１０）は、導線（１０ａ）が巻回されて形成されており、コイル保持治具（２２０）を取り外す工程（Ｓ２５）は、コイル（１０）の巻回内側をコイル位置固定治具（２３３）により保持することによって、コイル（１０）の軸方向位置を固定した状態で、コイル保持治具（２２０）をステータコア（２０）に対して軸方向一方側に相対移動させることにより、コイル保持治具（２２０）を取り外す工程（Ｓ２５）である。このように構成すれば、コイル保持治具（２２０）を取り外す際に、コイル保持治具（２２０）がコイル（１０）と共にステータコア（２０）から脱離してしまうのを防止することができる。 Further, in the above embodiment, the coil (10) is formed by winding the conductive wire (10a), and the step (S25) of removing the coil holding jig (220) is performed inside the coil (10). Is held by the coil position fixing jig (233), so that the coil holding jig (220) is positioned relative to the stator core (20) on one side in the axial direction with the axial position of the coil (10) fixed. This is a step (S25) of removing the coil holding jig (220) by moving it. According to this structure, when the coil holding jig (220) is removed, it is possible to prevent the coil holding jig (220) from being detached from the stator core (20) together with the coil (10).
　また、上記実施形態では、コイル保持治具（２２０）は、ステータコア（２０）の軸方向他方側に開口する開口部（２２１ｃ、２２２ｃ）が設けられており、コイル保持治具（２２０）を取り外す工程（Ｓ２５）は、開口部（２２１ｃ、２２２ｃ）よりもステータコア（２０）の軸方向一方側においてコイル位置固定治具（２３３）によりコイル（１０）を保持した状態から、コイル保持治具（２２０）をステータコア（２０）に対して軸方向一方側に相対移動させることにより、開口部（２２１ｃ、２２２ｃ）をコイル位置固定治具（２３３）が軸方向に通過させるように、コイル保持治具（２２０）を取り外す工程（Ｓ２５）である。このように構成すれば、開口部（２２１ｃ、２２２ｃ）がコイル保持治具（２２０）に設けられていることにより、コイル位置固定治具（２３３）と、ステータコア（２０）に対して軸方向一方側に相対移動させるコイル保持治具（２２０）とが機械的に干渉することなく、コイル位置固定治具（２３３）がコイル（１０）を保持した状態で、コイル保持治具（２２０）を取り外すことができる。 Further, in the above embodiment, the coil holding jig (220) is provided with the openings (221c, 222c) that open to the other axial side of the stator core (20), and the coil holding jig (220) is removed. In the step (S25), the coil holding jig (220) is held from the state where the coil (10) is held by the coil position fixing jig (233) on one axial side of the stator core (20) with respect to the openings (221c, 222c). ) Is relatively moved to one side in the axial direction with respect to the stator core (20), so that the coil position fixing jig (233) passes through the openings (221c, 222c) in the axial direction. 220) is a step of removing (S25). According to this structure, since the openings (221c, 222c) are provided in the coil holding jig (220), one side of the coil position fixing jig (233) and the stator core (20) in the axial direction is formed. Remove the coil holding jig (220) with the coil position fixing jig (233) holding the coil (10) without mechanically interfering with the coil holding jig (220) that is moved to the side. be able to.
　また、上記実施形態では、一方のスロット収容部（１１ａ）を配置する工程（Ｓ２０）は、コイル保持治具（２２０）が取り付けられたコイル（１０）の一方のスロット収容部（１１ａ）を、スロット（２１）に配置するとともに、他方のスロット収容部（１１ｂ）を、コイル変形用治具（５１）に配置する工程（Ｓ２４）であり、コイル保持治具（２２０）を取り外す工程（Ｓ２５）の後で、かつ、他方のスロット収容部（１１ｂ）を挿入する工程（Ｓ４３）の前に、他方のスロット収容部（１１ｂ）を、コイル変形用治具（５１）により、一方のスロット収容部（１１ａ）に対してステータコア（２０）の周方向に移動させることにより、コイル（１０）を変形する工程（Ｓ３０）をさらに備える。このように構成すれば、他方のスロット収容部（１１ｂ）を、コイル変形用治具（５１）に配置する際にも、コイル保持治具（２２０）により、他方のスロット収容部（１１ｂ）とコイル変形用治具（５１）とが機械的に干渉するのを防止することができる。 Moreover, in the said embodiment, the process (S20) of arranging one slot accommodation part (11a) WHEREIN: One slot accommodation part (11a) of the coil (10) to which the coil holding jig (220) was attached, It is a step (S24) of arranging in the slot (21) and the other slot housing portion (11b) in the coil deforming jig (51), and a step of removing the coil holding jig (220) (S25). And before the step (S43) of inserting the other slot accommodating portion (11b), the other slot accommodating portion (11b) is removed by the coil deformation jig (51). The method further includes a step (S30) of deforming the coil (10) by moving the stator core (20) in the circumferential direction with respect to (11a). According to this structure, even when the other slot accommodation portion (11b) is arranged on the coil deforming jig (51), the coil holding jig (220) causes the other slot accommodation portion (11b) to move. It is possible to prevent mechanical interference with the coil deformation jig (51).
　［上記実施形態の製造装置の効果］
　上記実施形態の製造装置では、以下のような効果を得ることができる。 [Effects of the manufacturing apparatus of the above embodiment]
The manufacturing apparatus of the above embodiment can obtain the following effects.
　上記実施形態の製造装置のように構成することにより、スロット収容部（１１）をスロット（２１）に配置する際に、コイル（１０）とステータコア（２０）とが機械的に干渉するのを防止することが可能なステータ（１００）の製造装置（２００）を提供することができる。 By configuring like the manufacturing apparatus of the above embodiment, it is possible to prevent mechanical interference between the coil (10) and the stator core (20) when the slot housing (11) is arranged in the slot (21). The manufacturing apparatus (200) of the stator (100) which can be performed can be provided.
　また、上記実施形態では、コイル保持治具（２２０）は、コイル（１０）を、ステータコア（２０）の周方向両側から挟み込むように保持する２つの板部材（２２１、２２２）を含む。このように構成すれば、２つの板部材（２２１、２２２）により周方向におけるコイル（１０）の変形を規制することができるので、コイル（１０）をスロット（２１）に挿入する際に、スロット（２１）に周方向に隣接するティース（２２）にコイル（１０）が機械的に干渉するのを防止することができる。 Further, in the above embodiment, the coil holding jig (220) includes two plate members (221, 222) that hold the coil (10) so as to sandwich the coil from both sides in the circumferential direction of the stator core (20). According to this structure, the deformation of the coil (10) in the circumferential direction can be regulated by the two plate members (221, 222). Therefore, when the coil (10) is inserted into the slot (21), It is possible to prevent the coil (10) from mechanically interfering with the teeth (22) circumferentially adjacent to the (21).
　また、上記実施形態では、コイル保持治具（２２０）は、２つの板部材（２２１、２２２）を２つの板部材（２２１、２２２）の各々の端部（２２１ｃ、２２２ｃ）近傍において接続する接続部（２２３）を含む。このように構成すれば、２つの板部材（２２１、２２２）が互いに接続されずに、２つの板部材（２２１、２２２）によりコイル（１０）を保持する場合に比べて、２つの板部材（２２１、２２２）同士の相対位置を容易に規制することができる。 Further, in the above embodiment, the coil holding jig (220) is a connection for connecting the two plate members (221, 222) in the vicinity of the respective end portions (221c, 222c) of the two plate members (221, 222). The part (223) is included. According to this structure, the two plate members (221, 222) are not connected to each other and the two plate members (221, 222) hold the coil (10) as compared with the case where the two plate members (221, 222) hold the coil (10). It is possible to easily regulate the relative position between the two (221, 222).
　また、上記実施形態では、２つの板部材（２２１、２２２）の少なくとも一方は、ステータコア（２０）の軸方向に開口する開口部（２２１ｃ、２２２ｃ）が設けられていることにより、ステータコア（２０）の周方向から見て、Ｕ字状を有するように形成されている。このように構成すれば、コイル保持治具（２２０）をコイル（１０）に取り付けた状態で、開口部（２２１ｃ、２２２ｃ）を介して、他の治具（巻芯保持治具（２１３）やコイル位置固定治具（２３３）など）をコイル（１０）に対して着脱することができる。このため、他の治具を着脱する際に、コイル保持治具（２２０）をコイル（１０）から取り外す必要がない分、より効果的にコイル（１０）の変形を規制することができる。 Further, in the above-described embodiment, at least one of the two plate members (221, 222) is provided with the opening (221c, 222c) that opens in the axial direction of the stator core (20), and thus the stator core (20). It is formed to have a U-shape when viewed from the circumferential direction. According to this structure, in a state where the coil holding jig (220) is attached to the coil (10), another jig (core holding jig (213) or other jig is inserted through the openings (221c, 222c). A coil position fixing jig (233) or the like can be attached to or detached from the coil (10). Therefore, since it is not necessary to remove the coil holding jig (220) from the coil (10) when attaching or detaching another jig, the deformation of the coil (10) can be more effectively regulated.
　［変形例］
　なお、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、上記した実施形態の説明ではなく請求の範囲によって示され、さらに請求の範囲と均等の意味および範囲内でのすべての変更（変形例）が含まれる。 [Modification]
It should be considered that the embodiments disclosed this time are exemplifications in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of the claims, and further includes meanings equivalent to the scope of the claims and all modifications (modifications) within the scope.
　たとえば、上記実施形態では、スロットの開口部を径方向内側に設けて、ステータをインナーロータ型の回転電機の一部を構成するように形成する例を示したが、本発明はこれに限られない。たとえば、スロットの開口部を径方向外側に設けて、ステータをアウターロータ型の回転電機の一部を構成するように形成してもよい。 For example, in the above-described embodiment, an example is shown in which the opening of the slot is provided on the inner side in the radial direction and the stator is formed so as to form a part of the inner rotor type rotating electric machine, but the present invention is not limited to this. Absent. For example, the openings of the slots may be provided on the outer side in the radial direction, and the stator may be formed so as to form a part of the outer rotor type rotating electrical machine.
　また、上記実施形態では、コイル保持治具が取り付けられたコイルを、軸方向に移動させてスロットに配置する例を示したが、本発明はこれに限られない。たとえば、径方向内側からスロットの開口部を介して、コイル保持治具が取り付けられたコイルをスロットに配置してもよい。 Further, in the above embodiment, an example in which the coil to which the coil holding jig is attached is moved in the axial direction and arranged in the slot has been shown, but the present invention is not limited to this. For example, the coil to which the coil holding jig is attached may be arranged in the slot from the radially inner side through the opening of the slot.
　また、上記実施形態では、コイル保持治具が取り付けられたコイルを、同一の工程で、スロットおよびコイルガイド治具に挿入する例を示したが、本発明はこれに限られない。たとえば、コイル保持治具が取り付けられたコイルをコイルガイド治具に挿入した後、コイルを、スロットに配置してもよいし、コイルをスロットに挿入した後、コイルを、コイルガイド治具に配置してもよい。 Further, in the above embodiment, an example in which the coil to which the coil holding jig is attached is inserted into the slot and the coil guide jig in the same step has been shown, but the present invention is not limited to this. For example, after inserting the coil with the coil holding jig into the coil guide jig, the coil may be placed in the slot, or after inserting the coil into the slot, the coil may be placed in the coil guide jig. You may.
　また、上記実施形態では、コイル保持治具に２つの板部材を設ける例を示したが、本発明はこれに限られない。たとえば、コイル保持治具を単一の部材（たとえば、コイルを保持する箱状の部材）として構成してもよいし、３つ以上の板部材からコイル保持治具を構成してもよい。 Further, in the above embodiment, an example in which the coil holding jig is provided with two plate members is shown, but the present invention is not limited to this. For example, the coil holding jig may be configured as a single member (for example, a box-shaped member that holds the coil), or the coil holding jig may be configured by three or more plate members.
　また、上記実施形態では、２つの板部材のそれぞれに、第１部分および第２部分を設ける例を示したが、本発明はこれに限られない。たとえば、２つの板部材のうちの一方、または、両方を、第１部分のみから構成してもよい。 Also, in the above embodiment, an example in which the first portion and the second portion are provided on each of the two plate members has been shown, but the present invention is not limited to this. For example, one or both of the two plate members may be composed of only the first portion.
　また、上記実施形態では、接続部材を蝶番状に構成する例を示したが、本発明はこれに限られない。たとえば、接続部材を２つの板部材を締結する締結部材として構成してもよいし、接続部材を２つの板部材を接合するための接合部材として構成されていてもよい。 Also, in the above embodiment, an example in which the connecting member is configured in a hinge shape has been shown, but the present invention is not limited to this. For example, the connecting member may be configured as a fastening member that fastens the two plate members, or the connecting member may be configured as a joining member for joining the two plate members.
　また、上記実施形態では、絶縁シートをコイルとコイル保持治具との間に挟み込むように、コイル保持治具をコイルに取り付ける例を示したが、本発明はこれに限られない。たとえば、コイルをスロットに配置した後に、絶縁シートのコイルへの配置が可能であれば、絶縁シートをコイルとコイル保持治具との間に挟み込まずに、コイル保持治具をコイルに取り付けてもよい。 Further, in the above embodiment, an example was shown in which the coil holding jig is attached to the coil so that the insulating sheet is sandwiched between the coil and the coil holding jig, but the present invention is not limited to this. For example, if the insulating sheet can be placed on the coil after the coil is placed in the slot, the coil holding jig can be attached to the coil without sandwiching the insulating sheet between the coil and the coil holding jig. Good.
　また、上記実施形態では、２つの板部材の両方をステータコアの周方向から見て、Ｕ字状を有するように形成する例を示したが、本発明はこれに限られない。たとえば、２つの板部材のうちの一方のみをステータコアの周方向から見て、Ｕ字状を有するように形成してもよい。 Further, in the above embodiment, an example in which both of the two plate members are formed so as to have a U shape when viewed from the circumferential direction of the stator core has been shown, but the present invention is not limited to this. For example, only one of the two plate members may be formed to have a U shape when viewed from the circumferential direction of the stator core.
　また、上記実施形態では、コイル変形工程において、コイルガイド治具をステータコアに対して周方向に移動させる例を示したが、本発明はこれに限られない。たとえば、ステータコアをコイルガイド治具に対して周方向に移動させてもよいし、コイルガイド治具およびステータコアの両方を相対的に周方向に移動させてもよい。 Further, in the above embodiment, an example in which the coil guide jig is moved in the circumferential direction with respect to the stator core in the coil deforming step has been shown, but the present invention is not limited to this. For example, the stator core may be moved in the circumferential direction with respect to the coil guide jig, or both the coil guide jig and the stator core may be moved in the circumferential direction relatively.
１０　コイル　　　　　　　　　　　１１　スロット収容部
１１ａ　外径側スロット収容部（一方のスロット収容部）
１１ｂ　内径側スロット収容部（他方のスロット収容部）
２０　ステータコア　　　　　　　　２０ａ　端面（ステータコアの軸方向端面）
２１　スロット（第１スロット、第２スロット）
２１ａ　開口部（スロットの開口部）　２１ｂ　内径側部分（第２スロット）
２１ｃ　外径側部分（第１スロット）
２２　ティース　　　　　　　　　　３０　絶縁シート（絶縁部材）
５０　コイル変形装置（第２コイル配置部、コイル変形用治具）
５１　コイルガイド治具（コイル変形用治具）
５４　コイル押圧装置（第２コイル配置部）
１００　ステータ　　　　　　　　　２００　製造装置（ステータの製造装置）
２１１　巻芯　　　　　　　　　　　２１３　巻芯保持治具
２２０　コイル保持治具　　　　　　２２１、２２２　板部材
２２１ｃ、２２２ｃ　開口部（板部材の開口部）
２２１ｄ、２２２ｄ　端部（板部材の端部）
２２３　接続部材（接続部）　　　　２２３ｂ　回動軸部（支点）
２３０　第１コイル配置部　　　　　２３１　治具押圧部材
２３２　押圧位置規制部材　　　　　２３３　コイル位置固定治具 10 coil 11 slot accommodating portion 11a outer diameter side slot accommodating portion (one slot accommodating portion)
11b Inner diameter side slot accommodating portion (other slot accommodating portion)
20 Stator core 20a End surface (axial stator end surface)
21 slots (first slot, second slot)
21a Opening portion (slot opening portion) 21b Inner diameter side portion (second slot)
21c Outer diameter side portion (first slot)
22 Teeth 30 Insulation sheet (insulation member)
50 Coil deforming device (second coil disposing portion, coil deforming jig)
51 Coil guide jig (coil deformation jig)
54 Coil pressing device (second coil arrangement part)
100 Stator 200 Manufacturing device (stator manufacturing device)
211 core 213 core holding jig 220 coil holding jigs 221 and 222 plate members 221c and 222c opening (opening of plate member)
221d, 222d end (end of plate member)
223 Connection member (connection part) 223b Rotating shaft part (fulcrum)
230 first coil arrangement part 231 jig pressing member 232 pressing position regulating member 233 coil position fixing jig

Claims (15)

  1. 　複数のティースと、周方向に隣り合う夫々の前記ティースの間に形成される複数のスロットとを備えるステータコアと、互いに異なる前記スロットに収容される一対のスロット収容部を含むコイルとを備えるステータの製造方法であって、
    　複数の前記コイルの各々に、前記コイルを保持することにより前記コイルの少なくとも一部の変形を規制するコイル保持治具を取り付ける工程と、
    　前記コイル保持治具を取り付ける工程の後、前記コイル保持治具が取り付けられた前記コイルの前記一対のスロット収容部のうちの一方のスロット収容部を、前記複数のスロットのうちの１つである第１スロットに配置する工程と、
    　前記一方のスロット収容部を配置する工程の後、前記コイル保持治具を前記コイルから取り外す工程と、
    　前記コイル保持治具を取り外す工程の後、前記一対のスロット収容部のうちの他方のスロット収容部を、前記第１スロットから周方向に離れた位置に位置する第２スロットに挿入する工程とを備える、ステータの製造方法。     A stator including a plurality of teeth, a plurality of slots formed between the teeth adjacent in the circumferential direction, and a coil including a pair of slot housing portions housed in the slots different from each other. A manufacturing method,
    Attaching a coil holding jig that restricts deformation of at least a part of the coil by holding the coil to each of the plurality of coils;
    After the step of attaching the coil holding jig, one of the pair of slot receiving portions of the coil to which the coil holding jig is attached is one of the plurality of slots. Placing in the first slot,
    A step of removing the coil holding jig from the coil after the step of disposing the one slot accommodating portion,
    After the step of removing the coil holding jig, the step of inserting the other slot accommodation portion of the pair of slot accommodation portions into the second slot located at a position distant from the first slot in the circumferential direction. A method of manufacturing a stator, comprising:
  2. 　前記コイル保持治具は、２つの板部材を含み、
    　前記コイル保持治具を取り付ける工程は、前記コイルを、前記ステータコアの周方向両側から前記２つの板部材により挟み込むように保持することにより、前記ステータコアの周方向における前記コイルの変形を規制する前記コイル保持治具を取り付ける工程である、請求項１に記載のステータの製造方法。     The coil holding jig includes two plate members,
    In the step of attaching the coil holding jig, the coil is held so as to be sandwiched by the two plate members from both sides in the circumferential direction of the stator core, thereby restricting the deformation of the coil in the circumferential direction of the stator core. The method for manufacturing a stator according to claim 1, which is a step of attaching a holding jig.
  3. 　前記コイル保持治具は、前記２つの板部材を前記２つの板部材の各々の軸方向一方側の端部近傍において接続する接続部を含み、
    　前記一方のスロット収容部を配置する工程は、前記コイルを前記ステータコアに対して前記ステータコアの軸方向一方側に移動させて、前記接続部を先端として前記一方のスロット収容部を前記第１スロットに挿入する工程である、請求項２に記載のステータの製造方法。     The coil holding jig includes a connecting portion that connects the two plate members in the vicinity of one axial end of each of the two plate members.
    In the step of arranging the one slot accommodating portion, the coil is moved to one side in the axial direction of the stator core with respect to the stator core, and the one slot accommodating portion is set to the first slot with the connecting portion as a tip. The method of manufacturing a stator according to claim 2, which is a step of inserting.
  4. 　前記コイル保持治具を取り付ける工程は、前記接続部を支点として、前記２つの板部材の間を開放させた状態で、前記コイルを前記コイル保持治具に配置するとともに、前記２つの板部材の間を閉じた状態で、前記コイルを前記２つの板部材により挟み込むように保持する工程である、請求項３に記載のステータの製造方法。 In the step of attaching the coil holding jig, the coil is placed on the coil holding jig with the connection portion serving as a fulcrum and the space between the two plate members is opened, and the coil holding jig is attached. The stator manufacturing method according to claim 3, which is a step of holding the coil so as to be sandwiched by the two plate members in a state in which the space is closed.
  5. 　前記コイル保持治具には、前記ステータコアの軸方向他方側に開口する開口部が設けられており、
    　前記コイルは、導線が巻回されて形成されており、
    　前記コイル保持治具を取り付ける工程は、前記開口部を介して前記コイルの巻回内側に設けられた巻芯を保持する巻芯保持治具により前記コイルを保持した状態で、前記コイル保持治具を取り付ける工程である、請求項３または４に記載のステータの製造方法。     The coil holding jig is provided with an opening that opens to the other axial side of the stator core,
    The coil is formed by winding a conductive wire,
    In the step of attaching the coil holding jig, the coil holding jig is held in a state in which the coil is held by a winding core holding jig which holds a winding core provided inside the winding of the coil through the opening. The method for manufacturing a stator according to claim 3, which is a step of mounting.
  6. 　前記コイル保持治具を取り付ける工程は、絶縁部材を前記コイルと前記コイル保持治具との間に挟み込むように、前記コイル保持治具を前記コイルに取り付ける工程である、請求項１～５のいずれか１項に記載のステータの製造方法。 6. The step of attaching the coil holding jig is a step of attaching the coil holding jig to the coil such that an insulating member is sandwiched between the coil and the coil holding jig. 2. The method for manufacturing a stator according to item 1.
  7. 　前記一方のスロット収容部を配置する工程は、治具押圧部材により、前記コイル保持治具を前記ステータコアの軸方向一方側に押圧することにより、前記コイル保持治具が取り付けられた前記コイルの前記一方のスロット収容部を、前記第１スロットに挿入する工程である、請求項１～６のいずれか１項に記載のステータの製造方法。 In the step of arranging the one slot accommodating portion, the jig holding member presses the coil holding jig toward one side in the axial direction of the stator core, and thus the coil holding jig is attached to the coil holding jig. 7. The method for manufacturing a stator according to claim 1, which is a step of inserting one of the slot accommodating portions into the first slot.
  8. 　前記一方のスロット収容部を配置する工程は、前記治具押圧部材により、前記コイル保持治具を前記ステータコアの軸方向一方側に押圧することにより、前記一方のスロット収容部を前記第１スロットに挿入するとともに、前記治具押圧部材と一体的に移動する押圧位置規制部材が前記ステータコアの軸方向端面に接触して、前記治具押圧部材の軸方向一方側への移動が規制されることにより、前記一方のスロット収容部の前記第１スロットにおける軸方向位置を規制する工程である、請求項７に記載のステータの製造方法。 In the step of arranging the one slot accommodating portion, the jig pressing member presses the coil holding jig toward one side in the axial direction of the stator core, so that the one slot accommodating portion is moved to the first slot. A pressing position regulating member that moves integrally with the jig pressing member comes into contact with the axial end surface of the stator core while being inserted, and the movement of the jig pressing member to the one axial side is restricted. The method for manufacturing a stator according to claim 7, which is a step of restricting an axial position of the one slot housing portion in the first slot.
  9. 　前記コイルは、導線が巻回されて形成されており、
    　前記コイル保持治具を取り外す工程は、前記コイルの巻回内側をコイル位置固定治具により保持することによって、前記コイルの軸方向位置を固定した状態で、前記コイル保持治具を前記ステータコアに対して軸方向一方側に相対移動させることにより、前記コイル保持治具を取り外す工程である、請求項１～８のいずれか１項に記載のステータの製造方法。     The coil is formed by winding a conductive wire,
    In the step of removing the coil holding jig, the inside of the coil is held by a coil position fixing jig to fix the axial position of the coil to the coil holding jig with respect to the stator core. 9. The method of manufacturing a stator according to claim 1, wherein the coil holding jig is removed by relatively moving the coil holding jig toward one side in the axial direction.
  10. 　前記コイル保持治具は、前記ステータコアの軸方向他方側に開口する開口部が設けられており、
    　前記コイル保持治具を取り外す工程は、前記開口部よりも前記ステータコアの軸方向一方側において前記コイル位置固定治具により前記コイルを保持した状態から、前記コイル保持治具を前記ステータコアに対して軸方向一方側に相対移動させることにより、前記開口部を前記コイル位置固定治具が軸方向に通過させるように、前記コイル保持治具を取り外す工程である、請求項９に記載のステータの製造方法。     The coil holding jig is provided with an opening that opens to the other axial side of the stator core,
    In the step of removing the coil holding jig, the coil holding jig is axially attached to the stator core from a state in which the coil is held by the coil position fixing jig on one axial side of the stator core with respect to the opening. 10. The method for manufacturing a stator according to claim 9, which is a step of removing the coil holding jig so that the coil position fixing jig passes through the opening in the axial direction by being relatively moved to one side in the direction. ..
  11. 　前記一方のスロット収容部を配置する工程は、前記コイル保持治具が取り付けられた前記コイルの前記一方のスロット収容部を、前記スロットに配置するとともに、前記他方のスロット収容部を、コイル変形用治具に配置する工程であり、
    　前記コイル保持治具を取り外す工程の後で、かつ、前記他方のスロット収容部を挿入する工程の前に、前記他方のスロット収容部を、前記コイル変形用治具により、前記一方のスロット収容部に対して前記ステータコアの周方向に移動させることにより、前記コイルを変形する工程をさらに備える、請求項１～１０のいずれか１項に記載のステータの製造方法。     In the step of arranging the one slot accommodating portion, the one slot accommodating portion of the coil to which the coil holding jig is attached is arranged in the slot, and the other slot accommodating portion is used for coil deformation. It is a process of placing it on the jig,
    After the step of removing the coil holding jig and before the step of inserting the other slot accommodation portion, the other slot accommodation portion is removed by the coil deformation jig from the one slot accommodation portion. The method for manufacturing a stator according to any one of claims 1 to 10, further comprising a step of deforming the coil by moving the coil in the circumferential direction of the stator core.
  12. 　複数のティースと、周方向に隣り合う夫々の前記ティースの間に形成される複数のスロットとを備えるステータコアと、互いに異なる前記スロットに収容される一対のスロット収容部を含むコイルとを備えるステータの製造装置であって、
    　複数の前記コイルの各々に、前記コイルを保持することにより前記コイルの少なくとも一部の変形を規制するコイル保持治具と、
    　前記コイル保持治具が取り付けられた前記コイルの前記一対のスロット収容部のうちの一方のスロット収容部を、前記複数のスロットのうちの１つである第１スロットに配置する第１コイル配置部と、
    　前記コイル保持治具が取り外された状態で、前記一対のスロット収容部のうちの他方のスロット収容部を、前記一方のスロット収容部が配置された前記第１スロットから周方向に離れた位置に位置する第２スロットに挿入する第２コイル配置部とを備える、ステータの製造装置。     A stator including a plurality of teeth, a plurality of slots formed between the teeth adjacent in the circumferential direction, and a coil including a pair of slot housing portions housed in the slots different from each other. Manufacturing equipment,
    A coil holding jig that restricts deformation of at least a part of the coil by holding the coil in each of the plurality of coils,
    A first coil arranging section that arranges one slot accommodating section of the pair of slot accommodating sections of the coil to which the coil holding jig is attached in a first slot that is one of the plurality of slots. When,
    With the coil holding jig removed, place the other slot accommodation portion of the pair of slot accommodation portions in a position distant from the first slot in which the one slot accommodation portion is arranged in the circumferential direction. An apparatus for manufacturing a stator, comprising: a second coil placement portion that is inserted into a second slot located.
  13. 　前記コイル保持治具は、前記コイルを、前記ステータコアの周方向両側から挟み込むように保持する２つの板部材を含む、請求項１２に記載のステータの製造装置。 The stator manufacturing apparatus according to claim 12, wherein the coil holding jig includes two plate members that hold the coil so as to sandwich the coil from both sides in the circumferential direction of the stator core.
  14. 　前記コイル保持治具は、前記２つの板部材を前記２つの板部材の各々の端部近傍において接続する接続部を含む、請求項１３に記載のステータの製造装置。 The stator manufacturing apparatus according to claim 13, wherein the coil holding jig includes a connecting portion that connects the two plate members in the vicinity of respective ends of the two plate members.
  15. 　前記２つの板部材の少なくとも一方は、前記ステータコアの軸方向に開口する開口部が設けられていることにより、前記ステータコアの周方向から見て、Ｕ字状を有するように形成されている、請求項１３または１４に記載のステータの製造装置。 At least one of the two plate members is formed to have a U-shape when viewed in the circumferential direction of the stator core by providing an opening that opens in the axial direction of the stator core. Item 15. The apparatus for manufacturing a stator according to Item 13 or 14.
PCT/JP2019/029824 2018-11-30 2019-07-30 Stator manufacturing method and stator manufacturing device WO2020110372A1 (en)

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JP2005192327A (en) * 2003-12-25 2005-07-14 Mitsubishi Electric Corp Coil-inserting method, device thereof, electric motor, rotary compressor, and refrigeration cycle
JP2009142092A (en) * 2007-12-07 2009-06-25 Mitsubishi Electric Corp Coil inserting method and coil inserting device
JP2017046373A (en) * 2015-08-24 2017-03-02 株式会社林工業所 Method of inserting coil into slot, and coil insertion device
JP2018057252A (en) * 2016-09-21 2018-04-05 アイシン・エィ・ダブリュ株式会社 Manufacturing method of stator
JP2018170881A (en) * 2017-03-30 2018-11-01 アイシン・エィ・ダブリュ株式会社 Manufacturing method of stator

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* Cited by examiner, † Cited by third party
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JP2005192327A (en) * 2003-12-25 2005-07-14 Mitsubishi Electric Corp Coil-inserting method, device thereof, electric motor, rotary compressor, and refrigeration cycle
JP2009142092A (en) * 2007-12-07 2009-06-25 Mitsubishi Electric Corp Coil inserting method and coil inserting device
JP2017046373A (en) * 2015-08-24 2017-03-02 株式会社林工業所 Method of inserting coil into slot, and coil insertion device
JP2018057252A (en) * 2016-09-21 2018-04-05 アイシン・エィ・ダブリュ株式会社 Manufacturing method of stator
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