WO2006080465A1 - Bobine, unite de bobine, stator et rotor - Google Patents

Bobine, unite de bobine, stator et rotor Download PDF

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Publication number
WO2006080465A1
WO2006080465A1 PCT/JP2006/301365 JP2006301365W WO2006080465A1 WO 2006080465 A1 WO2006080465 A1 WO 2006080465A1 JP 2006301365 W JP2006301365 W JP 2006301365W WO 2006080465 A1 WO2006080465 A1 WO 2006080465A1
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WO
WIPO (PCT)
Prior art keywords
coil unit
phase coil
groove
axis
wire
Prior art date
Application number
PCT/JP2006/301365
Other languages
English (en)
Japanese (ja)
Inventor
Tatsuaki Uratani
Takeo Kawashima
Original Assignee
Mostec Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mostec Inc. filed Critical Mostec Inc.
Publication of WO2006080465A1 publication Critical patent/WO2006080465A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/065—Windings consisting of complete sections, e.g. coils, waves
    • H02K15/066—Windings consisting of complete sections, e.g. coils, waves inserted perpendicularly to the axis of the slots or inter-polar channels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots

Definitions

  • the present invention relates to a coil and a coil unit used in a motor or a generator, a rotor using the same, a stator, and the like.
  • electric motors used for electric vehicles and hybrid vehicles have a cylindrical stator coil, a cylindrical rotor disposed inside the stator coil, and a shaft connected to the rotor. It is composed of As this stator coil, there is a stator coil in which an inner tooth of a stator iron core having an internal tooth shape is provided with a winding wire from the radial inner side of the stator core. Further, a winding device has been proposed in which this winding is automatically wound on the inner teeth of the stator iron core (see, for example, JP-A-2004-194435 (referred to as reference 1)).
  • FIG. 42 is a configuration perspective view of a conventional stator created by the winding device described in Document 1.
  • FIG. 43 is a partially enlarged view of the stator of FIG.
  • the conventional stator 120 is a three-phase, eight-pole, distributed-type stator.
  • the stator 120 has a stator iron core 130 having 48 teeth (inner teeth) 131 and slots 132 in a ring shape in plan view.
  • the stator 120 has eight U-phase coils 151, V-phase coils 161, and W-phase coils 171, respectively.
  • each coil unit is arranged in the order of U-phase coil 151, V-phase coil 161, and W-phase coil 171 from the outer periphery of stator core 130 in the direction of central axis 130X.
  • the transition portions 152 and 162 of the U-phase coil 151 and the V-phase coil 161 are arranged from the outer periphery of the stator core so that the three types of coils do not interfere with each other.
  • FIG. 44 is a configuration diagram of the winding device described in Document 1.
  • the winding device 1100 includes a stator holding portion 1151 for holding the stator core 130, a strand discharge device 1110, and an arm 1220 for pushing the strand into the slot 132 of the stator core 130.
  • FIG. 45 is a block diagram of the strand discharge device 1110.
  • the strand discharge device 1110 has a linear nozzle 1113 that discharges strands forming a U-phase, V-phase, or W-phase coil in a row in the direction of the slot 132.
  • a first roller 1114 and a second roller 1115 having axes in a direction orthogonal to the longitudinal direction of the linear nozzle 1113 are installed.
  • the strands 140 are supplied in two groups from above the strand discharge device 1110, and are arranged and discharged in one row via rollers.
  • FIG. 46 is an enlarged view of a stator in which only the U-phase coil 151 is arranged.
  • the strands 140 arranged in a row and ejected from the linear nozzle 1113 of the strand ejection device 1110 are inserted into a predetermined slot 132a. Then, the wire 140 is wound around the slot 132a and the corresponding slot 132b by the vertical movement of the wire discharge device 1110 and the rotation operation of the stator holding portion 1151. Further, the strand 140 is pushed into the slot 132a and the slot 132b by the arm 1220, and the transition portion 152 does not interfere with the V-phase coil 161 and the W-phase coil 171 that will be formed later, so that the stator core It is arranged from the outer peripheral side of 130.
  • the strand discharge device 1110 discharges the strands 140 arranged in a line by changing the arrangement direction of the strands 140 with rollers 1114 and 1115.
  • the wire 140 is a square wire, a flat wire, etc., it was not applicable.
  • the U-phase coil transition portion 152 and the V-phase coil transition portion 162 are arranged on the outer side of the stator core 130 by the operation of the arm 1220.
  • the wire 140 is a flat wire or the like, it is difficult to arrange the wires 140 in a certain direction such as a thickness direction or a width direction, and the space factor is reduced.
  • the winding device of Document 1 it is difficult to form a coil in the case of a square wire, a flat wire, or the like.
  • the object of the present invention is to improve the space factor, or not only to the shape of the wire, but also to be easily manufactured.
  • the first aspect of the present invention provides:
  • the first side, the second side, the third side, and the fourth side are arranged in order based on the direction in which the wire is wound,
  • the lamination directions specified by the beginning and end of the wire rod are substantially the same direction, and the two sets Each of the specified stacking directions in the other one pair of the second side and the fourth side is a coil that is different from the one set of stacking directions.
  • the second aspect of the present invention provides:
  • the stacking directions on the second side and the fourth side are the same as each other and are substantially opposite to the one set of stacking directions.
  • the third aspect of the present invention provides
  • the stacking directions of the second side and the fourth side are different from each other.
  • the fourth aspect of the present invention provides
  • the stacking directions of the second side and the fourth side are substantially opposite to each other and are substantially perpendicular to the one set of stacking directions. is there.
  • the fifth aspect of the present invention provides
  • the coil of the third aspect of the present invention is a direction larger than 90 degrees and smaller than 180 degrees with respect to the one set of stacking directions.
  • the sixth aspect of the present invention provides:
  • the wire is the coil according to the first aspect of the present invention, which is a flat wire.
  • the seventh aspect of the present invention provides
  • the rectangular wire is the coil according to the sixth aspect of the present invention, which is laminated in the thickness direction of the rectangular wire.
  • the flat wire is the coil according to the sixth aspect of the present invention, wherein the thickness and the width continuously change in the length direction.
  • the ninth aspect of the present invention provides:
  • the flat wire is the coil of the sixth aspect of the present invention having the same cross-sectional area at an arbitrary position in the length direction.
  • the coil unit according to any one of the first to ninth aspects of the present invention is a coil unit continuously connected.
  • Each of the first sides of the plurality of coils is arranged such that surfaces of the first sides are adjacent to each other.
  • Each of the third sides of the plurality of coils is disposed such that surfaces of the third sides are adjacent to each other.
  • each of the first side and the third side of the plurality of coils is substantially the same as the stacking direction of the wires of the first side and the third side.
  • each of the second sides of the plurality of coils are continuously connected, and at least some of the coils overlap each other.
  • the side surfaces of the fourth side of each of the plurality of coils are at least partially overlapped with each other between the continuously connected coils. 10 coil units of the present invention.
  • the number of laminated wires in the first side and the third side of all the plurality of coils is the same.
  • the first side and the third side are the coil units inserted into slots of a substantially cylindrical stator
  • the first side and the third side are perpendicular to the stacking direction of the wires.
  • the coil shoe of the eleventh aspect of the present invention wherein the width of the wire in the direction is equal to or less than the width of the slot.
  • the first side and the third side are the coil units inserted into slots of a rotor disposed inside a substantially cylindrical stator
  • a width of the wire in a direction perpendicular to the stacking direction of the wires in each of the first side and the third side is equal to or less than a width of the slot. is there.
  • the first side and the third side are the coil units to be inserted into slots of a stator disposed inside a substantially cylindrical outer rotor,
  • a width of the wire in a direction perpendicular to the stacking direction of the wires in each of the first side and the third side is equal to or less than a width of the slot. is there.
  • the second side and the fourth side in the coil unit according to any one of the thirteenth to fifteenth aspects of the present invention may be substantially curved along a circumferential shape of the stator or the rotor.
  • the length direction force of the wire on the first side and the length direction force of the wire on the third side are parallel to each other, and the central axis of the stator It may be arranged so as to be parallel to.
  • the length direction of the wire on the first side and the length direction of the wire on the third side are parallel to each other, and the center of the stator You may arrange
  • the interval between the adjacent slots is narrowed toward the central axis of the stator, and the stacking direction force on the first side and the third side is mounted so as to be directed toward the central axis side.
  • the interval between the stacking direction of the first side and the stacking direction of the third side may be narrowed by directing the central axis of the stator so as to match the interval between the adjacent slots. .
  • the sixteenth aspect of the present invention provides A substantially cylindrical stator core having a plurality of cores and slots formed by urging forces toward the cylindrical central axis;
  • a stator comprising the coil unit of the thirteenth aspect of the present invention, wherein the first side and the third side are each inserted into two slots, and are attached to the core.
  • the seventeenth aspect of the present invention provides
  • a rotor core having a plurality of cores and slots formed on the outer peripheral surface toward the inner peripheral surface of the substantially cylindrical stator facing the outer peripheral surface;
  • a rotor comprising the coil unit of the fourteenth aspect of the present invention, wherein the first side and the third side are each inserted into two slots, and are attached to the core.
  • a stator core having a plurality of cores and slots formed on the outer peripheral surface toward the inner peripheral surface of the substantially cylindrical outer rotor facing the outer peripheral surface, and the first side and the third side are: And a coil unit according to a fifteenth aspect of the present invention, which is attached to the core by being inserted into each of the two slots.
  • the nineteenth aspect of the present invention provides
  • a substantially cylindrical stator core having a plurality of cores and slots formed by urging forces toward the cylindrical central axis;
  • An eleventh coil unit of the present invention used as a U-phase coil unit in which the coils of the second present invention are connected;
  • An eleventh coil unit of the present invention used as a V-phase coil unit in which the coils of the fifth invention are connected;
  • An eleventh coil unit of the present invention used as a W-phase coil unit connected to the coil of the fourth present invention
  • the W-phase coil unit, the U-phase coil unit, and the V-phase coil unit are attached to the core by inserting the first side and the third side into the slot,
  • the direction in which the wires on the second side and the fourth side of the V-phase coil unit overlap is formed so as not to interfere with the U-phase coil unit and the W-phase coil unit! It is a stator.
  • the twentieth aspect of the present invention provides
  • Each of the coils in the plurality of coils has a stacking direction in each of the second side and the fourth side that is substantially opposite to each other and substantially perpendicular to the stacking direction.
  • the side surface of the second side is adjacent between the continuously connected coils, and the side surface of the fourth side is adjacent between the continuously connected coils. It is a coil unit of the eleventh aspect of the present invention.
  • the 21st aspect of the present invention provides
  • Each of the second side and the fourth side of the plurality of coils is arranged from one surface of the first side of the coil cut or from the other surface. It is a coil unit of the present invention.
  • each of the second side and the fourth side of the plurality of coils is arranged from the coil in the center of the first side of the coil cut. It is.
  • the first side and the third side are the coil units inserted into slots of a substantially cylindrical stator
  • the width of the wire in the direction perpendicular to the stacking direction of the wires on each of the first side and the third side is equal to or less than the width of the slot
  • the second side and the fourth side are the coil units according to the twenty-first aspect of the present invention, which are arranged from the outer peripheral side of the stator.
  • the first side and the third side are the coil units inserted into slots of a substantially cylindrical stator
  • the width of the wire in the direction perpendicular to the stacking direction of the wires on each of the first side and the third side is equal to or less than the width of the slot;
  • the second side and the fourth side are the coil units according to the twenty-first aspect of the present invention, which are arranged from the inner peripheral side of the stator.
  • a substantially cylindrical stator core having a plurality of cores and slots formed by urging forces toward the cylindrical central axis;
  • the coil unit of the twenty-third aspect of the present invention used as a U-phase coil unit
  • the coil unit of the twenty-second aspect of the present invention used as a V-phase coil unit
  • a coil unit according to the twenty-fourth aspect of the present invention which is used as a W-phase coil unit, wherein the U-phase coil unit, the V-phase coil unit, and the W-phase coil unit each have a first side in the slot. And is attached to the core by inserting the third side,
  • the U-phase coil unit is disposed from the outer peripheral side of the stator, the W-phase coil unit is disposed from the inner peripheral side of the stator, and the V-phase coil unit includes the U-phase coil unit and the V-phase coil unit. Between the phase coil units,
  • the heights of the second side and the fourth side of the U-phase coil unit, the V-phase coil unit, and the W-phase coil unit are the same.
  • the coil, the coil unit, the stator, and the rotor that can further improve the space factor or can be manufactured more easily without being limited to the shape of the wire. Can be provided.
  • FIG. 1 is a perspective view of a U-phase coil unit according to Embodiment 1 of the present invention.
  • FIG. 2 (a) Front view of U-phase coil unit according to Embodiment 1 of the present invention, (b) Top view of U-phase coil unit according to Embodiment 1 of the present invention, (c) Implementation of the present invention Right side view of U-phase coil unit in Form 1 (d) Left side view of U-phase coil unit in Embodiment 1 of the present invention
  • FIG. 3 is a perspective view intentionally separated for explaining the interval of each coil of the U-phase coil unit according to Embodiment 1 of the present invention.
  • FIG. 4 (a) Explanation of intervals between coils of the U-phase coil unit according to Embodiment 1 of the present invention. (B) Side view intentionally separated for the purpose of explanation for the interval of each coil of the U-phase coil unit in Embodiment 1 of the present invention.
  • FIG. 5 is a perspective view in which the interval of 1 to 3 turns of the first coil of the U-phase coil unit in Embodiment 1 of the present invention is intentionally separated for the purpose of explanation.
  • FIG. 6 (a) Front view intentionally separating the first to third turns of the first coil of the U-phase coil unit in Embodiment 1 of the present invention for explanation, (b) FIG. 3 is a top view in which the first to third turns of the first coil of the U-phase coil unit in Embodiment 1 are intentionally separated for explanation, (c) the U-phase coil unit in Embodiment 1 of the present invention. 1st coil of 1 ⁇
  • FIG. 7 is a perspective view of a V-phase coil unit according to Embodiment 2 of the present invention.
  • FIG. 8 (a) Front view of V-phase coil unit according to Embodiment 2 of the present invention, (b) Top view of V-phase coil unit according to Embodiment 2 of the present invention, (c) Implementation of the present invention Right side view of the V-phase coil unit in Form 2, (d) Left side view of the V-phase coil unit in Embodiment 2 of the present invention
  • FIG. 9 is a perspective view intentionally separated for explaining the interval of each coil of the V-phase coil unit according to the second embodiment of the present invention.
  • FIG. 10 (a) A top view intentionally separated for the purpose of explaining the intervals of the coils of the V-phase coil unit in Embodiment 2 of the present invention. (B) V in Embodiment 2 of the present invention. Left side view with intentionally separated spacing for each coil in the phase coil unit
  • FIG. 11 is a perspective view in which the interval of 1 to 3 turns of the first coil of the V-phase coil unit according to Embodiment 2 of the present invention is intentionally separated for explanation.
  • FIG. 12 (a) Front view of the first coil of the V-phase coil unit according to Embodiment 2 of the present invention intentionally spaced apart for the purpose of explanation, (b) FIG. 5 is a top view in which the interval of 1 to 3 turns of the first coil of the V-phase coil unit in Embodiment 2 is intentionally separated for explanation, (c) the V-phase coil unit in Embodiment 2 of the present invention 1st coil of 1 ⁇
  • FIG. 13 is a perspective view of a W-phase coil unit according to Embodiment 3 of the present invention.
  • FIG. 14 (a) Front view of a W-phase coil unit according to Embodiment 3 of the present invention, (b) The present invention 3 is a top view of the W-phase coil unit in the third embodiment of the present invention, (c) a right side view of the W-phase coil unit in the third embodiment of the present invention, and (d) the W-phase coil unit in the third embodiment of the present invention.
  • FIG. 15 is a perspective view intentionally separated for explaining the interval of each coil of the W-phase coil unit according to the third embodiment of the present invention.
  • FIG. 16 (a) A top view intentionally separated for the purpose of explaining the intervals of the coils of the W-phase coil unit in Embodiment 3 of the present invention. (B) W in Embodiment 3 of the present invention. Left side view with intentionally separated spacing for each coil in the phase coil unit
  • FIG. 17 is a perspective view in which the interval of 1 to 3 turns of the first coil of the W-phase coil unit in Embodiment 3 of the present invention is intentionally separated for the purpose of explanation.
  • FIG. 18 (a) Front view intentionally separating the first to third turns of the first coil of the W-phase coil unit in Embodiment 3 of the present invention for explanation, (b) The present invention.
  • FIG. 4 is a top view in which the interval of 1 to 3 turns of the first coil of the W-phase coil unit in Embodiment 3 of the present invention is intentionally separated for explanation, (c) W-phase coil in Embodiment 3 of the present invention Left side view intentionally spaced 1 to 3 turns apart from unit 1 coil
  • FIG. 19 (a) A perspective view of a stator according to Embodiment 4 of the present invention, (b) a plan view of the stator according to Embodiment 4 of the present invention, and (c) a stator according to Embodiment 4 of the present invention. Side view
  • FIG. 20 (a) A plan view of a stator according to the fourth embodiment of the present invention, (b) an enlarged view of the stator core slot according to the fourth embodiment of the present invention, and (c) a fourth embodiment of the present invention.
  • FIG. 22 (a) Front view of U-phase coil unit manufacturing jig in Embodiment 5, (b) Top view of U-phase coil unit manufacturing jig in Embodiment 5, and (c) In Embodiment 5.
  • FIG. 27 (a) Front view of U-phase coil unit manufacturing jig and manufactured U-phase coil unit in Embodiment 6, (b) manufactured with U-phase coil unit manufacturing jig in Embodiment 6. Top view of U-phase coil unit, (c) Right-side view of U-phase coil unit manufactured with U-phase coil unit manufacturing tool in Embodiment 6
  • FIG. 29 (a) Back view of V-phase coil unit manufacturing jig in Embodiment 7, (b) Top view of V-phase coil unit manufacturing jig in Embodiment 7, (c) In Embodiment 7 Left side view of V-phase coil unit manufacturing jig
  • FIG. 30 (a) Perspective view of V-phase coil unit manufacturing jig in Embodiment 7, (b) Disassembled perspective view of V-phase coil unit manufacturing jig in Embodiment 7.
  • FIG. 31 A diagram for explaining a method of manufacturing a V-phase coil unit according to the eighth embodiment of the invention related to the present invention.
  • FIG. 32 (a) Back view of U-phase coil unit manufacturing jig and manufactured U-phase coil unit in Embodiment 8, (b) Manufacturing with U-phase coil unit manufacturing jig in Embodiment 8. Top view of U-phase coil unit, (c) Left-side view of U-phase coil unit manufactured with U-phase coil unit manufacturing tool in Embodiment 8
  • FIG. 34 (a) Back view of W-phase coil unit manufacturing jig in Embodiment 9, (b) Top view of W-phase coil unit manufacturing jig in Embodiment 9, and (c) In Embodiment 9.
  • FIG. 35 (a) Perspective view of W-phase coil unit manufacturing jig in Embodiment 9, (b) Disassembled perspective view of W-phase coil unit manufacturing jig in Embodiment 9.
  • FIG. 36 (a) A diagram for explaining the fourth groove of the W-phase coil unit manufacturing jig in Embodiment 9, and (b) the fourth groove of the W-phase coil unit manufacturing jig in Embodiment 9.
  • FIG. 4 is a diagram for explaining the fourth groove of the W-phase coil unit manufacturing jig in the ninth embodiment.
  • FIG. 4D is a diagram for explaining the fourth groove of the W-phase coil unit manufacturing jig in the ninth embodiment. Illustration for explaining the 4th groove
  • FIG. 37 (a) A diagram for explaining a spacer holding jig of the W-phase coil unit manufacturing jig in Embodiment 9, and (b) a spacer of the W-phase coil unit manufacturing jig in Embodiment 9. Diagram for explaining spacer holding jig
  • FIG. 40 (a) Rear view of the W-phase coil unit manufacturing jig and the manufactured U-phase coil unit in the tenth embodiment. (B) Top view of W-phase coil unit manufacturing jig and manufactured U-phase coil unit in Embodiment 10; (c) W-phase coil unit manufacturing jig and manufactured U-phase in Embodiment 10; Left side view of coil unit
  • FIG. 41 (a) A plan view showing a modification of the U-phase coil unit manufacturing jig in the fifth embodiment.
  • (B) A side view showing a modified example of the U-phase coil unit manufacturing jig in the embodiment 5.
  • FIG.43 Enlarged perspective view of the main part of a conventional stator
  • FIG. 45 is a configuration diagram of a wire discharge device in a conventional winding device
  • FIG. 46 is an enlarged perspective view of the main part showing only the U-phase coil unit in the conventional stator.
  • FIG. 47 is a perspective view of the first coil of the U-phase coil unit in the first embodiment of the present invention.
  • FIG. 3 is a perspective view of the first coil of the V-phase coil unit in the second embodiment
  • FIG. 49 is a perspective view of the first coil of the W-phase coil unit in the third embodiment of the present invention.
  • FIG. 50 is a perspective view of a U-phase coil unit according to Embodiment 11 of the present invention.
  • FIG. 52 is a perspective view of the first coil of the U-phase coil unit according to Embodiment 11 of the present invention.
  • FIG. 53 is a perspective view of the V-phase coil unit according to Embodiment 12 of the present invention.
  • FIG. 54 (a) Front view of V-phase coil unit according to embodiment 12 of the present invention, (b) Top view of V-phase coil unit according to embodiment 12 of the present invention, (c) Implementation of the present invention. Right side view of the V-phase coil unit in Embodiment 1 2 of the present invention, (d) Left side view of the V-phase coil unit in Embodiment 12 of the present invention
  • FIG. 55 is a perspective view of the first coil of the V-phase coil unit according to Embodiment 12 of the present invention.
  • FIG. 56 is a perspective view of the W-phase coil unit according to Embodiment 13 of the present invention.
  • FIG. 57 (a) Front view of W-phase coil unit according to embodiment 13 of the present invention, (b) Top view of W-phase coil unit according to embodiment 13 of the present invention, (c) Implementation of the present invention. (D) Left side view of the W-phase coil unit in Embodiment 13 of the present invention
  • FIG. 58 is a perspective view of the first coil of the W-phase coil unit in the thirteenth embodiment of the present invention.
  • FIG. 59 is a perspective view of the stator in the fourteenth embodiment of the present invention.
  • FIG. 1 is a perspective view of a U-phase coil unit according to Embodiment 1 of the present invention.
  • 2 (a) to 2 (d) respectively show a front view, a top view, a right side view, and a left side view of the U-phase coil unit shown in FIG.
  • the X axis + direction is the right direction of the U-phase coil unit 1
  • the Y axis + direction is the upward direction
  • the Z axis + direction is the depth. Shows direction.
  • the other figures shown below are shown below.
  • the U-phase coil unit 1 As shown in FIG. 1, the U-phase coil unit 1 according to the first embodiment is configured by winding a single flat wire 2, and a winding start portion 3 and a winding end of the flat wire 2. Part 4 is provided. Further, as shown in the front views of FIGS. 1 and 2 (a), the U-phase coil unit 1 has a substantially rectangular shape when viewed from the front, and has a central space 5 of a twisted rectangular wire 2. It is made by turning counterclockwise from the beginning of the turn 3. In the front view of FIG.
  • the U-phase coil unit 1 is composed of a first side la located on one side of the X axis of the central space 5 and a second side lb located on one side of the Y axis lb, X A third side portion lc located on the axis + direction side and a fourth side portion Id located on the Y axis + direction side are provided.
  • the U-phase coil unit 1 includes a bent portion le that connects the first side portion la and the second side portion lb.
  • the second side portion lb, the third side portion lc, the fourth side portion ld, and the first side portion la are respectively provided with curved portions Slf, lg, and lh.
  • the second side lb and the fourth side Id are arranged in one direction of the Z axis with respect to the first side la and the third side lc.
  • the flat wire 2 has a thickness 2t and a width 2w as shown in the enlarged view of the portion p in FIG.
  • the rectangular line 2 has a width 2w with respect to the first side la, the second side lb, the third side lc, and the fourth side Id! / It is arranged so that its surface faces in one direction of the Z axis!
  • the first side la and the third side lc have a plurality of rectangular wires 2 stacked in the thickness 2t direction of the rectangular wire 2.
  • the stacking direction of the flat wire 2 at the first side la is the first direction li
  • the stacking direction at the third side is The third direction is lk.
  • the first direction li is inclined ⁇ degrees and the X axis + direction with respect to the Z axis + direction
  • the third direction lk is relative to the Z axis + direction. Tilted in the X axis direction.
  • the second side lb and the fourth side Id are curved so as to swell in one direction of the Z axis.
  • the second side portion lb is composed of four side portions lb to lb arranged sequentially in one direction along the Y axis.
  • the fourth side Id is also the Y axis + direction
  • each of the rectangular wires 2 in the four side portions Id to ld of the fourth side portion Id is also the same direction.
  • This second direction lj is inclined ⁇ degrees and Y axis + direction with respect to one direction of Z axis.
  • the fourth direction 11 is inclined ⁇ degrees and one Y-axis direction with respect to one Z-axis direction (see Fig. 3).
  • the U-phase coil unit 1 of the first embodiment includes a first coil 6 including the side lb and the side Id, a second coil 7 including the side lb and the side Id, and a side Part lb and side Id
  • FIG. 3 is a perspective view intentionally separated for the sake of explanation of the intervals between the coils of the U-phase coil unit according to the first embodiment of the present invention.
  • 4 (a) and 4 (b) show a top view and a side view of the U-phase coil unit shown in FIG.
  • Fig. 47 shows 5 is a perspective view of a first coil of a U-phase coil unit in mode 1.
  • FIG. 4 (a) and 4 (b) show a top view and a side view of the U-phase coil unit shown in FIG.
  • Fig. 47 shows 5 is a perspective view of a first coil of a U-phase coil unit in mode 1.
  • the whirling start portion 3 is disposed in the first coil 6. Then, the first coil 6, the second coil 7, the third coil 8, and the fourth coil 9 are formed in this order as the flat wire 2 is rolled from the winding start portion 3. Further, the winding end portion 4 is disposed in the fourth coil 9.
  • the number of turns of the rectangular wire 2 in each coil in the first embodiment (hereinafter referred to as the number of turns) is nine.
  • Each coil has a rectangular shape when viewed from the Z-axis direction.
  • the first coil 6 includes a first side 6a located on the X axis one direction side of the central space 5, a second side 6b located on the Y axis one direction side, the X axis + It has a third side part 6c located on the direction side and a fourth side part 6d located on the Y axis + direction side.
  • the second coil 7 includes a first side 7a, a second side 7b, a third side 7c, and a fourth side.
  • the third coil 8 includes a first side 8a, a second side 8b, a third side 8c, and a fourth side 8d
  • the fourth coil 9 includes a first side 9a, 2 side part 9b, 3rd side part 9c, and 4th side part 9d are provided.
  • a bent portion 6e is formed between the first side portion 6a and the second side portion 6b of the first coil 6, and similarly, the second side portion 6b Bent portions 6f, 6g, and 6h are formed between the third side portion 6c, the fourth side portion 6d, and the first side portion 6a.
  • the second to fourth coils 7, 8, 9 are similarly formed with bent portions.
  • each coil is composed of nine turns
  • each of the first to fourth sides and the bent portion has a structure in which nine rectangular wires 2 are laminated.
  • the first side portions 6a, 7a, 8a, 9a are sequentially arranged in the Z-axis + direction in sequence, and the third side portion 6c , 7c, 8c, 9c are also arranged so as to substantially overlap each other in the + Z-axis direction.
  • the second side portions 6b, 7b, 8b, 9b are arranged substantially in one Y-axis direction in sequence, and the fourth side portions 6d, 7d, 8d, 9d are substantially in sequence Y-axis + direction. Are placed on top of each other.
  • Each of Id and Id 1S corresponds to the fourth edge 6d, 7d, 8d and 9d of each coin. That is, the first The shapes of the coil 6 to the fourth coil 9 increase in order in the Y-axis direction and the Z-axis direction.
  • FIG. 5 is a perspective view in which the interval of 1 to 3 turns of the first coil of the U-phase coil unit 1 according to the first embodiment of the present invention is intentionally separated for explanation.
  • FIGS. 6 (a), (b), and (c) show a front view, a top view, and a left side view of the U-phase coil unit shown in FIG. 5, respectively.
  • Each surface of the rectangular wire 2 is illustrated as a surface 2a, the other surface as a surface 2b, a diagonal line on the surface 2a, and a dot on the surface 2b.
  • each coil is composed of 9 turns. Therefore, as shown in FIG. 5, the first side 6a of the first turn of the first coil 6 (see FIG. 3) is defined as the first side 6a.
  • the first side 6a of the second turn is numbered in order from the first side 6a to the ninth turn.
  • the first side 6a and a lowercase number are attached.
  • the first side 6a refers to the whole of 6a-6a.
  • Each coil is similarly numbered.
  • the starting portion 3 is connected to the first side portion 6a.
  • the surface 2b faces the front side (one direction of the Z axis) at the first side 6a and the third side 6c, and the surface 2a is normal at the second side 6b and the fourth side 6d. It is arranged to face the surface (Z axis-direction) side.
  • the flat wire 2 extends from the winding start portion 3 to the winding end portion so that the surface 2b faces the front (Z-axis-direction) side force toward the back (Z-axis + direction) side. It is twisted counterclockwise in the length direction with force directed to 4.
  • the flat wire 2 is twisted so that the surface 2a faces from the front side to the back side, that is, the surface 2b faces the front side.
  • the stacking direction of the rectangular wire 2 from the first turn to the ninth turn in each of the first side 6a, the second side 6b, the third side 6c, and the fourth side 6d in the first coil 6 is The first direction is 6i, the second direction is 6j, the third direction is 6k, and the fourth direction is 61.
  • the first direction 6i is 0 degrees from the Z axis + direction, and the X axis
  • the third direction 6k is tilted ⁇ degrees from the Z axis + direction and the X axis ⁇ direction. ing.
  • the second direction 6j is inclined ⁇ degrees from the Z-axis direction and Y-axis + direction, and the fourth direction
  • 61 is inclined ⁇ degrees from the Z-axis direction and Y-axis direction. In other words, on the first side 6a
  • the stacking direction 6i and the stacking direction 6k of the third side portion 6c are close to each other as they go in the Z-axis + direction.
  • the stacking direction 6j in the second side portion 6b and the stacking direction 61 in the fourth side portion 6d are in a relationship of getting closer to each other in the Z-axis direction.
  • the flat wire 2 is laminated in the same lamination direction as each side portion of the first coil 6.
  • the lamination direction of the flat wires in the first side and the third side is substantially the Z-axis + direction, and in the second side and the fourth side. It can be said that the flat wire is laminated in the same direction as the Z axis, which is the opposite direction to the Z axis + direction.
  • the rectangular wire 2 starts from the first side portion 6a, and is formed in this order from the second side portion 6b, the third side portion 6c, and the fourth side portion 6d.
  • a first turn of 6 is formed.
  • the first side 6a force of the second turn is formed on the Z axis + direction side of the first side 6a, and the second side
  • Part 6b 1S Formed on the Z-axis direction side of the second side part 6b.
  • the fourth side 6d is a force that appears to be arranged in the + direction of the Z axis. This is for the purpose of explanation, and represents the state in which each turn is drawn to the near side in the figure.
  • the third side 6c force is formed on the Z axis + direction side of the third side 6c, and the fourth side 6d force
  • a first side 7a of one turn is formed, and the second coil 7 is formed in the same manner as the first coil 6.
  • Each coil is defined by the 4th side of the 9th turn of the coil and the 1st side of the 1st turn of the next coil. The joints are connected seamlessly.
  • the first direction li and the third direction lk which are not strictly limited, may be substantially the Z axis + direction.
  • the above-described ⁇ degree is also described in detail below.
  • the second direction lj and the fourth direction 11 need only be in one direction of the Z axis, as long as the angles do not interfere with each other.
  • first direction li and the third direction lk, and the second direction lj and the fourth direction 11 are substantially opposite directions. Further, the first direction and the third direction, and the second direction and the fourth direction in each of the first coil 6 to the fourth coil 9 are also substantially opposite directions.
  • the first side, the second side, the third side, and the fourth side of the present invention are, for example, the first side 6a and the second side 6b of the first coil 6 of the first embodiment. , Corresponding to the third side 6c and the fourth side 6d.
  • the respective laminating directions specified by the beginning and end of winding of the wire material in the first side and the third side of the set are substantially the same direction to each other.
  • “A certain” corresponds to, for example, that the first direction 6i and the third direction 6k of the first embodiment are substantially the same direction.
  • the respective laminating directions on the second side and the fourth side are substantially the same as each other and substantially opposite to the one set of laminating directions.
  • the first direction 6i and the third direction 6k that are substantially the same direction of the first embodiment are the Z axis + direction
  • the second direction 6j and the fourth direction are substantially the same direction. This corresponds to the direction 61 being one direction of the Z axis.
  • the aspect of the present invention refers to, for example, the position of the fourth side portion 6d on the Y axis + and side formed by the end surface having the thickness 2t of the plurality of rectangular wires 2 in the first embodiment. It corresponds to the surface to be done.
  • the surface of the present invention is the surface of the laminated side portions, for example, formed in the first coil 6 of the first embodiment by a surface having a width 2w of the flat wire 2. It corresponds to the surface located on the Z-axis side and + side of the first side 6a.
  • the first sides of the plurality of coils are arranged so that the surfaces of the first sides are adjacent to each other. This corresponds to the fact that the first direction 6i of Form 1 is substantially the Z-axis + direction, and the first sides 6a, 7a, 8a, 9a are also arranged in the substantially Z-axis + direction in this order.
  • the third sides of the plurality of coils are arranged so that the surfaces of the third sides are adjacent to each other.
  • the third direction 6k is substantially the Z-axis + direction
  • the third sides 6c, 7c, 8c, and 9c are also substantially sequentially arranged in the Z-axis + direction.
  • the side surface of each of the second sides of the plurality of coils is at least partially between the coils.
  • Overlapping '' means, for example, that the second sides 6b, 7b, 8b, 9b in Embodiment 1 are arranged in the Y-axis direction in order, so that the side of the second side 6b When viewed from the direction of the radial axis, this corresponds to the fact that the side surfaces of the second side of the first to fourth coils substantially overlap the radial direction (see FIGS. 2 and 3).
  • the side surface of each of the fourth side of the plurality of coils is at least partially between the coils.
  • Overlapping '' means, for example, that the fourth sides 6d, 7d, 8d, 9d in the first embodiment are arranged in the Y-axis + direction in this order, so that the side surface of the fourth side 6d is vertical.
  • this corresponds to the fact that the side surfaces of the fourth side of the first to fourth coils substantially overlap in the radial direction (see FIGS. 2 and 3).
  • V-phase coil unit according to the second embodiment which is an example of the coil unit of the present invention, will be described below, and an example of the coil of the present invention will be described at the same time.
  • FIG. 7 is a perspective view of the V-phase coil unit according to the second embodiment of the present invention.
  • FIGS. 8 (a;) to (d) show a front view, a top view, a right side view, and a left side view of the V-phase coil unit shown in FIG. 7, respectively.
  • FIG. 9 shows each coil of the V-phase coil unit according to the second embodiment that is useful for the present invention. It is the perspective view which left
  • FIGS. 10 (a) and 10 (b) show a top view and a left side view of the V-phase coil unit shown in FIG.
  • FIG. 48 is a perspective view of the first coil of the V-phase coil unit according to the second embodiment.
  • FIG. 11 is a perspective view intentionally separated for the sake of explanation of the interval of 1 to 3 turns of the first coil of the V-phase coil unit according to the second embodiment that is useful for the present invention.
  • FIGS. 12 (a), 12 (b), and 12 (c) respectively show a front view, a top view, and a left side view of the V-phase coil unit shown in FIG.
  • the V-phase coil unit 11 has the same basic configuration as the U-phase coil unit 1 of the first embodiment described above.
  • the lamination direction of the rectangular wires 2 on the second side and the fourth side of the V-phase coil unit 11 is different from that of the first embodiment. Therefore, this difference will be mainly described.
  • the reference numerals indicating the respective parts in the V-phase coil unit 11 are those obtained by adding 10 to the reference numerals indicating the respective parts of the U-phase coil unit 1.
  • the description of the reference numerals of the V-phase coil unit 11 is omitted for the basically common parts.
  • the first direction 16i and the third direction 16k in the first coil 16 of the V-phase coil unit 11 are different from those of the first coil 6 of the U-phase coil unit 1.
  • the direction is the same as the first direction 6i and the third direction 6k.
  • the second direction 16j is inclined in one direction of ⁇ degrees and Y axis with respect to one direction of the Z axis, and the fourth direction 161 is ⁇ degrees in one direction of Y axis + Y axis + direction.
  • the second direction lj is the same as the second direction 16j of the first coil 16, and ⁇ degree in one direction of Y axis
  • the fourth direction 111 is the same as the fourth direction 161 of the first coil 16 and is inclined in the ⁇ -degree Y-axis + direction with respect to the Z-axis direction.
  • the ⁇ degrees are the same as the U-phase coil unit 1 of the first embodiment and the V-phase coil of the second embodiment.
  • ⁇ can take a value greater than 0 degrees and less than 90 degrees.
  • the second direction l lj and the fourth direction 111 are different directions, 90 degrees with respect to the Z axis + direction, which is substantially the same direction as the first direction l li and the third direction I lk ( Larger than Y axis + direction or Y axis-direction)
  • the direction is smaller than 180 degrees (Z axis-direction) with respect to Z axis + direction.
  • the second direction and the fourth direction in each of the coils from the first coil 16 to the fourth coil 19 are also different directions, and are 90% with respect to the Z axis + direction which is substantially the same direction as the first direction and the third direction. It is larger than 180 degrees and smaller than 180 degrees.
  • the stacking direction of each of the second side and the fourth side is a direction larger than 90 degrees and smaller than 180 degrees with respect to the one set of stacking directions
  • the second direction 16j and the fourth direction 161 are 90 degrees with respect to the Z axis + direction, which is substantially the same as the first direction 16i and the third direction 16k (Y axis + This is equivalent to a direction smaller than 180 degrees (one direction of the Z axis) relative to the Z axis + direction that is larger than the direction or one direction of the Y axis.
  • FIG. 13 is a perspective view of a W-phase coil unit according to Embodiment 3 of the present invention.
  • FIG. 14 is a perspective view of a W-phase coil unit according to Embodiment 3 of the present invention.
  • (a) to (d) respectively show a front view, a top view, a right side view, and a left side view of the W-phase coil unit shown in FIG.
  • FIG. 15 is a perspective view intentionally separated for the sake of explanation of the interval between the coils of the W-phase coil unit according to the third embodiment that is useful for the present invention.
  • 16 (a) and 16 (b) show a top view and a left side view of the W-phase coil unit shown in FIG.
  • FIG. 49 is a perspective view of the first coil of the W-phase coil unit according to the third embodiment.
  • FIG. 17 is a perspective view intentionally separated for the sake of explanation of the interval of 1 to 3 turns of the first coil of the W-phase coil unit according to the third embodiment that is useful for the present invention.
  • FIGS. 18 (a), (b), and (c) show a front view, a top view, and a left side view of the U-phase coil unit shown in FIG. 17, respectively.
  • the W-phase coil unit 21 has the same basic configuration as the U-phase coil unit 1 described above. The stacking direction of the flat wire 2 on the second side and the fourth side is different from that of the first embodiment. Therefore, this difference will be mainly described.
  • symbol which shows each part in the W-phase coil unit 21 shall add 20 to the code
  • the description of the reference numerals of the W-phase coil unit 21 is omitted for the parts that are basically common.
  • the first direction 26i and the third direction 26k of the first coil 26 of the W-phase coil unit 21 are the first coil of the U-phase coil unit 1.
  • the first direction 6 i of 6 and the third direction 6 k are in the same direction.
  • the second direction 26j is substantially the Y axis + direction
  • the fourth direction 261 is substantially the Y axis-direction. That is, the second direction 26j and the fourth direction 261 of the first coil 26 of the W-phase coil unit 21 are opposite directions, with respect to the Z axis + direction, which is substantially the same direction as the first direction 26i and the third direction 26k.
  • the first to fourth directions in the first to fourth coils are the same direction.
  • the second direction 21j is the same as the second direction 26j of the first coil 26, and is substantially the Y axis + direction.
  • the fourth direction 211 is the same as the fourth direction 261 of the first coil 26 and is substantially the Y-axis direction.
  • the second direction 21j and the fourth direction 211 of the W-phase coil unit 21 are opposite directions, and perpendicular to the Z axis + direction, which is substantially the same direction as the first direction 21i and the third direction 21k. It is in the direction.
  • the second direction and the fourth direction are substantially opposite directions, and in the Z axis + direction, which is substantially the same direction as the first direction and the third direction. On the other hand, it is perpendicular.
  • the respective laminating directions on the second side and the fourth side are substantially opposite to each other, and substantially perpendicular to the one set of laminating directions.
  • ⁇ Is, for example, the second direction 26j and the fourth direction 261 of the third embodiment are substantially opposite directions, and the Z axis + which is substantially the same direction as the first direction 26i and the third direction 26k + Equivalent to being perpendicular to the direction! /.
  • the respective stacking directions in the other set of the second side and the fourth side are different from the set of stacking directions
  • the second direction 16j is different from the first direction 16i and the third direction 16k, which are substantially the same as in the second embodiment, and the fourth direction 161 is also a different direction.
  • the second direction 16j and the fourth direction 161 are forces shifted by ⁇ degrees with respect to the Z-axis direction.
  • the angle with respect to one direction may differ.
  • the second direction 16j may be the same direction as the second direction 6j of the U-phase coil unit 1
  • the fourth direction 161 may be the same direction as the fourth direction of the W-phase coil unit 21.
  • the first-side portion 21a and the second-side portion are not the bent portions 21e, 21f, 21g, and 21h of the W-phase coil unit 21.
  • the flat wire 2 is twisted in the middle of 21b, the third side portion 21c, and the fourth side portion 21d, it may be twisted in the bending force portions 21e, 21f, 21g, and 21h.
  • the stator according to the fourth embodiment of the present invention using the U-phase coil unit 1, the V-phase coil unit 11, and the W-phase coil unit 21 will be described below.
  • FIG. 19 (a) is a perspective view of the stator according to the fourth embodiment.
  • FIG. 19B and FIG. 19C are a plan view and a side view of the stator shown in FIG.
  • the stator according to the fourth embodiment includes eight U-phase coil units 1, V-phase coil units 11, W-phase coil units 21, and a stator core 30.
  • FIG. 20 (a) is a top view of the stator core 30.
  • FIG. Figure 20 (b) is an enlarged view of the r part shown in (a).
  • FIG. 20 (c) is a perspective view of the stator core 30.
  • FIG. FIGS. 20 (a) and (c) schematically show each coil unit in order to clarify the positional relationship between the U-phase coil unit 1, the V-phase coil unit 11, and the W-phase coil unit 21. ing.
  • the stator core 30 has a substantially cylindrical shape, and is formed on its inner side so as to protrude toward the center 30a of the cylindrical shape !, It has 48 teeth 31.
  • the stator core 30 has a slot 32 formed between the teeth 31 and having a flange inlet 33 on the center side.
  • ridges 3 la are formed on both sides along the circumferential direction.
  • the U-phase coil unit 1 has a U in the slot 32 so that the Z-axis + direction coincides with the center 30a direction of the stator core 30.
  • the first side portion la and the third side portion lc of the phase coil unit 1 are inserted, and the fourth side portion Id is disposed on the upper surface of the stator core 30.
  • the U-phase coil unit from the eight U-phase coil units 1 arranged in the stator core 30, the U-phase coil unit!
  • the center 30a is viewed from the outer peripheral side of the stator core 30 and the first side la
  • the third side lc will be placed on the right side. The same applies to the V-phase and W-phase coil units.
  • the slot into which the first side la of the U-phase coil unit 1 is inserted is the slot 32u, and the slot into which the third side lc is inserted.
  • the slot is 32 ⁇ .
  • a slot in which the first side portion 11a of the V-phase coil unit 11 is inserted is 32v
  • a slot in which the third side portion 11c is inserted is 32.
  • the slot where the first side 21a of the W-phase coil unit 21 is inserted is 32w
  • the slot where the third side 21c is inserted is 32W.
  • slots 32u, 32u ', 32 ⁇ , 32 ⁇ ', 32w, 32w ', and 32u are arranged in this order in the clockwise direction, and this arrangement is repeated eight times. Therefore, the slot next to the slot 32u with respect to the clockwise direction is the slot 32, and the fifth slot force S slot 32u 'with respect to the counterclockwise direction.
  • one U-phase coil unit 1 is inserted into slots 32u and 32 ⁇ having four slots 32 therebetween.
  • the V-phase coil unit 11 and the W-phase coil unit 21 are also inserted and arranged.
  • the fourth side ld of the U-phase coil unit 1, the fourth side l ld of the V-phase coil unit 11, the second side ld of the W-phase coil unit 21 Each coil unit is inserted into the slot so as to be arranged from the outer periphery of the stator core 30 toward the center in the order of the four sides 21d.
  • the U-phase coil unit 1, V-phase coil unit 11, and The second side and the fourth side of the W-phase coil unit 21 are substantially curved along the outer periphery of the stator.
  • the angle ⁇ with respect to the Z axis + direction of the directions lk, l lk, 21 k is determined by the angle determined by the number of slots 32.
  • the center angle of the stator core 30 between the slot 32u and the slot 32u ' is twice the ⁇ degree (the first direction li and the third direction lk Angle).
  • the center angle of the two slots into which each coil unit is inserted is about 37.5 degrees, and ⁇ is About 18.25 degrees.
  • the ⁇ degree is determined by the shape of the stator core.
  • the winding start portion is connected to the first side portion, and the winding end portion is connected to the fourth side portion, so that the first direction and the third direction
  • the number of layers of the rectangular wire 2 is the same.
  • the same number of layers that is, the number of layers, and when inserted into the stator core 30, the thickness of the coil unit in the Z-axis direction is also constant.
  • U, V, and W phase coil units are more preferred to have approximately the same wire length and resistance (impedance)! /.
  • the second side lb and the fourth side Id of the U-phase coil unit 1, the second side l ib and the fourth side l id of the V-phase coil unit 11, and the second side of the W-phase coil unit 21 As long as the angle is such that the parts 21b and 21d do not interfere with the stator core 30 !.
  • the second direction lj and the fourth direction 11 of the U-phase coil unit 1 are 0 degrees that are angles with respect to one direction of the Z axis, and the force that is narrower than the central space 5.
  • the number of coil units, the number of teeth, the number of slots, etc. arranged in the stator core are appropriately It can also be changed, or it can be a two-phase coil unit in which two types of coil units are arranged, for example, a three-phase coil unit with U-phase, V-phase, and W-phase forces.
  • U-phase coil unit 1, V-phase coil unit 11, and W-phase coil unit 21 are used as the coil unit for the stator, but they may be used as the coil unit for the rotor. good.
  • stator core 30 of the fourth embodiment has a rotor disposed therein, but the rotor may be a stator for the outer rotor with the rotor installed outside. 1, V-phase coil unit 11, and W-phase coil unit
  • the flat wire 2 may have a thickness 2t and a width 2w continuously changing in the length direction.
  • the flat wire 2 has a wider width at the beginning of the winding than at the end of the winding.
  • the first side portion and the third side portion of each coil unit have a shape in which the width 2w is narrowed in the stacking direction.
  • the cross section of the first side la and the third side lc in the direction perpendicular to the Y-axis has a trapezoidal shape.
  • the shape of the slit slot 32 is a trapezoidal shape whose width increases from the center toward the outer periphery, so that the conductor space factor can be improved.
  • the rotor coil unit and the stator coil unit for the outer rotor it is preferable to use a rectangular wire whose width is narrower at the beginning of winding than at the end of rolling.
  • the cross-sectional area is the same at any location in the length direction.
  • stator slot 32 in the fourth embodiment may be formed so as to have a predetermined angle with a force formed parallel to the central axis of the cylindrical stator core 30. By doing in this way, it becomes possible to prevent coking more.
  • both the U-phase coil unit 1, the V-phase coil unit 11, and the W-phase coil unit 21 have the first and third sides inclined with respect to the Y-axis direction. When viewed, it becomes a substantially parallelogram.
  • the U-phase coil unit manufacturing jig according to the fifth embodiment which is an example of the coil unit manufacturing jig of the invention related to the present invention, will be described below, and the coil manufacturing jig of the invention related to the present invention will be described. An example will be described at the same time.
  • the U-phase coil unit manufacturing jig of the fifth embodiment is a jig for manufacturing the U-phase coil unit 1 of the first embodiment.
  • FIG. 21 (a) is a perspective view of a U-phase coil unit manufacturing jig according to the fifth embodiment.
  • FIG. 21 (b) is a diagram in which the U-phase coil unit manufactured in (a) is added by a two-dot chain line. 22 (a), (b), and (c) show a front view, a top view, and a right side view of the U-phase coil unit manufacturing jig shown in FIG. 21 (a).
  • the X, Y and Z axes indicate the direction.
  • the U-phase coil unit manufacturing jig according to the fifth embodiment has the Z-axis + direction and the Z-axis one direction as viewed from the Y-axis + direction side.
  • the jig body 40 having a substantially isosceles trapezoidal shape in which two sides are parallel and the direction force of the side located in the Z axis + direction is smaller than the side located in one direction of the 3 ⁇ 4 axis. I have.
  • the jig body 40 has two sides parallel to the Z-axis + direction and the Z-axis one direction when viewed from the X-axis + direction side.
  • the side located in the + direction of the axis is larger than the side located in one direction of the Z axis, and is substantially an isosceles trapezoid.
  • the first groove 40a is formed in the X-axis one-side surface portion and the X-axis + direction-side surface portion of the jig body 40 as viewed from the Y-axis + direction side.
  • a third groove 40c is provided.
  • the jig body 40 has a side wall 41 provided on the X axis direction side of the first groove 40a to form the first groove 40a, and an X of the third groove 40c to form the third groove 40c.
  • a side wall 42 provided on the axis + direction side. The side wall 41 and the side wall 42 are configured to be detachable from the jig body 40.
  • the first groove 40a is a groove for forming the first side portion la of the U-phase coil unit 1
  • the third groove 40c is a groove for forming the third side portion lc.
  • the widths of the first groove 40a and the third groove 40c substantially coincide with the width 2w of the flat wire 2.
  • the first bottom surface direction 40i is It is tilted in the direction of ⁇ degrees X-axis with respect to one direction of the Z axis, and the third bottom surface direction 40k is ⁇ degrees X-axis + Tilt in the direction. That is, the first bottom surface direction 40i is the opposite direction to the first direction 1i of the U-phase coil unit 1, and the third bottom surface direction 40k is the opposite direction to the third direction lk.
  • the jig body 40 has a Y-axis end and a Y-axis end in the Y-axis + direction when viewed from the X-axis + direction side.
  • a second groove 40b and a fourth groove 40d are provided.
  • the jig body 40 has a side wall 43 provided on the Y-axis direction side of the second groove 40b to form the second groove 40b, and a fourth groove 40d to form the fourth groove 40d.
  • a side wall 44 provided on the Y axis + direction side.
  • the side wall 43 and the side wall 44 are configured to be detachable from the jig body 40.
  • the second groove 40b is a groove for forming the second side part lb of the U-phase coil unit 1
  • the fourth groove 40d is a groove for forming the fourth side part Id.
  • the second side lb has four sides lb, lb, lb, lb force
  • the second groove 40b has a width capable of forming these four sides, and is substantially four times as wide as the width 2w of the wire 2. Become.
  • the second groove 40b corresponds to the four side portions, and the groove bottom portions 40b, 40b, 40b, which form steps in the width direction,
  • the direction of urging is the same.
  • the direction facing the bottom surface is the second bottom surface direction 40j.
  • this has Y-axis + direction [U-groove bottom groove 40d, 40d, 40d, 40d,
  • the direction toward the bottom surface is the fourth bottom surface direction 401.
  • the second bottom surface direction 40j is inclined ⁇ degrees in one direction of the Y axis with respect to the Z axis + direction, and the fourth bottom surface direction
  • the direction 401 is inclined ⁇ degrees in the Y axis + direction with respect to the Z axis + direction. That is, the second bottom surface
  • the direction 40j is opposite to the second direction lj described in FIG. 1, and the fourth bottom surface direction 401 is opposite to the fourth direction 11.
  • the first groove 40a, the second groove 40b, and the third groove are counterclockwise so as to form a substantially rectangular shape when viewed from one side of the Z axis.
  • 40c and a fourth groove 40d are provided. Both ends of each of these grooves are open, the open part between the first groove 40a and the second groove 40b is 40e, the open part between the second groove 40b and the third groove 40c is 40f, The open portion between the third groove 40c and the fourth groove 40d is marked with 40g, and the open portion between the fourth groove 40d and the first groove 40a is marked with 40h.
  • FIG. 23 is an exploded view of FIG. 21 (a). As shown in FIG.
  • the jig body 40 includes a first base material 45 and a second base material 46.
  • This first base material 45 has a quadrangular prism shape, and is an isosceles trapezoidal shape 2 having two parallel sides arranged perpendicular to the Z axis when viewed from the Y axis + direction and the Y axis one direction side. It has a surface. These two surfaces are isosceles trapezoidal surfaces shorter than the side on the Z axis + direction side of the two sides parallel to each other and the side on the one direction side of the axis.
  • the first base material 45 includes two surfaces of an isosceles trapezoidal shape having two parallel sides arranged perpendicular to the Z axis when viewed from the X axis + direction and the X axis one direction side. ing. These two surfaces are isosceles trapezoidal surfaces in which the side on the Z axis + direction side is longer than the side on the Z axis one direction side among the two sides parallel to each other.
  • a second base material 46 is detachably connected to the first base material 45 on one side of the Z axis.
  • the convex part 46R extends along the side surface of the first base material 45 in the X-axis + direction. Is provided.
  • the convex portion 46R is sandwiched between the side wall 42 and the side surface on the X axis + side of the first base material 45, and the tip of the convex portion 46R forms the bottom surface of the third groove 40c.
  • the second base material 46 has a convex portion 46L at the end in the X-axis direction, and the tip of the convex portion 46L forms the bottom surface of the first groove 40a.
  • first base material 45 and the side wall 43 four plates 47a, 47b, 47c, and 47d are arranged in this order in one Y-axis direction.
  • Each of these four plates and the side wall 43 has two through holes and is positioned by two support pins 49.
  • the first base material 45 and ⁇ J wall 44 it is arranged in four plates ⁇ 48a, 48b, 48c, 48d force ⁇ jets with the force in the Y axis + direction. Is positioned by.
  • the eight plates are fan-shaped and have a curved portion oc bulging on one side in the Z-axis.
  • the curved portion ⁇ forms the curvature of the second side portion lb and the fourth side portion Id along the outer periphery of the stator core 30 described in the fourth embodiment.
  • the curved portion a of the plate 47a corresponds to the groove bottom portion 40b, which in turn hits the curved bottom force 40b, 40b, 40b of 47b, 47c, 47d.
  • the side plates 47a, 47b, 47c, 47d have a smaller length in one direction of the Z-axis according to the direction of the Y-axis, and the Y-axis + direction side plate a 48a, 48b, 48c, 48d + follow direction The length in one direction of the Z axis is getting smaller. As a result, the step force S described in FIG. 22 (c) is formed.
  • the first base material 45 and the second base material 46, and the first groove 40a and the third base material formed by the side wall 42 and the side wall 41 are used.
  • the first base material 45 and the second base material 46, and the second groove 40b and the fourth base material formed by the side wall 43 and the side wall 44 are used.
  • the depth of the groove 40d is larger than the product of the number of layers (9 turns) of the first to fourth coils of the U-phase coil unit 1 and the thickness 2t.
  • the depth of the second groove 40b and the fourth groove 40d is larger than the product of the maximum number of turns and the thickness 2t.
  • the first bottom surface direction 40i and the third bottom surface direction 40k are substantially the same direction, and the direction is the Z axis.
  • the second bottom surface direction 40j and the fourth bottom surface direction 401 are substantially the same direction, but the direction is the Z-axis + direction opposite to the Z-axis one direction.
  • the direction toward the bottom surface of each of the second groove and the fourth groove is substantially the same direction, and the bottom surfaces of the first groove and the third groove" ⁇
  • Substantially opposite to the direction toward '' is, for example, the Z-axis + direction in which the second bottom surface direction 40j and the fourth bottom surface direction 401 of the fifth embodiment are substantially the same direction, This corresponds to the fact that the first bottom surface direction 40i and the third bottom surface direction 40k are substantially in the same direction as the Z axis.
  • the width of each of the second groove and the fourth groove is a length that allows the plurality of wires to be arranged in parallel in the width direction.
  • implementation This corresponds to the fact that four of the second grooves 40b and the fourth grooves 40d of the form 5 can be arranged in the width 2w direction of the flat wire 2.
  • Embodiment 6 describes a method for manufacturing a U-phase coil unit according to Embodiment 6, which is an example of a method for manufacturing a coil unit according to the present invention.
  • An example of a method for manufacturing a coil according to the present invention is also described below. Is also explained.
  • FIG. 24 is a perspective view of a state in which a wire is wound around the U-phase coil unit manufacturing jig described in the fifth embodiment to explain the manufacturing method of the U-phase coil unit in the sixth embodiment.
  • FIG. Here, in the U-phase coil unit manufacturing jig shown in FIG. 24, the plates 47b, 47c, 47d, 48b, 48c, and 48d explained in the exploded view of FIG. 23 are removed. Only the plate 48 a is disposed between the first base material 45 and the side wall 44. Similarly, only the plate 47 a is disposed between the first base material 45 and the side wall 43. Further, the surface 2a shown in FIG. 5 is indicated by hatching.
  • the flat wire 2 is arranged in the first groove 40a of the U-phase coil tube manufacturing jig so that the surface 2b faces the bottom surface of the first groove 40a.
  • the flat wire 2 is twisted by 180 degrees in the clockwise direction when viewed from the extending direction with the length direction at the opening 40e, and the surface 2b faces the groove bottom 40b. Is disposed in the second groove 40b.
  • the flat wire 2 is bent so that the surface 2b faces the bottom surface while being twisted substantially 180 degrees clockwise when viewed from the extension direction with the length direction at the opening 40f. Located in 3 grooves 40c.
  • the flat wire 2 is twisted by 180 degrees in the clockwise direction when viewed from the extension direction, with the length direction at the open portion 40g, and the surface 2b faces the groove bottom portion 40d. In the fourth groove 40d.
  • the first turn of the first coil 6 of the U-phase coil unit 1 is formed. Further, the above operation corresponds to an example of the scouring process of the invention related to the present invention.
  • the flat wire 2 is twisted substantially 180 degrees clockwise when viewed from the extension direction with the length direction at the open portion 40h, and its surface 2b is already in the first groove 40a.
  • Flat It is arranged so as to face the surface 2a of the square line 2.
  • the flat wire 2 is twisted substantially 180 degrees clockwise with the length direction at the open portion 40e as viewed from the extension direction, but the surface 2b has already been in the second groove 40b. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the flat wire 2 is arranged so as to face the surface 2a of the flat wire 2 already arranged.
  • the first coil 6 is formed by performing this operation up to the ninth turn.
  • the operation of forming the first coil 6 corresponds to an example of the coil manufacturing method of the invention related to the present invention.
  • FIG. 25 shows a second turn by winding a rectangular wire around the U-phase coil unit manufacturing jig described in the fifth embodiment to explain the manufacturing method of the U-phase coil unit according to the sixth embodiment. It is a perspective view at the time of manufacturing.
  • the plate 47b and the plate 48b are attached to the U-phase coil unit manufacturing jig.
  • FIG. 26 is an enlarged cross-sectional view of the second groove 40b. As shown in this figure, the spacer 35 is provided between the groove bottom portions 40b and 40b.
  • the spacer 35 has a plate shape arranged perpendicular to the groove bottom surface and is fixed by being sandwiched between the plates 47a and 47b constituting the groove bottom portions 40b and 40b.
  • a spacer 35 is disposed between the groove bottom portions 40d and 40d.
  • the flat wire 2 arranged in the second groove 40b is pressed by the wire pressing jig 36 to fix the shape.
  • the wire holding jig 36 is more preferably used when arranging the wire in each groove because the shape of the wire can be fixed.
  • the flat wire 2 is already twisted 180 degrees clockwise when viewed from the extension direction with the length direction at the open portion 40h, and the surface 2b is already in the first position. 1 is arranged in the groove 40a! And is arranged so as to face the surface 2a of the rectangular wire 2.
  • the flat wire 2 is twisted by 180 degrees in the clockwise direction when viewed from the extending direction with the length direction at the opening 40e so that the surface 2b faces the groove bottom 40b. 2nd groove 40
  • the flat wire 2 is twisted substantially 180 degrees clockwise as viewed from the extension direction with the length direction at the open portion 40f, and its surface 2b is already in the third groove 40c.
  • Flat It is arranged so as to face the surface 2a of the square line 2.
  • the flat wire 2 is twisted by 180 degrees in the clockwise direction when viewed from the extension direction, with the length direction at the open portion 40g, and its surface 2b faces the groove bottom portion 40d. 4th groove 40
  • the flat wire 2 is twisted by 180 degrees in the clockwise direction when viewed from the extension direction with the length direction at the open portion 40h, and its surface 2b is already in the first groove 40a. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the flat wire 2 is twisted substantially 180 degrees clockwise around the length direction at the open portion 40e and viewed from the extension direction, but its surface 2b is already in the second groove 40b.
  • the groove bottom 40b On the groove bottom 40b
  • the flat wire 2 is twisted by 180 degrees in the clockwise direction when viewed from the extension direction, with the length direction at the opening 40f, and its surface 2b is already in the third groove 40c. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the flat wire 2 is twisted substantially 180 degrees clockwise with the length direction at the open portion 40g and viewed from the extension direction, but the surface 2b is already in the fourth groove 40d. On the groove bottom 40d
  • the second groove 40b has the fourth coil 4 on the groove bottom 40b.
  • the flat wire 2 is disposed on the groove bottom 40d. And do this for 9 turns
  • Spacer 35 is arranged between Ob and between the groove bottoms 40d and 40d.
  • the groove bottoms 40d and 40d In the second groove 40b, the groove bottom
  • the rectangular wire 2 is disposed on the groove bottom portion 40d in the fourth groove 40d.
  • Spacer 35 is arranged between Ob and between the groove bottoms 40d and 40d.
  • the groove bottoms 40d and 40d In the second groove 40b, the groove bottom
  • the rectangular wire 2 is disposed on the groove bottom part 40d in the fourth groove 40d.
  • FIG. 6 is a front view, a top view, and a right side view of the u-phase coil unit manufacturing jig.
  • the first base material 45, the second base material 46, the plates 47, 48, the side walls 41, 42, etc. are removable, so that each component By removing from the first base material 45, the manufactured U-phase coil unit 1 can be removed from the U-phase coil unit manufacturing jig.
  • the rectangular wire 2 forming the second coil 7 is arranged on the groove bottom 40d. Is called. Second like this
  • side surfaces of the side portion 6b and the fourth side portion 6d are the invention related to the present invention, “all or a part of one side wall of the second groove and the fourth groove is one before. Corresponds to an example of the side surfaces of the second side and the fourth side of the coil.
  • the second side and the second side for the next coil are moved by moving the side wall.
  • the step of securing Z or the width of the fourth side means, for example, adding the plates 47b and 48b after the manufacture of the first coil 6 of the above-described sixth embodiment to obtain the groove bottom portion for the second coil 7. This corresponds to the step of securing 40b and groove bottom 40d.
  • the step of securing the fourth groove refers to, for example, adding the spacer 35 and the plates 47b and 48b after the production of the first coil 6 in the sixth embodiment, thereby increasing the width of the spacer 35 and the second width. This corresponds to the step of securing the groove bottom 40b and the groove bottom 40d for the coil 7.
  • the force of arranging 35 Spacer 35 need not be arranged.
  • the side surface on the Y-axis side of the second side portion 6b of the first coil 6 is set as one side wall, the other side wall is set as the side wall 43, and the rectangular wire 2 forming the second coil 7 is disposed on the groove bottom portion 40b. Is done.
  • the rectangular wire 2 is first arranged in the first groove 40a, and finally the production process of the U-phase coil shoe 1 is completed by the arrangement in the fourth groove 40d.
  • the arrangement in the third groove 40c may be terminated without the arrangement in the fourth groove 40d.
  • the V-phase coil unit manufacturing jig according to Embodiment 7 which is an example of the coil unit manufacturing jig of the invention related to the present invention, will be described, and the coil manufacturing jig of the invention related to the present invention will be described. An example will be described at the same time.
  • the V-phase coil unit manufacturing jig of the seventh embodiment is a jig for manufacturing the V-phase coil unit 11 of the second embodiment.
  • FIG. 28 (a) is a perspective view of the V-phase coil unit manufacturing jig of the seventh embodiment.
  • FIG. 28 (b) is a diagram in which the V-phase coil unit manufactured in the V-phase coil unit manufacturing jig shown in (a) is added by a two-dot chain line.
  • Figures 29 (a), (b), and (c) are V, U, and U phase coil unit manufacturing jigs shown in Figure 28 (a).
  • a top view seen from the + side and a left side view seen from the X-axis direction side are shown.
  • FIG. 29 (c) the V-phase coil unit 11 manufactured in the direction of the jig is drawn so as to correspond to FIG. 8 (d).
  • Fig. 30 (a) is a perspective view of the V-phase coil unit manufacturing jig, and Fig. 30 (b) is shown in Fig. 30 (a). It is an exploded view of the V-phase coil unit manufacturing jig shown.
  • the V-phase coil unit manufacturing jig of the seventh embodiment has the same basic configuration as the U-phase coil boot manufacturing jig of the fifth embodiment, but the second groove and the fourth groove.
  • the second bottom surface direction and the fourth bottom surface direction are different from those of the U-phase coil unit manufacturing jig of the fifth embodiment. Therefore, this difference will be mainly described.
  • the reference numerals indicating the respective parts in the V-phase coil unit manufacturing jig are those obtained by adding 10 to the reference numerals indicating the respective parts of the U-phase coil unit manufacturing jig.
  • the description of the reference numerals of the V-phase coil unit manufacturing jig is omitted for parts that are basically common.
  • the second bottom surface direction 50j in the V-phase coil unit manufacturing jig according to the seventh embodiment that is relevant to the invention related to the present invention is ⁇ degrees from the Y-axis direction relative to the Z-axis direction. 4th bottom surface
  • the direction 501 is ⁇ degrees from the Y axis + direction with respect to one direction of the Z axis.
  • This 0 is a form of implementation.
  • the direction toward the bottom surface of each of the second groove and the fourth groove is 90 degrees with respect to the bottom surface direction of the first groove and the third groove.
  • the second bottom surface direction 50j and the fourth bottom surface direction 501 in the seventh embodiment are substantially the same as the first bottom surface direction 50i and the third bottom surface direction 50k.
  • the direction is larger than 90 degrees (Y-axis + direction or Y-axis one direction) with respect to one direction of the Z-axis and smaller than 180 degrees (Z-axis direction) with respect to the Z-axis + direction. It corresponds to that.
  • Embodiment 8 describes a method for manufacturing a V-phase coil unit according to Embodiment 8, which is an example of a method for manufacturing a coil unit according to the present invention.
  • An example of a method for manufacturing a coil according to the present invention is also described below. Is also explained.
  • the manufacturing method of the V-phase coil unit in the eighth embodiment is the same as the manufacturing method of the U-phase coil unit in the sixth embodiment, and therefore only the manufacturing process of the first coil 16 is performed. The explanation below Do.
  • FIG. 31 is a perspective view of a state in which a wire is wound around the V-phase coil unit manufacturing jig described in the seventh embodiment to explain the method for manufacturing the V-phase coil unit according to the eighth embodiment.
  • FIG. 31 is a perspective view of a state in which a wire is wound around the V-phase coil unit manufacturing jig described in the seventh embodiment to explain the method for manufacturing the V-phase coil unit according to the eighth embodiment.
  • the flat wire 2 is arranged in the first groove 50a of the V-phase coil tube manufacturing jig so that the surface 2b faces the bottom surface of the first groove 50a (see FIGS. 29 and 31). ).
  • the flat wire 2 is twisted clockwise with the length direction at the open portion 50e as viewed from the extension direction, and the second groove so that the surface 2b faces the groove bottom portion 50b. Placed in 50b
  • the flat wire 2 is twisted clockwise in the open direction at the opening 50f and viewed in the extension direction, and the surface 2b faces the bottom surface so that the surface 2b faces the bottom surface 50c. Be placed.
  • the flat wire 2 is twisted clockwise with the length direction at the open portion 50g as viewed from the extension direction, and the surface 2b faces the groove bottom portion 50d so that the surface 2b faces the groove bottom portion 50d. Placed in 50d
  • the angle when clockwise twisted is greater than 90 degrees and smaller than 180 degrees.
  • FIGS. 32 (a), (b), and (c) the manufactured V-phase coil unit is indicated by a two-dot chain line. A left side view is shown.
  • FIG. 33 (a) is a perspective view of a W-phase coil unit manufacturing jig according to the ninth embodiment, which is useful for the invention related to the present invention.
  • FIG. 33 (b) is a diagram obtained by adding the W-phase coil unit manufactured in (a) with a two-dot chain line. Fig.
  • FIG. 34 (a) is a rear view of the W-phase coil manufacturing jig shown in Fig. 33 (a) as seen from the Z axis + direction, and (b) is seen from the Y axis + direction.
  • (C) is a left side view of the X-axis unidirectional force.
  • the W-phase coil unit manufacturing jig of the ninth embodiment has four shapes in which the surface shapes on the Y axis + side and the Y axis side are substantially trapezoidal.
  • a jig body 60 having a prismatic shape is provided. This trapezoidal shape is a trapezoidal shape in which two sides in the axial direction are parallel.
  • the first groove 60a is formed on the side surface of the jig body 60 in the X-axis-side direction and on the side surface of the X-axis + direction.
  • the third groove 60c is formed in addition, the jig body 60 has a side wall 61 provided on the X-axis direction side of the first groove 60a to form the first groove 60a, and an X of the third groove 60c to form the third groove 60c.
  • a side wall 62 provided on the axis + direction side. The side wall 61 and the side wall 62 are configured to be detachable from the jig body 60.
  • the first groove 60a is a groove for forming the first side part 21a of the W-phase coil unit 21, and the third groove 60c is a groove for forming the third side part 21c.
  • the widths of the first groove 60a and the third groove 60c substantially coincide with the width 2w of the flat wire 2. If the direction toward the bottom surface of the first groove 60a is the first bottom surface direction 60i, and the direction toward the bottom surface of the third groove 60c is the third bottom surface direction 60k, the first bottom surface direction 60i is the Z-axis direction.
  • the third bottom surface direction 60k is inclined ⁇ degrees X-axis + direction with respect to one Z-axis direction. That is, the direction is opposite to the first direction 21i of the W-phase coil unit 1, and the third bottom surface direction 60k is opposite to the third direction 21k.
  • FIG. 35 (a) is a perspective view of the W-phase coil unit manufacturing jig according to the ninth embodiment.
  • the jig body 60 includes a first base material 65 and a second base material 66.
  • the first base 65 has a quadrangular prism shape, and has two surfaces of an isosceles trapezoidal shape having two sides parallel to each other and perpendicular to the Z axis when viewed from the Y axis + direction and the Y axis one direction side. I have. These two surfaces are surfaces with an isosceles trapezoidal shape in which the side on the Z-axis + side is shorter than the side on the Z-axis-side among the two parallel sides.
  • the second base 66 has the same shape, but the end in the X-axis + direction of the portion in contact with the first base 65 is along the side surface of the first base 65 in the X-axis + direction.
  • Convex part 66R is provided on.
  • the convex portion 66R is sandwiched between the side wall 61 and the side surface on the X axis + side of the first base material 65, and the tip of the convex portion 66R forms the bottom surface of the third groove 60c.
  • the second base material 66 has a convex portion 66L at the end in the X-axis direction, and the tip of the convex portion 66L forms the bottom surface of the first groove 60a.
  • FIGS. 36 (a), (b), (c), and (d) are views of the W-phase coil unit manufacturing jig of the ninth embodiment as viewed from the + Y-axis direction.
  • the fourth groove forming first member 67a is arranged on the Z axis + side
  • the fourth groove forming second member 68 is arranged on the Z axis-side.
  • a fourth groove first portion 60d is formed.
  • the hatched portion substantially along the X axis is the fourth groove first portion 60d, and shows a part of the fourth groove 60d in which the flat wire 2 is disposed.
  • the second groove forming second member has a curved portion ⁇ on the fourth groove first portion 60d side.
  • the fourth side portion 26d of the first coil 26 shown in FIG. 15 is formed by the fourth groove first portion 60d. Further, the curved portion
  • the jig body 60 has a similar shape instead of the fourth groove forming first member 67a shown in Fig. 36 (a).
  • a fourth groove forming first member 67b is disposed.
  • the fourth groove forming first member 67b is reduced in the Z-axis-direction and the X-axis + -direction as compared with 67a.
  • a spacer 69a is disposed between the fourth groove forming first member 67b and the fourth groove forming second member 68.
  • the spacer 69a is disposed on the Z-axis + side of the fourth groove first portion 60d, and the spacer 69a is a fourth groove with the Z-axis + side of the spacer 69a and the fourth groove forming first member 67b as side walls.
  • the fourth groove second portion 60d allows the second coil 27 shown in FIG.
  • the spacer 69a also has a curved portion ⁇ on the Z axis + side, like the fourth groove forming second member 68.
  • the jig body 60 is similar to the fourth groove forming first member 67b shown in FIG. 36 (b).
  • the fourth groove forming first member 67c is arranged Yes.
  • a spacer 69b is further disposed between the fourth groove forming first member 67c and the spacer 69a.
  • the spacer 69b is connected to the X axis direction + side of the spacer 69b and the fourth groove forming first member 67c.
  • a fourth groove third portion 60d is formed as a side wall. With this fourth groove third part 60d, it is shown in Fig. 15.
  • the fourth side portion 28d of the third coil 28 is formed.
  • the jig main body 60 has a fourth groove formation first that is similar to the fourth groove formation first member 67c shown in (c).
  • a member 67d is arranged.
  • a spacer 69c is further disposed between the fourth groove forming first member 67d and the spacer 69b.
  • the spacer 69c has an X-axis direction plus side and a fourth groove forming first member 67d.
  • the fourth groove fourth portion 60d is formed.
  • the fourth coil shown in FIG. 15 is formed by the fourth groove fourth portion 60d.
  • Both the spacers 69b and 69c have a curved portion j8 on the X axis + side.
  • FIG. 35 (b) shows an exploded view of the jig body 60 in the state shown in FIG. 36 (d).
  • spacer fixing jig 70 installed on the Y axis + side of the fourth groove forming second member 68 shown in FIG. 35 (b) is illustrated in FIG. Is omitted.
  • the spacer fixing jig 70 is fixed so as to be movable in the Z-axis direction.
  • FIGS. 37 (a) and 37 (b) are views of the W-phase coil unit manufacturing jig for explaining the spacer fixing jig 70 as viewed from the + direction of the Y axis.
  • FIG. 37 (a) is the same as the state of FIG. 36 (a), and only the fourth groove first portion 60d is formed. At this time, the spacer fixing jig 70 is retracted in the Z-axis direction.
  • FIG. 37 (b) is the same as the state of FIG. 36 (b), and the fourth groove first part 60d and the fourth groove second part 60d.
  • the spacer fixing jig 70 moves in the Z-axis + direction and fixes the spacer 69a by pressing the force in the Y-axis + direction.
  • the spacer fixing jig 70 is movable in the + direction of the Z axis so as to hold the spacers 69b and 69c.
  • the second groove-forming first member 71b is formed on the Y-axis direction-side in the same manner as the Y-axis direction + side (fourth groove side) of the jig body 60.
  • the second groove forming second member 72, the spacers 73a, 73b, 73c, and the spacer fixing jig 74 are provided.
  • the W-phase coil manufacturing jig has four types of second groove forming first members 71a and 71b that can be attached to and detached from the jig body 60. 71c, 71d.
  • the second bottom surface direction 60j which is the bottom surface direction of the second groove 60b, is the Y-axis.
  • the fourth bottom surface direction 601 which is the + direction and is the bottom surface direction of the fourth groove 60d is the Y-axis-direction.
  • both ends of the first groove 60a, the second groove 60b, the third groove 60c, and the fourth groove 60d are open, and the first groove 60a 60e is the opening between the second groove 60b and the second groove 60b.
  • the opening between 60b and the third groove 60c is 60f
  • the opening between the third groove 60c and the fourth groove 60d is 60g
  • the opening between the fourth groove 60d and the first groove 60a is 60h. To do.
  • the depth of second groove 60b and fourth groove 60d in the W-phase coil unit manufacturing jig according to the ninth embodiment is the number of laminated first to fourth coils of U-phase coil unit 1 ( 9 turns) and 2t thicker than the product.
  • the depth of the second groove 60b and the fourth groove 60d is larger than the product of the maximum number of turns and the thickness 2t.
  • the fourth groove forming first member 67a and the fourth groove forming second member 68 described with reference to FIG. 36 (d), the second groove forming first member 71a, and the second groove forming second member 72 are cured.
  • the state force S arranged on the tool body 60 corresponds to an example of the coil manufacturing jig of the invention related to the present invention.
  • the directions toward the bottom surfaces of the second groove and the fourth groove are opposite to each other, and the bottom surfaces of the first groove and the third groove
  • the second bottom surface direction 60j of the ninth embodiment is substantially the Y axis + direction
  • the fourth bottom surface direction 601 is substantially the Y axis ⁇ . This corresponds to the Z-axis-direction in which the first bottom surface direction 60i and the third bottom surface direction 60k are substantially the same direction.
  • the widths of the second groove and the fourth groove are The length that allows the plurality of wire rods to be arranged in parallel in the width direction means, for example, that the second groove 60b and the fourth groove 60d in the ninth embodiment are four in the width 2w direction of the flat wire 2. Equivalent to being arrangeable.
  • Embodiment 10 describes a method for manufacturing a W-phase coil unit according to Embodiment 10, which is an example of a method for manufacturing a coil unit according to the present invention, and an example of a method for manufacturing a coil according to the present invention. Is also explained.
  • Fig. 38 shows a state in which a wire is wound around the W-phase coil unit manufacturing jig described in the ninth embodiment to explain the method for manufacturing the W-phase coil unit according to the tenth embodiment. It is a perspective view.
  • the W-phase coil unit manufacturing jig shown in FIG. 38 includes the fourth groove-forming first member 67a and the fourth groove-forming second member 68 described in FIG. A first member 71a and a second groove forming second member 72 are attached.
  • the spacer fixing jigs 70 and 74 are not attached to the jig main body 60 in FIG. 38, but they may be attached. However, when the spacer fixing jigs 70 and 74 are attached, they are attached by retracting in one direction of the Z axis as shown in FIG. 37 (a).
  • the flat wire 2 is arranged in the fourth groove 60d of the V-phase coil unit manufacturing jig so that the surface 2b faces the bottom surface of the fourth groove first portion 60d.
  • the portion 1S arranged in the fourth groove 60d corresponds to the starting portion 23 shown in FIG. 13 (see FIGS. 34, 37, and 38).
  • the flat wire 2 is twisted by 90 degrees in the clockwise direction when viewed from the extension direction with the length direction at the open portion 60h, and its surface 2b is in contact with the bottom surface of the first groove 60a. It is placed in the first groove 60a so as to face each other.
  • the flat wire 2 is twisted by 90 degrees in the clockwise direction when viewed from the extension direction with the length direction at the open portion 60e, and its surface 2b is the second groove first portion 60b. It is arranged in the second groove 60b so as to face the bottom surface.
  • the flat wire 2 is twisted so that the surface 2b faces the bottom surface while being twisted substantially 90 degrees clockwise when viewed from the extension direction with the length direction at the opening 60f. Located in 3 grooves 60c. [0236] Next, the flat wire 2 is twisted substantially 90 degrees clockwise with the length direction at the open portion 60g as viewed from the extension direction, and its surface 2b is the fourth groove first portion 60d. It is arranged in the fourth groove 60d so as to be opposed to the bottom surface.
  • the flat wire 2 is twisted substantially 90 degrees clockwise around the length direction at the opening 60e and viewed from the extension direction, but its surface 2b is already in the first groove 60a. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the flat wire 2 is twisted substantially 90 degrees clockwise around the length direction at the opening 60e and viewed from the extension direction, but its surface 2b has already been in the second groove 60b. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the rectangular wire 2 is arranged so as to face the surface 2a of the flat wire 2 that has already been arranged.
  • the first coil 26 is formed by performing this operation until the ninth turn.
  • the fourth groove forming first member 67a is replaced with the fourth groove forming first member 67b, and the spacer 69a is disposed. Then, the spacer fixing jig 70 is moved in the Z-axis + direction so as to fix the spacer 69a. This state corresponds to FIG. 37 (b). As shown in Fig. 37 (b), the spacer fixing jig 70 does not cover the fourth groove second portion 60d.
  • the flat wire 2 is twisted substantially 90 degrees clockwise as viewed from the extension direction with the length direction at the open portion 60h, and its surface 2b is already in the first groove 60a. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the flat wire 2 is twisted by 90 degrees in the clockwise direction when viewed from the extension direction with the length direction at the open portion 60e, and its surface 2b is the second groove second portion 60b.
  • the flat wire 2 is twisted substantially 90 degrees clockwise as viewed from the extension direction with the length direction at the opening 60f, and its surface 2b is already in the third groove 60c. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the flat wire 2 is twisted by 90 degrees in the clockwise direction when viewed from the extension direction with the length direction at the open portion 60g, and its surface 2b is the fourth groove second portion 60d.
  • Fig. 39 shows the second coil.
  • FIG. 1 A first figure.
  • the flat wire 2 is twisted substantially 90 degrees clockwise with the length direction at the opening 60h as viewed in the extension direction, and its surface 2b is already in the first groove 60a. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the flat wire 2 is twisted substantially 90 degrees clockwise with the length direction at the opening 60e as viewed from the extension direction, but the surface 2b is already in the second groove 2nd. Part 60b
  • the flat wire 2 is twisted substantially 90 degrees clockwise as viewed from the extension direction with the length direction at the opening 60f, and its surface 2b is already in the third groove 60c. It is arranged so as to face the surface 2a of the arranged rectangular wire 2.
  • the flat wire 2 is twisted substantially 90 degrees clockwise with the length direction at the open portion 60g as viewed in the extension direction, and its surface 2b is already in the second groove 2nd. Placed on section 60d
  • the flat wire 2 is disposed so as to face the surface 2a of the flat wire 2.
  • the second groove 60b has the second groove 60b on the second groove second portion 60b
  • the fourth groove 60d has the fourth groove second portion 6b.
  • a coil 27 is formed.
  • the fourth groove forming first member 67c is attached instead of the fourth groove forming first member 67b, and the fourth groove is formed.
  • a spacer 69b is disposed between the first forming member 67c and the spacer 69a. Then, the spacer fixing jig 70 is moved in the + Z-axis direction, and the spacer 69b is fixed.
  • a fourth groove forming first member 71c is attached instead of the second groove forming first member 71b, and the fourth groove forming first member 71 is attached.
  • Spacer 73b is arranged between c and spacer 73a.
  • the spacer fixing jig 74 is moved in the Z-axis + direction, and the spacer 73b is fixed. Thereafter, the flat wire 2 is disposed in the second groove third portion 60b in the second groove 60b, and in the fourth groove third portion 60d in the fourth groove 60d, and is then disposed in the second coil 60d.
  • a third coil 28 is formed as in FIG.
  • the fourth groove forming first member 67d is attached instead of the fourth groove forming first member 67c, and the fourth groove 29 is formed.
  • a spacer 69c is disposed between the first forming member 67d and the spacer 69b.
  • the spacer fixing jig 70 is moved in the + Z-axis direction, and the spacer 69c is fixed. The same operation is performed on the second groove side.
  • the flat wire 2 is connected to the second groove fourth portion 60b in the second groove 60b and to the fourth groove 60d in the fourth groove 60d.
  • the fourth coil 29 is formed in the fourth part 60d.
  • Figures 40 (a), (b), and (c) are back, top, and left side views of the W-phase coil unit manufacturing jig, which shows the manufactured W-phase coil unit with a two-dot chain line. Indicates.
  • the W-phase coil unit 21 manufactured by removing each component from the first base material 65 can be used as the W-phase coil unit manufacturing jig force clamp. Can be removed.
  • the second groove forming first member 67d, the fourth groove forming first member 71d, the spacer fixing jigs 70, 74, the spacers 69a, b, c, and the spacers 73a, b, c By removing from the first base material 65 and the second base material 66, the manufactured W-phase coil unit 21 can be removed.
  • the width of the flat wire 2 is wider than the thickness, it may not be necessary to reduce the width of the spacer or provide the spacer itself.
  • the configuration can be appropriately changed depending on the wire used.
  • the second groove for the next coil including the width of the spacer and Z or ⁇ Securing the fourth groove '' refers to, for example, adding spacers 69a and 73a after forming the first coil 26 in Embodiment 10, and forming the second groove forming first member 67b and the fourth groove By changing to the first member 71b, the width of the spacer and the second groove second part 60b for the second coil 27
  • the flat wire 2 may be placed in each groove after being twisted at each open portion while being twisted.
  • the embodiment The force capable of producing the stator shown in 4 The stator can also be produced by attaching the manufacturing jigs of Embodiments 5, 7, and 9 to the stator core 30 and directly winding the rectangular wire 2.
  • 41 (a) and 41 (b) are a plan view and a side view of the U-phase coil manufacturing jig attached to the stator core.
  • the locations where the second groove 40b and the fourth groove 40d of the jig body 40 shown in FIG. 22 are formed are arranged on the upper and lower surfaces of the stator core 30. It has become the composition.
  • the first groove 40a of the jig body 40 corresponds to the slot 32u of the stator core 30, and corresponds to the fourth groove 40d force slot 32u ′.
  • the U-phase coil 1 manufactured by the U-phase coil manufacturing jig of this modification is indicated by a dotted line.
  • the first direction and the third direction of the coil and the coil unit are both determined according to the shape of the force stator core 30 having an angle of ⁇ degrees with respect to the Z axis + direction. Therefore, for example, when used as a transformer, the angle with respect to the Z axis + direction may be different.
  • the second side and the fourth side of the coil and the coil unit are substantially curved along the outer periphery of the stator core 30.
  • these coils and the coil unit are used as a transformer, However, it is not necessary to provide this curvature.
  • the wire of the present invention and the wire of the invention related to the present invention are not limited by the shape of the force cross section corresponding to the flat wire 2 described above, but are, for example, a round wire or a square wire. May be.
  • the coil unit described in each of the above embodiments is provided with four coils, and each coil has a force from the first to the 9th turn. You can do it.
  • FIG. 50 is a perspective view of a U-phase coil unit according to Embodiment 11 of the present invention.
  • 51 (a) to 51 (d) respectively show a front view, a top view, a right side view, and a left side view of the U-phase coil unit shown in FIG.
  • the U-phase coil unit 201 of the eleventh embodiment has the same basic configuration as the U-phase coil unit 1 of the first embodiment described above, but is flat at the second side and the fourth side.
  • the stacking direction of line 2 is different from that of the first embodiment.
  • the number of coils constituting the U-phase coil unit, the number of turns of each coil, and the arrangement of the second side portion and the fourth side portion between the coils are different. Therefore, this difference will be mainly described.
  • the reference numerals indicating the respective parts in the U-phase coil unit 201 of the eleventh embodiment are U-phase. It is assumed that 200 is added to the code indicating each part of the coil unit 1, and only the main part is shown.
  • the first direction 201i and the third direction 201k indicate the same direction as the first direction li and the third direction lk of the first embodiment.
  • the second direction 201j is substantially one direction in the Y axis
  • the fourth direction 2011 is Virtually Y axis + direction.
  • the U-phase coil unit 201 of the eleventh embodiment is formed so that the second direction 201j and the fourth direction 2011 are substantially opposite directions, and the W-phase coil of the third embodiment is formed. This is equivalent to a modified version of 21.
  • U-phase coil unit 201 of the eleventh embodiment will be described in comparison with W-phase coil unit 21 of the third embodiment.
  • the U-phase coil unit 201 of the eleventh embodiment is similar to the third embodiment in that the first side 201a and the third side facing each other.
  • a pair of 201c and a pair of second side part 201b and fourth side part 201d facing each other are provided.
  • the U-phase coil unit 201 of the eleventh embodiment is different from the third embodiment in that the first coil 206, the second coil 207, and The third coil 208 is composed of three coils.
  • the number of turns of these three coils is 12 times. That is, the total number of turns of the W-phase coil unit 21 of the third embodiment and the U-phase coil unit 201 of the eleventh embodiment is both 36 times.
  • fourth side portion 201d of U-phase coil unit 201 of the eleventh embodiment is also configured with three side portion 201d, 201d, and 201d forces.
  • 201b also includes three side portions 201b, 201b, and 201b.
  • FIG. 52 is a perspective view of the first coil 206.
  • the first coil 206 has a second side 206b and a fourth side 206d, which correspond to the side 201b and the side 201d (see FIG. 50 (b)), respectively.
  • the first coil 206 has a first side 206a and a third side 206c, and constitutes a part of the side 201a and the side 201c, respectively.
  • the first direction 206i, the second direction 206j, the third direction 206k, and the fourth direction 2061 of the first coil 206 are respectively the first direction 201i, the second direction 201j of the U-phase coil unit 201, 3rd Direction 201k and the fourth direction 2011 are substantially the same.
  • the U-phase coil unit 201 of the eleventh embodiment has a second side part 201b and a fourth side part 201d.
  • Positional force The first side portion 201a and the third side portion 201c are formed so as to be disposed in the vicinity of the Y-axis direction extension line of the Z-direction end 201u in the width direction of the first side portion 201a and the third side portion 201c.
  • the extension line in the Y-axis direction is indicated by a one-dot chain line in FIGS. 54 (c) and 54 (d).
  • a gap 100 is formed between the side portions 21d, 21d, 21d, 21d.
  • a gap is substantially formed between the side portions 201d, 201d, and 201d.
  • a gap is substantially formed between the side portions 201b, 201b, and 201b.
  • the stacking directions of the second side and the fourth side are substantially opposite to each other, and the one set of For example, in Embodiment 11, the second direction 206j and the fourth direction 2061 of the first coil 206 are substantially opposite to each other in the first direction. This corresponds to the direction perpendicular to the Z axis + direction, which is substantially the same direction as 2006i and the third direction 206k.
  • the side surface of the present invention corresponds to the surface S formed in the Z-axis-direction of the second side portion 206b or the surface formed in the Z-axis + direction.
  • the side surface of the second side is adjacent between the continuously connected coils means that, for example, in the eleventh embodiment, the side part 201b, the side Part 201b and side
  • the side surface of the fourth side is adjacent between the continuously connected coils refers to, for example, the side part 201d, the side part in the eleventh embodiment. Part 201d and side
  • the second side and the fourth side of each of the plurality of coils are arranged from one surface of the first side of the coil unit.
  • the positions of the second side portion 201b and the fourth side portion 201d are the first side portion 201a and the fourth side portion 201d.
  • the third side portion 201c is formed so as to be disposed in the vicinity of the extension line in the Y-axis direction of the Z-axis-direction end 201u in the width direction.
  • FIG. 53 is a perspective view of the V-phase coil unit according to the twelfth embodiment of the present invention.
  • FIGS. 54 (a) to (d) show a front view, a top view, a right side view, and a left side view of the V-phase coil unit shown in FIG. 53, respectively.
  • the V-phase coil unit 301 according to the twelfth embodiment has the same basic configuration as the U-phase coil unit 201 according to the eleventh embodiment.
  • the positions of the second and fourth sides are the same.
  • the reference numerals indicating the respective parts in the V-phase coil unit 301 of the twelfth embodiment are those obtained by adding 100 to the reference numerals indicating the respective parts of the U-phase coil unit 201, and only the main parts are illustrated. .
  • first direction 301i and the third direction 301k are the same as the first direction 201i and the third direction 301 of the eleventh embodiment.
  • 3 directions indicate the same direction as 201k.
  • the second direction 301j is substantially the Y-axis direction
  • the fourth direction 3011 is substantially the same.
  • the V-phase coil unit of the twelfth embodiment is similar to the eleventh embodiment in that the first side 301a, the second side 301b, It has 3 sides 301c and 4th side 301d, and consists of 3 coils, 1st coil 306, 2nd coil 307, and 3rd coil 308, from winding start part 303 to winding end part 304 Being!
  • the fourth side 301d of the V-phase coil unit 301 of the twelfth embodiment is configured by three side parts 301d, 301d, and 301d force as shown in FIG. 54 (b). .
  • FIG. 55 is a perspective view of the first coil 306.
  • the first coil 306 has a second side 306b and a fourth side 306d, which correspond to the side 301b and the side 301d (see FIG. 54 (b)), respectively. Yes.
  • the first coil 306 has a first side 306a and a third side 306c, and constitutes a part of the side 301a and the side 301c, respectively.
  • the V-phase coil unit 301 of the twelfth embodiment when viewed from the side, includes the first side 301a and the third side 301b in the width direction.
  • the second side 301b and the fourth side 301d are arranged in the vicinity of the Y-axis direction extension line at the center position 301v.
  • the extension line in the Y-axis direction is indicated by a one-dot chain line in FIGS. 54 (c) and 54 (d).
  • the second side and the fourth side of each of the plurality of coils are arranged from the coil at the center of the first side of the coil unit.
  • the second side 301b and the second side 301b and the third side 301b are located near the Y-axis direction extension line at the center position 301v in the width direction of the first side 301a and the third side 301b. This corresponds to the formation of the four side portions 301d.
  • FIG. 56 is a perspective view of a W-phase coil unit according to the thirteenth embodiment of the present invention.
  • FIGS. 57 (a) to 57 (d) show a front view, a top view, a right side view, and a left side view of the V-phase coil unit shown in FIG. 56, respectively.
  • the W-phase coil unit 401 in the thirteenth embodiment has the same basic configuration as the U-phase coil unit 201 in the eleventh embodiment, and the positions of the second and fourth sides are the same. Different from U-phase coil unit 201 of the thirteenth embodiment with reference to the first side and the third side. Therefore, this difference will be mainly described.
  • the reference numerals indicating the respective parts in the W-phase coil unit 401 of the twelfth embodiment are obtained by adding 200 to the reference numerals indicating the respective parts of the U-phase coil unit 201, and only the main parts are shown.
  • the first direction 401i and the third direction 401k are the same as the first direction 201i and the third direction 401k of Embodiment 11. 3 directions indicate the same direction as 201k.
  • the second direction 401j is substantially the Y-axis direction
  • the fourth direction 4011 is substantially Up Y axis + direction.
  • the W-phase coil unit of the thirteenth embodiment is similar to the eleventh embodiment in the first side 401a, the second side 401b, and the third side. It has a side 401c and a fourth side 401d, and is composed of three coils, a first coil 406, a second coil 407, and a third coil 408, from the starting part 403 to the end part 404! RU
  • the fourth side 401d of the V-phase coil unit 401 of the thirteenth embodiment is configured by three sides 401d, 401d, 401d force as shown in FIG. 57 (b). .
  • the three side portions 401b, 401b, and 401b are also configured.
  • FIG. 58 is a perspective view of first coil 406.
  • the first coil 406 has a second side 406b and a fourth side 406d, which correspond to the side 401b and the side 401d (see FIG. 57 (b)), respectively. Yes.
  • the first coil 406 has a first side 406a and a third side 406c, and constitutes a part of the side 401a and the side 401c, respectively.
  • the W-phase coil unit 401 of the thirteenth embodiment has the second side 401b and the fourth side 401d.
  • Positional force The first side portion 401a and the third side portion 401c are formed so as to be disposed in the vicinity of the Z-axis + direction end 401w in the Y-axis direction extension line in the width direction.
  • This Y-axis direction extension line is indicated by a one-dot chain line in FIGS. 57 (c) and 57 (d).
  • the second side and the fourth side of each of the plurality of coils are arranged from the other surface of the first side of the coil unit.
  • the positions of the second side 401b and the fourth side 401d are the Z-axis in the width direction of the first side 401a and the third side 401c, and the Y-axis direction of the direction end 401w. This is equivalent to being formed so as to be arranged in the vicinity of the extension line.
  • FIG. 59 (a) is a perspective view of the stator according to the fourteenth embodiment
  • FIG. 59 (b) and FIG. 59 (c) is a plan view and a side view of the stator shown in FIG. 59 (a).
  • the stator according to the fourteenth embodiment includes eight U-phase coil units 201, V-phase coil units 301, and W-phase coil units 401, and stator core 30.
  • stator according to the fourteenth embodiment is different from the stator according to the fourth embodiment in the coil unit into which the force is inserted, which has the same basic configuration. This difference will be mainly described.
  • stator core 30 used is the same as the stator core of the fourth embodiment described with reference to FIG.
  • a U-phase coil unit 201 is arranged instead of the U-phase coil unit 1 of the stator of the fourth embodiment, and a V-phase coil unit 301 is substituted for the V-phase coil unit 11.
  • a W-phase coil unit 401 is arranged in place of the W-phase coil unit 21 in place of the W-phase coil unit 21 in place of the W-phase coil unit 21, a W-phase coil unit 401 is arranged.
  • the fourth side 401d of the W-phase coil unit 401, the fourth side 301d of the V-phase coil unit 301, and the fourth side of the U-phase coil unit 201 are applied. This is because the heights of 201d can be made substantially equal.
  • the coil units used in the above-described Embodiments 11 to 14 are also configured with three coil forces, and each coil has a force of 12 turns. It is not limited to these numbers. It can be changed as appropriate.
  • the coil and coil unit of the present invention are provided with a winding start portion and a winding end portion of the wire in consideration of the description of the manufacturing method using the coil manufacturing jig in the embodiment. Specific and explained. However, the coil and the coil unit of the present invention include those which are not bound by the coil manufacturing jig and are opposed to the above-described winding direction, and are directed toward the starting end of the winding end. . [0317] In short, by arbitrarily selecting one of both ends of the wire, the lamination direction of the wire is determined.
  • the first related invention is:
  • the three sides and the fourth side are arranged in order with reference to the direction in which the wire is wound.
  • a second groove for forming two sides, a third groove for stacking the wire and forming the third side, and a fourth groove for stacking the wire and forming the fourth side Is provided with a jig body arranged in order along the direction of winding the wire,
  • the direction facing each bottom surface is substantially the same direction
  • each of the second groove and the fourth groove is different from the direction toward the bottom surface of the first groove and the third groove
  • Both ends of each groove in the length direction are coil manufacturing jigs that are open.
  • the second related invention is:
  • each of the second groove and the fourth groove is substantially the same direction
  • the direction is substantially opposite to a direction toward the bottom surfaces of the first groove and the third groove.
  • the third related invention is:
  • the fourth related invention is: The directions toward the bottom surfaces of the second groove and the fourth groove are opposite to each other,
  • the coil manufacturing jig according to the third related invention which is substantially perpendicular to a direction toward the bottom surface of the first groove and the third groove.
  • the fifth related invention is:
  • each of the second groove and the fourth groove is a direction larger than 90 degrees and smaller than 180 degrees with respect to the direction of the force toward the bottom surface of the first groove and the third groove. This is the coil manufacturing jig of the third related invention.
  • the sixth related invention is a
  • the coil manufacturing jig according to the first related invention wherein a side wall of at least one of the first to fourth grooves is detachable from the jig body.
  • the seventh related invention is
  • a plurality of coils formed by winding a single wire and having a shape having at least two pairs of two opposite sides are continuously connected, and (ii) one of the two opposite sides Is the first side, the other is the third side, and (iii) of the other two opposite sides, one is the second side and the other is the fourth side, and (iv) the first side, the second side
  • the directions facing the bottom surfaces of the first groove and the third groove are substantially the same direction
  • each of the second groove and the fourth groove is different from the direction toward the bottom surface of the first groove and the third groove
  • Each width in the second groove and the fourth groove is a length capable of arranging the plurality of wires in the width direction in parallel.
  • both ends of each groove in the length direction are open.
  • the eighth related invention is:
  • the depth of the second groove and the fourth groove is greater than the product of the maximum number of stacked layers of the plurality of coils and the width of the wire in the stacking direction.
  • the coil unit according to the seventh related invention wherein the depth of the first groove and the third groove is greater than the product of the number of all the coils stacked and the width of the wire in the stacking direction. It is a jig.
  • the ninth related invention is a
  • the side wall of one of the second groove and Z or the fourth groove is a coil unit manufacturing jig according to the seventh related invention, which is movable so that the groove width can be adjusted.
  • the tenth related invention is:
  • the side wall of at least one of the first to fourth grooves is the coil unit manufacturing jig according to the seventh related invention, which is detachable from the jig body.
  • the whole or part of one side wall of the second groove and the fourth groove is a coil unit manufacturing jig according to the seventh related invention, which is a side surface of the second side of the coil formed one before.
  • the twelfth related invention is:
  • a coil unit manufacturing jig according to a seventh related invention comprising a detachable spacer forming one side wall of the second groove and the Z or fourth groove.
  • the thirteenth related invention is:
  • the wire is a flat wire
  • Arranging the wire in any one of the first to fourth grooves means that the bottom surface of the groove and the surface having the width of the rectangular wire are opposed to each other.
  • a coil manufacturing method wherein the coil is disposed so that a bottom surface and a surface having the width of the rectangular wire face each other.
  • the fifteenth related invention is:
  • the predetermined groove is the first groove
  • the predetermined number of scouring steps are:
  • the coil manufacturing method according to the thirteenth related invention which is a step of performing at least the arrangement of the wire rod in the third groove.
  • the sixteenth related invention is:
  • a coil manufacturing step including a step of repeating a squeezing step of disposing from the other open end of the groove through one open end of the predetermined groove to a position before the arbitrary position of the predetermined groove a predetermined number of times.
  • a unit repeating step that repeats the step a number of times corresponding to the number of the plurality of coils,
  • the squeezing process in the next coil manufacturing step after the coil manufacturing step is performed in the second groove and the fourth groove on the coil formed in the coil manufacturing step.
  • the coil unit manufacturing method is a step of arranging the wire rod adjacent to the second side and the fourth side.
  • the step of ensuring the width of the second side and Z or the fourth side for the next coil by moving the side wall After the coil manufacturing step, when performing the next coil manufacturing step, the step of ensuring the width of the second side and Z or the fourth side for the next coil by moving the side wall.
  • the coil cute manufacturing method according to the sixteenth related invention further provided.
  • the coil unit manufacturing method further comprising a removal step of removing the one side wall after the unit repetition step and removing the wound wire.
  • the nineteenth related invention is
  • the coil unit manufacturing method according to the sixteenth related invention further comprising a step of inserting the spacer when performing the next coil manufacturing step after the coil manufacturing step.
  • the twentieth related invention is:
  • the "substantially the same direction” in the present invention and the invention related to the present invention is within a range that is recognized as the same direction by social wisdom, and is a “substantially opposite direction” in the present invention. Is within the range that is accepted as the opposite direction in social wisdom.
  • the “substantially vertical direction” in the present invention is within a range that is recognized as vertical according to social wisdom. It is within. In the present specification, “substantially” means a social convention.
  • the coil, the coil unit, the stator, and the rotor that can further improve the space factor or can be easily manufactured without being limited to the shape of the wire. It has the effect that it can be provided, and is useful as a coil or armature used in motors and generators.

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

Abstract

Bobine et unité de bobine ayant un facteur de laminage amélioré et étant facilement fabriquées indépendamment de la forme d’une tige d’enroulement. La bobine est caractérisée en ce qu’une tige d’enroulement est enroulée, la bobine est pourvue de bobines sur deux côtés se faisant face et sur deux autres côtés se faisant face, des directions, selon lesquelles les bobines sur les deux côtés se faisant face sont laminées, sont les mêmes, et des directions, selon lesquelles les bobines sur les deux autres côtés se faisant face sont laminées, sont inverses à ces directions.
PCT/JP2006/301365 2005-01-28 2006-01-27 Bobine, unite de bobine, stator et rotor WO2006080465A1 (fr)

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JP2005-021314 2005-01-28
JP2005021314 2005-01-28

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP3148054A1 (fr) * 2015-09-24 2017-03-29 Siemens Aktiengesellschaft Generateur electrique dote de piege a flux
WO2018145807A1 (fr) * 2017-02-07 2018-08-16 SciMo - Elektrische Hochleistungsantriebe GmbH Enroulement d'une machine électrique présentant un degré de remplissage plus élevé

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Publication number Priority date Publication date Assignee Title
CN102668332B (zh) * 2010-06-11 2015-04-08 丰田自动车株式会社 定子以及用于定子的单位线圈的制造方法
JP5674693B2 (ja) * 2012-03-01 2015-02-25 アイシン・エィ・ダブリュ株式会社 巻線成形装置および巻線成形方法

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JP2000184646A (ja) * 1998-12-15 2000-06-30 Hitachi Ltd 回転機およびステータへのコイルの組込み方法
JP2001078379A (ja) * 1999-09-01 2001-03-23 Mosutetsuku:Kk モーター用コイル装置
JP2001346365A (ja) * 2000-06-01 2001-12-14 Sumitomo Heavy Ind Ltd リニアモータ用コイルユニットの単体コイル、その巻き取り、成型方法及び装置、及びコイルユニットの成形、製造方法

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JP3052205B1 (ja) * 1999-09-28 2000-06-12 住友重機械工業株式会社 リニアモ―タ用可動コイル及びその製造方法
JP2001128401A (ja) * 1999-10-26 2001-05-11 Hitachi Ltd 回転電機の回転子

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JP2000184646A (ja) * 1998-12-15 2000-06-30 Hitachi Ltd 回転機およびステータへのコイルの組込み方法
JP2001078379A (ja) * 1999-09-01 2001-03-23 Mosutetsuku:Kk モーター用コイル装置
JP2001346365A (ja) * 2000-06-01 2001-12-14 Sumitomo Heavy Ind Ltd リニアモータ用コイルユニットの単体コイル、その巻き取り、成型方法及び装置、及びコイルユニットの成形、製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3148054A1 (fr) * 2015-09-24 2017-03-29 Siemens Aktiengesellschaft Generateur electrique dote de piege a flux
WO2017050517A1 (fr) * 2015-09-24 2017-03-30 Siemens Aktiengesellschaft Générateur électrique comportant une partie en escalier
WO2018145807A1 (fr) * 2017-02-07 2018-08-16 SciMo - Elektrische Hochleistungsantriebe GmbH Enroulement d'une machine électrique présentant un degré de remplissage plus élevé

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