WO2016208629A1 - Rotating electrical machine stator, rotating electrical machine, rotating electrical machine stator production method - Google Patents

Rotating electrical machine stator, rotating electrical machine, rotating electrical machine stator production method Download PDF

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Publication number
WO2016208629A1
WO2016208629A1 PCT/JP2016/068529 JP2016068529W WO2016208629A1 WO 2016208629 A1 WO2016208629 A1 WO 2016208629A1 JP 2016068529 W JP2016068529 W JP 2016068529W WO 2016208629 A1 WO2016208629 A1 WO 2016208629A1
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WO
WIPO (PCT)
Prior art keywords
laminated
stator
divided
rotating electrical
electrical machine
Prior art date
Application number
PCT/JP2016/068529
Other languages
French (fr)
Japanese (ja)
Inventor
智史 箱田
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to GB1716302.3A priority Critical patent/GB2553242A/en
Priority to JP2017524946A priority patent/JP6334823B2/en
Priority to AU2016284404A priority patent/AU2016284404B2/en
Publication of WO2016208629A1 publication Critical patent/WO2016208629A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/141—Stator cores with salient poles consisting of C-shaped cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • 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
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/022—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with salient poles or claw-shaped poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/08—Forming windings by laying conductors into or around core parts
    • H02K15/095—Forming windings by laying conductors into or around core parts by laying conductors around salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/18—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having horse-shoe armature cores

Definitions

  • the present invention relates to a rotating electrical machine stator, a rotating electrical machine, and a method of manufacturing a rotating electrical machine stator.
  • a stator of a brushless motor having a permanent magnet type rotor is composed of a circular yoke and a plurality of pole arms protruding radially inward from the yoke (see, for example, Patent Document 1).
  • the outer peripheral shape of the cross section perpendicular to the axial direction is changed from a circular shape to a rectangular shape, and extends in a direction perpendicular to the yoke from a linear yoke and both ends of the yoke.
  • Two cores each having two pole arms and having a C-shaped outer periphery in a cross section perpendicular to the axial direction are arranged so that the pole arms face each other.
  • the filling rate of the stator (the ratio of the stator components to the outer shape of the stator) can be increased.
  • An efficient rotating electrical machine can be realized.
  • the operating range of the winding machine is restricted in order to avoid interference between adjacent pole arms and the winding machine.
  • the operating range of the winding machine is not restricted on the side where the pole arms are not adjacent to each other. Thereby, it becomes easy to wind the coil in alignment with the pole arm, and the density of the coil is increased.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a stator of a rotating electric machine having a high coil space factor, a rotating electric machine, and a method of manufacturing the stator of the rotating electric machine.
  • the stator of the rotating electrical machine is: A plurality of U-shaped split laminated iron cores formed by laminating iron core pieces; In the stator of the rotating electric machine consisting of a coil wound around the laminated tooth portion of the divided laminated iron core,
  • the divided laminated iron core is A split laminated yoke part;
  • the two laminated teeth portions are provided at both ends of the divided laminated yoke portion,
  • the two laminated teeth portions and the divided laminated yoke portions have a longitudinal direction of each laminated tooth portion and a longitudinal direction of the divided laminated yoke portions in the same direction, and the longitudinal directions of the divided laminated yoke portions are the same. From the state where the laminated tooth portions are arranged straight at both ends, the two laminated tooth portions can be bent or rotated so as to face the inner side of the stator with respect to the divided laminated yoke portion. It is connected to.
  • the rotating electrical machine comprises the stator and a rotor that is rotatably inserted inside the stator.
  • a method of manufacturing a stator for a rotating electrical machine includes: An iron core that is straightly arranged in a strip shape from a magnetic steel sheet so that a split yoke portion and teeth portions at both ends of the split yoke portion are in the same direction as the longitudinal direction of the split yoke portion and the longitudinal direction of the tooth portion.
  • Iron core piece manufacturing process of cutting out pieces A plurality of the iron core pieces are laminated, and a laminated divided yoke portion in which the divided yoke portions are laminated, and two laminated tooth portions in which the two tooth portions are laminated, are laminated by a connecting portion so as to be bent or rotated.
  • a laminating step for forming a split laminated core intermediate Positioning and fixing step of positioning and fixing the divided laminated core intermediate body to the winding machine so that the axial direction of the rotary shaft of the flyer of the winding machine and the longitudinal direction of the divided laminated core intermediate body coincide with each other; A first winding step of winding a coil around one of the laminated tooth portions; A second winding step of winding a coil on the other laminated tooth portion; A bending step of bending the two laminated tooth portions of the divided laminated core intermediate body wound with the coil in the same direction to form a U-shaped divided laminated core; A joining step of fixing the free ends of the laminated tooth portions of the plurality of adjacent laminated laminated cores to each other.
  • the split laminated yoke portion of the split laminated iron core intermediate and the laminated tooth portion are straightened during coil winding. Since it arrange
  • FIG. 5 is a cross-sectional view taken along line X-X ′ in FIG. 4.
  • Embodiment 1 FIG. Embodiment 1 of the present invention will be described below with reference to the drawings.
  • “axial direction”, “circumferential direction”, “radial direction”, “inner peripheral side”, “outer peripheral side”, “inner peripheral surface”, “outer peripheral surface”, “inner side”, “ “Outside” refers to the “axial direction”, “circumferential direction”, “radial direction”, “inner peripheral side”, “outer peripheral side”, “inner peripheral surface”, “outer peripheral surface”, “inner side” of the stator, respectively. ",” Outside ".
  • the direction away from the center of the stator is “upper”, and the direction closer to the center of the stator is “lower”.
  • FIG. 1 is a schematic cross-sectional view showing a configuration of a rotating electrical machine 100 according to Embodiment 1 of the present invention.
  • the rotating electrical machine 100 includes a rotor 2 and a stator 3.
  • the rotor 2 includes a rotating shaft 21 and a permanent magnet 22 disposed on the outer periphery of the rotating shaft 21.
  • the stator 3 includes U-shaped split laminated cores 31 and 32.
  • the divided laminated iron core 31 includes a divided laminated yoke portion 31a and two laminated tooth portions 31b and 31c that are bent at right angles from both longitudinal ends of the divided laminated yoke portion 31a and project in the same direction.
  • the divided laminated iron core 32 includes a divided laminated yoke portion 32a and two laminated tooth portions 32b and 32c that are bent at right angles from both ends of the divided laminated yoke portion 32a and project in the same direction.
  • the divided laminated iron core 31 and the divided laminated iron core 32 have the same configuration, but in the present specification, the reference numerals are separately described for convenience of the following explanation.
  • a slot S1 for accommodating the coil 41b wound around the laminated tooth portion 31b and the coil 41c wound around the laminated tooth portion 31c is formed between the laminated tooth portion 32b and the laminated tooth portion 32c.
  • a slot S2 for accommodating the coil 42b wound around the laminated tooth portion 32b and the coil 42c wound around the laminated tooth portion 32c is formed between the laminated tooth portion 32b and the laminated tooth portion 32c.
  • the coils 41b, 41c, 42b, and 42c are wound around the laminated tooth portions 31b, 31c, 32b, and 32c via the insulating insulator 5.
  • the divided laminated iron core 31 and the divided laminated iron core 32 are rotated so that the laminated tooth portion 31b and the laminated tooth portion 32b face each other in a straight line, and the laminated tooth portion 31c and the laminated tooth portion 32c face each other in a straight line. It arrange
  • the magnetic attraction portions 31bz, 31cz, 32bz, and 32cz at the free ends of the laminated teeth portions 31b, 31c, 32b, and 32c on the rotor 2 side are opposed to the rotor 2 along the outer peripheral surface thereof.
  • the outer peripheral surfaces of the magnetic attraction portions 31bz, 31cz, 32bz, and 32cz are provided with dovetail recesses 31bzr, 31czr, 32bzr, and 32czr (resin member coupling portions) extending in the axial direction.
  • the both ends of a resin-made fixing member 7b (resin member) are fitted in the recess 31bzr and the recess 32bzr in the axial direction, and the laminated tooth portion 31b and the laminated tooth portion 32b are fixed to each other.
  • both end portions of the resin fixing member 7c are fitted in the recess 31czr and the recess 32czr in the axial direction, and the laminated tooth portion 31c and the laminated tooth portion 32c adjacent in the circumferential direction are fixed to each other.
  • it may replace with the recessed parts 31bzr, 31czr, 32bzr, 32czr, and it may be set as a convex part, and a recessed part may be provided in the fixing member side.
  • FIG. 2 is a flowchart showing a method for manufacturing the stator 3 of the rotating electrical machine 100.
  • FIG. 3 is a view showing an arrangement when a plurality of core pieces 6 are cut out from one continuous electromagnetic steel sheet P.
  • FIG. 4 is a schematic diagram of the winding machine 8 and the divided laminated core intermediate 30 that are performing the first winding process.
  • FIG. 5 is a cross-sectional view taken along line XX ′ of FIG.
  • the iron core piece 6 shown in FIG. 3 is a plate-like member constituting each lamination of the divided laminated iron cores 31 and 32. At the time of cutting out the iron core piece 6 from the electromagnetic steel sheet P, the iron core piece 6 is a strip-shaped member.
  • the required number of iron core pieces 6 is cut out from the electromagnetic steel sheet P in the arrangement shown in FIG. 3 (iron core piece manufacturing process: S001).
  • the iron core piece 6 includes a split yoke portion 6a at the center in the longitudinal direction, and includes a tooth portion 6b and a tooth portion 6c connected to both ends in the longitudinal direction of the split yoke portion 6a by thin-walled portions 6s.
  • a V-shaped notch 6v is provided between the divided yoke portion 6a of the iron core piece 6 and the tooth portions 6b and 6c, and the portion connected to each other is a thin portion 6s.
  • two core pieces 6 are arranged in parallel in the direction perpendicular to the rolling direction D of the electromagnetic steel sheet P. As long as the longitudinal direction of the iron core pieces 6 and the rolling direction D of the electromagnetic steel sheet P are aligned, the number of parallel arrangements may be more.
  • the strip-shaped iron core pieces 6 that have been cut out are laminated in the axial direction as they are, and the concave and convex portions provided on the upper and lower sides of the laminated surface (not shown) are caulked to connect the iron core pieces 6 to each other.
  • a portion where the divided yoke portion 6a of the core piece 6 is laminated becomes a divided laminated yoke portion 30a of the divided laminated core intermediate body 30 shown in FIG. 4, and the divided laminated yoke portion 30a is divided into divided laminated cores 31, 32 shown in FIG.
  • the divided laminated yoke portions 31a and 32a are formed.
  • the portion where the tooth portions 6 b and 6 c of the iron core piece 6 are laminated becomes the laminated tooth portions 30 b and 30 c of the divided laminated iron core intermediate 30, and the laminated teeth portions 30 b and 30 c are laminated of the divided laminated iron cores 31 and 32. Teeth portions 31b, 31c, 32b, and 32c are formed.
  • an insulator molding step (S003) is performed.
  • the insulator 5 that electrically insulates the coil 40 (coils 41b, 41c, 42b, 42c) and the divided laminated core intermediate 30 (divided laminated iron cores 31, 32) from the laminated teeth 30b, 30c. Molded integrally on the outer periphery.
  • the winding machine 8 shown in FIG. 4 includes a rotary positioning mechanism 80 for fixing the divided laminated core intermediate 30 and a flyer 88 for feeding out the wire 41 that becomes the coil 40.
  • the rotational positioning mechanism 80 includes a disk-shaped base portion 81, a square block 82, a top plate 83 that fixes the divided laminated yoke portion 30 a between the base portion 81 and two screws 84.
  • the base portion 81 of the rotation positioning mechanism 80 can rotate around the rotation axis A in the direction of the arrow A1 in FIG.
  • the rectangular block 82 is used to position the divided laminated yoke portion 30a of the divided laminated core intermediate body 30 at a predetermined position on the board surface of the base portion 81.
  • the knock pin 85 is used to guide a crossover that connects the two coils 40 when the coil 40 is continuously wound around the two laminated tooth portions 30b and 30c. Two knock pins 85 are installed on the base portion 81.
  • the knock pin 85 is installed on the outer peripheral side of the laminated thin-walled connecting portion 3s in which the divided laminated yoke portion 30a and the laminated tooth portions 30b and 30c of the divided laminated core intermediate body 30 are connected so as to be bendable.
  • the rotation axis B of the flyer 88 is disposed so as to be orthogonal to the rotation axis A of the rotation positioning mechanism 80, and can move forward and backward in the axial direction c of the rotation axis B.
  • the coil winding process includes a positioning and fixing process (S100), a first winding process (S101), an iron core rotating process (S102), a second winding process (S103), and a removing process (S104).
  • S100 positioning and fixing process
  • S101 first winding process
  • S102 iron core rotating process
  • S103 second winding process
  • S104 removing process
  • the split laminated core intermediate 30 is arranged such that the corner on the inner peripheral side of the split laminated yoke portion 30a is in contact with the corner on the side surface on the rotation axis A side of the rectangular block 82, and the base portion 81 is provided. Positioned above. Further, at this time, the divided laminated core intermediate 30 is disposed so that the free end portion side of one laminated tooth portion 30b that winds the coil 40 first faces the rotation axis B of the flyer 88, and the other laminated teeth. The part 30c faces the opposite side. That is, the longitudinal direction of the divided laminated core intermediate body 30 coincides with the axial direction of the rotation axis B of the flyer 88.
  • the first winding step (S101) is performed on the laminated tooth portion 30b. While the flyer 88 of the winding machine 8 is moved in the axial direction c of the rotary shaft B, the flyer 88 is turned around the laminated tooth portion 30 b to wind the coil 40. At this time, the rotating surface Q on which the tip of the flyer 88 rotates does not interfere with the laminated tooth portion 30c on the opposite side.
  • FIG. 6 is a schematic diagram of the winding machine 8 and the divided laminated core intermediate 30 that are performing the second winding process.
  • the rotational positioning mechanism 80 is rotated 180 degrees in the direction of arrow A1 in FIG. 4 without cutting the winding end portion of the coil 40 (iron rotation process: S102). 6 is routed along the outside of the two knock pins 85 provided in the base portion 81 of the rotational positioning mechanism 80.
  • the second winding step (S103) is performed on the laminated tooth portion 30c. While the flyer 88 of the winding machine 8 is moved in the left-right direction in FIG. 6, the flyer 88 is turned around the laminated tooth portion 30 c to wind the coil 40. The turning direction of the flyer 88 is the same as the direction wound around the laminated teeth portion 30b. Similar to the first winding step, the rotating surface Q on which the tip of the flyer 88 rotates does not interfere with the opposite laminated tooth portion 30c.
  • FIG. 7 is a cross-sectional view of a split laminated iron core 31 wound with a coil.
  • the laminated tooth portion 30b and the laminated tooth portion 30c of the coiled laminated laminated core intermediate body 30 removed from the rotational positioning mechanism 80 are closed in the direction in which the notch 6v of the iron core piece 6 is closed at the laminated thin-walled connecting portion 3s.
  • the same process is repeated and the division
  • the divided laminated iron core 31 and the divided laminated iron core 32 are arranged so that the laminated tooth portions face each other, and the fixing member 7b is fitted and fixed to the concave portion 31bzr and the concave portion 32bzr.
  • An adhesive may be used to firmly fix.
  • the fixing member 7c is fitted and fixed to the concave portion 31czr and the concave portion 32czr on the opposite side.
  • the two divided laminated iron cores 31 and 32 become the stator 3 that is coupled to each other while maintaining a predetermined interval via the fixing members 7b and 7c (coupling step: S005).
  • the rotor 2 is inserted into the inner peripheral side of the stator 3 and accommodated in a frame (not shown) to obtain the rotating electrical machine 100.
  • FIG. 8 is a diagram showing an arrangement when a conventional integral iron core piece 60b is cut from the electromagnetic steel sheet P2 as a comparative example.
  • the shape of the iron core piece 60 b is the same as the shape obtained by bending the iron core piece 6 according to the first embodiment at the thin-walled connecting portion 61.
  • the area of one iron core piece 6 is A0 and the length in the longitudinal direction of the magnetic steel sheet P is L1. If the length in the direction perpendicular to the longitudinal direction is L2, the effective usage rate of the material (2A0 / L1 ⁇ L2) is 59%.
  • the iron core piece 60 b is cut off in the arrangement as shown in FIG. 8, the area of one iron core piece 60 b is A0 which is the same as that of the iron core piece 6.
  • the effective usage rate of the material (2A0 / L3 ⁇ L4) is 52%. As described above, a higher material usage rate can be obtained by cutting the plate in the arrangement shown in FIG.
  • the magnetic flux flowing directions J1 to J3 coincide with the rolling direction D of the electromagnetic steel sheet P in both the tooth portions 6b and 6c and the divided yoke portion 6a.
  • the rolling direction has a smaller magnetic resistance, and iron loss generated in the iron core can be reduced. Therefore, in comparison with the iron core piece 60b of the comparative example in which only one of the teeth part and the yoke part can coincide with the rolling direction D, the iron core piece 6 has a rolling direction D of the electromagnetic steel sheet P and a longitudinal direction of the iron core piece 6. By arranging them so as to coincide with each other, the flow of magnetic flux through the divided laminated iron cores 31 and 32 becomes smooth, and good magnetic properties can be obtained.
  • the split laminated yoke portion 30a of the split laminated core intermediate 30 and the laminated teeth 30b and 30c are arranged in a straight belt shape when winding the coil 40, so that when the coil 40 is wound around one laminated tooth portion, the rotating surface Q on which the tip of the flyer 88 rotates and the opposite laminated tooth portion 30c. And will not interfere.
  • the laminated teeth 30b and 30c can be easily wound in an aligned manner, and no gap is formed between the two coils housed in one slot.
  • the volume factor can be improved, and the filling rate of the stator 3 (the ratio of the stator components to the outer shape of the stator 3) can be increased.
  • the coil since there is no obstacle around the flyer 88 when winding the coil 40, the coil can be wound at high speed.
  • the connection work of a coil terminal part can be eliminated and the inexpensive stator 3 of the rotary electric machine 100 can be obtained.
  • the magnetic attracting portions 31bz and 32bz and 31cz and 32cz of the split laminated iron cores 31 and 32 are fixed to each other by the fixing members 7b and 7c, so that the positional accuracy of the magnetic attracting portion can be improved.
  • crossover wire 42 can be continuously routed between the coils 40 wound around the two laminated tooth portions 30b and 30c, the productivity of the stator 3 and the rotating electrical machine 100 is improved. it can.
  • FIG. 9 is a schematic diagram of the winding machine and the split laminated core intermediate 30 that are performing the winding process.
  • FIG. 10 is a flowchart showing a coil winding process of the rotating electrical machine according to the present embodiment. In FIG. 10, only the flowchart of the simultaneous winding process which is a different part from Embodiment 1 is shown.
  • the first winding process and the second winding process are sequentially performed on the two laminated tooth portions 30b and 30c of the divided laminated iron core intermediate 30 by one flyer 88.
  • the winding work of the coil 40 is simultaneously performed on the two laminated tooth portions 30b and 30c by the two flyers 88a and 88b (simultaneous winding step: S201).
  • the rotation axes B1 and B2 of the flyers 88a and 88b are arranged opposite to each other with the rotation positioning mechanism 80 interposed therebetween so as to be orthogonal to the rotation axis A of the rotation positioning mechanism 80, and the axial directions c1 of the rotation axes B1 and B2, respectively. , C2 can be moved forward and backward.
  • the fixing of the split laminated core intermediate 30 to the rotational positioning mechanism 80 is the same as in the first embodiment.
  • the free ends of the two laminated tooth portions 30b and 30c are respectively opposed to the rotation axes B1 and B2 of the flyers 88a and 88b, and the coils 40 are simultaneously wound by the two flyers 88a and 88b. Work is carried out.
  • the winding end portions or the winding start portions of the two laminated tooth portions are connected to connect the coils 40 wound around the two laminated tooth portions 30b and 30c.
  • the coil 40 is simultaneously applied to the two laminated tooth portions 30b and 30c by the two flyers 88a and 88b. Since winding is possible, the winding work time of the coil 40 can be shortened by more than half compared to the first embodiment.
  • FIG. 11 is a schematic cross-sectional view showing the configuration of rotating electric machine 300 according to Embodiment 3 of the present invention.
  • FIG. 12 is a flowchart showing a coil winding process of the rotating electrical machine according to the present embodiment. In FIG. 12, only the flowchart of the molding process which is a different part from Embodiment 1 is shown.
  • the rotating electrical machine 300 is molded on the outer periphery with a resin molding member 307 (molding step: S305).
  • the mold member 307 may cover the entire stator 303 as shown in FIG. 11, or the coil teeth 41 b, 41 c, 42 b, 42 c, and at least the laminated teeth 31 b of the divided laminated iron cores 31, 32. , 32b and the free ends of the laminated tooth portions 31c, 32c may be formed so as to cover each other.
  • the mold member 307 is integrally formed with the split laminated cores 31 and 32. , 32 are fixed using the fixing members 7b and 7c, and the assembly is facilitated and the productivity of the stator 303 and the rotating electrical machine 300 is good compared to the rotating electrical machine 100 of the first embodiment.
  • highly accurate positioning can be performed using a mold.
  • FIG. 13A is a schematic cross-sectional view showing a configuration of a split laminated iron core 331 around which a coil of a rotating electrical machine according to Embodiment 4 of the present invention is wound.
  • FIG. 13B is an enlarged cross-sectional view taken along the line YY ′ of FIG.
  • the divided laminated yoke portion 31a and the laminated teeth portions 31b and 31c are connected to each other so as to be bendable by the laminated thin-walled connecting portion 3s, but in this embodiment, FIG.
  • the divided laminated yoke portion 331a and the laminated teeth portions 331b, 331c are formed by laminating the thin plate-like core pieces 306a and the laminated teeth portions 331b, 331c constituting each laminated laminated iron core 331.
  • the core pieces 306b and 306c (in fact, there are two types of each) that are configured are rotatably connected with the concave portions and the convex portions provided in the respective core pieces being crimped.
  • a convex portion 306cp is provided on the lower surface of the iron core piece 306c of the laminated tooth portion 331c, and the concave portion on the upper surface of the iron core piece 306a of the divided laminated yoke portions 331a that are alternately laminated.
  • the convex portion 306cp is caulked to 306ar to constitute a rotatable connecting portion R.
  • the laminated tooth portions 331b and 331c are returned to the U-shaped state after the 40 windings of the coil.
  • the handling at the time becomes easier than the bending of the thin portion of the first embodiment, and the stator of the rotating electrical machine and the productivity of the rotating electrical machine can be further improved.
  • FIG. 14 is a schematic cross-sectional view showing a configuration of rotating electric machine 500 according to Embodiment 5 of the present invention.
  • the stator 3 of the first embodiment is configured by the two divided laminated cores 31 and 32.
  • the stator 503 has three U-shapes as shown in FIG. Divided laminated iron cores 331, 332, and 333.
  • Other configurations are the same as those of the first embodiment.
  • stator 503 of rotating electrical machine 500 According to the manufacturing method of stator 503 of rotating electrical machine 500, rotating electrical machine 500, and stator 503 of rotating electrical machine 500 according to Embodiment 5 of the present invention, the number of laminated tooth portions is increased as compared with Embodiment 1, and thus multipolarization is achieved. Thus, torque ripple generated in the rotating electric machine 500 can be reduced.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

A rotating electrical machine is provided with: a divided laminated yoke section (31a); and two laminated teeth sections (31b, 31c) on both ends of the divided laminated yoke section (31a). In the two laminated teeth sections (31b, 31c) and the divided yoke section (31a), the longitudinal direction of each laminated teeth sections (31b, 31c) and the longitudinal direction of the divided laminated yoke section (31a) are the same direction, and from a state in which each of the laminated teeth sections (31b, 31c) are lined up straight on both ends of the divided laminated yoke section (31a) in the longitudinal direction, the two laminated teeth sections (31b, 31c) are bendably or rotatably coupled to the divided laminated yoke section (31a) so as to be in a state facing the inner side of the stator (3).

Description

回転電機の固定子、回転電機、回転電機の固定子の製造方法Rotating electrical machine stator, rotating electrical machine, and manufacturing method of rotating electrical machine stator
　この発明は、回転電機の固定子、回転電機、回転電機の固定子の製造方法に関するものである。 The present invention relates to a rotating electrical machine stator, a rotating electrical machine, and a method of manufacturing a rotating electrical machine stator.
　従来、永久磁石型のロータを有するブラシレスモータの固定子は、円形状のヨークと、ヨークから径方向内側に突出する複数個の極アームで構成される（例えば、特許文献１参照）。特許文献１で提案されている固定子は、軸方向に垂直な断面の外周形状を円形から矩形に変更しており、直線状のヨークと、ヨークの両端部からヨークに対して直角方向に延びる２つの極アームを有する、軸方向に垂直な断面の外周形状がＣ字形状のコアを、２個、極アームが対向するように配置する構成となっている。 Conventionally, a stator of a brushless motor having a permanent magnet type rotor is composed of a circular yoke and a plurality of pole arms protruding radially inward from the yoke (see, for example, Patent Document 1). In the stator proposed in Patent Document 1, the outer peripheral shape of the cross section perpendicular to the axial direction is changed from a circular shape to a rectangular shape, and extends in a direction perpendicular to the yoke from a linear yoke and both ends of the yoke. Two cores each having two pole arms and having a C-shaped outer periphery in a cross section perpendicular to the axial direction are arranged so that the pole arms face each other.
　固定子の同上の外周形状を円形から矩形にすることにより、固定子の充填率（固定子の外形に対して、固定子構成部品が占める割合）を高めることができ、結果的に小型かつ高効率の回転電機を実現できる。また、コイルの巻線時において、外周形状が円形の固定子では、隣り合う各極アーム同士と巻線機との干渉を避けるために、巻線機の作動範囲が制約されるのに対して、外周形状がＣ字形状の各極アームでは、極アーム同士が隣り合わない側において巻線機の作動範囲の制約を受けない。これにより、コイルを極アームに対して整列に巻き易くなり、コイルの高密度化が図られる。 By changing the outer peripheral shape of the stator from a circular shape to a rectangular shape, the filling rate of the stator (the ratio of the stator components to the outer shape of the stator) can be increased. An efficient rotating electrical machine can be realized. In addition, when the coil is wound, in the case of a stator having a circular outer peripheral shape, the operating range of the winding machine is restricted in order to avoid interference between adjacent pole arms and the winding machine. In each pole arm having a C-shaped outer peripheral shape, the operating range of the winding machine is not restricted on the side where the pole arms are not adjacent to each other. Thereby, it becomes easy to wind the coil in alignment with the pole arm, and the density of the coil is increased.
実用新案登録第３１９３３５７号、段落０００２～段落０００５Utility Model Registration No. 3193357, paragraphs 0002-0005
　特許文献１に記載の回転電機の固定子にあっては、コイルの巻線時において、各極アームの隣り合わない側では巻線機の作動範囲に制約を受けないが、隣り合う側にあるスロット空間においては、２つのティース部間に巻線機のノズルを差し込む隙間が必要であり、最終的にコイルとコイルの間にノズルの幅分の空間が残ってしまい、コイルの占積率を向上できないという課題があった。 In the stator of the rotating electrical machine described in Patent Document 1, when the coils are wound, the operation range of the winding machine is not restricted on the non-adjacent side of each pole arm, but on the adjacent side. In the slot space, a gap for inserting the nozzle of the winding machine is required between the two tooth portions, and finally a space corresponding to the width of the nozzle remains between the coils, and the coil space factor is reduced. There was a problem that it could not be improved.
　この発明は、上記のような課題を解決するためになされたものであり、コイルの占積率の高い回転電機の固定子、回転電機、回転電機の固定子の製造方法を提供することを目的とする。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a stator of a rotating electric machine having a high coil space factor, a rotating electric machine, and a method of manufacturing the stator of the rotating electric machine. And
　この発明に係る回転電機の固定子は、
鉄心片を積層して形成された複数のコ字形の分割積層鉄心と、
前記分割積層鉄心の積層ティース部に巻線したコイルとからなる回転電機の固定子において、
前記分割積層鉄心は、
分割積層ヨーク部と、
前記分割積層ヨーク部の両端に、２つの前記積層ティース部とを備え、
２つの前記積層ティース部と前記分割積層ヨーク部は、それぞれの前記積層ティース部の長手方向と、前記分割積層ヨーク部の長手方向とが同方向となって、前記分割積層ヨーク部の長手方向の両端に、それぞれの前記積層ティース部が真っ直ぐに並ぶ状態から、２つの前記積層ティース部が、前記分割積層ヨーク部に対して、前記固定子の内側に向く状態となるように折り曲げ可能又は回転可能に連結されているものである。 The stator of the rotating electrical machine according to the present invention is:
A plurality of U-shaped split laminated iron cores formed by laminating iron core pieces;
In the stator of the rotating electric machine consisting of a coil wound around the laminated tooth portion of the divided laminated iron core,
The divided laminated iron core is
A split laminated yoke part;
The two laminated teeth portions are provided at both ends of the divided laminated yoke portion,
The two laminated teeth portions and the divided laminated yoke portions have a longitudinal direction of each laminated tooth portion and a longitudinal direction of the divided laminated yoke portions in the same direction, and the longitudinal directions of the divided laminated yoke portions are the same. From the state where the laminated tooth portions are arranged straight at both ends, the two laminated tooth portions can be bent or rotated so as to face the inner side of the stator with respect to the divided laminated yoke portion. It is connected to.
　この発明に係る回転電機は、前記固定子と、前記固定子の内側に回転可能に挿入された回転子とからなるものである。 The rotating electrical machine according to the present invention comprises the stator and a rotor that is rotatably inserted inside the stator.
　この発明に係る回転電機の固定子の製造方法は、
電磁鋼板から、分割ヨーク部と前記分割ヨーク部の両端にティース部とが、前記分割ヨーク部の長手方向と前記ティース部の長手方向とが同方向となるように、帯状にまっすぐに配置した鉄心片を切り抜く鉄心片製造工程と、
複数の前記鉄心片を積層し、前記分割ヨーク部が積層された積層分割ヨーク部と、２つの前記ティース部が積層された２つの積層ティース部が、連結部によって折り曲げまたは回転可能に積層された分割積層鉄心中間体を形成する積層工程と、
前記分割積層鉄心中間体を、巻線機に、前記巻線機のフライヤの回転軸の軸方向と、前記分割積層鉄心中間体の長手方向が一致するように位置決め固定する位置決め固定工程と、
一方の前記積層ティース部にコイルを巻線する第一巻線工程と、
他方の前記積層ティース部にコイルを巻線する第二巻線工程と、
前記コイルを巻線した前記分割積層鉄心中間体の２つの前記積層ティース部を前記連結部において、同方向に折り曲げてコ字形の分割積層鉄心を形成する折り曲げ工程と、
隣り合う複数の前記分割積層鉄心の前記積層ティース部の自由端部同士を互いに固定する結合工程とを有するものである。 A method of manufacturing a stator for a rotating electrical machine according to the present invention includes:
An iron core that is straightly arranged in a strip shape from a magnetic steel sheet so that a split yoke portion and teeth portions at both ends of the split yoke portion are in the same direction as the longitudinal direction of the split yoke portion and the longitudinal direction of the tooth portion. Iron core piece manufacturing process of cutting out pieces,
A plurality of the iron core pieces are laminated, and a laminated divided yoke portion in which the divided yoke portions are laminated, and two laminated tooth portions in which the two tooth portions are laminated, are laminated by a connecting portion so as to be bent or rotated. A laminating step for forming a split laminated core intermediate;
Positioning and fixing step of positioning and fixing the divided laminated core intermediate body to the winding machine so that the axial direction of the rotary shaft of the flyer of the winding machine and the longitudinal direction of the divided laminated core intermediate body coincide with each other;
A first winding step of winding a coil around one of the laminated tooth portions;
A second winding step of winding a coil on the other laminated tooth portion;
A bending step of bending the two laminated tooth portions of the divided laminated core intermediate body wound with the coil in the same direction to form a U-shaped divided laminated core;
A joining step of fixing the free ends of the laminated tooth portions of the plurality of adjacent laminated laminated cores to each other.
　本発明に係る回転電機の固定子、回転電機、回転電機の固定子の製造方法によれば、分割積層鉄心中間体の分割積層ヨーク部と、積層ティース部とが、コイル巻線時において真っ直ぐに帯状に配置されるので、一方の積層ティース部にコイルを巻線する時に、フライヤの先端が回転する回転面と、反対側の積層ティース部とが干渉することがない。これにより、フライヤの作動範囲に制約を受けないため、簡単に積層ティース部に整列巻きができ、一つのスロット内に収容される２つのコイル間に隙間が生じず、コイルの占積率を向上でき、固定子の充填率を高めることができる。また、コイル巻線時にフライヤの周囲に障害物が無いので、高速にコイルを巻線できる。また、コイル端末部の接続作業をなくすことができ、安価な回転電機の固定子を得ることができる。 According to the stator of the rotating electrical machine, the rotating electrical machine, and the method for manufacturing the stator of the rotating electrical machine according to the present invention, the split laminated yoke portion of the split laminated iron core intermediate and the laminated tooth portion are straightened during coil winding. Since it arrange | positions at strip | belt shape, when winding a coil around one lamination | stacking teeth part, the rotating surface which the front-end | tip of a flyer rotates, and the lamination | stacking teeth part on the opposite side do not interfere. As a result, the range of operation of the flyer is not limited, so the stacked teeth can be easily aligned and there is no gap between the two coils housed in one slot, improving the coil space factor. And the filling rate of the stator can be increased. In addition, since there is no obstacle around the flyer during coil winding, the coil can be wound at high speed. Moreover, the connection work of a coil terminal part can be eliminated and an inexpensive stator for a rotating electrical machine can be obtained.
この発明の実施の形態１に係る回転電機の構成を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る回転電機の固定子の製造方法を示すフローチャートである。It is a flowchart which shows the manufacturing method of the stator of the rotary electric machine which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る鉄心片の板取り配置図である。It is a plan drawing arrangement drawing of the iron core piece concerning Embodiment 1 of this invention. この発明の実施の形態１に係る第一巻線工程を実施中の巻線機と分割積層鉄心中間体の模式図である。It is a schematic diagram of the winding machine and the division | stacking laminated core intermediate body which are implementing the 1st winding process which concerns on Embodiment 1 of this invention. 図４のＸ－Ｘ’線における断面図である。FIG. 5 is a cross-sectional view taken along line X-X ′ in FIG. 4. この発明の実施の形態１に係る第二巻線工程を実施中の巻線機と分割積層鉄心中間体の模式図である。It is a schematic diagram of the winding machine and the division | segmentation laminated | stacked iron core intermediate body which are implementing the 2nd winding process which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係るコイルを巻線した分割積層鉄心の断面図である。It is sectional drawing of the division | segmentation laminated | stacked iron core which wound the coil which concerns on Embodiment 1 of this invention. 比較例の鉄心片の板取り配置図である。It is a board layout drawing of the iron core piece of a comparative example. この発明の実施の形態２に係る巻線工程を実施中の巻線機と分割積層鉄心中間体の模式図である。It is a schematic diagram of the winding machine and the division | stacking laminated core intermediate body which are implementing the winding process which concerns on Embodiment 2 of this invention. この発明の実施の形態２に係る回転電機のコイル巻線工程を示すフローチャートである。It is a flowchart which shows the coil winding process of the rotary electric machine which concerns on Embodiment 2 of this invention. この発明の実施の形態３に係る回転電機の構成を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the rotary electric machine which concerns on Embodiment 3 of this invention. この発明の実施の形態３に係る回転電機のコイル巻線工程を示すフローチャートである。It is a flowchart which shows the coil winding process of the rotary electric machine which concerns on Embodiment 3 of this invention. この発明の実施の形態４に回転電機のコイルを巻装した分割積層鉄心の構成を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the division | segmentation laminated | stacked iron core which wound the coil of the rotary electric machine in Embodiment 4 of this invention. この発明の実施の形態５に係る回転電機の構成を示す断面模式図である。It is a cross-sectional schematic diagram which shows the structure of the rotary electric machine which concerns on Embodiment 5 of this invention.
実施の形態１．
　以下、本発明の実施の形態１について、図を用いて説明する。
本明細書において、特に断り無く「軸方向」、「周方向」、「径方向」、「内周側」、「外周側」、「内周面」、「外周面」、「内側」、「外側」というときは、それぞれ、固定子の「軸方向」、「周方向」、「径方向」、「内周側」、「外周側」、「内周面」、「外周面」、「内側」、「外側」をいうものとする。また、「上」、「下」等と、上下関係をいうときは、固定子の中心から離れる方を「上」、固定子の中心に近づく方を「下」とする。 Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings.
In this specification, unless otherwise specified, “axial direction”, “circumferential direction”, “radial direction”, “inner peripheral side”, “outer peripheral side”, “inner peripheral surface”, “outer peripheral surface”, “inner side”, “ “Outside” refers to the “axial direction”, “circumferential direction”, “radial direction”, “inner peripheral side”, “outer peripheral side”, “inner peripheral surface”, “outer peripheral surface”, “inner side” of the stator, respectively. "," Outside ". In addition, when referring to “upper”, “lower”, and the like, the direction away from the center of the stator is “upper”, and the direction closer to the center of the stator is “lower”.
　図１は、本発明の実施の形態１に係る回転電機１００の構成を示す断面模式図である。
回転電機１００は、回転子２と固定子３とからなる。回転子２は、回転軸２１と回転軸２１の外周に配設した永久磁石２２からなる。 FIG. 1 is a schematic cross-sectional view showing a configuration of a rotating electrical machine 100 according to Embodiment 1 of the present invention.
The rotating electrical machine 100 includes a rotor 2 and a stator 3. The rotor 2 includes a rotating shaft 21 and a permanent magnet 22 disposed on the outer periphery of the rotating shaft 21.
　固定子３は、コ字形の分割積層鉄心３１、３２を備える。分割積層鉄心３１は、分割積層ヨーク部３１ａと、分割積層ヨーク部３１ａの長手方向の両端から直角に曲がって同方向に突出する２つの積層ティース部３１ｂ、３１ｃとを備える。同様に、分割積層鉄心３２は、分割積層ヨーク部３２ａと、分割積層ヨーク部３２ａの両端から直角に曲がって同方向に突出する２つの積層ティース部３２ｂ、３２ｃとを備える。分割積層鉄心３１と分割積層鉄心３２は、どちらも同じ構成であるが、本明細書では、以降の説明の都合上、符号は分けて説明する。 The stator 3 includes U-shaped split laminated cores 31 and 32. The divided laminated iron core 31 includes a divided laminated yoke portion 31a and two laminated tooth portions 31b and 31c that are bent at right angles from both longitudinal ends of the divided laminated yoke portion 31a and project in the same direction. Similarly, the divided laminated iron core 32 includes a divided laminated yoke portion 32a and two laminated tooth portions 32b and 32c that are bent at right angles from both ends of the divided laminated yoke portion 32a and project in the same direction. The divided laminated iron core 31 and the divided laminated iron core 32 have the same configuration, but in the present specification, the reference numerals are separately described for convenience of the following explanation.
　積層ティース部３１ｂと積層ティース部３１ｃとの間に、積層ティース部３１ｂに巻線されるコイル４１ｂと積層ティース部３１ｃに巻線されるコイル４１ｃとを収納するスロットＳ１が形成される。同様に、積層ティース部３２ｂと積層ティース部３２ｃとの間に、積層ティース部３２ｂに巻線されるコイル４２ｂと積層ティース部３２ｃに巻線されるコイル４２ｃとを収納するスロットＳ２が形成される。なお、コイル４１ｂ、４１ｃ、４２ｂ、４２ｃは、絶縁用のインシュレータ５を介して積層ティース部３１ｂ、３１ｃ、３２ｂ、３２ｃに巻線されている。 Between the laminated tooth portion 31b and the laminated tooth portion 31c, a slot S1 for accommodating the coil 41b wound around the laminated tooth portion 31b and the coil 41c wound around the laminated tooth portion 31c is formed. Similarly, a slot S2 for accommodating the coil 42b wound around the laminated tooth portion 32b and the coil 42c wound around the laminated tooth portion 32c is formed between the laminated tooth portion 32b and the laminated tooth portion 32c. . The coils 41b, 41c, 42b, and 42c are wound around the laminated tooth portions 31b, 31c, 32b, and 32c via the insulating insulator 5.
　分割積層鉄心３１と分割積層鉄心３２は、積層ティース部３１ｂと積層ティース部３２ｂとが直線状に並んで向き合い、積層ティース部３１ｃと積層ティース部３２ｃとが直線状に並んで向き合うように、回転子２を間に挟んで配置されている。積層ティース部３１ｂ、３１ｃ、３２ｂ、３２ｃの回転子２側の自由端部の磁気吸引部３１ｂｚ、３１ｃｚ、３２ｂｚ、３２ｃｚは、それぞれ、回転子２の外周面に沿ってこれに対向している。 The divided laminated iron core 31 and the divided laminated iron core 32 are rotated so that the laminated tooth portion 31b and the laminated tooth portion 32b face each other in a straight line, and the laminated tooth portion 31c and the laminated tooth portion 32c face each other in a straight line. It arrange | positions on both sides of the child 2. The magnetic attraction portions 31bz, 31cz, 32bz, and 32cz at the free ends of the laminated teeth portions 31b, 31c, 32b, and 32c on the rotor 2 side are opposed to the rotor 2 along the outer peripheral surface thereof.
　磁気吸引部３１ｂｚ、３１ｃｚ、３２ｂｚ、３２ｃｚの外周面には、軸方向に延在する蟻溝状の凹部３１ｂｚｒ、３１ｃｚｒ、３２ｂｚｒ、３２ｃｚｒ（樹脂部材結合部）を備える。凹部３１ｂｚｒと凹部３２ｂｚｒに樹脂製の固定部材７ｂ（樹脂部材）の両端部を軸方向に嵌合して、積層ティース部３１ｂと積層ティース部３２ｂとを互いに固定する。同様に、凹部３１ｃｚｒと凹部３２ｃｚｒに樹脂製の固定部材７ｃの両端部を軸方向に嵌合して、周方向に隣り合う積層ティース部３１ｃと積層ティース部３２ｃを互いに固定する。なお、凹部３１ｂｚｒ、３１ｃｚｒ、３２ｂｚｒ、３２ｃｚｒに替えて凸部とし、固定部材側に凹部を設けても良い。 The outer peripheral surfaces of the magnetic attraction portions 31bz, 31cz, 32bz, and 32cz are provided with dovetail recesses 31bzr, 31czr, 32bzr, and 32czr (resin member coupling portions) extending in the axial direction. The both ends of a resin-made fixing member 7b (resin member) are fitted in the recess 31bzr and the recess 32bzr in the axial direction, and the laminated tooth portion 31b and the laminated tooth portion 32b are fixed to each other. Similarly, both end portions of the resin fixing member 7c are fitted in the recess 31czr and the recess 32czr in the axial direction, and the laminated tooth portion 31c and the laminated tooth portion 32c adjacent in the circumferential direction are fixed to each other. In addition, it may replace with the recessed parts 31bzr, 31czr, 32bzr, 32czr, and it may be set as a convex part, and a recessed part may be provided in the fixing member side.
　次に、回転電機１００の固定子３の製造方法を、図を用いて説明する。
図２は、回転電機１００の固定子３の製造方法を示すフローチャートである。
図３は、連続する１枚の電磁鋼板Ｐから複数の鉄心片６を切り抜く時の配置を示す図である。
図４は、第一巻線工程を実施中の巻線機８と分割積層鉄心中間体３０の模式図である。
図５は、図４のＸ－Ｘ’線における断面図である。 Next, a method for manufacturing the stator 3 of the rotating electrical machine 100 will be described with reference to the drawings.
FIG. 2 is a flowchart showing a method for manufacturing the stator 3 of the rotating electrical machine 100.
FIG. 3 is a view showing an arrangement when a plurality of core pieces 6 are cut out from one continuous electromagnetic steel sheet P. FIG.
FIG. 4 is a schematic diagram of the winding machine 8 and the divided laminated core intermediate 30 that are performing the first winding process.
FIG. 5 is a cross-sectional view taken along line XX ′ of FIG.
　まず、最初に、分割積層鉄心３１、３２の元になる分割積層鉄心中間体３０の製造工程を説明する。
図３に示す鉄心片６は、分割積層鉄心３１、３２の各積層を構成する板状の部材である。電磁鋼板Ｐから鉄心片６を切り抜く時点では、鉄心片６は、帯状の一枚の部材である。 First, the manufacturing process of the divided laminated core intermediate 30 that is the basis of the divided laminated cores 31 and 32 will be described.
The iron core piece 6 shown in FIG. 3 is a plate-like member constituting each lamination of the divided laminated iron cores 31 and 32. At the time of cutting out the iron core piece 6 from the electromagnetic steel sheet P, the iron core piece 6 is a strip-shaped member.
　鉄心片６は、図３に示す配置で、電磁鋼板Ｐから必要枚数切り抜かれる（鉄心片製造工程：Ｓ００１）。鉄心片６は、長手方向中央に分割ヨーク部６ａを備え、分割ヨーク部６ａの長手方向の両端に薄肉部６ｓで連結されたティース部６ｂとティース部６ｃとを備える。鉄心片６の分割ヨーク部６ａとティース部６ｂ、６ｃとの間にはＶ字形状の切り欠き６ｖが設けられていて、相互に繋がっている部分が薄肉部６ｓである。 The required number of iron core pieces 6 is cut out from the electromagnetic steel sheet P in the arrangement shown in FIG. 3 (iron core piece manufacturing process: S001). The iron core piece 6 includes a split yoke portion 6a at the center in the longitudinal direction, and includes a tooth portion 6b and a tooth portion 6c connected to both ends in the longitudinal direction of the split yoke portion 6a by thin-walled portions 6s. A V-shaped notch 6v is provided between the divided yoke portion 6a of the iron core piece 6 and the tooth portions 6b and 6c, and the portion connected to each other is a thin portion 6s.
　鉄心片６は、分割ヨーク部６ａと２つのティース部６ｂ、６ｃの長手方向が全て電磁鋼板Ｐの送り方向（長手方向＝電磁鋼板Ｐの圧延方向Ｄ）と一致する。 In the iron core piece 6, the longitudinal direction of the split yoke portion 6a and the two teeth portions 6b, 6c all coincide with the feeding direction of the electromagnetic steel sheet P (longitudinal direction = rolling direction D of the electromagnetic steel sheet P).
　本実施の形態では電磁鋼板Ｐの圧延方向Ｄに対して垂直方向に鉄心片６を２個並列配置しているが。鉄心片６の長手方向と電磁鋼板Ｐの圧延方向Ｄを揃えていれば、並列配置する数はそれ以上でも良い。 In this embodiment, two core pieces 6 are arranged in parallel in the direction perpendicular to the rolling direction D of the electromagnetic steel sheet P. As long as the longitudinal direction of the iron core pieces 6 and the rolling direction D of the electromagnetic steel sheet P are aligned, the number of parallel arrangements may be more.
　次に、切り抜いたままの帯状の鉄心片６を、そのまま軸方向に積層し、図示しない積層面の上下に設けた凹凸部をカシメて各鉄心片６間を結合し、分割積層鉄心中間体３０を製造する（積層工程：Ｓ００２）。鉄心片６の分割ヨーク部６ａが積層された部分が、図４に示す分割積層鉄心中間体３０の分割積層ヨーク部３０ａとなり、分割積層ヨーク部３０ａは、図１に示す分割積層鉄心３１、３２の分割積層ヨーク部３１ａ、３２ａとなる。同様に、鉄心片６のティース部６ｂ、６ｃが積層された部分が、分割積層鉄心中間体３０の積層ティース部３０ｂ、３０ｃとなり、積層ティース部３０ｂ、３０ｃは、分割積層鉄心３１、３２の積層ティース部３１ｂ、３１ｃ、３２ｂ、３２ｃとなる。 Next, the strip-shaped iron core pieces 6 that have been cut out are laminated in the axial direction as they are, and the concave and convex portions provided on the upper and lower sides of the laminated surface (not shown) are caulked to connect the iron core pieces 6 to each other. Is manufactured (lamination step: S002). A portion where the divided yoke portion 6a of the core piece 6 is laminated becomes a divided laminated yoke portion 30a of the divided laminated core intermediate body 30 shown in FIG. 4, and the divided laminated yoke portion 30a is divided into divided laminated cores 31, 32 shown in FIG. The divided laminated yoke portions 31a and 32a are formed. Similarly, the portion where the tooth portions 6 b and 6 c of the iron core piece 6 are laminated becomes the laminated tooth portions 30 b and 30 c of the divided laminated iron core intermediate 30, and the laminated teeth portions 30 b and 30 c are laminated of the divided laminated iron cores 31 and 32. Teeth portions 31b, 31c, 32b, and 32c are formed.
　次に、絶縁体成型工程（Ｓ００３）を実施する。絶縁体成型工程では、コイル４０（コイル４１ｂ、４１ｃ、４２ｂ、４２ｃ）と分割積層鉄心中間体３０（分割積層鉄心３１、３２）とを電気的に絶縁するインシュレータ５を積層ティース部３０ｂ、３０ｃの外周に一体成型する。 Next, an insulator molding step (S003) is performed. In the insulator molding step, the insulator 5 that electrically insulates the coil 40 ( coils 41b, 41c, 42b, 42c) and the divided laminated core intermediate 30 (divided laminated iron cores 31, 32) from the laminated teeth 30b, 30c. Molded integrally on the outer periphery.
　次に、分割積層鉄心中間体３０にコイル４０を巻線する巻線機８の構成を説明する。
図４に示す巻線機８は、分割積層鉄心中間体３０を固定するための回転位置決め機構８０と、コイル４０となるワイヤ４１を繰り出すフライヤ８８とを備える。回転位置決め機構８０は、円盤状のベース部８１と、く字形ブロック８２と、分割積層ヨーク部３０ａをベース部８１との間に挟んで固定する天板８３及び２本のネジ８４を備える。 Next, the configuration of the winding machine 8 that winds the coil 40 around the divided laminated core intermediate 30 will be described.
The winding machine 8 shown in FIG. 4 includes a rotary positioning mechanism 80 for fixing the divided laminated core intermediate 30 and a flyer 88 for feeding out the wire 41 that becomes the coil 40. The rotational positioning mechanism 80 includes a disk-shaped base portion 81, a square block 82, a top plate 83 that fixes the divided laminated yoke portion 30 a between the base portion 81 and two screws 84.
　回転位置決め機構８０のベース部８１は、回転軸Ａを中心として図４の矢印Ａ１の方向に回転可能である。く字形ブロック８２は、ベース部８１の盤面上の所定の位置に、分割積層鉄心中間体３０の分割積層ヨーク部３０ａを位置決めするために使用する。ノックピン８５は、２つの積層ティース部３０ｂ、３０ｃにコイル４０を連続して巻線する際に、２つのコイル４０を接続する渡り線をガイドするために使用される。ノックピン８５は、ベース部８１に２本設置される。ノックピン８５は、分割積層鉄心中間体３０の分割積層ヨーク部３０ａと積層ティース部３０ｂ、３０ｃが折り曲げ可能に連結されている積層薄肉連結部３ｓの外周側に設置されている。フライヤ８８の回転軸Ｂは、回転位置決め機構８０の回転軸Ａに対して直交するように配置され、回転軸Ｂの軸方向ｃに前進及び後退可能である。 The base portion 81 of the rotation positioning mechanism 80 can rotate around the rotation axis A in the direction of the arrow A1 in FIG. The rectangular block 82 is used to position the divided laminated yoke portion 30a of the divided laminated core intermediate body 30 at a predetermined position on the board surface of the base portion 81. The knock pin 85 is used to guide a crossover that connects the two coils 40 when the coil 40 is continuously wound around the two laminated tooth portions 30b and 30c. Two knock pins 85 are installed on the base portion 81. The knock pin 85 is installed on the outer peripheral side of the laminated thin-walled connecting portion 3s in which the divided laminated yoke portion 30a and the laminated tooth portions 30b and 30c of the divided laminated core intermediate body 30 are connected so as to be bendable. The rotation axis B of the flyer 88 is disposed so as to be orthogonal to the rotation axis A of the rotation positioning mechanism 80, and can move forward and backward in the axial direction c of the rotation axis B.
　次に、コイル巻線工程について説明する。
コイル巻線工程は、位置決め固定工程（Ｓ１００）と、第一巻線工程（Ｓ１０１）と、鉄心回転工程と（Ｓ１０２）と、第二巻線工程（Ｓ１０３）と、取り外し工程（Ｓ１０４）とからなる。まず、天板８３の２つのネジ穴に、ネジ８４を通し、く字形ブロック８２のネジ穴に通して分割積層ヨーク部３０ａをベース部８１に対して軸方向（積層方向）に板挟みしてベース部８１に固定する（位置決め固定工程：Ｓ１００）。 Next, the coil winding process will be described.
The coil winding process includes a positioning and fixing process (S100), a first winding process (S101), an iron core rotating process (S102), a second winding process (S103), and a removing process (S104). Become. First, the screws 84 are passed through the two screw holes of the top plate 83, passed through the screw holes of the rectangular block 82, and the divided laminated yoke part 30 a is sandwiched between the base part 81 in the axial direction (stacking direction) and the base It fixes to the part 81 (positioning fixing process: S100).
　このとき、分割積層鉄心中間体３０は、分割積層ヨーク部３０ａの内周側の角部が、く字形ブロック８２の回転軸Ａ側の側面の角部に接触するように配置され、ベース部８１上に位置決めされる。また、このとき、分割積層鉄心中間体３０は、先にコイル４０を巻線する一方の積層ティース部３０ｂの自由端部側がフライヤ８８の回転軸Ｂと対向するように配置され、他方の積層ティース部３０ｃは、反対側を向いている。すなわち、分割積層鉄心中間体３０の長手方向は、フライヤ８８の回転軸Ｂの軸方向と一致する。 At this time, the split laminated core intermediate 30 is arranged such that the corner on the inner peripheral side of the split laminated yoke portion 30a is in contact with the corner on the side surface on the rotation axis A side of the rectangular block 82, and the base portion 81 is provided. Positioned above. Further, at this time, the divided laminated core intermediate 30 is disposed so that the free end portion side of one laminated tooth portion 30b that winds the coil 40 first faces the rotation axis B of the flyer 88, and the other laminated teeth. The part 30c faces the opposite side. That is, the longitudinal direction of the divided laminated core intermediate body 30 coincides with the axial direction of the rotation axis B of the flyer 88.
　次に、積層ティース部３０ｂに対して第一巻線工程（Ｓ１０１）を実施する。
巻線機８のフライヤ８８を回転軸Ｂの軸方向ｃに移動させながら、積層ティース部３０ｂの周囲にフライヤ８８を旋回させ、コイル４０を巻線する。このとき、フライヤ８８の先端が回転する回転面Ｑと、反対側の積層ティース部３０ｃとが干渉することはない。 Next, the first winding step (S101) is performed on the laminated tooth portion 30b.
While the flyer 88 of the winding machine 8 is moved in the axial direction c of the rotary shaft B, the flyer 88 is turned around the laminated tooth portion 30 b to wind the coil 40. At this time, the rotating surface Q on which the tip of the flyer 88 rotates does not interfere with the laminated tooth portion 30c on the opposite side.
　図６は、第二巻線工程を実施中の巻線機８と分割積層鉄心中間体３０の模式図である。積層ティース部３０ｂに対してコイル４０の巻線を終了したら、コイル４０の巻き終わり部分を切断することなく、図４の矢印Ａ１の方向に回転位置決め機構８０を１８０度回転させる（鉄心回転工程：Ｓ１０２）。これにより、図６に示す渡り線４２が、回転位置決め機構８０のベース部８１に備えた２つのノックピン８５の外側に沿って引き回される。 FIG. 6 is a schematic diagram of the winding machine 8 and the divided laminated core intermediate 30 that are performing the second winding process. When the winding of the coil 40 is completed with respect to the laminated tooth portion 30b, the rotational positioning mechanism 80 is rotated 180 degrees in the direction of arrow A1 in FIG. 4 without cutting the winding end portion of the coil 40 (iron rotation process: S102). 6 is routed along the outside of the two knock pins 85 provided in the base portion 81 of the rotational positioning mechanism 80.
　続いて、積層ティース部３０ｃに対して第二巻線工程（Ｓ１０３）を実施する。
巻線機８のフライヤ８８を図６の紙面左右方向に移動させながら、積層ティース部３０ｃの周囲にフライヤ８８を旋回させ、コイル４０を巻線する。フライヤ８８の旋回方向は先の積層ティース部３０ｂに巻いた方向とは同方向とする。第一巻線工程と同様に、フライヤ８８の先端が回転する回転面Ｑと、反対側の積層ティース部３０ｃとが干渉することはない。 Subsequently, the second winding step (S103) is performed on the laminated tooth portion 30c.
While the flyer 88 of the winding machine 8 is moved in the left-right direction in FIG. 6, the flyer 88 is turned around the laminated tooth portion 30 c to wind the coil 40. The turning direction of the flyer 88 is the same as the direction wound around the laminated teeth portion 30b. Similar to the first winding step, the rotating surface Q on which the tip of the flyer 88 rotates does not interfere with the opposite laminated tooth portion 30c.
　このように、分割積層鉄心中間体３０が有する２つの積層ティース部３０ｂ、３０ｃにコイル４０を巻線した後、分割積層鉄心中間体３０を回転位置決め機構８０から取り外す（取り外し工程：Ｓ１０４）。 As described above, after the coil 40 is wound around the two laminated tooth portions 30b and 30c of the divided laminated core intermediate body 30, the divided laminated core intermediate body 30 is removed from the rotational positioning mechanism 80 (removal step: S104).
　図７は、コイルを巻線した分割積層鉄心３１の断面図である。
　次に、回転位置決め機構８０から取り外した巻線済みの分割積層鉄心中間体３０の積層ティース部３０ｂと積層ティース部３０ｃとを、積層薄肉連結部３ｓにおいて、鉄心片６の切り欠き６ｖが閉じる方向にコ字形形状となるように折り曲げて（折り曲げ工程：Ｓ００４）分割積層鉄心３１を得る。そして、同様の工程を繰り返して、コイルを巻線した分割積層鉄心３２を得る。 FIG. 7 is a cross-sectional view of a split laminated iron core 31 wound with a coil.
Next, the laminated tooth portion 30b and the laminated tooth portion 30c of the coiled laminated laminated core intermediate body 30 removed from the rotational positioning mechanism 80 are closed in the direction in which the notch 6v of the iron core piece 6 is closed at the laminated thin-walled connecting portion 3s. Are folded so as to form a U-shape (bending step: S004) to obtain the divided laminated iron core 31. And the same process is repeated and the division | segmentation laminated | stacked iron core 32 which wound the coil is obtained.
　次に、分割積層鉄心３１と分割積層鉄心３２を互いに積層ティース部側が対向するように配置し、凹部３１ｂｚｒと凹部３２ｂｚｒに固定部材７ｂを嵌合して固定する。強固に固定するには接着剤を用いても良い。同様に反対側の凹部３１ｃｚｒと凹部３２ｃｚｒに固定部材７ｃを嵌合して固定する。このようにして、２つの分割積層鉄心３１、３２は、固定部材７ｂ、７ｃを介して一定間隔を保持して互いに結合された固定子３となる（結合工程：Ｓ００５）。固定子３の内周側に回転子２を挿入し、図示しないフレームに収容して回転電機１００を得る。 Next, the divided laminated iron core 31 and the divided laminated iron core 32 are arranged so that the laminated tooth portions face each other, and the fixing member 7b is fitted and fixed to the concave portion 31bzr and the concave portion 32bzr. An adhesive may be used to firmly fix. Similarly, the fixing member 7c is fitted and fixed to the concave portion 31czr and the concave portion 32czr on the opposite side. In this way, the two divided laminated iron cores 31 and 32 become the stator 3 that is coupled to each other while maintaining a predetermined interval via the fixing members 7b and 7c (coupling step: S005). The rotor 2 is inserted into the inner peripheral side of the stator 3 and accommodated in a frame (not shown) to obtain the rotating electrical machine 100.
　次に、本実施の形態において使用する鉄心片６の形状に関する効果について説明する。
図８は、比較例としての、従来の一体の鉄心片６０ｂを電磁鋼板Ｐ２から板取する際の配置を示す図である。鉄心片６０ｂの形状は、本実施の形態１に係る鉄心片６を薄肉連結部６１で折り曲げた形状と同じとする。 Next, the effect regarding the shape of the iron core piece 6 used in this Embodiment is demonstrated.
FIG. 8 is a diagram showing an arrangement when a conventional integral iron core piece 60b is cut from the electromagnetic steel sheet P2 as a comparative example. The shape of the iron core piece 60 b is the same as the shape obtained by bending the iron core piece 6 according to the first embodiment at the thin-walled connecting portion 61.
　鉄心片６を図３の電磁鋼板Ｐから板取りする際、図に示すような配置で板取りすると、一枚の鉄心片６の面積をＡ０とし、電磁鋼板Ｐの長手方向の長さをＬ１、長手方向に垂直方向の長さをＬ２とすると、材料の有効使用率（２Ａ０／Ｌ１×Ｌ２）は、５９％となる。 When the iron core piece 6 is picked up from the electromagnetic steel sheet P shown in FIG. 3, the area of one iron core piece 6 is A0 and the length in the longitudinal direction of the magnetic steel sheet P is L1. If the length in the direction perpendicular to the longitudinal direction is L2, the effective usage rate of the material (2A0 / L1 × L2) is 59%.
一方、図８に示すような配置で鉄心片６０ｂを板取りすると、一枚の鉄心片６０ｂの面積は、鉄心片６と同じＡ０である。この場合、電磁鋼板Ｐ２の長手方向の長さをＬ３、長手方向に垂直方向の長さをＬ４とすると、材料の有効使用率（２Ａ０／Ｌ３×Ｌ４）は、５２％となる。このように、図３に示す配置で板取りした方が、高い材料使用率が得られる。 On the other hand, when the iron core piece 60 b is cut off in the arrangement as shown in FIG. 8, the area of one iron core piece 60 b is A0 which is the same as that of the iron core piece 6. In this case, when the length in the longitudinal direction of the electromagnetic steel sheet P2 is L3 and the length in the direction perpendicular to the longitudinal direction is L4, the effective usage rate of the material (2A0 / L3 × L4) is 52%. As described above, a higher material usage rate can be obtained by cutting the plate in the arrangement shown in FIG.
　また、本実施の形態に係る鉄心片６では、ティース部６ｂ、６ｃと分割ヨーク部６ａの双方において、磁束が流れる方向Ｊ１～Ｊ３と電磁鋼板Ｐの圧延方向Ｄとが一致している。一般的に、圧延方向と、圧延方向と直交する方向では、圧延方向の方が磁気抵抗が小さく、鉄心に生じる鉄損を低減することができる。したがって、ティース部とヨーク部のうちの片方しか圧延方向Ｄに一致させることができない比較例の鉄心片６０ｂと比べて、鉄心片６では、電磁鋼板Ｐの圧延方向Ｄと鉄心片６の長手方向を一致させて配置することで、分割積層鉄心３１、３２を通る磁束の流れがスムーズになり、良好な磁気特性が得られる。 Further, in the iron core piece 6 according to the present embodiment, the magnetic flux flowing directions J1 to J3 coincide with the rolling direction D of the electromagnetic steel sheet P in both the tooth portions 6b and 6c and the divided yoke portion 6a. Generally, in the rolling direction and the direction orthogonal to the rolling direction, the rolling direction has a smaller magnetic resistance, and iron loss generated in the iron core can be reduced. Therefore, in comparison with the iron core piece 60b of the comparative example in which only one of the teeth part and the yoke part can coincide with the rolling direction D, the iron core piece 6 has a rolling direction D of the electromagnetic steel sheet P and a longitudinal direction of the iron core piece 6. By arranging them so as to coincide with each other, the flow of magnetic flux through the divided laminated iron cores 31 and 32 becomes smooth, and good magnetic properties can be obtained.
　本発明の実施の形態１に係る回転電機の固定子、回転電機、回転電機の固定子の製造方法によれば、分割積層鉄心中間体３０の分割積層ヨーク部３０ａと、積層ティース部３０ｂ、３０ｃとがコイル４０巻線時において真っ直ぐに帯状に配置されるので、一方の積層ティース部にコイル４０を巻線する時に、フライヤ８８の先端が回転する回転面Ｑと、反対側の積層ティース部３０ｃとが干渉することがない。これにより、フライヤ８８の作動範囲に制約を受けないため、簡単に積層ティース部３０ｂ、３０ｃに整列巻きができ、一つのスロット内に収容される２つのコイル間に隙間が生じず、コイルの占積率を向上でき、固定子３の充填率（固定子３の外形に対して固定子構成部品が占める割合）を高めることができる。また、コイル４０巻線時にフライヤ８８の周囲に障害物が無いので、高速にコイルを巻線できる。また、コイル端末部の接続作業をなくすことができ、安価な回転電機１００の固定子３を得ることができる。 According to the stator for a rotating electrical machine, the rotating electrical machine, and the method for manufacturing a stator for a rotating electrical machine according to Embodiment 1 of the present invention, the split laminated yoke portion 30a of the split laminated core intermediate 30 and the laminated teeth 30b and 30c. Are arranged in a straight belt shape when winding the coil 40, so that when the coil 40 is wound around one laminated tooth portion, the rotating surface Q on which the tip of the flyer 88 rotates and the opposite laminated tooth portion 30c. And will not interfere. As a result, since the operating range of the flyer 88 is not restricted, the laminated teeth 30b and 30c can be easily wound in an aligned manner, and no gap is formed between the two coils housed in one slot. The volume factor can be improved, and the filling rate of the stator 3 (the ratio of the stator components to the outer shape of the stator 3) can be increased. In addition, since there is no obstacle around the flyer 88 when winding the coil 40, the coil can be wound at high speed. Moreover, the connection work of a coil terminal part can be eliminated and the inexpensive stator 3 of the rotary electric machine 100 can be obtained.
　また、固定部材７ｂ、７ｃにより分割積層鉄心３１、３２の磁気吸引部３１ｂｚと３２ｂｚ及び、３１ｃｚと３２ｃｚを相互に固定することで、磁気吸引部の位置精度を向上できる。 Also, the magnetic attracting portions 31bz and 32bz and 31cz and 32cz of the split laminated iron cores 31 and 32 are fixed to each other by the fixing members 7b and 7c, so that the positional accuracy of the magnetic attracting portion can be improved.
　また、２つの積層ティース部３０ｂ、３０ｃにそれぞれ巻線されるコイル４０の間に渡り線４２を切断することなく連続して引き回すことができるので、固定子３及び回転電機１００の生産性を向上できる。 Further, since the crossover wire 42 can be continuously routed between the coils 40 wound around the two laminated tooth portions 30b and 30c, the productivity of the stator 3 and the rotating electrical machine 100 is improved. it can.
実施の形態２．
　以下、本発明の実施の形態２について、図を用いて実施の形態１と異なる部分を中心に説明する。
図９は、巻線工程を実施中の巻線機と分割積層鉄心中間体３０の模式図である。
図１０は、本実施の形態に係る回転電機のコイル巻線工程を示すフローチャートである。
図１０においては、実施の形態１と異なる部分である同時巻線工程のフローチャートのみを示す。
実施の形態１のコイル巻線工程では、１つのフライヤ８８により分割積層鉄心中間体３０が有する２つの積層ティース部３０ｂ、３０ｃに順次、第一巻線工程と第二巻線工程とを行っていたが、本実施の形態では、図９に示すように、２つのフライヤ８８ａ、８８ｂにより２つの積層ティース部３０ｂ、３０ｃに同時にコイル４０の巻線作業を行う（同時巻線工程：Ｓ２０１）。 Embodiment 2. FIG.
Hereinafter, the second embodiment of the present invention will be described with reference to the drawings, focusing on the differences from the first embodiment.
FIG. 9 is a schematic diagram of the winding machine and the split laminated core intermediate 30 that are performing the winding process.
FIG. 10 is a flowchart showing a coil winding process of the rotating electrical machine according to the present embodiment.
In FIG. 10, only the flowchart of the simultaneous winding process which is a different part from Embodiment 1 is shown.
In the coil winding process of the first embodiment, the first winding process and the second winding process are sequentially performed on the two laminated tooth portions 30b and 30c of the divided laminated iron core intermediate 30 by one flyer 88. However, in this embodiment, as shown in FIG. 9, the winding work of the coil 40 is simultaneously performed on the two laminated tooth portions 30b and 30c by the two flyers 88a and 88b (simultaneous winding step: S201).
　フライヤ８８ａ、８８ｂの回転軸Ｂ１、Ｂ２は、回転位置決め機構８０の回転軸Ａに対して直交するように回転位置決め機構８０を挟んで対向して配置され、それぞれ回転軸Ｂ１、Ｂ２の軸方向ｃ１、ｃ２に前進及び後退可能である。 The rotation axes B1 and B2 of the flyers 88a and 88b are arranged opposite to each other with the rotation positioning mechanism 80 interposed therebetween so as to be orthogonal to the rotation axis A of the rotation positioning mechanism 80, and the axial directions c1 of the rotation axes B1 and B2, respectively. , C2 can be moved forward and backward.
　分割積層鉄心中間体３０の回転位置決め機構８０への固定は実施の形態１と同様である。コイル４０巻線時、２つの積層ティース部３０ｂ、３０ｃの自由端部は、それぞれフライヤ８８ａ、８８ｂの回転軸Ｂ１、Ｂ２と対向しており、２つのフライヤ８８ａ、８８ｂにより同時にコイル４０の巻線作業が実施される。同時にコイル４０を巻線後、２つの積層ティース部の巻き終わり部分又は巻き始め部分を結線することで、２つの積層ティース部３０ｂ、３０ｃに巻線したコイル４０同士を接続する。 The fixing of the split laminated core intermediate 30 to the rotational positioning mechanism 80 is the same as in the first embodiment. When winding 40 coils, the free ends of the two laminated tooth portions 30b and 30c are respectively opposed to the rotation axes B1 and B2 of the flyers 88a and 88b, and the coils 40 are simultaneously wound by the two flyers 88a and 88b. Work is carried out. At the same time, after winding the coil 40, the winding end portions or the winding start portions of the two laminated tooth portions are connected to connect the coils 40 wound around the two laminated tooth portions 30b and 30c.
　本発明の実施の形態２に係る回転電機の固定子、回転電機、回転電機の固定子の製造方法によれば、２つのフライヤ８８ａ、８８ｂで２つの積層ティース部３０ｂ、３０ｃに同時にコイル４０を巻線できるので、コイル４０の巻線作業の時間は実施の形態１と比べて半分以上短縮できる。 According to the stator of a rotating electrical machine, the rotating electrical machine, and the stator of a rotating electrical machine according to the second embodiment of the present invention, the coil 40 is simultaneously applied to the two laminated tooth portions 30b and 30c by the two flyers 88a and 88b. Since winding is possible, the winding work time of the coil 40 can be shortened by more than half compared to the first embodiment.
実施の形態３．
　以下、本発明の実施の形態３について、図を用いて実施の形態１と異なる部分を中心に説明する。
図１１は、本発明の実施の形態３に係る回転電機３００の構成を示す断面模式図である。
図１２は、本実施の形態に係る回転電機のコイル巻線工程を示すフローチャートである。
図１２においては、実施の形態１と異なる部分であるモールド工程のフローチャートのみを示す。
実施の形態１の固定子３は、固定部材７ｂ、７ｃにより２つの分割積層鉄心３１、３２を結合していた。本実施の形態では、図１１に示すように、回転電機３００は、樹脂製のモールド部材３０７にて外周をモールドされている（モールド工程：Ｓ３０５）。 Embodiment 3 FIG.
Hereinafter, the third embodiment of the present invention will be described with reference to the drawings, focusing on the differences from the first embodiment.
FIG. 11 is a schematic cross-sectional view showing the configuration of rotating electric machine 300 according to Embodiment 3 of the present invention.
FIG. 12 is a flowchart showing a coil winding process of the rotating electrical machine according to the present embodiment.
In FIG. 12, only the flowchart of the molding process which is a different part from Embodiment 1 is shown.
In the stator 3 of the first embodiment, the two split laminated iron cores 31 and 32 are coupled by the fixing members 7b and 7c. In the present embodiment, as shown in FIG. 11, the rotating electrical machine 300 is molded on the outer periphery with a resin molding member 307 (molding step: S305).
　なお、モールド部材３０７は、図１１のように全体を固定子３０３の全体を覆っても良いし、コイル４１ｂ、４１ｃ、４２ｂ、４２ｃの周囲と、少なくとも分割積層鉄心３１、３２の積層ティース部３１ｂ、３２ｂの自由端部同士と、積層ティース部３１ｃ、３２ｃの自由端部同士とを覆うように成形されていればよい。 Note that the mold member 307 may cover the entire stator 303 as shown in FIG. 11, or the coil teeth 41 b, 41 c, 42 b, 42 c, and at least the laminated teeth 31 b of the divided laminated iron cores 31, 32. , 32b and the free ends of the laminated tooth portions 31c, 32c may be formed so as to cover each other.
　本発明の実施の形態３に係る回転電機の固定子、回転電機、回転電機の固定子の製造方法によれば、モールド部材３０７を分割積層鉄心３１、３２と一体成形するため、分割積層鉄心３１、３２を固定部材７ｂ、７ｃを用いて固定して組み立てる実施の形態１の回転電機１００に比べて、組み立てが容易となり、固定子３０３及び回転電機３００の生産性が良い。また、モールド成形型を用いて高精度な位置出しが行える。 According to the rotating electrical machine stator, the rotating electrical machine, and the rotating electrical machine stator manufacturing method according to Embodiment 3 of the present invention, the mold member 307 is integrally formed with the split laminated cores 31 and 32. , 32 are fixed using the fixing members 7b and 7c, and the assembly is facilitated and the productivity of the stator 303 and the rotating electrical machine 300 is good compared to the rotating electrical machine 100 of the first embodiment. In addition, highly accurate positioning can be performed using a mold.
　また、実施の形態１で固定部材７ｂ、７ｃを嵌合した蟻溝状の凹部３１ｂｚｒ、３１ｃｚｒ、３２ｂｚｒ、３２ｃｚｒに樹脂を充填して一体成形すれば、固定子３０３の剛性と精度を更に増すことができる。 Further, if the dovetail recesses 31bzr, 31czr, 32bzr, and 32czr fitted with the fixing members 7b and 7c in Embodiment 1 are filled with resin and integrally molded, the rigidity and accuracy of the stator 303 are further increased. Can do.
実施の形態４．
　以下、本発明の実施の形態４について、図を用いて実施の形態１と異なる部分を中心に説明する。
図１３（ａ）は、本発明の実施の形態４に係る回転電機のコイルを巻装した分割積層鉄心３３１の構成を示す断面模式図である。
図１３（ｂ）は、図１３（ａ）のＹ－Ｙ’線における拡大断面図である。 Embodiment 4 FIG.
Hereinafter, the fourth embodiment of the present invention will be described with reference to the drawings, focusing on the differences from the first embodiment.
FIG. 13A is a schematic cross-sectional view showing a configuration of a split laminated iron core 331 around which a coil of a rotating electrical machine according to Embodiment 4 of the present invention is wound.
FIG. 13B is an enlarged cross-sectional view taken along the line YY ′ of FIG.
　実施の形態１の分割積層鉄心３１は、分割積層ヨーク部３１ａと積層ティース部３１ｂ、３１ｃとは積層薄肉連結部３ｓにより折り曲げ可能に連結されていたが、本実施の形態では図１３（ａ）、（ｂ）に示すように、分割積層ヨーク部３３１ａと積層ティース部３３１ｂ、３３１ｃは、分割積層鉄心３３１の各積層を構成する薄板状の鉄心片３０６ａと積層ティース部３３１ｂ、３３１ｃの各積層を構成する鉄心片３０６ｂ、３０６ｃ（実際にはそれぞれ二種類有る）とが、それぞれの鉄心片に設けた凹部と凸部をカシメ止めして回転可能に連結されている。 In the divided laminated iron core 31 of the first embodiment, the divided laminated yoke portion 31a and the laminated teeth portions 31b and 31c are connected to each other so as to be bendable by the laminated thin-walled connecting portion 3s, but in this embodiment, FIG. As shown in (b), the divided laminated yoke portion 331a and the laminated teeth portions 331b, 331c are formed by laminating the thin plate-like core pieces 306a and the laminated teeth portions 331b, 331c constituting each laminated laminated iron core 331. The core pieces 306b and 306c (in fact, there are two types of each) that are configured are rotatably connected with the concave portions and the convex portions provided in the respective core pieces being crimped.
　具体的には、図１３（ｂ）に示すように、積層ティース部３３１ｃの鉄心片３０６ｃの下面に凸部３０６ｃｐを設け、交互に積層される分割積層ヨーク部３３１ａの鉄心片３０６ａの上面の凹部３０６ａｒにこの凸部３０６ｃｐをカシメて、回転可能な連結部Ｒを構成している。積層ティース部３３１ｂ、３３１ｃに対してコイル４０（４１ｂ、４１ｃ）を巻線する際は、実施の形態１と同様に、分割積層ヨーク部３３１ａと積層ティース部３３１ｂ、３３１ｃとが帯状に真っ直ぐになるように連結部Ｒを回転させて開くと良い。 Specifically, as shown in FIG. 13B, a convex portion 306cp is provided on the lower surface of the iron core piece 306c of the laminated tooth portion 331c, and the concave portion on the upper surface of the iron core piece 306a of the divided laminated yoke portions 331a that are alternately laminated. The convex portion 306cp is caulked to 306ar to constitute a rotatable connecting portion R. When the coil 40 (41b, 41c) is wound around the laminated tooth portions 331b, 331c, the divided laminated yoke portion 331a and the laminated tooth portions 331b, 331c are straightened like a band as in the first embodiment. It is good to rotate and open the connecting portion R.
　本発明の実施の形態４に係る回転電機の固定子、回転電機、回転電機の固定子の製造方法によれば、コイル４０巻線後に各積層ティース部３３１ｂ、３３１ｃをコの字形の状態に戻す際の取り扱いが、実施の形態１の薄肉部の折り曲げに比べて容易になり、回転電機の固定子および回転電機の生産性を更に向上することができる。 According to the rotating electric machine stator, the rotating electric machine, and the rotating electric machine stator manufacturing method according to Embodiment 4 of the present invention, the laminated tooth portions 331b and 331c are returned to the U-shaped state after the 40 windings of the coil. The handling at the time becomes easier than the bending of the thin portion of the first embodiment, and the stator of the rotating electrical machine and the productivity of the rotating electrical machine can be further improved.
実施の形態５．
　以下、本発明の実施の形態５について、図を用いて実施の形態１と異なる部分を中心に説明する。
図１４は、本発明の実施の形態５に係る回転電機５００の構成を示す断面模式図である。
実施の形態１の固定子３は、２個の分割積層鉄心３１、３２で構成されていたが、本実施の形態では、図１４に示すように、固定子５０３は、３個のコの字形の分割積層鉄心３３１、３３２、３３３を有する。その他の構成は実施の形態１と同様である。 Embodiment 5 FIG.
Hereinafter, the fifth embodiment of the present invention will be described with reference to the drawings, focusing on the differences from the first embodiment.
FIG. 14 is a schematic cross-sectional view showing a configuration of rotating electric machine 500 according to Embodiment 5 of the present invention.
The stator 3 of the first embodiment is configured by the two divided laminated cores 31 and 32. However, in this embodiment, the stator 503 has three U-shapes as shown in FIG. Divided laminated iron cores 331, 332, and 333. Other configurations are the same as those of the first embodiment.
　本発明の実施の形態５に係る回転電機５００の固定子５０３、回転電機５００、回転電機５００の固定子５０３の製造方法によれば、実施の形態１よりも積層ティース部の数を増やし、多極化することで、回転電機５００に生じるトルクリップルを低減できる。 According to the manufacturing method of stator 503 of rotating electrical machine 500, rotating electrical machine 500, and stator 503 of rotating electrical machine 500 according to Embodiment 5 of the present invention, the number of laminated tooth portions is increased as compared with Embodiment 1, and thus multipolarization is achieved. Thus, torque ripple generated in the rotating electric machine 500 can be reduced.
　尚、本発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。 It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

Claims (10)

  1. 鉄心片を積層して形成された複数のコ字形の分割積層鉄心と、
    前記分割積層鉄心の積層ティース部に巻線したコイルとからなる回転電機の固定子において、
    前記分割積層鉄心は、
    分割積層ヨーク部と、
    前記分割積層ヨーク部の両端に、２つの前記積層ティース部とを備え、
    ２つの前記積層ティース部と前記分割積層ヨーク部は、それぞれの前記積層ティース部の長手方向と、前記分割積層ヨーク部の長手方向とが同方向となって、前記分割積層ヨーク部の長手方向の両端に、それぞれの前記積層ティース部が真っ直ぐに並ぶ状態から、２つの前記積層ティース部が、前記分割積層ヨーク部に対して、前記固定子の内側に向く状態となるように折り曲げ可能又は回転可能に連結されている回転電機の固定子。     A plurality of U-shaped split laminated iron cores formed by laminating iron core pieces;
    In the stator of the rotating electric machine consisting of a coil wound around the laminated tooth portion of the divided laminated iron core,
    The divided laminated iron core is
    A split laminated yoke part;
    The two laminated teeth portions are provided at both ends of the divided laminated yoke portion,
    The two laminated teeth portions and the divided laminated yoke portions have a longitudinal direction of each laminated tooth portion and a longitudinal direction of the divided laminated yoke portions in the same direction, and the longitudinal directions of the divided laminated yoke portions are the same. From the state where the laminated tooth portions are arranged straight at both ends, the two laminated tooth portions can be bent or rotated so as to face the inner side of the stator with respect to the divided laminated yoke portion. The stator of the rotating electrical machine connected to the.
  2. ２つの前記積層ティース部は、それぞれ前記積層ティース部の自由端部であって、前記固定子の内側に挿入される回転子と対向する磁気吸引部の外周面に、軸方向に延在する樹脂部材結合部を有し、
    周方向に隣り合う２つの前記分割積層鉄心の、周方向に隣り合う前記積層ティース部同士が、前記樹脂部材結合部に固定された樹脂部材によって互いに固定されている請求項１に記載の回転電機の固定子。     Each of the two laminated tooth portions is a free end portion of the laminated tooth portion, and the resin extends in the axial direction on the outer peripheral surface of the magnetic attraction portion facing the rotor inserted inside the stator. Having a member coupling part,
    The rotating electrical machine according to claim 1, wherein the laminated tooth portions adjacent in the circumferential direction of the two divided laminated iron cores adjacent in the circumferential direction are fixed to each other by a resin member fixed to the resin member coupling portion. Stator.
  3. 前記樹脂部材は、モールド部材である請求項２に記載の回転電機の固定子。 The stator of the rotating electrical machine according to claim 2, wherein the resin member is a mold member.
  4. 前記分割積層ヨーク部と前記積層ティース部とは、積層薄肉連結部によって折り曲げ可能に連結されている請求項１から請求項３のいずれか1項に記載の回転電機の固定子。 The stator of a rotating electrical machine according to any one of claims 1 to 3, wherein the divided laminated yoke portion and the laminated tooth portion are connected to each other so as to be bendable by a laminated thin-walled connecting portion.
  5. 前記分割積層ヨーク部と前記積層ティース部とは、前記分割積層ヨーク部および前記積層ティース部を構成する鉄心片の積層面に設けられた凹凸部を嵌合した連結部によって回転可能に連結されている請求項１から請求項４のいずれか１項に記載の回転電機の固定子。 The divided laminated yoke portion and the laminated tooth portion are rotatably connected by a connecting portion that fits an uneven portion provided on a laminated surface of an iron core piece constituting the divided laminated yoke portion and the laminated tooth portion. The stator of the rotary electric machine according to any one of claims 1 to 4.
  6. 請求項１から請求項５のいずれか１項に記載の回転電機の固定子と、
    前記固定子の内側に回転可能に挿入された回転子とからなる回転電機。     A stator for a rotating electrical machine according to any one of claims 1 to 5,
    A rotating electrical machine comprising a rotor rotatably inserted inside the stator.
  7. 電磁鋼板から、分割ヨーク部と前記分割ヨーク部の両端にティース部とが、前記分割ヨーク部の長手方向と前記ティース部の長手方向とが同方向となるように、帯状にまっすぐに配置した鉄心片を切り抜く鉄心片製造工程と、
    複数の前記鉄心片を積層し、前記分割ヨーク部が積層された積層分割ヨーク部と、２つの前記ティース部が積層された２つの積層ティース部が、連結部によって折り曲げまたは回転可能に積層された分割積層鉄心中間体を形成する積層工程と、
    前記分割積層鉄心中間体を、巻線機に、前記巻線機のフライヤの回転軸の軸方向と、前記分割積層鉄心中間体の長手方向が一致するように位置決め固定する位置決め固定工程と、
    一方の前記積層ティース部にコイルを巻線する第一巻線工程と、
    他方の前記積層ティース部にコイルを巻線する第二巻線工程と、
    前記コイルを巻線した前記分割積層鉄心中間体の２つの前記積層ティース部を前記連結部において、同方向に折り曲げてコ字形の分割積層鉄心を形成する折り曲げ工程と、
    隣り合う複数の前記分割積層鉄心の前記積層ティース部の自由端部同士を互いに固定する結合工程とを有する回転電機の固定子の製造方法。     An iron core that is straightly arranged in a strip shape from a magnetic steel sheet so that a split yoke portion and teeth portions at both ends of the split yoke portion are in the same direction as the longitudinal direction of the split yoke portion and the longitudinal direction of the tooth portion. Iron core piece manufacturing process of cutting out pieces,
    A plurality of the iron core pieces are laminated, and a laminated divided yoke portion in which the divided yoke portions are laminated, and two laminated tooth portions in which the two tooth portions are laminated, are laminated by a connecting portion so as to be bent or rotated. A laminating step for forming a split laminated core intermediate;
    Positioning and fixing step of positioning and fixing the divided laminated core intermediate body to the winding machine so that the axial direction of the rotary shaft of the flyer of the winding machine and the longitudinal direction of the divided laminated core intermediate body coincide with each other;
    A first winding step of winding a coil around one of the laminated tooth portions;
    A second winding step of winding a coil on the other laminated tooth portion;
    A bending step of bending the two laminated tooth portions of the divided laminated core intermediate body wound with the coil in the same direction to form a U-shaped divided laminated core;
    The manufacturing method of the stator of a rotary electric machine which has the joint process of mutually fixing the free ends of the lamination teeth part of a plurality of adjacent division lamination iron cores.
  8. 前記第一巻線工程と、前記第二巻線工程との間に、
    前記分割積層鉄心中間体を１８０度回転させる、鉄心回転工程を有する請求項７に記載の回転電機の固定子の製造方法。     Between the first winding step and the second winding step,
    The manufacturing method of the stator of the rotary electric machine according to claim 7 which has an iron core rotation process which rotates said split laminated iron core intermediate body 180 degrees.
  9. 前記第一巻線工程と、前記第二巻線工程とを、２つの前記フライヤにより同時に実行する同時巻線工程を有する請求項７に記載の回転電機の固定子の製造方法。 The method for manufacturing a stator of a rotating electrical machine according to claim 7, further comprising a simultaneous winding step in which the first winding step and the second winding step are simultaneously performed by the two flyers.
  10. 前記鉄心片の長手方向は、前記電磁鋼板の圧延方向と一致している請求項７から請求項９のいずれか１項に記載の回転電機の固定子の製造方法。 The method of manufacturing a stator for a rotating electrical machine according to any one of claims 7 to 9, wherein a longitudinal direction of the iron core piece coincides with a rolling direction of the electromagnetic steel sheet.
PCT/JP2016/068529 2015-06-24 2016-06-22 Rotating electrical machine stator, rotating electrical machine, rotating electrical machine stator production method WO2016208629A1 (en)

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