WO2016208629A1 - Stator de machine électrique tournante, machine électrique tournante, et procédé de fabrication de stator de machine électrique tournante - Google Patents

Stator de machine électrique tournante, machine électrique tournante, et procédé de fabrication de stator de machine électrique tournante 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
English (en)
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/ja
Priority to AU2016284404A priority patent/AU2016284404B2/en
Publication of WO2016208629A1 publication Critical patent/WO2016208629A1/fr

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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

L'invention concerne une machine électrique tournante qui est pourvue : d'une partie culasse stratifiée divisée (31a) ; et de deux parties dents stratifiées (31b, 31c) sur les deux extrémités de la partie culasse stratifiée divisée (31a). Dans les deux parties dents stratifiées (31b, 31c) et la partie culasse divisée (31a), la direction longitudinale de chaque partie dent stratifiée (31b, 31c) et la direction longitudinale de la partie culasse stratifiée divisée (31a) sont la même direction, et à partir d'un état dans lequel les deux parties dents stratifiées (31b, 31c) sont alignées en ligne droite sur les deux extrémités de la partie culasse stratifiée divisée (31a) dans la direction longitudinale, les deux parties dents stratifiées (31b, 31c) sont accouplées d'une manière courbable ou d'une manière rotative à la partie culasse stratifiée divisée (31a) de façon à être dans un état en regard du côté interne du stator (3).
PCT/JP2016/068529 2015-06-24 2016-06-22 Stator de machine électrique tournante, machine électrique tournante, et procédé de fabrication de stator de machine électrique tournante WO2016208629A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1716302.3A GB2553242A (en) 2015-06-24 2016-06-22 Rotating electrical machine stator, rotating electrical machine, rotating electrical machine stator production method
JP2017524946A JP6334823B2 (ja) 2015-06-24 2016-06-22 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、回転電機の製造方法
AU2016284404A AU2016284404B2 (en) 2015-06-24 2016-06-22 Rotating electrical machine stator, rotating electrical machine, rotating electrical machine stator production method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-126234 2015-06-24
JP2015126234 2015-06-24

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WO2016208629A1 true WO2016208629A1 (fr) 2016-12-29

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PCT/JP2016/068529 WO2016208629A1 (fr) 2015-06-24 2016-06-22 Stator de machine électrique tournante, machine électrique tournante, et procédé de fabrication de stator de machine électrique tournante

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JP (1) JP6334823B2 (fr)
AU (1) AU2016284404B2 (fr)
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JPWO2016208629A1 (ja) 2017-09-14
TW201711344A (zh) 2017-03-16

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