WO2013153594A1 - Procédé de fabrication de stator et dispositif de formation de boîtier de bobine - Google Patents

Procédé de fabrication de stator et dispositif de formation de boîtier de bobine Download PDF

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Publication number
WO2013153594A1
WO2013153594A1 PCT/JP2012/059657 JP2012059657W WO2013153594A1 WO 2013153594 A1 WO2013153594 A1 WO 2013153594A1 JP 2012059657 W JP2012059657 W JP 2012059657W WO 2013153594 A1 WO2013153594 A1 WO 2013153594A1
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WIPO (PCT)
Prior art keywords
diameter
segment group
annular segment
annular
coil
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Application number
PCT/JP2012/059657
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English (en)
Japanese (ja)
Inventor
泰之 平尾
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トヨタ自動車株式会社
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Publication date
Application filed by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to PCT/JP2012/059657 priority Critical patent/WO2013153594A1/fr
Publication of WO2013153594A1 publication Critical patent/WO2013153594A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0414—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils
    • H02K15/0421—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils consisting of single conductors, e.g. hairpins
    • H02K15/0428—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils consisting of single conductors, e.g. hairpins characterised by the method or apparatus for simultaneously twisting a plurality of hairpins

Definitions

  • the present invention relates to a method for manufacturing a segment coil used for a stator of a motor and the like, and relates to a technique for creating a coil cage by arranging segment coils formed in a substantially U shape in an annular shape.
  • Patent Document 1 discloses an invention relating to a coil end spacer, a segment type armature, a segment alignment method, and a twist forming method of a segment open end.
  • a coil end spacer made of a ring-shaped strip is used.
  • the coil end spacer has a main wall portion arranged in an annular shape, a plurality of protrusions formed so as to protrude from one end of the main wall portion, and is formed between the protrusions to hold the segment. It has the 1st partition ridge and the 2nd partition ridge which protrude in the slit and the inner peripheral surface and outer peripheral surface of a main wall part, respectively.
  • Patent Document 2 discloses an invention related to an annular alignment jig and an annular alignment method for coil segments.
  • An annular alignment jig having a substantially hat-like shape has a cylindrical small-diameter portion having a large number of insertion recesses at a constant pitch at one end, a step portion having a diameter larger than the small-diameter portion, and a large-diameter portion formed in a disk shape. It consists of.
  • Patent Document 3 discloses an invention relating to an annular alignment device and an annular alignment method for coil segments.
  • a cylindrical alignment annular pallet is provided with a plurality of storage holes opened upward at a predetermined pitch along the outer periphery.
  • the alignment ring pallet is installed in the alignment guide portion so as to be rotatable about a cylindrical axis.
  • the alignment guide part has a storage groove provided in an arc shape so as to extend from the outer diameter of the annular alignment pallet, and one of the leg parts of the coil segment is inserted into the storage hole and the other is stored.
  • the coil segments are aligned by being inserted into the groove and rotating the aligned annular pallet with index feed.
  • the coil segment is reliably supplied by providing a feed mechanism for feeding the coil segment to the alignment annular pallet and the alignment guide portion.
  • a segment assembly for one layer or two layers is formed by arranging the segments in an annular shape.
  • it is desirable that the outer peripheral surface of the first segment assembly is arranged so that no gap is formed between the inner peripheral surface of the second segment assembly.
  • an object of the present invention is to provide a stator manufacturing method and a coil cage forming apparatus that improve the assembling property of the segment assembly.
  • a coil cage forming apparatus has the following characteristics.
  • the coil rod forming device has a plurality of radial support rods that can be advanced and retracted in the radial direction, A holding means for inserting the support rods one by one between segment gaps formed on a cylindrical outer peripheral surface of an annular segment group composed of a plurality of coil segments arranged in an annular shape, and suspending and holding the annular segment group A diameter expanding means for expanding the diameter of the annular segment group from a design value; a diameter reducing means for reducing the diameter of the annular segment group expanded by the diameter expanding means to a predetermined diameter; It is characterized by providing.
  • the inter-segment gap referred to here is a gap formed on the cylindrical outer peripheral surface of the annular segment group, and includes a straight advance portion of a coil segment formed in a substantially U shape and a straight advance portion of an adjacent coil segment. The interval formed between them.
  • the annular segment group in which the plurality of coil segments are arranged in an annular shape is suspended and held by the holding means by inserting the support rod between the segment gaps,
  • the diameter of the annular segment group expanded by the diameter expanding means, overlapped with another annular segment group, and expanded by the diameter reducing means is reduced to a predetermined diameter. Since the annular segment group is formed by overlapping the coil segments, the diameter can be increased or decreased. By utilizing this, one annular segment group can be superimposed on the other annular segment group to form a coil cage.
  • the diameter expanding means has an outer inclined arm formed thinner than the inter-segment gap arranged radially, and the outer inclined arm is The annular segment group is provided with an outer slope that becomes lower from the inner circumference side toward the outer circumference side, and the diameter of the annular segment group received from the support rod of the holding means is increased by the outer slope, and the diameter reducing means Has an inner inclined plate arranged radially, the inner inclined plate includes an inner inclination that becomes lower from the outer peripheral side to the inner peripheral side of the annular segment group, and an elevating means, and the elevating means It is preferable to reduce the diameter of the annular segment group by raising the inner inclined plate.
  • the outer inclined arm used for the diameter expanding means is formed thinner than the inter-segment gap formed on the cylindrical outer peripheral surface of the annular segment group. For this reason, the annular segment group can be held even if the annular segment group is expanded in diameter and the inter-segment gap becomes narrow. Moreover, it has the outer side inclination which becomes low toward an outer peripheral side from an inner peripheral side. For this reason, the annular segment group is passed from the support rod to the outer inclined arm, and the coil segment moves to the outer diameter side of the outer diameter inclined arm, whereby the annular segment group is expanded in diameter.
  • the inner inclined plate used for the diameter reducing means has an inner inclination that becomes lower from the outer peripheral side to the inner peripheral side of the annular segment group. For this reason, when the annular segment group is passed from the outer inclined arm, each of the coil segments moves inward along the inner diameter inclination and is reduced in diameter. Moreover, since it has a raising means, it becomes possible to pass an annular segment group from an outer side inclination arm to an inner side inclination plate by raising an inner side inclination plate.
  • the aforementioned inter-segment gap is preferably formed with a sufficiently thin outer inclined arm in consideration of the clearance, and as a result, the annular segment group can be transferred while avoiding interference between the outer inclined arm and the inner inclined plate. It becomes possible.
  • the inner diameter of the annular segment group is enlarged / reduced by the diameter expanding means and the diameter reducing means, and one annular segment group can be overlapped with the other annular segment group to form a coil cage.
  • the inclined surface for expanding and reducing the diameter of the annular segment group in this way the device configuration can be simplified and the space required for the device can be given a margin. .
  • the support rod of the holding means is formed to be narrower than the gap between the segments, and the diameter-expanding means has a tip reduced in diameter in a substantially bullet shape.
  • An annular ring is formed, and the annular ring group is inserted into the annular segment group while the annular segment group is held on the support rod of the holding means.
  • the diameter of the segment group is increased, and the diameter-reducing means has a U-shaped arm that is radially arranged and is capable of moving back and forth in the radial direction, and the U-shaped arm is arranged on the outer periphery of the annular segment group. It is preferable to reduce the diameter of the annular segment group by moving from the side toward the inner peripheral side.
  • the holding means since the holding means uses the thin pin as the support rod and uses the expansion ring as the diameter expanding means, the expansion ring is held by the holding means and the annular segment group is held. The coil segment is moved to the outer diameter side of the annular segment group. At this time, since the annular segment group is supported by the thin support rod, the annular segment group can be supported even in a situation where the inter-segment gap is narrow. That is, the diameter of the annular segment group can be increased while the coil segment moves on the support rod.
  • the diameter-reducing means uses U-shaped arms arranged radially, and the U-shaped arms are moved from the outer peripheral side to the inner peripheral side of the annular segment group.
  • the coil segment is pushed into the inner groove of the arm, and as a result, the diameter of the annular segment group is reduced. Therefore, the inner diameter of the annular segment group is enlarged and reduced by the diameter expanding means and the diameter reducing means, and one annular segment group can be overlapped with the other annular segment group to form a coil rod.
  • the coil segment can be reliably moved.
  • the predetermined diameter is equal to the design value.
  • the diameter can be set to a dimension that can be inserted into the slot of the stator core by the diameter reducing means, the annular segment groups that are overlapped for insertion into the slot later can be obtained. It is possible to contribute to shortening the lead time without requiring a process for further reducing the gap.
  • a stator manufacturing method has the following characteristics.
  • a stator manufacturing method for forming a coil cage by arranging a plurality of substantially U-shaped coil segments in an annular shape an annular segment comprising the plurality of coil segments arranged in an annular shape
  • a support rod of the holding means is inserted between the segment gaps formed on the cylindrical outer peripheral surface of the first annular segment group, and the first annular segment group is suspended and held by the holding means.
  • the diameter of the first annular segment group is expanded from the design value by the diameter expanding means, and the expanded first annular segment group is overlapped with the second annular segment group, and the diameter reducing means
  • the coil rod formed of a plurality of the annular segment groups is formed by reducing the diameter of the first annular segment group to a predetermined diameter.
  • the annular segment group in which the plurality of coil segments are arranged in an annular shape expands the diameter of one annular segment group by the diameter expanding means, and the other annular segment group Then, one annular segment group whose diameter has been expanded by the diameter reducing means is reduced to a predetermined diameter. Since the annular segment group is formed by overlapping the coil segments, the diameter can be increased or decreased. By utilizing this, one annular segment group can be overlapped with the other annular segment group to form a coil cage, and a stator using this coil cage can be manufactured.
  • the diameter-increasing means is radially arranged, and the outer inclined arm is formed thinner than the inter-segment gap formed on the cylindrical outer peripheral surface of the annular segment group.
  • the outer inclined arm has an outer inclination that decreases from an inner peripheral side to an outer peripheral side of the annular segment group, and receives the first annular segment group from the support rod of the holding means.
  • the coil segment is moved in the radial direction by the outer inclination to expand the first annular segment group, and the diameter reducing means has inner inclined plates arranged radially, and the inner inclined plate Has an inner slope that decreases from the outer peripheral side to the inner peripheral side of the annular segment group, and a raising means, and the inner slope plate rises by the raising means, To diameter of the serial first annular segment group, it is preferable.
  • the outer inclined arm used on the diameter expanding means and disposed on the radiation is formed with a thin inter-segment gap formed on the cylindrical outer peripheral surface of the annular segment group.
  • the annular segment group can be held even if the annular segment group is expanded in diameter and the inter-segment gap becomes narrow.
  • it has the outer side inclination which becomes low toward an outer peripheral side from an inner peripheral side. For this reason, the annular segment group is passed from the support rod to the outer inclined arm, and the coil segment moves to the outer diameter side of the outer diameter inclined arm, whereby the annular segment group is expanded in diameter.
  • the inner inclined plate used for the diameter reducing means has an inner inclination that becomes lower from the outer peripheral side to the inner peripheral side of the annular segment group. For this reason, when the annular segment group is passed from the outer inclined arm, each of the coil segments moves inward along the inner diameter inclination and is reduced in diameter. Moreover, since it has a raising means, it becomes possible to pass an annular segment group from an outer side inclination arm to an inner side inclination plate by raising an inner side inclination plate. As described above, since the outer inclined arm is thinly formed in consideration of the clearance between the segment gaps, the annular segment group can be transferred while avoiding interference between the outer inclined arm and the inner inclined plate.
  • the inner diameter of the annular segment group is enlarged / reduced by the diameter expanding means and the diameter reducing means, and one annular segment group is overlapped with the other annular segment group to form a coil rod, which can be used for the stator.
  • the inclined surface for expanding and reducing the diameter of the annular segment group in this way the device configuration can be simplified and the space required for the device can be given a margin. .
  • the support rods included in the holding means are arranged radially and are held so as to be movable back and forth in a radial direction, and the support rods are cylinders of the annular segment group.
  • the diameter-expanding means is formed narrower than the inter-segment gap formed on the outer peripheral surface, and has an expansion ring formed in a cylindrical shape whose tip is reduced in a substantially bullet shape, and the support rod of the holding means has the above-mentioned While holding the first annular segment group, the first annular segment group is expanded in diameter by inserting the expansion ring inside the first annular segment group, and the diameter reducing means is arranged radially.
  • the first annular segment To diameter bets group it is preferred.
  • the expansion ring is used as the annular segment group in the holding means.
  • the coil segment is inserted while being held, and the coil segment is moved to the outer diameter side of the annular segment group.
  • the annular segment group can be supported even in a situation where the inter-segment gap is narrow. That is, the diameter of the annular segment group can be increased while the coil segment moves on the support rod.
  • the diameter-reducing means uses U-shaped arms arranged radially, and the U-shaped arms are moved from the outer peripheral side to the inner peripheral side of the annular segment group.
  • the coil segment is pushed into the inner groove of the arm, and as a result, the diameter of the annular segment group is reduced. Therefore, the inner diameter of the annular segment group is enlarged and reduced by the diameter expanding means and the diameter reducing means, and one annular segment group is overlapped with the other annular segment group to form a coil rod, which can be used for the stator.
  • a substantially bullet-shaped expansion ring for expanding the diameter and using a U-shaped arm for reducing the diameter, the coil segment can be reliably moved.
  • the predetermined diameter is equal to the design value.
  • the size can be set so as to be inserted into the slot of the stator core by the diameter reducing means. For this reason, it is possible to contribute to shortening the lead time without requiring a step of further reducing the gap between the annular segment groups that are overlapped for insertion into the slot later.
  • FIG. 1 It is a top view of a stator of a 1st embodiment. It is an expansion perspective view by the side of a coil end partial lead of a stator of a 1st embodiment. It is a top view of a segment of a 1st embodiment.
  • FIG. 1 It is the schematic of the assembly process of a stator of 1st Embodiment, (a) is a perspective view of a stator core, (b) is a perspective view provided with an insulator in a stator core, (c) is a perspective view of a segment, (D) is a cross-sectional view showing a state where a segment is inserted into the stator core, and (e) is a cross-sectional view showing a state where the segment is welded.
  • FIG. 3 is a cross-sectional view of a state in which the in-slot conductor portion is inserted in the stator core slot according to the first embodiment.
  • FIG. 3 is an enlarged cross-sectional view of a slot portion in a state where an in-slot conductor portion enters a slot of a stator core according to the first embodiment.
  • It is a perspective view of the annular segment group of a 1st embodiment.
  • It is a perspective view of a segment coil of a 1st embodiment.
  • FIG. 2 is a side sectional conceptual view of the assembly apparatus according to the first embodiment, in which an outer inclined arm portion is brought close to a suspended cuff. It is side surface sectional drawing of an assembly apparatus of 1st Embodiment, and it is a mode that the cyclic
  • FIG. 1 is a plan view of the stator according to the first embodiment.
  • FIG. 2 is an enlarged perspective view of the stator 10 on the coil end partial lead side.
  • the stator 10 has a stator core 20 and a segment coil 30.
  • a stator core 20 formed by laminating electromagnetic steel plates having a substantially cylindrical shape has teeth 21 formed so as to protrude to the inner peripheral side, and slots 22 in which segments 31 described later are accommodated between adjacent teeth 21. It has a configuration to be provided.
  • the number of teeth 21 is 48, and the number of slots 22 is also 48.
  • Ribs 23 and bolt holes 23 a are provided on the outer peripheral side of the stator core 20. And it is the structure which can attach a motor cover etc. using this.
  • An insulator 25 having an insulating property is inserted into the slot 22.
  • the insulator 25 is accommodated in the slot 22 in a substantially U-shape and is in a state of wrapping the in-slot conductor portion 31 b of the segment coil 30 to ensure insulation between the segment coil 30 and the stator core 20.
  • a state shown in FIG. 7 to be described later is a final shape of the insulator 25, and the inner peripheral side of the stator core 20 is folded and pressed by the wedge paper 33.
  • FIG. 3 shows a plan view of the segment 31.
  • a segment 31 is formed by edgewise bending a flat conductor D into a substantially U shape.
  • the segment 31 is a part constituting the segment coil 30.
  • the segment 31 has three parts, and includes an in-slot conductor portion 31b inserted into the slot 22 of the stator core 20, a lead tip portion 31a protruding from the end face of the stator core 20 on the lead side of the stator 10, and an anti-lead portion 31c.
  • the lead tip portion 31a is referred to as a first side lead portion 31aA and a second side lead portion 31aB separately.
  • the in-slot conductor 31b is referred to as a first-side in-slot conductor 31bA and a second-in-slot conductor 31bB.
  • the anti-lead portion 31c is composed of a crank portion 31e, a first-side oblique side portion 31dA, and a second-side oblique side portion 31dB.
  • a peeled portion (not shown) that is peeled off is provided at the tips of the first side lead portion 31aA and the second side lead portion 31aB.
  • the segment 31 is arranged in an annular shape by an aligner described later.
  • a state in which the segments 31 are arranged in an annular shape before being inserted into the stator core 20 is referred to as an annular assembly 32.
  • the segment coil 30 is formed by inserting the annular assembly 32 into the slot 22 of the stator core 20 and twisting the lead tip 31a to form a coil.
  • the stator core 20 provided with the segment coil 30 is the stator 10 shown in FIGS. 1 and 2.
  • An external connection terminal 40 is joined to the segment coil 30.
  • the external connection terminal 40 has a function of being electrically connected to a battery (not shown) mounted on the vehicle.
  • FIG. 4 shows an outline of the assembly process of the stator 10.
  • FIG. 4A is a perspective view of the stator core 20. The perspective view which equipped the stator core 20 with the insulator 25 at (b) is shown.
  • a perspective view of the segment 31 is shown in FIG.
  • FIG. 4D is a sectional view showing a state where the segment 31 is inserted into the stator core 20. A state in which the segment 31 is welded to (e) is shown in a sectional view. Note that the perspective view shown in FIG. 4 is simplified in shape for explanation.
  • the segment 31 shown in FIG. 4C is inserted into the slot 22 formed in the stator core 20 shown in FIG. 4A with the insulator 25 inserted as shown in FIG. 4B.
  • FIG. 5 shows a flowchart of the assembly process of the stator 10.
  • S ⁇ b> 1 “straight conductor straightening and cutting” is performed. Since the flat conductor D is wound around a bobbin (not shown), the flat conductor D is unwound and trimmed to a required length.
  • S2 “segment formation” is performed. The flat conductor D is edgewise bent, and a crank portion 31e is formed using a die (not shown) to obtain a substantially U-shaped segment 31.
  • S3 “segment alignment” is performed.
  • the segment 31 is arranged in a cylindrical shape by combining the crank portions 31e of the segment 31 so that ten first-side in-slot conductors 31bA or ten second-side in-slot conductors 31bB can be accommodated in the slots 22 of the stator core 20.
  • a coil 30 is formed. Details will be described later.
  • the first layer conductor portion 31b1, the second layer conductor portion 31b2, the third layer conductor portion 31b3, the fourth layer conductor portion 31b4, and the fifth layer conductor portion 31b5 are arranged from the inner peripheral side of the stator core 20.
  • FIG. 6 is a cross-sectional view showing a state in which the in-slot conductor portion 31 b enters the slot 22 of the stator core 20.
  • FIG. 7 shows an enlarged cross-sectional view of a portion of the slot 22 in a state where the in-slot conductor portion 31b is inserted in the slot 22 of the stator core 20.
  • FIG. 7 is an enlarged view of a portion A shown in FIG.
  • the wedge paper 33 is inserted into the innermost peripheral side of the stator core 20 in a state where ten in-slot conductor portions 31 b of the segment 31 are inserted into the slots 22.
  • the wedge paper 33 is held by being stretched by a convex portion 21 a provided at the tip of the tooth 21 so as to protrude into the slot 22.
  • the wedge paper 33 has a function of pressing the tip of the bent insulator 25 and serves as a spacer that eliminates a gap in the slot 22.
  • the segment coil 30 is fixed so that the segment coil 30 does not move with respect to the stator 10 due to vibration transmitted from the vehicle body or the like when the stator 10 is operated by including the varnish in the segment coil 30.
  • FIG. 8 shows a perspective view of the annular segment group CS.
  • the annular segment group CS includes a plurality of segments 31 arranged in an annular shape.
  • a plurality of annular segment groups CS are formed as an assembly of the annular assembly 32.
  • the annular assembly 32 of the first embodiment uses five annular segment groups CS.
  • the annular segment group CS is arranged on the innermost periphery from the innermost side, the first assembly CS1, the second assembly CS2, the third assembly CS3, the fourth assembly CS4, the fifth assembly CS5, and the outermost assembly. It will be referred to as a sixth assembly CS6 to be arranged.
  • the first assembly CS1 and the sixth assembly CS6 use 24 segments 31, the first assembly CS1 serves as the first layer conductor 31b1, the sixth assembly CS6 serves as the tenth layer conductor 31b10, and the slot 22 Placed inside.
  • the second assembly CS2 to the fifth assembly CS5 are formed in an annular shape using 48 segments 31.
  • the second assembly CS2 is the second layer conductor 31b2 and the third layer conductor 31b3, the third assembly CS3 is the fourth layer conductor 31b4 and the fifth layer conductor 31b5, and the fourth assembly CS4 is the sixth layer.
  • the conducting wire portion 31b6 and the seventh layer conducting wire portion 31b7 the fifth assembly CS5 is arranged in the slot 22 as the eighth layer conducting wire portion 31b8 and the ninth layer conducting wire portion 31b9. Accordingly, the first assembly CS1 and the sixth assembly CS6 form one layer of the slot 22, and the second assembly CS2 to the fifth assembly CS5 form two layers of the slot 22.
  • the annular segment group CS includes a lead side CSA formed by aligning the lead tips 31a of the segment 31, and an anti-lead side CSB formed by overlapping the anti-lead portion 31c of the segment 31.
  • the gap formed on the cylindrical surface forming the outer periphery of the annular segment group CS will be referred to as an inter-segment gap CSC.
  • FIG. 9 is a perspective view of the annular assembly 32.
  • the annular assembly 32 includes a lead side 32A and an anti-lead side 32B.
  • the lead side 32A is an open end, and the lead tip portion 31a is aligned.
  • the anti-lead side 32B is configured by overlapping the anti-lead portion 31c of the segment 31.
  • the annular assembly 32 is formed by sequentially superposing the first assembly CS1 to the sixth assembly CS6.
  • FIG. 10 shows a side view of the assembling apparatus 100.
  • the assembling apparatus 100 includes a support base 114 supported by a base 111 and a moving base 113 that can be moved up and down, and an upper plate 112 that includes an outer inclined arm portion 140.
  • a center shaft 115 is provided at the center of the moving base 113, and an alignment table 130, a center post 125, and an inner inclined plate 120 are provided on the base side of the center shaft 115.
  • the moving base 113 is provided with a raising means 135.
  • the inner inclined plate 120 includes a plurality of thin plates 121 having inclined surfaces 121a formed so as to be lowered toward the center shaft 115 as shown in FIG.
  • the plate 121 is radially arranged with the center shaft 115 as a center, and the inclined surface 121a of the plate 121 is lowered toward the center shaft 115 side.
  • the plate 121 is fixed to a columnar center post 125.
  • the alignment table 130 is disposed below the center post 125 so as to be movable up and down, and is provided with a staircase 131.
  • a disc base 126 is provided on the lower surface of the center post 125.
  • the alignment table 130 includes an inner peripheral surface 132 that slides on the sliding surface 125 a of the center post 125, and is configured to move up and down with respect to the center post 125. Note that the lifting mechanism of the alignment table 130 is not shown.
  • the disk pedestal 126 is fixed to the upper surface of the moving base 113.
  • the center shaft 115, the inner inclined plate 120, the center post 125, and the alignment table 130 formed on the moving base 113 are also raised and lowered.
  • the outer inclined arm portion 140 disposed at the center of the upper plate 112 is formed by radially arranging a plurality of outer inclined arms 141.
  • the outer inclined arm 141 is provided with an inclined surface 141 a that is inclined toward the outer peripheral side, and is formed sufficiently thin with respect to the inter-segment gap CSC of the annular segment group CS like the inner inclined plate 120.
  • FIG. 20 shows a partial plan view of the outer inclined arm portion 140.
  • the outer inclined arm 141 is attached to the distal end of a support arm 142 that is radially arranged, and the support arm 142 is held at one end by a support pin 144.
  • the support pin 144 is guided by the crank groove 143, and rotates the disk 145 to advance and retract the support arm 142 in the radial direction of the disk 145. Therefore, the outer inclined arm 141 supported by the support arm 142 also has a function of moving forward and backward in the radial direction of the disk 145.
  • FIG. 21 is a plan view of the suspended cuff 150.
  • the suspended cuff 150 is provided with a support rod 151 held by a disk 152.
  • the support rod 151 is supported by the disk 152 so as to be movable in the radial direction of the disk 152, and has a function of supporting the annular segment group CS by being inserted into the inter-segment gap CSC.
  • a part of the support rod 151 is inserted into the inter-segment gap CSC of the annular segment group CS at the forward end of the support rod 151, and the annular segment group CS can be supported by the suspended cuff 150.
  • the support rod 151 is removed from the inter-segment gap CSC at the retracted end of the support rod 151, and the suspended cuff 150 can be moved without interfering with the annular segment group CS.
  • FIG. 12 to 19 are conceptual side sectional views of the assembling apparatus 100 as in FIG.
  • the procedure for superimposing the annular segment groups CS will be described with reference to the drawings. 11 to 19, only a part of the annular segment group CS, the suspended cuff 150, the outer inclined arm portion 140, the inner inclined plate 120, and the like is illustrated for explanation.
  • the sixth assembly CS6 is conveyed to the sky above the outer inclined arm portion 140 by the suspended cuff 150. Thereafter, in FIG. 12, the suspended cuff 150 is close to the outer inclined arm portion 140, and in FIG. 13, the support rod 151 moves to the retracted end, so that the annular segment group CS is moved to the outer inclined arm 141. Delivered. The annular segment group CS moves to the outer peripheral side while being guided by the inclined surface 141a provided on the outer inclined arm 141. In FIG. 14, the fifth assembly CS ⁇ b> 5 is conveyed by the suspended cuff 150. Again, the fifth assembly CS5 is transported to the sky above the outer inclined arm portion 140 and disposed on the inner peripheral side of the sixth assembly CS6.
  • the support rod 151 is moved to the retracted end, and the fifth assembly CS ⁇ b> 5 is passed from the support rod 151 to the outer inclined arm 141.
  • the fifth assembly CS5 is disposed on the inner peripheral side of the sixth assembly CS6 and moves to the outer periphery.
  • FIG. 16 further shows a state where the fourth assembly CS4 is conveyed by the suspended cuffs 150 on the inner peripheral side of the fifth assembly CS5.
  • the first assembly CS1 to the sixth assembly CS6 are disposed on the outer inclined arm 141.
  • the first assembly CS1 to the sixth assembly CS6 are in a state where the diameter is increased.
  • the outer inclined arm portion 140 is advanced to the inner diameter side, and the inner peripheral surface of the first assembly CS ⁇ b> 1 is brought into contact with the outer peripheral surface of the center post 125.
  • the inner inclined plate 120 and the center post 125 are raised with respect to the outer inclined arm portion 140. Accordingly, the first assembly CS1 to the sixth assembly CS6 are transferred from the outer inclined arm 141 to the inclined surface 121a of the plate 121.
  • the alignment stand 130 is raised.
  • the first assembly CS1 to the sixth assembly CS6 are aligned on the staircase 131 to align the height of the annular segment group CS, thereby forming the annular assembly 32.
  • the annular assembly 32 arranged on the staircase 131 is fixed by a holder (not shown) and is carried to the next process. Then, it is inserted into the stator core 20.
  • annular alignment device of the annular assembly 32 of the first embodiment has the above-described configuration, the following operations and effects are achieved.
  • the assembly device 100 for the annular assembly 32 has support rods 151 that can be moved back and forth in the radial direction and are provided in a plurality of radial shapes, and an annular segment group CS composed of segments 31 arranged in an annular shape.
  • a support rod 151 is inserted one by one into the inter-segment gap CSC formed on the outer peripheral surface of the cylinder, and holding means for hanging and holding the annular segment group CS, and an expansion for expanding the diameter of the annular segment group CS beyond the design value.
  • it includes a diameter means and a diameter reducing means for reducing the diameter of the annular segment group CS expanded by the diameter expanding means to a design value.
  • the diameter-expanding means has an outer inclined arm 141 that is arranged in a radial pattern and is thinned with a clearance from the inter-segment gap CSC.
  • the outer inclined arm 141 is outer peripheral from the inner peripheral side of the annular segment group CS.
  • the annular segment group CS is received from the support rod 151 of the holding means, and the annular segment group CS is expanded by the inclined surface 141a.
  • the diameter reducing means is an inner inclined plate arranged radially.
  • the inner inclined plate 120 includes an inclined surface 121a that decreases from the outer peripheral side to the inner peripheral side of the annular segment group CS, and a rising means 135, and the rising means 135 causes the inner inclined plate 120 to rise.
  • the diameter of the annular segment group CS is reduced.
  • FIG. 22 shows a side view of the segment being supported by the support rod.
  • FIG. 23 the side view of a mode that a segment is supported by the support rod and diameter-expanded is shown.
  • the adjacent segments 31 are referred to as a first segment 31A and a second segment 31B for convenience.
  • the first segment 31A and the second segment 31B are supported by the outer inclined arm 141, respectively. Since the outer inclined arms 141 are formed in a radial shape, the second distance d2 between the outer inclined arms 141 shown in FIG. 23 is wider than the first distance d1 between the outer inclined arms 141 shown in FIG. It has become. That is, the position of the supported segment 31 is also changed. As a result, the second width x2, which is the distance between the outer ends of the lead tips 31a of the first segment 31A and the second segment 31B shown in FIG. 23, is wider than the first width x1 shown in FIG.
  • the segments 31 constituting the annular segment group CS supported by the suspended cuff 150 are simply overlapped. Therefore, for example, as shown in FIG. 13, when the annular segment group CS is moved to the outer peripheral side, the diameter of the annular segment group CS is increased as shown in FIGS. 22 and 23. That is, the width increases from the first width x1 to the second width x2, and there are fewer overlapping portions in terms of the relationship between the first segment 31A and the second segment 31B. Since the annular segment group CS can be expanded in this way, for example, as shown in FIG. 14, when the sixth assembly CS6 is expanded and held by the outer inclined arm 141, it has a predetermined dimension. The fifth assembly CS5 can be easily inserted into the sixth assembly CS6.
  • the first segment 31A and the second segment 31B can be moved from the state shown in FIG. 22 to FIG. 23 because the thickness of the outer inclined arm 141 inserted into the inter-segment gap CSC is sufficiently thin. It is because it has been. Further, after this, when the annular segment group CS is passed from the outer inclined arm 141 to the inner inclined plate 120, the outer inclined arm 141 is designed to be thin and the inner inclined plate 120 is also designed to be thin.
  • the outer inclined arm 141 and the inner inclined plate 120 can be arranged at an interval of the gap CSC, and the smooth annular segment group CS can be transferred.
  • the annular segment groups CS are stacked one after another as shown in FIG. 16, and the annular segment group CS is transferred from the outer inclined arm portion 140 to the inner inclined plate 120 as the diameter reducing means as shown in FIG. 23, the interval between the annular segment groups CS expanded as shown in FIG. 22 is narrowed as shown in FIG. 22, and the width of the leading end portion 31a arranged outside the first segment 31A and the second segment 31B is the first design value.
  • the diameter can be reduced to a width x1.
  • the annular assembly 32 can be formed using a plurality of annular segment groups CS.
  • the fifth assembly CS5 of the design value is inserted into the sixth assembly CS6 whose diameter is increased as shown in FIG. 14, so that there is no interference when the annular segment groups CS are overlapped with each other, and the diameter is reduced later. Therefore, it is not necessary to design the gap between the sixth assembly CS6 and the fifth assembly CS5. That is, it is possible to improve the assembling property of the annular segment group CS without sacrificing the space factor in the slot 22 when inserted into the stator core 20.
  • the segment 31 is formed by bending a flat conductor D.
  • a general bending process it is difficult to increase the shape accuracy due to the influence of a springback or the like even when a mold is used for the process.
  • it is necessary to perform the processing in a plurality of times which may be affected by an increase in cost or an extension of the lead time.
  • the annular segment group CS is configured by simply combining the segments 31, it is further difficult to obtain the shape accuracy of the annular segment group CS.
  • considerable clearance between the annular segment groups CS is required. If the clearance is not provided, it is necessary to use a jig that can give a predetermined accuracy in the superposition, which increases the cost.
  • the diameter of one annular segment group CS is expanded and the assembly procedure for assembling the other annular segment group CS is performed. Since there is no need to provide a clearance between the annular segment groups CS, the shape accuracy of the segment 31 need not be increased unnecessarily only for assembly. Of course, when the annular segment groups CS are overlapped with each other, a jig for increasing the shape accuracy is not required, which leads to cost reduction of the equipment.
  • the method of assembling the annular segment group CS of the second embodiment differs from the method of assembling the annular segment group CS of the first embodiment in the configuration of the assembly apparatus and the assembly procedure.
  • FIG. 24 shows a side view of the suspended cuff 150 of the second embodiment.
  • FIG. 25 is a side view showing how the expansion ring 170 is inserted.
  • FIG. 26 is a side view showing how the annular segment group is conveyed to the alignment table.
  • FIG. 27 is a side view showing how the expansion ring 170 is removed. Since the suspended cuff 150 is almost the same as the configuration of the first embodiment, a description thereof will be omitted. However, the support rod 151 of the suspended cuff 150 is sufficiently thin with respect to the inter-segment gap CSC. Since the annular alignment jig 160 is not directly related to the present invention, its configuration is not particularly mentioned. However, the annular alignment jig 160 is a jig used for arranging the segments 31 in a cylindrical shape and forming the annular segment group CS. A different one is used for each of the first assembly CS1 to the sixth assembly CS6.
  • the expansion ring 170 has a taper portion 170a and a body portion 170b, and is a jig formed in a substantially shell shape.
  • the expansion ring 170 is arranged on the inner peripheral side of the annular segment group CS and has a function of expanding the annular segment group CS.
  • the tapered portion 170a has a tapered shape that gradually increases in diameter from the tip portion having a smaller diameter than the design value of the annular segment group CS to the body portion 170b.
  • the alignment table 180 includes a cylindrical portion 180b and a staircase portion 180a.
  • the outer diameter of the cylindrical portion 180b is provided such that the diameter of the first assembly CS1 becomes a design value when the inner diameter of the first assembly CS1 and the cylindrical portion 180b come into contact with each other.
  • the staircase portion 180a abuts on the lead side CSA of the annular segment group CS and is formed in a staircase shape so as to align the height of the annular segment group CS. This is because, when the lead side CSA of the annular assembly 32 is twisted, the segment 31 is configured such that the lead tips 31a are radially arranged as shown in FIGS. Therefore, the length of the lead tip portion 31a is set to be shorter for the segment 31 arranged on the outer peripheral side of the stator 10.
  • the staircase portion 180a of the alignment table 180 has a staircase shape. It is comprised so that it may have a cross section.
  • FIG. 28 shows a partial plan view of the reduced diameter cuff.
  • the reduced diameter cuff 190 has a structure similar to that of the outer inclined arm portion 140, and one end of the reduced diameter cuff rod 191 is supported by the disk 192 so as to be movable in the radial direction.
  • a pin 191 c provided at one end of the reduced diameter cuff rod 191 It is configured to be guided and moved by the cam groove 193 of the disk 192.
  • the other end of the reduced diameter cuff rod 191 is provided with two claw portions 191b and a U-shaped groove 191a formed therebetween.
  • the U-shaped groove 191 a is configured to guide the in-slot conductor portion 31 b of the plurality of segments 31.
  • the reduced diameter cuff rod 191 moves forward and backward, and can pressurize the annular segment group CS in the radial direction when it is on the forward side, and does not interfere with the annular segment group CS when it is at the retracted end. You can evacuate.
  • the annular segment group CS formed by the annular alignment jig 160 is moved forward by the support rod 151 of the suspension cuff 150, so that the annular segment group CS is moved by the suspension cuff 150. Make it possible.
  • the annular segment group CS is transferred from the annular alignment jig 160 by the suspension cuff 150, and the expansion ring 170 is inserted into the inner peripheral side of the annular segment group CS.
  • the expansion ring 170 is provided with a plurality of slits for preventing interference with the support rod 151.
  • the first assembly CS1 and the second assembly CS2 are already arranged on the alignment table 180, and the third assembly CS3 is conveyed by the suspension ring 150 with the expansion ring 170 expanded in diameter. Yes.
  • the third assembly CS3 expanded by the expansion ring 170 with respect to the diameters of the first assembly CS1 and the second assembly CS2 arranged on the alignment table 180 and having the design values. It is. As shown in FIG. 27, after the third assembly CS3 is arranged on the alignment table 180, the reduced diameter cuff rod 191 of the reduced diameter cuff 190 is advanced inward in the radial direction to reduce the diameter of the third assembly CS3. In this way, the third assembly CS3 can be overlaid on the first assembly CS1 and the second assembly CS2.
  • the aligning device for the annular assembly 32 according to the second embodiment has the above-described configuration, the same operation and effect as the aligning device for the annular assembly 32 according to the first embodiment are exhibited.
  • the assembly device 100 of the annular assembly 32 of the second embodiment has support rods 151 that can be moved back and forth in the radial direction and are provided in a plurality of radial shapes, and an annular segment group CS consisting of segments 31 arranged in an annular shape.
  • a support rod 151 is inserted one by one into the inter-segment gap CSC formed on the outer peripheral surface of the cylinder, and holding means for hanging and holding the annular segment group CS, and an expansion for expanding the diameter of the annular segment group CS beyond the design value.
  • the holding means uses a thin pin that is thinly formed in consideration of the clearance from the inter-segment gap CSC to the support rod 151, and the diameter expanding means is an expansion formed in a cylindrical shape whose tip is reduced in a substantially bullet shape.
  • the ring segment group CS is expanded by inserting the expansion ring 170 inside the annular segment group CS in a state having the ring 170 and holding the annular segment group CS on the support rod 151 of the holding means.
  • Has a reduced diameter cuff rod 191 that is radially arranged and is capable of moving back and forth in the radial direction. By moving the reduced diameter cuff rod 191 from the outer peripheral side to the inner peripheral side of the annular segment group CS, the annular segment The diameter of the group CS is reduced.
  • the segments 31 are simply overlapped, and the diameter can be increased or decreased.
  • the diameter of the annular segment group CS is expanded using the expansion ring 170, the annular segment groups CS are overlapped with each other, and then the diameter is reduced using the reduced diameter cuff 190.
  • the annular assembly 32 is overlapped with the design value of the annular segment group CS, and as a result, it is possible to contribute to increasing the space factor of the stator 10.
  • the difference from the first embodiment is that, in the case of the first embodiment, the annular segment group CS is overlapped on the inner diameter side sequentially from the sixth assembly CS6 in the case of the first embodiment, but in the case of the second embodiment, the first assembly is overlapped.
  • the difference is that the annular segment group CS is stacked on the outer diameter side in order from CS1.
  • a physical diameter expansion means called an expansion ring 170 is provided instead of the slope 141a of the outer inclined arm 141 as the diameter expansion means.
  • the procedure for expanding the annular segment group CS, overlapping it with other annular segment groups CS, and reducing the diameter is the same. Therefore, it is possible to improve the assemblability when overlapping the annular segment group CS. The same.
  • similar to the effect of the first embodiment it is possible to reduce the lead time and cost required for manufacturing the stator 10. It is also possible to contribute to increasing the space factor of the stator 10.
  • the present invention has been described according to the present embodiment, but the present invention is not limited to the embodiment, and by appropriately changing a part of the configuration without departing from the gist of the invention. It can also be implemented.
  • stator core 20 having 48 slots 22 is used for the configuration of the stator 10, the present invention is not limited to this, and changes in the number and configuration of the slots 22 within the scope of the design items are not hindered.
  • segment 31 is used and the annular assembly 32 is formed and used in the stator 10, the present invention is considered to be applicable.
  • the annular segment group CS is expanded and it overlaps with other annular segment groups CS, and the diameter of the expanded annular segment group CS is reduced.
  • the procedure of forming the annular assembly 32 is feasible, it does not prevent other configurations from being employed.
  • the inclined surface 121a of the inner inclined plate 120 is used as the diameter reducing means.
  • the reduced diameter cuff 190 is used as the diameter reducing means.
  • the diameter is reduced to a value.
  • this does not mean that the design value has to be strictly limited, and it is sufficient that the in-slot conductor portion 31b of the annular assembly 32 fits in the slot 22 of the stator core 20 in a reduced diameter state. Further, it is not obstructed to provide a diameter reducing step for fitting the in-slot conductor portion 31b of the annular assembly 32 into the slot 22 after the diameter reduction.

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

Abstract

La présente invention concerne, dans le but de proposer un procédé de fabrication de stator qui améliore la facilité d'assemblage d'ensembles de segments, un dispositif d'assemblage (100), lequel est utilisé pour former un ensemble annulaire (32) par assemblage de multiples segments (31), les segments (31) étant agencés de façon annulaire, et qui est équipé : d'un moyen de support qui comporte des tiges de support multiples (151), qui sont disposées radialement et peuvent se rétracter dans la direction radiale, et qui insère les tiges de support (151) à travers des espaces inter-segments (CSC), lesquels sont formés sur une surface périphérique cylindrique formée par l'ensemble de segments agencés de façon annulaire (CS), afin de maintenir l'ensemble de segments agencés de façon annulaire dans un état suspendu; d'un moyen d'agrandissement de diamètre qui agrandit le diamètre de l'ensemble de segments agencés de façon annulaire (CS) à une valeur supérieure à une valeur de conception; et d'un moyen de réduction de diamètre qui réduit le diamètre à un diamètre prédéfini.
PCT/JP2012/059657 2012-04-09 2012-04-09 Procédé de fabrication de stator et dispositif de formation de boîtier de bobine WO2013153594A1 (fr)

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JP2015061389A (ja) * 2013-09-18 2015-03-30 本田技研工業株式会社 挿入方法および挿入装置
CN104993661A (zh) * 2015-06-29 2015-10-21 常州金康精工机械股份有限公司 新型挂线杯
CN104993658A (zh) * 2015-07-23 2015-10-21 上海马拉松·革新电气有限公司 一种定子绕线机的辅助输线设备
CN105119441A (zh) * 2015-08-19 2015-12-02 苏州市圣玛特电机设备制造有限公司 拉入式嵌线机拉线组件
JP2016063588A (ja) * 2014-09-17 2016-04-25 株式会社デンソー 固定子コイルの製造方法及びその製造方法に用いる仮組み装置
JP2019146451A (ja) * 2018-02-23 2019-08-29 本田技研工業株式会社 回転電機のステータ
EP3621185A1 (fr) * 2018-09-06 2020-03-11 Aumann AG Procédé et dispositif de fabrication d'un agencement d'éléments de bobine à insérer pour une bobine d'une machine électrique
EP3771079A1 (fr) * 2019-07-26 2021-01-27 Grob-Werke GmbH & Co. KG Dispositif d'agencement de couronne et procédé d'agencement de couronne
EP3771078A1 (fr) * 2019-07-26 2021-01-27 Grob-Werke GmbH & Co. KG Dispositif de couronne et dispositif d'assemblage ainsi que dispositif de couronne et procédé d'assemblage
JP2021078257A (ja) * 2019-11-11 2021-05-20 株式会社デンソー ステータの製造装置、および、ステータの製造方法
WO2021104956A1 (fr) * 2019-11-29 2021-06-03 Thyssenkrupp System Engineering Gmbh Dispositif de positionnement pour tiges de cuivre
DE102020106430A1 (de) 2020-03-10 2021-09-16 Schaeffler Technologies AG & Co. KG Verteilte Wicklung für einen Elektromotor mit nach außen und zurückgebogenen freien Enden, Elektromotor, Werkzeug zum Herstellen und Herstellverfahren
CN114340852A (zh) * 2019-05-28 2022-04-12 格鲁博-工厂有限及两合公司 用于发夹形件的夹持设备和夹持方法
DE102020214548A1 (de) 2020-11-18 2022-05-19 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Herstellung einer Wicklung für elektrische Maschinen
WO2023148823A1 (fr) * 2022-02-01 2023-08-10 平田機工株式会社 Dispositif de fabrication et procédé de fabrication

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JP2015061389A (ja) * 2013-09-18 2015-03-30 本田技研工業株式会社 挿入方法および挿入装置
US9871430B2 (en) 2013-09-18 2018-01-16 Honda Motor Co., Ltd Insertion method of U-shaped conductors
US10742101B2 (en) 2013-09-18 2020-08-11 Honda Motor Co., Ltd. Insertion apparatus which inserts U-shaped conductors
JP2016063588A (ja) * 2014-09-17 2016-04-25 株式会社デンソー 固定子コイルの製造方法及びその製造方法に用いる仮組み装置
CN104993661A (zh) * 2015-06-29 2015-10-21 常州金康精工机械股份有限公司 新型挂线杯
CN104993658A (zh) * 2015-07-23 2015-10-21 上海马拉松·革新电气有限公司 一种定子绕线机的辅助输线设备
CN105119441A (zh) * 2015-08-19 2015-12-02 苏州市圣玛特电机设备制造有限公司 拉入式嵌线机拉线组件
JP2019146451A (ja) * 2018-02-23 2019-08-29 本田技研工業株式会社 回転電機のステータ
CN110190692A (zh) * 2018-02-23 2019-08-30 本田技研工业株式会社 旋转电机的定子
EP3621185A1 (fr) * 2018-09-06 2020-03-11 Aumann AG Procédé et dispositif de fabrication d'un agencement d'éléments de bobine à insérer pour une bobine d'une machine électrique
CN110880843A (zh) * 2018-09-06 2020-03-13 奥曼股份有限公司 一种用于产生电机插入式线圈的线圈元件布置的方法和装置
US11705793B2 (en) 2018-09-06 2023-07-18 Aumann AG Method and device for producing an arrangement of coil elements for a plug-in coil of an electric machine
CN114340852A (zh) * 2019-05-28 2022-04-12 格鲁博-工厂有限及两合公司 用于发夹形件的夹持设备和夹持方法
CN112311170A (zh) * 2019-07-26 2021-02-02 格鲁博-工厂有限及两合公司 冠状件布置和接合设备以及冠状件布置和接合方法
CN112311169A (zh) * 2019-07-26 2021-02-02 格鲁博-工厂有限及两合公司 冠状件布置设备和冠状件布置方法
EP3771078A1 (fr) * 2019-07-26 2021-01-27 Grob-Werke GmbH & Co. KG Dispositif de couronne et dispositif d'assemblage ainsi que dispositif de couronne et procédé d'assemblage
US11527945B2 (en) * 2019-07-26 2022-12-13 Clemens Dreher Ring arranging device
EP3771079A1 (fr) * 2019-07-26 2021-01-27 Grob-Werke GmbH & Co. KG Dispositif d'agencement de couronne et procédé d'agencement de couronne
JP2021078257A (ja) * 2019-11-11 2021-05-20 株式会社デンソー ステータの製造装置、および、ステータの製造方法
JP7327091B2 (ja) 2019-11-11 2023-08-16 株式会社デンソー ステータの製造装置、および、ステータの製造方法
WO2021104956A1 (fr) * 2019-11-29 2021-06-03 Thyssenkrupp System Engineering Gmbh Dispositif de positionnement pour tiges de cuivre
DE102020106430A1 (de) 2020-03-10 2021-09-16 Schaeffler Technologies AG & Co. KG Verteilte Wicklung für einen Elektromotor mit nach außen und zurückgebogenen freien Enden, Elektromotor, Werkzeug zum Herstellen und Herstellverfahren
DE102020214548A1 (de) 2020-11-18 2022-05-19 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Herstellung einer Wicklung für elektrische Maschinen
WO2023148823A1 (fr) * 2022-02-01 2023-08-10 平田機工株式会社 Dispositif de fabrication et procédé de fabrication

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