WO2015162701A1 - コイル挿入機 - Google Patents

コイル挿入機 Download PDF

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Publication number
WO2015162701A1
WO2015162701A1 PCT/JP2014/061321 JP2014061321W WO2015162701A1 WO 2015162701 A1 WO2015162701 A1 WO 2015162701A1 JP 2014061321 W JP2014061321 W JP 2014061321W WO 2015162701 A1 WO2015162701 A1 WO 2015162701A1
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WO
WIPO (PCT)
Prior art keywords
coil
insulating paper
stripper
interphase insulating
coil bundle
Prior art date
Application number
PCT/JP2014/061321
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
細野聖二
Original Assignee
E-Tec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 E-Tec株式会社 filed Critical E-Tec株式会社
Priority to KR1020157024959A priority Critical patent/KR101640239B1/ko
Priority to JP2014536808A priority patent/JP5646122B1/ja
Priority to CN201480018008.9A priority patent/CN105210276B/zh
Priority to PCT/JP2014/061321 priority patent/WO2015162701A1/ja
Publication of WO2015162701A1 publication Critical patent/WO2015162701A1/ja

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/08—Forming windings by laying conductors into or around core parts
    • H02K15/085—Forming windings by laying conductors into or around core parts by laying conductors into slotted stators

Definitions

  • the present invention relates to a coil insertion machine for inserting a wound coil bundle into a slot of a stator core. Specifically, a coil of a concentrated winding motor in which adjacent coil bundles are simultaneously inserted into one slot by an inserter method so that a coil bundle is wound around each of a plurality of magnetic pole teeth arranged annularly on the inner diameter side. Regarding the insertion machine.
  • the coil wire feed needle is oscillated from the opening gap between adjacent magnetic pole teeth into the stator core slot, the coil wire is fed from the tip, and the coil wire is directly wound around the magnetic pole teeth. It is a method.
  • the second manufacturing method is an inserter method in which a coil bundle wound in advance is inserted into a slot of a stator core through the opening gap and inserted by a coil insertion machine.
  • the direct winding method requires a moving space for moving the needle in the stator core slot, and the coil space factor of the coil wire is smaller than that of the inserter method. There was a problem that vibration and noise were likely to occur during operation. Moreover, since a coil is wound for each magnetic pole tooth of the stator core, there is a problem that it takes time for manufacturing and productivity is low. Therefore, in order to meet the needs of downsizing, high efficiency, low vibration, and low noise, the manufacturing method of the electric motor has been shifted to the inserter method that can improve the coil space factor.
  • the coil space factor can be improved as compared with the direct winding method.
  • adjacent coil bundles in the slot are used.
  • the coil bundles were easily entangled and it was difficult to insert the coil bundle itself.
  • Patent Document 1 discloses a direct winding process in which a nozzle is inserted through an opening of a winding groove on the side facing a rotor of a stator core and winding is performed directly between adjacent windings in the direct winding process.
  • the technology which consists of the inserter winding process which inserts the coil wound beforehand in this space from the said opening part is disclosed. According to the technique of Patent Document 1, it is said that the coil space factor can be increased as compared with a concentrated winding electric motor having only a direct winding process.
  • Patent Document 2 when a coil is inserted in a concentrated winding shape through a slot open after winding in an annular shape in advance, a step of simultaneously inserting a coil into teeth that are not adjacent to each other is performed twice or more.
  • a technique for manufacturing an electric motor by repeating M times is disclosed. Specifically, the process of inserting the coil into the teeth of the stator is divided into two when the number of slots is an even number and three when the number of slots is an odd number. It is said that the coil space factor can be improved.
  • a dummy member is disposed in a half space in a slot, a coil bundle is inserted into an empty space in the slot, and an interphase insulating paper is disposed. The dummy member is pushed out, and coil bundles of different phases are inserted into the remaining half space to improve the coil space factor and pressure resistance.
  • Patent Document 1 Japanese Patent Laid-Open No. 2002-142416
  • Patent Document 2 Japanese Patent Laid-Open No. 2002-291209
  • the problem to be solved by the present invention is that a coil bundle is simultaneously inserted around each of adjacent magnetic teeth forming one slot in a single coil insertion process, so that the coil space factor is high and the insulation defect is poor. It is to provide a coil insertion machine capable of producing no concentrated winding motor.
  • the coil insertion machine of the concentrated winding electric motor according to the first aspect of the present invention is a concentrated type in which a coil bundle is inserted around each magnetic pole tooth of a stator core in which slots having an opening gap of a desired width on the inner diameter side are annularly arranged.
  • a coil insertion machine for a winding motor, a plurality of blade shaft bodies arranged in an annular shape in contact with the inner diameter side of the stator core so as to hook adjacent coil bundles, and the coil inserted adjacent to one slot
  • An interphase insulating paper guide member for guiding interphase insulating paper for insulating the bundle to the stator core, interphase insulating paper inserting means for inserting the interphase insulating paper between the coil bundles, and pushing the coil bundle into the slot from the opening gap
  • the coil gap pushing means having a stripper having external teeth and the blade gap formed by the adjacent blade shaft body in the axial direction
  • Coil bundle separating means for partitioning from the center to both sides, the tip of the blade gap communicates with the opening gap, and the interphase insulating paper guide member faces the outer diameter direction of each of the blade gaps.
  • the coil bundle separating means is provided with a base end portion extending along a blade shaft at the tip of the stripper, and a thin plate portion protruding in an outer diameter direction from an outer edge of the base end portion, The section is inserted into the blade gap to divide the blade gap on both sides, and the adjacent coil bundles are divided on the both sides of the interphase insulating paper guide member and on the inner side
  • the coil bundles are separated and hooked on both sides of the coil bundle separating means so as to be parallel to the blade gap, and the coil bundles arranged in parallel by one extension of the stripper are combined with the coil bundle separating means and the coil bundle separating means.
  • inter-phase insulating paper inserting means follows the inter-phase insulating paper guide.
  • the interphase insulating paper is inserted along the member.
  • the coil bundle separating means is located in front of the stripper and is slid in the stator core in a state preceding the stripper.
  • the coil bundle separating means may be formed integrally with the stripper, or may be formed separately from the stripper and attached to the stripper.
  • the width of the thin plate portion protruding from the base end portion of the coil bundle separating means is a desired width in which the blade gap is divided on both sides, and the divided width is a gap that allows at least one coil wire to be inserted. It is said. In order to reduce the width of the opening gap of the slot and reduce the vibration of the electric motor, it is preferable that the width of the thin plate portion is as thin as about one coil wire.
  • the space between the base end portion and the blade shaft body is preferably a space having a width wider than the gap between the thin plate portion and the blade shaft body so that the coil bundle can be easily hooked.
  • the base end portion and the thin plate portion constituting the coil bundle separating means may be formed so as to extend along the blade gap to a height at which the adjacent coil bundles can be separated so as not to get entangled. Furthermore, if it is formed to extend to a height slightly lower than the tip of the blade shaft body, it is preferable that the coil bundle is easily hooked.
  • the two coil bundles inserted into one slot are divided so as to be arranged on both sides of the thin plate portion. And since it is inserted in a slot with being divided, a coil bundle does not get entangled.
  • the coil bundle on the side in contact with the thin plate portion when the coil bundle is inserted is inserted into the slot in a state where friction resistance is not generated while being in contact with the thin plate portion, and the coil bundle is smoothly inserted into the slot.
  • the thin plate portion When adjacent coil bundles are inserted side by side in one slot, the thin plate portion is not deformed from the side during insertion, so the thin plate portion is not deformed and the coil bundle is inserted smoothly. Is done. As a result, even if the number of coils is increased so as to increase the coil space factor, the coil wires do not get entangled, the coil bundle is smoothly inserted, the insulation coating around the coil periphery is not damaged, and insulation failure is unlikely to occur. .
  • the interphase insulating paper guide member is disposed facing the outside of the blade gap.
  • the coil bundle outside the blade gap between the two coil bundles inserted into one slot is hooked by being divided on both sides with the interphase insulating paper guide member interposed therebetween.
  • the cross-sectional shape of the interphase insulating paper guide member is a cross-sectional shape that narrows toward the blade gap, the coil bundle extending from the blade gap to the outside of the blade shaft body is hooked so as not to be bent. It is suitable for preventing damage.
  • each hooked coil bundle is separated by the coil bundle separating means and pushed up by the stripper and inserted into one slot.
  • the outer side of the blade gap is inserted into one slot so as to be drawn into the inner coil bundle while being divided into interphase insulating paper guide members.
  • the coil bundle pushing means includes a stripper having external teeth that slide along the blade gap and a stretching means for stretching the stripper.
  • the coil bundle pushing means is preferably extended in synchronism with interphase insulating paper inserting means described later.
  • the interphase insulating paper insertion means may be any means that inserts the interphase insulating paper following the insertion of the coil bundle along the interphase insulating paper guide member. Adjacent coil bundles are evenly inserted into one slot in a state of being separated, and interphase insulating paper inserting means inserts interphase insulating paper following the coil bundle between the coil bundles. Accordingly, the insertion resistance due to the friction of the interphase insulating paper does not increase, the interphase insulating paper can be inserted without buckling, and the interphase insulating paper is not easily inserted poorly.
  • the multi-phase coil bundle hooked in parallel with the blade gap is divided into the coil bundle separating means and the interphase insulating paper guide member by one extension of the stripper. In this state, it is inserted into the slot at the same time, and interphase insulating paper is inserted following it. Accordingly, there is an advantageous effect that a concentrated winding motor having a high coil space factor can be manufactured with a coil insertion machine having a simple configuration in a short working time without using a complicated process.
  • the thin plate portion extends to the vicinity of the upper end portion of the blade gap.
  • the coil bundle separating means When the thin plate portion of the coil bundle separating means extends to the vicinity of the upper end portion of the blade gap, the coil bundle is easily hooked. Further, when the upper end of the thin plate portion is provided to be slightly lower than the upper end of the blade shaft body, the coil bundle hooked on the blade shaft body is easily slid between the blade shaft body and the thin plate portion. Is preferred. According to the second aspect of the present invention, even if the width of the blade gap for hooking the coil is narrow, the coil bundle is easily hooked along the thin plate portion that partitions the blade gap, and the production efficiency of the electric motor is improved.
  • the base end portion and the blade are arranged so that a curved coil bundle that is inward of the blade gap is hooked.
  • a space having a width wider than the width between the blade shaft and the thin plate portion is provided between the shafts.
  • the coil bundle can be easily hooked up in a space having a width wider than the width between the blade shaft and the thin plate portion, and the coil bundle can be smoothly inserted into the slot. Thereby, when inserting a coil bundle, it is hard to be damaged.
  • a projecting piece directed from the outer tooth toward the outer diameter direction is provided at an outer position of the outer tooth, and the slot Between the adjacent coil bundles inserted into the front, the interphase insulating paper is guided in advance.
  • the protruding piece passing between the coil bundles may be formed to extend outward along the outer edge of the outer tooth, may be formed over the entire length of the outer tooth, or may be formed on a part of the outer tooth. May be. If the tip of the protruding piece is formed near the bottom of the slot, it is preferable that a part of the coil bundle does not protrude into the adjacent coil bundle area before the interphase insulating paper is inserted, but the protruding dimension is not limited. . According to the fourth invention, the protruding piece is guided in advance of the interphase insulating paper, the interphase insulating paper can be inserted with a small resistance, the interphase insulating paper is not buckled, and an electric motor without insulation failure is provided. Can be manufactured.
  • the distal end portion of the thin plate portion inserted into the blade gap has an outer diameter direction extending from the blade gap.
  • a thin plate extending portion is provided, and the thin plate extending portion passes through the slot in advance and guides the interphase insulating paper between the coil bundles that are inserted by being separated by the extension of the stripper. It is characterized by.
  • the thin plate extending portion is formed to extend to the vicinity of the bottom of the slot, it is preferable that a part of the coil bundle inserted into the slot does not protrude into the adjacent coil bundle region, but the protruding dimension is not limited. .
  • the thickness of the thin plate extension may be the same as that of the thin plate, or only the thin plate extension may be slightly wider than the thickness of the interphase insulating paper. Further, the thin plate extending portion may be formed integrally with the protruding piece.
  • the interphase insulating paper is inserted, and the coil bundle is kept separated by the thin plate extending portion in the slot until the coil bundle is pushed in.
  • the coil bundle is inserted into one slot in an orderly manner, and interphase insulating paper is inserted between them, making it possible to manufacture a high-performance electric motor with no eccentricity of the coil bundle.
  • the protruding piece gently spreads downward, and the lower width is wider than the interphase insulating paper. It is characterized by being.
  • the width below the protruding piece is wider than the interphase insulating paper, so that the tip of the interphase insulating paper does not interfere with the coil. Thereby, the insertion resistance of the interphase insulating paper becomes smaller, the interphase insulating paper is not buckled, and an electric motor without insulation failure can be manufactured.
  • the protruding piece may be provided in a state separated from the thin plate extending portion, or may be provided integrally.
  • the coil insertion machine in the coil insertion machine according to the fourth to sixth aspects of the present invention, includes a stretching means for stretching the stripper and a stripper pulling means for pulling the stripper forward, wherein the stretching means is the stripper.
  • the stripper is pushed up by the stretching means, and after the coil bundle and the interphase insulating paper are inserted into the slot, the stretching means and the stripper are separated, and the stripper is pulled out of the stripper.
  • the stripper is pulled out through the stator core by being locked by means.
  • the stretching means includes a shaft body that is locked by a stripper and extends slidably within the blade shaft body, and a shaft body stretching device. Further, the stretching means and the stripper need only be engaged with the lower end of the stripper so as to be separable from the shaft body, and the stripper pulling means may be pulled out after the stripper exceeds the stator core. By providing the stripper extracting means, the stripper does not have to be returned along the forward path after the coil bundle is inserted into the stator core.
  • the protruding piece or the thin plate extension portion passes through the slot in one direction and the interphase insulating paper is subsequently inserted, the protruding piece or the thin plate extension portion is not returned.
  • the extension part or the protruding piece does not interfere with the interphase insulating paper inserted, and the interphase insulating paper is not buckled or damaged.
  • the stripper that has been pulled out may be returned to the shaft body after the stator core having the coil inserted therein is removed.
  • the coil bundle separating means and the stripper can be separated, and a coil bundle separating means withdrawing means is provided. After the interphase insulating paper is inserted into the slot, the coil bundle separating means and the stripper are separated, and the coil bundle separating means is locked to the coil bundle separating means pulling means, and passes through the stator core. The coil bundle separating means is pulled out, and the stripper can be returned along the blade shaft.
  • the coil bundle separating means and the stripper need only be separably engaged with the stripper at the lower end of the coil bundle separating means, and the coil bundle separating means pulling means may be pulled out after the stripper exceeds the stator core. . Since the thin plate extension part is pulled out together with the coil bundle separating means, even if the stripper is returned along the forward path, it does not interfere with the interphase insulating paper inserted by the thin plate extension part. There is no damage.
  • the thin plate extension portion is not inserted after the thin plate extension portion passes through the slot in one direction and the interphase insulating paper is subsequently inserted. It does not interfere with the interphase insulating paper and does not buckle or break the interphase insulating paper.
  • the drawn coil bundle separating means may be returned so as to be locked to the stripper after removing the stator core into which the coil is inserted.
  • the multi-phase coil bundle hooked in parallel with the blade gap is divided into the coil bundle separating means and the interphase insulating paper guide member by one extension of the stripper. At the same time, it is inserted into one slot, and interphase insulating paper is inserted following the insertion. Accordingly, there is an advantageous effect that a concentrated winding motor having a high coil space factor can be manufactured with a coil insertion machine having a simple configuration in a short working time without using a complicated process. According to the second aspect of the present invention, even if the width of the blade gap for hooking the coil is narrow, the coil bundle is easily hooked along the thin plate portion that partitions the blade gap, and the production efficiency of the electric motor is improved.
  • the coil bundle can be easily and orderly hooked in a space having a width wider than the width between the blade shaft and the thin plate portion, and the coil bundle can be smoothly inserted into the slot. Hard to damage when inserting a bundle.
  • the protruding piece is guided in advance of the interphase insulating paper, and it becomes possible to insert the interphase insulating paper with a small resistance, the interphase insulating paper does not buckle, and there is an insulation failure. It is possible to manufacture a high-performance motor with no coil space factor.
  • the coil bundle is divided by the thin plate extending portion in the slot until the coil bundle starts to be pushed in and then the interphase insulating paper is inserted and the coil bundle is pushed in. It is possible to manufacture a high-performance electric motor in which the coil bundle is inserted into one slot in an orderly manner and the interphase insulating paper is inserted between them, and the coil bundle is not eccentric. Become.
  • the width below the protruding piece is wider than the interphase insulating paper, the tip of the interphase insulating paper is prevented from interfering with the coil, and the interphase insulating paper is seated. It can be inserted without bending, without being damaged, and an electric motor without insulation failure can be manufactured.
  • the protruding piece or the thin plate extension part passes through the slot in one direction and the interphase insulating paper is subsequently inserted, the protruding piece or the thin plate extension part is returned. Therefore, the thin plate extending portion or the protruding piece does not interfere with the interphase insulating paper inserted, and the interphase insulating paper is not buckled or damaged.
  • the thin plate extension portion is not returned after the thin plate extension portion passes through the slot in one direction and the interphase insulating paper is subsequently inserted.
  • the part does not interfere with the interphase insulating paper inserted, and the interphase insulating paper is not buckled or damaged.
  • Explanatory drawing by the perspective view of a coil insertion machine (Example 1). Explanatory drawing of a stripper and a coil bundle separation means (Example 1). Explanatory drawing by the cross section of a perpendicular direction of a coil insertion machine (Example 1). Explanatory drawing by the AA position cross section of a coil insertion machine (Example 1). Explanatory drawing by the BB position cross section of a coil insertion machine (Example 1). Explanatory drawing explaining insertion of phase insulation paper (Example 1).
  • Explanatory drawing by sectional drawing of a phase insulation paper guide member (Example 1). Explanatory drawing explaining the insertion state of a coil bundle (Example 1). Explanatory drawing of the coil bundle insertion process of a coil insertion machine (Example 1). Explanatory drawing of the coil bundle separation means provided with the stripper and the thin plate extension part (Example 2). Explanatory drawing of the coil bundle insertion process of a coil insertion machine (Example 2). Explanatory drawing of the coil bundle insertion process of a coil insertion machine (Example 3). Explanatory drawing of the coil bundle separation means in which the thin plate extension part and the protrusion piece are integrally formed (Example 4). Explanatory drawing (others) of the stripper by which the protrusion piece was provided in the external tooth.
  • the coil insertion machine 1 is configured to insert adjacent coil bundles 40 and 40 inserted into one slot in a state where the coil bundle separation means 80 and the interphase insulating paper guide member 20 are arranged and separated.
  • FIGS. FIG. 1 is a perspective view of the coil inserter 1
  • FIG. 2 is an explanatory view of the stripper 50 and the coil bundle separating means 80
  • FIG. 3 is an explanatory view of a vertical section of the coil inserter 1.
  • 4 and 5 are explanatory views of the coil insertion machine 1 shown in FIG. 3 taken along the AA position cross section and the BB position cross section. 6 is an explanatory diagram for explaining the insertion of the interphase insulating paper 70 into the slot, FIG.
  • FIG. 7A is an explanatory diagram by a cross-sectional view of the interphase insulating paper guide member 20 sandwiched between the interphase insulating paper 70
  • FIG. 6 is an explanatory view of the interphase insulating paper pusher shaft body sliding space 61 and the interphase insulating paper pusher shaft body 60 in a sectional view.
  • FIG. 8 is an explanatory diagram of the coil insertion machine 1 in a state where the coil bundle 40 is simultaneously inserted into the slot 32
  • FIG. 9 is an explanatory diagram of a coil insertion process of the coil insertion machine 1.
  • the coil insertion machine 1 includes a blade shaft 10, an interphase insulating paper guide member 20, and coil bundle separating means 80.
  • the blade shaft 10 and the interphase insulating paper guide member 20 are annularly arranged and fixed together, and a coil bundle separating means 80 is disposed in an inner space formed by the blade shaft.
  • the coil bundle separating means 80 includes a base end portion and a thin plate portion extending in the outer diameter direction from the outer periphery thereof, and the horizontal cross-sectional shape is substantially a gear shape.
  • the thin plate portion 81 is inserted into each blade gap 13 formed by the blade shafts disposed adjacent to each other, and the base end portion is a curved portion 82 along the coil bundle to be inserted by bending.
  • the coil bundle separating means 80 is mounted by a fixing means (not shown in the figure) so as to be in contact with the upper side of the sliding stripper 50 in the inner space formed by the blade shaft body 10 (see FIG. 2). .
  • the coil bundle separating means 80 is provided such that the upper end of the coil bundle separating means 80 is substantially the same height as the upper end of the blade shaft body when the stripper is not extended.
  • the tip of the thin plate portion 81 is inserted into the blade gap 13, and the blade gap is partitioned from the center to both sides along the blade shaft body 10.
  • the thickness of the thin plate portion is the width of the opening gap 31 (see FIG. 6) of the stator core so that the width of the partitioned blade gap 14 is a desired narrow width that allows one to two coil wires to be inserted. It is preferable that the thickness be in accordance with the above. Specifically, if the width of the opening gap of the stator core is 3 mm, the thickness of the thin plate portion 81 is preferably about 0.5 mm.
  • the bending portion 82 is loose in a shape that protrudes inward so that the bent portion 41 (see FIG.
  • a gap formed by the thin plate portion 81 and the curved portion 82 and the blade shaft body 10 serves as a hooking gap 83 for hooking the coil bundle onto the blade shaft body.
  • the coil bundle 43 on the inner side of the blade gap 13 is inserted from the opening above the hook gap 83 and hooked so as to be slid down into the partitioned blade gap 14 along the thin plate portion 81 (FIG. 4).
  • the coil bundle 44 on the outer side of the blade gap 13 is hooked so as to be inside the adjacent interphase insulating paper guide member 20.
  • the coil bundle 40 is hooked to a height below the interphase insulating paper guide member 20 (see FIG. 9B). ). By increasing the hook height, it is possible to increase the number of coil wires and achieve a high coil space factor.
  • the blade shaft body 10 includes a blade shaft body main body 11 and a guide member 12 that guides the flange portion of the interphase insulating paper, and the guide member 12 is attached to the lower portion of the outer surface of the blade shaft body main body 11.
  • the blade shaft body 10 nine blade shaft body bodies 11 are arranged in an annular shape with a space therebetween, thereby forming a blade gap 13 that faces the opening gap 31 of the stator core 30.
  • the stator core 30 is supported at the tip of the blade shaft so that the blade gap 13 formed by the adjacent blade shaft communicates with the opening gap 31 of the stator core (see FIG. 3).
  • the blade shaft body 10 is a shaft body having a substantially semicircular cross-sectional shape curved on the inner side (see FIG. 5).
  • the width of the blade gap 13 between adjacent blade shafts can be inserted into a coil bundle by winding a coil wire around the thin plate portion 81 of the coil bundle separating means and the blade gap 14 partitioned on both sides thereof. Width.
  • the width of the blade gap is substantially the same as the opening gap.
  • An interphase insulating paper guide member 20 is disposed at a position facing the blade gap 13 formed by the adjacent blade shaft bodies 10.
  • the interphase insulating paper guide member 20 is provided with an inclined portion 21 that is lowered to both sides at a tip portion toward the stator core.
  • the cross-sectional shape of the interphase insulating paper guide member 20 is inclined so that the side 22 toward the blade gap is narrowed.
  • the interphase insulating paper guide member 20 is provided with a guide gap 23 for guiding the interphase insulating paper 70 along the axial direction on the side facing the blade gap 13.
  • the interphase insulating paper inserting means includes an interphase insulating paper pusher shaft body 60 (see FIG. 7) that moves along the guide gap 23 and a driving means for the interphase insulating paper pusher shaft body (not shown).
  • the interphase insulating paper guide member 20 When the stator core 30 is supported by the blade shaft body 10, the interphase insulating paper guide member 20 is positioned below the center of the slot and extends to the vicinity of the lower end of the slot (see FIG. 3).
  • the width of the guide gap 23 in the shaft body of the interphase insulating paper guide member is set to a width that holds the folded portion 71 of the interphase insulating paper 70 described later (see FIG. 7A).
  • the guide gap 23 is provided with an interphase insulating paper pusher shaft sliding space 61 in which the interphase insulating paper pusher shaft 60 is moved (see FIG. 7B).
  • the interphase insulating paper 70 a single long and thin resin flat plate having electrical insulating properties is bent at the center portion to form a folded portion 71. Furthermore, both side portions are bent at positions equally spaced from the central portion to form a flange portion 72 that seals the opening gap 31 of the stator core, and is formed into a substantially T-shaped cross-sectional shape as a whole (see FIG. 4). (See FIG. 7A).
  • the resin flat plate is cut to a desired length by an unillustrated interphase insulating paper making machine and folded into the above shape, and then the folded portion 71 is sandwiched between the guide gaps of the interphase insulating paper guide member. Then, it is guided into the slot (see FIGS. 6 and 7).
  • the interphase insulating paper 70 inserted into the guide gap 23 closes the slot opening gap 31 following the insertion of the coil bundle 40 by the stripper while the flange portion 72 is in contact with the guide member 12 of the blade shaft. It is inserted so as to insulate between the two coil bundles.
  • the interphase insulating paper 70 is sandwiched between the guide gaps 23 and is inserted in contact with the guide member 12 forming the blade shaft, so that the interphase insulating paper is prevented from being inserted at an angle.
  • FIG. 2A is a plan view
  • FIG. 2B is a perspective view
  • FIG. 3 is an explanatory diagram for explaining the coil insertion machine 1 in a vertical section.
  • the stripper 50 has a substantially gear shape so as to be fitted in an inner space formed by the blade shaft body, and external teeth 51 (FIGS. 2, 10, 11, 13, and 13) inserted into the blade gap. 14) and a recess 54 between each external tooth.
  • the external teeth 51 are formed such that the tips thereof are inserted into the slots slightly beyond the blade gap 13 so that the coil bundle 40 does not protrude from between the blade gap 13 and the opening gap 31 ( (See FIG. 5).
  • the upper edge of the external tooth 51 is formed so as to be gently inclined downward (see FIG. 3). This inclined portion is used as a coil bundle push-up portion 55 (see FIGS. 2 and 3).
  • the recessed portion 54 (see FIG. 2) is formed to be recessed inward so as to contact the inner surface of the blade shaft body 10.
  • the lower surface of the coil bundle separating means 80 is attached by fixing means (not shown in the figure) so as to contact the top surface of the stripper 50 (see FIG. 3).
  • the thin plate portion 81 has a width narrower than that of the external teeth 51, and the tip end portion thereof extends to the outer edge of the external teeth 51.
  • the bending portion 82 is formed so as to be deeper on the axial center side than the recess portion 54 of the stripper, and serves as a coil bundle push-up portion 55 as well as a position for accommodating the bending portion of the hooked coil bundle.
  • the coil bundle push-up portion 55 comes into contact with the coil bundle 43 on the inner side of the blade gap and pushes up the coil bundle 40 (see FIG. 5).
  • the stripper extending means 53 includes a driving means (not shown) and a shaft body that is extended in the vertical direction by the driving means, and the stripper 50 is locked on the upper part thereof.
  • the interphase insulating paper pusher shaft body 60 is a small-diameter shaft body that can be inserted into the interphase insulating paper pusher shaft body sliding space 61, and is configured to be extended vertically in conjunction with the extending means of the stripper ( (See FIG. 7B).
  • the interphase insulating paper 70 bent in a substantially T shape is guided along the guide gap 23 that penetrates the interphase insulating paper guide member 20 in the axial direction.
  • FIGS. 4 and 5 are cross-sectional views of the coil insertion machine in the horizontal direction
  • FIG. 4 shows a cross-sectional view at the position AA in FIG. 3
  • FIG. 5 shows a cross-sectional view at the position BB in FIG. Is shown.
  • the stripper is indicated by a broken line.
  • the stator core 30 (see FIG. 6) is supported by the blade shaft 10 so that the number of slots is 9, and the opening gap 31 faces the blade gap 13.
  • the guide gap 23 provided in the interphase insulating paper guide member 20 is formed so that the depth extends to a position corresponding to the outer peripheral side of the slot 32.
  • the interphase insulating paper 70 is formed so that the length of the folded portion 71 is aligned with the depth of the slot 32 in the radial direction, so that the adjacent coil bundles 40 are reliably insulated.
  • the flange portion 72 of the interphase insulating paper has a width wider than the width of the opening gap 31 of the slot so that the coil bundle inserted into the slot is insulated (see FIGS. 6 and 7).
  • the coil bundle 43 on the inner side of the blade gap 13 is divided on both sides of the thin plate portion 81 so that the adjacent coil bundles 40 are not entangled, and is hooked side by side in the blade gap.
  • the coil bundle 44 on the outer side of the blade gap 13 is sectioned and hooked inside the adjacent interphase insulating paper guide member 20.
  • FIG. 6 is an explanatory diagram for explaining the insertion of the interphase insulating paper 70.
  • FIG. 7A is an explanatory diagram illustrating the interphase insulating paper 70 sandwiched between the interphase insulating paper guide members 20 by a cross section.
  • FIG. 7B is an explanatory diagram for explaining the interphase insulating paper pusher shaft 60 in section.
  • FIG. 6 for easy understanding, the interphase insulating paper 70 and the interphase insulating paper pusher shaft body 60 are illustrated only in one place, and the coil bundle and the interphase insulating paper guide member are omitted.
  • the stator core 30 has a substantially cylindrical shape, and nine substantially T-shaped magnetic pole teeth 33 are annularly arranged inward. A gap formed by the wide part of the magnetic pole teeth is an opening gap 31, and a space defined by adjacent magnetic pole teeth is a slot 32. Further, a slot insulating paper 34 that insulates the stator core from the coil bundle inserted into the slot is fitted in advance on the inner peripheral surface of each slot. The slot insulating paper 34 is formed leaving an opening gap 31 so that a coil bundle can be inserted.
  • the interphase insulating paper 70 is pushed up by the interphase insulating paper pusher shaft 60 along the guide gap 23 of the interphase insulating paper guide member (see FIG. 7) following the insertion of the coil bundle by the extension of the stripper.
  • the interphase insulating paper pusher shaft 60 is pushed up so as to be sandwiched between the gaps between adjacent coil bundles in the slot.
  • the length of the interphase insulating paper 70 is slightly longer than the height of the slot 32 so as to protrude from the upper end and the lower end of the stator core, thereby further ensuring the insulation between the coil bundles (FIG. 9 (F (See the figure).
  • the shape of the front end portion 62 of the interphase insulating paper pusher shaft is not limited, but it is preferable that the end portion 62 of the interphase insulating paper pusher shaft is substantially U-shaped so that the lower end portion of the folded portion of the interphase insulating paper is supported. (See FIG. 6).
  • Interphase insulating paper folding member 71 is sandwiched in the guide gap 23 of the interphase insulating paper guide member 20 so as not to spread left and right.
  • the end 73 of the folded portion of the interphase insulating paper is inserted so as to reach the bottom 25 of the guide gap 23.
  • the interphase insulating paper pusher shaft 60 will be described with reference to FIG.
  • the interphase insulating paper pusher shaft sliding space 61 is provided in the middle from the opening 24 to the back bottom 25 of the guide gap 23 and has a width wider than the width of the guide gap 23. It extends along the axial direction.
  • the interphase insulating paper pusher shaft body 60 is slidable along the interphase insulating paper pusher shaft body sliding space 61.
  • FIG. 8 the imaginary line of the interphase insulating paper 70 inserted into the front slot is indicated by a broken line, and the imaginary line of the interphase insulating paper pusher shaft 60 is indicated by an alternate long and short dash line.
  • a stripper (not shown) is stretched to raise the coil bundle separating means 80, and the coil bundle separating means 80 protrudes upward beyond the stator core 30 (see FIG. 9C).
  • the bent portion 41 at the end of the coil bundle ahead is pushed up by the stripper, and the portion extending outward from the blade gap is divided into the thin plate portion 81 and the interphase insulating paper guide member 20. In this state, it is pulled inward from the blade gap.
  • the coil bundle drawn inward from the blade gap is pushed up while being divided into the coil bundle separating means 80 and begins to be simultaneously pushed into the slot 32 through the opening gap by the external teeth of the stripper ( (See FIG. 9D).
  • the interphase insulating paper starts to be inserted following the coil bundle.
  • the bent portion 41 at the end of the coil bundle on the front side is simultaneously inserted into the slot through the opening gap of the stator core along the curved portion 82 (see FIG. 9E).
  • the bent portion 42 at the end of the lower coil bundle is shown as a terminal portion protruding from the stator core while being divided along the inclined portion 21 of the interphase insulating paper guide member 20 as shown in FIG.
  • FIG. 9F the insertion process of the coil bundle and interphase insulating paper is completed (see FIG. 9F).
  • FIG. 9A is a diagram illustrating a cutting position representing a cross-sectional view of the coil insertion machine 1.
  • the coil bundle is omitted and the stator core 30 is indicated by a broken line in order to facilitate understanding.
  • FIGS. 9B to 9G are explanatory views for sequentially explaining the coil insertion process at the cutting position of the ABC line shown in FIG. 9A.
  • the stator core support portion 35 is indicated by a one-dot chain line. The same applies to other embodiments described later.
  • FIG. 9B the stator core 30 supported by the blade shaft body and the blade shaft body 10 therein are indicated by broken lines.
  • stator core support portion 35 that supports the stator core 30 is lowered, and the stator core 30 is supported ahead of the blade shaft body 10.
  • the interphase insulating paper 70 is positioned below the coil insertion machine, and is passed through the interphase insulating paper guide member 20 by the interphase insulating paper pusher shaft 60.
  • the stripper 50 is stretched, the coil bundle push-up portion is in contact with the coil bundle 43 on the inner side from the blade gap, and the coil bundle 40 is pushed up while being divided into the coil bundle separating means 80.
  • the interphase insulating paper pusher shaft 60 is stretched following the stripper 50, and the interphase insulating paper 70 is pushed up (FIG. 9C).
  • the coil bundle 44 outside the blade gap begins to be inserted into the slot from the lower end side of the opening gap while being drawn into the blade gap (FIG. 9D). .
  • the stripper 50 is pushed up, and the front ends of all the coil bundles 40 are pushed out above the slots (FIG. 9E). Then, following the insertion of the terminal portion of the coil bundle, the terminal portion of the interphase insulating paper 70 is inserted (FIG. 9F). Finally, the stripper 50 and the interphase insulating paper pusher shaft 60 are lowered, and the stator core 30 is removed from the coil insertion machine 1 while being supported by the stator core support portion 35 (FIG. 9G), and a series of coil bundles The insertion process is complete.
  • Example 2 a coil insertion machine including a thin plate extending portion 85 will be described with reference to FIGS. 10 and 11.
  • FIG. 10A is a plan view of the stripper 50 and the coil bundle separating means 84.
  • FIG. 10B is an explanatory diagram based on the perspective view.
  • FIG. 11 is an explanatory view for explaining the action of the stripper extraction means.
  • the range shown on the outside of the alternate long and short dash line is the thin plate extending portion 85.
  • a configuration different from the configuration of the coil insertion machine of Example 1 and the coil bundle insertion step will be described.
  • Example 2 the coil bundle separating means 84 in which the thin plate portion 81 extends outward will be described with reference to FIGS. 10 (A) and 10 (B).
  • the configuration of the coil insertion machine includes a stripper pulling means 56 and a thin plate extending portion 85 for pulling the stripper upward.
  • the thin plate extending portion 85 has a projecting dimension that is substantially the same as the dimension of the slot 32 in the depth direction, and partitions the blade gap and the slot on both sides from the center position.
  • the thickness of the thin plate extension portion 85 may be the same as that of the thin plate portion 81, or only the thickness of the thin plate extension portion 85 may be changed.
  • the thin plate extending portion 85 precedes and passes through the guide gap 23 of the interphase insulating paper guide member, and guides the interphase insulating paper between adjacent coil bundles in the slot. If it does so, it will not protrude from the area
  • a series of coil bundle hooking steps, stator core supporting steps, stripper stretching steps, and interphase insulating paper insertion steps are the same as in the first embodiment (see FIGS. 9B to 9F).
  • the stripper provided with the coil bundle separating means is locked to the stripper pulling means 56 by the locking means not shown in the drawing.
  • it is separated from the stretching means and pulled out through the stator core (FIG. 11 (G)).
  • the stator core 30 is removed together with the stator core support portion 35 (FIG. 11H).
  • the stripper provided with the coil bundle separating means returns to the original position, is engaged with the extending means, and is returned to complete the series of coil bundle inserting steps (see FIG. 9 (G)).
  • Example 3 the coil bundle separating means 84 having the thin plate extending portion 85 is separably locked with the stripper 50, and after the coil bundle and interphase insulating paper are inserted, prior to the removal of the stator core, The steps of the embodiment in which the coil bundle separating means 84 is extracted by the coil bundle separating means extracting means 57 will be described. With reference to FIG. 12, a different part from Example 2 is demonstrated.
  • the coil bundle separating means 84 After the coil bundle separating means 84 passes above the stator core 30, the coil bundle separating means 84 is locked to the coil bundle separating means extracting means 57, separated from the stripper 50, and pulled out through the stator core (FIG. 12 ( G) Figure). Thereafter, the stator core 30 is removed together with the stator core support portion 35, and the stripper is returned (FIG. 12 (H)). Then, the coil bundle separating means returns to the original position where it comes into contact with the stripper, and is returned so as to be engaged with the stripper, thereby completing a series of coil bundle insertion steps (see FIG. 9G).
  • FIG. 13 is a perspective view of a stripper provided with coil bundle separating means 86 in which a thin plate extending portion and a protruding piece are integrally formed.
  • the configuration other than the coil bundle separating means is the same as that of the second embodiment.
  • Example 4 the coil bundle separating means in which the thin plate extending portion 85 is integrally formed with the protruding piece 87 protruding to the position outside the outer teeth of the stripper is described with reference to FIG. explain.
  • the width of the thin plate extending portion 85 is substantially the same as the length of the slot 32 in the depth direction, and partitions the blade gap and the slot on both sides from the center position.
  • the thin plate extending portion 85 is formed integrally with the protruding piece 87 and extends along the outer teeth 51 to the lower side of the stripper.
  • the lower portion 88 of the protruding piece 87 is formed so as to gently spread downward.
  • the thickness of the lower end of the lower part 88 is set to be slightly wider than the thickness of the bent interphase insulating paper.
  • the protruding piece 87 is integrally formed, the protruding piece is smoothly inserted and passed between adjacent coil bundles in conjunction with the thin plate extending portion 85, and a part of the coil bundle in the slot is adjacent to the adjacent one. It is prevented from entering the section of the coil bundle.
  • the interphase insulating paper is inserted more smoothly without damaging the insulating coating on the periphery of the coil and without being buckled.
  • the coil insertion process may be the same as that in Example 3 or Example 4, and the description thereof is omitted here. (Other)
  • a 9-slot multi-phase stator core having an odd number of slots has been described.
  • the number of slots is not limited, and the number of slots may be an even number.
  • the protruding piece 52 may be provided in the stripper of the first embodiment, or the thin plate extending portion and the protruding piece may be provided in a separated state.
  • the coil insertion machine containing the summary of this invention is good also as an electric motor manufacturing equipment included in a series of manufacturing lines.
  • Stator core support 41, 42 ... bent portion of the end of the coil bundle, 43 ... inner coil bundle, 44 ... outer coil bundle, 51 ... External teeth, 52 ... Projection piece, 53 ... Stripper extension means, 54 ... Depression, 55 ... Coil push-up part, 56 ... Stripper extraction means, 57 ... Coil bundle separation means extraction means, 61 ... Interphase insulating paper pusher sliding space, 62 ... tip, 71: Folding part, 72 ... Flange part, 73 ... End of folding part, DESCRIPTION OF SYMBOLS 81 ... Thin plate part, 82 ... Curved part, 83 ... Hook gap, 84 ... Coil bundle separation means, 85 ... Thin plate extension part, 86 ... Coil bundle separation means, 87 ... Projection piece, 88 ... Lower part

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
PCT/JP2014/061321 2014-04-22 2014-04-22 コイル挿入機 WO2015162701A1 (ja)

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KR1020157024959A KR101640239B1 (ko) 2014-04-22 2014-04-22 코일 삽입기
JP2014536808A JP5646122B1 (ja) 2014-04-22 2014-04-22 コイル挿入機
CN201480018008.9A CN105210276B (zh) 2014-04-22 2014-04-22 线圈***机
PCT/JP2014/061321 WO2015162701A1 (ja) 2014-04-22 2014-04-22 コイル挿入機

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JP6168677B1 (ja) * 2017-03-01 2017-07-26 Ｅ−Ｔｅｃ株式会社 相間絶縁紙、ステータコア及びコイル挿入機
JP6973764B1 (ja) * 2021-02-02 2021-12-01 Ｅ−Ｔｅｃ株式会社 コイル挿入機

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KR101880851B1 (ko) * 2017-04-27 2018-07-20 김만수 Bldc 모터용 고정자의 코일 인서팅 장치
KR101864075B1 (ko) * 2017-04-27 2018-06-01 김만수 Bldc 모터용 고정자에 코일을 권선하는 방법
CN107332406B (zh) * 2017-07-24 2019-07-02 广东美的环境电器制造有限公司 定子落线方法、定子及电机

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WO2022168139A1 (ja) * 2021-02-02 2022-08-11 E-Tec株式会社 コイル挿入機

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CN105210276A (zh) 2015-12-30
JPWO2015162701A1 (ja) 2017-04-13
KR20150140648A (ko) 2015-12-16
KR101640239B1 (ko) 2016-07-15
JP5646122B1 (ja) 2014-12-24

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