WO2022201724A1 - コイル挿入装置 - Google Patents

コイル挿入装置 Download PDF

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Publication number
WO2022201724A1
WO2022201724A1 PCT/JP2021/048732 JP2021048732W WO2022201724A1 WO 2022201724 A1 WO2022201724 A1 WO 2022201724A1 JP 2021048732 W JP2021048732 W JP 2021048732W WO 2022201724 A1 WO2022201724 A1 WO 2022201724A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
guide
stator core
axial direction
insertion device
Prior art date
Application number
PCT/JP2021/048732
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
宏司 丹下
歩 橋本
智哉 上田
Original Assignee
日本電産株式会社
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 日本電産株式会社 filed Critical 日本電産株式会社
Publication of WO2022201724A1 publication Critical patent/WO2022201724A1/ja

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/06—Embedding prefabricated windings in machines
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots

Definitions

  • the present invention relates to a coil insertion device.
  • a method of manufacturing a stator by inserting coils and wedges into slots of a stator core is known.
  • a wedge pusher is composed of a push rod portion made of a rod-shaped body and a tongue portion, and the tip of the tongue portion protrudes from the tip of the push rod portion.
  • a coil insertion device is disclosed which supports the back surface of the wedge during the final insertion stage and inserts the wedge into place without buckling.
  • the inventor of the present invention has focused on the problem of the coil inserting device of Patent Document 1 that the coil may protrude from the wedge.
  • the present invention provides a coil insertion device that prevents the coil from protruding from the wedge.
  • a coil inserting device inserts a coil, in which a coil wire is annularly wound, into a plurality of slots extending axially through a stator core from one side in the axial direction to the other side.
  • An inserting device comprising: a coil moving mechanism arranged radially inside the stator core and moving axially to move the coil; A plurality of blades arranged and extending in the axial direction of the stator core to hold the coil, and a guide axially passing through the coil on one side of the stator core in the axial direction to guide the axial movement of the coil.
  • the present invention can provide a coil insertion device that prevents the coil from protruding from the wedge.
  • FIG. 1 is a sectional view of a section perpendicular to the axial direction of the stator.
  • FIG. 2 is a cross-sectional schematic diagram of the coil insertion device and method of the embodiment.
  • FIG. 3 is a schematic cross-sectional view of the coil insertion device and method of the embodiment.
  • FIG. 4 is a schematic cross-sectional view of the coil insertion device and method of the embodiment.
  • FIG. 5 is a schematic perspective view of the coil insertion device and method of the embodiment.
  • FIG. 6 is a schematic perspective view of the coil insertion device and method of the embodiment.
  • FIG. 7 is a schematic perspective view of the coil insertion device and method of the embodiment.
  • FIG. 8 is a flow chart of the coil insertion method of the embodiment.
  • FIG. 9 is a diagram showing the problem.
  • the direction in which the central axis of the stator 1 extends that is, the direction in which the slots pass through is referred to as the "axial direction.”
  • the vertical direction is used to specify the positional relationship, and does not limit the actual direction. That is, the downward direction does not necessarily mean the direction of gravity.
  • the axial direction is not particularly limited, and includes a vertical direction, a horizontal direction, a direction crossing these directions, and the like.
  • a direction perpendicular to the central axis of the stator 1 is defined as a "radial direction". Let one side along the radial direction be the inner side and the other side be the outer side. Further, a direction along an arc centered on the central axis of the stator 1 is defined as a "circumferential direction”.
  • stator 1 As shown in FIG. 1, the stator 1 is a component of the motor and interacts with a rotor (not shown) to generate rotational torque.
  • the stator 1 of this embodiment has distributed winding in which the coil 10 is wound over several slots 21 .
  • a stator 1 includes a coil 10 , a stator core 20 , a wedge 30 and insulating paper 40 .
  • the stator core 20 is formed in a hollow cylindrical shape.
  • the stator core 20 is formed by stacking thin silicon steel plates.
  • a plurality of teeth 23 are radially formed on the stator core 20 .
  • Slots 21 are formed between teeth 23 .
  • the teeth 23 extend radially through the slots 21 .
  • a slot opening 22 that is a radial opening is formed in the slot 21 .
  • the stator core 20 of this embodiment is an integrated stator core.
  • the coil 10 is formed by winding a coil wire in a loop.
  • the coil wire of this embodiment is a round wire, but is not particularly limited, and may be a rectangular wire or the like.
  • the coil 10 has two coil side portions and a coil transition portion.
  • the two coil sides are accommodated in slots 21 .
  • the slot 21 in which one coil side portion is accommodated differs from the slot 21 in which the other coil side portion is accommodated.
  • the slot 21 accommodating one coil side portion and the slot 21 accommodating the other coil side portion may be arranged in the circumferential direction via another slot as shown in FIG. (not shown).
  • the wedge 30 is arranged between the coil 10 arranged in the slot 21 and the slot open 22 .
  • Wedge 30 closes slot opening 22 .
  • Wedge 30 insulates stator core 20 and coil 10 .
  • the axial length of wedge 30 is greater than the axial length of slot 21 .
  • the wedge 30 of this embodiment is U-shaped when viewed in the axial direction. Specifically, it includes a circumferential portion extending in the circumferential direction and two radial portions extending radially outward from both ends of the circumferential portion.
  • the circumferential portion and the radial portion may be composed of one member, or different members may be connected to each other.
  • the insulating paper 40 covers the coil 10 inserted into the slot 21 .
  • the insulating paper 40 is arranged along the teeth that define the space in the slot 21 except for the radially inner side.
  • the insulating paper 40 of this embodiment is U-shaped. In FIG. 1, the openings in the insulating paper 40 and the openings in the wedge 30 are in opposite directions.
  • the insulating paper 40 may have a cuff portion (not shown) protruding from the axially one side end surface of the stator core 20 and folded back. It may have cuffs (not shown) that protrude from and are folded back.
  • FIG. 2 to 4 schematically show a state in which the coil insertion device 100 is cut in the axial direction.
  • 5 to 7 schematically show a perspective view of the coil insertion device 100.
  • the coil 10 is inserted into the slot 21 in the order of FIGS. 2, 5, 3 and 6, 4 and 7.
  • FIG. 2 to 4 schematically show a state in which the coil insertion device 100 is cut in the axial direction.
  • 5 to 7 schematically show a perspective view of the coil insertion device 100.
  • FIG. The coil 10 is inserted into the slot 21 in the order of FIGS. 2, 5, 3 and 6, 4 and 7.
  • the coil inserting device 100 inserts a coil 10 in which a coil wire is annularly wound in a plurality of slots 21 penetrating a stator core 20 in the axial direction from one axial side to the other side ( In FIG. 2, it is inserted from the right side to the left side). Specifically, the coil insertion device 100 inserts the coil 10 from each slot opening 22 so as to straddle the plurality of slots 21 of the stator core 20 .
  • the coil 10 inserted into the slots 21 using the coil insertion device 100 is wound using a winding frame having a circumferential width smaller than the circumferential spacing between the slots 21 .
  • the coil having the targeted dimensions is produced.
  • the coil insertion device 100 includes a plurality of blades 110 shown in FIGS. 2 to 4, a stripper 120 as a coil moving mechanism, a wedge guide 130 shown in FIGS. It comprises a connecting member 143, a guide 150, a changing mechanism 160, and an alignment tool 170 shown in FIGS.
  • the blade 110 holds the coil 10.
  • FIG. The blades 110 are arranged radially inside the stator core 20 and radially outside the stripper 120 in the circumferential direction of the stator core 20 and extend in the axial direction of the stator core 20 . Blades 110 facilitate insertion of coil 10 into slot 21 .
  • Blade 110 moves axially.
  • the blade 110 of this embodiment is a movable blade that moves in the axial direction.
  • Blades 110 are arranged side by side in the circumferential direction of stator core 20 .
  • the blade 110 is arranged via multiple teeth 23 .
  • the plurality of blades 110 are arranged on the same circumference corresponding to the teeth 23 .
  • Two blades 110 hold one coil side.
  • the blade 110 guides the coil 10 hooked on a stripper 120 (to be described later) to the slot 21 along the axial and radial directions.
  • Blade 110 has a shape that is positioned in slot opening 22 .
  • the blade 110 is a rod-shaped member extending in the axial direction.
  • the radially outer edge of the blade 110 of the present embodiment is located radially inward of the radially inner edge of the stator core 20, but may be located radially outward of the radially inner edge of the stator core 20. good.
  • the stripper 120 is a coil moving mechanism that moves the coil 10 .
  • the stripper 120 is arranged radially inside the stator core 20 and moves axially.
  • the stripper 120 inserts the coil 10 from one side in the axial direction to the other side.
  • a stripper 120 contacts the coil 10 .
  • a part of the coil 10 is inserted into the slot 21 through the slot opening 22 while the coil 10 is axially moved inside the stator core 20 in the radial direction by the stripper 120 .
  • the stripper 120 hooks the radially inner side of the coil 10 and pulls up the coil 10 along the blade 110 .
  • the stripper 120 may move along with the blade 110 to the other side in the axial direction, or may not move along with the blade 110 in the other side in the axial direction. In the latter case, the blade 110 moves to the other side in the axial direction before the stripper 120 does.
  • the radial inner side of the annular coil 10 is hooked on the stripper 120 .
  • the diameter of the stripper 120 where the coil is hooked is the distance between the blades 110 that hold the coil 10 .
  • the radially outer edge of the stripper 120 of the present embodiment is located radially inward of the radially inner edge of the stator core 20 , but may be located radially outwardly of the radially inner edge of the stator core 20 . good.
  • Stripper 120 has a shape that is positioned in slot open 22 .
  • the end portion of the stripper 120 on the other side in the axial direction is hemispherical.
  • the end surface of the stripper 120 on the other side in the axial direction is a curved surface.
  • the wedge guide 130 shown in FIGS. 5 to 7 accommodates the wedge 30 .
  • Wedge guide 130 guides wedge 30 into slot 21 .
  • the wedge guide 130 is arranged on one axial side of the stator core 20 and arranged between adjacent slots 21 . Wedge guide 130 extends axially.
  • the ring member 141 is connected to the outer peripheral side of the wedge guide 130 .
  • the ring member 141 is attached to the outer peripheral surface of a holder attached to one axial end of the wedge guide 130 .
  • the holding portion 142 is arranged radially outward of the ring member 141 .
  • the holding portion 142 has a ring shape.
  • the holding portion 142 holds a first guide 151 and a second guide 152, which will be described later. Thereby, the coil insertion device 100 that adjusts the position in the first direction and the position in the second direction of the coil 10 can be easily realized.
  • the holding portion 142 is connected to the ring member 141 by a connecting member 143 .
  • the connecting member 143 connects the outer peripheral portion of the ring member 141 and the inner peripheral portion of the holding portion 142 .
  • a plurality of connecting members 143 radially extend radially outward from the ring member 141 . 5-7, four connecting members 143 are arranged in a cross.
  • the connection member 143 is, for example, a rod-shaped member.
  • the guide 150 is on one side of the stator core 20 in the axial direction, through which the coil 10 passes in the axial direction and guides the movement of the coil 10 in the axial direction.
  • the guide 150 can guide the axial movement of the coil on one axial side of the stator core 20 . Therefore, the position-adjusted coil 10 can be inserted into the slot 21 . Therefore, it is possible to prevent the coil 10 from protruding from the wedge 30 .
  • Guide 150 forms a path for coil 10 to reach slot 21 .
  • the coil 10 passes through the guide 150 .
  • the guide 150 plays a role of adjusting the shape of the coil 10 without plastically deforming it.
  • Guide 150 controls the width and thickness of coil 10 .
  • Guide 150 includes a first guide 151, a second guide 152, and a guide plate.
  • the first guide 151 guides the position of the coil 10 in the first direction.
  • the width of the coil 10 in the first direction can be adjusted by the first guide 151 .
  • the first direction is the circumferential direction.
  • the first guide 151 has a plurality of projections 151a projecting in a second direction intersecting the first direction.
  • the protrusions 151a are arranged in the first direction when viewed from the axial direction. Thereby, the first guide for adjusting the position of the coil in the first direction can be easily realized.
  • the second direction is the radial direction.
  • the projecting portion 151a has a surface normal to the first direction.
  • the width of the coil 10 in the first direction can be easily adjusted by sandwiching the coil in the first direction with the projections 151a.
  • the projecting portion 151a is plate-shaped.
  • the projecting portion 151a has a surface facing the circumferential direction. That is, the projecting portion 151a extends in the radial direction.
  • the protruding portion 151a is arranged at a position 40 mm to 70 mm, preferably 60 mm to 70 mm away from one axial end surface of the stator core 20 .
  • the two protrusions 151a sandwich the coil 10 in the circumferential direction.
  • the first guides 151 sandwich both circumferential sides of one coil side portion.
  • the projecting portion 151 a contacts the coil side portion of the coil 10 .
  • the two projections 151a push the coil 10 radially inward.
  • the second guide 152 guides the position of the coil 10 in the second direction.
  • the radial width of the coil 10 can be adjusted by the second guide 152 .
  • the second guide 152 is connected with the first guide 151 .
  • the second guide 152 is arranged radially outside the first guide 151 . 5 to 7, two projecting portions 151a are attached to both ends of the second guide 152 in the circumferential direction and radially inward. The position of the protrusion 151a relative to the second guide 152 can be adjusted.
  • the guide 150 may open radially, circumferentially, or the like.
  • the guide 150 of this embodiment opens radially inward.
  • two protruding portions 151a and one second guide 152 form a structure that opens radially inward.
  • a coil 10 is passed through the opening.
  • the radial position and axial position of the first guide 151 and the second guide 152 are controlled based on the circumferential position of the first guide 151 and the second guide 152 . That is, the radial and axial positions of the first guide 151 and the second guide 152 are controlled based on the position of the slot 21 . Thereby, the position of the coil 10 to be inserted can be adjusted for each slot 21 . Therefore, when inserting the U-phase, V-phase and W-phase coils 10, the positions of the first guide 151 and the second guide 152 can be set individually.
  • the first guide 151 and the second guide 152 are held by the holding portion 142 . Thereby, the coil insertion device 100 that adjusts the position in the first direction and the position in the second direction of the coil 10 can be easily realized.
  • the guide 150 of this embodiment includes a plurality of first guides 151 and a plurality of second guides 152 . Thereby, the positions of the portions of the coil 10 that are inserted into the slots 21 can be adjusted.
  • the first guide 151 and the second guide 152 are held by the holding section 142 via the changing mechanism 160.
  • the first guide 151 is connected to this second guide 152 .
  • the guide plate 153 extends radially and axially. After the coil 10 is guided to a predetermined position by the guide plate 153, the position of the coil 10 can be adjusted by the first guide 151 and the second guide 152 at the predetermined position. Therefore, the accuracy of adjusting the position of the coil 10 can be improved.
  • the guide plate 153 is a rough guide for roughly determining the position of the coil 10 .
  • a plurality of guide plates 153 are arranged.
  • the guide plate 153 extends radially outward from the ring member 141 .
  • Two adjacent guide plates 153 form a substantially V shape in a cross-sectional view. Two adjacent guide plates 153 sandwich the outer sides of the two coil sides in the circumferential direction.
  • the change mechanism 160 changes the position of the guide 150 .
  • a change mechanism 160 allows the position of the guide 150 to be easily controlled.
  • the change mechanism 160 adjusts the position of the coil 10 by changing, for example, at least one position of the guide 150 in the axial direction, the radial direction, the circumferential direction, and the direction intersecting these directions.
  • the changing mechanism 160 adjusts the position, width, etc. of the first guide 151 and the second guide 152 .
  • the changing mechanism 160 changes the protrusion 151a in the second direction.
  • the changing mechanism 160 changes the radial position of the projection 151 a connected to the second guide 152 by changing the radial position of the second guide 152 .
  • the change mechanism 160 includes a movement mechanism that radially moves the first guide 151 and the second guide 152 .
  • the moving mechanism allows the positions of the first guide 151 and the second guide 152 to be easily controlled.
  • the moving mechanism is, for example, a cylinder and has a rod 161 and a piston 162 .
  • a rod 161 is attached to the second guide 152 .
  • the piston 162 is supplied with air to move the rod 161 radially inward and outward. Therefore, by moving the rod 161 in the radial direction with the piston 162, the radial position of the second guide 152 can be adjusted. Therefore, the moving mechanism moves the projecting portion 151a connected to the second guide 152 in the projecting direction.
  • a change mechanism 160 is connected to the holding portion 142 . 5-7, piston 162 is attached to retainer 142. In FIGS.
  • the alignment tool 170 holds the plurality of blades 110 on the other side in the axial direction. Alignment tool 170 moves along with blade 110 to the other side in the axial direction.
  • FIG. 1 The coil insertion method of this embodiment is a method of inserting the coil 10 using the coil insertion device 100 described above. 2 to 7, illustration of the insulating paper 40 is omitted.
  • the coil 10 is molded (step S1).
  • the coil 10 is formed by winding the coil wire using a winding frame having a circumferential width smaller than the circumferential spacing between the slots 21 .
  • the coil insertion device 100 is installed on the stator core 20 (step S2).
  • step S1 as shown in FIG. 2, the coil 10 and the coil insertion device 100 are arranged on one side of the stator core 20 in the axial direction.
  • the coil 10 is arranged so as to be held between a plurality of blades 110 .
  • a U-phase coil 10 is arranged.
  • a stripper 120 is arranged at the center in the radial direction of the plurality of blades 110 and on one side in the axial direction.
  • the wedge 30 is positioned so as to be supported by the wedge guide 130 and wedge pusher (not shown).
  • the stripper 120 is moved from one side in the axial direction to the other side (step S3).
  • the stripper 120 moves to the other side in the axial direction together with the blade 110.
  • the wedge guide 130 is moved from one side to the other side in the axial direction.
  • the axial movement of the coil 10 is guided on one side of the stator core 20 in the axial direction by the guide 150 through which the coil 10 passes in the axial direction.
  • the guide plates 153 extending in the radial direction and the axial direction sandwich the two sides of the coil 10 in the circumferential direction.
  • the positions of the first guide 151 and the second guide 152 are changed by the changing mechanism 160 attached to the holding portion 142 .
  • the radial position of the second guide 152 is changed by the moving mechanism.
  • a moving mechanism changes the radial position of the second guide 152 .
  • One coil side portion of the coil 10 is sandwiched in the circumferential direction by the two projecting portions 151 a of the first guide 151 connected to the second guide 152 .
  • the radial position and the circumferential position of the coil 10 can be adjusted by the first guide 151 and the second guide 152 .
  • the position of the guide 150 is controlled according to the movement of the coil 10 to the other side in the axial direction by the stripper 120 .
  • the piston 162 of the changing mechanism 160 moves the rod 161 radially inward.
  • the first guide 151 and the second guide 152 are moved radially inward.
  • the radial positions of the first guide 151 and the second guide 152 can be adjusted according to the axial position of the coil 10 .
  • coil 10 is moved from the axial position shown in FIG. 5 to the axial position shown in FIGS. 3 and 6 and to the axial position shown in FIGS. Moving. Thereby, the U-phase coil 10 can be inserted into the slot 21 of the stator core 20 (step S4). Also, the wedge 30 can be inserted into the slot 21 by moving a wedge pusher (not shown).
  • steps S1 to S4 are performed for the V-phase coil 10 and the W-phase coil 10 in the same manner as described above.
  • the radial and axial positions of the first guide 151 and the second guide 152 are set in the circumferential direction of the first guide 151 and the second guide 152. Controlled based on position. That is, the positions of the first guide 151 and the second guide 152 can be adjusted for each slot 21 of the U-phase, V-phase, and W-phase coils 10 . Thereby, the position of the coil 10 inserted in each slot 21 of each phase can be adjusted. In this manner, the V-phase coil 10 and the W-phase coil 10 are inserted into the slots 21 .
  • step S5 the coil insertion device 100 is removed from the stator core 20. Specifically, the stripper 120 is moved toward one side in the axial direction.
  • step S5 By performing the above steps (steps S1 to S5), the coils 10 and the wedges 30 can be inserted into the plurality of slots 21 penetrating the stator core 20 in the axial direction. As a result, the stator 1 shown in FIG. 1 can be manufactured.
  • a step of covering the coil 10 inserted into the slot 21 with the insulating paper 40 is further included.
  • the insulating paper 40 may be placed in the slot 21 in advance, and the coil 10 may be inserted into the slot 21 .
  • the coil 10 covered with insulating paper 40 may be inserted into the slot 21 .
  • the large and small coils mean having a small annular coil and a large annular coil including the small coil.
  • the coil insertion device 100 of the present embodiment can guide the axial movement of the coil 10 on one side of the stator core 20 in the axial direction by the guide 150 . Therefore, the position-adjusted coil 10 can be inserted into the slot 21 . Therefore, it is possible to prevent the coil 10 from protruding from the wedge 30 in the slot 21 .
  • the bulge of the coil 10 in the width direction can be suppressed by the first guide. Therefore, it is possible to effectively prevent the coil 10 from protruding from the wedge 30 in the slot 21 as shown in FIG.
  • the two slots 21 into which the coil is inserted are one slot 21 and the other slot 21 sandwiching four slots 21. Not limited.
  • Stator 10 Coil 20: Stator core 21: Slot 22: Slot open 30: Wedge 40: Insulating paper 100: Coil insertion device 110: Blade 120: Stripper 130: Wedge guide 141: Ring member 142: Holding portion 150: Guide 151 : First guide 151a : Protruding part 152 : Second guide 153 : Guide plate 160 : Change mechanism

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Windings For Motors And Generators (AREA)
PCT/JP2021/048732 2021-03-24 2021-12-28 コイル挿入装置 WO2022201724A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021050123A JP2022148441A (ja) 2021-03-24 2021-03-24 ステータ及びステータの製造方法
JP2021-050123 2021-03-24

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Publication Number Publication Date
WO2022201724A1 true WO2022201724A1 (ja) 2022-09-29

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592549A (ja) * 1982-06-25 1984-01-09 Hitachi Ltd 磁気鉄心のスロット内にコイルとウエッジを插入する装置
JP2020156299A (ja) * 2019-03-22 2020-09-24 日本電産株式会社 コイル挿入装置及びコイル挿入方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105706339B (zh) * 2013-11-12 2019-06-21 日立汽车系统株式会社 定子及具备该定子的旋转电机
CN108370203B (zh) * 2015-11-17 2019-11-29 三菱电机株式会社 线圈成形装置以及线圈成形方法
JP6852799B2 (ja) * 2017-09-29 2021-03-31 日立金属株式会社 ラジアルギャップ型回転電機及びその製造方法、回転電機用ティース片の製造装置、回転電機用ティース部材の製造方法
JP6640910B2 (ja) * 2018-05-15 2020-02-05 三菱電機株式会社 回転電機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592549A (ja) * 1982-06-25 1984-01-09 Hitachi Ltd 磁気鉄心のスロット内にコイルとウエッジを插入する装置
JP2020156299A (ja) * 2019-03-22 2020-09-24 日本電産株式会社 コイル挿入装置及びコイル挿入方法

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JP2022148441A (ja) 2022-10-06
TW202241017A (zh) 2022-10-16

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