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公开(公告)号：US11108307B2
公开(公告)日：2021-08-31
申请号：US16141282
申请日：2018-09-25
发明人： Keiichiro Oka
IPC分类号： H02K3/04 , H02K3/14 , H02K15/02 , H02K1/14 , H02K15/06 , H02K1/16 , H02K15/085 , H02K3/28 , H02K15/04 , H02K3/12
摘要： A coil (1) for a rotary electric machine is annularly formed by twelve coil members (10), each coil member (10) is configured of four coil elements (10A) to (10D), the coil elements (10A) to (10D) integrally include a plurality of sets of coil element structures each set of coil element structures including a pair of base portions (11), and four arm portions (12) and two curl portions (13), and the plurality of sets of coil element structures are annularly configured.
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公开(公告)号：US10951079B2
公开(公告)日：2021-03-16
申请号：US16263186
申请日：2019-01-31
发明人： Keiichiro Oka , Kenichi Omagari , Takahiro Ide
摘要： A coil for a rotary electric machine is mounted in a plurality of slots of a stator core having the slots in a circumferential direction. An overlapping coil-type wave winding coil constituted by a coil wire having a plurality of slot accommodating portions accommodated in the slots and a plurality of coil end portions interconnecting, in a chevron shape, the slot accommodating portions next to each other outside the slots in an axial direction of the stator core constitutes the coil. At least two layers of the coil wire are connected by a continuous wire-based connecting portion, folded back in the connecting portion, and stacked.
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公开(公告)号：US20190222104A1
公开(公告)日：2019-07-18
申请号：US16241201
申请日：2019-01-07
发明人： Keiichiro Oka
CPC分类号： H02K15/0478 , H02K3/12 , H02K3/28
摘要： A wave winding coil (9) has a first linear part (11a), second linear part (11b), arm part (12) and turn part (13). A retaining apparatus (1) retains the first linear part (11a) along the axis line direction between middle pins (3b, 3b) of a middle body part (3), and retains the second linear part (11b) between upper pins (2b, 2b), middle pins (3b, 3b), and lower pins (4b, 4b), in a state where sections of both ends of the second linear part (11b) in the axis line direction deviate to each other in circumferential opposite sides of the wave winding coil (9) to the axis line direction of the wave winding coil (9) and in a state where a bent angle θb′ between the second linear part (11b) and the connecting part is smaller than a bent angle θa′ between the first linear part (11a) and the connecting part.
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公开(公告)号：US20190305621A1
公开(公告)日：2019-10-03
申请号：US16362898
申请日：2019-03-25
发明人： Keiichiro Oka , Kazuhito Hiraga , Kenichi Omagari
摘要： The wound coil (7) includes first to fourth inner bases (11a) to (11d), first to fourth outer bases (12a) to (12d). The wound coil (7) includes first to fourth upper connection portions (16a) to (16d), first to third lower connection portions (17a) to (17c), and first to fourth winding portions (18a) to (18d). In the first to fourth winding portions (18a) to (18d), the third and fourth upper connection portions (16c) and (16d) are stacked on the first and second upper connection portions (16a) and (16b) in the circumferential direction D1 and the first and third lower connection portions (17a) and (17c) are continuously stacked on the second lower connection portion (17b) in the circumferential direction D1.
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公开(公告)号：US20190260249A1
公开(公告)日：2019-08-22
申请号：US16263186
申请日：2019-01-31
发明人： Keiichiro Oka , Kenichi Omagari , Takahiro Ide
摘要： A coil for a rotary electric machine is mounted in a plurality of slots of a stator core having the slots in a circumferential direction. An overlapping coil-type wave winding coil constituted by a coil wire having a plurality of slot accommodating portions accommodated in the slots and a plurality of coil end portions interconnecting, in a chevron shape, the slot accommodating portions next to each other outside the slots in an axial direction of the stator core constitutes the coil. At least two layers of the coil wire are connected by a continuous wire-based connecting portion, folded back in the connecting portion, and stacked.
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公开(公告)号：US20190103734A1
公开(公告)日：2019-04-04
申请号：US16140752
申请日：2018-09-25
IPC分类号： H02G1/12
摘要： The present invention relates to a method of coating-peeling and a coating-peeling apparatus. The method of coating-peeling includes a gripping step and a peeling step, and peels by a pair of peeling blades peeling target portions of an insulating coating covering peeling target side surfaces of a rectangular conductor wire. In the gripping step, abutting sections of a pair of gripping members abut on gripping target portions of the insulating coating, whereby the rectangular conductor wire is gripped between the abutting sections. In the peeling step, in a state where the rectangular conductor wire has been gripped by the gripping members, the peeling blades are moved relatively following a surface direction of the peeling target side surfaces while opposing each other sandwiching the peeling target side surfaces, whereby the peeling target portions are peeled.
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公开(公告)号：US20190099798A1
公开(公告)日：2019-04-04
申请号：US16142006
申请日：2018-09-26
IPC分类号： B21D28/32
摘要： A machining apparatus includes a movement direction converting mechanism that converts lowering movement of a first punch into raising movement of a second punch and converts lowering movement of the second punch into raising movement of the first punch. The first punch and the second punch are raised and lowered in an alternating manner by this movement direction converting mechanism. Accordingly, machining by the first punch and machining by the second punch are performed individually.
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公开(公告)号：US20190081540A1
公开(公告)日：2019-03-14
申请号：US16084835
申请日：2017-03-17
发明人： Keiichiro Oka , Yutaka Matsumoto
IPC分类号： H02K15/085 , H02K1/16 , H02K3/12
摘要： An electric conductor insertion device and insertion method with which the impact of variations in axial direction length of a stator core can be suppressed. An insertion device includes: a guide part that guides a leg part into a slot; a pair of expanding plates that extend in an insertion direction and are capable of expanding at the distal end side; a relative movement part that relatively moves the guide part or a stator core in the axial direction so that distal ends of the expanding plates are disposed on the inside of a protruding part of the insulation paper; a pressing part that presses a top surface of the stator core downwards in the axial direction; and an insertion movement part that inserts the leg part and presses the leg part in the insertion direction to insert the leg part into the slot.
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公开(公告)号：US11387720B2
公开(公告)日：2022-07-12
申请号：US16241201
申请日：2019-01-07
发明人： Keiichiro Oka
摘要： A wave winding coil (9) has a first linear part (11a), second linear part (11b), arm part (12) and turn part (13). A retaining apparatus (1) retains the first linear part (11a) along the axis line direction between middle pins (3b, 3b) of a middle body part (3), and retains the second linear part (11b) between upper pins (2b, 2b), middle pins (3b, 3b), and lower pins (4b, 4b), in a state where sections of both ends of the second linear part (11b) in the axis line direction deviate to each other in circumferential opposite sides of the wave winding coil (9) to the axis line direction of the wave winding coil (9) and in a state where a bent angle θb′ between the second linear part (11b) and the connecting part is smaller than a bent angle θa′ between the first linear part (11a) and the connecting part.
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公开(公告)号：US11018482B2
公开(公告)日：2021-05-25
申请号：US16140752
申请日：2018-09-25
IPC分类号： H02G1/12
摘要： The present invention relates to a method of coating-peeling and a coating-peeling apparatus. The method of coating-peeling includes a gripping step and a peeling step, and peels by a pair of peeling blades peeling target portions of an insulating coating covering peeling target side surfaces of a rectangular conductor wire. In the gripping step, abutting sections of a pair of gripping members abut on gripping target portions of the insulating coating, whereby the rectangular conductor wire is gripped between the abutting sections. In the peeling step, in a state where the rectangular conductor wire has been gripped by the gripping members, the peeling blades are moved relatively following a surface direction of the peeling target side surfaces while opposing each other sandwiching the peeling target side surfaces, whereby the peeling target portions are peeled.
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