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公开(公告)号：US20220360151A1
公开(公告)日：2022-11-10
申请号：US17869189
申请日：2022-07-20
发明人： Noboru WAKEBE , Yuji MIYAZAKI
IPC分类号： H02K15/085
摘要： First receiving recesses for receiving distal end portions of slot insertion portions of normal coil segments, and second receiving recesses for receiving distal end portions of long slot insertion portions of variant coil segments are formed at circumferential intervals on outer peripheral surface of an inner twisting jig corresponding to the innermost layer. In a state where the distal end portions of the long slot insertion portions before being twisted are inserted into the second receiving recesses, the first receiving recesses are at positions displaced in the circumferential direction with respect to the distal end portions to be housed therein. Primary twisting is performed by rotating the inner twisting jig in this state, and then the distal end portions of the normal coil segments are inserted into the first receiving recesses and the secondary twisting is performed with a rotational amount larger than that of the primary twisting.
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公开(公告)号：US20210006140A1
公开(公告)日：2021-01-07
申请号：US17026943
申请日：2020-09-21
发明人： Noburo MIYAWAKI , Ryo HONDA
IPC分类号： H02K15/06
摘要： An example of a positioning apparatus has a base member configured to support a stator core, a positioning tool disposed on its upper surface, and a driving mechanism for driving it. The positioning tool has a first plate and a second plate. The first plate has an inner side ring and an annular plate body fixed to the upper surface thereof, and the second plate has an outer side ring and a plate body fixed to the upper surface thereof. Insertion holes each configured to accept insertion of one of distal end pairs are formed on the plate bodies, respectively, and positioning is performed by rotating these plate bodies in opposite directions. Positions of the distal end pairs are aligned in the radial direction without the positioning tool, and then the positioning tool is set.
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公开(公告)号：US20200328646A1
公开(公告)日：2020-10-15
申请号：US16913732
申请日：2020-06-26
发明人： Noburo MIYAWAKI
摘要： Coil segments of the same phase are inserted into each group of circumferentially consecutive three slots. Assuming that the grouped three slots are A, B, and C, and six groups are U1 to U6, respectively, and that slot y of group Ux are slot Uxy, a coil starting from the slot U1A is wired to pass through one turn of a stator in the order of slots U1A→U2B→U3B→U4C→U5C→U6A, and connected to slot U1A of the next turn. In this turn, coil segments with a wide straddle width are used for the connections of U1A→U2B and U3B→U4C, and a coil segment with a narrow straddle width is used for the connection of U5C→U6A.
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公开(公告)号：US20200303999A1
公开(公告)日：2020-09-24
申请号：US16892864
申请日：2020-06-04
发明人： Yuji MIYAZAKI , Noburo MIYAWAKI
IPC分类号： H02K15/04
摘要： A cutting unit has a support member having insertion holes, and a movable member having through holes connected thereto. The respective left sides of upper surfaces of the square through holes are first movable blades, and the respective right sides thereof are second movable blades. Firstly, the movable member 14 is moved to the right by a predetermined amount to cut peeled-off portions of segment end portions only, and then the movable member is moved to the left by a predetermined amount to cut peeled-off portions of the segment end portions only. Distal ends of the coil segments can be cut into a uniform length to enable high quality welding, through this process.
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公开(公告)号：US12107466B2
公开(公告)日：2024-10-01
申请号：US17869189
申请日：2022-07-20
发明人： Noboru Wakebe , Yuji Miyazaki
IPC分类号： H02K15/085
CPC分类号： H02K15/085
摘要： First receiving recesses for receiving distal end portions of slot insertion portions of normal coil segments, and second receiving recesses for receiving distal end portions of long slot insertion portions of variant coil segments are formed at circumferential intervals on outer peripheral surface of an inner twisting jig corresponding to the innermost layer. In a state where the distal end portions of the long slot insertion portions before being twisted are inserted into the second receiving recesses, the first receiving recesses are at positions displaced in the circumferential direction with respect to the distal end portions to be housed therein. Primary twisting is performed by rotating the inner twisting jig in this state, and then the distal end portions of the normal coil segments are inserted into the first receiving recesses and the secondary twisting is performed with a rotational amount larger than that of the primary twisting.
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公开(公告)号：US11677302B2
公开(公告)日：2023-06-13
申请号：US16872872
申请日：2020-05-12
发明人： Tomomi Iwamoto , Yutaka Ishizuka
IPC分类号： H02K15/085 , H02K15/04
CPC分类号： H02K15/085 , H02K15/0421
摘要： Grooves are formed at equal intervals in the circumferential direction on an outer peripheral edge of a circular block, and inner rods are housed in these grooves and arranged to be movable radially along radial directions. The outer rods are provided to be movable radially along radial directions, and respectively face the inner rods. Respective one slot insertion portions of coil segments are inserted into gaps between the inner rods and also into the holding member. The respective other slot insertion portions are inserted into gaps between the outer rods. Thereafter, the whole outer rods are rotated to rotate the coil segments around the slot insertion portions, then the holding member is lowered, and the whole outer rods are further rotated without interference between the holding member and the slot insertion portions to bring the coil segments into close contact with one another.
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公开(公告)号：US11575289B2
公开(公告)日：2023-02-07
申请号：US16913732
申请日：2020-06-26
发明人： Noburo Miyawaki
摘要： Coil segments of the same phase are inserted into each group of circumferentially consecutive three slots. Assuming that the grouped three slots are A, B, and C, and six groups are U1 to U6, respectively, and that slot y of group Ux are slot Uxy, a coil starting from the slot U1A is wired to pass through one turn of a stator in the order of slots U1A→U2B→U3B→U4C→U5C→U6A, and connected to slot U1A of the next turn. In this turn, coil segments with a wide straddle width are used for the connections of U1A→U2B and U3B→U4C, and a coil segment with a narrow straddle width is used for the connection of U5C→U6A.
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公开(公告)号：US10944311B2
公开(公告)日：2021-03-09
申请号：US16458491
申请日：2019-07-01
发明人： Yuji Miyazaki , Noburo Miyawaki
IPC分类号： H02K15/00 , H02K15/095 , B21F3/02
摘要： A nozzle turning apparatus includes a nozzle unit that has a nozzle for sending out a wire from a tip end thereof and a nozzle holder for holding the nozzle, the nozzle unit rotatably supporting the nozzle holder, and a nozzle-holder drive member integrally provided with the nozzle unit and moved in the nozzle unit to rotate the nozzle holder. The nozzle-holder drive member is driven to turn the nozzle from a winding state to a wire processing state after a winding operation is finished. Particularly, according to the present invention, the nozzle turning apparatus includes inner unit-drive means integrally provided with the nozzle unit in the nozzle unit, for moving the nozzle-holder drive member, and outer unit-drive means independently provided from the nozzle unit outside the nozzle unit, for driving the inner unit-drive means so as to move the nozzle-holder drive member.
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公开(公告)号：US11621618B2
公开(公告)日：2023-04-04
申请号：US16872744
申请日：2020-05-12
发明人： Yuji Miyazaki , Noburo Miyawaki
摘要： The innermost first segment layer and the second segment layer adjacent thereto in a radial direction are twisted using a twisting jig unit including an inner twisting jig and an outer twisting jig, then the twisting jig unit is replaced with another twisting jig unit including an inner twisting jig and an outer twisting jig, and the third segment layer and the fourth segment layer adjacent thereto are twisted, and then the twisting jig unit is replaced with still another twisting jig unit including an inner twisting jig and an outer twisting jig, and the fifth segment layer and the sixth segment layer adjacent thereto are twisted.
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公开(公告)号：US11349378B2
公开(公告)日：2022-05-31
申请号：US16892864
申请日：2020-06-04
发明人： Yuji Miyazaki , Noburo Miyawaki
IPC分类号： H02K15/04
摘要： A cutting unit has a support member having insertion holes, and a movable member having through holes connected thereto. The respective left sides of upper surfaces of the square through holes are first movable blades, and the respective right sides thereof are second movable blades. Firstly, the movable member 14 is moved to the right by a predetermined amount to cut peeled-off portions of segment end portions only, and then the movable member is moved to the left by a predetermined amount to cut peeled-off portions of the segment end portions only. Distal ends of the coil segments can be cut into a uniform length to enable high quality welding, through this process.
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