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公开(公告)号：US11165312B2
公开(公告)日：2021-11-02
申请号：US15303984
申请日：2014-04-14
发明人： Hirooki Tokoi , Shuuichi Takahashi , Yasuei Yoneoka , Toshifumi Suzuki , Toru Sakai , Katsuyuki Yamazaki , Norihisa Iwasaki , Ryousou Masaki , Yuji Enomoto
摘要： This invention reduces the shaft voltage of an axial-air-gap dynamo-electric machine while ensuring high output and high efficiency. Said axial-air-gap dynamo-electric machine comprises the following: a stator comprising a plurality of stator cores, each of which comprises a core and a coil, arranged in a circle around a shaft; a housing, the inside surface of which faces the stator radially; and at least one rotor, the surface of which faces the surface of the stator with a prescribed air gap interposed therebetween in the radial direction of the shaft. The rotor has, on the outside thereof, a conductive section comprising a conductive member. This axial-air-gap dynamo-electric machine has a first region where the inside surface of the housing faces the aforementioned conductive section radially and a second region, closer to the stator than the first region is, that extends to the coil side surfaces that face the rotor. The proportion of connecting wires in the second region is higher than in the first region.
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公开(公告)号：US11139714B2
公开(公告)日：2021-10-05
申请号：US16475736
申请日：2017-01-31
发明人： Yasuei Yoneoka , Shuuichi Takahashi , Toshifumi Suzuki , Toru Sakai , Katsuyuki Yamazaki , Daisaku Takahashi , Daisuke Kurai
摘要： A conventional axial gap rotary electric machine does not consider winding movement caused by resin molding in the vicinity of a lead-out part provided to a housing. In order to solve the problem, the axial gap rotary electric machine according to the present invention includes a stator which is formed by circularly arranging a plurality of core units having coils about a rotation shaft and which has a connecting wire that fastens, for each layer, coil rising wires from the plurality of core units, and the axial gap rotary electric machine has a configuration in which: the housing has a lead-out part through which the connecting wire is taken out to the outside of the housing; and the stator is arranged such that the region where the coil rising wire from the core unit is fastened with the connecting wire is located so as to avoid the region opposed to the lead-out part, the stator being integrally molded.
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公开(公告)号：US11050316B2
公开(公告)日：2021-06-29
申请号：US16099937
申请日：2017-01-27
发明人： Yasuei Yoneoka , Shuuichi Takahashi , Toshifumi Suzuki , Katsuyuki Yamazaki , Daisaku Takahashi , Daisuke Kurai , Jun Sakurai
摘要： There is provided an axial gap rotary electric machine which includes a stator in which a plurality of core units, the core units having a core, a winding disposed in an outer periphery of the core, and a bobbin disposed between the core and the winding, are arranged in an annular shape about a rotation shaft, at least one rotor which faces an end surface of the core in an axial direction through a gap, a rotation shaft which rotates together with the rotor, and a housing in which the stator and the rotor are stored. A wiring fixing member is provided in an end surface and on an outer side of the stator in the axial direction, and includes an outer wall and an inner wall extending in a circumferential direction along a circumferential outer shape of the stator. The stator includes a crossover wire which leads the winding from the core unit. The crossover wire is disposed between the outer wall and the inner wall of the wiring fixing member. At least a part of the end surface of the inner wall on a side near the stator in the axial direction abuts on the bobbin.
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公开(公告)号：US10886803B2
公开(公告)日：2021-01-05
申请号：US16329837
申请日：2017-01-31
发明人： Shuuichi Takahashi , Yasuei Yoneoka , Toshifumi Suzuki , Toru Sakai , Katsuyuki Yamazaki , Daisaku Takahashi , Daisuke Kurai , Jun Sakurai
摘要： This axial gap-type rotary electrical machine has: a stator in which a plurality of core units each configured from a core, a coil, and a bobbin are disposed, centered around a rotating shaft, in an annular shape along the inner circumferential surface of a housing; and a rotor that is face-to-face with a cross-sectional surface of the core through a predetermined gap in a radial direction of the rotating shaft. The bobbin is formed in a cylindrical shape, has flange parts extending a predetermined amount in the outer circumferential direction at the top and bottom of the cylindrical shape, is provided with notch sections on the tip part in the inner circumferential direction of the flange part of the bobbin, and forms an acute angle. In addition, approximately circular notch sections are formed on adjacent side surface portions of the bobbin in the outer circumferential direction of the bobbin. Accordingly, when forming the stator by means of molding, a resin mold is made to easily flow, and damage to the bobbin of the core unit can be avoided.
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公开(公告)号：US10992203B2
公开(公告)日：2021-04-27
申请号：US16097738
申请日：2016-05-18
发明人： Hirooki Tokoi , Shuuichi Takahashi , Yasuei Yoneoka , Toshifumi Suzuki , Kenji Uzawa , Katsuyuki Yamazaki , Toru Sakai , Ryousou Masaki
摘要： The purpose of the present invention is to ensure reliability and installation space reduction of crossover wires of an axial gap type rotary electric machine. An axial gap type rotary electric machine having: a stator which is constructed by annularly arranging multiple core units about an axis of rotation, each of the core units having at least a core, windings disposed around the outer periphery of the core, and crossover wires leading out from the windings; at least one rotor which faces an axial end surface of the cores with a gap therebetween; and a rotary shaft which rotates along with the rotor. The axial end surface side and the outer diameter side of the stator, is provided with multiple wiring support sections, each having an arc-shaped base part extending in a rotational direction along the annular shape of the outer diameter side of the stator, wherein the base part has a length extending over the outer diameter-side end surfaces of two or more adjoining core units and a predetermined axial width, and is equipped with multiple axial grooves for guiding the crossover wires in the rotational direction which are disposed on the opposite surface of the base from the rotary shaft. The rotary electric machine has a molding resin for integrally molding the wiring support sections with the stator.
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公开(公告)号：US11251670B2
公开(公告)日：2022-02-15
申请号：US15305706
申请日：2014-04-23
发明人： Hirooki Tokoi , Daisuke Kitajima , Tomonori Kawagoe , Katsuyuki Yamazaki , Toru Sakai , Shuuichi Takahashi , Toshifumi Suzuki , Norihisa Iwasaki , Ryousou Masaki , Yuji Enomoto
摘要： An axial air-gap rotary electric machine includes a stator, a coil, and a bobbin. The bobbin includes a tube and a flange. The coil is wound on the outer periphery of the tube portion with regular winding. A number of turns of each of a plurality of layers wound around an external side of a last layer in contact with the flange is at least one less than a number of turns of each of a plurality of layers wound around an adjacent internal side of the last layer.
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公开(公告)号：US11114916B2
公开(公告)日：2021-09-07
申请号：US16301125
申请日：2017-01-27
摘要： The present invention makes full use of the advantages of a resin molded stator while pursuing advantages related to performance, reliability, and workability. Provided is an axial gap-type rotary electric machine comprising: a stator in which a plurality of core units having a magnetic flux surface in the rotational axis direction are arranged annularly around the rotational axis; a rotor facing the magnetic flux surfaces of the stator in the axial direction; a housing comprising an inner cylinder space in which the stator is accommodated; and a molded resin that covers part or all of the stator and integrally connects the stator and the inner circumference of the inner cylinder space. The housing comprises an annular thick wall section that has a predetermined thickness toward the axial center side and that follows the inner circumference in part of the inner circumference of the inner cylinder space. The axial boundary of the molded resin and the inner circumference of the inner cylinder space is included within the area of a radial projection surface of the thick wall section.
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公开(公告)号：US10530210B2
公开(公告)日：2020-01-07
申请号：US15303055
申请日：2014-04-11
发明人： Hirooki Tokoi , Shuuichi Takahashi , Yasuei Yoneoka , Toshifumi Suzuki , Toru Sakai , Katsuyuki Yamazaki , Ryousou Masaki , Norihisa Iwasaki , Yuji Enomoto
摘要： To ensure ready assembly of a stator and reliably reduce the shaft voltage in an axial air gap rotating electric machine, an axial air gap rotating electric machine has a circular ring-shaped stator formed by a plurality of stator cores arranged about a rotational axis direction in a ring shape. Each stator core comprises a tubular bobbin and a coil, with the tubular bobbin having an iron core inserted into a bobbin inner tubular portion substantially matching the peripheral shape of the iron core. The axial air gap rotating electric machine has a first conductive member having a horizontal portion and a vertical portion contacting the end surface of the bobbin opening portion. The horizontal portion contacts parts of the iron core outer peripheral surface and the inner peripheral surface of the bobbin inner tubular portion, and the vertical portion is conductively connected to the inner circumferential housing surface.
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公开(公告)号：US10454325B2
公开(公告)日：2019-10-22
申请号：US15305499
申请日：2014-04-21
发明人： Shuuichi Takahashi , Hirooki Tokoi , Toru Sakai , Katsuyuki Yamazaki , Toshifumi Suzuki , Jun Sakurai , Tomonori Kawagoe , Daisaku Takahashi
摘要： The present invention ensures reliability while reducing the size of an axial air gap rotating electric machine. An axial air gap rotating electric machine has: a stator comprising a plurality of core members arranged in a ring shape, said core members each having an iron core, a coil wound in an iron core outer periphery direction, and a bobbin disposed between the iron core and the coil; and a rotor plane-facing an end surface of the iron core via an air gap in a rotating shaft radial direction. The bobbin has: a tubular portion facing the outer peripheral side surface of the iron core and shorter than the length of the iron core; flange portions extending in the vicinity of both ends of the tubular portion from the outer periphery of the tubular portion toward the vertical direction outside by a predetermined length; and a projection portion being on the outside surface of at least one of the flange portions and near the inner edge of the tubular portion, having an inner peripheral surface facing the end outer peripheral side surface of the inserted iron core, and further projecting in an extending direction of the tubular portion.
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公开(公告)号：US10523100B2
公开(公告)日：2019-12-31
申请号：US15305464
申请日：2014-12-08
发明人： Hirooki Tokoi , Shuuichi Takahashi , Yasuei Yoneoka , Shinya Yamaji , Toshifumi Suzuki , Katsuyuki Yamazaki , Toru Sakai , Ryousou Masaki
摘要： The present invention provides an axial air-gap rotary electric machine with which it is possible to achieve downsizing and increased output as well as an improvement in the support strength of a molded resin and housing and a reduction in the manufacturing cost of the housing. Provided is an axial air-gap rotary electric machine having: a stator in which a plurality of core members, which have at least an iron core and a coil, are arranged in a circular shape centered around a rotating shaft and curved around the inner peripheral surface of a housing; and a rotor that faces an end surface of the iron core with a prescribed air gap therebetween in the radial direction of the rotating shaft. Therein, the housing has, in the surface facing the stator, a hole that communicates with the outside, and the stator has a resin molded portion formed by filling a resin into at least the surface of the core members facing the inner peripheral surface of the housing, and into the hole, and molding integrally.
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