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公开(公告)号：US20180048208A1
公开(公告)日：2018-02-15
申请号：US15783103
申请日：2017-10-13
Applicant: NIDEC CORPORATION
Inventor： Yoichi SEKII , Takehito TAMAOKA , Kazuhiro SATO , Kazuhiko FUKUSHIMA , Hiroyuki ABE
CPC classification number: H02K5/22 , G11B25/043 , H02K1/146 , H02K3/44 , H02K3/522 , H02K5/00 , H02K5/225 , H02K2203/03 , H02K2213/03
Abstract: A motor includes a stationary unit and a rotary unit. The stationary unit includes a stator, a base portion having at least one hole extending in the up-down direction, and a flexible wiring substrate. The flexible wiring substrate reaches a position higher than a lower surface of the base portion through at least one hole and is arranged to supply electric power to the stator. The flexible wiring substrate includes a connection portion arranged higher than the lower surface of the base portion and connected to the stator. The connection portion includes a solder portion arranged on a lower surface thereof to cover a portion of a lead wire extending from a coil of the stator. At least a portion of the solder portion is positioned within the hole.
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公开(公告)号：US20160190885A1
公开(公告)日：2016-06-30
申请号：US14835932
申请日：2015-08-26
Applicant: Nidec Corporation
Inventor： Hiroyuki ABE
CPC classification number: H02K3/28 , G11B17/02 , G11B19/2009 , H02K3/522 , H02K2203/06
Abstract: A spindle motor includes a stationary portion and a rotating portion arranged to rotate about a central axis extending in a vertical direction with respect to the stationary portion. The stationary portion includes a stator portion including a stator core including an annular core back and a plurality of tooth portions arranged to extend radially outward from the core back, and coils wound around the plurality of tooth portions; an outside surface press fitted to an inside surface of the core back; and a fixing member arranged at least on an upper surface of the core back. Conducting wires defining the coils include passage lines each of which is arranged to join different ones of the coils to each other; and lead wires each of which is drawn out from one of the coils, and is drawn out from an upper side of upper surfaces of the tooth portions to a lower side of lower surfaces of the tooth portions. Each of the passage lines and the lead wires is arranged radially outward of the inside surface of the core back. The fixing member is arranged to fix at least a portion of each passage line and at least a portion of each lead wire to the stator core.
Abstract translation: 主轴电动机包括固定部分和旋转部分，该旋转部分布置成围绕相对于静止部分在垂直方向延伸的中心轴线旋转。 固定部分包括定子部分，该定子部分包括定子芯，该定子芯包括一个环形芯背和多个设置成从芯背向径向向外延伸的齿部分，以及缠绕在多个齿部上的线圈; 外表面压配合到芯背的内表面; 以及至少设置在所述芯背的上表面上的固定构件。 限定线圈的导线包括通道线，每条线被布置成将不同线圈彼此连接; 以及从线圈中的一个引出的引线，并且从齿部的上表面的上侧向齿部的下表面的下侧拉出。 每个通道线和引线布置在芯背的内表面的径向外侧。 固定构件被布置成将每个通道的至少一部分和每个引线的至少一部分固定到定子芯上。
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公开(公告)号：US20160190875A1
公开(公告)日：2016-06-30
申请号：US14690587
申请日：2015-04-20
Applicant: Nidec Corporation
Inventor： Mitsuhiro TAKEMOTO , Tsuchitsugu WATANABE , Hiroyuki ABE
CPC classification number: G11B19/2009 , G11B19/20 , H02K1/187
Abstract: A stationary portion of a spindle motor includes a stator portion and an outside surface. The stator portion includes a stator core and coils. The outside surface extends in an axial direction parallel or substantially parallel to a central axis, and is centered on the central axis. The spindle motor includes a fixing portion at which an inside surface of the stator core and the outside surface are fixed to each other. The fixing portion includes a first press fit portion, a second press fit portion, and a gap arranged therein. The gap is located between the first press fit portion and the second press fit portion. The second press fit portion is located above the first press fit portion. At least a portion of the second press fit portion is located above a middle of the stator core in the axial direction.
Abstract translation: 主轴电动机的固定部分包括定子部分和外表面。 定子部分包括定子芯和线圈。 外表面沿着平行于或基本上平行于中心轴线的轴向方向延伸，并且在中心轴线上居中。 主轴电动机包括定子铁心的内表面和外表面彼此固定的固定部分。 固定部分包括第一压配合部分，第二压配合部分和布置在其中的间隙。 间隙位于第一压配合部分和第二压配合部分之间。 第二压配合部分位于第一压配合部分的上方。 第二压配合部的至少一部分位于定子芯的中心的轴向的上方。
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公开(公告)号：US20200274408A1
公开(公告)日：2020-08-27
申请号：US16646178
申请日：2018-07-23
Applicant: Nidec Corporation
Inventor： Akira ICHIEN , Hiroyuki ABE , Hideyuki KINJO
Abstract: First and second sets of magnet assemblies and magnetic assemblies are alternately arranged in a circumferential direction in a first portion along an axial direction, and the first and second sets are alternately arranged in the circumferential direction in a second portion along the axial direction. When viewed in the axial direction, the first set of the first portion and the second set of the second portion overlap with each other, and the second set of the first portion and the first set of the second portion overlap with each other.
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公开(公告)号：US20150170701A1
公开(公告)日：2015-06-18
申请号：US14629641
申请日：2015-02-24
Applicant: NIDEC CORPORATION
Inventor： Hiroyuki ABE , Takehito TAMAOKA , Kazuhiro SATO
CPC classification number: G11B19/2009 , H02K1/146 , H02K1/187 , H02K3/522 , H02K5/225 , H02K2213/03
Abstract: A stator includes a stator core and a plurality of coils. The stator core includes a core-back, a plurality of teeth portions, and a plurality of lug portions. Each of the plurality of teeth portions includes a coil winding portion and a tip end portion. The core-back includes a slanted portion. An axial position of a magnetic center of the rotor magnet radially outward of the stator overlaps with an axially extending range of the tip end portion. A thickness of the slanted portion in a direction perpendicular or substantially perpendicular to an upper surface of the slanted portion is smaller than an axial thickness of the coil winding portion.
Abstract translation: 定子包括定子芯和多个线圈。 定子芯包括芯背，多个齿部分和多个凸耳部分。 多个齿部分中的每一个包括线圈缠绕部分和末端部分。 芯背包括倾斜部分。 与定子的径向外侧的转子磁体的磁心的轴向位置与前端部的轴向延伸范围重叠。 倾斜部分在与倾斜部分的上表面垂直或基本垂直的方向上的厚度小于线圈缠绕部分的轴向厚度。
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Patent Agency Ranking
公开(公告)号：US20150108861A1
公开(公告)日：2015-04-23
申请号：US14587099
申请日：2014-12-31
Applicant: NIDEC CORPORATION
Inventor： Yoichi SEKII , Takehito TAMAOKA , Kazuhiro SATO , Kazuhiko FUKUSHIMA , Hiroyuki ABE
CPC classification number: H02K5/22 , G11B25/043 , H02K1/146 , H02K3/44 , H02K3/522 , H02K5/00 , H02K5/225 , H02K2203/03 , H02K2213/03
Abstract: A motor includes a stationary unit and a rotary unit. The stationary unit includes a stator, a base portion having at least one hole extending in the up-down direction, and a flexible wiring substrate. The flexible wiring substrate reaches a position higher than a lower surface of the base portion through at least one hole and is arranged to supply electric power to the stator. The flexible wiring substrate includes a connection portion arranged higher than the lower surface of the base portion and connected to the stator. The connection portion includes a solder portion arranged on a lower surface thereof to cover a portion of a lead wire extending from a coil of the stator. At least a portion of the solder portion is positioned within the hole.
Abstract translation: 电动机包括固定单元和旋转单元。 固定单元包括定子，具有沿上下方向延伸的至少一个孔的基部和柔性布线基板。 柔性布线基板通过至少一个孔到达比基部的下表面高的位置，并且被布置成向定子提供电力。 柔性布线基板包括布置成高于基部的下表面并连接到定子的连接部分。 连接部分包括布置在其下表面上的焊料部分以覆盖从定子的线圈延伸的引线的一部分。 焊料部分的至少一部分位于孔内。
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公开(公告)号：US20130300234A1
公开(公告)日：2013-11-14
申请号：US13946108
申请日：2013-07-19
Applicant: NIDEC CORPORATION
Inventor： Yoichi SEKII , Takehito TAMAOKA , Kazuhiro SATO , Kazuhiko FUKUSHIMA , Hiroyuki ABE
IPC: H02K5/00
CPC classification number: H02K5/22 , G11B25/043 , H02K1/146 , H02K3/44 , H02K3/522 , H02K5/00 , H02K5/225 , H02K2203/03 , H02K2213/03
Abstract: A motor includes a stationary unit and a rotary unit. The stationary unit includes a stator, a base portion having at least one hole, and a flexible wiring substrate. The flexible wiring substrate reaches a position higher than a lower surface of the base portion through at least one hole and is arranged to supply electric power to the stator. The flexible wiring substrate includes a connection portion arranged higher than the lower surface of the base portion and connected to the stator. The connection portion includes a solder portion arranged on a lower surface thereof to cover a portion of a lead wire extending from a coil of the stator. At least a portion of the solder portion is positioned within the hole.
Abstract translation: 电动机包括固定单元和旋转单元。 固定单元包括定子，具有至少一个孔的基部和柔性布线基板。 柔性布线基板通过至少一个孔到达比基部的下表面高的位置，并且被布置成向定子提供电力。 柔性布线基板包括布置成高于基部的下表面并连接到定子的连接部分。 连接部分包括布置在其下表面上的焊料部分以覆盖从定子的线圈延伸的引线的一部分。 焊料部分的至少一部分位于孔内。
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公开(公告)号：US20140139947A1
公开(公告)日：2014-05-22
申请号：US13804726
申请日：2013-03-14
Applicant: NIDEC CORPORATION
Inventor： Hiroyuki ABE
IPC: H02K1/14
CPC classification number: H02K1/14 , G11B19/2009 , H02K1/146 , H02K3/18 , H02K21/22 , H02K29/03 , H02K2201/03
Abstract: A spindle motor of a disk drive apparatus includes a base unit, a stator core, a covered cylindrical rotor hub, a rotor magnet, and a bearing mechanism. The height of the stator core in an axial direction is about 50% or more and about 70% or less of the height of the stator. A torque constant Kt of torque generated between a stator and a rotor magnet is about 4 mN·m/A or more and about 6 mN·m/A or less. A motor constant Km is about 2 mN·m/(A·√Ω) or more and about 4 mN·m/(A·√Ω) or less.
Abstract translation: 盘驱动装置的主轴电动机包括基座单元，定子铁心，有盖圆柱形转子轮毂，转子磁铁和轴承机构。 定子铁芯在轴向上的高度约为定子高度的50％以上且约70％以下。 在定子和转子磁体之间产生的扭矩的转矩常数Kt为约4mN·m / A以上且约6mN·m / A以下。 电动机常数Km约为2mN·m /（A·√＆OHgr）以上且约4mN·m /（A·√＆OHgr））以下。
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公开(公告)号：US20190036410A1
公开(公告)日：2019-01-31
申请号：US15752618
申请日：2016-09-21
Applicant: Nidec Corporation
Inventor： Hiroyuki ABE
IPC: H02K3/52 , H02K1/14 , H02K1/27 , H02K1/30 , H02K3/18 , H02K7/08 , H02K21/22 , H02K15/02 , H02K15/095 , H02K15/00 , G11B19/20
Abstract: In this stator, a passage line extending in a circumferential direction is disposed in a circumferential gap between two circumferentially adjacent ones of coils. A lead wire continuous with a conducting wire defining one of the coils includes a bend portion being bent in the gap with the passage line serving as a supporting point; a led-out portion arranged to extend from the coil to one side in an axial direction to the bend portion; and a connection portion arranged to extend from the bend portion to another side in the axial direction. At least a portion of a portion of the lead wire which overlaps with the passage line when viewed in a radial direction is arranged at a radial position between the passage line and a core back. Thus, the lead wire is bent with the passage line serving as the supporting point to reverse the direction in which the lead wire runs in the axial direction, and this contributes to preventing a slackening of the connection portion of the lead wire from causing the lead wire to be slackened to the one side in the axial direction. This in turn reduces the likelihood that the lead wire will be brought into contact with a member arranged on the one side of the stator in the axial direction.
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公开(公告)号：US20220393535A1
公开(公告)日：2022-12-08
申请号：US17751574
申请日：2022-05-23
Applicant: NIDEC CORPORATION
Inventor： Yuki ISHIKAWA , Hiroyuki ABE , Hironobu KUMAGAI
Abstract: In a motor, a stator includes: a stator core having slots arranged in a circumferential direction; and conductor connection bodies with conductors connected in series and inserted into the slots. A conductor connection body includes: a first portion wave-wound toward one side in the circumferential direction from a first end to a second end; a second portion wave-wound toward the one side in the circumferential direction from a third end to a fourth end; and a folded portion connecting the first and second portions. The first and third ends protrude in an axial direction from different slots in the circumferential direction, and the second and fourth ends protrude in the axial direction from different slots in the circumferential direction. The conductors include a folded conductor that forms a folded portion connecting the second end of the first portion and the fourth end of the second portion.
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