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公开(公告)号：US20220319547A1
公开(公告)日：2022-10-06
申请号：US17711039
申请日：2022-04-01
申请人： NIDEC CORPORATION
摘要： A spindle motor includes a base, a shaft arranged on the base and extending in a vertical direction, a stator having a coil defined by a wound conductive wire and arranged on an upper surface of the base, and a rotor rotatably supported around the shaft. The base has a through hole that penetrates the base from the upper surface to a lower surface. The conductive wire is drawn out to the lower surface side through the inside of the through hole. The through hole is sealed by a sealing material. The through hole includes a columnar lower column body and a columnar upper column body. The lower column body is arranged on the lower surface side of the base. A cross-sectional area of the upper column body orthogonal to an axial direction is smaller than a cross-sectional area of the lower column body orthogonal to the axial direction.
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公开(公告)号：US20200003254A1
公开(公告)日：2020-01-02
申请号：US16402464
申请日：2019-05-03
申请人： Nidec Corporation
发明人： Kazuhiro SATO , Katsuya TAKAHASHI
摘要： A fluid dynamic bearing device includes a shaft disposed along a center axis, a sleeve cylindrically extending around the shaft, a thruster that closes a lower end of the sleeve, dynamic pressure grooves in the shaft or the sleeve, and a lubricating oil present therebetween. The shaft includes a shaft main body and a shaft flange extending radially outward from a lower end of the shaft main body. An inner peripheral surface of the sleeve includes a first inner peripheral surface that faces an outer peripheral surface of the shaft main body in the radial direction and a second inner peripheral surface that faces an outer peripheral surface of the shaft flange in the radial direction. The sleeve includes a sleeve inner lower surface and a circulation hole.
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公开(公告)号：US20190214868A1
公开(公告)日：2019-07-11
申请号：US16192073
申请日：2018-11-15
申请人： Nidec Corporation
发明人： Takuo MIYAKE , Kazuhiro SATO , Katsuya TAKAHASHI
摘要： A protrusion includes a leading end to which a yoke is fixed and a connector that connects an axially lower end of a flange and the leading end. A minimum width of the connector in a direction intersecting a direction in which the protrusion protrudes is smaller than a maximum width of the leading end in a radial direction. A radial position at a radially inner end of the leading end is located radially outward with respect to a side surface in a radially inward direction of a magnet.
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公开(公告)号：US20150055248A1
公开(公告)日：2015-02-26
申请号：US14458465
申请日：2014-08-13
申请人： Nidec Corporation
发明人： Katsuya TAKAHASHI , Yuki TAJIMA , Kazuhiro SATO , Yuya SAITO , Hironori ANDO , Masahiro SHIRAISHI
CPC分类号： G11B19/2009 , G11B17/0284 , G11B17/0287 , G11B17/038
摘要： A spindle motor includes a recording disk and a clamper. A cylindrical portion includes a first screw portion positioned in an outer circumferential portion of the cylindrical portion. The clamper includes an annular raised portion configured to be fitted in a through hole of the recording disk. An inner circumferential portion of the clamper includes a second screw portion configured to be screwed to the first screw portion. At least a portion of the second screw portion is positioned in an inner circumferential portion of the annular raised portion. Each of the first screw portion and the second screw portion includes at least one of a screw groove and a screw thread. An axial position of at least a portion of the second screw portion overlaps with an axial position of the recording disk.
摘要翻译： 主轴电机包括记录盘和夹持器。 圆筒部包括位于圆筒部的外周部的第一螺纹部。 夹持器包括构造成装配在记录盘的通孔中的环形凸起部分。 夹持器的内圆周部分包括构造成螺纹连接到第一螺纹部分的第二螺纹部分。 所述第二螺纹部的至少一部分位于所述环状隆起部的内周部。 第一螺纹部分和第二螺纹部分中的每一个包括螺纹槽和螺纹中的至少一个。 第二螺纹部分的至少一部分的轴向位置与记录盘的轴向位置重叠。
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公开(公告)号：US20140042844A1
公开(公告)日：2014-02-13
申请号：US13780447
申请日：2013-02-28
申请人： NIDEC CORPORATION
IPC分类号： H02K5/22
CPC分类号： H02K5/225 , G11B19/2009 , H02K3/50
摘要： A base member of a spindle motor includes a base through-hole and a base groove portion. The base through-hole extends through a bottom portion of the base member. The base groove portion is arranged on a lower surface of the base member to extend radially outward from the lower end portion of the base through-hole. A first insulating sheet portion is fixed to a bottom surface of the base groove portion by an adhesive agent or sticky material. Lead wires extending from coils are led out into the base groove portion through the base through-hole. The lead wires extend outward along a lower surface of the first insulating sheet portion. The lead wires are soldered to land portions of a circuit substrate at an outer side of the bottom portion. A portion of the first insulating sheet portion overlaps with a lower opening of the base through-hole in plan view.
摘要翻译： 主轴电动机的基座部件具有底座贯通孔和基部槽部。 基底通孔延伸穿过底座部件的底部。 基部槽部配置在基体的下表面上，从基底通孔的下端部向径向外侧延伸。 第一绝缘片部分通过粘合剂或粘性材料固定在基底槽部分的底面上。 从线圈延伸的导线通过基底通孔引出到基部槽部。 引线沿着第一绝缘片部分的下表面向外延伸。 引线在底部的外侧被焊接到电路基板的接地部分。 第一绝缘片部分的一部分在平面图中与基底通孔的下开口重叠。
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公开(公告)号：US20220416603A1
公开(公告)日：2022-12-29
申请号：US17844789
申请日：2022-06-21
申请人： Nidec Corporation
发明人： Ryo MIYOSHI , Kazuhiro SATO , Toshihiro AKIYAMA
摘要： A rotor includes a rotor hub including a through-hole to which the shaft is fixed. An upper end and a lower end of an opposing region where an outer peripheral surface of the shaft and an inner peripheral surface of the through-hole oppose each other in a radial direction are respectively provided with an upper gap portion and a lower gap portion opposing each other through a space in the radial direction. The upper gap portion and the lower gap portion each include a bottom portion extending in a direction intersecting the center axis and a peripheral wall portion connected to a radial outer edge of the bottom portion and extending along the center axis.
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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
申请人： NIDEC CORPORATION
发明人： Hiroyuki ABE , Takehito TAMAOKA , Kazuhiro SATO
CPC分类号： G11B19/2009 , H02K1/146 , H02K1/187 , H02K3/522 , H02K5/225 , H02K2213/03
摘要： 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.
摘要翻译： 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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公开(公告)号：US20150108861A1
公开(公告)日：2015-04-23
申请号：US14587099
申请日：2014-12-31
申请人： NIDEC CORPORATION
CPC分类号： H02K5/22 , G11B25/043 , H02K1/146 , H02K3/44 , H02K3/522 , H02K5/00 , H02K5/225 , H02K2203/03 , H02K2213/03
摘要： 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.
摘要翻译： 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：US20140334035A1
公开(公告)日：2014-11-13
申请号：US14444146
申请日：2014-07-28
申请人： Nidec Corporation
发明人： Shuji IWASAKI , Yoichi SEKII , Takehito TAMAOKA , Hideki NISHIMURA , Kazuto MIYAJIMA , Takuro IGUCHI , Kazuhiro SATO , Takeyuki SHUTO
CPC分类号： H02K5/165 , F16C17/107 , F16C33/103 , F16C33/107 , F16C33/745 , F16C2226/12 , F16C2226/40 , F16C2226/60 , F16C2370/12 , G11B19/2036 , H02K5/1677 , H02K7/086
摘要： A motor includes a rotating portion including a sleeve portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion. A radial dynamic pressure generating groove array is provided on at least one surface of an inner circumferential surface of the sleeve portion and an outer circumferential surface of the outer shaft portion, which define the radial gap. The radial dynamic pressure generating groove array includes an upper radial dynamic pressure generating groove array and a lower radial dynamic pressure generating groove array. A range of a fixing region in an axial direction between the inner shaft portion and the outer shaft portion in an interference fit state is included in a range between the upper radial dynamic pressure generating groove array and the lower radial dynamic pressure generating groove array.
摘要翻译： 马达包括具有套筒部和固定部的旋转部。 固定部包括轴部，该轴部包括内轴部和外轴部。 径向动压产生槽阵列设置在套筒部分的内圆周表面的至少一个表面和限定径向间隙的外轴部分的外圆周表面上。 径向动压产生槽阵列包括上径向动压产生凹槽阵列和下径向动压产生凹槽阵列。 在上部径向动态压力产生槽阵列和下部径向动态压力产生槽阵列之间的范围内包括在干涉配合状态下在内轴部和外轴部之间沿轴向方向的固定区域的范围。
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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
申请人： NIDEC CORPORATION
IPC分类号： H02K5/00
CPC分类号： H02K5/22 , G11B25/043 , H02K1/146 , H02K3/44 , H02K3/522 , H02K5/00 , H02K5/225 , H02K2203/03 , H02K2213/03
摘要： 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.
摘要翻译： 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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