公开(公告)号：US20150138670A1

公开(公告)日：2015-05-21

申请号：US14607375

申请日：2015-01-28

Applicant: Nidec Corporation

Inventor： Kazuhiro SATO ,  Masahiro SHIRAISHI ,  Takayuki ISHINO ,  Akihiro YUDATE ,  Takuro MATSUMOTO ,  Toshihiro AKIYAMA

IPC: H02K3/38 ,  H02K3/28 ,  G11B19/20

CPC classification number: G11B19/2009 ,  H02K3/50 ,  H02K5/225 ,  H02K2203/06 ,  H02K2211/03

Abstract: A base member includes a base through-hole which interconnects an upper opening and a lower opening. An insulating sheet portion is disposed at a lower surface side of the base member. The insulating sheet portion covers at least a portion of the lower opening. Lead wires extending from coils extend to the lower surface side of the base member through the base through-hole. The lead wires extend radially outward along a lower surface of the insulating sheet portion while making contact with the insulating sheet portion. The lead wires are soldered to land portions of a circuit substrate. The lower opening is covered with a sealing material. The circuit substrate includes a first region. The insulating sheet portion is defined by a smaller number of layers than the first region.

Abstract translation: 基部构件包括将上部开口和下部开口相互连接的基部通孔。 绝缘片部分设置在基底构件的下表面侧。 绝缘片部分覆盖下开口的至少一部分。 从线圈延伸的引线通过基底通孔延伸到基底构件的下表面侧。 引线沿着绝缘片部分的下表面径向向外延伸，同时与绝缘片部分接触。 引线被焊接到电路基板的接地部分。 下部开口用密封材料覆盖。 电路基板包括第一区域。 绝缘片部分由比第一区域更少的层数限定。

公开(公告)号：US20140192439A1

公开(公告)日：2014-07-10

申请号：US14208003

申请日：2014-03-13

Applicant: Nidec Corporation

Inventor： Shuji IWASAKI ,  Yoichi SEKII ,  Takehito TAMAOKA ,  Hideki NISHIMURA ,  Kazuto MIYAJIMA ,  Takuro IGUCHI ,  Kazuhiro SATO ,  Takeyuki SHUTO

IPC: H02K7/08 ,  G11B19/20

CPC classification number: H02K1/27 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  F16C33/745 ,  F16C2226/12 ,  F16C2226/40 ,  F16C2226/60 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1677 ,  H02K7/086 ,  H02K2201/03

Abstract: A motor includes a shaft component, an upper plate portion, a lower plate portion, and a sleeve portion. The shaft component includes an inner shaft portion and an outer shaft portion. The sleeve portion is disposed between the upper plate portion and the lower plate portion. A radial gap is defined between the sleeve portion and the outer shaft portion. A fixing range in which the outer shaft portion and the inner shaft portion radially overlap is provided. At least a portion in an axial direction of the fixing range radially overlaps with an existing range in the axial direction of the radial gap.

Abstract translation: 电动机包括轴部件，上板部分，下板部分和套筒部分。 轴部件包括内轴部分和外轴部分。 套筒部分设置在上板部分和下板部分之间。 径向间隙限定在套筒部分和外轴部分之间。 提供外轴部和内轴部径向重叠的固定范围。 固定范围的轴向的至少一部分与径向间隙的轴向的现有范围径向重叠。

公开(公告)号：US20140086036A1

公开(公告)日：2014-03-27

申请号：US13804855

申请日：2013-03-14

Applicant: NIDEC CORPORATION

Inventor： Masahiro SHIRAISHI ,  Kazuhiro SATO

IPC: G11B19/20

CPC classification number: G11B19/2045

Abstract: A spindle motor includes a stationary portion and a rotating portion including a rotor hub, and includes a recording disk and a clamper mounted thereon. The rotor hub includes a hub circular plate portion whose outer circumferential portion includes a hub slanting surface, and a hub cylindrical portion whose outer circumferential portion includes a hub screw portion. The hub screw portion, to which the clamper is screwed, includes at least a first hub screw groove, a first hub screw thread arranged to be adjacent to the first hub screw groove, and upper and lower flanks arranged to together define the first hub screw thread. The hub slanting surface connects with the first hub screw groove. The length of the hub slanting surface is longer than the length of the upper flank.

Abstract translation: 主轴电动机包括固定部分和包括转子毂的旋转部分，并且包括记录盘和安装在其上的夹持器。 转子毂包括：外圆周部分包括轮毂倾斜表面的轮毂圆板部分和外圆周部分包括毂螺旋部分的轮毂圆柱部分。 夹紧器被拧入的毂螺纹部分至少包括第一轮毂螺纹槽，布置成与第一轮毂螺纹槽相邻的第一轮毂螺纹螺纹，以及设置成一起限定第一轮毂螺钉的上下侧面 线。 轮毂倾斜表面与第一轮毂螺纹槽连接。 轮毂倾斜表面的长度大于上侧面的长度。

公开(公告)号：US20140082927A1

公开(公告)日：2014-03-27

申请号：US13804792

申请日：2013-03-14

Applicant: NIDEC CORPORATION

Inventor： Masahiro SHIRAISHI ,  Kazuhiro SATO ,  Tsuyoshi MORITA

IPC: H02K15/02 ,  G11B19/20

CPC classification number: H02K15/02 ,  G11B19/2009 ,  Y10T29/49012

Abstract: A disk drive apparatus includes a rotor hub including an outer surface with a hub screw groove and a hub information mark indicative of a start position of the hub screw groove. A method of manufacturing the disk drive apparatus includes the steps of preparing a spindle motor including the rotor hub, preparing a clamper including a clamper screw groove, and fitting a recording disk to the spindle motor. The method further includes the steps of detecting a position of the hub information mark and, based on the detected position of the hub information mark, positioning each of the clamper and the spindle motor in a circumferential direction, and screwing the clamper to the spindle motor.

Abstract translation: 磁盘驱动装置包括转子毂，该转子毂包括具有轮毂螺纹槽的外表面和表示轮毂螺纹槽的起始位置的轮毂信息标记。 一种制造磁盘驱动装置的方法包括以下步骤：制备包括转子毂的主轴电动机，制备包括夹持器螺纹槽的夹持器，以及将记录盘装配到主轴电动机。 该方法还包括以下步骤：检测集线器信息标记的位置，并且根据检测到的集线器信息标记的位置，沿周向对夹持器和主轴电动机进行定位，并将夹持器旋转到主轴电动机 。