公开(公告)号：US20160267937A1

公开(公告)日：2016-09-15

申请号：US15046760

申请日：2016-02-18

Applicant: Nidec Corporation

Inventor： Katsuya TAKAHASHI ,  Masahiro SHIRAISHI

IPC: G11B19/20 ,  H02K5/10 ,  H02K5/16

CPC classification number: G11B19/2009 ,  F16C17/107 ,  F16C33/1005 ,  F16C33/723 ,  F16C33/74 ,  F16C2370/12 ,  H02K5/10 ,  H02K5/15 ,  H02K5/1677

Abstract: A motor includes a rotating portion including a rotor magnet, and arranged to rotate about a central axis extending in a vertical direction; a bearing mechanism arranged to support the rotating portion such that the rotating portion is rotatable about the central axis; a stator portion arranged opposite to the rotor magnet; a housing arranged to accommodate the rotating portion, the bearing mechanism, and the stator portion therein; and a sealing member. The housing includes a base portion substantially in a shape of a plate and arranged to extend radially below the rotating portion. The base portion includes a first lower surface arranged to face downward, and a through hole arranged to pass through the base portion in the vertical direction and arranged to have a portion of the bearing mechanism arranged therein. The sealing member is arranged to cover a lower side of the through hole, and includes at least a metal layer.

Abstract translation: 马达包括：旋转部分，其包括转子磁体，并且布置成绕垂直方向延伸的中心轴旋转; 轴承机构，其布置成支撑所述旋转部分，使得所述旋转部分可围绕所述中心轴线旋转; 与转子磁体相对配置的定子部; 壳体，其布置成容纳旋转部分，轴承机构和定子部分; 和密封构件。 壳体包括基本上为板状的基部，并且设置成径向地在旋转部分下方延伸。 基部包括面向下的第一下表面和布置成在垂直方向上穿过基部的通孔，并且布置成具有布置在其中的轴承机构的一部分。 密封构件被布置成覆盖通孔的下侧，并且至少包括金属层。

公开(公告)号：US20150055248A1

公开(公告)日：2015-02-26

申请号：US14458465

申请日：2014-08-13

Applicant: Nidec Corporation

Inventor： Katsuya TAKAHASHI ,  Yuki TAJIMA ,  Kazuhiro SATO ,  Yuya SAITO ,  Hironori ANDO ,  Masahiro SHIRAISHI

IPC: G11B19/20 ,  H02K7/00

CPC classification number: G11B19/2009 ,  G11B17/0284 ,  G11B17/0287 ,  G11B17/038

Abstract: 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.

Abstract translation: 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。