公开(公告)号：US20160293204A1

公开(公告)日：2016-10-06

申请号：US14963297

申请日：2015-12-09

Applicant: Nidec Corporation

Inventor： Seiji MARUOKA ,  Hironori ANDO ,  Yuki TAJIMA ,  Takahiro HISADA ,  Yoshitsugu SASAGURI

IPC: G11B19/20 ,  H02K5/16

CPC classification number: G11B19/2009 ,  F16C17/10 ,  F16C17/102 ,  F16C17/107 ,  F16C33/106 ,  F16C33/1065 ,  F16C33/107 ,  F16C35/10 ,  F16C35/12 ,  F16C2370/12 ,  H02K5/1677

Abstract: {circle around (1)} A spindle motor includes a fixing portion defined by a bearing portion, a holder portion, a gap between the bearing portion and the holder portion, and an adhesive arranged in the gap. {circle around (2)} The fixing portion includes first and second protruding surfaces arranged to protrude radially from a first and a second one, respectively, of an outside surface of the bearing portion and an inside surface of the holder portion; and first and second boundary surfaces arranged to join the first and second surfaces, respectively, to the first and second protruding surfaces, respectively. {circle around (3)} At least a portion of the first boundary surface is arranged above the second boundary surface. {circle around (4)} The first and second protruding surfaces are arranged radially opposite to the second and first surfaces, respectively, with a first and a second gap, respectively, intervening therebetween. {circle around (5)} The first boundary surface is arranged opposite to the second boundary surface with a third gap intervening therebetween. {circle around (6)} The adhesive is arranged to extend from the third gap to at least a portion of each of the first and second gaps.

Abstract translation: {圆周（1）}主轴电动机包括由轴承部分，保持器部分，轴承部分和保持器部分之间的间隙以及布置在间隙中的粘合剂限定的固定部分。 {圆周（2）}固定部分包括分别从轴承部分的外表面和保持器部分的内表面的第一和第二突出部径向突出的第一和第二突出表面; 以及分别将第一和第二表面分别连接到第一和第二突出表面的第一和第二边界面。 {圆周（3）}第一边界表面的至少一部分布置在第二边界表面上方。 {圆周（4）}第一和第二突出表面分别与第二和第一表面径向相对设置，分别具有介于其间的第一和第二间隙。 {圆周（5）}第一边界面与第二边界面相对布置，其间插入第三间隙。 {圆周围（6）}粘合剂布置成从第三间隙延伸到第一和第二间隙中的每一个的至少一部分。

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。