公开(公告)号：US11469633B2

公开(公告)日：2022-10-11

申请号：US16934051

申请日：2020-07-21

Applicant: Nidec Corporation

Inventor： Mitsuhiro Takemoto ,  Sho Fukuhara ,  Shinji Takemoto

IPC: H02K1/30 ,  H02K7/14 ,  H02K1/276

Abstract: A motor includes a rotor with one or more magnets, a rotor core holding the one or more magnets, a spacer that contacts the one or more magnets, and a rotor holder. The rotor holder includes a holder lid portion and a holder tubular portion in a tubular shape extending to one side in the axial direction from a radially outer edge of the holder lid portion. The holder lid portion includes a holder first surface that extends radially inward from an inner surface of the holder tubular portion, a holder second surface that extends radially and is radially inward of the holder first surface and on the other side in the axial direction, and a connecting surface connecting the holder first surface and the holder second surface.

公开(公告)号：US11381141B2

公开(公告)日：2022-07-05

申请号：US16934050

申请日：2020-07-21

Applicant: Nidec Corporation

Inventor： Mitsuhiro Takemoto ,  Sho Fukuhara ,  Shinji Takemoto

IPC: H02K11/00 ,  H02K1/16 ,  H02K11/30 ,  H02K11/21 ,  H02K1/28 ,  H02K1/276

Abstract: A motor includes a rotor rotatable about a center axis extending vertically, a stator radially opposing the rotor, a bracket holding the stator, a circuit board including an upper surface with a first wiring pattern and a lower surface with a second wiring pattern, and a first fixing portion having conductivity and fixing the circuit board to the stator. The stator includes a stator core having conductivity. The first fixing portion includes a board holding portion holding the circuit board, and a stator fixed portion fixed to a portion of the stator core. The board holding portion is in contact with the first wiring pattern and the second wiring pattern.

公开(公告)号：US08687316B2

公开(公告)日：2014-04-01

申请号：US13775480

申请日：2013-02-25

Applicant: Nidec Corporation

Inventor： Tsuchitsugu Watanabe ,  Tomohiro Yokosawa ,  Hirofumi Takayama ,  Takashi Shimizu ,  Sho Fukuhara

IPC: G11B19/20

CPC classification number: H02K5/167 ,  G11B19/2009 ,  H02K5/1675

Abstract: In a spindle motor, a cup portion of a base member includes a cylindrical portion and a bottom plate portion. The cylindrical portion is concentric or substantially concentric with a central axis extending in a vertical direction. The bottom plate portion closes a bottom portion of the cylindrical portion. The bearing mechanism is accommodated in the cup portion. An adhesive is arranged between an outer circumferential surface of the bearing mechanism and an inner circumferential surface of the cylindrical portion. At least one of the outer circumferential surface of the bearing mechanism and the inner circumferential surface of the cylindrical portion includes an axially extending vertical groove. A communicating hole which is not filled with the adhesive is arranged in at least a portion of an inside of the vertical groove. The communicating hole extends continuously from an upper to a lower end portion of the vertical groove.

Abstract translation: 在主轴电动机中，基部构件的杯部包括圆筒部和底板部。 圆柱形部分与沿垂直方向延伸的中心轴同心或基本同心。 底板部封闭圆筒部的底部。 轴承机构容纳在杯部中。 在轴承机构的外周面与圆筒部的内周面之间配置有粘合剂。 轴承机构的外周面和圆筒部的内周面中的至少一个包括轴向延伸的垂直槽。 没有填充有粘合剂的连通孔设置在垂直槽的内部的至少一部分中。 连通孔从垂直槽的上端向下端部连续延伸。

公开(公告)号：US08675305B2

公开(公告)日：2014-03-18

申请号：US13775493

申请日：2013-02-25

Applicant: Nidec Corporation

Inventor： Tsuchitsugu Watanabe ,  Tomohiro Yokosawa ,  Hirofumi Takayama ,  Takashi Shimizu ,  Sho Fukuhara

IPC: G11B19/20

CPC classification number: G06F1/16 ,  G11B25/043 ,  G11B33/122 ,  H02K5/12 ,  H02K5/225

Abstract: A base unit includes a base member and a connector. The base member includes a bottom plate portion, a window portion, and a first groove. The first groove is defined in an upper surface of the bottom plate portion around the window portion. The connector includes a board portion and an electrode terminal. The board portion is arranged on the upper surface of the bottom plate portion to cover the window portion and the first groove. The electrode terminal is arranged to overlap with the window portion in the axial direction. An adhesive is arranged between the upper surface of the bottom plate portion and the lower surface of the board portion. The adhesive is arranged to extend continuously in an annular or substantially annular shape around the window portion while being arranged in at least a portion of the first groove.

Abstract translation: 基座单元包括基座构件和连接器。 基部构件包括底板部分，窗口部分和第一凹槽。 第一凹槽限定在围绕窗部的底板部分的上表面中。 连接器包括板部分和电极端子。 板部分布置在底板部分的上表面上以覆盖窗口部分和第一凹槽。 电极端子被布置为在轴向方向上与窗口部分重叠。 在底板部分的上表面和基板部分的下表面之间布置有粘合剂。 粘合剂布置成围绕窗口部分以环形或基本环形的形状连续延伸，同时布置在第一凹槽的至少一部分中。