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11. 发明申请

US20190013049A1 BASE UNIT AND DISK DRIVE APPARATUS 审中-公开
公开(公告)号：US20190013049A1
公开(公告)日：2019-01-10
申请号：US16104573
申请日：2018-08-17
申请人： Nidec Corporation
发明人： Masahiro AKAGI , Takeshi OHIRO , Tomohiro YONEDA , Akihiro YUDATE , Takayuki ISHINO , Sho NAKAMURA
IPC分类号： G11B33/14 , G11B25/04 , G11B33/02 , G11B33/12
CPC分类号： G11B33/1466 , G11B25/043 , G11B33/027 , G11B33/122
摘要： A base member includes a recessed portion extending in radial directions and recessed upward from a lower surface of the base member, and a hole extending through the recessed portion in the vertical direction. The recessed portion includes a recessed portion loop-shaped surface defining a loop-shaped surface in the radial direction. A connector is located on a lower side of the recessed portion to cover the hole portion. An adhesive is located between the connector and the recessed portion. A minimum value of a gap distance in the radial direction between an outer end of the connector and an inner end of the recessed portion in which the outer end of the connector and the inner end of the recessed portion are opposed to each other with the adhesive therebetween is greater than a minimum value of a gap in the vertical direction distance between an upper surface of the connector and the recessed portion loop-shaped surface, in which the upper surface of the connector and the recessed portion loop-shaped surface are opposed to each other with the adhesive therebetween. The adhesive includes a filler.

12. 发明申请

US20160254022A1 MOTOR AND DISK DRIVE APPARATUS 审中-公开
标题翻译：电机和磁盘驱动器
公开(公告)号：US20160254022A1
公开(公告)日：2016-09-01
申请号：US14934582
申请日：2015-11-06
申请人： Nidec Corporation
发明人： Masahiro AKAGI , Tomohiro YONEDA , Tadahiro KURAMOTO , Hiroshi KOBAYASHI , Masayuki MAEDA , Daisuke MORO
IPC分类号： G11B19/20
CPC分类号： G11B19/2009 , G11B19/2036 , G11B33/122 , G11B33/1446 , H02K3/28 , H02K3/521
摘要： A base portion of a motor includes an annular inner bottom plate portion, a recessed portion and groove portions recessed upward from a lower surface of the inner bottom plate portion, and at least one through hole passing through the inner bottom plate portion in an axial direction. The groove portions are arranged to extend from the recessed portion toward land portions of a circuit board arranged on a lower surface of the base portion. A draw-out surface of the recessed portion has a lower opening of each of the at least one through hole defined therein. A wall surface of the recessed portion includes communicating openings each of which is in communication with one end of a separate one of the groove portions. Conducting wires are drawn out from coils arranged above the base portion to the draw-out surface through the at least one through hole, and are passed through the communicating openings and the groove portions to be soldered to the land portions. The recessed portion has a sealant arranged therein. The lower opening of each of the at least one through hole is covered with the sealant. Drawing the conducting wires out of the recessed portion through the groove portions contributes to preventing the sealant arranged in the recessed portion from overflowing toward the land portions.
摘要翻译：电动机的基部包括环形内底板部分，凹部和从内底板部分的下表面向上凹陷的凹槽部分，以及至少一个贯穿内底板部分的轴向方向的通孔。凹槽部分被布置成从设置在基部的下表面上的电路板的凹部朝向陆部延伸。凹陷部分的拉出表面具有限定在其中的至少一个通孔中的每一个的下开口。凹部的壁面包括连通开口，每个连通孔与单独的一个槽部的一端连通。导线从通过至少一个通孔的基部上方的线圈被引出到拉出面，并且通过连通开口和沟槽部分被焊接到陆部。凹部具有布置在其中的密封剂。所述至少一个通孔中的每一个的下开口被所述密封剂覆盖。通过槽部将导线从凹部拉出，有助于防止配置在凹部中的密封剂朝着陆部溢出。

13. 发明申请

US20160164365A1 SPINDLE MOTOR AND DISK DRIVE APPARATUS 有权
标题翻译：主轴电机和磁盘驱动器
公开(公告)号：US20160164365A1
公开(公告)日：2016-06-09
申请号：US14718392
申请日：2015-05-21
申请人： Nidec Corporation
发明人： Tomohiro YONEDA , Hiroshi KOBAYASHI , Masanobu TAKI
IPC分类号： H02K3/38 , H02K5/02 , H02K3/30
CPC分类号： H02K5/10 , H02K5/22 , H02K11/33
摘要： A base portion made of a metal includes an upper surface, a lower surface, and a base portion through hole. An insulation sheet portion is located on the lower surface, and covers at least a portion of the base portion through hole. A lead wire is in contact with the insulation sheet portion. A spindle motor includes a first sealant located in the base portion through hole, and a second sealant which covers at least a portion of the base portion through hole. The first sealant has a coefficient of linear expansion greater than a coefficient of linear expansion of the base portion and smaller than a coefficient of linear expansion of the second sealant.
摘要翻译：由金属构成的基部包括上表面，下表面和基部通孔。绝缘片部分位于下表面上，并且覆盖基部通孔的至少一部分。引线与绝缘片部分接触。主轴电动机包括位于基部通孔中的第一密封剂和覆盖基部通孔的至少一部分的第二密封剂。第一密封剂的线膨胀系数大于基部的线性膨胀系数，并且小于第二密封剂的线性膨胀系数。

14. 发明申请

US20130308226A1 SPINDLE MOTOR, AND DISK DRIVE APPARATUS INCLUDING THE SPINDLE MOTOR 有权
公开(公告)号：US20130308226A1
公开(公告)日：2013-11-21
申请号：US13947139
申请日：2013-07-22
申请人： Nidec Corporation
发明人： Takatoki SUGI , Tomohiro YONEDA , Hiroshi KOBAYASHI
IPC分类号： G11B33/08 , H02K5/16
CPC分类号： G11B33/08 , F16C17/105 , F16C33/74 , F16C33/743 , F16C35/02 , F16C41/008 , F16C2226/12 , F16C2226/40 , F16C2370/12 , G11B19/2009 , H02K5/04 , H02K5/16 , H02K5/1677 , H02K15/14
摘要： A spindle motor includes a shaft arranged to extend in an axial direction, and a base portion arranged to define a portion of a housing, and including a through hole in which the shaft is inserted. A fixing region is defined between an inner circumferential portion of the base portion and a lower portion of the shaft. The fixing region includes a press-fitting region and an adhesion region defined on a lower side of the press-fitting region and in which a seal gap is defined between the inner circumferential portion of the base portion and the lower portion of the shaft. The seal gap is arranged to gradually decrease in radial width with increasing height. The seal gap is arranged to include an adhesive arranged therein over an entire circumference thereof.

15. 发明申请

US20190139579A1 BASE MEMBER, AND DISK DRIVE APPARATUS INCLUDING THE SAME 审中-公开
公开(公告)号：US20190139579A1
公开(公告)日：2019-05-09
申请号：US16147935
申请日：2018-10-01
申请人： Nidec Corporation
发明人： Tomohiro YONEDA , Takaharu FUNATSU , Akitsugu MIWA , Masakazu MATSUYAMA , Junzo FUJINAWA , Tadahiro KURAMOTO
IPC分类号： G11B33/02
CPC分类号： G11B33/022 , G11B23/0326 , G11B23/38 , G11B25/043
摘要： A base member is structured to define a portion of a casing in which a gas with a density lower than that of air is to be sealed and to support a motor to be housed in the casing. The base member includes a base body made of a cast material, an information mark, and an insulating coating layer. The information mark includes casting information and is located on a portion of a surface of the base body. The insulating coating layer is defined on the surface of the base body and covers the information mark.

16. 发明申请

US20170249968A1 SPINDLE MOTOR AND DISK DRIVE APPARATUS 有权
公开(公告)号：US20170249968A1
公开(公告)日：2017-08-31
申请号：US15438953
申请日：2017-02-22
申请人： Nidec Corporation
发明人： Tomohiro YONEDA , Takeshi OHIRO , Takayuki ISHINO
IPC分类号： G11B19/20 , G11B33/14 , G11B33/02 , H02K7/08
CPC分类号： G11B19/2036 , G11B33/027 , G11B33/1473 , H02K1/2786 , H02K5/163 , H02K7/08 , H02K7/085 , H02K15/03
摘要： A cup portion of a base member includes a cylindrical portion and a bottom plate portion. The cylindrical portion is arranged to be coaxial or substantially coaxial with a central axis extending in a vertical direction. The bottom plate portion is defined integrally with the cylindrical portion, and is arranged to close a lower portion of the cylindrical portion. A bearing mechanism is arranged inside of the cup portion. An outer circumferential surface of the bearing mechanism and an inner circumferential surface of the cylindrical portion have an adhesive layer arranged therebetween. In one preferred embodiment of the present invention, a communicating hole passing through the cylindrical portion in a direction that crosses an axial direction is defined in the vicinity of a junction of the cylindrical portion and the bottom plate portion. In another preferred embodiment of the present invention, the base member includes a communicating hole passing through the bottom plate portion in the axial direction.

17. 发明申请

US20170186467A1 BASE UNIT AND DISK DRIVE APPARATUS 有权
公开(公告)号：US20170186467A1
公开(公告)日：2017-06-29
申请号：US15376797
申请日：2016-12-13
申请人： Nidec Corporation
发明人： Masahiro AKAGI , Takeshi OHIRO , Tomohiro YONEDA , Akihiro YUDATE , Takayuki ISHINO , Sho NAKAMURA
IPC分类号： G11B33/14 , G11B33/12 , G11B33/02
CPC分类号： G11B33/1466 , G11B25/043 , G11B33/027 , G11B33/122
摘要： A base member includes a recessed portion arranged to extend in radial directions and recessed upward from a lower surface of the base member, the radial directions being directions perpendicular to a vertical direction or directions parallel to these directions; and a hole portion arranged to pass through the recessed portion in the vertical direction. The recessed portion includes a recessed portion loop-shaped surface being a loop-shaped surface perpendicular to the vertical direction. A connector is arranged on a lower side of the recessed portion to cover the hole portion. An adhesive is arranged between the connector and the recessed portion. A minimum value of a gap distance between an outer end of the connector and an inner end of the recessed portion in a radial direction in which the outer end of the connector and the inner end of the recessed portion are opposed to each other with the adhesive therebetween is greater than a minimum value of a gap distance between an upper surface of the connector and the recessed portion loop-shaped surface in the vertical direction, in which the upper surface of the connector and the recessed portion loop-shaped surface are opposed to each other with the adhesive therebetween.

18. 发明申请

US20160164364A1 SPINDLE MOTOR AND DISK DRIVE APPARATUS 有权
标题翻译：主轴电机和磁盘驱动器
公开(公告)号：US20160164364A1
公开(公告)日：2016-06-09
申请号：US14718387
申请日：2015-05-21
申请人： Nidec Corporation
发明人： Tomohiro YONEDA , Hiroshi KOBAYASHI , Masanobu TAKI
IPC分类号： H02K3/38 , H02K3/30
CPC分类号： H02K11/30 , F16C2370/12 , H02K5/12 , H02K5/225 , H02K2203/06 , H02K2211/03
摘要： A base portion of a spindle motor includes a base portion through hole passing therethrough from an upper surface to a lower surface thereof. Coils include a lead wire drawn out from above the upper surface downwardly from the lower surface through the base portion through hole. A circuit board includes a land portion to which the lead wire is connected. The spindle motor includes an insulation sheet portion configured to cover at least a portion of the base portion through hole and with which the lead wire is arranged to be in contact. A thickness of the insulation sheet portion is greater than a thickness of the land portion.
摘要翻译：主轴电动机的基部包括从上表面到下表面穿过的基部通孔。线圈包括从上表面的上方从下表面穿过基部通孔向外拉出的引线。电路板包括连接引线的接地部分。主轴电动机包括绝缘片部分，其构造成覆盖基部通孔的至少一部分，引线布置成与其接触。绝缘片部分的厚度大于焊盘部分的厚度。

19. 发明申请

US20130308224A1 SPINDLE MOTOR, AND DISK DRIVE APPARATUS INCLUDING THE SPINDLE MOTOR 有权
标题翻译：主轴电机和磁盘驱动装置，包括主轴电机
公开(公告)号：US20130308224A1
公开(公告)日：2013-11-21
申请号：US13947136
申请日：2013-07-22
申请人： Nidec Corporation
发明人： Takatoki SUGI , Tomohiro YONEDA , Hiroshi KOBAYASHI
IPC分类号： G11B33/08 , H02K5/04
CPC分类号： G11B33/08 , F16C17/105 , F16C33/74 , F16C33/743 , F16C35/02 , F16C41/008 , F16C2226/12 , F16C2226/40 , F16C2370/12 , G11B19/2009 , H02K5/04 , H02K5/16 , H02K5/1677 , H02K15/14
摘要： A spindle motor includes a shaft arranged to extend in an axial direction, and a base portion arranged to define a portion of a housing, and including a through hole in which the shaft is inserted. A fixing region is defined between an inner circumferential portion of the base portion and a lower portion of the shaft. The fixing region includes a press-fitting region and an adhesion region defined on a lower side of the press-fitting region and in which a seal gap is defined between the inner circumferential portion of the base portion and the lower portion of the shaft. The seal gap is arranged to gradually decrease in radial width with increasing height. The seal gap is arranged to include an adhesive arranged therein over an entire circumference thereof.
摘要翻译：主轴电动机包括沿轴向方向延伸的轴和布置成限定壳体的一部分的基部，并且包括其中插入轴的通孔。固定区域限定在基部的内周部分和轴的下部之间。固定区域包括压配区域和限定在压配合区域的下侧的粘合区域，并且在基部的内周部分和轴的下部之间限定有密封间隙。密封间隙布置成随着高度的增加而径向宽度逐渐减小。密封间隙布置成包括在其整个圆周上布置在其中的粘合剂。

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