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公开(公告)号：US20190013049A1
公开(公告)日：2019-01-10
申请号：US16104573
申请日：2018-08-17
Applicant: Nidec Corporation
Inventor： Masahiro AKAGI , Takeshi OHIRO , Tomohiro YONEDA , Akihiro YUDATE , Takayuki ISHINO , Sho NAKAMURA
CPC classification number: G11B33/1466 , G11B25/043 , G11B33/027 , G11B33/122
Abstract: 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.
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公开(公告)号：US20180053534A1
公开(公告)日：2018-02-22
申请号：US15783128
申请日：2017-10-13
Applicant: Nidec Corporation
Inventor： Masahiro AKAGI , Takeshi OHIRO , Tomohiro YONEDA , Akihiro YUDATE , Takayuki ISHINO , Sho NAKAMURA
CPC classification number: G11B33/1466 , G11B25/043 , G11B33/027 , G11B33/122
Abstract: 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; 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.
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公开(公告)号：US20170186467A1
公开(公告)日：2017-06-29
申请号：US15376797
申请日：2016-12-13
Applicant: Nidec Corporation
Inventor： Masahiro AKAGI , Takeshi OHIRO , Tomohiro YONEDA , Akihiro YUDATE , Takayuki ISHINO , Sho NAKAMURA
CPC classification number: G11B33/1466 , G11B25/043 , G11B33/027 , G11B33/122
Abstract: 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.
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公开(公告)号：US20140153132A1
公开(公告)日：2014-06-05
申请号：US14169511
申请日：2014-01-31
Applicant: Nidec Corporation
Inventor： Kazuhiro SATO , Masahiro SHIRAISHI , Takayuki ISHINO , Akihiro YUDATE , Takuro MATSUMOTO , Toshihiro AKIYAMA
CPC classification number: H02K5/225 , G11B19/2009 , H02K3/50 , H02K2203/06 , H02K2211/03
Abstract: A base member of a motor includes a base through-hole extending through a bottom portion thereof. Two or more lead wires extending from coils pass through the base through-hole. Thus, as compared with a case where the lead wires pass through different base through-holes respectively, it is possible to reduce the number of the base through-holes. Accordingly, it is possible to minimize or prevent a reduction in the rigidity of the base member. Insulating sheet portions are arranged on the lower and upper surfaces of the base member. Each insulating sheet portion includes an overhang portion which overlaps with the base through-hole when seen in a plan view. The lead wires extending from the coils are led out toward the lower surface of the base member through holes, cutouts, or slits defined in the overhang portion. This makes it possible to easily distinguish the led-out lead wires from each other.
Abstract translation: 马达的基座部件包括延伸穿过其底部的基底通孔。 从线圈延伸的两根或多根导线穿过基座通孔。 因此，与引线分别穿过不同的基底通孔的情况相比，可以减少基底通孔的数量。 因此，可以最小化或防止基体的刚性降低。 绝缘片部分布置在基底构件的下表面和上表面上。 每个绝缘片部分包括当在平面图中观察时与基部通孔重叠的突出部分。 从线圈延伸的引线通过限定在突出部分中的孔，切口或狭缝引导到基部构件的下表面。 这使得可以容易地将引出线彼此区分开。
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Patent Agency Ranking
公开(公告)号：US20180374514A1
公开(公告)日：2018-12-27
申请号：US16104585
申请日：2018-08-17
Applicant: Nidec Corporation
Inventor： Masahiro AKAGI , Takeshi OHIRO , Tomohiro YONEDA , Akihiro YUDATE , Takayuki ISHINO , Sho NAKAMURA
CPC classification number: G11B33/1466 , G11B25/043 , G11B33/027 , G11B33/12 , G11B33/122 , G11B33/1446 , G11B33/148 , G11B33/1486
Abstract: 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 an inorganic filler.
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公开(公告)号：US20140042844A1
公开(公告)日：2014-02-13
申请号：US13780447
申请日：2013-02-28
Applicant: NIDEC CORPORATION
Inventor： Kazuhiro SATO , Masahiro SHIRAISHI , Takayuki ISHINO , Akihiro YUDATE
IPC: H02K5/22
CPC classification number: H02K5/225 , G11B19/2009 , H02K3/50
Abstract: A base member of a spindle motor includes a base through-hole and a base groove portion. The base through-hole extends through a bottom portion of the base member. The base groove portion is arranged on a lower surface of the base member to extend radially outward from the lower end portion of the base through-hole. A first insulating sheet portion is fixed to a bottom surface of the base groove portion by an adhesive agent or sticky material. Lead wires extending from coils are led out into the base groove portion through the base through-hole. The lead wires extend outward along a lower surface of the first insulating sheet portion. The lead wires are soldered to land portions of a circuit substrate at an outer side of the bottom portion. A portion of the first insulating sheet portion overlaps with a lower opening of the base through-hole in plan view.
Abstract translation: 主轴电动机的基座部件具有底座贯通孔和基部槽部。 基底通孔延伸穿过底座部件的底部。 基部槽部配置在基体的下表面上，从基底通孔的下端部向径向外侧延伸。 第一绝缘片部分通过粘合剂或粘性材料固定在基底槽部分的底面上。 从线圈延伸的导线通过基底通孔引出到基部槽部。 引线沿着第一绝缘片部分的下表面向外延伸。 引线在底部的外侧被焊接到电路基板的接地部分。 第一绝缘片部分的一部分在平面图中与基底通孔的下开口重叠。
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公开(公告)号：US20130335859A1
公开(公告)日：2013-12-19
申请号：US13788140
申请日：2013-03-07
Applicant: NIDEC CORPORATION
Inventor： Akio TATSUMI , Takashi FUJIWARA , Takayuki ISHINO , Kiyofumi INOUE , Akihiro YUDATE
IPC: G11B33/02
CPC classification number: G11B33/02 , G11B19/2009
Abstract: A base plate of a disk drive apparatus includes a motor base disposed around a central axis and a base body portion extending radially outward of the motor base. The motor base is made of a metallic material of a first type. The base body portion is made of a metallic material of a second type. Thus, the axial thickness of a portion of the base plate close to the central axis can be significantly reduced and a reduction in the stiffness of the portion can be prevented. Further, the motor base includes a flange portion and a plastic deforming portion. The flange portion and the plastic deforming portion are respectively in contact with at least a portion of both axial end surfaces of an inner end portion of the base body portion. Thus, extraction of the motor base in the axial direction is prevented.
Abstract translation: 盘驱动装置的基板包括设置在中心轴周围的马达基座和沿电动机底座径向向外延伸的基体部分。 马达基座由第一类金属材料制成。 基体部分由第二类金属材料制成。 因此，基板的靠近中心轴线的一部分的轴向厚度可以显着地减小，并且可以防止该部分的刚度的降低。 此外，马达基座包括凸缘部分和塑性变形部分。 凸缘部分和塑性变形部分分别与基体部分的内端部分的两个轴向端面的至少一部分接触。 因此，防止电动机基座沿轴向的提取。
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公开(公告)号：US20190093705A1
公开(公告)日：2019-03-28
申请号：US16118435
申请日：2018-08-31
Applicant: NIDEC CORPORATION
Inventor： Kunio SAKURADA , Akinobu SUMIJI , Akihiro YUDATE , Sho NAKAMURA
CPC classification number: F16C32/0633 , F04D25/06 , F04D25/062 , F04D29/056 , F04D29/063 , F04D29/083 , F04D29/102 , F16C33/745 , F16C2360/46 , H02K5/163 , H02K5/1675 , H02K7/085 , H02K7/14 , H02K21/22
Abstract: A bearing apparatus includes a cylindrical sleeve, a shaft rotatably inserted in the sleeve, lubricating oil arranged in a gap defined between an inner circumferential surface of the sleeve and an outer circumferential surface of the shaft, a seal member arranged at an axially upper end portion of the sleeve projecting from the sleeve, and an annular member fixed to an outer circumferential surface of the axially upper end portion of the shaft to rotate together with the shaft. The annular member includes a projecting portion projecting axially downward. The seal member and an axially lower end portion of the projecting portion overlap each other when viewed in at least one of the axial direction or a radial direction.
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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
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。
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