公开(公告)号：US20140091679A1

公开(公告)日：2014-04-03

申请号：US13785194

申请日：2013-03-05

Applicant: NIDEC CORPORATION

Inventor： Takuro MATSUMOTO ,  Atsushi YAWATA

IPC: H02K5/16

CPC classification number: H02K5/16 ,  G11B19/2009 ,  H02K1/187 ,  H02K5/1675 ,  H02K2213/03

Abstract: A base unit includes a base member including a first through-hole, a peripheral edge portion, and a thin portion, and a bushing including a bearing holding portion and first and second protrusion portions. The first and second protrusion portions respectively extend radially outward from an upper end portion and a lower end of the bearing holding portion. The first through-hole axially extends through the base member. The first through-hole is defined by an inner surface of the base member radially opposed to the bearing holding portion. The peripheral edge portion extends radially outward from the first through-hole. The thin portion is arranged radially outward of the peripheral edge portion. The thin portion has an axial thickness smaller than that of the peripheral edge portion. The bushing is arranged within the first through-hole. The peripheral edge portion is arranged between the first protrusion portion and the second protrusion portion.

Abstract translation: 基座单元包括：基座构件，包括第一通孔，周缘部分和薄壁部分;以及衬套，其包括轴承保持部分和第一和第二突出部分。 第一突出部分和第二突出部分分别从轴承保持部分的上端部分和下端径向向外延伸。 第一通孔轴向延伸穿过基座构件。 第一通孔由与轴承保持部径向相对的基座的内表面限定。 周边部分从第一通孔径向向外延伸。 薄壁部分沿径向向外设置在周边部分的外侧。 该薄壁部的轴向厚度比周缘部的厚度小。 衬套布置在第一通孔内。 周边部分布置在第一突出部分和第二突出部分之间。

公开(公告)号：US20140203691A1

公开(公告)日：2014-07-24

申请号：US14220506

申请日：2014-03-20

Applicant: Nidec Corporation

Inventor： Takuro MATSUMOTO ,  Atsushi YAWATA

IPC: H02K5/16

CPC classification number: H02K5/16 ,  G11B19/2009 ,  H02K1/187 ,  H02K3/522

Abstract: A motor for use in a disk drive apparatus includes a bearing, a rotary unit, a stator, a thin flat base member, and a cylindrical holder extending in an axial direction. The base member includes a first through-hole, a peripheral edge portion, and a thin portion. The thin portion is located radially outward of the peripheral edge portion. The thin portion has an axial thickness smaller than an axial thickness of the peripheral edge portion. The holder includes a first protrusion portion and a second protrusion portion. The first protrusion portion extends radially outward and is located axially above the peripheral edge portion. The second protrusion portion extends radially outward and is located axially below the peripheral edge portion. The bearing is located inside the holder. A stator core is located radially outside the holder and axially above the thin portion.

Abstract translation: 用于盘驱动装置的电动机包括轴承，旋转单元，定子，薄平底座构件和沿轴向方向延伸的圆柱形保持架。 基部构件包括第一通孔，周缘部和薄部。 薄壁部分位于周边边缘部分的径向外侧。 薄壁部的轴向厚度比周缘部的轴向厚度小。 保持器包括第一突出部分和第二突出部分。 第一突出部分径向向外延伸并且位于周边边缘部分的轴向上方。 第二突出部分径向向外延伸并且位于周边边缘部分的轴向下方。 轴承位于支架内。 定子芯位于保持器的径向外侧并且在薄部分上方轴向地定位。

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

IPC: H02K5/22 ,  G11B19/20

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。

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

IPC: H02K3/38 ,  H02K3/28 ,  G11B19/20

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。

公开(公告)号：US20140009852A1

公开(公告)日：2014-01-09

申请号：US13770355

申请日：2013-02-19

Applicant: NIDEC CORPORATION

Inventor： Takuro MATSUMOTO ,  Toshihiro AKIYAMA ,  Atsushi YAWATA

IPC: G11B19/20 ,  H02K5/00

CPC classification number: G11B19/2009 ,  H02K1/187 ,  H02K3/522 ,  H02K5/00 ,  H02K5/225 ,  H02K2203/03

Abstract: A base unit includes a stator and a base member including a first recess portion, a second recess portion, and at least one through-hole. The first recess portion is arranged on an upper surface of the base member to surround the hole portion and depressed toward the lower surface thereof. The second recess portion is arranged radially outward of the first recess portion and depressed toward a lower surface thereof. The through-hole is arranged inside the first recess portion to extend through the base member. The second recess portion includes a protrusion portion and a third recess portion. The protrusion portion protrudes from the lower surface of the base member toward the upper surface of the base member. The third recess portion is depressed from the lower surface of the base member toward the upper surface of the base member and positioned at the opposite side from the protrusion portion.

Abstract translation: 基座单元包括定子和包括第一凹部，第二凹部和至少一个通孔的基部构件。 第一凹部被布置在基部构件的上表面上，以围绕孔部分并朝向其下表面压下。 第二凹部配置在第一凹部的径向外侧，朝向下表面凹陷。 通孔布置在第一凹部内，以延伸穿过基底构件。 第二凹部包括突出部和第三凹部。 突出部从基部构件的下表面向基部构件的上表面突出。 第三凹部从基部构件的下表面向基部构件的上表面压下并且位于与突出部相反的一侧。