公开(公告)号：US09366263B2

公开(公告)日：2016-06-14

申请号：US13921637

申请日：2013-06-19

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima

IPC: F04D25/06 ,  H02K7/08 ,  F16C17/10 ,  F04D29/056 ,  F04D29/063 ,  F16C33/10 ,  F16C33/74 ,  H02K5/167 ,  F04D29/08

CPC classification number: F04D25/062 ,  F04D29/056 ,  F04D29/063 ,  F04D29/083 ,  F16C17/107 ,  F16C33/107 ,  F16C33/1075 ,  F16C33/745 ,  H02K5/1675

Abstract: A bearing apparatus according to a preferred embodiment of the present invention includes a bearing portion having a bottom and being substantially cylindrical; a shaft inserted in the bearing portion, and arranged to rotate about a central axis relative to the bearing portion; a bearing opposing portion defined in one piece, arranged above the bearing portion, and arranged to hold an upper end portion of the shaft while covering an outer circumferential surface upper portion and an upper end surface of the shaft; and a cylindrical seal portion arranged to extend downward from the bearing opposing portion. An inner circumferential surface of the cylindrical seal portion and an outer circumferential surface of the bearing portion are arranged to together define a seal gap therebetween, the seal gap including a seal portion having a surface of a lubricating oil defined therein.

Abstract translation: 根据本发明的优选实施例的轴承装置包括具有底部并且基本上圆柱形的轴承部分; 轴，其插入在所述轴承部分中并且布置成围绕中心轴线相对于所述轴承部分旋转; 轴承对置部分，其一体地限定在轴承部分的上方，并且被布置成在覆盖轴的外周面上部和上端面的同时保持轴的上端部; 以及设置成从所述支承相对部分向下延伸的圆柱形密封部分。 圆筒形密封部分的内圆周表面和轴承部分的外圆周表面布置成一起限定了它们之间的密封间隙，密封间隙包括具有限定在其中的润滑油表面的密封部分。

公开(公告)号：US20150382507A1

公开(公告)日：2015-12-31

申请号：US14630159

申请日：2015-02-24

Applicant: NIDEC CORPORATION

Inventor： Katsutoshi Kato ,  Takehito Tamaoka

IPC: H05K7/20

CPC classification number: H05K7/20272 ,  G06F1/203 ,  G06F2200/201 ,  H05K7/20254 ,  H05K7/20263

Abstract: A heat module includes a heat receiving portion, a fluid channel, a fan, a radiator including heat dissipating fins and a radiator tube fluid channel, and a pump. The pump includes a stationary portion and a rotating portion. The rotating portion includes a rotor holder and a pump impeller. The pump further includes a casing, a pump fluid channel, a pump inlet, and a pump outlet. At least a portion of the rotor holder and at least a portion of the pump impeller are arranged to radially overlap with each other. The fluid channel includes a tube fluid channel. The tube fluid channel includes a pump inlet-side tube fluid channel, a pump outlet-side tube fluid channel, and a heat receiving portion tube fluid channel. No heat receiving portion tube fluid channel is arranged in the pump inlet-side tube fluid channel.

Abstract translation: 热模块包括热接收部分，流体通道，风扇，包括散热翅片的散热器和散热器管流体通道，以及泵。 泵包括固定部分和旋转部分。 旋转部分包括转子保持器和泵叶轮。 泵还包括壳体，泵流体通道，泵入口和泵出口。 转子保持器的至少一部分和泵叶轮的至少一部分布置成彼此径向重叠。 流体通道包括管道流体通道。 管流体通道包括泵入口侧管流体通道，泵出口侧管流体通道和受热部管流体通道。 在泵入口侧管流体通道中没有设置受热部管流体通道。

公开(公告)号：US20150198176A1

公开(公告)日：2015-07-16

申请号：US14499680

申请日：2014-09-29

Applicant: Nidec Corporation

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima

IPC: F04D29/58 ,  G06F1/20 ,  F04D17/08 ,  F04D25/06 ,  F04D29/42

CPC classification number: F04D29/5853 ,  F04D17/16 ,  F04D25/0613 ,  F04D25/062 ,  F04D29/281 ,  F04D29/422 ,  F04D29/4226 ,  G06F1/203

Abstract: A blower fan includes a lower plate portion made of a material having a thermal conductivity of 1.0 W/(m·K) or more, and a side wall portion made of a material having a thermal conductivity of 1.0 W/(m·K) or more. An upper plate portion arranged to cover an upper side of the impeller includes an air inlet. The upper plate portion, the side wall portion, and the lower plate portion are arranged to together define an air outlet on the lateral side of the impeller. The blower fan further includes a heat source contact portion with which a heat source is to be in contact, the heat source contact portion being arranged in a surface of the blower fan which faces away from the impeller. The heat source contact portion and the side wall portion are arranged to at least partially overlap with each other in a plan view.

Abstract translation: 鼓风扇包括由热导率为1.0W /（m·K）以上的材料制成的下板部和由导热率为1.0W /（m·K）的材料制成的侧壁部， 或者更多。 布置成覆盖叶轮的上侧的上板部分包括空气入口。 上板部分，侧壁部分和下板部分布置成一起限定了在叶轮的侧面上的空气出口。 鼓风机还包括热源接触部分，热源接触部分，热源接触部分布置在鼓风机的远离叶轮的表面。 热源接触部分和侧壁部分在平面图中被布置成至少部分地彼此重叠。

公开(公告)号：US20150110649A1

公开(公告)日：2015-04-23

申请号：US14483843

申请日：2014-09-11

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima

IPC: F04D25/06 ,  F04D29/057 ,  F04D17/16

CPC classification number: F04D25/0613 ,  F04D17/16 ,  F04D25/062 ,  F04D25/0693 ,  F04D25/08 ,  F04D29/057

Abstract: A cooling apparatus includes an impeller, a motor, a base portion, and a motor circuit board. The impeller includes a plurality of blades and a blade support portion. Of the plurality of blades, at least one pair of circumferentially adjacent blades are arranged to have a channel defined therebetween, the channel extending from axially upper edges to axially lower edges of the blades, and being arranged to be open toward the upper surface of the base portion. The base portion includes a heat source contact portion with which a heat source is to be in contact. At least one of the blades includes a blade edge opposed portion having an axially lower edge arranged opposite to the upper surface of the base portion. An outermost edge portion of the motor circuit board is arranged radially inward of a radially inner end portion of the blade edge opposed portion.

Abstract translation: 冷却装置包括叶轮，马达，基座部和马达电路基板。 叶轮包括多个叶片和叶片支撑部分。 在多个叶片中，至少一对周向相邻的叶片被布置成具有限定在其间的通道，通道从叶片的轴向上边缘延伸到轴向下边缘，并且被布置成朝向叶片的上表面敞开 基部。 基部包括与热源接触的热源接触部。 叶片中的至少一个包括叶片边缘相对部分，其具有与基部的上表面相对布置的轴向下边缘。 电动机电路基板的最外边缘部分布置在叶片相对部分的径向内端部的径向内侧。

公开(公告)号：US20150030268A1

公开(公告)日：2015-01-29

申请号：US14264675

申请日：2014-04-29

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kiyoto Ida ,  Masashi Hirayama ,  Kazuhiko Fukushima

IPC: F16C33/10

CPC classification number: F16C33/104 ,  F16C17/045 ,  F16C17/107 ,  F16C33/1085 ,  F16C33/745 ,  F16C2240/30 ,  F16C2240/40 ,  F16C2370/12

Abstract: A porous oil-impregnated sleeve is used for a fluid dynamic pressure bearing. The sleeve includes an inner surface, a first axial end face, a first recessed portion, and a first dynamic pressure generating groove. The first recessed portion is positioned on the other side of a line segment, which connects one-side end portion of the inner surface with an inner end portion of the first axial end face, in a cross-section including the central axis. A bottom portion of the first recessed portion, which has the longest distance between itself and the line segment, is positioned closer to the other side than a bottom portion of the first dynamic pressure generating groove in the axial direction.

Abstract translation: 多孔油浸套筒用于流体动压轴承。 套筒包括内表面，第一轴向端面，第一凹部和第一动压产生凹槽。 所述第一凹部位于与包含所述中心轴的截面中的将所述内表面的一侧端部与所述第一轴向端面的内端部连接的线段的另一侧。 第一凹部的自身与线段之间的距离最长的底部比轴向的第一动压产生槽的底部更靠近另一侧。

公开(公告)号：US08922945B2

公开(公告)日：2014-12-30

申请号：US13767228

申请日：2013-02-14

Applicant: Nidec Corporation

Inventor： Shintaro Saeki ,  Atsushi Yawata ,  Yoichi Sekii ,  Takehito Tamaoka ,  Hiroyuki Abe

IPC: G11B19/20 ,  H02K5/22 ,  H02K3/52

CPC classification number: H02K5/225 ,  H02K3/522 ,  H02K2211/03

Abstract: A spindle motor includes a stationary unit, a rotary unit and a bearing mechanism. The stationary unit includes a base member, a stator including a plurality of coils and a wiring substrate electrically connected to the stator. The base member includes a tubular portion, a first accommodation portion, an opening portion, a plurality of coil accommodation portions, a second accommodation portion, and at least one through-hole. The wiring substrate includes an arc portion and an extension portion. A lead wire is led out from at least one of the coils and is connected to the arc portion by soldering within the through-hole.

Abstract translation: 主轴电机包括固定单元，旋转单元和轴承机构。 固定单元包括基座构件，包括多个线圈的定子和与定子电连接的布线基板。 基部构件包括管状部分，第一容纳部分，开口部分，多个线圈容纳部分，第二容纳部分和至少一个通孔。 布线基板包括弧形部分和延伸部分。 引线从至少一个线圈引出，并通过焊接在通孔内连接到弧形部分。

公开(公告)号：US08879204B2

公开(公告)日：2014-11-04

申请号：US13946108

申请日：2013-07-19

Applicant: Nidec Corporation

Inventor： Yoichi Sekii ,  Takehito Tamaoka ,  Kazuhiro Sato ,  Kazuhiko Fukushima ,  Hiroyuki Abe

IPC: G11B17/02 ,  H02K1/14 ,  H02K5/00 ,  G11B25/04 ,  H02K5/22 ,  H02K3/52

CPC classification number: H02K5/22 ,  G11B25/043 ,  H02K1/146 ,  H02K3/44 ,  H02K3/522 ,  H02K5/00 ,  H02K5/225 ,  H02K2203/03 ,  H02K2213/03

Abstract: A motor includes a stationary unit and a rotary unit. The stationary unit includes a stator, a base portion having at least one hole, and a flexible wiring substrate. The flexible wiring substrate reaches a position higher than a lower surface of the base portion through at least one hole and is arranged to supply electric power to the stator. The flexible wiring substrate includes a connection portion arranged higher than the lower surface of the base portion and connected to the stator. The connection portion includes a solder portion arranged on a lower surface thereof to cover a portion of a lead wire extending from a coil of the stator. At least a portion of the solder portion is positioned within the hole.

Abstract translation: 电动机包括固定单元和旋转单元。 固定单元包括定子，具有至少一个孔的基部和柔性布线基板。 柔性布线基板通过至少一个孔到达比基部的下表面高的位置，并且被布置成向定子提供电力。 柔性布线基板包括布置成高于基部的下表面并连接到定子的连接部分。 连接部分包括布置在其下表面上的焊料部分以覆盖从定子的线圈延伸的引线的一部分。 焊料部分的至少一部分位于孔内。

公开(公告)号：US20140219834A1

公开(公告)日：2014-08-07

申请号：US13942836

申请日：2013-07-16

Applicant: Nidec Corporation

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima ,  Kyoko Horise ,  Shinya Ishigami ,  Takahiro Nagai

IPC: F04D25/06 ,  F04D29/42 ,  F04D29/057

CPC classification number: F04D29/4226 ,  F04D17/16 ,  F04D25/0613 ,  F04D25/062 ,  F04D29/4213 ,  F04D29/422 ,  F04D29/424

Abstract: A lower plate includes a lower air inlet arranged radially outward of a bearing portion. In a plan view, a plane is divided into four regions by a first straight line which is parallel to an air outlet and crosses a central axis and a second straight line which is perpendicular to the air outlet and crosses the central axis, and one of the four regions in which a tongue portion is arranged is a first region, followed by a second region, a third region, and a fourth region in this order in a rotation direction of the blades. The air outlet is arranged to extend over both the first and fourth regions.

Abstract translation: 下板包括布置在轴承部分的径向外侧的下部空气入口。 在平面图中，平面被平行于空气出口的第一直线划分为四个区域，并且横过与空气出口垂直并穿过中心轴线的中心轴线和第二直线，并且 其中舌部布置的四个区域是第一区域，随后是沿着叶片的旋转方向的第二区域，第三区域和第四区域。 空气出口布置成在第一和第四区域上延伸。

公开(公告)号：US20140178194A1

公开(公告)日：2014-06-26

申请号：US14089192

申请日：2013-11-25

Applicant: Nidec Corporation

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima ,  Kyoko Horise ,  Shinya Ishigami ,  Takahiro Nagai

IPC: F04D1/00

CPC classification number: F04D29/422 ,  F04D17/16 ,  F04D25/0613 ,  F04D29/441

Abstract: In a blower fan according to a preferred embodiment of the present invention, a side wall portion includes a tongue portion arranged to project between an air outlet and an impeller. A side surface of the tongue portion includes a tongue portion tip arranged to touch a first imaginary plane including a central axis; a first tongue portion side surface arranged to extend from the tongue portion tip along an outer envelope of the impeller; and a second tongue portion side surface arranged to extend from the tongue portion tip toward a side edge, the side edge being a line of intersection of the air outlet and the side wall portion. The second tongue portion side surface is arranged to cross a second imaginary plane including the central axis and touching the side edge.

公开(公告)号：US08553355B2

公开(公告)日：2013-10-08

申请号：US13739402

申请日：2013-01-11

Applicant: Nidec Corporation

Inventor： Junya Mizukami ,  Takayuki Oe ,  Yoichi Sekii ,  Naoki Sabashi ,  Takehito Tamaoka ,  Takashi Yamamoto ,  Shigeki Horiki ,  Kazushi Miura ,  Mitsuhiro Takemoto ,  Kazuhiro Sato

IPC: G11B17/02 ,  F16C32/06 ,  H02K7/08

CPC classification number: H02K7/08 ,  F16C17/107 ,  F16C33/1065 ,  F16C33/107 ,  F16C33/745 ,  F16C2202/60 ,  F16C2370/12 ,  G11B19/00 ,  G11B19/2036 ,  G11B25/043 ,  H02K5/1675

Abstract: A motor includes a stationary portion and a rotating portion. The stationary portion includes a shaft portion and an upper thrust portion. The upper thrust portion includes a tubular first outer circumferential surface arranged radially outside the upper thrust portion, and a tubular second outer circumferential surface arranged above the first outer circumferential surface. The rotating portion includes a sleeve portion, a tubular portion, and an annular cover portion. The annular cover portion includes a plate portion and an inner annular projecting portion arranged to project upward or downward. An inner circumferential surface of the inner annular projecting portion is arranged above an inner circumferential surface of the tubular portion. An upper seal portion includes a surface of a lubricating oil located therein. The inner circumferential surface of the inner annular projecting portion and the second outer circumferential surface are arranged opposite to each other with an axially extending gap therebetween.

Abstract translation: 电动机包括固定部分和旋转部分。 固定部分包括轴部分和上推力部分。 上推力部包括设置在上推力部的径向外侧的管状的第一外周面和配置在第一外周面的上方的管状的第二外周面。 旋转部分包括套筒部分，管状部分和环形盖部分。 环形盖部分包括板部分和布置成向上或向下突出的内环形突出部分。 内环形突出部的内周面设置在管状部的内周面的上方。 上密封部分包括位于其中的润滑油的表面。 内环形突出部和第二外周面的内周面彼此相对设置，在其间具有轴向延伸的间隙。