公开(公告)号：US09599122B2

公开(公告)日：2017-03-21

申请号：US14030633

申请日：2013-09-18

Applicant: NIDEC CORPORATION

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

IPC: F04D29/42 ,  F04D17/16 ,  F04D25/06

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

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：US09429165B2

公开(公告)日：2016-08-30

申请号：US14209088

申请日：2014-03-13

Applicant: Nidec Corporation

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima

IPC: F16C17/10 ,  F04D29/057 ,  F16C33/74 ,  F04D19/00 ,  F04D25/06 ,  F04D29/063

CPC classification number: F04D29/057 ,  F04D19/002 ,  F04D25/062 ,  F04D29/063 ,  F16C17/107 ,  F16C33/745 ,  F16C2360/46

Abstract: In a bearing mechanism according to a preferred embodiment of the present invention, a seal portion in which a surface of a lubricating oil is located is defined in a seal gap defined between an outer circumferential surface of a first tubular portion and an inner circumferential surface of a second tubular portion. The first tubular portion includes, in an area where the outer circumferential surface of the first tubular portion is in contact with the lubricating oil, a maximum outside diameter portion at which the outside diameter of the first tubular portion is greatest, an annular shoulder portion including a surface facing toward the surface of the lubricating oil and at which the outside diameter is smaller than at the maximum outside diameter portion, and an inclined portion at which the outside diameter gradually decreases from the annular shoulder portion toward the surface of the lubricating oil.

Abstract translation: 在根据本发明的优选实施例的轴承机构中，在第一管状部分的外周表面和第一管状部分的内周表面之间限定的密封间隙中限定了其中位于润滑油表面的密封部分 第二管状部分。 所述第一管状部在所述第一管状部的外周面与所述润滑油接触的区域中，包括所述第一管状部的外径最大的最大外径部，包括 面向润滑油表面的表面，外径小于最大外径部分的表面，以及外径从环形肩部朝向润滑油表面逐渐减小的倾斜部分。

公开(公告)号：US09360019B2

公开(公告)日：2016-06-07

申请号：US14498551

申请日：2014-09-26

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima

IPC: G06F1/20 ,  H05K5/00 ,  H05K7/20 ,  F04D25/06 ,  F04D29/051 ,  F04D29/58 ,  F04D17/16 ,  F04D29/057

CPC classification number: F04D25/062 ,  F04D17/16 ,  F04D25/0626 ,  F04D29/0513 ,  F04D29/057 ,  F04D29/5853 ,  G06F1/203

Abstract: A blower fan includes a heat source contact portion. A side wall portion includes a tongue portion. In a plan view, The heat source contact portion is arranged to cover a portion of a region surrounded by a third imaginary straight line tangent to an outer circumferential surface of a blade support portion and extending in parallel with the second imaginary straight line toward the air outlet in the first region, a fourth imaginary straight line tangent to the outer circumferential surface of the blade support portion and extending in parallel with the first imaginary straight line in the third region, the outer circumferential surface of the blade support portion, and the air outlet.

Abstract translation: 鼓风机包括热源接触部。 侧壁部分包括舌部。 在平面图中，热源接触部分布置成覆盖由与叶片支撑部分的外周表面相切的第三假想直线包围的区域的一部分并且与第二假想直线平行延伸朝向空气 在第一区域的出口处，与刀片支撑部分的外周面相切的第四虚直线，并且与第三区域中的第一假想直线平行，刀片支撑部分的外周面和空气 出口。

公开(公告)号：US09341214B2

公开(公告)日：2016-05-17

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 ,  F16C32/06 ,  F16C33/74 ,  F16C17/04

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：US09316229B2

公开(公告)日：2016-04-19

申请号：US13785768

申请日：2013-03-05

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima ,  Hiroaki Hirano ,  Kouta Kabune

IPC: F04D25/06 ,  H02K11/00 ,  H02K3/52 ,  H02K5/22

CPC classification number: F04D25/0613 ,  F04D25/0633 ,  F04D25/0646 ,  H02K3/522 ,  H02K5/225 ,  H02K11/0094 ,  H02K2211/03

Abstract: A base plate of a motor includes an inner bottom plate portion and an elevated portion. A land portion is arranged on an upper surface of a portion of a circuit board which overlaps with the inner bottom plate portion in a plan view, or on a portion of the circuit board which overlaps with the elevated portion in the plan view. A conducting wire extending from a coil is electrically connected to the land portion. This structure enables the conducting wire to be connected to the land portion on the circuit board without the conducting wire being drawn outward beyond an outer circumferential end portion of the base plate. The axial position of the conducting wire connected to the land portion and the axial position of the base plate at least partially overlap with each other.

Abstract translation: 马达的基板包括内底板部分和升高部分。 在平面图中，或者在俯视图中与升高部重叠的电路板的一部分上，在电路板的与电池基板的一部分重叠的部分的上表面上设置接合部。 从线圈延伸的导线电连接到焊盘部分。 这种结构使得导线能够连接到电路板上的接地部分，而不会使导线向外拉出超过基板的外周端部。 连接到陆部的导线的轴向位置和基板的轴向位置至少部分地彼此重叠。

公开(公告)号：US20150362258A1

公开(公告)日：2015-12-17

申请号：US14617203

申请日：2015-02-09

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima ,  Koji Hatanaka

IPC: F28D15/02

CPC classification number: F28D15/0233 ,  F28D15/0275 ,  G06F1/203

Abstract: A heat module includes a fan and a heat pipe. A flat portion of the heat pipe includes a recessed portion being recessed toward a center of the heat pipe in a cross section. A heat receiving portion arranged between the heat source and the heat pipe includes a heat source contact portion arranged to be in thermal contact with the heat pipe. In at least a portion of the heat pipe which extends between a portion of the heat pipe which is in thermal contact with the fan contact portion and a portion of the heat pipe which is in thermal contact with the heat source contact portion, a difference between a maximum axial height of the heat pipe and a minimum axial height of a portion of the heat pipe where the recessed portion is defined is smaller than a wall thickness of the recessed portion.

Abstract translation: 热模块包括风扇和热管。 热管的平坦部分包括在横截面中朝向热管的中心凹陷的凹部。 布置在热源和热管之间的热接收部分包括布置成与热管热接触的热源接触部分。 在热管的与风扇接触部分热接触的部分和与热源接触部分热接触的热管的一部分之间延伸的至少一部分热管中， 热管的最大轴向高度和限定有凹部的热管的一部分的最小轴向高度小于凹部的壁厚。

公开(公告)号：US20150198166A1

公开(公告)日：2015-07-16

申请号：US14498551

申请日：2014-09-26

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima

IPC: F04D25/06 ,  G06F1/20 ,  F04D29/58 ,  F04D17/08 ,  F04D29/051

CPC classification number: F04D25/062 ,  F04D17/16 ,  F04D25/0626 ,  F04D29/0513 ,  F04D29/057 ,  F04D29/5853 ,  G06F1/203

Abstract: A blower fan includes a heat source contact portion. A side wall portion includes a tongue portion. In a plan view, The heat source contact portion is arranged to cover a portion of a region surrounded by a third imaginary straight line tangent to an outer circumferential surface of a blade support portion and extending in parallel with the second imaginary straight line toward the air outlet in the first region, a fourth imaginary straight line tangent to the outer circumferential surface of the blade support portion and extending in parallel with the first imaginary straight line in the third region, the outer circumferential surface of the blade support portion, and the air outlet.

Abstract translation: 鼓风机包括热源接触部。 侧壁部分包括舌部。 在平面图中，热源接触部分布置成覆盖由与叶片支撑部分的外周表面相切的第三假想直线包围的区域的一部分并且与第二假想直线平行延伸朝向空气 在第一区域的出口处，与刀片支撑部分的外周面相切的第四虚直线，并且与第三区域中的第一假想直线平行，刀片支撑部分的外周面和空气 出口。

公开(公告)号：US20150176587A1

公开(公告)日：2015-06-25

申请号：US14532183

申请日：2014-11-04

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima

IPC: F04D25/06 ,  F04D29/32 ,  F04D29/063 ,  F04D19/00

CPC classification number: F04D25/0613 ,  F04D29/282 ,  F04D29/329 ,  F04D29/626

Abstract: A fan includes a stationary portion; a bearing mechanism; and a rotating portion. The rotating portion includes an impeller including a plurality of blades and an annular impeller cup arranged to support the blades. The rotor portion includes a cover portion and a cylindrical portion. The impeller is fixed to an outer circumferential surface of the cylindrical portion of the rotor portion. The outer circumferential surface of the cylindrical portion and an inner circumferential surface of the impeller cup have a joining portion therebetween. At least one of the outer circumferential surface of the cylindrical portion and the inner circumferential surface of the impeller cup includes a groove portion recessed radially from the joining portion. The groove portion includes an upward facing surface. An adhesive is arranged in the groove portion. At least a portion of the adhesive is arranged above the upward facing surface of the groove portion.

Abstract translation: 风扇包括固定部分; 轴承机构; 和旋转部。 旋转部分包括包括多个叶片的叶轮和布置成支撑叶片的环形叶轮杯。 转子部分包括盖部分和圆柱形部分。 叶轮固定在转子部分的圆筒部的外周面上。 圆筒部的外周面和叶轮杯的内周面之间具有接合部。 圆筒部的外周面和叶轮杯的内周面中的至少一个包括从接合部径向凹入的槽部。 槽部包括向上的表面。 在凹槽部分中布置有粘合剂。 粘合剂的至少一部分布置在凹槽部分的面向上的表面上方。

公开(公告)号：US20140369839A1

公开(公告)日：2014-12-18

申请号：US14149052

申请日：2014-01-07

Applicant: NIDEC CORPORATION

Inventor： Takehito Tamaoka ,  Kazuhiko Fukushima

IPC: F04D29/057 ,  F16C32/06

CPC classification number: F04D29/057 ,  F04D25/062 ,  F04D29/0513 ,  F16C17/107 ,  F16C35/02 ,  F16C2370/12

Abstract: A sleeve housing of a bearing mechanism according to a preferred embodiment of the present invention includes a cylindrical portion arranged to cover outer circumferences of a sleeve and a plate portion, and a bottom portion arranged to close a lower portion of the cylindrical portion. The bottom portion includes a plurality of projecting portions arranged in a circumferential direction in an upper surface of the bottom portion. Each projecting portion is arranged to project upward to be in contact with a lower surface of the sleeve. Each of the projecting portions and the plate portion are arranged radially opposite each other. At least a portion of an adhesive is arranged to exist between an outer circumferential surface of the sleeve and an inner circumferential surface of the cylindrical portion.

Abstract translation: 根据本发明的优选实施例的轴承机构的套筒壳体包括布置成覆盖套筒和板部分的外圆周的圆柱形部分和布置成闭合圆柱形部分的下部的底部。 底部包括在底部的上表面中沿圆周方向布置的多个突出部分。 每个突出部分布置成向上突出以与套筒的下表面接触。 每个突出部分和板部分彼此径向相对布置。 粘合剂的至少一部分布置成存在于套筒的外圆周表面和圆柱形部分的内圆周表面之间。

公开(公告)号：US08873197B1

公开(公告)日：2014-10-28

申请号：US14444145

申请日：2014-07-28

Applicant: Nidec Corporation

Inventor： Shuji Iwasaki ,  Yoichi Sekii ,  Takehito Tamaoka ,  Hideki Nishimura ,  Kazuto Miyajima ,  Takuro Iguchi ,  Kazuhiro Sato ,  Takeyuki Shuto

IPC: G11B17/02

CPC classification number: H02K1/27 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  F16C33/745 ,  F16C2226/12 ,  F16C2226/40 ,  F16C2226/60 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1677 ,  H02K7/086 ,  H02K2201/03

Abstract: A motor includes a rotating portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion, an upper plate portion, and a lower plate portion. The upper plate portion is disposed in one side of the shaft component and extends radially outward from the one side of the shaft component. The lower plate portion is disposed on the other side of the shaft component and extends radially outward from the other side of the shaft component. The rotating portion includes a sleeve portion. The inner shaft portion and the outer shaft portion are fixed by an adhesive. An adhesive retaining portion is provided between an outer peripheral portion of the inner shaft portion and an inner peripheral portion of the outer shaft portion.

Abstract translation: 马达包括旋转部分和固定部分。 固定部包括轴部件，其包括内轴部分和外部轴部分，上部板部分和下部板部分。 上板部分设置在轴部件的一侧，并从轴部件的一侧径向向外延伸。 下板部分设置在轴部件的另一侧，并从轴部件的另一侧径向向外延伸。 旋转部分包括套筒部分。 内轴部和外轴部由粘合剂固定。 在内轴部的外周部和外轴部的内周部之间设置有粘接保持部。