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公开(公告)号：US20150023814A1
公开(公告)日：2015-01-22
申请号：US14208999
申请日：2014-03-13
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Hiroaki Hirano
IPC: F04D25/06
CPC classification number: F04D25/0613 , F04D19/002 , F04D25/06 , F04D25/062 , F04D25/08 , F04D25/082 , F04D29/057 , F04D29/063
Abstract: A stationary portion of a blower fan according to a preferred embodiment of the present invention includes a stator and a stator holding portion to which the stator is fixed. A rotating portion of the blower fan includes an annular rotor hub portion arranged around a central axis; a rotor magnet arranged along a circumferential surface of the rotor hub portion, and arranged radially inside a stator; and an impeller including a plurality of blades arranged along a circumferential direction of the rotor hub portion. An upper end of the stator is arranged at a level lower than that of an upper end of the rotor magnet. The impeller is arranged axially above the rotor magnet and is arranged to extend radially outward. The blades are arranged axially above the stator.
Abstract translation: 根据本发明的优选实施例的鼓风机的固定部分包括固定有定子和定子保持部分的定子。 鼓风扇的旋转部分包括围绕中心轴布置的环形转子轮毂部分; 转子磁体，其沿着转子毂部的圆周面配置，并配置在定子的径向内侧; 以及包括沿着转子毂部的圆周方向布置的多个叶片的叶轮。 定子的上端布置在比转子磁体的上端低的位置。 叶轮轴向地布置在转子磁体上方并且被布置成径向向外延伸。 叶片轴向地布置在定子上方。
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公开(公告)号：US08873198B1
公开(公告)日：2014-10-28
申请号：US14444146
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: H02K5/165 , F16C17/107 , F16C33/103 , F16C33/107 , F16C33/745 , F16C2226/12 , F16C2226/40 , F16C2226/60 , F16C2370/12 , G11B19/2036 , H02K5/1677 , H02K7/086
Abstract: A motor includes a rotating portion including a sleeve portion and a stationary portion. The stationary portion includes a shaft component which includes an inner shaft portion and an outer shaft portion. A radial dynamic pressure generating groove array is provided on at least one surface of an inner circumferential surface of the sleeve portion and an outer circumferential surface of the outer shaft portion, which define the radial gap. The radial dynamic pressure generating groove array includes an upper radial dynamic pressure generating groove array and a lower radial dynamic pressure generating groove array. A range of a fixing region in an axial direction between the inner shaft portion and the outer shaft portion in an interference fit state is included in a range between the upper radial dynamic pressure generating groove array and the lower radial dynamic pressure generating groove array.
Abstract translation: 马达包括具有套筒部和固定部的旋转部。 固定部包括轴部，该轴部包括内轴部和外轴部。 径向动压产生槽阵列设置在套筒部分的内圆周表面的至少一个表面和限定径向间隙的外轴部分的外圆周表面上。 径向动压产生槽阵列包括上径向动压产生凹槽阵列和下径向动压产生凹槽阵列。 在上部径向动态压力产生槽阵列和下部径向动态压力产生槽阵列之间的范围内包括在干涉配合状态下在内轴部和外轴部之间沿轴向方向的固定区域的范围。
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公开(公告)号：US08446059B2
公开(公告)日：2013-05-21
申请号：US13662615
申请日：2012-10-29
Applicant: Nidec Corporation
Inventor： Atsushi Yawata , Yasuhiro Suzuki , Shintaro Saeki , Takehito Tamaoka
CPC classification number: H02K5/225 , H02K7/085 , H02K2211/03
Abstract: A spindle motor includes a stator unit and a rotor unit supported to be rotatable with respect to the stator unit. The stator unit includes a stator, a base portion including a through hole, and a circuit board. The circuit board includes a connection portion to which a conductive wire from the stator is connected after passing through the through hole. A lower surface of the base portion includes a central region, a peripheral region, a recess portion, and a protrusion. A position of a distal portion of the protrusion is provided at a level higher than a level of a lowermost surface region of the central region and lower than a level of a bottom surface of the recess portion in a direction parallel or substantially parallel to a central axis.
Abstract translation: 主轴电动机包括定子单元和被支撑为能够相对于定子单元旋转的转子单元。 定子单元包括定子，包括通孔的基部和电路板。 电路板包括连接部分，在通过通孔之后，来自定子的导线被连接到该连接部分。 基部的下表面包括中心区域，周边区域，凹部和突起。 突出部的远端部分的位置设置在高于中心区域的最下表面区域的高度的水平面上，并且在平行于或基本上平行于中心区域的方向上低于凹部的底面的高度 轴。
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公开(公告)号：US11147187B2
公开(公告)日：2021-10-12
申请号：US16672533
申请日：2019-11-04
Applicant: NIDEC CORPORATION
Inventor： Toshihiko Tokeshi , Nobuya Nakae , Takahiro Imanishi , Akihiko Makita , Takehito Tamaoka
IPC: H05K7/20 , H01L23/473
Abstract: A cooling device includes at least two cooling units, each cooling unit including a plate-shaped cold plate extending in a horizontal direction, a radiator extending in a first direction perpendicular to the horizontal direction and having a plurality of plate-shaped fins which, on the cold plate, is disposed parallel to a second direction perpendicular to the first direction, and a pump which supplies a refrigerant liquid to the cold plate and the radiator, in which the pump is adjacent to the radiator and is disposed in the second direction of the radiator, and the pump of one first cooling unit of the two cooling units faces the other second cooling unit of the two cooling units in the second direction or in a third direction orthogonal to the first direction and the second direction.
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公开(公告)号：US10559998B2
公开(公告)日：2020-02-11
申请号：US15783103
申请日：2017-10-13
Applicant: NIDEC CORPORATION
Inventor： Yoichi Sekii , Takehito Tamaoka , Kazuhiro Sato , Kazuhiko Fukushima , Hiroyuki Abe
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 extending in the up-down direction, 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.
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Patent Agency Ranking
公开(公告)号：US20180335043A1
公开(公告)日：2018-11-22
申请号：US16047428
申请日：2018-07-27
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Kazuhiko Fukushima
IPC: F04D29/057 , F16C17/10 , F16C35/02 , F04D29/051 , F04D25/06
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.
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公开(公告)号：US10072672B2
公开(公告)日：2018-09-11
申请号：US15283807
申请日：2016-10-03
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Kazuhiko Fukushima
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 tongue portion are arranged to at least partially overlap with each other in the plan view.
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公开(公告)号：US10047755B2
公开(公告)日：2018-08-14
申请号：US14532183
申请日：2014-11-04
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Kazuhiko Fukushima
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.
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公开(公告)号：US20180202455A1
公开(公告)日：2018-07-19
申请号：US15875134
申请日：2018-01-19
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Masashi Hirayama , Naruyuki Horaitani , Shun Hirano , Takayuki Ito
Abstract: The blowing device includes an impeller that is rotatable about a center axis and a motor that drives the impeller. The impeller includes a plurality of vanes arranged in a circumferential direction, a flange in which the plurality of vanes are provided at the outer circumferential edge in a radial-direction outside, and a plate-shaped first shielding unit located between the vanes adjacent to each other in the circumferential direction. The first shielding unit is connected to a rear edge surface on an opposite side to the rotation direction of the vane and an outside surface located on the radial-direction outside of the flange.
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公开(公告)号：US20180100511A1
公开(公告)日：2018-04-12
申请号：US15725648
申请日：2017-10-05
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka
IPC: F04D25/06 , H02K5/16 , H02K7/14 , F04D29/063 , F04D29/42 , F04D29/051
CPC classification number: F04D25/0606 , F04D25/0613 , F04D29/051 , F04D29/0513 , F04D29/057 , F04D29/063 , F04D29/281 , F04D29/4226 , H02K5/16 , H02K5/1677 , H02K7/14
Abstract: This fan motor includes a motor and an impeller arranged to rotate together with a rotating portion of the motor. The motor includes a stationary portion including a stator, and the rotating portion, which includes a magnet arranged opposite to the stator and which is supported through a bearing portion to be rotatable about a central axis extending in a vertical direction with respect to the stationary portion. The stationary portion includes a shaft arranged to extend along the central axis, and an upper thrust portion arranged to extend radially outward from an upper portion of the shaft. The rotating portion includes a sleeve portion arranged radially opposite to the shaft and axially opposite to the upper thrust portion; and a rotor hub portion arranged to extend in an annular shape around the sleeve portion, and arranged to have the impeller fixed thereto. An upper end of the stationary portion is arranged at a level higher than that of an upper end of the rotating portion.
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