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公开(公告)号：US09909813B2
公开(公告)日：2018-03-06
申请号：US14617203
申请日：2015-02-09
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Kazuhiko Fukushima , Koji Hatanaka
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.
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公开(公告)号：US09909591B2
公开(公告)日：2018-03-06
申请号：US14208999
申请日：2014-03-13
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Hiroaki Hirano
IPC: F04D25/06 , F04D25/08 , F04D19/00 , F04D29/057 , F04D29/063
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.
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公开(公告)号：US09388827B2
公开(公告)日：2016-07-12
申请号：US13942836
申请日：2013-07-16
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Kazuhiko Fukushima , Kyoko Horise , Shinya Ishigami , Takahiro Nagai
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。
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公开(公告)号：US20160186778A1
公开(公告)日：2016-06-30
申请号：US14816768
申请日：2015-08-03
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka
IPC: F04D29/58 , F04D29/056 , F04D29/28 , F04D29/063 , F04D17/16 , F04D25/06
CPC classification number: F04D29/329 , F04D25/0613 , F04D25/08 , F04D29/056 , F04D29/281 , F04D29/30 , F04D29/384 , F04D29/388 , F04D29/4226 , F04D29/582 , F04D29/5853 , G06F1/203 , H05K7/20172
Abstract: A fan includes an impeller and a metallic base portion. The base portion is arranged to be in thermal contact with a heat source. The impeller includes a resin portion including a plurality of blades, and a metal plate. In addition, the metal plate includes a flat plate portion arranged below the blades. A lower surface of the flat plate portion and an upper surface of the base portion are arranged axially opposite to each other with a gap intervening therebetween. An axial dimension of the gap is arranged to be 200 μm or less at least at a portion of the gap. Heat of the heat source is transferred to the metal plate through radiation from the base portion. Then, an air current produced by the impeller absorbs the heat from the metal plate. The heat generated from the heat source is thus efficiently discharged to an outside.
Abstract translation: 风扇包括叶轮和金属底座部分。 基部被布置成与热源热接触。 叶轮包括包括多个叶片的树脂部分和金属板。 此外，金属板包括布置在叶片下方的平板部分。 平板部分的下表面和基部的上表面彼此轴向地相对布置，间隙间隔开。 间隙的轴向尺寸至少在间隙的一部分处被设置为200μm以下。 热源的热量通过来自基部的辐射传递到金属板。 然后，由叶轮产生的气流吸收来自金属板的热量。 因此，从热源产生的热量被有效地排放到外部。
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公开(公告)号：US09348379B2
公开(公告)日：2016-05-24
申请号：US14209524
申请日：2014-03-13
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Hiroaki Hirano
CPC classification number: G06F1/203 , F04D25/0606 , F04D29/063 , F04D29/4226 , F04D29/5806
Abstract: A blower fan according to a preferred embodiment of the present invention is a centrifugal fan. At least a portion of each of a plurality of blades of an impeller portion is arranged above a stator. A lower plate portion is arranged to define an air channel portion and an air outlet arranged on a lateral side of the impeller portion when a side wall portion arranged to surround an outer circumference of the impeller portion and an upper plate portion arranged above the impeller portion are present. The air channel portion is arranged to extend in a circumferential direction between an outer circumference of the stator and the side wall portion. At least a portion of a circuit board is arranged in the air channel portion and on the lower plate portion. A plurality of lead wires extending from the stator are connected to the circuit board in the air channel portion.
Abstract translation: 根据本发明的优选实施例的鼓风机是离心式风扇。 叶轮部分的多个叶片中的每一个的至少一部分布置在定子上方。 下板部分被布置成当设置成围绕叶轮部分的外圆周的侧壁部分和布置在叶轮部分上方的上板部分时限定布置在叶轮部分的侧面上的空气通道部分和空气出口 存在。 空气通道部分布置成在定子的外周和侧壁部分之间在圆周方向上延伸。 电路板的至少一部分布置在空气通道部分和下板部分中。 从定子延伸的多根引线与空气通道部分中的电路板连接。
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Patent Agency Ranking
公开(公告)号：US09064530B1
公开(公告)日：2015-06-23
申请号：US14629641
申请日：2015-02-24
Applicant: NIDEC CORPORATION
Inventor： Hiroyuki Abe , Takehito Tamaoka , Kazuhiro Sato
CPC classification number: G11B19/2009 , H02K1/146 , H02K1/187 , H02K3/522 , H02K5/225 , H02K2213/03
Abstract: A stator includes a stator core and a plurality of coils. The stator core includes a core-back, a plurality of teeth portions, and a plurality of lug portions. Each of the plurality of teeth portions includes a coil winding portion and a tip end portion. The core-back includes a slanted portion. An axial position of a magnetic center of the rotor magnet radially outward of the stator overlaps with an axially extending range of the tip end portion. A thickness of the slanted portion in a direction perpendicular or substantially perpendicular to an upper surface of the slanted portion is smaller than an axial thickness of the coil winding portion.
Abstract translation: 定子包括定子芯和多个线圈。 定子芯包括芯背，多个齿部分和多个凸耳部分。 多个齿部分中的每一个包括线圈缠绕部分和末端部分。 芯背包括倾斜部分。 与定子的径向外侧的转子磁体的磁心的轴向位置与前端部的轴向延伸范围重叠。 倾斜部分在与倾斜部分的上表面垂直或基本垂直的方向上的厚度小于线圈缠绕部分的轴向厚度。
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公开(公告)号：US20150043158A1
公开(公告)日：2015-02-12
申请号：US14208725
申请日：2014-03-13
Applicant: NIDEC CORPORATION
Inventor： Hiroaki Hirano , Takehito Tamaoka
CPC classification number: G06F1/203 , F04D25/0606 , F04D25/082 , F04D29/063 , F04D29/4226 , G06F1/206
Abstract: A blower fan according to a preferred embodiment of the present invention is a centrifugal fan including a stationary portion, a bearing mechanism, and a rotating portion. The stationary portion includes a lower plate portion and a stator. The stator includes a plurality of teeth each of which has a radially inner end including an upward projecting portion arranged to extend axially upward.
Abstract translation: 根据本发明的优选实施例的鼓风机是包括静止部分，轴承机构和旋转部分的离心式风扇。 固定部分包括下板部分和定子。 定子包括多个齿，每个齿具有径向内端，该径向内端包括设置成向上轴向延伸的向上突出部分。
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公开(公告)号：US20150010411A1
公开(公告)日：2015-01-08
申请号：US14209088
申请日：2014-03-13
Applicant: Nidec Corporation
Inventor： Takehito Tamaoka , Kazuhiko Fukushima
IPC: F04D29/057 , F16C32/06
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。
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公开(公告)号：US08542459B2
公开(公告)日：2013-09-24
申请号：US13739415
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 , Hironori Ando , Katsuya Takahashi
CPC classification number: H02K7/08 , F16C17/107 , F16C33/745 , F16C2226/40 , F16C2370/12 , G11B15/00 , G11B19/2036 , G11B25/043 , H02K5/1675
Abstract: A motor includes a seal cap and a tubular portion. The seal cap includes a first seal cap lower surface which is an annular surface facing axially downward, and a second seal cap lower surface which is an annular surface facing axially downward and arranged radially outward of the first seal cap lower surface. The tubular portion includes a first tubular portion upper surface which is an annular surface arranged axially opposite to the first seal cap lower surface, and a second tubular portion upper surface which is an annular surface arranged radially outward of the first tubular portion upper surface and in contact with the second seal cap lower surface. The first tubular portion upper surface includes an oil-repellent film region covered with an oil-repellent film. A substantially annular radially extending gap is defined between the first tubular portion upper surface and the first seal cap lower surface.
Abstract translation: 马达包括密封盖和管状部分。 密封盖包括第一密封盖下表面，其是面向轴向向下的环形表面，以及第二密封帽下表面，第二密封帽下表面是面向轴向向下并且布置在第一密封盖下表面的径向外侧的环形表面。 管状部分包括第一管状部分上表面，其是与第一密封盖下表面轴向相对布置的环形表面，以及第二管状部分上表面，其是设置在第一管状部分上表面的径向外侧的环形表面， 与第二密封盖下表面接触。 第一管状部分上表面包括被拒油膜覆盖的拒油膜区域。 在第一管状部分上表面和第一密封帽下表面之间限定基本环形的径向延伸的间隙。
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公开(公告)号：US11937400B2
公开(公告)日：2024-03-19
申请号：US17684561
申请日：2022-03-02
Applicant: Nidec Corporation
Inventor： Naoyuki Takashima , Takehito Tamaoka , Toshihiko Tokeshi
IPC: H05K7/20 , H01L23/473
CPC classification number: H05K7/20272 , H05K7/20263 , H01L23/473 , H05K7/20254
Abstract: A heat dissipation device includes a first heat dissipator, a second heat dissipator, a first tank connected to one side of each of the first heat dissipator and the second heat dissipator in a first direction, and a second tank connected to another side in the first direction. A coolant flows through an inside of the first heat dissipator, the second heat dissipator, the first tank, and the second tank. The first tank includes a tank-side first outflow port through which the coolant flows out to a first cooling device, and a tank-side first inflow port through which the coolant from the first cooling device flows in. The second tank includes a tank-side second outflow port through which the coolant flows out to a second cooling device, and a tank-side second inflow port through which the coolant from the second cooling device flows in.
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