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公开(公告)号：US11136988B2
公开(公告)日：2021-10-05
申请号：US16787276
申请日：2020-02-11
Applicant: Nidec Corporation
Inventor： Kazuhiko Fukushima , Takehito Tamaoka
IPC: F16C32/06 , F04D25/06 , F04D29/05 , F04D19/00 , F04D29/056
Abstract: A gas dynamic bearing includes a shaft extending along a central axis extending vertically, and a sleeve with a hole opening at least at one end of the sleeve in an axial direction, at least a portion of the shaft housed inside the hole. The sleeve includes dynamic pressure grooves in an inner peripheral surface of the hole. The shaft includes a core portion, and a protective portion that is disposed on an outer peripheral surface of the core portion and that includes at least a portion facing the inner peripheral surface of the hole in a radial direction. The protective portion includes a first protective portion and a second protective portion. The first protective portion is at least above or below the second protective portion in the axial direction, and includes at least a portion with a thickness in the radial direction more than a thickness of the second protective portion in the radial direction.
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公开(公告)号：US20170023019A1
公开(公告)日：2017-01-26
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.
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。 在平面图中，热源接触部分和舌部被布置成至少部分地彼此重叠。
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公开(公告)号：US20140178186A1
公开(公告)日：2014-06-26
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: F04D29/40
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.
Abstract translation: 在根据本发明的优选实施例的鼓风机中，侧壁部分包括设置成在空气出口和叶轮之间突出的舌部。 舌部的侧表面包括设置成接触包括中心轴线的第一假想平面的舌部末端; 第一舌部侧面，其布置成沿着叶片的外封套从舌部延伸; 以及第二舌部侧面，其设置成从舌部朝向侧缘延伸，所述侧缘是所述排气口与所述侧壁部的交线。 第二舌部侧表面布置成穿过包括中心轴线并且接触侧边缘的第二假想平面。
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公开(公告)号：US20130323093A1
公开(公告)日：2013-12-05
申请号：US13785768
申请日：2013-03-05
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Kazuhiko Fukushima , Hiroaki Hirano , Kouta Kabune
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。
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公开(公告)号：US09837872B2
公开(公告)日：2017-12-05
申请号：US14587099
申请日：2014-12-31
Applicant: NIDEC CORPORATION
Inventor： Yoichi Sekii , Takehito Tamaoka , Kazuhiro Sato , Kazuhiko Fukushima , Hiroyuki Abe
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 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：US09599123B2
公开(公告)日：2017-03-21
申请号：US14089192
申请日：2013-11-25
Applicant: NIDEC CORPORATION
Inventor： Takehito Tamaoka , Kazuhiko Fukushima , Kyoko Horise , Shinya Ishigami , Takahiro Nagai
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.
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公开(公告)号：US09523373B2
公开(公告)日：2016-12-20
申请号：US14499680
申请日：2014-09-29
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 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。
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公开(公告)号：US20160003261A1
公开(公告)日：2016-01-07
申请号：US14629874
申请日：2015-02-24
Applicant: Nidec Corporation
Inventor： Takehito Tamaoka , Kazuhiko Fukushima , Koji Hatanaka
CPC classification number: F04D29/584 , F04D17/16 , F04D19/002 , F04D25/0613 , F04D29/42 , F04D29/4206 , F04D29/4226 , F04D29/582 , F04D29/5853 , G06F1/20 , G06F1/203 , G06F1/206 , H01L23/427 , H05K7/20172
Abstract: The fan includes an impeller, a motor, and a housing. The housing includes a side wall portion and a lower plate portion. at least one of the lower plate portion and 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 a lateral side of the impeller. At or near an opposite end of the heat pipe, the heat pipe includes a contact portion arranged to be in contact with one of an upper surface of the lower plate portion and a lower surface of the upper plate portion. A longitudinal direction of at least a portion of the heat pipe extends at an angle with respect to the air outlet.
Abstract translation: 风扇包括叶轮，马达和壳体。 壳体包括侧壁部分和下部板部分。 布置成覆盖叶轮的上侧的下板部分和上板部分中的至少一个包括空气入口。 上板部分，侧壁部分和下板部分布置成一起限定在叶轮的侧面上的空气出口。 在热管的相对端或附近，热管包括布置成与下板部分的上表面和上板部分的下表面之一接触的接触部分。 热管的至少一部分的纵向方向相对于空气出口成一定角度延伸。
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公开(公告)号：US08582233B2
公开(公告)日：2013-11-12
申请号：US13751380
申请日：2013-01-28
Applicant: Nidec Corporation
Inventor： Kazuhiko Fukushima
IPC: G11B17/02
CPC classification number: H02K5/1675 , G11B19/2009 , H02K5/1677
Abstract: A spindle motor, which is for use in a disk drive apparatus which includes a housing including a base member and a cover member, includes a stationary portion and a rotating portion. The stationary portion includes a stationary shaft and the base member. The rotating portion includes a sleeve portion. The stationary shaft is inserted into the bearing hole. The stationary shaft includes an annular surface arranged to come into direct or indirect contact with the cover member, the annular surface being located higher than the sleeve portion and extending in a circumferential direction, and an upper protrusion arranged to be fixed to a cover inner circumferential surface defining a cover penetrating hole of the cover member, the upper protrusion protruding upward from the radial inner side of the annular surface. The base member includes a fixing portion arranged to directly or indirectly fix the cover member.
Abstract translation: 一种用于盘驱动装置的主轴电动机，其包括具有基座部件和盖部件的壳体，其包括固定部和转动部。 固定部分包括固定轴和基部构件。 旋转部分包括套筒部分。 固定轴插入轴承孔。 固定轴包括设置成与盖构件直接或间接接触的环形表面，环形表面位于比套筒部分高并且在圆周方向上延伸的上表面和布置成固定到盖内周的上突起 表面限定了盖构件的盖通孔，上突起从环形表面的径向内侧向上突出。 底座部件包括一个直接或间接固定盖件的固定部分。
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公开(公告)号：US10962017B2
公开(公告)日：2021-03-30
申请号：US16267563
申请日：2019-02-05
Applicant: Nidec Corporation
Inventor： Tomoyuki Tsukamoto , Kazuhiko Fukushima
Abstract: A centrifugal fan includes a motor, a support body, a rotating body, and a housing. The motor includes a rotor hub that rotates around a central axis extending up and down. The support body is fixed to the rotor hub and rotates together with the rotor hub. The rotating body is different from the support body in material. The rotating body is a continuous porous body. The housing accommodates the rotating body, the support body, and the motor. The housing includes an air inlet open in an axial direction and at least one air outlet open in a radial direction. A radially inner surface of the rotating body opposes a radially outer surface of the rotor hub with a gap interposed therebetween.
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