公开(公告)号：US20190264694A1

公开(公告)日：2019-08-29

申请号：US16267563

申请日：2019-02-05

Applicant: Nidec Corporation

Inventor： Tomoyuki TSUKAMOTO ,  Kazuhiko FUKUSHIMA

IPC: F04D17/16 ,  F04D25/06 ,  F04D29/28 ,  F04D29/62 ,  F04D29/42 ,  F04D29/66

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.

公开(公告)号：US20190230814A1

公开(公告)日：2019-07-25

申请号：US16238543

申请日：2019-01-03

Applicant: Nidec Corporation

Inventor： Koji HATANAKA ,  Takehito TAMAOKA ,  Kazuhiko FUKUSHIMA

IPC: H05K7/20 ,  F04D13/06 ,  F04D29/42 ,  F28D15/02 ,  G06F1/20

Abstract: In an air blower, an exhaust includes fins and extends in a first direction that is a radial component of an impeller. Assuming that a first virtual circle is a circle connecting ends on a side opposed to the impeller in a fin group in a first direction, and that a second virtual circle is a circle larger than a virtual circle connecting radially outer edges of blades of the impeller with a central axis as a center in diameter and is connected to the first virtual circle at one point, a radius of the first virtual circle is larger than a radius of the second virtual circle.

公开(公告)号：US20180048208A1

公开(公告)日：2018-02-15

申请号：US15783103

申请日：2017-10-13

Applicant: NIDEC CORPORATION

Inventor： Yoichi SEKII ,  Takehito TAMAOKA ,  Kazuhiro SATO ,  Kazuhiko FUKUSHIMA ,  Hiroyuki ABE

IPC: H02K5/22 ,  G11B25/04 ,  H02K3/52 ,  H02K1/14 ,  H02K3/44 ,  H02K5/00

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.

公开(公告)号：US20130194701A1

公开(公告)日：2013-08-01

申请号：US13751380

申请日：2013-01-28

Applicant: NIDEC CORPORATION

Inventor： Kazuhiko FUKUSHIMA

IPC: H02K5/167 ,  G11B19/20

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。