公开(公告)号：US20220243735A1

公开(公告)日：2022-08-04

申请号：US17589921

申请日：2022-02-01

Applicant: Nidec Corporation

Inventor： Yoshihisa KITAMURA ,  Toshihiko TOKESHI ,  Takehito TAMAOKA ,  Takaya OKUNO

IPC: F04D25/16 ,  F04D25/06 ,  F04D29/42 ,  F04D29/58

Abstract: A pump device includes a first pump, a second pump, and a casing. The first pump and the second pump are centrifugal pumps. The casing includes a first pump chamber in which the first pump is located and a second pump chamber in which the second pump is located. The first pump chamber includes a first bottom surface, a first side surface, a first inlet, and a first outlet. The first bottom surface is located on one side in the first direction with respect to a first motor of the first pump. The first side surface is connected to the first bottom surface and extends in the first direction. The first outlet is open with respect to the first side surface. The second pump chamber includes a second bottom surface, a second side surface, a second inlet, and a second outlet.

公开(公告)号：US20220151101A1

公开(公告)日：2022-05-12

申请号：US17515802

申请日：2021-11-01

Applicant: Nidec Corporation

Inventor： Toshihiko TOKESHI ,  Takehito TAMAOKA ,  Naoyuki TAKASHIMA

IPC: H05K7/20

Abstract: A liquid feeder includes a first casing with a flow path, and a pump. An upstream flow path located upstream of the pump and communicating with a pump inlet includes a first flow path, a second flow path, a third flow path, a fourth flow path, a fifth flow path, and a sixth flow path that are located on one side in a first direction, another side in the first direction, one side in a second direction, another side in the third direction, one side in the third direction, and another side in the third direction with respect to the pump inlet, respectively.

公开(公告)号：US20220025890A1

公开(公告)日：2022-01-27

申请号：US17381497

申请日：2021-07-21

Applicant: Nidec Corporation

Inventor： Yoshihisa KITAMURA ,  Toshihiko TOKESHI ,  Takehito TAMAOKA

IPC: F04D13/14 ,  F28D15/00 ,  F28F3/12 ,  F28F27/02 ,  F04D29/40 ,  F04D13/16

Abstract: A pump device includes a flow path through which liquid flows, a first pump in the flow path, a second pump in the flow path, a first pump downstream flow path located downstream of the first pump in the flow path, a second pump downstream flow path located downstream of the second pump in the flow path, a connection flow path connected to the first pump downstream flow path and the second pump downstream flow path in the flow path, a first check valve provided in the first pump downstream flow path, and a second check valve provided in the second pump downstream flow path or the connection flow path.

公开(公告)号：US20200214176A1

公开(公告)日：2020-07-02

申请号：US16689177

申请日：2019-11-20

Applicant: Nidec Corporation

Inventor： Toshihiko TOKESHI ,  Nobuya NAKAE ,  Takehito TAMAOKA

IPC: H05K7/20 ,  B23P15/26

Abstract: A cooling device includes: a cold plate; a radiator; a pump; a first tank; and a second tank. The cold plate has a first cooling medium flow passage. The radiator has fins and pipes forming a second cooling medium flow passage. The pump circulates a cooling medium. The first tank is coupled to one ends of the pipes. The second tank couples the other ends of the pipes to the pump. The radiator is disposed on the cold plate. The cold plate has a bottom wall portion, a top wall portion, a side wall portion, an internal space, an inlet port, and an outlet port. The bottom wall portion has blades, and an inner peripheral wall of the side wall portion has a first bent portion.

公开(公告)号：US20190307019A1

公开(公告)日：2019-10-03

申请号：US16297770

申请日：2019-03-11

Applicant: Nidec Corporation

Inventor： Nobuya NAKAE ,  Akihiko MAKITA ,  Hidenobu TAKESHITA ,  Tomotsugu SUGIYAMA ,  Toshihiko TOKESHI ,  Takehito TAMAOKA

IPC: H05K7/20 ,  F28F1/02 ,  F28D1/053

Abstract: A cooling apparatus includes a cold plate including a lower surface to be in contact with a heat-radiating component, and a first coolant passage in which a coolant flows, a radiator including fins to perform cooling and pipes each defining a second coolant passage in communication with the first coolant passage, a pump to circulate the coolant, a first tank joined to one end of each of the pipes, and a second tank to join another end of each of the pipes to the pump. The radiator is provided on the cold plate, and the pump is adjacent to the second tank.

公开(公告)号：US20150170701A1

公开(公告)日：2015-06-18

申请号：US14629641

申请日：2015-02-24

Applicant: NIDEC CORPORATION

Inventor： Hiroyuki ABE ,  Takehito TAMAOKA ,  Kazuhiro SATO

IPC: G11B19/20 ,  H02K1/14 ,  H02K1/18

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。

公开(公告)号：US20150108861A1

公开(公告)日：2015-04-23

申请号：US14587099

申请日：2014-12-31

Applicant: NIDEC CORPORATION

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

IPC: H02K5/22 ,  H02K3/44

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.

Abstract translation: 电动机包括固定单元和旋转单元。 固定单元包括定子，具有沿上下方向延伸的至少一个孔的基部和柔性布线基板。 柔性布线基板通过至少一个孔到达比基部的下表面高的位置，并且被布置成向定子提供电力。 柔性布线基板包括布置成高于基部的下表面并连接到定子的连接部分。 连接部分包括布置在其下表面上的焊料部分以覆盖从定子的线圈延伸的引线的一部分。 焊料部分的至少一部分位于孔内。

公开(公告)号：US20140334035A1

公开(公告)日：2014-11-13

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: H02K5/16 ,  H02K7/08 ,  G11B19/20

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。

公开(公告)号：US20130300234A1

公开(公告)日：2013-11-14

申请号：US13946108

申请日：2013-07-19

Applicant: NIDEC CORPORATION

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

IPC: 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, 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.

Abstract translation: 电动机包括固定单元和旋转单元。 固定单元包括定子，具有至少一个孔的基部和柔性布线基板。 柔性布线基板通过至少一个孔到达比基部的下表面高的位置，并且被布置成向定子提供电力。 柔性布线基板包括布置成高于基部的下表面并连接到定子的连接部分。 连接部分包括布置在其下表面上的焊料部分以覆盖从定子的线圈延伸的引线的一部分。 焊料部分的至少一部分位于孔内。