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1. 发明申请

US20230066950A1 MOTOR AND AIRCRAFT 有权
公开(公告)号：US20230066950A1
公开(公告)日：2023-03-02
申请号：US17893175
申请日：2022-08-23
申请人： NIDEC CORPORATION
发明人： Junya MIZUKAMI
IPC分类号： H02K9/04 , B64C39/02 , B64D27/24 , H02K5/20 , H02K1/16
摘要： A rotor of a motor includes a cylindrical portion, a first plate portion, a second plate portion, and a side hole. The cylindrical portion is arranged on a radially outer side with respect to the stator and extends in the axial direction. The first plate portion is arranged on a first axial side with respect to the stator, and expands radially inward from a first axial end of the cylindrical portion. The second plate portion is arranged on a second axial side with respect to the stator, and expands radially inward from a second axial end of the cylindrical portion. The side hole penetrates the cylindrical portion in a radial direction. The stator holder has a holder through-hole. The holder through-hole is arranged on the radially inner side with respect to the stator and penetrates the stator holder in the axial direction.

2. 发明申请

US20130128379A1 SPINDLE MOTOR AND STORAGE DISK DRIVE 有权
标题翻译：主轴电机和存储盘驱动器
公开(公告)号：US20130128379A1
公开(公告)日：2013-05-23
申请号：US13739402
申请日：2013-01-11
申请人： Nidec Corporation
发明人： Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Takehito TAMAOKA , Takashi YAMAMOTO , Shigeki HORIKI , Kazushi MIURA , Mitsuhiro TAKEMOTO , Kazuhiro SATO
IPC分类号： H02K7/08 , G11B19/00
CPC分类号： H02K7/08 , F16C17/107 , F16C33/1065 , F16C33/107 , F16C33/745 , F16C2202/60 , F16C2370/12 , G11B19/00 , G11B19/2036 , G11B25/043 , H02K5/1675
摘要： A motor includes a stationary portion and a rotating portion. The stationary portion includes a shaft portion and an upper thrust portion. The upper thrust portion includes a tubular first outer circumferential surface arranged radially outside the upper thrust portion, and a tubular second outer circumferential surface arranged above the first outer circumferential surface. The rotating portion includes a sleeve portion, a tubular portion, and an annular cover portion. The annular cover portion includes a plate portion and an inner annular projecting portion arranged to project upward or downward. An inner circumferential surface of the inner annular projecting portion is arranged above an inner circumferential surface of the tubular portion. An upper seal portion includes a surface of a lubricating oil located therein. The inner circumferential surface of the inner annular projecting portion and the second outer circumferential surface are arranged opposite to each other with an axially extending gap therebetween.
摘要翻译：电动机包括固定部分和旋转部分。固定部分包括轴部分和上推力部分。上推力部包括设置在上推力部的径向外侧的管状的第一外周面和配置在第一外周面的上方的管状的第二外周面。旋转部分包括套筒部分，管状部分和环形盖部分。环形盖部分包括板部分和布置成向上或向下突出的内环形突出部分。内环形突出部的内周面设置在管状部的内周面的上方。上密封部分包括位于其中的润滑油的表面。内环形突出部和第二外周面的内周面彼此相对设置，在其间具有轴向延伸的间隙。

3. 发明申请

US20190131858A1 MOTOR AND ROTARY DRIVE APPARATUS 审中-公开
公开(公告)号：US20190131858A1
公开(公告)日：2019-05-02
申请号：US16145312
申请日：2018-09-28
申请人： Nidec Corporation
发明人： Junya MIZUKAMI
IPC分类号： H02K21/22 , H02K7/04 , H02K11/00 , H02K11/22
摘要： A motor includes a stationary portion including a stator, and a rotating portion supported to be rotatable about a central axis extending in a vertical direction with respect to the stationary portion. The rotating portion includes a rotor hub portion extending in an annular shape around the central axis, a magnet including a pole surface radially opposite to the stator, a yoke fixed to a radial outside of the magnet, and connected to the rotor hub portion, a flywheel axially above the rotor hub portion, a first seal portion extending in an annular shape radially outside of the yoke; and a second seal portion extending in an annular shape radially outside of the first seal portion.

4. 发明申请

US20160053770A1 DYNAMIC PRESSURE BEARING PUMP 有权
标题翻译：动态压力轴承泵
公开(公告)号：US20160053770A1
公开(公告)日：2016-02-25
申请号：US14820678
申请日：2015-08-07
申请人： Nidec Corporation
发明人： Junya MIZUKAMI , Hideki NISHIMURA , Yoshito NISHITANI , Michihiro ITO , Naohiro NAGASAWA
IPC分类号： F04D29/22 , F04D29/42 , F04D29/043 , F04D1/00 , F04D13/06
CPC分类号： F04D29/186 , F04D3/00 , F04D5/001 , F04D11/00 , F04D13/0633 , F04D29/0476
摘要： A pump a shaft portion arranged to extend in a vertical direction; a rotor portion arranged to surround an outer circumference of the shaft portion, and including a magnet; and a housing joined to the shaft portion, and arranged to contain the rotor portion. The housing includes a stator arranged opposite to the magnet; a rotor accommodating portion arranged to accommodate the rotor portion; and an inlet and an outlet each of which is arranged to pass through a portion of the rotor accommodating portion. A surface of at least one of the rotor portion, the shaft portion, and the rotor accommodating portion includes at least one first dynamic pressure groove arranged to support rotation of the rotor portion. A surface of at least one of the rotor portion and the rotor accommodating portion includes at least one second dynamic pressure groove arranged to transfer a fluid from the inlet to the outlet.
摘要翻译：泵，轴部，其布置成在垂直方向上延伸; 转子部分，其布置成围绕所述轴部分的外圆周，并且包括磁体; 以及与所述轴部接合的壳体，并且设置成容纳所述转子部。壳体包括与磁体相对布置的定子; 转子容纳部分，其布置成容纳转子部分; 以及各自设置成通过转子容纳部的一部分的入口和出口。转子部分，轴部分和转子容纳部分中的至少一个的表面包括布置成支撑转子部分的旋转的至少一个第一动压槽。转子部分和转子容纳部分中的至少一个的表面包括布置成将流体从入口传送到出口的至少一个第二动压槽。

5. 发明申请

US20150236559A1 MOTOR AND ELECTRONIC EQUIPMENT INCLUDING THE MOTOR 有权
标题翻译：包括电机的电机和电子设备
公开(公告)号：US20150236559A1
公开(公告)日：2015-08-20
申请号：US14524171
申请日：2014-10-27
申请人： Nidec Corporation
发明人： Junya MIZUKAMI
IPC分类号： H02K5/16 , G11B19/20 , H02K1/18
CPC分类号： G11B19/2009 , F16C17/107 , F16C2226/40 , G11B19/2036 , H02K1/187 , H02K5/1675 , H02K5/1677 , H02K7/003 , H02K7/086
摘要： In a motor, a lower thrust portion is defined by a flange portion extending radially outward from an outer circumferential surface of a shaft portion of a shaft and a plate portion extending radially inward from an inner circumferential surface of a cylindrical wall of a bearing cup portion which axially overlap with each other. The flange portion and the plate portion include a first adhesive portion radially opposed thereto and a second adhesive portion axially opposed thereto. An adhesive is located in each of the first adhesive portion and the second adhesive portion such that the shaft and the bearing cup portion have excellent bonding strength to withstand an axial load.
摘要翻译：在电动机中，下推力部由从轴的轴部的外周面径向向外延伸的凸缘部和从轴承杯部的圆筒壁的内周面径向向内延伸的板部形成它们彼此轴向重叠。凸缘部分和板部分包括与其径向相对的第一粘合剂部分和与其轴向相对的第二粘合剂部分。粘合剂位于第一粘合部分和第二粘合部分中的每一个中，使得轴和轴承杯部分具有优异的粘合强度以承受轴向载荷。

6. 发明申请

US20230064660A1 MOTOR AND AIRCRAFT 有权
公开(公告)号：US20230064660A1
公开(公告)日：2023-03-02
申请号：US17893176
申请日：2022-08-23
申请人： NIDEC CORPORATION
发明人： Junya MIZUKAMI
IPC分类号： H02K9/02 , B64D27/24 , H02K5/20 , H02K1/16 , H02K1/24
摘要： A motor includes a rotor and a stator. The rotor can rotate about a central axis extending in an axial direction. The stator includes a stator core having an annular shape surrounding the central axis. The rotor includes a cylindrical portion, a first plate portion, a second plate portion, and a hole. The cylindrical portion is arranged on a radially outer side with respect to the stator and extends in the axial direction. The first plate portion is arranged on a first axial side with respect to the stator, and expands radially inward from a first axial end of the cylindrical portion. The second plate portion is arranged on a second axial side with respect to the stator, and expands radially inward from a second axial end of the cylindrical portion. The hole penetrates at least one of the cylindrical portion, the first plate portion, and the second plate portion.

7. 发明申请

US20220319547A1 SPINDLE MOTOR AND DISK DRIVE DEVICE INCLUDING THE SAME 有权
公开(公告)号：US20220319547A1
公开(公告)日：2022-10-06
申请号：US17711039
申请日：2022-04-01
申请人： NIDEC CORPORATION
发明人： Kazuhiro SATO , Masahiro IMAHORI , Junya MIZUKAMI , Shingo SUGINOBU , Tomoki UCHIBORI
IPC分类号： G11B25/04 , G11B19/20
摘要： A spindle motor includes a base, a shaft arranged on the base and extending in a vertical direction, a stator having a coil defined by a wound conductive wire and arranged on an upper surface of the base, and a rotor rotatably supported around the shaft. The base has a through hole that penetrates the base from the upper surface to a lower surface. The conductive wire is drawn out to the lower surface side through the inside of the through hole. The through hole is sealed by a sealing material. The through hole includes a columnar lower column body and a columnar upper column body. The lower column body is arranged on the lower surface side of the base. A cross-sectional area of the upper column body orthogonal to an axial direction is smaller than a cross-sectional area of the lower column body orthogonal to the axial direction.

8. 发明申请

US20190011692A1 ROTARY DRIVE APPARATUS 审中-公开
公开(公告)号：US20190011692A1
公开(公告)日：2019-01-10
申请号：US15725381
申请日：2017-10-05
申请人： Nidec Corporation
发明人： Junya MIZUKAMI
IPC分类号： G02B26/08 , G02B7/02 , H02K7/02 , H02K7/14
摘要： This rotary drive apparatus is arranged to cause incoming light coming from a light source to be reflected, and rotate resulting reflected light, and includes a motor including a rotating portion arranged to rotate about a central axis extending in a vertical direction; and a flywheel supported by the rotating portion, and caused by the rotating portion to rotate about the central axis. The flywheel includes a lens arranged to allow the reflected light to pass therethrough; a lens frame arranged to be in contact with at least a portion of a peripheral portion of the lens; and a main body arranged to support the lens or the lens frame. The main body includes an outer cylindrical portion arranged to define at least a portion of an outer circumferential surface of the main body, and an accommodating portion in which the lens frame is arranged. At least a portion of the lens frame and at least a portion of the main body are arranged to have a first adhesion portion therebetween. At least a portion of the lens is arranged radially between the main body and the lens frame.

9. 发明申请

US20160053769A1 DYNAMIC PRESSURE BEARING PUMP 审中-公开
标题翻译：动态压力轴承泵
公开(公告)号：US20160053769A1
公开(公告)日：2016-02-25
申请号：US14820675
申请日：2015-08-07
申请人： Nidec Corporation
发明人： Junya MIZUKAMI , Hideki NISHIMURA , Yoshito NISHITANI , Michihiro ITO , Naohiro NAGASAWA
IPC分类号： F04D29/22 , F04D29/42 , F04D29/043 , F04D1/00 , F04D13/06
CPC分类号： F04D29/186 , F04D3/00 , F04D5/001 , F04D11/00 , F04D13/0633 , F04D29/0476
摘要： A pump a shaft portion arranged to extend in a vertical direction; a rotor portion arranged to surround an outer circumference of the shaft portion, and including a magnet; and a housing joined to the shaft portion, and arranged to contain the rotor portion. The housing includes a stator arranged opposite to the magnet; a rotor accommodating portion arranged to accommodate the rotor portion; and an inlet and an outlet each of which is arranged to pass through a portion of the rotor accommodating portion. A surface of at least one of the rotor portion, the shaft portion, and the rotor accommodating portion includes at least one first dynamic pressure groove arranged to support rotation of the rotor portion. A surface of at least one of the rotor portion and the rotor accommodating portion includes at least one second dynamic pressure groove arranged to transfer a fluid from the inlet to the outlet. The rotor portion includes a through hole arranged to pass therethrough in an axial direction.
摘要翻译：泵，轴部，其布置成在垂直方向上延伸; 转子部分，其布置成围绕所述轴部分的外圆周，并且包括磁体; 以及与所述轴部接合的壳体，并且设置成容纳所述转子部。壳体包括与磁体相对布置的定子; 转子容纳部分，其布置成容纳转子部分; 以及各自设置成通过转子容纳部的一部分的入口和出口。转子部分，轴部分和转子容纳部分中的至少一个的表面包括布置成支撑转子部分的旋转的至少一个第一动压槽。转子部分和转子容纳部分中的至少一个的表面包括布置成将流体从入口传送到出口的至少一个第二动压槽。转子部分包括沿轴向穿过的通孔。

10. 发明申请

US20190146208A1 ROTARY DRIVE APPARATUS 审中-公开
公开(公告)号：US20190146208A1
公开(公告)日：2019-05-16
申请号：US16147909
申请日：2018-10-01
申请人： Nidec Corporation
发明人： Junya MIZUKAMI
IPC分类号： G02B26/08 , H02K7/02
摘要： A rotary drive apparatus that rotates while reflecting light emitted from a light source includes a motor, a flywheel supported by a rotating portion of the motor, and a plate-shaped mirror. The mirror is fixed to the flywheel with adhesives located at corner portions of the mirror and spaced apart from one another along end sides of the mirror. Thus, the mirror is fixed to the flywheel with the adhesives, and distortion of the mirror due to curing of the adhesives is reduced or prevented.

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