公开(公告)号：US5734241A

公开(公告)日：1998-03-31

申请号：US686453

申请日：1996-07-25

申请人： Tadashi Okada ,  Akira Inui

发明人： Tadashi Okada ,  Akira Inui

IPC分类号： H02K1/18 ,  H02K1/27 ,  H02K5/00 ,  H02K5/173 ,  H02K7/116 ,  H02K11/04 ,  H02K29/00 ,  H02K29/03 ,  H02K29/14 ,  H02P6/10 ,  H02P6/24

CPC分类号： H02K1/2786 ,  H02K1/187 ,  H02K11/33 ,  H02K29/14 ,  H02K5/00 ,  H02K7/116 ,  H02P6/24 ,  H02K29/00 ,  H02K29/03 ,  H02K5/173 ,  H02P6/10

摘要： A brushless motor includes a stationary member; a rotating member rotatably supported with respect to the stationary member; a stator provided in the stationary member and provided with a stator coil for generating current magnetic field under an exciting state; and a rotor magnet provided in the rotating member for obtaining a revolutionary power due to an electromagnetic mutual effect with the current magnet field of the stator coil. The rotor magnet is formed such that segment-shaped magnets are placed annularly with predetermined gaps circumferentially. The gaps are filled with a magnetic resin material.

摘要翻译： 无刷电动机包括固定构件; 相对于固定构件可旋转地支撑的旋转构件; 定子，其设置在所述固定构件中，并且设置有用于在激励状态下产生电流磁场的定子线圈; 以及设置在旋转构件中的转子磁体，用于由于与定子线圈的电流磁场的电磁相互作用而获得革命性的功率。 转子磁体形成为使得分段形状的磁体以圆周方向以预定的间隙环形地放置。 间隙填充有磁性树脂材料。

公开(公告)号：US5579188A

公开(公告)日：1996-11-26

申请号：US469643

申请日：1995-06-06

申请人： John C. Dunfield ,  Gunter K. Heine ,  Kamran Oveyssi ,  Marcel Jufer

发明人： John C. Dunfield ,  Gunter K. Heine ,  Kamran Oveyssi ,  Marcel Jufer

IPC分类号： G11B19/20 ,  H02K3/04 ,  H02K3/28 ,  H02K5/16 ,  H02K5/173 ,  H02K7/08 ,  H02K15/04 ,  H02K21/12 ,  H02K21/14 ,  H02K21/22 ,  H02K29/00 ,  G11B17/04 ,  G11B17/08

CPC分类号： H02K21/22 ,  G11B19/2009 ,  H02K15/0478 ,  H02K21/12 ,  H02K21/14 ,  H02K5/163 ,  H02K7/085 ,  H02K7/086 ,  H02K3/04 ,  H02K3/28 ,  H02K5/173

摘要： An "ironless" bearing spindle motor for rotating at least one disc about a central axis in a data storage device comprises a housing, a stationary member, a hub, and a stator. A rotor magnet is attached to the hub. A bearing interconnects the hub with the stationary member such that the hub and rotor magnet are rotatable about the central axis. The stator is coaxial with the hub and includes an ironless stator winding. The ironless stator winding minimizes low-harmonic acoustic vibration peaks in the spindle motor, resulting in a spindle motor having a very quiet operation.

摘要翻译： 用于在数据存储装置中围绕中心轴旋转至少一个盘的“无铁”轴承主轴电机包括壳体，固定构件，轮毂和定子。 转子磁体连接到轮毂。 轴承将轮毂与固定构件互连，使得轮毂和转子磁体可围绕中心轴线旋转。 定子与轮毂同轴并且包括无铁定子绕组。 无铁定子绕组使主轴电机中的低谐波声振峰值最小化，导致主轴电机具有非常安静的操作。

公开(公告)号：US5536020A

公开(公告)日：1996-07-16

申请号：US336504

申请日：1994-11-09

申请人： Hiroshi Matsumoto ,  Misako Hayashi

发明人： Hiroshi Matsumoto ,  Misako Hayashi

IPC分类号： H02K5/124 ,  H02K5/173 ,  H02K21/22 ,  F16J15/53

CPC分类号： H02K5/124 ,  H02K1/30 ,  H02K1/32 ,  H02K21/22 ,  H02K5/1737 ,  H02K7/088 ,  H02K5/173 ,  Y10S277/935

摘要： A spindle motor comprising a stationary member, a hub rotatably supported on the stationary member via a pair of bearing members, and a magnetic fluid seal disposed outwardly of at least one of the pair of bearing members. A conduit hole is provided to conduct between an annular space stipulated by the stationary member, the magnetic fluid seal, the rotor and the other of the bearing member and the inside of the motor. Furthermore, a magnetic fluid holder means in the magnetic fluid seal is improved.

摘要翻译： 一种主轴电动机，包括固定构件，经由一对轴承构件可旋转地支撑在固定构件上的轮毂，以及设置在所述一对轴承构件中的至少一个的外侧的磁性流体密封件。 设置有导管孔，用于在由固定构件，磁性流体密封件，转子和轴承构件中的另一个和电机内部规定的环形空间之间进行导电。 此外，磁流体密封件中的磁性流体保持器装置得到改善。

公开(公告)号：US5394043A

公开(公告)日：1995-02-28

申请号：US84569

申请日：1993-06-29

申请人： Song-Ling Hsia

发明人： Song-Ling Hsia

IPC分类号： H02K3/44 ,  H02K5/173 ,  H02K21/14 ,  H02K29/08 ,  H02K7/08

CPC分类号： H02K21/14 ,  H02K29/08 ,  H02K3/44 ,  H02K5/173 ,  Y10S310/06

摘要： A brushless d.c. motor comprising a housing, an annular stator coil structure with the housing, a rotor concentric with the stator and comprising a body having an output shaft portion extending from one end thereof toward the forward end of the housing for connection to a mechanical load for driving the same and a permanent magnet arrangement on the periphery of the rotor body operatively associated with the stator coil structure, a first bearing near the forward end of the housing for rotatably supporting the shaft portion of the rotor and wherein there is provided a second bearing axially inwardly of the rear end of the rotor for rotatably supporting that end of the rotor and a circuit board located between the rear end of the rotor and the rear end of the housing. By virtue of the location of the second bearing a rigid and vibration free structure is provided for operation of the motor at high speed. By virtue of the location of the second bearing and the circuit board potting material can encapsulate the stator coil structure and circuit board thereby completely sealing all electrical sections of the motor so that they can withstand autoclave sterilization conditions. A fluid passage arrangement equalizes pressure applied to the first and second bearings so that they can withstand autoclave sterilization conditions.

摘要翻译： 无刷直流 电动机，包括壳体，具有壳体的环形定子线圈结构，与定子同心的转子，包括具有从其一端向壳体的前端延伸的输出轴部分的主体，用于连接到用于驱动 相同的永磁体设置在与定子线圈结构可操作地相关联的转子体的周边上，靠近壳体前端的第一轴承，用于可旋转地支撑转子的轴部分，并且其中设置有轴向向内的第二轴承 转子的后端可旋转地支撑转子的这一端，以及位于转子的后端和壳体的后端之间的电路板。 通过第二轴承的位置，提供刚性和无振动的结构用于高速运转电动机。 由于第二轴承的位置和电路板灌封材料可以封装定子线圈结构和电路板，从而完全密封电机的所有电气部分，从而可以承受高压灭菌器的灭菌条件。 流体通道布置使施加到第一和第二轴承的压力平衡，使得它们能够经受高压灭菌条件。

公开(公告)号：US5274288A

公开(公告)日：1993-12-28

申请号：US531855

申请日：1990-06-01

申请人： Frederick Mark Stefansky

发明人： Frederick Mark Stefansky

IPC分类号： G11B19/20 ,  G11B33/12 ,  H02K5/173 ,  H02K5/24 ,  H02K7/16 ,  H02K5/16 ,  H02K7/08

CPC分类号： G11B19/2009 ,  H02K5/173

摘要： A low noise spin motor for use in a disk drive includes two bearings having different inside diameters, different outside diameters, and preferably the same size balls. The balls in the larger bearing travel at a faster speed thereby increasing the noise frequencies and resonant frequency as compared to the smaller frequency whereby the noise from the two bearings is not compounded. A small and compact disk drive using the spin motor is described.

摘要翻译： 用于磁盘驱动器的低噪声旋转电机包括具有不同内径，不同外径，优选相同尺寸球的两个轴承。 较大的轴承中的球以更快的速度行进，从而与较小的频率相比增加了噪声频率和谐振频率，从而来自两个轴承的噪声不复合。 描述了使用旋转马达的小而紧凑的磁盘驱动器。

公开(公告)号：US4638201A

公开(公告)日：1987-01-20

申请号：US834674

申请日：1986-02-28

申请人： Josef Feigel

发明人： Josef Feigel

IPC分类号： H02K1/12 ,  H02K5/173 ,  H02K29/00 ,  H02K1/00

CPC分类号： H02K5/173 ,  Y10S310/06

摘要： An electronically commutated dc motor having a dome-shaped external rotor and a stator having a double-T-shaped design with the stator consisting of one yoke stack disposed asymmetrically in relation to the longitudinal stator axis and of two pole stacks of which each is provided with an extension on the same side in the longitudinal direction. In the circumferential direction the extensions are provided with lugs.

摘要翻译： 具有圆顶形外部转子和具有双T形设计的定子的电子换向直流电动机，其中定子由相对于纵向定子轴线不对称地设置的一个轭架组成，并且每个轭架均设置有两个极堆 在纵向的同一侧具有延伸部。 在圆周方向上，延伸部设有凸耳。

公开(公告)号：US1846903A

公开(公告)日：1932-02-23

申请号：US26816128

申请日：1928-04-07

申请人： PONTUS OSTENBERG

发明人： PONTUS OSTENBERG

IPC分类号： H02K5/167 ,  H02K5/173

CPC分类号： H02K5/173 ,  H02K5/1677

公开(公告)号：US12081095B2

公开(公告)日：2024-09-03

申请号：US17489333

申请日：2021-09-29

申请人： DENSO CORPORATION

发明人： Yuki Takahashi

IPC分类号： H02K5/173 ,  H02K5/20 ,  H02K7/08 ,  H02K11/30

CPC分类号： H02K5/173 ,  H02K5/20 ,  H02K7/08 ,  H02K11/30

摘要： The rotating electric machine is provided with an inner ring fixed to a rotating shaft, an outer ring fixed to a base portion having a diameter larger than that of the inner ring, and a bearing that supports the rotating shaft. The base portion is provided with an insertion hole formed larger than the outer diameter of the outer ring, and the insertion hole accepting the rotating shaft penetrating therethrough. The outer ring is provided with an outer ring side flange portion protruding radially outside and being engaged with the base portion in the axial direction and fixed thereto. The outer ring side flange portion is provided in plural number in a circumferential direction at predetermined intervals. In the insertion hole, groove portions recessed radially outside at predetermined intervals in the circumferential direction is provided to fit with a shape of the outer ring side flange portion.

公开(公告)号：US20240162771A1

公开(公告)日：2024-05-16

申请号：US18284570

申请日：2022-04-07

申请人： Schaeffler Technologies AG & Co. KG

发明人： Stefan Glueck

IPC分类号： H02K1/2796 ,  H02K1/18 ,  H02K5/173 ,  H02K16/04

CPC分类号： H02K1/2796 ,  H02K1/182 ,  H02K5/173 ,  H02K16/04 ,  H02K2211/03

摘要： An electric axial flux machine including a stator and a rotor. The rotor includes a rotor shaft in the form of a hollow shaft and at least one first disk-shaped rotor member which is non-slidably arranged on the rotor shaft for conjoint rotation therewith. The stator includes a first annular disk-shaped stator member and a second annular disk-shaped stator member which are arranged coaxially to one another and coaxially to the rotor shaft and are axially spaced apart from one another, the rotor being arranged in the space therebetween. A first air gap is formed in the axial direction between the first annular disk-shaped stator member and the rotor, and a second air gap is formed between the second annular disk-shaped stator member and the rotor. The rotor has a plurality of reception slots which are equidistantly distributed over the circumference and extend radially through the rotor member and in each of which a rotor magnet is secured. The axial flux machine further includes a cylindrical ring-shaped motor casing which encloses the first annular disk-shaped stator member, the rotor and the second annular disk-shaped stator member in the axial direction, the cylindrical ring-shaped motor casing having a plurality of openings in its lateral surface, said openings being distributed over the circumference.

公开(公告)号：US20240063683A1

公开(公告)日：2024-02-22

申请号：US18259531

申请日：2021-12-30

申请人： VALEO KAPEC CO., LTD.

发明人： Jung-Woo KIM

IPC分类号： H02K5/173 ,  B60K6/26 ,  B60K6/405 ,  H02K7/08 ,  F16C19/06

CPC分类号： H02K5/173 ,  B60K6/26 ,  B60K6/405 ,  H02K7/08 ,  F16C19/06 ,  B60Y2200/92 ,  B60Y2400/60 ,  F16C2380/26

摘要： A hybrid driving module includes a housing and an axial movement prevention part configured to restrict forward and rearward movements of a rotor hub relative to the housing. The axial movement prevention part provided in a bearing interposed between the housing and the rotor hub. The bearing includes a first race configured to adjoin a first peripheral surface, a second race configured to adjoin a second peripheral surface, and rolling elements interposed between the first race and the second race. The axial movement prevention part includes a bearing groove provided in a surface of the first race, a circumferential surface groove provided in a first circumferential surface, and a clearance prevention ring inserted across the circumferential surface groove and the bearing groove. A height of the clearance prevention ring is equal to or smaller than a depth of the circumferential surface groove.