公开(公告)号：US5554900A

公开(公告)日：1996-09-10

申请号：US191957

申请日：1994-02-04

Applicant: Stephen L. Pop, Sr.

Inventor： Stephen L. Pop, Sr.

IPC: H02K1/27 ,  H02K5/173 ,  H02K5/22 ,  H02K7/04 ,  H02K7/20 ,  H02K15/03 ,  H02K21/14 ,  H02K21/12

CPC classification number: H02K1/2773 ,  H02K15/03 ,  H02K21/14 ,  H02K2201/06 ,  H02K5/173 ,  H02K5/225 ,  H02K7/04 ,  H02K7/20 ,  Y10T29/49012

Abstract: An electric motor including a permanent-magnet rotor having embedded magnets held in place by several segments. The embedded magnets are secured by segments including non-circular openings near their centers. Several non-magnetic, non-conductive bars extend through the non-circular openings of the segments to secure the segments in relation to the shaft. The motor is capable of producing high torque while only requiring a minimum amount of space.

Abstract translation: 一种电动机，其包括永磁转子，其具有通过若干段保持在适当位置的嵌入式磁体。 嵌入式磁体通过其中心附近的非圆形开口的片段固定。 几个非磁性非导电棒延伸穿过段的非圆形开口，以将段相对于轴固定。 电机能够产生高扭矩，而只需要最小的空间。

公开(公告)号：US5506458A

公开(公告)日：1996-04-09

申请号：US206596

申请日：1994-03-04

Applicant: Louis G. Pace ,  Thomas A. Tacklind

Inventor： Louis G. Pace ,  Thomas A. Tacklind

IPC: G11B19/20 ,  H02K1/14 ,  H02K21/22 ,  H02K29/03 ,  H02K7/14 ,  H02K1/12 ,  H02K17/08

CPC classification number: H02K29/03 ,  G11B19/2009 ,  H02K1/145 ,  H02K21/227 ,  H02K2201/06 ,  H02K2201/12

Abstract: A low cost, polyphase spindle motor for a hard disk drive comprises a base, a cup-shaped rotating hub for mounting at least one rotating data storage disk, a bearing assembly mounted between the base and the hub enabling rotation of the hub relative to the base, and a cylindrical permanent magnet mounted to an inside cylindrical wall of the hub and defining a plurality of circumferentially alternating magnetic poles. A single ferromagnetic sleeve is mounted to the base and forms one element of the bearing assembly. The sleeve defines a plurality of generally U-shaped stator armature assemblies fixed with respect to the base, each stator armature assembly comprising a top stator disk of ferromagnetic material, a bottom stator disk of ferromagnetic material and a cylindrical portion of the ferromagnetic sleeve magnetically coupling the top disk portion and the bottom disk portion, the stator armature further including a coil between the top stator disk and the bottom stator disk, each stator disk defining a plurality of circumferentially spaced apart stator pole ends being in number related to the number of poles of the permanent magnet, the pole ends of the bottom stator disk being angularly displaced from the pole ends of the top stator disk by a predetermined first electrical angle, the pole ends of the stator disks of each of the plurality of armature assemblies being electrically angularly displaced from the pole ends of at least one of the stator disks of the other of the plurality of armature assemblies by a predetermined second electrical angle.

Abstract translation: 用于硬盘驱动器的低成本多相主轴电机包括基座，用于安装至少一个旋转数据存储盘的杯形旋转毂，安装在基座和毂之间的轴承组件，其使得毂相对于 基座和安装到毂的内圆柱形壁中并限定多个周向交变磁极的圆柱形永磁体。 单个铁磁套筒安装到基座并形成轴承组件的一个元件。 套管限定了相对于基座固定的多个大致U形的定子电枢组件，每个定子电枢组件包括铁磁材料的顶部定子盘，铁磁材料的底部定子盘和铁磁套筒的磁性耦合的圆柱形部分 顶部磁盘部分和底部磁盘部分，定子电枢还包括位于顶部定子盘和底部定子盘之间的线圈，每个定子盘限定多个周向间隔开的定子极端，数量与极数相关 的永久磁铁，底部定子盘的极端部从顶部定子盘的极端角度地移位预定的第一电角度，多个电枢组件中的每一个的定子盘的极端电角度地 从多个臂的另一个的至少一个定子盘的极端偏移 e组件以预定的第二电角度。

公开(公告)号：US5323077A

公开(公告)日：1994-06-21

申请号：US971431

申请日：1992-11-04

Applicant: Jurgen Brandes

Inventor： Jurgen Brandes

IPC: H02K1/27 ,  H02K21/14 ,  H02K23/04 ,  H02K21/12

CPC classification number: H02K1/278 ,  H02K21/14 ,  H02K2201/06

Abstract: The present invention relates to an electrical machine having a permanent-magnet-excited rotor. On the perimeter of the rotor, several plate-like or lamellar permanent magnets are arranged for each rotor pole directly at the air gap adjacent to the stator of the machine. Combinations of stator-slotting harmonic fields and harmonic fields based on the division of the magnets that lead to oscillating torques. These oscillating torques are largely suppressed by having the total number of permanent magnets configured on the rotor correspond to a prime number greater than three.

Abstract translation: 本发明涉及一种具有永磁激励转子的电机。 在转子的周边上，为每个转子极直接设置在与机器的定子相邻的气隙处的几个板状或层状永磁体。 基于导致振荡转矩的磁体划分，定子开槽谐波场和谐波场的组合。 通过使转子上配置的永久磁铁的总数对应于大于3的素数，来大大抑制这些摆动转矩。

公开(公告)号：US5255425A

公开(公告)日：1993-10-26

申请号：US953874

申请日：1992-09-30

Applicant: Kazunobu Kanno

Inventor： Kazunobu Kanno

IPC: H02K1/24 ,  H02K15/02

CPC classification number: H02K15/024 ,  H02K2201/06 ,  Y10T29/49009 ,  Y10T29/49078

Abstract: A method of manufacturing a laminated core for a dynamo-electric machine, having a shaft and a plurality of core sheets with through holes in the center thereof for inserting the shaft therethrough and a plurality of slot holes in the peripheral portion thereof. In the same method, there is provided a construction in which the core sheet is punched so that at least a part of scrap sections to be punched and then removed, including the through hole and the slot holes, is formed as a half die-cut portion, the half die-cut portion formed on the core sheet being fitted to another adjacent core sheet. After the plurality of core sheets are laminated together, the shaft is forced through the through holes and at the same time the half die-cut portions are removed. Therefore, an integration of core sheets is obtained after die-cutting, thereby resulting in easier handling. Further, since the resulting laminated core does not have any joint portion between each of the core sheets, eddy current is reduced and rotation efficiency is improved.

Abstract translation: 一种制造用于发电机的层叠铁芯的方法，其具有轴和多个芯板，其中心具有用于插入轴的通孔，以及在其周边部分中的多个槽孔。 在同样的方法中，提供了一种构造，其中冲压芯片，使得至少一部分待冲切，然后移除的废料部分，包括通孔和槽孔，形成为半冲切 形成在芯片上的半模切部分与另一个相邻的芯片相配合。 在将多个芯片层叠在一起之后，轴被迫通过通孔，同时半模切部分被移除。 因此，在切割之后获得芯片的一体化，从而更容易处理。 此外，由于所得到的层叠铁芯在每个芯片之间不具有任何接合部分，所以涡流减小，旋转效率提高。

公开(公告)号：US5233248A

公开(公告)日：1993-08-03

申请号：US885690

申请日：1992-05-19

Applicant: Mitsuhiro Kawamura ,  Wataru Bitoh ,  Akira Yamada ,  Syo Imayoshi

Inventor： Mitsuhiro Kawamura ,  Wataru Bitoh ,  Akira Yamada ,  Syo Imayoshi

IPC: H02K1/00 ,  H02K1/18 ,  H02K1/27 ,  H02K3/32 ,  H02K3/487 ,  H02K5/128 ,  H02K5/132 ,  H02K5/136 ,  H02K9/22 ,  H02K21/14

CPC classification number: H02K1/278 ,  H02K1/185 ,  H02K3/32 ,  H02K3/487 ,  H02K5/128 ,  H02K5/136 ,  H02K9/22 ,  H02K2201/06

Abstract: A heat resistant and explosion-proof permanent magnetic synchronous motor having a stator which includes an armature iron core made by piling up steel plates with surface covered with a mineral insulation material and disposed on an inner peripheral surface of a pressure case, an armature coil made by winding a wire covered with a mineral insulation material around a slot of the armature iron core, a can hermetically sealing the armature iron core, a back-up sleeve supporting the can at a portion where the armature iron core is not provided, and a slot piece of a mineral insulation material supporting the can at an opening portion of the slot. The motor also includes a rotor including a magnetic yoke connected to an outer peripheral surface of an actuating shaft provided to penetrate the pressure case and rotatably supported thereon, a plurality of rotor magnetic poles disposed on an outer peripheral surface of the magnetic yoke, and a non-metallic case covering an outer peripheral surface of the rotor magnetic pole.

公开(公告)号：US5122705A

公开(公告)日：1992-06-16

申请号：US689343

申请日：1991-04-24

Applicant: Sin Kusase ,  Keiichiro Banzai ,  Seiji Hayashi

Inventor： Sin Kusase ,  Keiichiro Banzai ,  Seiji Hayashi

IPC: H02K3/28 ,  H02K19/22 ,  H02K19/34

CPC classification number: H02K19/34 ,  H02K19/22 ,  H02K3/28 ,  H02K2201/06

Abstract: There is provided an alternating current generator comprising: a rotatably supported field rotor having a pair of opposed rotor pole cores, each being provided with P/2 claw poles wherein P is an even number, and a field winding wound on the rotor pole cores; an armature core located around the outer periphery of the field rotor and having axially extending 3nP slots wherein n is an integer more than one; n independent sets of three-phase windings, each being wound on the armature core by being inserted in the slots so that the n sets of three-phase windings are shifted from each other by electrical angle of .pi./(3n) radians; and three-phase rectifiers connected with the n sets of three-phase windings to rectify output voltages generated by the three-phase windings.

公开(公告)号：US5086245A

公开(公告)日：1992-02-04

申请号：US487903

申请日：1990-03-06

Applicant: Alan E. Sieja ,  Erland Persson

Inventor： Alan E. Sieja ,  Erland Persson

IPC: H02K1/16

CPC classification number: H02K1/165 ,  H02K2201/06

Abstract: A stator lamination allows the construction of a d.c. motor having minimum cogging torque and maximum horsepower. Each stator lamination comprises a ring of ferromagnetic material having a number of (e.g., eight) inwardly-extending integral teeth. Each tooth has a radially-inwardmost surface with side end terminations, the side end terminations of adjacent teeth being spaced from each other to define a first set of slots. A V-shaped radially-outwardly extending slot is formed in each of the radially-inwardmost surfaces between the side end terminations, to define a second set of slots (if eight teeth are provided, a total of sixteen slots are provided). The teeth have thin stems which may be wrapped with a large amount of copper wire material. The laminations are disposed in a concentric stack with each lamination skewed with respect to an adjacent lamination.

Abstract translation: 定子层压允许建立直流 电机具有最小的齿槽转矩和最大的马力。 每个定子叠片包括具有多个（例如八个）向内延伸的整体齿的铁磁材料环。 每个齿具有具有侧端终端的径向向内的表面，相邻齿的侧端终端彼此间隔开以限定第一组狭槽。 在侧端终端之间的每个径向向内的最表面中形成V形的径向向外延伸的狭槽，以限定第二组狭槽（如果提供八个齿，则总共提供十六个槽）。 齿具有细的茎，可以用大量的铜线材料包裹。 叠片以同心的堆叠布置，每个叠片相对于相邻的叠片倾斜。

公开(公告)号：US4951377A

公开(公告)日：1990-08-28

申请号：US389810

申请日：1989-08-04

Applicant: Harold L. Fritzsche

Inventor： Harold L. Fritzsche

IPC: H02K1/16 ,  H02K15/02

CPC classification number: H02K1/16 ,  H02K15/026 ,  H02K2201/06 ,  Y10T29/49009 ,  Y10T29/49078

Abstract: A method for predeterminately sizing a core using a pair of generally opposed die means operable for compressing only an outer circumferential section of the core defined generally axially between a pair of opposite end faces of the core at least generally adjacent an outer circumferential surface thereof, respectively. A pair of sizing means are operable for disposition in confronting and predetermined radially spaced apart relation with the outer circumferential surface and a plurality of tooth tip rows defining an inner circumferential surface of the core between the opposite end faces thereof, and the outer circumferential surface and the tooth tip rows of the core are displaced generally radially inwardly thereof into sizing engagement with the sizing means thereby to effect the predetermined sizing of the inner and outer circumferential surfaces of the core in response to the compressing of only the outer circumferential section of the core by the opposed die means, respectively.

Abstract translation: 一种用于使用一对大体上相对的模具装置来预先确定尺寸的方法，所述模具装置可操作以仅分别压缩至少大致相邻于其外圆周表面的芯的一对相对端面之间的大致轴向的芯的外周部分 。 一对施胶装置可操作用于与外圆周表面相对地和预定的径向间隔开的关系，以及多个齿顶列，其在相对端面之间限定芯的内圆周表面， 芯的齿尖行通常径向向内移动，以与施胶装置进行尺寸接合，从而响应于仅压缩芯的外圆周部分而实现芯的内圆周表面和外圆周表面的预定尺寸 通过相对的模具装置。

公开(公告)号：US4912833A

公开(公告)日：1990-04-03

申请号：US264523

申请日：1988-10-31

Applicant: Harold L. Fritzsche

Inventor： Harold L. Fritzsche

IPC: H02K1/16 ,  H02K15/02

CPC classification number: H02K15/026 ,  H02K1/16 ,  H02K2201/06 ,  Y10T29/49009 ,  Y10T29/49071

Abstract: A method for forming an edgewise wound core from a lanced strip of generally thin ferromagnetic material. The lanced strip includes a pair of sets of segments extending generally lengthwise thereof with the segments of one of the segment sets being integrally interposed between the segments of the other of the segment sets, and a set of salient pole teeth are integral with the segments of the one segment set extending generally laterally therefrom. In practicing this method, successive segments of the other segment set are successively and independently edgewise constrained, and the salient pole teeth and segments of the one segment set are unconstrained. Only the edgewise constrained segments of the other segment set are edgewise deformed, and the unconstrained salient pole teeth and segments of the one segment set are maintained in their original lanced configurations.A method of operating apparatus for continuously forming edgewise wound cores is also disclosed.

Abstract translation: 一种用于从通常薄的铁磁材料的拉丝条形成沿边卷绕芯的方法。 该拉丝带包括一对大体纵向延伸的段，其中一个段组的段整体插入在另一个段组的段之间，一组凸极齿与 所述一个区段集合从其大致横向延伸。 在实施该方法时，其他段组的连续段被顺序地和独立地沿边约束，并且一个段集合的凸极齿和段是无约束的。 只有另一个段组的边缘约束段被沿边变形，并且一个段集合中的无约束凸极齿和段被保持在其原始的水平配置中。 还公开了一种用于连续地形成沿边卷绕芯的操作装置的方法。

公开(公告)号：US4912350A

公开(公告)日：1990-03-27

申请号：US296344

申请日：1989-01-09

Applicant: Millis V. Parshall ,  Allen J. Zaitz

Inventor： Millis V. Parshall ,  Allen J. Zaitz

IPC: H02K1/16 ,  H02K1/18 ,  H02K1/20

CPC classification number: H02K1/16 ,  H02K1/185 ,  H02K1/20 ,  H02K2201/06

Abstract: An A.C. alternator includes laminated stator core with an tubular frame formed from a plate member which is wrapped tightly about the core and with the opposed end edges of the frame plate welded to the core. The stator laminations having a square perimeter with the corners rounded with a radius of the final core diameter. The corner portion are further provided with a control welding notch and a plurality of circumferentially distributed openings. The laminations are stacked in rotated relation to form the core with a true constant diameter. Each lamination is rotated in the same direction of rotation for 120 degrees relative to the adjacent laminations. The multiple openings in the corner portions are constructed and arranged such that the rotating laminations aligned the similar openings and define a plurality of unobstructed axial cooling passages. The laminations are rotated to establish skewed elongated slots, central notches and air flow openings. At least one of the corners is especially formed with two offset portions with a rigid bar welded to the inner recess and defines a frame connection surface. A weld bar is secured to the inner bar and outer recess in axial alignment with the core axis. The frame plate is wrapped with the seam aligned with the weld bar and the frame welded in place.

Abstract translation: 交流发电机包括层压定子铁芯，其具有由板构件形成的管状框架，该板构件围绕铁芯紧密地包裹，并且框架板的相对的端部边缘焊接到铁芯上。 定子叠片具有方形周边，角部以最终芯直径的半径圆化。 角部还设置有控制焊接切口和多个周向分布的开口。 叠片以旋转关系堆叠以形成具有真实恒定直径的芯。 每个层压体在相同的旋转方向上相对于相邻的叠片旋转120度。 角部中的多个开口被构造和布置成使得旋转的叠片对齐类似的开口并限定多个无障碍的轴向冷却通道。 旋转叠片以建立倾斜的细长槽，中心槽口和气流开口。 角部中的至少一个特别地形成有两个偏移部分，其中刚性杆焊接到内部凹部并且限定框架连接表面。 焊条与芯轴轴向对准固定在内杆和外凹槽上。 框架板被焊缝对准，焊缝与焊接条对准，框架焊接就位。