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    Laminated stack manufacture
    251.
    发明授权
    Laminated stack manufacture 失效
    叠层堆垛制造

    公开(公告)号：US4272579A

    公开(公告)日：1981-06-09

    申请号：US917942

    申请日：1978-06-22

    Applicant: Yoshiaki Mitsui

    Inventor： Yoshiaki Mitsui

    IPC: H02K1/26 ,  H02K15/02 ,  B32B3/24

    CPC classification number: H02K1/26 ,  H02K15/024 ,  H02K2201/06 ,  H02K2201/09 ,  Y10T29/49936 ,  Y10T428/24289

    Abstract: A die structure for use in a laminated core manufacture wherein a plurality of apertured sheets are provided with projections formed from the portion of the sheet from which the apertures are formed to define an interlocked laminated stack. The first of the sheets is provided with a through aperture with the projection being eliminated so as to define a nonprojecting surface in the first of the sheets of the stack, with the projections of each of the subsequent sheets extending into and being interlocked with the preceding sheets in the aperture thereof. The punching apparatus for providing the apertures and projections is selectively operated to define either the formed aperture and projection structure or a blanked out apertured structure. The blanked out apertured structure defines the first of the sheets of the stack. The extent of the projections from the sheets is preselected to be no greater than the thickness of the sheets so that the projection of the sheets superjacent the first lamination is received fully within the blanked out aperture thereof. The blanked out sheets may be indexed to define a skewed axis dynamoelectric structure.

    Abstract translation: 一种用于层压芯制造的模具结构，其中多个有孔板设置有由形成有所述孔的部分的所述片形成的突起，以限定互锁的层压叠层。 第一个片材设置有通孔，其中突出物被去除，以便在堆叠的第一片材​​中限定非投影表面，其中每个后续片材的突起延伸到前一个 片材的孔径。 用于提供孔和突起的冲孔装置被选择性地操作以限定所形成的孔和突出结构或消隐有孔结构。 消隐有孔结构定义了堆叠中的第一个片材。 从片材的突起的程度被预选为不大于片材的厚度，使得超过第一层压片的片材的突出部被完全接收在其消隐孔内。 消隐纸张可以被索引以定义偏斜轴电动结构。

    AC Generator with low noise claw tooth rotor
    252.
    发明授权
    AC Generator with low noise claw tooth rotor 失效
    交流发电机，低噪音爪齿转子

    公开(公告)号：US4263526A

    公开(公告)日：1981-04-21

    申请号：US27282

    申请日：1979-04-04

    Applicant: Masahiro Taguchi ,  Mitsuo Inagaki

    Inventor： Masahiro Taguchi ,  Mitsuo Inagaki

    IPC: H02K1/22 ,  H02K1/24 ,  H02K19/22

    CPC classification number: H02K1/243 ,  H02K19/22 ,  H02K2201/06

    Abstract: An AC generator for a vehicle comprises a rotor having a pair of finger magnetic poles and an armature iron core. By deviating pole pieces of the finger magnetic poles by predetermined angles relative to each of opposed tooth portions of the armature iron core, torque variation applied to each of the pole pieces during rotation is cancelled, and magnetic sound can be greatly decreased without reducing the output of the AC generator.

    Abstract translation: 用于车辆的交流发电机包括具有一对指状磁极和电枢铁芯的转子。 通过将手指磁极的极片相对于电枢铁心的相对齿部各自偏移预定的角度，消除了在旋转期间施加到每个极片的扭矩变化，并且可以大大降低磁声而不减少输出 的交流发电机。

    Method of making cast windings for electric motors
    253.
    发明授权
    Method of making cast windings for electric motors 失效
    电动马达铸造绕组的方法

    公开(公告)号：US4204314A

    公开(公告)日：1980-05-27

    申请号：US851268

    申请日：1977-11-14

    Applicant: John Workman

    Inventor： John Workman

    IPC: H02K1/26 ,  H02K3/12 ,  H02K15/00 ,  H02K15/02

    CPC classification number: H02K15/024 ,  H02K1/26 ,  H02K15/00 ,  H02K3/12 ,  H02K2201/06 ,  Y10T29/49011 ,  Y10T29/49012 ,  Y10T29/49078

    Abstract: A laminated electromagnetic core and a method of manufacturing incorporates a double layer winding with the core being formed from first and second sets of apertured laminations of which one set accommodates the conductors of one layer of the winding and the other set accommodates the conductors of the other layer of the winding the conductors being interconnected by end windings and adjacent laminations in each lamination set are displaced from mutual alignment to permit the conductor end windings to be of minimal length such that conductor ends which are to be interconnected adjoin one another, thereby facilitating the formation of end windings by in situ casting.

    Abstract translation: 层叠电磁铁芯和制造方法包括双层绕组，其中芯由第一组和第二组有孔叠层形成，其中一组容纳一层绕组的导体，另一组容纳另一组的导体 通过端部绕组互连的导体的绕组层和每个层叠组中相邻的叠片被相互对准地移位，以允许导体端部绕组具有最小的长度，使得彼此互连的导体端部彼此邻接，从而便于 通过原位铸造形成端匝。

    Method of making high efficiency induction motor with multi-cage circuit rotor
    254.
    发明授权
    Method of making high efficiency induction motor with multi-cage circuit rotor 失效
    制造具有多笼式电路转子的高效感应电动机的方法

    公开(公告)号：US4095332A

    公开(公告)日：1978-06-20

    申请号：US729429

    申请日：1976-10-04

    Applicant: Clovis E. Linkous

    Inventor： Clovis E. Linkous

    IPC: H02K17/16 ,  H02K15/00 ,  H02K17/18 ,  H02K15/12

    CPC classification number: B22D19/0054 ,  H02K15/0012 ,  H02K17/185 ,  H02K2201/06 ,  Y10S164/10 ,  Y10T29/49012

    Abstract: Fractional horsepower induction motors having a fixed number of poles (and, accordingly, a single no load synchronous speed) that are particularly adapted for multi-speed operation when driving a fan load by changing the field strength of the main winding. Induction motors of N fundamental poles have squirrel cage rotor having a plurality of interrelated conductor bars and end rings that are arranged so that multiple sets of the rotor bars establish a predetermined number of separately identifiable cage sets such that the fundamental pole structure of the stator field is coupled with the rotor and such that the third harmonic of the stator field is not coupled with the rotor. The rotor slot number and total number of separately identifiable cage sets are selected so that a cage set pattern is provided that has two-thirds of a fundamental pole pitch. In addition, the number of rotor cage end rings at one end times the number of rotor cage end rings at the other end is greater than or equal to the number of different cage types.

    Abstract translation: 具有固定极数（并且相应地，单个空载同步速度）的分数马力感应电动机，其特别适用于通过改变主绕组的场强来驱动风扇负载时的多速操作。 N个基极的感应电动机具有鼠笼式转子，其具有多个相互关联的导体条和端环，其布置成使得多组转子条构成预定数量的可单独识别的笼组，使得定子磁场的基极结构 与转子耦合，使得定子磁场的三次谐波不与转子耦合。 选择转子槽号和单独识别的笼组的总数，使得提供具有三分之二基极点的笼组图案。 此外，一端的转子笼端环的数量与另一端的转子笼端环的数量相比，大于或等于不同笼型的数量。

    Direct current motor having poles arranged to minimize cogging torque
    255.
    发明授权
    Direct current motor having poles arranged to minimize cogging torque 失效
    具有极性的直流电动机最小化加固转矩

    公开(公告)号：US3604961A

    公开(公告)日：1971-09-14

    申请号：US3604961D

    申请日：1970-02-26

    Applicant: VERNITRON CORP

    Inventor： SALDINGER NEIL

    IPC: H02K23/40 ,  H02K5/24 ,  H02K23/04

    CPC classification number: H02K23/405 ,  H02K2201/06

    Abstract: A direct current motor has a rotatable axially slotted cylindrical armature and an even number of permanent magnet poles. The poles are spaced apart 360*/N where N is the number of poles. The poles can be asymmetrically shaped so that the points of maximum field strength of each pole are spaced 360*/N + OR phi from each adjacent pole to effect cooperative cancellation of cogging torque tending to be generated between the armature and the respective adjacent poles.

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