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    Electric motor
    1.
    发明授权
    Electric motor 失效
    电动马达

    公开(公告)号：US4049984A

    公开(公告)日：1977-09-20

    申请号：US686075

    申请日：1976-05-13

    申请人： Hirohisa Ishii ,  Masami Shishikura

    发明人： Hirohisa Ishii ,  Masami Shishikura

    IPC分类号： H02K23/04 ,  G01P3/488 ,  H02K7/20 ,  H02K23/44 ,  H02K23/66 ,  H02K15/00

    CPC分类号： H02K23/44 ,  G01P3/488 ,  H02K7/20

    摘要： In order to facilitate the automated assembly of an electric motor, all of the major components and sub-assemblies thereof are successively brought together in one axial direction. Such major components of the motor include a first cylindrical case, preferably of aluminum, having an end wall at only one end so as to slidably receive, through its other open end, a second magnetic cylindrical case which is relatively shorter than the first case and which opens in the same axial direction for receiving and housing a cylindrical magnet, a rotor assembly insertable through the open end of the second case and including a shaft with a rotor and commutator thereon, a brush base insertable in the open end of the first case so as to bear against the open end edge of the second case and carrying brushes at one side to engage the commutator and a frequency generator at its other side, and a lid member carrying a central thrust bearing for engagement by the respective end of the shaft when the lid member is engaged with the open end of the first case for closing the latter and for bearing against the frequency generator.

    摘要翻译： 为了便于电动机的自动组装，其主要部件和子组件的所有主要部件和子组件在一个轴向方向上连续地组合在一起。 电动机的这种主要部件包括优选为铝的第一圆柱形壳体，其具有仅在一端的端壁，以便通过其另一开口端可滑动地容纳第二磁性圆筒形壳体，该第二磁性圆筒形壳体比第一壳体相对更短;以及 其在相同的轴向方向上开放以用于容纳和容纳圆柱形磁体;转子组件，可通过第二壳体的开口端插入并且包括具有转子和转子的轴，可插入第一壳体的开口端的电刷基座 以便抵靠第二壳体的开口端边缘并且在一侧承载电刷以接合换向器和另一侧的频率发生器，以及承载中心止推轴承的盖构件，用于通过轴的相应端部接合 当盖构件与第一壳体的开口端接合以关闭第一壳体并且用于抵靠频率发生器时。

    DC Brushless motor
    2.
    发明授权
    DC Brushless motor 失效
    直流无刷电机

    公开(公告)号：US4417167A

    公开(公告)日：1983-11-22

    申请号：US329887

    申请日：1981-12-11

    申请人： Hirohisa Ishii ,  Masami Shishikura ,  Toshihiko Okamura

    发明人： Hirohisa Ishii ,  Masami Shishikura ,  Toshihiko Okamura

    IPC分类号： H02K1/27 ,  H02K7/04 ,  H02K29/00 ,  H02K7/00

    CPC分类号： H02K7/04 ,  H02K1/2786

    摘要： In a DC brushless motor including a rotor assembly having permanent magnets and a stator assembly having coils arranged in the magnetic field generated by the permanent magnets of the rotor assembly, with the energization of the coils being controlled so as to impart a rotational torque to the rotor assembly; the permanent magnets of the rotor assembly are flat and are attached to a rotor yoke, which can be constructed as an octagonal prism, to provide a path for the magnetic flux emanating from the magnets and to support the flat magnets so that the latter form substantially a regular polygon in cross section. The magnets can be arranged with their poles in a north-south-north-south sequence against flat side walls of the rotor yoke to provide a flux density pattern that is substantially sinusoidal. Alternatively, the flat magnets can be arranged so that magnets of like polarization are disposed on either side of selected corners of a polygonal rotor yoke, thereby providing a flux density pattern that is substantially trapezoidal or rectangular.

    摘要翻译： 在包括具有永磁体的转子组件和定子组件的直流无刷电动机中，具有排列在由转子组件的永磁体产生的磁场中的线圈的定子组件中，线圈的通电被控制以便向 转子总成; 转子组件的永磁体是平坦的并且附接到可以被构造为八边形棱镜的转子磁轭，以提供用于从磁体发出的磁通的路径并且支撑扁平磁体，使得后者基本上形成 横截面中的正多边形。 磁体可以以其南极 - 南北向序列的极点排列，抵靠转子磁轭的平坦侧壁，以提供基本上为正弦曲线的磁通密度模式。 或者，扁平磁体可以布置成使得具有相似极化的磁体设置在多边形转子磁轭的选定角的两侧，从而提供基本上梯形或矩形的磁通密度图案。