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2. 发明授权

US4234808A Stepping motor 失效
标题翻译：步进电机
公开(公告)号：US4234808A
公开(公告)日：1980-11-18
申请号：US830124
申请日：1977-09-02
申请人： Klaus Geppert , Gunter Heine , Karl Hubner , Gunter Ose , Bernd Seeger , Claus Schaffer , August Spiesberger
发明人： Klaus Geppert , Gunter Heine , Karl Hubner , Gunter Ose , Bernd Seeger , Claus Schaffer , August Spiesberger
IPC分类号： H02K37/04 , H02K37/18 , H02K37/00
CPC分类号： H02K37/18
摘要： A stepping motor of the homopolar design with a step angle of 3.6.degree. and having a generally cubic form is disclosed. The motor includes a generally square, single-section laminated stator which has only four stator poles extending radially inwardly from the middle regions of the straight sides, and a concentric rotor secured to a shaft journaled in a pair of bearing bells fixed to the stator at the opposite faces thereof and having the same generally square configuration. The rotor includes a disc-shaped permanent magnet of high remanent energy density (B.times.H).sub.max .gtoreq.10.times.10.sup.6 GOe, and a pair of annular steel rotor elements provided at the working air gap with identical numbers Z.sub.r of rotor teeth of pitch .tau..sub.r =360.degree./Z.sub.r. Each stator pole is provided at the working air gap with four or five stator pole teeth of pitch .tau..sub.s =360.degree./Z.sub.s, where Z.sub.s is the theoretically maximum available number of stator pole teeth and must be evenly divisible by 4, and Z.sub.s =Z.sub.r -1.+-.k where k is an even integer and 0.ltoreq.k.ltoreq.6. A special twin-section insulation member adapted to be axially fitted into the stator from the opposite faces thereof and designed to permit simultaneous machine winding of the field windings onto the respective stator poles is also disclosed. This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.
摘要翻译：公开了具有3.6°的阶梯角并且具有大致立方体形状的单极设计的步进电动机。电动机包括大致正方形的单段层压定子，其仅具有从直边的中间区域径向向内延伸的四个定子极，以及固定到轴上的同心转子，所述同轴转子固定在固定到定子上的一对轴承座中其相对面并具有相同的大致正方形的构造。转子包括高剩余能量密度（BxH）max> / = 10×10 6 GOe的圆盘形永磁体和设置在工作气隙处的一对环形钢转子元件，具有相同数量的转子齿的转子齿数τr = 360°/ Zr。每个定子极在工作气隙处设有四个或五个节距τs = 360°/ Zs的定子极齿，其中Zs是理论上最大可用数量的定子极齿，并且必须可以被4等分除，Zs = Zr-1 +/- k，其中k是偶数整数，0

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