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Stepping motor for electronic timepiece - has permanent magnetic rotor enclosed by two pairs of curved stator pole shoes

机译:电子表的步进电动机-永磁转子被两对弯曲的定子极靴包围

摘要

The stepping motor for an electronic timepiece has a stator winding, supplied with current pulses by the electronic circuit, the stator field causing rotation of a permanent magnetic rotor (1), enclosed between two facing stator pole shoes (3, 4). The rotor (1) is cylindrical and divided into six alternating segmental poles (N.S.). The stator pole shoes (3, 4) have two opposing pairs of curved edges (7a, 8a; 7b, 8b) extending around the rotor (1), with a recessed face (7, 8) between them. The length of the cuved edges of one opposing pair (7a, 8a) is double the length of the curved edges of the other pair (7b, 8b), the former extending over approx. 40 degrees and the latter over approx 20 degrees.
机译:用于电子钟表的步进电动机具有定子绕组,该定子绕组由电子电路提供电流脉冲,该定子磁场引起永磁转子(1)的旋转,该定子转子被包围在两个面对的定子极靴(3、4)之间。转子(1)是圆柱形的,分为六个交替的分段磁极(N.S.)。定子极靴(3、4)具有围绕转子(1)延伸的两对相对的弯曲边缘(7a,8a; 7b,8b),在它们之间具有凹入面(7、8)。一对相对的弧形边缘(7a,8a)的弯曲边缘的长度是另一对弧形边缘(7b,8b)的弯曲边缘的长度的两倍,前者的延伸范围大约为。 40度,后者大约20度。

著录项

  • 公开/公告号FR2373909B3

    专利类型

  • 公开/公告日1980-07-18

    原文格式PDF

  • 申请/专利权人 NILES PARTS CO LTD;

    申请/专利号FR19770034415

  • 发明设计人

    申请日1977-11-16

  • 分类号H02K37/00;G04C5/00;

  • 国家 FR

  • 入库时间 2022-08-22 17:24:21

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