微特电机 ›› 2025, Vol. 53 ›› Issue (5): 27-30.

• 设计分析 • 上一篇    下一篇

定子大极非均匀分布混合式步进电动机研究

宁剑建1,李名扬1,李  雨1,李文俊2,周奇慧1   

  1. 1. 中国电子科技集团公司第二十一研究所,上海 200233; 2. 装备发展部军事代表局驻上海地区军事代表室,上海 200437
  • 收稿日期:2024-08-23 出版日期:2025-05-28 发布日期:2025-05-28
  • 作者简介:宁剑建( 1988—) ,男,硕士,高级工程师,研究方向为特种电机及电磁机构。

Research on the Characteristics of Non-uniform Distributed Stator Pole Hybrid Stepper Motor

NING Jianjian1, LI Mingyang1, LI Yu1, LI Wenjun2, ZHOU Qihui1#br#   

  1. 1. No. 21 Research Institute of CETC,Shanghai 200233,China; 2. Military Commission Equipment Development Department Representative Office in Shanghai Region, Shanghai 200437, China
  • Received:2024-08-23 Online:2025-05-28 Published:2025-05-28

摘要: 常规 1. 8° 混合式步进电动机定子铁心由 8 个均匀分布的大极组成,每个大极上均匀分布若干小齿。 研
究了一种特殊定子结构的混合式步进电动机,其定子通过 4 个不均匀分布的大极实现与 8 个定子极相同的步距角,
实现绕组进一步集中。 通过理论分析和静态有限元计算,得出结论,改进型结构电机在自定位力矩和保持力矩方面均
优于相同材料、相同尺寸的常规混合式步进电动机,在航空、航天等特殊应用领域实现了显著的减轻电机质量的效果。

关键词: 混合式, 自定位转矩, 保持转矩, 非均匀分布, 集中绕组

Abstract: The stator core of a conventional 1. 8° hybrid stepper motor consists of 8 evenly distributed large poles, each
with several evenly spaced small teeth. The investigated a hybrid stepper motor with a special stator structure, in which the
stator achieves the same step angle with 8 stator poles through 4 unevenly distributed large stator poles, enabling further
concentration of the winding. Through theoretical analysis and static finite element calculations, it was concluded that the
incproved structure motor outperforms the conventional structure hybrid stepper motor of the same material and size in both
self-positioning torque and holding torque, achieving a significant weight reduction effect in special application fields such
as aerospace.

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