大推程航天电连接器电磁分离机构的研究

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摘要提出一种基于整体式导磁套、梯形衔铁等结构的大推程电磁分离机构,其原理通过上述特征形成径向、环形侧向与轴向并存的磁通分布实现大行程范围内的水平推力特性。通过建立数学模型,仿真对比分析该电磁分离机构在不同行程下的磁通分布,探讨行程-力特性及其产生机理,并获得导磁套盆形凹槽角度、薄壁厚度和衔铁端面形状等结构参数对其特性的作用规律。实验结果与仿真结果基本吻合,表明该电磁分离机构原型样机0.8 A电流激励时15 mm推程内的额定推力均在63 N以上,满足大推程航天电连接器直接驱动的要求。

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	李勇
	张策
	申允德

关键词 ：电连接器, 电磁分离机构, 整体式导磁套, 梯形衔铁, 推程

Abstract：Due to requirements of direct drive and compact structure for the electric connector in aerospace engineering,an electromagnetic separable mechanism with large extending stroke based on the integral flux sleeve and the trapezoidal armature was presented.The radial,annular lateral and axial fluxes are formed and coexisted in the above feature,resulting in the horizontal thrust force characteristic within large stroke.Magnetic flux patterns of the mechanism at various strokes were compared and analyzed based on the established mathematic model,and the stroke-force characteristics and its causes were discussed.The effect of the structural parameters,e.g. the groove angle and the thin-wall thickness of the sleeve,the terminal shape of the armature,on the characteristics was obtained.The experimental results are in accordance with the simulation ones.The prototype of the proposed electromagnetic separable mechanism can obtain the rated thrust force of over 63 N within the extending stroke of 15 mm with the exciting current of 0.8 A,which meets the requirement of the direct drive for large extending stroke aerospace electric connector.

Key words： Electric connector electromagnetic separable mechanism integral flux sleeve trapezoidal armature extending stroke

收稿日期: 2014-11-24 出版日期: 2015-04-13

PACS:

TM574

基金资助:国家自然科学基金(51305305),浙江省自然科学基金(LQ13E050010)和流体动力与机电系统国家重点实验室开放基金(GZKF-201307)资助项目。

通讯作者: 李勇男,1982年生,博士,讲师,研究方向为电磁控制元件技术。

作者简介: 李勇男,1982年生,博士,讲师,研究方向为电磁控制元件技术。张策男,1981年生,硕士,工程师,研究方向为液压系统及元件设计。

引用本文:

李勇,张策,申允德. 大推程航天电连接器电磁分离机构的研究[J]. 电工技术学报, 2015, 30(5): 128-134. Li Yong,Zhang Ce,Shen Yunde. The Research on the Electromagnetic Separable Mechanism for Aerospace Electric Connector with Large Extending Stroke. Transactions of China Electrotechnical Society, 2015, 30(5): 128-134.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2015/V30/I5/128

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