Analysis and testing and improved design for enhancing the electromagnetic torque of disc-type micromotor

	Analysis and testing and improved design for enhancing the electromagnetic torque of disc-type micromotor
	Liu, B. and H. Liu
	2015
发表期刊	Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
卷号	35 期号:24 页码:6519-6526
摘要	To improve the electromagnetic torque of disc-type micromotor, the effects of torque characteristics, magnetic field distribution, and thermal convection on air-gap flux density and armature current intensity were investigated. According to the Ampere's law, the electromagnetic torque formula for the plane electronic winding in the axial flux of magnetic field was derived. Three-dimensional (3D) numerical calculation and actual measurement were carried out on the air-gap magnetic field produced by the permanent magnets, and the most important factor for increasing the magnetic flux density was found out. According to the air convection heat transfer mechanism based on thermal-fluid coupling, the temperature field distribution law was analyzed and measured, and an active cooling structure being conductive to convection was proposed. The study results show that the air-gap thickness has a significant effect on magnetic flux density, the torque constant increases 22.6% when the air-gap thickness decreases from 1.5 mm to 1.0 mm, while the magnet thickness has a saturation characteristic. Establishing the convection channel helps dissipation of Joule heat, and increases the current intensity by 52%. The designed micromotor owns good performance and high practical value. The proposed calculating and analyzing method has a high precision and the potential for popularization. 2015 Chin. Soc. for Elec. Eng.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56361
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Liu, B. and H. Liu. Analysis and testing and improved design for enhancing the electromagnetic torque of disc-type micromotor[J]. Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering,2015,35(24):6519-6526.
APA	Liu, B. and H. Liu.(2015).Analysis and testing and improved design for enhancing the electromagnetic torque of disc-type micromotor.Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering,35(24),6519-6526.
MLA	Liu, B. and H. Liu."Analysis and testing and improved design for enhancing the electromagnetic torque of disc-type micromotor".Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering 35.24(2015):6519-6526.

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文件名称/大小	文献类型	版本类型	开放类型	使用许可
提高盘式微电机电磁转矩的分析测试与改进设（890KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载