中国电机工程学报2012，Vol.32Issue(27)：73-78,6.
电子膨胀阀用爪极步进电机数值优化研究
Numerical Study on Claw-pole Electric Motors for Electronic Expansion Valves
吴俊云 1方亮 1裘慧祥2
作者信息
- 1. 上海理工大学能源与动力工程学院,上海市杨浦区200093
- 2. 上海源泉电气科技有限公司,上海市闵行区201108
- 折叠
摘要
Abstract
An electronic expansion valve (EEV), as a precise throttling valve for air-conditioning systems, is conducive to the increase of the energy efficiency ratio (EER) and the improvement of the thermal comfort of the air-conditioned room. Research on the claw-pole permanent-magnet (PM) stepping motor, which is the key part of the EEV, can improve the stability and reliability. The torque characteristics of the PM stepping motors for EEV were analyzed with the finite element method. When the rotor, the electric current and the air-gap between the rotor and the stator of the PM motor are constant, the holding torque and the static torque of PM motors were computed with the changes of the trapezoidal claw-pole parameters. It is better to keep the holding torque of the PM stepping motor bigger, provided that the demand of static torque is met, and the PM motor's claw-pole is optimally analyzed on this basis. The reasonable claw frame and its dimension can optimize the holding torque and the detent torque of PM motors. This study may have some reference value to the research and design of the electronic expansion valve stepper motor.关键词
电子膨胀阀/爪极永磁步进电机/爪极结构/力矩特性/数值优化Key words
electronic expansion valve (EEV)/ claw-pole permanent-magnet stepping motor/ claw-pole frame/torque characteristic/ numerical optimizing分类
信息技术与安全科学引用本文复制引用
吴俊云,方亮,裘慧祥..电子膨胀阀用爪极步进电机数值优化研究[J].中国电机工程学报,2012,32(27):73-78,6.
