辅助磁极式直线振荡电动机特性研究  

Study on the Characteristics of Linear Oscillating Motor with Side Magnets

作　　者：邓伟峰[1] 熊超[1] 吴亦农[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083

出　　处：《微特电机》2016年第4期5-8,共4页Small & Special Electrical Machines

摘　　要：对一台带有辅助磁极直线振荡电动机的磁钢结构和运行特性进行了理论分析。实验测得样机的轴向比推力为24.1 N/A,通过空载扫频实验验证并测量了辅助磁极的磁弹簧刚度。该样机驱动一台脉冲管制冷机,170W输入电功下,能够在90 K温区得到9.6 W制冷量,电机效率达到82.5%,为空间红外焦平面以及冷光学器件的冷却提供了较好的选择。Theoretical analysis was conducted on the structure of magnets and operating characteristic of a linear oscil-lating motor with side magnets. The specified force of the prototype motor is 24. 1 N/ A obtained by experiment. In addi-tion, the stiffness of magnetic spring was validated and measured at a series of frequencies under no load. The net coolingpower of 9. 6 W at 90 K with input electric power of 170 W is achieved in a pulse tube cooler driven by this prototype mo-tor. The motor efficiency reaches above 82. 5%. Finally, it＇s an alternative in the cooling for space-borne infrared focalplane and cold optic devices.

关 键 词：辅助磁极 直线振荡电动机 比推力 磁弹簧刚度 脉冲管制冷机 

分 类 号：TM359.4[电气工程—电机]