线性压缩机直线电机超低振动输出特性研究  

Study of Ultra-Low Vibration Output Characteristics of Linear Motor for Linear Compressor

作　　者：蒋珍华[1,2] 项汉桢 丁磊 黄政[1] 陆志 刘少帅[1] 吴亦农[1,2] 曲晓萍[1] JIANG Zhenhua;XIANG Hanzhen;DING Lei;HUANG Zheng;LU Zhi;LIU Shaoshuai;WU Yinong;QU Xiaoping(Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China;University of Chinese Academy of Sciences,Beijing 100086,China)

机构地区：[1]中国科学院上海技术物理研究所,上海200083 [2]中国科学院大学,北京100086

出　　处：《微特电机》2022年第9期7-12,19,共7页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(51806231);中国科学院战略性先导科技专项(B类)(XDB35000000)。

摘　　要：研制了一种新型双动圈式直线电机,基于等效磁路法研究了该电机部件的结构形态、体积、磁性能等因素对电机效率的影响,并在特定冷指负载下进行了结构参数对电机效率影响的数值模拟。研究了双活塞对置式压缩机的轴向颤振,仿真分析了双侧参数不一致对电机的一阶和二阶轴向颤振力的影响,并进行了实验验证,提出了削弱颤振的方法。设计出一款效率达到88.7%的电机,通过参数调整法将一阶颤振削弱66.7%,二阶颤振削弱78.3%。A novel dual moving-coil linear motor was developed. Based on the equivalent magnetic circuit method, the influences of the structure, size and magnetic properties of soft and permanent magnetic materials on the motor efficiency were analyzed. The influences of the structure parameters on the motor efficiency under a certain cold finger thermal load were numerically simulated. The axial exported forces of double-piston opposed compressor was studied. The influence of inconsistent state of the two-side parameters on axial first and second harmonic exported forces of the compressor was analyzed in detail. The method to reduce the axial forces was proposed and verified by experiment. A compressor with a motor efficiency of 88.7% was designed, and the first harmonic exported force was weakened by 66.7% and the second harmonic exported force was weakened by 78.3% through parameter regulation.

关 键 词：直线电机 等效磁路 电机效率 数值模拟 轴向颤振 

分 类 号：TM359.4[电气工程—电机]