直线压缩机用动磁式直线振荡执行器损耗分析

摘要

直线压缩机驱动用直线振荡执行器的损耗与输入激励、运行工况、执行器自身结构与材料等有关,损耗的大小直接影响执行器温升的变化,进而影响执行器的性能与工作效率.研究了动磁式直线振荡执行器的结构与工作原理,对其损耗进行了分类,建立了铜损以及基于分离铁耗铁损的数学模型.利用有限元软件对压缩机共振工况下执行器的损耗进行了仿真,并通过锁定动子的试验验证了仿真模型的可靠性.%The loss of the moving-magnet linear oscillatory actuator of the linear compressor is related to input excitation,operating conditions,actuator structure and material,etc.The amount of its loss directly affects the change of the actuator temperature rise and its performance and efficiency.This paper researches on the structure and working principle of the moving-magnet linear oscillatory actuator,classifies the loss of the actuator and establishes the mathematical model of copper loss and iron loss and uses the finite element software to simulate the loss of the actuator in the compressor resonant condition,and then,verifies the reliability of the simulation model by the experiment of the locking mover.