Structure Optimization and Experimental Verification of Large Thrust Voice Coil Motor
For the high performance electro-hydraulic proportional valve required large thrust drive,five structural forms of voice coil motor are proposed.Using the electromagnetic simulation tool ANSYS Maxwell,the thrust and magnetic field distribution characteristics of voice coil motors with different structures are calculated,and the effects of core radius and coil displacement on the thrust and magnetic field distribution of voice coil motors with different structures are analyzed.The results show that among the five structures,the internal magnetic type without iron core,the coil tightly attached to the shell,and the segmented design of the permanent magnet had the maximum thrust,reaching 75.29 N,which was verified through experiments;Adding magnetic rings on both sides of the permanent magnet and appropriately segmenting the permanent magnet can effectively enhance the thrust of the voice coil motor.
voice coil motorthruststructure optimizationelectromagnetic field simulation
万方数据
维普
