XIAO Bin, WEN Bao zhu, ZHU Zheng wei

 

(ZHENHUA QUNYING RELAY Co.,LTD, Guiyang 550018, China)

 

 

Abstract: Aiming at the problem of complex design of magnetic latching contactor, a rapid design method of the electromagnetic system of magnetic latching contactor was studied, and a method for rapid calculation of the electromagnetic system of magnetic latching contactor based on finite element analysis software FLUX was proposed. In the design, a three dimensional graph was first plotted in accordance with the shape and index demand of magnetic latching contactor, then simulation analysis on the static attractive torque characteristic of the electromagnetic system was conducted to obtain the latching force of magnetic latching contactor armature in each stroke, next combined with the mechanical counterforce characteristic curve of the contactor, the attractive torque characteristic curve of the contactor was plotted, whether the contactor can act within the specified action voltage range was verified, and whether the impact indexes of the contactor can meet the requirements of design was verified, finally whether the design of the electromagnetic system was reasonable. The results indicate that simulation results of the proposed methods are similar to practically measured parameters of the sample, the method can rapidly optimize and design the electromagnetic system of magnetic latching contactor, thus improving the efficiency of design.

 

Key words: FLUX; magnetic latching contactor; simulation analysis; attractive torque characteristic curve