Adaptive alternating current/direct current universal electromagnetic mechanism with permanent magnet
A common AC and DC, electromagnetic mechanism technology, applied to the power device inside the switch, etc., can solve the problems of unstable operating characteristics of the electromagnetic mechanism, accidents, changes in the operating characteristics of the electromagnetic mechanism, etc., to reduce the risk of production and maintenance processes being affected , Improve reliability, improve the effect of moving speed
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[0019] The present invention is described in further detail below in conjunction with accompanying drawing:
[0020] see Figure 1-2 , The electromagnetic mechanism of the present invention includes a moving iron core 7 , a static iron core 6 , a coil system 5 , a yoke iron system 4 , a permanent magnet 1 and its pole cap 2 , and a fixed accessory 3 . When the current flows through the coil system, there are two forces acting on the moving iron core, one is the electromagnetic attraction F generated between the moving and static iron cores due to the excitation of the coil current 1 , its value increases with the increase of current; one is the attraction force F generated by the permanent magnet 2 , its value has nothing to do with the current value, but only depends on the characteristics of the permanent magnet and the structure of the electromagnetic mechanism. f 1 and F 2 The directions of the two forces are opposite, as the current increases, once F 1 and F 2 When ...
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