MAGNETIC SYSTEM FOR ELECTROMAGNETIC RELAY

摘要

PROBLEM TO BE SOLVED: To minimize coil loss and a stray magnetic flux. SOLUTION: At least two iron cores 15, 16 to extend out in parallel with each other along the overall length of one common coil 18 are provided on a magnetic system for an electromagnetic relay. Each of the iron cores is a part of a characteristic magnetic circuit to actuate an armature, and the armature actuates a contact system to correspond by being arranged in this magnetic circuit. An interval between the iron cores 15, 16 inside of the coil 18 is made smaller than the maximum dimensions of a cross-sectional surface of each of the iron cores, and the loss and the stray magnetic flux are minimized by using the magnetic flux to generate on the coil 18 to the maximum.