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ROTARY FULCRUM TYPE POLARIZED ELECTROMAGNET AND ROTARY FULCRUM TYPE POLARIZED RELAY INTO WHICH THIS IS INCORPORATED
ROTARY FULCRUM TYPE POLARIZED ELECTROMAGNET AND ROTARY FULCRUM TYPE POLARIZED RELAY INTO WHICH THIS IS INCORPORATED
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机译:旋转烟台型极化电磁铁和旋转烟台型极化继电器的组合
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摘要
PURPOSE: To provide a rotary fulcrum type polarized electromagnet from which a nonmagnetic substance metallic piece can be omitted and by which dispersion of sensitivity and opening characteristics is hardly caused when it is used in a relay. ;CONSTITUTION: A rotary fulcrum type polarized electromagnet is composed of a coil block 2 where a coil 2A is wound round an almost U-shaped iron core 2B, a plate-like yoke 4 which is inserted and fixed between magnetic poles 3A and 3B of the coil block 2 and forms a magnetic circuit between it and the iron core 2B, a rectangular permanent magnet 5 arranged in a recessed part 4A arranged in a central part of the plate-like yoke 4 and a contactor 6 which rotates with a center part as a fulcrum and whose end part 6A and end part 6B respectively contact with the magnetic pole 3A and the magnetic pole 3B. In the coil block 2, a magnetic pole surface 3a and a magnetic pole surface 3b are respectively formed on upper surfaces of the magnetic pole 3A and the magnetic pole 3B, and a coil frame 2C is extended to the magnetic pole surface 3b, and magnetic resistance is increased. A thin film insulating part 7 instead of a nonmagnetic substance metallic piece is formed on the magnetic pole surface 3b.;COPYRIGHT: (C)1996,JPO
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