Electromechanical switches with segmented coils

Details Electromechanical switches with segmented coils Electromechanical switches with segmented coils

1991-10-17

1993-04-20

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Polarity-responsive

335138, H01H 5122

Patent

active

052046460

ABSTRACT:
A segmented coil has individual segments mounted on a common electromechanical switch plunger. The e.m.f. developed by the coil segments are superposed so that a reduced input voltage, relative to a continuous single coil, is capable of translating the plunger between two oppositely situated sets of switch contacts. The segmented coil structure assumes the same wire thickness as that of a prior art continuous coil operating with an input voltage of greater value. The result is retention of a small switch package for reduced voltage levels due to the fact that coil wire diameter and the number of turns may be kept the same as for a continuous coil operating with a higher voltage.

REFERENCES:
patent: 2335382 (1943-11-01), Bonanno
patent: 4370530 (1983-01-01), Wayland
patent: 4535291 (1985-08-01), Lee et al.

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