Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Patent
1984-04-23
1986-05-06
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Polarity-responsive
335 78, 335202, H01H 5122
Patent
active
045875014
ABSTRACT:
A polarized electromagnetic relay having four sets of single-pole double-through contact switches comprises a coil spool wound with a coil, a bar-like core inserted in the coil spool, an elongated yoke extending in parallel with the core and having two pairs of laterally opposing erect legs at both ends thereof, respectively, wherein the pole ends of the core are disposed, respectively, between the paired erect leg. A pair of movable armatures each composed of a permanent magnet having pole pieces at both sides are so disposed between the paired erect legs of the yoke, respectively, that the pole end of the core is positioned between the pole pieces of the permanent magnet. The pair of the armatures are slideably supported on guide means formed in end collars of the coil spool so that the armatures can move independent of each other. The relay exhibits high sensitivity with a miniaturized structure and assures reliable switching operations.
REFERENCES:
patent: 3993971 (1976-11-01), Ono et al.
Agatahama Shunichi
Yamashita Shoichi
Broome Harold
Omron Tateisi Electronics Co.
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