Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Patent
1991-11-19
1993-12-14
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Polarity-responsive
335 80, 335 85, H01H 5122
Patent
active
052706745
ABSTRACT:
An electromagnetic relay of the present invention has a large dielectric strength between a coil and each contact because of an insulative member interposed therebetween. Even if the straight distance between the coil and each contact is small, it is possible to obtain a sufficient dielectric strength without an extra process. Moreover, since a leg part of the coil terminal is coated with an insulative resin, the dielectric strength between the coil terminal and a movable iron element or a movable contact piece is enhanced. An insertion window formed in an insulating plate of the coil helps to insert a thickness gauge with high positioning accuracy.
REFERENCES:
patent: 4346359 (1982-08-01), Pirner et al.
patent: 5015978 (1991-05-01), Yokoo et al.
patent: 5084688 (1992-01-01), Martino
patent: 5095294 (1990-03-01), Chikira et al.
patent: 5117209 (1992-05-01), Sato
patent: 5126709 (1992-06-01), Tanaka et al.
Patent Abstracts of Japan, vol. 14, No. 182.
Kawai Mitsuhiro
Nakanishi Yoichi
Noda Masayuki
Sagawa Hiroyuki
Sako Kazumi
Donovan Lincoln
Omron Corporation
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