Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Patent
1993-06-07
1994-10-25
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Polarity-responsive
335 83, 335129, H01H 5122
Patent
active
053593057
ABSTRACT:
An electromagnetic relay includes a pair of contacts of high fusion-bonding resistance and a further pair of contacts of low contact resistance, which pairs being connected mutually in parallel relationship, with an actuator of an electromagnet unit interposed between them and respectively having a movable contactor carrying a movable contact of the pair and provided for contact opening and closing with respect to a stationary contact of the pair by means of the actuator of the electromagnet unit, whereby the pair of contacts of low contact resistance can be prevented from causing any fusion-bonding and any temperature rise around the pair can be effectively restrained.
REFERENCES:
patent: 4625191 (1986-11-01), Oberndorfer et al.
Kanemoto Naoki
Kawamoto Tetsuyasu
Kitamura Nobuhiro
Kutsuna Masahiro
Shibata Kiwamu
Donovan Lincoln
Matsushita Electric & Works Ltd.
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