Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1984-05-16
1985-08-13
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
335300, H01H 6702
Patent
active
045353115
ABSTRACT:
In an electromagnetic relay, a first stationary contact member (25) has a first, elongated portion (25a) extending between first and second insulative supports and a second portion (25b) extending in a direction normal to the first portion. The second portion includes a first stationary contact (25c) element and a heat radiating surface (25b, 25f) for radiating a substantial amount of heat generated by an arc so that the amount of heat which is conducted to the first support (13) is insufficient to cause a fusion to occur therein. A second stationary contact member (26) has a third, elongated portion (26a) extending between the first and second supports and a fourth, elongated portion (26b) extending in a direction normal to the third portion in spaced relationship to the second portion (25b) and having a second stationary contact element (26c) in opposed relationship with the first stationary contact element. A coiled-core structure is secured between the insulative supports for operating a movable contact member between the first and second stationary contact elements.
REFERENCES:
patent: 2528734 (1950-11-01), Brass
patent: 2627007 (1953-01-01), Richards
patent: 4033255 (1977-07-01), Kleist et al.
Ide Tatsumi
Morimoto Masayuki
Okihara Naoto
Harris George
NEC Corporation
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