Surface mount type leadless electromagnetic relay
AssigneeNEC Corporation
InventorsNaoto Okihara, Katsuto Kojima, Masayuki Morimoto, Matsujiro Ikeda, Naohiro Tanioka
Life of this patent
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Abstract
In a surface mount type leadless electromagnetic relay, movable contacts, movable contact springs, stationary contacts and terminals which are electrically connected to external circuit from coils are formed integrally with a base formed of an insulating material. The terminals are extended to the bottom of the body of the relay. The entire relay has a height and a mounting area which are respectively equal to the height and mounting area of its body.
Claims16
A surface mount type leadless electromagnetic relay comprising:
- a coil assembly comprising an iron core, a coil spool containing said iron core such that said iron core is partly exposed to an outside, and coils wound round said coil spool;
- an armature assembly comprising an armature contacting at least one end portion of said iron core at one end portion thereof, movable contact springs each having at least one movable contact at an end thereof, and a support formed of an insulating material and supporting said armature and said movable contact springs;
- a terminal assembly comprising terminals including stationary contact terminals each holding at least one stationary contact facing said at least one movable contact;
- and
- a base formed of an insulating material and accommodating said coil assembly therein;
- wherein said at least one movable contact, said movable contact springs, said at least one stationary contact and said terminals of said terminal assembly, which are electrically connected to external circuit from said coils are formed integrally with said base and held in close contact with a bottom of a body of said relay.
A surface mount type leadless electromagnetic relay comprising:
- a coil assembly comprising an iron core, a coil spool containing said iron core such that said iron core is partly exposed to an outside, and coils wound round said coil spool;
- an armature assembly comprising an armature contacting at least one end portion of said iron core at one end portion thereof, movable contact springs each having at least one movable contact at an end thereof, and a support formed of an insulating material and supporting said armature and said movable contact springs;
- a terminal assembly comprising terminals including stationary contact terminals each holding at least one stationary contact facing said at least one movable contact;
- an upper base formed of an insulating material and accommodating said coil assembly;
- and
- a lower base formed of an insulating material, and having on a surface thereof surface terminals formed in a preselected pattern by one of plating and metal film application and corresponding to said at least one movable contact, said movable contact springs, said at least one stationary contact, and said terminals of said terminal assembly electrically connected to external circuitry from said coils;
- wherein said upper base and said lower base are mechanically and electrically connected to each other, and wherein said surface terminals are extended to a bottom of a body of said relay.
Dependencies are inferred from the claim text.