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US 2004/0000981 A1Published application
Low noise relay
AssigneeTyco Electronics Corporation
InventorsRoger L. Thrush, Robert D. Irlbeck
Life of this patent
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Abstract
An electromagnetic relay (2) includes noise dampening means (20/32/34), such as an elastomeric insert, a noise dampening composition or mataerial, or a resin located at the juncture between the relay armature (4) and the spring (6), which noise dampening means (20/32/34) reduces noise generated by contact between the armature (4) and the spring (6) as the relay (2) is energized and the armature (4) is pulled into the core (8) and when the relay (2) is de-energized and the spring (6) biases the armature (4) away from the core (8).
Claims16
An electromagnetic relay comprising:
- a) a magnetic subassembly including a coil surrounding a core;
- b) an armature movable between a first position in contact with the core and a second position spaced from the core, said armature being movable in response to generation of a magnetic field in the core;
- c) a spring biasing the armature into the second position;
- and
- d) noise dampening means located at the juncture between the armature and the spring.
2 more elements
Dependencies are inferred from the claim text.