Relay with a movable assembly having a dampening effect

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive

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335105, H01H 5122

Patent

active

057035490

ABSTRACT:
A relay for use particularly in motor vehicles has a stable ferromagnetic core, an excitation coil wound around the core and a movable assembly, composed by a movable ferromagnetic armature, connected to a blade carrying an electric contact. The blade is movable with respect to the armature and has a fulcrum in an appropriate seat obtained in the armature. The blade is constrained to the armature in an elastic fashion, but is suitable to produce a damping effect on the bouncing phenomenon. The relay also has a return spring to maintain the assembly in a position of maximum air gap with respect to the stable core, when the device is in a release condition, whereby a leaf spring is provided, being fixed in a predetermined point of the movable armature, which constrains for elastic reaction the movement of the movable blade and maintains the desired pressure contact on the electric contact.

REFERENCES:
patent: 5319331 (1994-06-01), Hirawata et al.
patent: 5329265 (1994-07-01), Guidi et al.
patent: 5394127 (1995-02-01), Hendel

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