Relay with automated overtravel adjustment

摘要

An electromagnetic relay (10) has a relay coil (14), an armature (16), a pusher (18) and a contact system (12). The armature (16) is actuated by the relay coil (14) and linked to the pusher (18) to drive the pusher (18) to operate the contact system (12). A set of stationary contact springs (26) and a set ofmoveable contact springs (20) have a gap separating them. The moveable contact springs (20) connect to the pusher (18) and to a pivot point. The stationary springs (26) have a notch (30) therein adjacent to a portion of a base structure (28). The pusher (18) movement causes the stationary contact springs (26) and the moveable contact springs (20) to engage or disengage, and to automatically adjust an overtravel angle of the or each stationary contact spring (26) relative to the associated moveable contact spring (20) by bending the stationary contact spring (26) at the notch (30) of the stationary contact spring (26).