Electric solenoid structure having elastomeric biasing member

摘要

An apparatus and method directed to the art of providing an electrically insulative electric solenoid for starting internal combustion engines are provided. The solenoid has a housing; a coil unit within the housing comprising a hollow can with an open end, and a bobbin, an armature, and a bridging contact assembly positioned in the can; a flux washer abutting the open end of the can; a mounting plate abutting the open end of the housing, and an electrically insulative biasing member positioned between the mounting plate and the flux washer and between the mounting plate and the bobbin.

主权项

1. A solenoid unit, the solenoid comprising:
a hollow open-ended housing; a coil assembly housed in the housing comprising a cup-shaped can, a bobbin with a center tube and an outward projection extending outwardly coaxially from the center tube, an armature within the bobbin, and a flux washer abutting the open end of the cup-shaped can; at least a portion of the bobbin outward projection extending through the flux washer and beyond the open end of the housing; a bridging contact assembly comprising a contact actuation pin and a bridging contact affixed to die contact actuation pin operatively connected to the coil assembly opposite the bobbin outward projection; a mounting plate affixed to the open end of the housing; an electrically insulative biasing member having a body with a first surface, a second surface opposite the first surface, a cavity extending inwardly from the first surface towards the second surface, and a leg extending outwardly from the body second surface; the bobbin outward projection received within the biasing member cavity; and the biasing member positioned between the mounting plate and the flux washer with the biasing member leg abutting the mounting plate and the biasing member first surface abutting the flux washer.