High reliability solenoid switch

摘要

A fail-safe solenoid switching mechanism (11) uses a reciprocating switch (15) to establish make-or-break connections. In order to increase the effective life of shorting bars on the switch, the switch's reciprocating part 23 is rotated by a ratcheting mechanism each time the switch (15) is cycled. Advantages include enhanced reliability, even when the switching mechanism (11) sees extended quiescant periods between operations.