Invention Application
US20150311005A1 CIRCUIT BREAKERS WITH CLOCK SPRING DRIVES AND/OR MULTI-LOBE DRIVE CAMS AND RELATED ACTUATORS AND METHODS 有权
具有时钟弹簧驱动器和/或多个驱动器的电路断路器及相关执行器和方法

CIRCUIT BREAKERS WITH CLOCK SPRING DRIVES AND/OR MULTI-LOBE DRIVE CAMS AND RELATED ACTUATORS AND METHODS
Abstract:
Spring operated actuator devices for an electrical circuit breaker and/or electrical switching device include at least one clock spring comprising a disc shaped body with gear teeth and a spiral spring, a cam shaft holding the at least one clock spring with an inner end portion of the spiral spring attached to the cam shaft, and a drive cam held by the cam shaft adapted to be in communication with a follower that directs an actuator to open or close a mobile contact to maintain open and closed energy status of the electrical circuit. The at least one clock spring is configured as a closing spring of the spring operated actuator.
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