Switching assembly with mechanical advantage device
AssigneeEaton Intelligent Power Limited
InventorsSomnath Janaba Devarde, Arthur Jur, Joe Denton Pardue
Life of this patent
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Abstract
A high current switching device includes an electrical switch assembly and an input shaft operatively connected to the electrical switch assembly. An actuator assembly is attached to the input shaft and is configured to move the input shaft to operate the electrical switch assembly. The actuator assembly includes a mechanical advantage device operatively attached to the input shaft. An actuator is coupled to the mechanical advantage device such that movement of the actuator causes movement of the input shaft to operate the electrical switch assembly. The mechanical advantage device is configured to decrease an amount of force required to move the input shaft by the actuator.
Claims17
A high current switching device comprising:
- an electrical switch assembly;
- an input shaft operatively connected to the electrical switch assembly;
- and
- an actuator assembly attached to the input shaft and configured to move the input shaft to operate the electrical switch assembly, the actuator assembly comprising:
- a mechanical advantage device operatively attached to the input shaft;
- and
- an actuator coupled to the mechanical advantage device such that movement of
- the actuator causes movement of the input shaft to operate the electrical switch assembly;
- wherein the mechanical advantage device is configured to decrease an amount of force required to move the input shaft by the actuator,
- wherein a force reduction ratio provided by the mechanical advantage device is at least about 3:1.
A high current switching device comprising:
- an electrical switch assembly;
- an input shaft operatively connected to the electrical switch assembly;
- and
- an actuator assembly attached to the input shaft and configured to move the input shaft to operate the electrical switch assembly, the actuator assembly comprising:
- a ratchet assembly operatively attached to the input shaft;
- and
- an actuator coupled to the ratchet assembly such that movement of the actuator causes movement of the input shaft to operate the electrical switch assembly;
- wherein the ratchet assembly is configured to allow motion of the actuator in a first direction to move the input shaft in the first direction while preventing motion of the input shaft in a second direction opposite the first direction when the actuator is moved in the second direction,
- wherein the ratchet assembly comprises a ratchet ring including an internal gear and at least one pawl configured to engage the internal gear to configure the ratchet assembly to transfer motion of actuator to the input shaft in the first direction and not the second direction.
A mechanical advantage assembly configured to couple an actuator to a switching device, the mechanical advantage device assembly comprising:
- a mechanical advantage device configured to be operatively coupled to the input shaft;
- and
- a hub configured to secure the mechanical advantage device to the input shaft, wherein the mechanical advantage device is configured to decrease an amount of force required to move the input shaft by the actuator,
- wherein a force reduction ratio provided by the mechanical advantage device is at least about 3:1.
Dependencies are inferred from the claim text.