Interlock module, circuit breaker movement unit and switchboard comprising same

A circuit breaker movement unit comprising:

• a cradle on which a circuit breaker is mounted;
• an interlock module disposed on a front surface of the cradle to allow movement of the circuit breaker after a handle is inserted;
• and
• an interlock guide pin pressing an outer case of the interlock module downward,
• wherein the interlock module comprises:
• the outer case having an upper surface on which the interlock guide pin is movable and including a plurality of grooves formed in the upper surface such that the interlock guide pin is inserted;
• a guide plate disposed inside the outer case and moved toward a rear surface of the outer case when the handle is inserted into a handle insertion opening;
• and
• a link plate connected to the guide plate and moved toward the upper surface of the outer case when the guide plate is moved toward the rear surface of the outer case, and
• wherein the interlock guide pin is moved by the link plate to be movable at a height equal to or higher than that of the upper surface of the outer case.

A switchboard comprising:

• a switchboard case having an inner space;
• a circuit breaker drawn into the switchboard case;
• and
• a circuit breaker movement unit configured to move the circuit breaker to a closing position, a test position, and a run position inside the switchboard case,
• wherein the circuit breaker movement unit comprises:
• a cradle on which the circuit breaker is mounted;
• an interlock module disposed on a front surface of the cradle to allow movement of the circuit breaker after a handle is inserted;
• and
• an interlock guide pin pressing an outer case of the interlock module downward,
• wherein the interlock module comprises:
• the outer case having an upper surface on which the interlock guide pin is movable and including a plurality of grooves formed in the upper surface such that the interlock guide pin is inserted;
• a guide plate disposed inside the outer case and moved toward a rear surface of the outer case when the handle is inserted into a handle insertion opening;
• and
• a link plate connected to the guide plate and moved toward the upper surface of the outer case when the guide plate is moved toward the rear surface of the outer case,
• wherein the interlock guide pin is moved by the link plate to be movable at a height equal to or higher than that of the upper surface of the outer case.