Actuator for circuit breaker and method for manufacturing the same

摘要

The present disclosure may fix the second yoke without using an upper cover and a lower cover, thereby having an effect of simplifying the entire structure, and reducing the fabrication cost, and decreasing the fabrication time.

主权项

1. An actuator for a circuit breaker comprising:
a frame; a coil provided at both inner sides of the frame; a permanent magnet disposed adjacent to the coil; a first yoke provided to surround the coil to form a main magnetic path; and a second yoke provided at a lower side of the first yoke to form an auxiliary magnetic path,
wherein:fitting portions are provided at both ends of the second yoke;fitting holes are formed at both upper sides of the first yoke and configured to accommodate the fitting portions;engaging protrusions are formed at both upper sides of the fitting holes to secure the fitting portions to the fitting holes; andan upper surface of each of the engaging protrusions is formed to be inclined downward and in an inward direction toward the fitting hole.