Patent ID: 7262377
Filing Date: 2007-08-28
Classification: H01H

Abstract:
1. A limit switch control device for an actuator comprising at least: two limit switches, a circuit board, and a connecting rod assembly; wherein: the two limit switches are disposed on the circuit board, the circuit board is disposed on a stator of the actuator, a mover of the actuator triggers one of the limit switches at a start position of the mover's travel path; the connecting rod assembly includes two fixing members, a connecting rod, and at least one elastic member, the two fixing members are fixed at both ends of the connecting rod, each of the fixing members is provided with a driving portion located correspondingly to a predetermined travel path of the mover, a driving portion of the fixing member at an end position of the mover's travel path serves to interfere with the mover, the driving portion of the fixing member at the start position of the mover's travel path is located between the two limit switches, the elastic member is located between the driving portion of the fixing member and the limit switch at the start position of the mover's travel path, the connecting rod assembly cooperates with the elastic member to provide a brake function to the mover when the mover moves to the start position or the end position of the mover's travel path, an abutting protrusion with a guiding slope is formed on the fixing member at the start position of the mover's travel path, and the abutting protrusion serves to trigger the other limit switch.